Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

QOM boilerplate cleanup Documentation build fix: * memory: Remove kernel-doc comment marker (Eduardo Habkost) QOM cleanups: * Rename QOM macros for consistency between TYPE_* and type checking constants (Eduardo Habkost) QOM new macros: * OBJECT_DECLARE_* and OBJECT_DEFINE_* macros (Daniel P. Berrangé) * DECLARE_*_CHECKER macros (Eduardo Habkost) Automated QOM boilerplate changes: * Automated changes to use DECLARE_*_CHECKER (Eduardo Habkost * Automated changes to use OBJECT_DECLARE* (Eduardo Habkost) # gpg: Signature made Thu 10 Sep 2020 19:17:49 BST # gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6 # gpg: issuer "ehabkost@redhat.com" # gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full] # Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6 * remotes/ehabkost/tags/machine-next-pull-request: (33 commits) virtio-vga: Use typedef name for instance_size vhost-user-vga: Use typedef name for instance_size xilinx_axienet: Use typedef name for instance_size lpc_ich9: Use typedef name for instance_size omap_intc: Use typedef name for instance_size xilinx_axidma: Use typedef name for instance_size tusb6010: Rename TUSB to TUSB6010 pc87312: Rename TYPE_PC87312_SUPERIO to TYPE_PC87312 vfio: Rename PCI_VFIO to VFIO_PCI usb: Rename USB_SERIAL_DEV to USB_SERIAL sabre: Rename SABRE_DEVICE to SABRE rs6000_mc: Rename RS6000MC_DEVICE to RS6000MC filter-rewriter: Rename FILTER_COLO_REWRITER to FILTER_REWRITER esp: Rename ESP_STATE to ESP ahci: Rename ICH_AHCI to ICH9_AHCI vmgenid: Rename VMGENID_DEVICE to TYPE_VMGENID vfio: Rename VFIO_AP_DEVICE_TYPE to TYPE_VFIO_AP_DEVICE dev-smartcard-reader: Rename CCID_DEV_NAME to TYPE_USB_CCID_DEV ap-device: Rename AP_DEVICE_TYPE to TYPE_AP_DEVICE gpex: Fix type checking function name ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
author: Peter Maydell <peter.maydell@linaro.org> 2020-09-11 19:26:51 +0100
committer: Peter Maydell <peter.maydell@linaro.org> 2020-09-11 19:26:51 +0100
commit: f4ef8c9cc10b3bee829b9775879d4ff9f77c2442 (patch)
tree: 8245341c3ebfe98b9673bf7a8cb818b6d494c76f /hw
parent: 2499453eb1cbb68a45d7562a180afd7659007fd4 (diff)
parent: b84bf23c88699098973de3bdec316c796f1b3794 (diff)
368 files changed, 2391 insertions, 1669 deletions
diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h
index e763da2c02..ff70c5a971 100644
--- a/hw/9pfs/virtio-9p.h
+++ b/hw/9pfs/virtio-9p.h
@@ -4,18 +4,19 @@
 #include "standard-headers/linux/virtio_9p.h"
 #include "hw/virtio/virtio.h"
 #include "9p.h"
+#include "qom/object.h"
 
-typedef struct V9fsVirtioState
-{
+struct V9fsVirtioState {
     VirtIODevice parent_obj;
     VirtQueue *vq;
     size_t config_size;
     VirtQueueElement *elems[MAX_REQ];
     V9fsState state;
-} V9fsVirtioState;
+};
+typedef struct V9fsVirtioState V9fsVirtioState;
 
 #define TYPE_VIRTIO_9P "virtio-9p-device"
-#define VIRTIO_9P(obj) \
-        OBJECT_CHECK(V9fsVirtioState, (obj), TYPE_VIRTIO_9P)
+DECLARE_INSTANCE_CHECKER(V9fsVirtioState, VIRTIO_9P,
+                         TYPE_VIRTIO_9P)
 
 #endif
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index e6163bb6ce..1574f7db3e 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -45,6 +45,7 @@
 #include "migration/vmstate.h"
 #include "hw/core/cpu.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define GPE_BASE 0xafe0
 #define GPE_LEN 4
@@ -54,7 +55,7 @@ struct pci_status {
     uint32_t down;
 };
 
-typedef struct PIIX4PMState {
+struct PIIX4PMState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -89,10 +90,11 @@ typedef struct PIIX4PMState {
     CPUHotplugState cpuhp_state;
 
     MemHotplugState acpi_memory_hotplug;
-} PIIX4PMState;
+};
+typedef struct PIIX4PMState PIIX4PMState;
 
-#define PIIX4_PM(obj) \
-    OBJECT_CHECK(PIIX4PMState, (obj), TYPE_PIIX4_PM)
+DECLARE_INSTANCE_CHECKER(PIIX4PMState, PIIX4_PM,
+                         TYPE_PIIX4_PM)
 
 static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
                                            PCIBus *bus, PIIX4PMState *s);
diff --git a/hw/acpi/vmgenid.c b/hw/acpi/vmgenid.c
index 2df7623d74..53db6af75d 100644
--- a/hw/acpi/vmgenid.c
+++ b/hw/acpi/vmgenid.c
@@ -198,7 +198,7 @@ static void vmgenid_realize(DeviceState *dev, Error **errp)
 
     if (!bios_linker_loader_can_write_pointer()) {
         error_setg(errp, "%s requires DMA write support in fw_cfg, "
-                   "which this machine type does not provide", VMGENID_DEVICE);
+                   "which this machine type does not provide", TYPE_VMGENID);
         return;
     }
 
@@ -206,7 +206,7 @@ static void vmgenid_realize(DeviceState *dev, Error **errp)
      * device. Check if there are several.
      */
     if (!find_vmgenid_dev()) {
-        error_setg(errp, "at most one %s device is permitted", VMGENID_DEVICE);
+        error_setg(errp, "at most one %s device is permitted", TYPE_VMGENID);
         return;
     }
 
@@ -232,7 +232,7 @@ static void vmgenid_device_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo vmgenid_device_info = {
-    .name          = VMGENID_DEVICE,
+    .name          = TYPE_VMGENID,
     .parent        = TYPE_DEVICE,
     .instance_size = sizeof(VmGenIdState),
     .class_init    = vmgenid_device_class_init,
diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c
index 29d44dfb06..d02b14d89f 100644
--- a/hw/alpha/typhoon.c
+++ b/hw/alpha/typhoon.c
@@ -15,6 +15,7 @@
 #include "hw/irq.h"
 #include "alpha_sys.h"
 #include "exec/address-spaces.h"
+#include "qom/object.h"
 
 
 #define TYPE_TYPHOON_PCI_HOST_BRIDGE "typhoon-pcihost"
@@ -49,16 +50,17 @@ typedef struct TyphoonPchip {
     TyphoonWindow win[4];
 } TyphoonPchip;
 
-#define TYPHOON_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(TyphoonState, (obj), TYPE_TYPHOON_PCI_HOST_BRIDGE)
+typedef struct TyphoonState TyphoonState;
+DECLARE_INSTANCE_CHECKER(TyphoonState, TYPHOON_PCI_HOST_BRIDGE,
+                         TYPE_TYPHOON_PCI_HOST_BRIDGE)
 
-typedef struct TyphoonState {
+struct TyphoonState {
     PCIHostState parent_obj;
 
     TyphoonCchip cchip;
     TyphoonPchip pchip;
     MemoryRegion dchip_region;
-} TyphoonState;
+};
 
 /* Called when one of DRIR or DIM changes.  */
 static void cpu_irq_change(AlphaCPU *cpu, uint64_t req)
diff --git a/hw/arm/collie.c b/hw/arm/collie.c
index 4b35ef4bed..a49f4a1c7c 100644
--- a/hw/arm/collie.c
+++ b/hw/arm/collie.c
@@ -18,16 +18,18 @@
 #include "hw/block/flash.h"
 #include "exec/address-spaces.h"
 #include "cpu.h"
+#include "qom/object.h"
 
-typedef struct {
+struct CollieMachineState {
     MachineState parent;
 
     StrongARMState *sa1110;
-} CollieMachineState;
+};
+typedef struct CollieMachineState CollieMachineState;
 
 #define TYPE_COLLIE_MACHINE MACHINE_TYPE_NAME("collie")
-#define COLLIE_MACHINE(obj) \
-    OBJECT_CHECK(CollieMachineState, obj, TYPE_COLLIE_MACHINE)
+DECLARE_INSTANCE_CHECKER(CollieMachineState, COLLIE_MACHINE,
+                         TYPE_COLLIE_MACHINE)
 
 static struct arm_boot_info collie_binfo = {
     .loader_start = SA_SDCS0,
diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c
index c96f2ab9cf..e2ace803ef 100644
--- a/hw/arm/highbank.c
+++ b/hw/arm/highbank.c
@@ -36,6 +36,7 @@
 #include "hw/cpu/a9mpcore.h"
 #include "hw/cpu/a15mpcore.h"
 #include "qemu/log.h"
+#include "qom/object.h"
 
 #define SMP_BOOT_ADDR           0x100
 #define SMP_BOOT_REG            0x40
@@ -155,17 +156,18 @@ static const MemoryRegionOps hb_mem_ops = {
 };
 
 #define TYPE_HIGHBANK_REGISTERS "highbank-regs"
-#define HIGHBANK_REGISTERS(obj) \
-    OBJECT_CHECK(HighbankRegsState, (obj), TYPE_HIGHBANK_REGISTERS)
+typedef struct HighbankRegsState HighbankRegsState;
+DECLARE_INSTANCE_CHECKER(HighbankRegsState, HIGHBANK_REGISTERS,
+                         TYPE_HIGHBANK_REGISTERS)
 
-typedef struct {
+struct HighbankRegsState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
 
     MemoryRegion iomem;
     uint32_t regs[NUM_REGS];
-} HighbankRegsState;
+};
 
 static VMStateDescription vmstate_highbank_regs = {
     .name = "highbank-regs",
diff --git a/hw/arm/integratorcp.c b/hw/arm/integratorcp.c
index fe7c2b9d4b..19989b61b9 100644
--- a/hw/arm/integratorcp.c
+++ b/hw/arm/integratorcp.c
@@ -26,12 +26,14 @@
 #include "hw/hw.h"
 #include "hw/irq.h"
 #include "hw/sd/sd.h"
+#include "qom/object.h"
 
 #define TYPE_INTEGRATOR_CM "integrator_core"
-#define INTEGRATOR_CM(obj) \
-    OBJECT_CHECK(IntegratorCMState, (obj), TYPE_INTEGRATOR_CM)
+typedef struct IntegratorCMState IntegratorCMState;
+DECLARE_INSTANCE_CHECKER(IntegratorCMState, INTEGRATOR_CM,
+                         TYPE_INTEGRATOR_CM)
 
-typedef struct IntegratorCMState {
+struct IntegratorCMState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -51,7 +53,7 @@ typedef struct IntegratorCMState {
     uint32_t int_level;
     uint32_t irq_enabled;
     uint32_t fiq_enabled;
-} IntegratorCMState;
+};
 
 static uint8_t integrator_spd[128] = {
    128, 8, 4, 11, 9, 1, 64, 0,  2, 0xa0, 0xa0, 0, 0, 8, 0, 1,
@@ -326,10 +328,11 @@ static void integratorcm_realize(DeviceState *d, Error **errp)
 /* Primary interrupt controller.  */
 
 #define TYPE_INTEGRATOR_PIC "integrator_pic"
-#define INTEGRATOR_PIC(obj) \
-   OBJECT_CHECK(icp_pic_state, (obj), TYPE_INTEGRATOR_PIC)
+typedef struct icp_pic_state icp_pic_state;
+DECLARE_INSTANCE_CHECKER(icp_pic_state, INTEGRATOR_PIC,
+                         TYPE_INTEGRATOR_PIC)
 
-typedef struct icp_pic_state {
+struct icp_pic_state {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -340,7 +343,7 @@ typedef struct icp_pic_state {
     uint32_t fiq_enabled;
     qemu_irq parent_irq;
     qemu_irq parent_fiq;
-} icp_pic_state;
+};
 
 static const VMStateDescription vmstate_icp_pic = {
     .name = "icp_pic",
@@ -465,10 +468,11 @@ static void icp_pic_init(Object *obj)
 /* CP control registers.  */
 
 #define TYPE_ICP_CONTROL_REGS "icp-ctrl-regs"
-#define ICP_CONTROL_REGS(obj) \
-    OBJECT_CHECK(ICPCtrlRegsState, (obj), TYPE_ICP_CONTROL_REGS)
+typedef struct ICPCtrlRegsState ICPCtrlRegsState;
+DECLARE_INSTANCE_CHECKER(ICPCtrlRegsState, ICP_CONTROL_REGS,
+                         TYPE_ICP_CONTROL_REGS)
 
-typedef struct ICPCtrlRegsState {
+struct ICPCtrlRegsState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -477,7 +481,7 @@ typedef struct ICPCtrlRegsState {
 
     qemu_irq mmc_irq;
     uint32_t intreg_state;
-} ICPCtrlRegsState;
+};
 
 #define ICP_GPIO_MMC_WPROT      "mmc-wprot"
 #define ICP_GPIO_MMC_CARDIN     "mmc-cardin"
diff --git a/hw/arm/microbit.c b/hw/arm/microbit.c
index a91acab1cb..9a4a3d357a 100644
--- a/hw/arm/microbit.c
+++ b/hw/arm/microbit.c
@@ -18,18 +18,20 @@
 #include "hw/arm/nrf51_soc.h"
 #include "hw/i2c/microbit_i2c.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
-typedef struct {
+struct MicrobitMachineState {
     MachineState parent;
 
     NRF51State nrf51;
     MicrobitI2CState i2c;
-} MicrobitMachineState;
+};
+typedef struct MicrobitMachineState MicrobitMachineState;
 
 #define TYPE_MICROBIT_MACHINE MACHINE_TYPE_NAME("microbit")
 
-#define MICROBIT_MACHINE(obj) \
-    OBJECT_CHECK(MicrobitMachineState, obj, TYPE_MICROBIT_MACHINE)
+DECLARE_INSTANCE_CHECKER(MicrobitMachineState, MICROBIT_MACHINE,
+                         TYPE_MICROBIT_MACHINE)
 
 static void microbit_init(MachineState *machine)
 {
diff --git a/hw/arm/mps2-tz.c b/hw/arm/mps2-tz.c
index 28d9e8bfac..dbf7d63dc8 100644
--- a/hw/arm/mps2-tz.c
+++ b/hw/arm/mps2-tz.c
@@ -62,6 +62,7 @@
 #include "hw/net/lan9118.h"
 #include "net/net.h"
 #include "hw/core/split-irq.h"
+#include "qom/object.h"
 
 #define MPS2TZ_NUMIRQ 92
 
@@ -70,14 +71,15 @@ typedef enum MPS2TZFPGAType {
     FPGA_AN521,
 } MPS2TZFPGAType;
 
-typedef struct {
+struct MPS2TZMachineClass {
     MachineClass parent;
     MPS2TZFPGAType fpga_type;
     uint32_t scc_id;
     const char *armsse_type;
-} MPS2TZMachineClass;
+};
+typedef struct MPS2TZMachineClass MPS2TZMachineClass;
 
-typedef struct {
+struct MPS2TZMachineState {
     MachineState parent;
 
     ARMSSE iotkit;
@@ -99,18 +101,15 @@ typedef struct {
     qemu_or_irq uart_irq_orgate;
     DeviceState *lan9118;
     SplitIRQ cpu_irq_splitter[MPS2TZ_NUMIRQ];
-} MPS2TZMachineState;
+};
+typedef struct MPS2TZMachineState MPS2TZMachineState;
 
 #define TYPE_MPS2TZ_MACHINE "mps2tz"
 #define TYPE_MPS2TZ_AN505_MACHINE MACHINE_TYPE_NAME("mps2-an505")
 #define TYPE_MPS2TZ_AN521_MACHINE MACHINE_TYPE_NAME("mps2-an521")
 
-#define MPS2TZ_MACHINE(obj) \
-    OBJECT_CHECK(MPS2TZMachineState, obj, TYPE_MPS2TZ_MACHINE)
-#define MPS2TZ_MACHINE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(MPS2TZMachineClass, obj, TYPE_MPS2TZ_MACHINE)
-#define MPS2TZ_MACHINE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(MPS2TZMachineClass, klass, TYPE_MPS2TZ_MACHINE)
+DECLARE_OBJ_CHECKERS(MPS2TZMachineState, MPS2TZMachineClass,
+                     MPS2TZ_MACHINE, TYPE_MPS2TZ_MACHINE)
 
 /* Main SYSCLK frequency in Hz */
 #define SYSCLK_FRQ 20000000
diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
index 9f12934ca8..4ee5c38459 100644
--- a/hw/arm/mps2.c
+++ b/hw/arm/mps2.c
@@ -44,19 +44,21 @@
 #include "hw/net/lan9118.h"
 #include "net/net.h"
 #include "hw/watchdog/cmsdk-apb-watchdog.h"
+#include "qom/object.h"
 
 typedef enum MPS2FPGAType {
     FPGA_AN385,
     FPGA_AN511,
 } MPS2FPGAType;
 
-typedef struct {
+struct MPS2MachineClass {
     MachineClass parent;
     MPS2FPGAType fpga_type;
     uint32_t scc_id;
-} MPS2MachineClass;
+};
+typedef struct MPS2MachineClass MPS2MachineClass;
 
-typedef struct {
+struct MPS2MachineState {
     MachineState parent;
 
     ARMv7MState armv7m;
@@ -75,18 +77,15 @@ typedef struct {
     /* CMSDK APB subsystem */
     CMSDKAPBDualTimer dualtimer;
     CMSDKAPBWatchdog watchdog;
-} MPS2MachineState;
+};
+typedef struct MPS2MachineState MPS2MachineState;
 
 #define TYPE_MPS2_MACHINE "mps2"
 #define TYPE_MPS2_AN385_MACHINE MACHINE_TYPE_NAME("mps2-an385")
 #define TYPE_MPS2_AN511_MACHINE MACHINE_TYPE_NAME("mps2-an511")
 
-#define MPS2_MACHINE(obj)                                       \
-    OBJECT_CHECK(MPS2MachineState, obj, TYPE_MPS2_MACHINE)
-#define MPS2_MACHINE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(MPS2MachineClass, obj, TYPE_MPS2_MACHINE)
-#define MPS2_MACHINE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(MPS2MachineClass, klass, TYPE_MPS2_MACHINE)
+DECLARE_OBJ_CHECKERS(MPS2MachineState, MPS2MachineClass,
+                     MPS2_MACHINE, TYPE_MPS2_MACHINE)
 
 /* Main SYSCLK frequency in Hz */
 #define SYSCLK_FRQ 25000000
diff --git a/hw/arm/musca.c b/hw/arm/musca.c
index 4bc737f93b..16015255c8 100644
--- a/hw/arm/musca.c
+++ b/hw/arm/musca.c
@@ -33,6 +33,7 @@
 #include "hw/misc/tz-ppc.h"
 #include "hw/misc/unimp.h"
 #include "hw/rtc/pl031.h"
+#include "qom/object.h"
 
 #define MUSCA_NUMIRQ_MAX 96
 #define MUSCA_PPC_MAX 3
@@ -45,7 +46,7 @@ typedef enum MuscaType {
     MUSCA_B1,
 } MuscaType;
 
-typedef struct {
+struct MuscaMachineClass {
     MachineClass parent;
     MuscaType type;
     uint32_t init_svtor;
@@ -53,9 +54,10 @@ typedef struct {
     int num_irqs;
     const MPCInfo *mpc_info;
     int num_mpcs;
-} MuscaMachineClass;
+};
+typedef struct MuscaMachineClass MuscaMachineClass;
 
-typedef struct {
+struct MuscaMachineState {
     MachineState parent;
 
     ARMSSE sse;
@@ -81,18 +83,15 @@ typedef struct {
     UnimplementedDeviceState sdio;
     UnimplementedDeviceState gpio;
     UnimplementedDeviceState cryptoisland;
-} MuscaMachineState;
+};
+typedef struct MuscaMachineState MuscaMachineState;
 
 #define TYPE_MUSCA_MACHINE "musca"
 #define TYPE_MUSCA_A_MACHINE MACHINE_TYPE_NAME("musca-a")
 #define TYPE_MUSCA_B1_MACHINE MACHINE_TYPE_NAME("musca-b1")
 
-#define MUSCA_MACHINE(obj) \
-    OBJECT_CHECK(MuscaMachineState, obj, TYPE_MUSCA_MACHINE)
-#define MUSCA_MACHINE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(MuscaMachineClass, obj, TYPE_MUSCA_MACHINE)
-#define MUSCA_MACHINE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(MuscaMachineClass, klass, TYPE_MUSCA_MACHINE)
+DECLARE_OBJ_CHECKERS(MuscaMachineState, MuscaMachineClass,
+                     MUSCA_MACHINE, TYPE_MUSCA_MACHINE)
 
 /*
  * Main SYSCLK frequency in Hz
diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
index f2f4fc0264..2117a04171 100644
--- a/hw/arm/musicpal.c
+++ b/hw/arm/musicpal.c
@@ -34,6 +34,7 @@
 #include "exec/address-spaces.h"
 #include "ui/pixel_ops.h"
 #include "qemu/cutils.h"
+#include "qom/object.h"
 
 #define MP_MISC_BASE            0x80002000
 #define MP_MISC_SIZE            0x00001000
@@ -154,10 +155,11 @@ typedef struct mv88w8618_rx_desc {
 } mv88w8618_rx_desc;
 
 #define TYPE_MV88W8618_ETH "mv88w8618_eth"
-#define MV88W8618_ETH(obj) \
-    OBJECT_CHECK(mv88w8618_eth_state, (obj), TYPE_MV88W8618_ETH)
+typedef struct mv88w8618_eth_state mv88w8618_eth_state;
+DECLARE_INSTANCE_CHECKER(mv88w8618_eth_state, MV88W8618_ETH,
+                         TYPE_MV88W8618_ETH)
 
-typedef struct mv88w8618_eth_state {
+struct mv88w8618_eth_state {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -177,7 +179,7 @@ typedef struct mv88w8618_eth_state {
     uint32_t cur_rx[4];
     NICState *nic;
     NICConf conf;
-} mv88w8618_eth_state;
+};
 
 static void eth_rx_desc_put(AddressSpace *dma_as, uint32_t addr,
                             mv88w8618_rx_desc *desc)
@@ -483,10 +485,11 @@ static const TypeInfo mv88w8618_eth_info = {
 #define MP_LCD_TEXTCOLOR        0xe0e0ff /* RRGGBB */
 
 #define TYPE_MUSICPAL_LCD "musicpal_lcd"
-#define MUSICPAL_LCD(obj) \
-    OBJECT_CHECK(musicpal_lcd_state, (obj), TYPE_MUSICPAL_LCD)
+typedef struct musicpal_lcd_state musicpal_lcd_state;
+DECLARE_INSTANCE_CHECKER(musicpal_lcd_state, MUSICPAL_LCD,
+                         TYPE_MUSICPAL_LCD)
 
-typedef struct musicpal_lcd_state {
+struct musicpal_lcd_state {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -499,7 +502,7 @@ typedef struct musicpal_lcd_state {
     uint32_t page_off;
     QemuConsole *con;
     uint8_t video_ram[128*64/8];
-} musicpal_lcd_state;
+};
 
 static uint8_t scale_lcd_color(musicpal_lcd_state *s, uint8_t col)
 {
@@ -700,10 +703,11 @@ static const TypeInfo musicpal_lcd_info = {
 #define MP_PIC_ENABLE_CLR       0x0C
 
 #define TYPE_MV88W8618_PIC "mv88w8618_pic"
-#define MV88W8618_PIC(obj) \
-    OBJECT_CHECK(mv88w8618_pic_state, (obj), TYPE_MV88W8618_PIC)
+typedef struct mv88w8618_pic_state mv88w8618_pic_state;
+DECLARE_INSTANCE_CHECKER(mv88w8618_pic_state, MV88W8618_PIC,
+                         TYPE_MV88W8618_PIC)
 
-typedef struct mv88w8618_pic_state {
+struct mv88w8618_pic_state {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -712,7 +716,7 @@ typedef struct mv88w8618_pic_state {
     uint32_t level;
     uint32_t enabled;
     qemu_irq parent_irq;
-} mv88w8618_pic_state;
+};
 
 static void mv88w8618_pic_update(mv88w8618_pic_state *s)
 {
@@ -837,17 +841,18 @@ typedef struct mv88w8618_timer_state {
 } mv88w8618_timer_state;
 
 #define TYPE_MV88W8618_PIT "mv88w8618_pit"
-#define MV88W8618_PIT(obj) \
-    OBJECT_CHECK(mv88w8618_pit_state, (obj), TYPE_MV88W8618_PIT)
+typedef struct mv88w8618_pit_state mv88w8618_pit_state;
+DECLARE_INSTANCE_CHECKER(mv88w8618_pit_state, MV88W8618_PIT,
+                         TYPE_MV88W8618_PIT)
 
-typedef struct mv88w8618_pit_state {
+struct mv88w8618_pit_state {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
 
     MemoryRegion iomem;
     mv88w8618_timer_state timer[4];
-} mv88w8618_pit_state;
+};
 
 static void mv88w8618_timer_tick(void *opaque)
 {
@@ -1004,17 +1009,18 @@ static const TypeInfo mv88w8618_pit_info = {
 #define MP_FLASHCFG_CFGR0    0x04
 
 #define TYPE_MV88W8618_FLASHCFG "mv88w8618_flashcfg"
-#define MV88W8618_FLASHCFG(obj) \
-    OBJECT_CHECK(mv88w8618_flashcfg_state, (obj), TYPE_MV88W8618_FLASHCFG)
+typedef struct mv88w8618_flashcfg_state mv88w8618_flashcfg_state;
+DECLARE_INSTANCE_CHECKER(mv88w8618_flashcfg_state, MV88W8618_FLASHCFG,
+                         TYPE_MV88W8618_FLASHCFG)
 
-typedef struct mv88w8618_flashcfg_state {
+struct mv88w8618_flashcfg_state {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
 
     MemoryRegion iomem;
     uint32_t cfgr0;
-} mv88w8618_flashcfg_state;
+};
 
 static uint64_t mv88w8618_flashcfg_read(void *opaque,
                                         hwaddr offset,
@@ -1090,14 +1096,15 @@ static const TypeInfo mv88w8618_flashcfg_info = {
 
 #define MP_BOARD_REVISION       0x31
 
-typedef struct {
+struct MusicPalMiscState {
     SysBusDevice parent_obj;
     MemoryRegion iomem;
-} MusicPalMiscState;
+};
+typedef struct MusicPalMiscState MusicPalMiscState;
 
 #define TYPE_MUSICPAL_MISC "musicpal-misc"
-#define MUSICPAL_MISC(obj) \
-     OBJECT_CHECK(MusicPalMiscState, (obj), TYPE_MUSICPAL_MISC)
+DECLARE_INSTANCE_CHECKER(MusicPalMiscState, MUSICPAL_MISC,
+                         TYPE_MUSICPAL_MISC)
 
 static uint64_t musicpal_misc_read(void *opaque, hwaddr offset,
                                    unsigned size)
@@ -1202,10 +1209,11 @@ static void mv88w8618_wlan_realize(DeviceState *dev, Error **errp)
 #define MP_OE_LCD_BRIGHTNESS    0x0007
 
 #define TYPE_MUSICPAL_GPIO "musicpal_gpio"
-#define MUSICPAL_GPIO(obj) \
-    OBJECT_CHECK(musicpal_gpio_state, (obj), TYPE_MUSICPAL_GPIO)
+typedef struct musicpal_gpio_state musicpal_gpio_state;
+DECLARE_INSTANCE_CHECKER(musicpal_gpio_state, MUSICPAL_GPIO,
+                         TYPE_MUSICPAL_GPIO)
 
-typedef struct musicpal_gpio_state {
+struct musicpal_gpio_state {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -1219,7 +1227,7 @@ typedef struct musicpal_gpio_state {
     uint32_t isr;
     qemu_irq irq;
     qemu_irq out[5]; /* 3 brightness out + 2 lcd (data and clock ) */
-} musicpal_gpio_state;
+};
 
 static void musicpal_gpio_brightness_update(musicpal_gpio_state *s) {
     int i;
@@ -1452,10 +1460,11 @@ static const TypeInfo musicpal_gpio_info = {
 #define MP_KEY_BTN_NAVIGATION  (1 << 7)
 
 #define TYPE_MUSICPAL_KEY "musicpal_key"
-#define MUSICPAL_KEY(obj) \
-    OBJECT_CHECK(musicpal_key_state, (obj), TYPE_MUSICPAL_KEY)
+typedef struct musicpal_key_state musicpal_key_state;
+DECLARE_INSTANCE_CHECKER(musicpal_key_state, MUSICPAL_KEY,
+                         TYPE_MUSICPAL_KEY)
 
-typedef struct musicpal_key_state {
+struct musicpal_key_state {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -1464,7 +1473,7 @@ typedef struct musicpal_key_state {
     uint32_t kbd_extended;
     uint32_t pressed_keys;
     qemu_irq out[8];
-} musicpal_key_state;
+};
 
 static void musicpal_key_event(void *opaque, int keycode)
 {
diff --git a/hw/arm/palm.c b/hw/arm/palm.c
index e7bc9ea4c6..abc6495489 100644
--- a/hw/arm/palm.c
+++ b/hw/arm/palm.c
@@ -32,6 +32,7 @@
 #include "exec/address-spaces.h"
 #include "cpu.h"
 #include "qemu/cutils.h"
+#include "qom/object.h"
 
 static uint64_t static_read(void *opaque, hwaddr offset, unsigned size)
 {
@@ -132,12 +133,13 @@ static void palmte_button_event(void *opaque, int keycode)
  */
 
 #define TYPE_PALM_MISC_GPIO "palm-misc-gpio"
-#define PALM_MISC_GPIO(obj) \
-    OBJECT_CHECK(PalmMiscGPIOState, (obj), TYPE_PALM_MISC_GPIO)
+typedef struct PalmMiscGPIOState PalmMiscGPIOState;
+DECLARE_INSTANCE_CHECKER(PalmMiscGPIOState, PALM_MISC_GPIO,
+                         TYPE_PALM_MISC_GPIO)
 
-typedef struct PalmMiscGPIOState {
+struct PalmMiscGPIOState {
     SysBusDevice parent_obj;
-} PalmMiscGPIOState;
+};
 
 static void palmte_onoff_gpios(void *opaque, int line, int level)
 {
diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index 76975d17a4..701baa84ca 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -28,6 +28,7 @@
 #include "sysemu/qtest.h"
 #include "qemu/cutils.h"
 #include "qemu/log.h"
+#include "qom/object.h"
 
 static struct {
     hwaddr io_base;
@@ -469,11 +470,12 @@ static const VMStateDescription vmstate_pxa2xx_mm = {
 };
 
 #define TYPE_PXA2XX_SSP "pxa2xx-ssp"
-#define PXA2XX_SSP(obj) \
-    OBJECT_CHECK(PXA2xxSSPState, (obj), TYPE_PXA2XX_SSP)
+typedef struct PXA2xxSSPState PXA2xxSSPState;
+DECLARE_INSTANCE_CHECKER(PXA2xxSSPState, PXA2XX_SSP,
+                         TYPE_PXA2XX_SSP)
 
 /* Synchronous Serial Ports */
-typedef struct {
+struct PXA2xxSSPState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -495,7 +497,7 @@ typedef struct {
     uint32_t rx_fifo[16];
     uint32_t rx_level;
     uint32_t rx_start;
-} PXA2xxSSPState;
+};
 
 static bool pxa2xx_ssp_vmstate_validate(void *opaque, int version_id)
 {
@@ -809,10 +811,11 @@ static void pxa2xx_ssp_init(Object *obj)
 #define PIAR		0x38	/* RTC Periodic Interrupt Alarm register */
 
 #define TYPE_PXA2XX_RTC "pxa2xx_rtc"
-#define PXA2XX_RTC(obj) \
-    OBJECT_CHECK(PXA2xxRTCState, (obj), TYPE_PXA2XX_RTC)
+typedef struct PXA2xxRTCState PXA2xxRTCState;
+DECLARE_INSTANCE_CHECKER(PXA2xxRTCState, PXA2XX_RTC,
+                         TYPE_PXA2XX_RTC)
 
-typedef struct {
+struct PXA2xxRTCState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -843,7 +846,7 @@ typedef struct {
     QEMUTimer *rtc_swal2;
     QEMUTimer *rtc_pi;
     qemu_irq rtc_irq;
-} PXA2xxRTCState;
+};
 
 static inline void pxa2xx_rtc_int_update(PXA2xxRTCState *s)
 {
@@ -1242,14 +1245,15 @@ static const TypeInfo pxa2xx_rtc_sysbus_info = {
 /* I2C Interface */
 
 #define TYPE_PXA2XX_I2C_SLAVE "pxa2xx-i2c-slave"
-#define PXA2XX_I2C_SLAVE(obj) \
-    OBJECT_CHECK(PXA2xxI2CSlaveState, (obj), TYPE_PXA2XX_I2C_SLAVE)
+typedef struct PXA2xxI2CSlaveState PXA2xxI2CSlaveState;
+DECLARE_INSTANCE_CHECKER(PXA2xxI2CSlaveState, PXA2XX_I2C_SLAVE,
+                         TYPE_PXA2XX_I2C_SLAVE)
 
-typedef struct PXA2xxI2CSlaveState {
+struct PXA2xxI2CSlaveState {
     I2CSlave parent_obj;
 
     PXA2xxI2CState *host;
-} PXA2xxI2CSlaveState;
+};
 
 struct PXA2xxI2CState {
     /*< private >*/
diff --git a/hw/arm/pxa2xx_gpio.c b/hw/arm/pxa2xx_gpio.c
index d6d0d0b08e..16bbe4fb70 100644
--- a/hw/arm/pxa2xx_gpio.c
+++ b/hw/arm/pxa2xx_gpio.c
@@ -17,14 +17,15 @@
 #include "qapi/error.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define PXA2XX_GPIO_BANKS	4
 
 #define TYPE_PXA2XX_GPIO "pxa2xx-gpio"
-#define PXA2XX_GPIO(obj) \
-    OBJECT_CHECK(PXA2xxGPIOInfo, (obj), TYPE_PXA2XX_GPIO)
-
 typedef struct PXA2xxGPIOInfo PXA2xxGPIOInfo;
+DECLARE_INSTANCE_CHECKER(PXA2xxGPIOInfo, PXA2XX_GPIO,
+                         TYPE_PXA2XX_GPIO)
+
 struct PXA2xxGPIOInfo {
     /*< private >*/
     SysBusDevice parent_obj;
diff --git a/hw/arm/pxa2xx_pic.c b/hw/arm/pxa2xx_pic.c
index ceee6aa48d..cb52a9dff3 100644
--- a/hw/arm/pxa2xx_pic.c
+++ b/hw/arm/pxa2xx_pic.c
@@ -16,6 +16,7 @@
 #include "hw/arm/pxa.h"
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #define ICIP	0x00	/* Interrupt Controller IRQ Pending register */
 #define ICMR	0x04	/* Interrupt Controller Mask register */
@@ -37,10 +38,11 @@
 #define PXA2XX_PIC_SRCS	40
 
 #define TYPE_PXA2XX_PIC "pxa2xx_pic"
-#define PXA2XX_PIC(obj) \
-    OBJECT_CHECK(PXA2xxPICState, (obj), TYPE_PXA2XX_PIC)
+typedef struct PXA2xxPICState PXA2xxPICState;
+DECLARE_INSTANCE_CHECKER(PXA2xxPICState, PXA2XX_PIC,
+                         TYPE_PXA2XX_PIC)
 
-typedef struct {
+struct PXA2xxPICState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -52,7 +54,7 @@ typedef struct {
     uint32_t is_fiq[2];
     uint32_t int_idle;
     uint32_t priority[PXA2XX_PIC_SRCS];
-} PXA2xxPICState;
+};
 
 static void pxa2xx_pic_update(void *opaque)
 {
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
index b2d6c9688f..d2f674587d 100644
--- a/hw/arm/raspi.c
+++ b/hw/arm/raspi.c
@@ -24,6 +24,7 @@
 #include "hw/loader.h"
 #include "hw/arm/boot.h"
 #include "sysemu/sysemu.h"
+#include "qom/object.h"
 
 #define SMPBOOT_ADDR    0x300 /* this should leave enough space for ATAGS */
 #define MVBAR_ADDR      0x400 /* secure vectors */
@@ -35,28 +36,26 @@
 /* Registered machine type (matches RPi Foundation bootloader and U-Boot) */
 #define MACH_TYPE_BCM2708   3138
 
-typedef struct RaspiMachineState {
+struct RaspiMachineState {
     /*< private >*/
     MachineState parent_obj;
     /*< public >*/
     BCM283XState soc;
-} RaspiMachineState;
+};
+typedef struct RaspiMachineState RaspiMachineState;
 
-typedef struct RaspiMachineClass {
+struct RaspiMachineClass {
     /*< private >*/
     MachineClass parent_obj;
     /*< public >*/
     uint32_t board_rev;
-} RaspiMachineClass;
+};
+typedef struct RaspiMachineClass RaspiMachineClass;
 
 #define TYPE_RASPI_MACHINE       MACHINE_TYPE_NAME("raspi-common")
-#define RASPI_MACHINE(obj) \
-    OBJECT_CHECK(RaspiMachineState, (obj), TYPE_RASPI_MACHINE)
+DECLARE_OBJ_CHECKERS(RaspiMachineState, RaspiMachineClass,
+                     RASPI_MACHINE, TYPE_RASPI_MACHINE)
 
-#define RASPI_MACHINE_CLASS(klass) \
-     OBJECT_CLASS_CHECK(RaspiMachineClass, (klass), TYPE_RASPI_MACHINE)
-#define RASPI_MACHINE_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(RaspiMachineClass, (obj), TYPE_RASPI_MACHINE)
 
 /*
  * Board revision codes:
diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
index 47b5286d46..ac68b4640d 100644
--- a/hw/arm/sbsa-ref.c
+++ b/hw/arm/sbsa-ref.c
@@ -41,6 +41,7 @@
 #include "hw/usb.h"
 #include "hw/char/pl011.h"
 #include "net/net.h"
+#include "qom/object.h"
 
 #define RAMLIMIT_GB 8192
 #define RAMLIMIT_BYTES (RAMLIMIT_GB * GiB)
@@ -84,7 +85,7 @@ typedef struct MemMapEntry {
     hwaddr size;
 } MemMapEntry;
 
-typedef struct {
+struct SBSAMachineState {
     MachineState parent;
     struct arm_boot_info bootinfo;
     int smp_cpus;
@@ -93,11 +94,12 @@ typedef struct {
     int psci_conduit;
     DeviceState *gic;
     PFlashCFI01 *flash[2];
-} SBSAMachineState;
+};
+typedef struct SBSAMachineState SBSAMachineState;
 
 #define TYPE_SBSA_MACHINE   MACHINE_TYPE_NAME("sbsa-ref")
-#define SBSA_MACHINE(obj) \
-    OBJECT_CHECK(SBSAMachineState, (obj), TYPE_SBSA_MACHINE)
+DECLARE_INSTANCE_CHECKER(SBSAMachineState, SBSA_MACHINE,
+                         TYPE_SBSA_MACHINE)
 
 static const MemMapEntry sbsa_ref_memmap[] = {
     /* 512M boot ROM */
diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c
index 7ac8254aa6..a7ad667f06 100644
--- a/hw/arm/spitz.c
+++ b/hw/arm/spitz.c
@@ -34,16 +34,18 @@
 #include "migration/vmstate.h"
 #include "exec/address-spaces.h"
 #include "cpu.h"
+#include "qom/object.h"
 
 enum spitz_model_e { spitz, akita, borzoi, terrier };
 
-typedef struct {
+struct SpitzMachineClass {
     MachineClass parent;
     enum spitz_model_e model;
     int arm_id;
-} SpitzMachineClass;
+};
+typedef struct SpitzMachineClass SpitzMachineClass;
 
-typedef struct {
+struct SpitzMachineState {
     MachineState parent;
     PXA2xxState *mpu;
     DeviceState *mux;
@@ -53,15 +55,12 @@ typedef struct {
     DeviceState *scp0;
     DeviceState *scp1;
     DeviceState *misc_gpio;
-} SpitzMachineState;
+};
+typedef struct SpitzMachineState SpitzMachineState;
 
 #define TYPE_SPITZ_MACHINE "spitz-common"
-#define SPITZ_MACHINE(obj) \
-    OBJECT_CHECK(SpitzMachineState, obj, TYPE_SPITZ_MACHINE)
-#define SPITZ_MACHINE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(SpitzMachineClass, obj, TYPE_SPITZ_MACHINE)
-#define SPITZ_MACHINE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(SpitzMachineClass, klass, TYPE_SPITZ_MACHINE)
+DECLARE_OBJ_CHECKERS(SpitzMachineState, SpitzMachineClass,
+                     SPITZ_MACHINE, TYPE_SPITZ_MACHINE)
 
 #define zaurus_printf(format, ...)                              \
     fprintf(stderr, "%s: " format, __func__, ##__VA_ARGS__)
@@ -85,9 +84,11 @@ typedef struct {
 #define FLASHCTL_NCE            (FLASHCTL_CE0 | FLASHCTL_CE1)
 
 #define TYPE_SL_NAND "sl-nand"
-#define SL_NAND(obj) OBJECT_CHECK(SLNANDState, (obj), TYPE_SL_NAND)
+typedef struct SLNANDState SLNANDState;
+DECLARE_INSTANCE_CHECKER(SLNANDState, SL_NAND,
+                         TYPE_SL_NAND)
 
-typedef struct {
+struct SLNANDState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -96,7 +97,7 @@ typedef struct {
     uint8_t manf_id;
     uint8_t chip_id;
     ECCState ecc;
-} SLNANDState;
+};
 
 static uint64_t sl_read(void *opaque, hwaddr addr, unsigned size)
 {
@@ -261,10 +262,11 @@ static const int spitz_gpiomap[5] = {
 };
 
 #define TYPE_SPITZ_KEYBOARD "spitz-keyboard"
-#define SPITZ_KEYBOARD(obj) \
-    OBJECT_CHECK(SpitzKeyboardState, (obj), TYPE_SPITZ_KEYBOARD)
+typedef struct SpitzKeyboardState SpitzKeyboardState;
+DECLARE_INSTANCE_CHECKER(SpitzKeyboardState, SPITZ_KEYBOARD,
+                         TYPE_SPITZ_KEYBOARD)
 
-typedef struct {
+struct SpitzKeyboardState {
     SysBusDevice parent_obj;
 
     qemu_irq sense[SPITZ_KEY_SENSE_NUM];
@@ -280,7 +282,7 @@ typedef struct {
     uint8_t fifo[16];
     int fifopos, fifolen;
     QEMUTimer *kbdtimer;
-} SpitzKeyboardState;
+};
 
 static void spitz_keyboard_sense_update(SpitzKeyboardState *s)
 {
@@ -580,13 +582,15 @@ static void spitz_keyboard_realize(DeviceState *dev, Error **errp)
 #define LCDTG_POLCTRL   0x07
 
 #define TYPE_SPITZ_LCDTG "spitz-lcdtg"
-#define SPITZ_LCDTG(obj) OBJECT_CHECK(SpitzLCDTG, (obj), TYPE_SPITZ_LCDTG)
+typedef struct SpitzLCDTG SpitzLCDTG;
+DECLARE_INSTANCE_CHECKER(SpitzLCDTG, SPITZ_LCDTG,
+                         TYPE_SPITZ_LCDTG)
 
-typedef struct {
+struct SpitzLCDTG {
     SSISlave ssidev;
     uint32_t bl_intensity;
     uint32_t bl_power;
-} SpitzLCDTG;
+};
 
 static void spitz_bl_update(SpitzLCDTG *s)
 {
@@ -668,14 +672,16 @@ static void spitz_lcdtg_realize(SSISlave *ssi, Error **errp)
 #define SPITZ_GPIO_TP_INT       11
 
 #define TYPE_CORGI_SSP "corgi-ssp"
-#define CORGI_SSP(obj) OBJECT_CHECK(CorgiSSPState, (obj), TYPE_CORGI_SSP)
+typedef struct CorgiSSPState CorgiSSPState;
+DECLARE_INSTANCE_CHECKER(CorgiSSPState, CORGI_SSP,
+                         TYPE_CORGI_SSP)
 
 /* "Demux" the signal based on current chipselect */
-typedef struct {
+struct CorgiSSPState {
     SSISlave ssidev;
     SSIBus *bus[3];
     uint32_t enable[3];
-} CorgiSSPState;
+};
 
 static uint32_t corgi_ssp_transfer(SSISlave *dev, uint32_t value)
 {
@@ -819,14 +825,15 @@ static void spitz_akita_i2c_setup(PXA2xxState *cpu)
  *  + named GPIO output "adc-temp": the ADC value, to be wired up to the max111x
  */
 #define TYPE_SPITZ_MISC_GPIO "spitz-misc-gpio"
-#define SPITZ_MISC_GPIO(obj) \
-    OBJECT_CHECK(SpitzMiscGPIOState, (obj), TYPE_SPITZ_MISC_GPIO)
+typedef struct SpitzMiscGPIOState SpitzMiscGPIOState;
+DECLARE_INSTANCE_CHECKER(SpitzMiscGPIOState, SPITZ_MISC_GPIO,
+                         TYPE_SPITZ_MISC_GPIO)
 
-typedef struct SpitzMiscGPIOState {
+struct SpitzMiscGPIOState {
     SysBusDevice parent_obj;
 
     qemu_irq adc_value;
-} SpitzMiscGPIOState;
+};
 
 static void spitz_misc_charging(void *opaque, int n, int level)
 {
diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
index 5f9d080180..d6fc4a4681 100644
--- a/hw/arm/stellaris.c
+++ b/hw/arm/stellaris.c
@@ -27,6 +27,7 @@
 #include "migration/vmstate.h"
 #include "hw/misc/unimp.h"
 #include "cpu.h"
+#include "qom/object.h"
 
 #define GPIO_A 0
 #define GPIO_B 1
@@ -57,10 +58,11 @@ typedef const struct {
 /* General purpose timer module.  */
 
 #define TYPE_STELLARIS_GPTM "stellaris-gptm"
-#define STELLARIS_GPTM(obj) \
-    OBJECT_CHECK(gptm_state, (obj), TYPE_STELLARIS_GPTM)
+typedef struct gptm_state gptm_state;
+DECLARE_INSTANCE_CHECKER(gptm_state, STELLARIS_GPTM,
+                         TYPE_STELLARIS_GPTM)
 
-typedef struct gptm_state {
+struct gptm_state {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -80,7 +82,7 @@ typedef struct gptm_state {
     /* The timers have an alternate output used to trigger the ADC.  */
     qemu_irq trigger;
     qemu_irq irq;
-} gptm_state;
+};
 
 static void gptm_update_irq(gptm_state *s)
 {
@@ -719,10 +721,11 @@ static int stellaris_sys_init(uint32_t base, qemu_irq irq,
 /* I2C controller.  */
 
 #define TYPE_STELLARIS_I2C "stellaris-i2c"
-#define STELLARIS_I2C(obj) \
-    OBJECT_CHECK(stellaris_i2c_state, (obj), TYPE_STELLARIS_I2C)
+typedef struct stellaris_i2c_state stellaris_i2c_state;
+DECLARE_INSTANCE_CHECKER(stellaris_i2c_state, STELLARIS_I2C,
+                         TYPE_STELLARIS_I2C)
 
-typedef struct {
+struct stellaris_i2c_state {
     SysBusDevice parent_obj;
 
     I2CBus *bus;
@@ -735,7 +738,7 @@ typedef struct {
     uint32_t mimr;
     uint32_t mris;
     uint32_t mcr;
-} stellaris_i2c_state;
+};
 
 #define STELLARIS_I2C_MCS_BUSY    0x01
 #define STELLARIS_I2C_MCS_ERROR   0x02
@@ -932,10 +935,11 @@ static void stellaris_i2c_init(Object *obj)
 #define STELLARIS_ADC_FIFO_FULL     0x1000
 
 #define TYPE_STELLARIS_ADC "stellaris-adc"
-#define STELLARIS_ADC(obj) \
-    OBJECT_CHECK(stellaris_adc_state, (obj), TYPE_STELLARIS_ADC)
+typedef struct StellarisADCState stellaris_adc_state;
+DECLARE_INSTANCE_CHECKER(stellaris_adc_state, STELLARIS_ADC,
+                         TYPE_STELLARIS_ADC)
 
-typedef struct StellarisADCState {
+struct StellarisADCState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -955,7 +959,7 @@ typedef struct StellarisADCState {
     uint32_t ssctl[4];
     uint32_t noise;
     qemu_irq irq[4];
-} stellaris_adc_state;
+};
 
 static uint32_t stellaris_adc_fifo_read(stellaris_adc_state *s, int n)
 {
diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c
index 2639b9ae55..0fe829b868 100644
--- a/hw/arm/strongarm.c
+++ b/hw/arm/strongarm.c
@@ -45,6 +45,7 @@
 #include "qapi/error.h"
 #include "qemu/cutils.h"
 #include "qemu/log.h"
+#include "qom/object.h"
 
 //#define DEBUG
 
@@ -84,10 +85,11 @@ static struct {
 /* Interrupt Controller */
 
 #define TYPE_STRONGARM_PIC "strongarm_pic"
-#define STRONGARM_PIC(obj) \
-    OBJECT_CHECK(StrongARMPICState, (obj), TYPE_STRONGARM_PIC)
+typedef struct StrongARMPICState StrongARMPICState;
+DECLARE_INSTANCE_CHECKER(StrongARMPICState, STRONGARM_PIC,
+                         TYPE_STRONGARM_PIC)
 
-typedef struct StrongARMPICState {
+struct StrongARMPICState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -98,7 +100,7 @@ typedef struct StrongARMPICState {
     uint32_t enabled;
     uint32_t is_fiq;
     uint32_t int_idle;
-} StrongARMPICState;
+};
 
 #define ICIP    0x00
 #define ICMR    0x04
@@ -252,10 +254,11 @@ static const TypeInfo strongarm_pic_info = {
  * f = 32 768 / (RTTR_trim + 1) */
 
 #define TYPE_STRONGARM_RTC "strongarm-rtc"
-#define STRONGARM_RTC(obj) \
-    OBJECT_CHECK(StrongARMRTCState, (obj), TYPE_STRONGARM_RTC)
+typedef struct StrongARMRTCState StrongARMRTCState;
+DECLARE_INSTANCE_CHECKER(StrongARMRTCState, STRONGARM_RTC,
+                         TYPE_STRONGARM_RTC)
 
-typedef struct StrongARMRTCState {
+struct StrongARMRTCState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -268,7 +271,7 @@ typedef struct StrongARMRTCState {
     QEMUTimer *rtc_hz;
     qemu_irq rtc_irq;
     qemu_irq rtc_hz_irq;
-} StrongARMRTCState;
+};
 
 static inline void strongarm_rtc_int_update(StrongARMRTCState *s)
 {
@@ -478,10 +481,10 @@ static const TypeInfo strongarm_rtc_sysbus_info = {
 #define GAFR 0x1c
 
 #define TYPE_STRONGARM_GPIO "strongarm-gpio"
-#define STRONGARM_GPIO(obj) \
-    OBJECT_CHECK(StrongARMGPIOInfo, (obj), TYPE_STRONGARM_GPIO)
-
 typedef struct StrongARMGPIOInfo StrongARMGPIOInfo;
+DECLARE_INSTANCE_CHECKER(StrongARMGPIOInfo, STRONGARM_GPIO,
+                         TYPE_STRONGARM_GPIO)
+
 struct StrongARMGPIOInfo {
     SysBusDevice busdev;
     MemoryRegion iomem;
@@ -717,10 +720,10 @@ static const TypeInfo strongarm_gpio_info = {
 #define PPFR 0x10
 
 #define TYPE_STRONGARM_PPC "strongarm-ppc"
-#define STRONGARM_PPC(obj) \
-    OBJECT_CHECK(StrongARMPPCInfo, (obj), TYPE_STRONGARM_PPC)
-
 typedef struct StrongARMPPCInfo StrongARMPPCInfo;
+DECLARE_INSTANCE_CHECKER(StrongARMPPCInfo, STRONGARM_PPC,
+                         TYPE_STRONGARM_PPC)
+
 struct StrongARMPPCInfo {
     SysBusDevice parent_obj;
 
@@ -918,10 +921,11 @@ static const TypeInfo strongarm_ppc_info = {
 #define RX_FIFO_ROR (1 << 10)
 
 #define TYPE_STRONGARM_UART "strongarm-uart"
-#define STRONGARM_UART(obj) \
-    OBJECT_CHECK(StrongARMUARTState, (obj), TYPE_STRONGARM_UART)
+typedef struct StrongARMUARTState StrongARMUARTState;
+DECLARE_INSTANCE_CHECKER(StrongARMUARTState, STRONGARM_UART,
+                         TYPE_STRONGARM_UART)
 
-typedef struct StrongARMUARTState {
+struct StrongARMUARTState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -945,7 +949,7 @@ typedef struct StrongARMUARTState {
     bool wait_break_end;
     QEMUTimer *rx_timeout_timer;
     QEMUTimer *tx_timer;
-} StrongARMUARTState;
+};
 
 static void strongarm_uart_update_status(StrongARMUARTState *s)
 {
@@ -1349,10 +1353,11 @@ static const TypeInfo strongarm_uart_info = {
 /* Synchronous Serial Ports */
 
 #define TYPE_STRONGARM_SSP "strongarm-ssp"
-#define STRONGARM_SSP(obj) \
-    OBJECT_CHECK(StrongARMSSPState, (obj), TYPE_STRONGARM_SSP)
+typedef struct StrongARMSSPState StrongARMSSPState;
+DECLARE_INSTANCE_CHECKER(StrongARMSSPState, STRONGARM_SSP,
+                         TYPE_STRONGARM_SSP)
 
-typedef struct StrongARMSSPState {
+struct StrongARMSSPState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -1365,7 +1370,7 @@ typedef struct StrongARMSSPState {
     uint16_t rx_fifo[8];
     uint8_t rx_level;
     uint8_t rx_start;
-} StrongARMSSPState;
+};
 
 #define SSCR0 0x60 /* SSP Control register 0 */
 #define SSCR1 0x64 /* SSP Control register 1 */
diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
index 90eef1f14d..2ef6c7b288 100644
--- a/hw/arm/tosa.c
+++ b/hw/arm/tosa.c
@@ -25,6 +25,7 @@
 #include "hw/ssi/ssi.h"
 #include "hw/sysbus.h"
 #include "exec/address-spaces.h"
+#include "qom/object.h"
 
 #define TOSA_RAM 0x04000000
 #define TOSA_ROM 0x00800000
@@ -74,12 +75,13 @@ static void tosa_microdrive_attach(PXA2xxState *cpu)
  */
 
 #define TYPE_TOSA_MISC_GPIO "tosa-misc-gpio"
-#define TOSA_MISC_GPIO(obj) \
-    OBJECT_CHECK(TosaMiscGPIOState, (obj), TYPE_TOSA_MISC_GPIO)
+typedef struct TosaMiscGPIOState TosaMiscGPIOState;
+DECLARE_INSTANCE_CHECKER(TosaMiscGPIOState, TOSA_MISC_GPIO,
+                         TYPE_TOSA_MISC_GPIO)
 
-typedef struct TosaMiscGPIOState {
+struct TosaMiscGPIOState {
     SysBusDevice parent_obj;
-} TosaMiscGPIOState;
+};
 
 static void tosa_gpio_leds(void *opaque, int line, int level)
 {
@@ -170,14 +172,16 @@ static void tosa_ssp_realize(SSISlave *dev, Error **errp)
 }
 
 #define TYPE_TOSA_DAC "tosa_dac"
-#define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
+typedef struct TosaDACState TosaDACState;
+DECLARE_INSTANCE_CHECKER(TosaDACState, TOSA_DAC,
+                         TYPE_TOSA_DAC)
 
-typedef struct {
+struct TosaDACState {
     I2CSlave parent_obj;
 
     int len;
     char buf[3];
-} TosaDACState;
+};
 
 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
 {
diff --git a/hw/arm/versatilepb.c b/hw/arm/versatilepb.c
index 9127579984..2ba69f24b7 100644
--- a/hw/arm/versatilepb.c
+++ b/hw/arm/versatilepb.c
@@ -26,6 +26,7 @@
 #include "qemu/error-report.h"
 #include "hw/char/pl011.h"
 #include "hw/sd/sd.h"
+#include "qom/object.h"
 
 #define VERSATILE_FLASH_ADDR 0x34000000
 #define VERSATILE_FLASH_SIZE (64 * 1024 * 1024)
@@ -34,10 +35,11 @@
 /* Primary interrupt controller.  */
 
 #define TYPE_VERSATILE_PB_SIC "versatilepb_sic"
-#define VERSATILE_PB_SIC(obj) \
-    OBJECT_CHECK(vpb_sic_state, (obj), TYPE_VERSATILE_PB_SIC)
+typedef struct vpb_sic_state vpb_sic_state;
+DECLARE_INSTANCE_CHECKER(vpb_sic_state, VERSATILE_PB_SIC,
+                         TYPE_VERSATILE_PB_SIC)
 
-typedef struct vpb_sic_state {
+struct vpb_sic_state {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -46,7 +48,7 @@ typedef struct vpb_sic_state {
     uint32_t pic_enable;
     qemu_irq parent[32];
     int irq;
-} vpb_sic_state;
+};
 
 static const VMStateDescription vmstate_vpb_sic = {
     .name = "versatilepb_sic",
diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c
index 95405f5940..01bb4bba1e 100644
--- a/hw/arm/vexpress.c
+++ b/hw/arm/vexpress.c
@@ -44,6 +44,7 @@
 #include "hw/cpu/a15mpcore.h"
 #include "hw/i2c/arm_sbcon_i2c.h"
 #include "hw/sd/sd.h"
+#include "qom/object.h"
 
 #define VEXPRESS_BOARD_ID 0x8e0
 #define VEXPRESS_FLASH_SIZE (64 * 1024 * 1024)
@@ -166,26 +167,24 @@ static hwaddr motherboard_aseries_map[] = {
 
 typedef struct VEDBoardInfo VEDBoardInfo;
 
-typedef struct {
+struct VexpressMachineClass {
     MachineClass parent;
     VEDBoardInfo *daughterboard;
-} VexpressMachineClass;
+};
+typedef struct VexpressMachineClass VexpressMachineClass;
 
-typedef struct {
+struct VexpressMachineState {
     MachineState parent;
     bool secure;
     bool virt;
-} VexpressMachineState;
+};
+typedef struct VexpressMachineState VexpressMachineState;
 
 #define TYPE_VEXPRESS_MACHINE   "vexpress"
 #define TYPE_VEXPRESS_A9_MACHINE   MACHINE_TYPE_NAME("vexpress-a9")
 #define TYPE_VEXPRESS_A15_MACHINE   MACHINE_TYPE_NAME("vexpress-a15")
-#define VEXPRESS_MACHINE(obj) \
-    OBJECT_CHECK(VexpressMachineState, (obj), TYPE_VEXPRESS_MACHINE)
-#define VEXPRESS_MACHINE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(VexpressMachineClass, obj, TYPE_VEXPRESS_MACHINE)
-#define VEXPRESS_MACHINE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(VexpressMachineClass, klass, TYPE_VEXPRESS_MACHINE)
+DECLARE_OBJ_CHECKERS(VexpressMachineState, VexpressMachineClass,
+                     VEXPRESS_MACHINE, TYPE_VEXPRESS_MACHINE)
 
 typedef void DBoardInitFn(const VexpressMachineState *machine,
                           ram_addr_t ram_size,
diff --git a/hw/arm/xilinx_zynq.c b/hw/arm/xilinx_zynq.c
index 969ef0727c..9eb9cea8d4 100644
--- a/hw/arm/xilinx_zynq.c
+++ b/hw/arm/xilinx_zynq.c
@@ -37,10 +37,12 @@
 #include "hw/cpu/a9mpcore.h"
 #include "hw/qdev-clock.h"
 #include "sysemu/reset.h"
+#include "qom/object.h"
 
 #define TYPE_ZYNQ_MACHINE MACHINE_TYPE_NAME("xilinx-zynq-a9")
-#define ZYNQ_MACHINE(obj) \
-    OBJECT_CHECK(ZynqMachineState, (obj), TYPE_ZYNQ_MACHINE)
+typedef struct ZynqMachineState ZynqMachineState;
+DECLARE_INSTANCE_CHECKER(ZynqMachineState, ZYNQ_MACHINE,
+                         TYPE_ZYNQ_MACHINE)
 
 /* board base frequency: 33.333333 MHz */
 #define PS_CLK_FREQUENCY (100 * 1000 * 1000 / 3)
@@ -84,10 +86,10 @@ static const int dma_irqs[8] = {
     0xe3401000 + ARMV7_IMM16(extract32((val), 16, 16)), /* movt r1 ... */ \
     0xe5801000 + (addr)
 
-typedef struct ZynqMachineState {
+struct ZynqMachineState {
     MachineState parent;
     Clock *ps_clk;
-} ZynqMachineState;
+};
 
 static void zynq_write_board_setup(ARMCPU *cpu,
                                    const struct arm_boot_info *info)
diff --git a/hw/arm/xlnx-versal-virt.c b/hw/arm/xlnx-versal-virt.c
index 4b3152ee77..5a01e856fd 100644
--- a/hw/arm/xlnx-versal-virt.c
+++ b/hw/arm/xlnx-versal-virt.c
@@ -22,12 +22,14 @@
 #include "cpu.h"
 #include "hw/qdev-properties.h"
 #include "hw/arm/xlnx-versal.h"
+#include "qom/object.h"
 
 #define TYPE_XLNX_VERSAL_VIRT_MACHINE MACHINE_TYPE_NAME("xlnx-versal-virt")
-#define XLNX_VERSAL_VIRT_MACHINE(obj) \
-    OBJECT_CHECK(VersalVirt, (obj), TYPE_XLNX_VERSAL_VIRT_MACHINE)
+typedef struct VersalVirt VersalVirt;
+DECLARE_INSTANCE_CHECKER(VersalVirt, XLNX_VERSAL_VIRT_MACHINE,
+                         TYPE_XLNX_VERSAL_VIRT_MACHINE)
 
-typedef struct VersalVirt {
+struct VersalVirt {
     MachineState parent_obj;
 
     Versal soc;
@@ -45,7 +47,7 @@ typedef struct VersalVirt {
     struct {
         bool secure;
     } cfg;
-} VersalVirt;
+};
 
 static void fdt_create(VersalVirt *s)
 {
diff --git a/hw/arm/xlnx-zcu102.c b/hw/arm/xlnx-zcu102.c
index 672d9d4bd1..19d5a4d4e0 100644
--- a/hw/arm/xlnx-zcu102.c
+++ b/hw/arm/xlnx-zcu102.c
@@ -24,8 +24,9 @@
 #include "qemu/log.h"
 #include "sysemu/qtest.h"
 #include "sysemu/device_tree.h"
+#include "qom/object.h"
 
-typedef struct XlnxZCU102 {
+struct XlnxZCU102 {
     MachineState parent_obj;
 
     XlnxZynqMPState soc;
@@ -34,11 +35,12 @@ typedef struct XlnxZCU102 {
     bool virt;
 
     struct arm_boot_info binfo;
-} XlnxZCU102;
+};
+typedef struct XlnxZCU102 XlnxZCU102;
 
 #define TYPE_ZCU102_MACHINE   MACHINE_TYPE_NAME("xlnx-zcu102")
-#define ZCU102_MACHINE(obj) \
-    OBJECT_CHECK(XlnxZCU102, (obj), TYPE_ZCU102_MACHINE)
+DECLARE_INSTANCE_CHECKER(XlnxZCU102, ZCU102_MACHINE,
+                         TYPE_ZCU102_MACHINE)
 
 
 static bool zcu102_get_secure(Object *obj, Error **errp)
diff --git a/hw/arm/z2.c b/hw/arm/z2.c
index 9a9bbc653b..72ecb6df29 100644
--- a/hw/arm/z2.c
+++ b/hw/arm/z2.c
@@ -26,6 +26,7 @@
 #include "exec/address-spaces.h"
 #include "sysemu/qtest.h"
 #include "cpu.h"
+#include "qom/object.h"
 
 #ifdef DEBUG_Z2
 #define DPRINTF(fmt, ...) \
@@ -102,17 +103,19 @@ static struct arm_boot_info z2_binfo = {
 #define Z2_GPIO_KEY_ON      1
 #define Z2_GPIO_LCD_CS      88
 
-typedef struct {
+struct ZipitLCD {
     SSISlave ssidev;
     int32_t selected;
     int32_t enabled;
     uint8_t buf[3];
     uint32_t cur_reg;
     int pos;
-} ZipitLCD;
+};
+typedef struct ZipitLCD ZipitLCD;
 
 #define TYPE_ZIPIT_LCD "zipit-lcd"
-#define ZIPIT_LCD(obj) OBJECT_CHECK(ZipitLCD, (obj), TYPE_ZIPIT_LCD)
+DECLARE_INSTANCE_CHECKER(ZipitLCD, ZIPIT_LCD,
+                         TYPE_ZIPIT_LCD)
 
 static uint32_t zipit_lcd_transfer(SSISlave *dev, uint32_t value)
 {
@@ -195,14 +198,16 @@ static const TypeInfo zipit_lcd_info = {
 };
 
 #define TYPE_AER915 "aer915"
-#define AER915(obj) OBJECT_CHECK(AER915State, (obj), TYPE_AER915)
+typedef struct AER915State AER915State;
+DECLARE_INSTANCE_CHECKER(AER915State, AER915,
+                         TYPE_AER915)
 
-typedef struct AER915State {
+struct AER915State {
     I2CSlave parent_obj;
 
     int len;
     uint8_t buf[3];
-} AER915State;
+};
 
 static int aer915_send(I2CSlave *i2c, uint8_t data)
 {
diff --git a/hw/audio/ac97.c b/hw/audio/ac97.c
index 38522cf0ba..eb8a7f032d 100644
--- a/hw/audio/ac97.c
+++ b/hw/audio/ac97.c
@@ -25,6 +25,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "sysemu/dma.h"
+#include "qom/object.h"
 
 enum {
     AC97_Reset                     = 0x00,
@@ -126,8 +127,9 @@ enum {
 #define MUTE_SHIFT 15
 
 #define TYPE_AC97 "AC97"
-#define AC97(obj) \
-    OBJECT_CHECK(AC97LinkState, (obj), TYPE_AC97)
+typedef struct AC97LinkState AC97LinkState;
+DECLARE_INSTANCE_CHECKER(AC97LinkState, AC97,
+                         TYPE_AC97)
 
 #define REC_MASK 7
 enum {
@@ -158,7 +160,7 @@ typedef struct AC97BusMasterRegs {
     BD bd;
 } AC97BusMasterRegs;
 
-typedef struct AC97LinkState {
+struct AC97LinkState {
     PCIDevice dev;
     QEMUSoundCard card;
     uint32_t glob_cnt;
@@ -175,7 +177,7 @@ typedef struct AC97LinkState {
     int bup_flag;
     MemoryRegion io_nam;
     MemoryRegion io_nabm;
-} AC97LinkState;
+};
 
 enum {
     BUP_SET = 1,
diff --git a/hw/audio/adlib.c b/hw/audio/adlib.c
index 65dff5b6fc..870116e324 100644
--- a/hw/audio/adlib.c
+++ b/hw/audio/adlib.c
@@ -29,6 +29,7 @@
 #include "audio/audio.h"
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 //#define DEBUG
 
@@ -51,9 +52,11 @@
 #define SHIFT 1
 
 #define TYPE_ADLIB "adlib"
-#define ADLIB(obj) OBJECT_CHECK(AdlibState, (obj), TYPE_ADLIB)
+typedef struct AdlibState AdlibState;
+DECLARE_INSTANCE_CHECKER(AdlibState, ADLIB,
+                         TYPE_ADLIB)
 
-typedef struct {
+struct AdlibState {
     ISADevice parent_obj;
 
     QEMUSoundCard card;
@@ -73,7 +76,7 @@ typedef struct {
     QEMUAudioTimeStamp ats;
     FM_OPL *opl;
     PortioList port_list;
-} AdlibState;
+};
 
 static void adlib_stop_opl_timer (AdlibState *s, size_t n)
 {
diff --git a/hw/audio/cs4231.c b/hw/audio/cs4231.c
index 11a6328fc2..8e9554ce9b 100644
--- a/hw/audio/cs4231.c
+++ b/hw/audio/cs4231.c
@@ -27,6 +27,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /*
  * In addition to Crystal CS4231 there is a DMA controller on Sparc.
@@ -37,17 +38,18 @@
 #define CS_MAXDREG (CS_DREGS - 1)
 
 #define TYPE_CS4231 "SUNW,CS4231"
-#define CS4231(obj) \
-    OBJECT_CHECK(CSState, (obj), TYPE_CS4231)
+typedef struct CSState CSState;
+DECLARE_INSTANCE_CHECKER(CSState, CS4231,
+                         TYPE_CS4231)
 
-typedef struct CSState {
+struct CSState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     qemu_irq irq;
     uint32_t regs[CS_REGS];
     uint8_t dregs[CS_DREGS];
-} CSState;
+};
 
 #define CS_RAP(s) ((s)->regs[0] & CS_MAXDREG)
 #define CS_VER 0xa0
diff --git a/hw/audio/cs4231a.c b/hw/audio/cs4231a.c
index 59705a8d47..7d60ce6f0e 100644
--- a/hw/audio/cs4231a.c
+++ b/hw/audio/cs4231a.c
@@ -32,6 +32,7 @@
 #include "qemu/module.h"
 #include "qemu/timer.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 /*
   Missing features:
@@ -62,9 +63,11 @@ static struct {
 #define CS_DREGS 32
 
 #define TYPE_CS4231A "cs4231a"
-#define CS4231A(obj) OBJECT_CHECK (CSState, (obj), TYPE_CS4231A)
+typedef struct CSState CSState;
+DECLARE_INSTANCE_CHECKER(CSState, CS4231A,
+                         TYPE_CS4231A)
 
-typedef struct CSState {
+struct CSState {
     ISADevice dev;
     QEMUSoundCard card;
     MemoryRegion ioports;
@@ -82,7 +85,7 @@ typedef struct CSState {
     int aci_counter;
     SWVoiceOut *voice;
     int16_t *tab;
-} CSState;
+};
 
 #define MODE2 (1 << 6)
 #define MCE (1 << 6)
diff --git a/hw/audio/es1370.c b/hw/audio/es1370.c
index 4255463a49..a824f8949e 100644
--- a/hw/audio/es1370.c
+++ b/hw/audio/es1370.c
@@ -33,6 +33,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "sysemu/dma.h"
+#include "qom/object.h"
 
 /* Missing stuff:
    SCTRL_P[12](END|ST)INC
@@ -263,7 +264,7 @@ struct chan {
     uint32_t frame_cnt;
 };
 
-typedef struct ES1370State {
+struct ES1370State {
     PCIDevice dev;
     QEMUSoundCard card;
     MemoryRegion io;
@@ -276,7 +277,8 @@ typedef struct ES1370State {
     uint32_t mempage;
     uint32_t codec;
     uint32_t sctl;
-} ES1370State;
+};
+typedef struct ES1370State ES1370State;
 
 struct chan_bits {
     uint32_t ctl_en;
@@ -291,8 +293,8 @@ struct chan_bits {
 };
 
 #define TYPE_ES1370 "ES1370"
-#define ES1370(obj) \
-    OBJECT_CHECK(ES1370State, (obj), TYPE_ES1370)
+DECLARE_INSTANCE_CHECKER(ES1370State, ES1370,
+                         TYPE_ES1370)
 
 static void es1370_dac1_calc_freq (ES1370State *s, uint32_t ctl,
                                    uint32_t *old_freq, uint32_t *new_freq);
diff --git a/hw/audio/gus.c b/hw/audio/gus.c
index 7e4a8cadad..307fd48315 100644
--- a/hw/audio/gus.c
+++ b/hw/audio/gus.c
@@ -33,6 +33,7 @@
 #include "migration/vmstate.h"
 #include "gusemu.h"
 #include "gustate.h"
+#include "qom/object.h"
 
 #define dolog(...) AUD_log ("audio", __VA_ARGS__)
 #ifdef DEBUG
@@ -42,9 +43,11 @@
 #endif
 
 #define TYPE_GUS "gus"
-#define GUS(obj) OBJECT_CHECK (GUSState, (obj), TYPE_GUS)
+typedef struct GUSState GUSState;
+DECLARE_INSTANCE_CHECKER(GUSState, GUS,
+                         TYPE_GUS)
 
-typedef struct GUSState {
+struct GUSState {
     ISADevice dev;
     GUSEmuState emu;
     QEMUSoundCard card;
@@ -60,7 +63,7 @@ typedef struct GUSState {
     IsaDma *isa_dma;
     PortioList portio_list1;
     PortioList portio_list2;
-} GUSState;
+};
 
 static uint32_t gus_readb(void *opaque, uint32_t nport)
 {
diff --git a/hw/audio/hda-codec.c b/hw/audio/hda-codec.c
index 2d16448181..77d31b91a4 100644
--- a/hw/audio/hda-codec.c
+++ b/hw/audio/hda-codec.c
@@ -26,6 +26,7 @@
 #include "intel-hda-defs.h"
 #include "audio/audio.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /* -------------------------------------------------------------------------- */
 
@@ -171,7 +172,8 @@ struct HDAAudioStream {
 };
 
 #define TYPE_HDA_AUDIO "hda-audio"
-#define HDA_AUDIO(obj) OBJECT_CHECK(HDAAudioState, (obj), TYPE_HDA_AUDIO)
+DECLARE_INSTANCE_CHECKER(HDAAudioState, HDA_AUDIO,
+                         TYPE_HDA_AUDIO)
 
 struct HDAAudioState {
     HDACodecDevice hda;
diff --git a/hw/audio/intel-hda.c b/hw/audio/intel-hda.c
index f6cea49686..4330213fff 100644
--- a/hw/audio/intel-hda.c
+++ b/hw/audio/intel-hda.c
@@ -32,6 +32,7 @@
 #include "intel-hda-defs.h"
 #include "sysemu/dma.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 /* --------------------------------------------------------------------- */
 /* hda bus                                                               */
@@ -203,8 +204,8 @@ struct IntelHDAState {
 
 #define TYPE_INTEL_HDA_GENERIC "intel-hda-generic"
 
-#define INTEL_HDA(obj) \
-    OBJECT_CHECK(IntelHDAState, (obj), TYPE_INTEL_HDA_GENERIC)
+DECLARE_INSTANCE_CHECKER(IntelHDAState, INTEL_HDA,
+                         TYPE_INTEL_HDA_GENERIC)
 
 struct IntelHDAReg {
     const char *name;      /* register name */
diff --git a/hw/audio/intel-hda.h b/hw/audio/intel-hda.h
index eee6fee5af..f5cce18fa3 100644
--- a/hw/audio/intel-hda.h
+++ b/hw/audio/intel-hda.h
@@ -2,23 +2,20 @@
 #define HW_INTEL_HDA_H
 
 #include "hw/qdev-core.h"
+#include "qom/object.h"
 
 /* --------------------------------------------------------------------- */
 /* hda bus                                                               */
 
 #define TYPE_HDA_CODEC_DEVICE "hda-codec"
-#define HDA_CODEC_DEVICE(obj) \
-     OBJECT_CHECK(HDACodecDevice, (obj), TYPE_HDA_CODEC_DEVICE)
-#define HDA_CODEC_DEVICE_CLASS(klass) \
-     OBJECT_CLASS_CHECK(HDACodecDeviceClass, (klass), TYPE_HDA_CODEC_DEVICE)
-#define HDA_CODEC_DEVICE_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(HDACodecDeviceClass, (obj), TYPE_HDA_CODEC_DEVICE)
+OBJECT_DECLARE_TYPE(HDACodecDevice, HDACodecDeviceClass,
+                    hda_codec_device, HDA_CODEC_DEVICE)
 
 #define TYPE_HDA_BUS "HDA"
-#define HDA_BUS(obj) OBJECT_CHECK(HDACodecBus, (obj), TYPE_HDA_BUS)
-
 typedef struct HDACodecBus HDACodecBus;
-typedef struct HDACodecDevice HDACodecDevice;
+DECLARE_INSTANCE_CHECKER(HDACodecBus, HDA_BUS,
+                         TYPE_HDA_BUS)
+
 
 typedef void (*hda_codec_response_func)(HDACodecDevice *dev,
                                         bool solicited, uint32_t response);
@@ -33,15 +30,14 @@ struct HDACodecBus {
     hda_codec_xfer_func xfer;
 };
 
-typedef struct HDACodecDeviceClass
-{
+struct HDACodecDeviceClass {
     DeviceClass parent_class;
 
     int (*init)(HDACodecDevice *dev);
     void (*exit)(HDACodecDevice *dev);
     void (*command)(HDACodecDevice *dev, uint32_t nid, uint32_t data);
     void (*stream)(HDACodecDevice *dev, uint32_t stnr, bool running, bool output);
-} HDACodecDeviceClass;
+};
 
 struct HDACodecDevice {
     DeviceState         qdev;
diff --git a/hw/audio/marvell_88w8618.c b/hw/audio/marvell_88w8618.c
index 8dfacec693..c8641562cc 100644
--- a/hw/audio/marvell_88w8618.c
+++ b/hw/audio/marvell_88w8618.c
@@ -19,6 +19,7 @@
 #include "audio/audio.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define MP_AUDIO_SIZE           0x00001000
 
@@ -42,10 +43,11 @@
 #define MP_AUDIO_CLOCK_24MHZ    (1 << 9)
 #define MP_AUDIO_MONO           (1 << 14)
 
-#define MV88W8618_AUDIO(obj) \
-    OBJECT_CHECK(mv88w8618_audio_state, (obj), TYPE_MV88W8618_AUDIO)
+typedef struct mv88w8618_audio_state mv88w8618_audio_state;
+DECLARE_INSTANCE_CHECKER(mv88w8618_audio_state, MV88W8618_AUDIO,
+                         TYPE_MV88W8618_AUDIO)
 
-typedef struct mv88w8618_audio_state {
+struct mv88w8618_audio_state {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -60,7 +62,7 @@ typedef struct mv88w8618_audio_state {
     uint32_t last_free;
     uint32_t clock_div;
     void *wm;
-} mv88w8618_audio_state;
+};
 
 static void mv88w8618_audio_callback(void *opaque, int free_out, int free_in)
 {
diff --git a/hw/audio/milkymist-ac97.c b/hw/audio/milkymist-ac97.c
index 0fa38adbe2..7893539019 100644
--- a/hw/audio/milkymist-ac97.c
+++ b/hw/audio/milkymist-ac97.c
@@ -29,6 +29,7 @@
 #include "audio/audio.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 enum {
     R_AC97_CTRL = 0,
@@ -55,8 +56,9 @@ enum {
 };
 
 #define TYPE_MILKYMIST_AC97 "milkymist-ac97"
-#define MILKYMIST_AC97(obj) \
-    OBJECT_CHECK(MilkymistAC97State, (obj), TYPE_MILKYMIST_AC97)
+typedef struct MilkymistAC97State MilkymistAC97State;
+DECLARE_INSTANCE_CHECKER(MilkymistAC97State, MILKYMIST_AC97,
+                         TYPE_MILKYMIST_AC97)
 
 struct MilkymistAC97State {
     SysBusDevice parent_obj;
@@ -74,7 +76,6 @@ struct MilkymistAC97State {
     qemu_irq dmar_irq;
     qemu_irq dmaw_irq;
 };
-typedef struct MilkymistAC97State MilkymistAC97State;
 
 static void update_voices(MilkymistAC97State *s)
 {
diff --git a/hw/audio/pcspk.c b/hw/audio/pcspk.c
index ea539e7605..cbee8855fb 100644
--- a/hw/audio/pcspk.c
+++ b/hw/audio/pcspk.c
@@ -33,15 +33,18 @@
 #include "migration/vmstate.h"
 #include "hw/audio/pcspk.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 #define PCSPK_BUF_LEN 1792
 #define PCSPK_SAMPLE_RATE 32000
 #define PCSPK_MAX_FREQ (PCSPK_SAMPLE_RATE >> 1)
 #define PCSPK_MIN_COUNT DIV_ROUND_UP(PIT_FREQ, PCSPK_MAX_FREQ)
 
-#define PC_SPEAKER(obj) OBJECT_CHECK(PCSpkState, (obj), TYPE_PC_SPEAKER)
+typedef struct PCSpkState PCSpkState;
+DECLARE_INSTANCE_CHECKER(PCSpkState, PC_SPEAKER,
+                         TYPE_PC_SPEAKER)
 
-typedef struct {
+struct PCSpkState {
     ISADevice parent_obj;
 
     MemoryRegion ioport;
@@ -56,7 +59,7 @@ typedef struct {
     uint8_t data_on;
     uint8_t dummy_refresh_clock;
     bool migrate;
-} PCSpkState;
+};
 
 static const char *s_spk = "pcspk";
 static PCSpkState *pcspk_state;
diff --git a/hw/audio/pl041.c b/hw/audio/pl041.c
index c3d3eab6ed..570a234b72 100644
--- a/hw/audio/pl041.c
+++ b/hw/audio/pl041.c
@@ -30,6 +30,7 @@
 #include "pl041.h"
 #include "lm4549.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #if 0
 #define PL041_DEBUG_LEVEL 1
@@ -77,9 +78,11 @@ typedef struct {
 } pl041_channel;
 
 #define TYPE_PL041 "pl041"
-#define PL041(obj) OBJECT_CHECK(PL041State, (obj), TYPE_PL041)
+typedef struct PL041State PL041State;
+DECLARE_INSTANCE_CHECKER(PL041State, PL041,
+                         TYPE_PL041)
 
-typedef struct PL041State {
+struct PL041State {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -90,7 +93,7 @@ typedef struct PL041State {
     pl041_regfile regs;
     pl041_channel fifo1;
     lm4549_state codec;
-} PL041State;
+};
 
 
 static const unsigned char pl041_default_id[8] = {
diff --git a/hw/audio/sb16.c b/hw/audio/sb16.c
index 2d9e50f99b..6aa2c0fb93 100644
--- a/hw/audio/sb16.c
+++ b/hw/audio/sb16.c
@@ -34,6 +34,7 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 #define dolog(...) AUD_log ("sb16", __VA_ARGS__)
 
@@ -49,9 +50,11 @@
 static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992.";
 
 #define TYPE_SB16 "sb16"
-#define SB16(obj) OBJECT_CHECK (SB16State, (obj), TYPE_SB16)
+typedef struct SB16State SB16State;
+DECLARE_INSTANCE_CHECKER(SB16State, SB16,
+                         TYPE_SB16)
 
-typedef struct SB16State {
+struct SB16State {
     ISADevice parent_obj;
 
     QEMUSoundCard card;
@@ -112,7 +115,7 @@ typedef struct SB16State {
     int mixer_nreg;
     uint8_t mixer_regs[256];
     PortioList portio_list;
-} SB16State;
+};
 
 static void SB_audio_callback (void *opaque, int free);
 
diff --git a/hw/audio/wm8750.c b/hw/audio/wm8750.c
index 92b2902a10..7d6fcfec03 100644
--- a/hw/audio/wm8750.c
+++ b/hw/audio/wm8750.c
@@ -13,6 +13,7 @@
 #include "qemu/module.h"
 #include "hw/audio/wm8750.h"
 #include "audio/audio.h"
+#include "qom/object.h"
 
 #define IN_PORT_N	3
 #define OUT_PORT_N	3
@@ -26,9 +27,11 @@ typedef struct {
     int dac_hz;
 } WMRate;
 
-#define WM8750(obj) OBJECT_CHECK(WM8750State, (obj), TYPE_WM8750)
+typedef struct WM8750State WM8750State;
+DECLARE_INSTANCE_CHECKER(WM8750State, WM8750,
+                         TYPE_WM8750)
 
-typedef struct WM8750State {
+struct WM8750State {
     I2CSlave parent_obj;
 
     uint8_t i2c_data[2];
@@ -54,7 +57,7 @@ typedef struct WM8750State {
     const WMRate *rate;
     uint8_t rate_vmstate;
     int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master;
-} WM8750State;
+};
 
 /* pow(10.0, -i / 20.0) * 255, i = 0..42 */
 static const uint8_t wm8750_vol_db_table[] = {
diff --git a/hw/avr/arduino.c b/hw/avr/arduino.c
index 65093ab6fd..3c8388490d 100644
--- a/hw/avr/arduino.c
+++ b/hw/avr/arduino.c
@@ -15,30 +15,29 @@
 #include "hw/boards.h"
 #include "atmega.h"
 #include "boot.h"
+#include "qom/object.h"
 
-typedef struct ArduinoMachineState {
+struct ArduinoMachineState {
     /*< private >*/
     MachineState parent_obj;
     /*< public >*/
     AtmegaMcuState mcu;
-} ArduinoMachineState;
+};
+typedef struct ArduinoMachineState ArduinoMachineState;
 
-typedef struct ArduinoMachineClass {
+struct ArduinoMachineClass {
     /*< private >*/
     MachineClass parent_class;
     /*< public >*/
     const char *mcu_type;
     uint64_t xtal_hz;
-} ArduinoMachineClass;
+};
+typedef struct ArduinoMachineClass ArduinoMachineClass;
 
 #define TYPE_ARDUINO_MACHINE \
         MACHINE_TYPE_NAME("arduino")
-#define ARDUINO_MACHINE(obj) \
-        OBJECT_CHECK(ArduinoMachineState, (obj), TYPE_ARDUINO_MACHINE)
-#define ARDUINO_MACHINE_CLASS(klass) \
-        OBJECT_CLASS_CHECK(ArduinoMachineClass, (klass), TYPE_ARDUINO_MACHINE)
-#define ARDUINO_MACHINE_GET_CLASS(obj) \
-        OBJECT_GET_CLASS(ArduinoMachineClass, (obj), TYPE_ARDUINO_MACHINE)
+DECLARE_OBJ_CHECKERS(ArduinoMachineState, ArduinoMachineClass,
+                     ARDUINO_MACHINE, TYPE_ARDUINO_MACHINE)
 
 static void arduino_machine_init(MachineState *machine)
 {
diff --git a/hw/avr/atmega.c b/hw/avr/atmega.c
index 7131224431..44c6afebbb 100644
--- a/hw/avr/atmega.c
+++ b/hw/avr/atmega.c
@@ -17,6 +17,7 @@
 #include "sysemu/sysemu.h"
 #include "hw/qdev-properties.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 #include "hw/boards.h" /* FIXME memory_region_allocate_system_memory for sram */
 #include "hw/misc/unimp.h"
 #include "atmega.h"
@@ -45,7 +46,7 @@ typedef struct {
     bool is_timer16;
 } peripheral_cfg;
 
-typedef struct AtmegaMcuClass {
+struct AtmegaMcuClass {
     /*< private >*/
     SysBusDeviceClass parent_class;
     /*< public >*/
@@ -59,12 +60,11 @@ typedef struct AtmegaMcuClass {
     size_t adc_count;
     const uint8_t *irq;
     const peripheral_cfg *dev;
-} AtmegaMcuClass;
+};
+typedef struct AtmegaMcuClass AtmegaMcuClass;
 
-#define ATMEGA_MCU_CLASS(klass) \
-    OBJECT_CLASS_CHECK(AtmegaMcuClass, (klass), TYPE_ATMEGA_MCU)
-#define ATMEGA_MCU_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(AtmegaMcuClass, (obj), TYPE_ATMEGA_MCU)
+DECLARE_CLASS_CHECKERS(AtmegaMcuClass, ATMEGA_MCU,
+                       TYPE_ATMEGA_MCU)
 
 static const peripheral_cfg dev168_328[PERIFMAX] = {
     [USART0]        = {  0xc0, POWER0, 1 },
diff --git a/hw/avr/atmega.h b/hw/avr/atmega.h
index 0928cb0ce6..a99ee15c7e 100644
--- a/hw/avr/atmega.h
+++ b/hw/avr/atmega.h
@@ -15,6 +15,7 @@
 #include "hw/timer/avr_timer16.h"
 #include "hw/misc/avr_power.h"
 #include "target/avr/cpu.h"
+#include "qom/object.h"
 
 #define TYPE_ATMEGA_MCU     "ATmega"
 #define TYPE_ATMEGA168_MCU  "ATmega168"
@@ -22,14 +23,16 @@
 #define TYPE_ATMEGA1280_MCU "ATmega1280"
 #define TYPE_ATMEGA2560_MCU "ATmega2560"
 
-#define ATMEGA_MCU(obj) OBJECT_CHECK(AtmegaMcuState, (obj), TYPE_ATMEGA_MCU)
+typedef struct AtmegaMcuState AtmegaMcuState;
+DECLARE_INSTANCE_CHECKER(AtmegaMcuState, ATMEGA_MCU,
+                         TYPE_ATMEGA_MCU)
 
 #define POWER_MAX 2
 #define USART_MAX 4
 #define TIMER_MAX 6
 #define GPIO_MAX 12
 
-typedef struct AtmegaMcuState {
+struct AtmegaMcuState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -43,6 +46,6 @@ typedef struct AtmegaMcuState {
     AVRUsartState usart[USART_MAX];
     AVRTimer16State timer[TIMER_MAX];
     uint64_t xtal_freq_hz;
-} AtmegaMcuState;
+};
 
 #endif /* HW_AVR_ATMEGA_H */
diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index e9ed3eef45..224bac504f 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -46,6 +46,7 @@
 #include "qemu/main-loop.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /********************************************************/
 /* debug Floppy devices */
@@ -64,16 +65,18 @@
 /* qdev floppy bus                                      */
 
 #define TYPE_FLOPPY_BUS "floppy-bus"
-#define FLOPPY_BUS(obj) OBJECT_CHECK(FloppyBus, (obj), TYPE_FLOPPY_BUS)
+typedef struct FloppyBus FloppyBus;
+DECLARE_INSTANCE_CHECKER(FloppyBus, FLOPPY_BUS,
+                         TYPE_FLOPPY_BUS)
 
 typedef struct FDCtrl FDCtrl;
 typedef struct FDrive FDrive;
 static FDrive *get_drv(FDCtrl *fdctrl, int unit);
 
-typedef struct FloppyBus {
+struct FloppyBus {
     BusState bus;
     FDCtrl *fdc;
-} FloppyBus;
+};
 
 static const TypeInfo floppy_bus_info = {
     .name = TYPE_FLOPPY_BUS,
@@ -494,15 +497,16 @@ static const BlockDevOps fd_block_ops = {
 
 
 #define TYPE_FLOPPY_DRIVE "floppy"
-#define FLOPPY_DRIVE(obj) \
-     OBJECT_CHECK(FloppyDrive, (obj), TYPE_FLOPPY_DRIVE)
+typedef struct FloppyDrive FloppyDrive;
+DECLARE_INSTANCE_CHECKER(FloppyDrive, FLOPPY_DRIVE,
+                         TYPE_FLOPPY_DRIVE)
 
-typedef struct FloppyDrive {
+struct FloppyDrive {
     DeviceState     qdev;
     uint32_t        unit;
     BlockConf       conf;
     FloppyDriveType type;
-} FloppyDrive;
+};
 
 static Property floppy_drive_properties[] = {
     DEFINE_PROP_UINT32("unit", FloppyDrive, unit, -1),
@@ -886,19 +890,23 @@ static FloppyDriveType get_fallback_drive_type(FDrive *drv)
 }
 
 #define TYPE_SYSBUS_FDC "base-sysbus-fdc"
-#define SYSBUS_FDC(obj) OBJECT_CHECK(FDCtrlSysBus, (obj), TYPE_SYSBUS_FDC)
+typedef struct FDCtrlSysBus FDCtrlSysBus;
+DECLARE_INSTANCE_CHECKER(FDCtrlSysBus, SYSBUS_FDC,
+                         TYPE_SYSBUS_FDC)
 
-typedef struct FDCtrlSysBus {
+struct FDCtrlSysBus {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
 
     struct FDCtrl state;
-} FDCtrlSysBus;
+};
 
-#define ISA_FDC(obj) OBJECT_CHECK(FDCtrlISABus, (obj), TYPE_ISA_FDC)
+typedef struct FDCtrlISABus FDCtrlISABus;
+DECLARE_INSTANCE_CHECKER(FDCtrlISABus, ISA_FDC,
+                         TYPE_ISA_FDC)
 
-typedef struct FDCtrlISABus {
+struct FDCtrlISABus {
     ISADevice parent_obj;
 
     uint32_t iobase;
@@ -907,7 +915,7 @@ typedef struct FDCtrlISABus {
     struct FDCtrl state;
     int32_t bootindexA;
     int32_t bootindexB;
-} FDCtrlISABus;
+};
 
 static uint32_t fdctrl_read (void *opaque, uint32_t reg)
 {
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 15824450cd..8dae779c76 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -33,6 +33,7 @@
 #include "qemu/error-report.h"
 #include "qapi/error.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /* Fields for FlashPartInfo->flags */
 
@@ -414,7 +415,7 @@ typedef enum {
 
 #define M25P80_INTERNAL_DATA_BUFFER_SZ 16
 
-typedef struct Flash {
+struct Flash {
     SSISlave parent_obj;
 
     BlockBackend *blk;
@@ -454,20 +455,18 @@ typedef struct Flash {
 
     const FlashPartInfo *pi;
 
-} Flash;
+};
+typedef struct Flash Flash;
 
-typedef struct M25P80Class {
+struct M25P80Class {
     SSISlaveClass parent_class;
     FlashPartInfo *pi;
-} M25P80Class;
+};
+typedef struct M25P80Class M25P80Class;
 
 #define TYPE_M25P80 "m25p80-generic"
-#define M25P80(obj) \
-     OBJECT_CHECK(Flash, (obj), TYPE_M25P80)
-#define M25P80_CLASS(klass) \
-     OBJECT_CLASS_CHECK(M25P80Class, (klass), TYPE_M25P80)
-#define M25P80_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(M25P80Class, (obj), TYPE_M25P80)
+DECLARE_OBJ_CHECKERS(Flash, M25P80Class,
+                     M25P80, TYPE_M25P80)
 
 static inline Manufacturer get_man(Flash *s)
 {
diff --git a/hw/block/nand.c b/hw/block/nand.c
index 654e0cb5d1..5c8112ed5a 100644
--- a/hw/block/nand.c
+++ b/hw/block/nand.c
@@ -27,6 +27,7 @@
 #include "qapi/error.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 # define NAND_CMD_READ0		0x00
 # define NAND_CMD_READ1		0x01
@@ -89,8 +90,8 @@ struct NANDFlashState {
 
 #define TYPE_NAND "nand"
 
-#define NAND(obj) \
-    OBJECT_CHECK(NANDFlashState, (obj), TYPE_NAND)
+DECLARE_INSTANCE_CHECKER(NANDFlashState, NAND,
+                         TYPE_NAND)
 
 static void mem_and(uint8_t *dest, const uint8_t *src, size_t n)
 {
diff --git a/hw/block/onenand.c b/hw/block/onenand.c
index 898ac563a3..19f55aba66 100644
--- a/hw/block/onenand.c
+++ b/hw/block/onenand.c
@@ -31,6 +31,7 @@
 #include "qemu/error-report.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /* 11 for 2kB-page OneNAND ("2nd generation") and 10 for 1kB-page chips */
 #define PAGE_SHIFT	11
@@ -39,9 +40,11 @@
 #define BLOCK_SHIFT	(PAGE_SHIFT + 6)
 
 #define TYPE_ONE_NAND "onenand"
-#define ONE_NAND(obj) OBJECT_CHECK(OneNANDState, (obj), TYPE_ONE_NAND)
+typedef struct OneNANDState OneNANDState;
+DECLARE_INSTANCE_CHECKER(OneNANDState, ONE_NAND,
+                         TYPE_ONE_NAND)
 
-typedef struct OneNANDState {
+struct OneNANDState {
     SysBusDevice parent_obj;
 
     struct {
@@ -85,7 +88,7 @@ typedef struct OneNANDState {
     int secs_cur;
     int blocks;
     uint8_t *blockwp;
-} OneNANDState;
+};
 
 enum {
     ONEN_BUF_BLOCK = 0,
diff --git a/hw/char/debugcon.c b/hw/char/debugcon.c
index c8d938efb5..daaaca0f39 100644
--- a/hw/char/debugcon.c
+++ b/hw/char/debugcon.c
@@ -30,10 +30,12 @@
 #include "chardev/char-fe.h"
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define TYPE_ISA_DEBUGCON_DEVICE "isa-debugcon"
-#define ISA_DEBUGCON_DEVICE(obj) \
-     OBJECT_CHECK(ISADebugconState, (obj), TYPE_ISA_DEBUGCON_DEVICE)
+typedef struct ISADebugconState ISADebugconState;
+DECLARE_INSTANCE_CHECKER(ISADebugconState, ISA_DEBUGCON_DEVICE,
+                         TYPE_ISA_DEBUGCON_DEVICE)
 
 //#define DEBUG_DEBUGCON
 
@@ -43,12 +45,12 @@ typedef struct DebugconState {
     uint32_t readback;
 } DebugconState;
 
-typedef struct ISADebugconState {
+struct ISADebugconState {
     ISADevice parent_obj;
 
     uint32_t iobase;
     DebugconState state;
-} ISADebugconState;
+};
 
 static void debugcon_ioport_write(void *opaque, hwaddr addr, uint64_t val,
                                   unsigned width)
diff --git a/hw/char/etraxfs_ser.c b/hw/char/etraxfs_ser.c
index 947bdb649a..d9fba2ae6c 100644
--- a/hw/char/etraxfs_ser.c
+++ b/hw/char/etraxfs_ser.c
@@ -29,6 +29,7 @@
 #include "chardev/char-fe.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define D(x)
 
@@ -49,10 +50,11 @@
 #define STAT_TR_RDY  24
 
 #define TYPE_ETRAX_FS_SERIAL "etraxfs,serial"
-#define ETRAX_SERIAL(obj) \
-    OBJECT_CHECK(ETRAXSerial, (obj), TYPE_ETRAX_FS_SERIAL)
+typedef struct ETRAXSerial ETRAXSerial;
+DECLARE_INSTANCE_CHECKER(ETRAXSerial, ETRAX_SERIAL,
+                         TYPE_ETRAX_FS_SERIAL)
 
-typedef struct ETRAXSerial {
+struct ETRAXSerial {
     SysBusDevice parent_obj;
 
     MemoryRegion mmio;
@@ -67,7 +69,7 @@ typedef struct ETRAXSerial {
 
     /* Control registers.  */
     uint32_t regs[R_MAX];
-} ETRAXSerial;
+};
 
 static void ser_update_irq(ETRAXSerial *s)
 {
diff --git a/hw/char/exynos4210_uart.c b/hw/char/exynos4210_uart.c
index 9c8ab3a77d..b8ea34edbd 100644
--- a/hw/char/exynos4210_uart.c
+++ b/hw/char/exynos4210_uart.c
@@ -34,6 +34,7 @@
 #include "hw/qdev-properties.h"
 
 #include "trace.h"
+#include "qom/object.h"
 
 /*
  *  Offsets for UART registers relative to SFR base address
@@ -138,10 +139,11 @@ typedef struct {
 } Exynos4210UartFIFO;
 
 #define TYPE_EXYNOS4210_UART "exynos4210.uart"
-#define EXYNOS4210_UART(obj) \
-    OBJECT_CHECK(Exynos4210UartState, (obj), TYPE_EXYNOS4210_UART)
+typedef struct Exynos4210UartState Exynos4210UartState;
+DECLARE_INSTANCE_CHECKER(Exynos4210UartState, EXYNOS4210_UART,
+                         TYPE_EXYNOS4210_UART)
 
-typedef struct Exynos4210UartState {
+struct Exynos4210UartState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -159,7 +161,7 @@ typedef struct Exynos4210UartState {
 
     uint32_t channel;
 
-} Exynos4210UartState;
+};
 
 
 /* Used only for tracing */
diff --git a/hw/char/grlib_apbuart.c b/hw/char/grlib_apbuart.c
index 16d0feac59..6fd88d83ad 100644
--- a/hw/char/grlib_apbuart.c
+++ b/hw/char/grlib_apbuart.c
@@ -31,6 +31,7 @@
 #include "chardev/char-fe.h"
 
 #include "trace.h"
+#include "qom/object.h"
 
 #define UART_REG_SIZE 20     /* Size of memory mapped registers */
 
@@ -72,10 +73,11 @@
 
 #define FIFO_LENGTH 1024
 
-#define GRLIB_APB_UART(obj) \
-    OBJECT_CHECK(UART, (obj), TYPE_GRLIB_APB_UART)
+typedef struct UART UART;
+DECLARE_INSTANCE_CHECKER(UART, GRLIB_APB_UART,
+                         TYPE_GRLIB_APB_UART)
 
-typedef struct UART {
+struct UART {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -91,7 +93,7 @@ typedef struct UART {
     char buffer[FIFO_LENGTH];
     int  len;
     int  current;
-} UART;
+};
 
 static int uart_data_to_read(UART *uart)
 {
diff --git a/hw/char/ipoctal232.c b/hw/char/ipoctal232.c
index d7c497b939..2c987df8ad 100644
--- a/hw/char/ipoctal232.c
+++ b/hw/char/ipoctal232.c
@@ -16,6 +16,7 @@
 #include "qemu/bitops.h"
 #include "qemu/module.h"
 #include "chardev/char-fe.h"
+#include "qom/object.h"
 
 /* #define DEBUG_IPOCTAL */
 
@@ -122,8 +123,8 @@ struct IPOctalState {
 
 #define TYPE_IPOCTAL "ipoctal232"
 
-#define IPOCTAL(obj) \
-    OBJECT_CHECK(IPOctalState, (obj), TYPE_IPOCTAL)
+DECLARE_INSTANCE_CHECKER(IPOctalState, IPOCTAL,
+                         TYPE_IPOCTAL)
 
 static const VMStateDescription vmstate_scc2698_channel = {
     .name = "scc2698_channel",
diff --git a/hw/char/lm32_juart.c b/hw/char/lm32_juart.c
index 3f34861233..5723f2e189 100644
--- a/hw/char/lm32_juart.c
+++ b/hw/char/lm32_juart.c
@@ -26,6 +26,7 @@
 
 #include "hw/char/lm32_juart.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 enum {
     LM32_JUART_MIN_SAVE_VERSION = 0,
@@ -41,7 +42,9 @@ enum {
     JRX_FULL = (1<<8),
 };
 
-#define LM32_JUART(obj) OBJECT_CHECK(LM32JuartState, (obj), TYPE_LM32_JUART)
+typedef struct LM32JuartState LM32JuartState;
+DECLARE_INSTANCE_CHECKER(LM32JuartState, LM32_JUART,
+                         TYPE_LM32_JUART)
 
 struct LM32JuartState {
     SysBusDevice parent_obj;
@@ -51,7 +54,6 @@ struct LM32JuartState {
     uint32_t jtx;
     uint32_t jrx;
 };
-typedef struct LM32JuartState LM32JuartState;
 
 uint32_t lm32_juart_get_jtx(DeviceState *d)
 {
diff --git a/hw/char/lm32_uart.c b/hw/char/lm32_uart.c
index b0b1092889..624bc83c5f 100644
--- a/hw/char/lm32_uart.c
+++ b/hw/char/lm32_uart.c
@@ -31,6 +31,7 @@
 #include "chardev/char-fe.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 enum {
     R_RXTX = 0,
@@ -94,7 +95,9 @@ enum {
 };
 
 #define TYPE_LM32_UART "lm32-uart"
-#define LM32_UART(obj) OBJECT_CHECK(LM32UartState, (obj), TYPE_LM32_UART)
+typedef struct LM32UartState LM32UartState;
+DECLARE_INSTANCE_CHECKER(LM32UartState, LM32_UART,
+                         TYPE_LM32_UART)
 
 struct LM32UartState {
     SysBusDevice parent_obj;
@@ -105,7 +108,6 @@ struct LM32UartState {
 
     uint32_t regs[R_MAX];
 };
-typedef struct LM32UartState LM32UartState;
 
 static void uart_update_irq(LM32UartState *s)
 {
diff --git a/hw/char/mcf_uart.c b/hw/char/mcf_uart.c
index 8d1b7f2bca..f6baa3ce77 100644
--- a/hw/char/mcf_uart.c
+++ b/hw/char/mcf_uart.c
@@ -14,8 +14,9 @@
 #include "hw/m68k/mcf.h"
 #include "hw/qdev-properties.h"
 #include "chardev/char-fe.h"
+#include "qom/object.h"
 
-typedef struct {
+struct mcf_uart_state {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -33,10 +34,12 @@ typedef struct {
     int rx_enabled;
     qemu_irq irq;
     CharBackend chr;
-} mcf_uart_state;
+};
+typedef struct mcf_uart_state mcf_uart_state;
 
 #define TYPE_MCF_UART "mcf-uart"
-#define MCF_UART(obj) OBJECT_CHECK(mcf_uart_state, (obj), TYPE_MCF_UART)
+DECLARE_INSTANCE_CHECKER(mcf_uart_state, MCF_UART,
+                         TYPE_MCF_UART)
 
 /* UART Status Register bits.  */
 #define MCF_UART_RxRDY  0x01
diff --git a/hw/char/milkymist-uart.c b/hw/char/milkymist-uart.c
index 1439efb42a..41204a0e28 100644
--- a/hw/char/milkymist-uart.c
+++ b/hw/char/milkymist-uart.c
@@ -30,6 +30,7 @@
 #include "chardev/char-fe.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 enum {
     R_RXTX = 0,
@@ -57,8 +58,9 @@ enum {
 };
 
 #define TYPE_MILKYMIST_UART "milkymist-uart"
-#define MILKYMIST_UART(obj) \
-    OBJECT_CHECK(MilkymistUartState, (obj), TYPE_MILKYMIST_UART)
+typedef struct MilkymistUartState MilkymistUartState;
+DECLARE_INSTANCE_CHECKER(MilkymistUartState, MILKYMIST_UART,
+                         TYPE_MILKYMIST_UART)
 
 struct MilkymistUartState {
     SysBusDevice parent_obj;
@@ -69,7 +71,6 @@ struct MilkymistUartState {
 
     uint32_t regs[R_MAX];
 };
-typedef struct MilkymistUartState MilkymistUartState;
 
 static void uart_update_irq(MilkymistUartState *s)
 {
diff --git a/hw/char/parallel.c b/hw/char/parallel.c
index c0f34bf924..ddb14f3197 100644
--- a/hw/char/parallel.c
+++ b/hw/char/parallel.c
@@ -37,6 +37,7 @@
 #include "sysemu/reset.h"
 #include "sysemu/sysemu.h"
 #include "trace.h"
+#include "qom/object.h"
 
 //#define DEBUG_PARALLEL
 
@@ -92,17 +93,18 @@ typedef struct ParallelState {
 } ParallelState;
 
 #define TYPE_ISA_PARALLEL "isa-parallel"
-#define ISA_PARALLEL(obj) \
-    OBJECT_CHECK(ISAParallelState, (obj), TYPE_ISA_PARALLEL)
+typedef struct ISAParallelState ISAParallelState;
+DECLARE_INSTANCE_CHECKER(ISAParallelState, ISA_PARALLEL,
+                         TYPE_ISA_PARALLEL)
 
-typedef struct ISAParallelState {
+struct ISAParallelState {
     ISADevice parent_obj;
 
     uint32_t index;
     uint32_t iobase;
     uint32_t isairq;
     ParallelState state;
-} ISAParallelState;
+};
 
 static void parallel_update_irq(ParallelState *s)
 {
diff --git a/hw/char/sclpconsole-lm.c b/hw/char/sclpconsole-lm.c
index 5848b4e9c5..81f6d0ed4f 100644
--- a/hw/char/sclpconsole-lm.c
+++ b/hw/char/sclpconsole-lm.c
@@ -24,6 +24,7 @@
 #include "hw/s390x/event-facility.h"
 #include "hw/qdev-properties.h"
 #include "hw/s390x/ebcdic.h"
+#include "qom/object.h"
 
 #define SIZE_BUFFER 4096
 #define NEWLINE     "\n"
@@ -37,18 +38,19 @@ typedef struct OprtnsCommand {
 /* max size for line-mode data in 4K SCCB page */
 #define SIZE_CONSOLE_BUFFER (SCCB_DATA_LEN - sizeof(OprtnsCommand))
 
-typedef struct SCLPConsoleLM {
+struct SCLPConsoleLM {
     SCLPEvent event;
     CharBackend chr;
     bool echo;                  /* immediate echo of input if true        */
     uint32_t write_errors;      /* errors writing to char layer           */
     uint32_t length;            /* length of byte stream in buffer        */
     uint8_t buf[SIZE_CONSOLE_BUFFER];
-} SCLPConsoleLM;
+};
+typedef struct SCLPConsoleLM SCLPConsoleLM;
 
 #define TYPE_SCLPLM_CONSOLE "sclplmconsole"
-#define SCLPLM_CONSOLE(obj) \
-    OBJECT_CHECK(SCLPConsoleLM, (obj), TYPE_SCLPLM_CONSOLE)
+DECLARE_INSTANCE_CHECKER(SCLPConsoleLM, SCLPLM_CONSOLE,
+                         TYPE_SCLPLM_CONSOLE)
 
 /*
 *  Character layer call-back functions
diff --git a/hw/char/sclpconsole.c b/hw/char/sclpconsole.c
index d6f7da0818..aa72ab40b9 100644
--- a/hw/char/sclpconsole.c
+++ b/hw/char/sclpconsole.c
@@ -22,6 +22,7 @@
 #include "hw/qdev-properties.h"
 #include "hw/s390x/event-facility.h"
 #include "chardev/char-fe.h"
+#include "qom/object.h"
 
 typedef struct ASCIIConsoleData {
     EventBufferHeader ebh;
@@ -31,7 +32,7 @@ typedef struct ASCIIConsoleData {
 /* max size for ASCII data in 4K SCCB page */
 #define SIZE_BUFFER_VT220 4080
 
-typedef struct SCLPConsole {
+struct SCLPConsole {
     SCLPEvent event;
     CharBackend chr;
     uint8_t iov[SIZE_BUFFER_VT220];
@@ -40,11 +41,12 @@ typedef struct SCLPConsole {
     uint32_t iov_data_len;  /* length of byte stream in buffer             */
     uint32_t iov_sclp_rest; /* length of byte stream not read via SCLP     */
     bool notify;            /* qemu_notify_event() req'd if true           */
-} SCLPConsole;
+};
+typedef struct SCLPConsole SCLPConsole;
 
 #define TYPE_SCLP_CONSOLE "sclpconsole"
-#define SCLP_CONSOLE(obj) \
-    OBJECT_CHECK(SCLPConsole, (obj), TYPE_SCLP_CONSOLE)
+DECLARE_INSTANCE_CHECKER(SCLPConsole, SCLP_CONSOLE,
+                         TYPE_SCLP_CONSOLE)
 
 /* character layer call-back functions */
 
diff --git a/hw/char/serial-isa.c b/hw/char/serial-isa.c
index b4c65949cd..d4aad81a85 100644
--- a/hw/char/serial-isa.c
+++ b/hw/char/serial-isa.c
@@ -32,17 +32,20 @@
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
-#define ISA_SERIAL(obj) OBJECT_CHECK(ISASerialState, (obj), TYPE_ISA_SERIAL)
+typedef struct ISASerialState ISASerialState;
+DECLARE_INSTANCE_CHECKER(ISASerialState, ISA_SERIAL,
+                         TYPE_ISA_SERIAL)
 
-typedef struct ISASerialState {
+struct ISASerialState {
     ISADevice parent_obj;
 
     uint32_t index;
     uint32_t iobase;
     uint32_t isairq;
     SerialState state;
-} ISASerialState;
+};
 
 static const int isa_serial_io[MAX_ISA_SERIAL_PORTS] = {
     0x3f8, 0x2f8, 0x3e8, 0x2e8
diff --git a/hw/char/serial-pci.c b/hw/char/serial-pci.c
index cd56924a43..f68948154e 100644
--- a/hw/char/serial-pci.c
+++ b/hw/char/serial-pci.c
@@ -33,15 +33,18 @@
 #include "hw/pci/pci.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
-typedef struct PCISerialState {
+struct PCISerialState {
     PCIDevice dev;
     SerialState state;
     uint8_t prog_if;
-} PCISerialState;
+};
+typedef struct PCISerialState PCISerialState;
 
 #define TYPE_PCI_SERIAL "pci-serial"
-#define PCI_SERIAL(s) OBJECT_CHECK(PCISerialState, (s), TYPE_PCI_SERIAL)
+DECLARE_INSTANCE_CHECKER(PCISerialState, PCI_SERIAL,
+                         TYPE_PCI_SERIAL)
 
 static void serial_pci_realize(PCIDevice *dev, Error **errp)
 {
diff --git a/hw/char/spapr_vty.c b/hw/char/spapr_vty.c
index 464a52342a..dd6dd2d8c3 100644
--- a/hw/char/spapr_vty.c
+++ b/hw/char/spapr_vty.c
@@ -8,19 +8,21 @@
 #include "hw/ppc/spapr.h"
 #include "hw/ppc/spapr_vio.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define VTERM_BUFSIZE   16
 
-typedef struct SpaprVioVty {
+struct SpaprVioVty {
     SpaprVioDevice sdev;
     CharBackend chardev;
     uint32_t in, out;
     uint8_t buf[VTERM_BUFSIZE];
-} SpaprVioVty;
+};
+typedef struct SpaprVioVty SpaprVioVty;
 
 #define TYPE_VIO_SPAPR_VTY_DEVICE "spapr-vty"
-#define VIO_SPAPR_VTY_DEVICE(obj) \
-     OBJECT_CHECK(SpaprVioVty, (obj), TYPE_VIO_SPAPR_VTY_DEVICE)
+DECLARE_INSTANCE_CHECKER(SpaprVioVty, VIO_SPAPR_VTY_DEVICE,
+                         TYPE_VIO_SPAPR_VTY_DEVICE)
 
 static int vty_can_receive(void *opaque)
 {
diff --git a/hw/char/terminal3270.c b/hw/char/terminal3270.c
index 2c47ebf007..d77981bb6d 100644
--- a/hw/char/terminal3270.c
+++ b/hw/char/terminal3270.c
@@ -17,6 +17,7 @@
 #include "chardev/char-fe.h"
 #include "hw/qdev-properties.h"
 #include "hw/s390x/3270-ccw.h"
+#include "qom/object.h"
 
 /* Enough spaces for different window sizes. */
 #define INPUT_BUFFER_SIZE  1000
@@ -26,7 +27,7 @@
  */
 #define OUTPUT_BUFFER_SIZE 2051
 
-typedef struct Terminal3270 {
+struct Terminal3270 {
     EmulatedCcw3270Device cdev;
     CharBackend chr;
     uint8_t inv[INPUT_BUFFER_SIZE];
@@ -34,11 +35,12 @@ typedef struct Terminal3270 {
     int in_len;
     bool handshake_done;
     guint timer_tag;
-} Terminal3270;
+};
+typedef struct Terminal3270 Terminal3270;
 
 #define TYPE_TERMINAL_3270 "x-terminal3270"
-#define TERMINAL_3270(obj) \
-        OBJECT_CHECK(Terminal3270, (obj), TYPE_TERMINAL_3270)
+DECLARE_INSTANCE_CHECKER(Terminal3270, TERMINAL_3270,
+                         TYPE_TERMINAL_3270)
 
 static int terminal_can_read(void *opaque)
 {
diff --git a/hw/char/virtio-console.c b/hw/char/virtio-console.c
index 4f46753ea3..bc752cf90f 100644
--- a/hw/char/virtio-console.c
+++ b/hw/char/virtio-console.c
@@ -19,17 +19,19 @@
 #include "hw/virtio/virtio-serial.h"
 #include "qapi/error.h"
 #include "qapi/qapi-events-char.h"
+#include "qom/object.h"
 
 #define TYPE_VIRTIO_CONSOLE_SERIAL_PORT "virtserialport"
-#define VIRTIO_CONSOLE(obj) \
-    OBJECT_CHECK(VirtConsole, (obj), TYPE_VIRTIO_CONSOLE_SERIAL_PORT)
+typedef struct VirtConsole VirtConsole;
+DECLARE_INSTANCE_CHECKER(VirtConsole, VIRTIO_CONSOLE,
+                         TYPE_VIRTIO_CONSOLE_SERIAL_PORT)
 
-typedef struct VirtConsole {
+struct VirtConsole {
     VirtIOSerialPort parent_obj;
 
     CharBackend chr;
     guint watch;
-} VirtConsole;
+};
 
 /*
  * Callback function that's called from chardevs when backend becomes
diff --git a/hw/char/xilinx_uartlite.c b/hw/char/xilinx_uartlite.c
index ae4ccd00c7..8e9f9cd9ec 100644
--- a/hw/char/xilinx_uartlite.c
+++ b/hw/char/xilinx_uartlite.c
@@ -29,6 +29,7 @@
 #include "hw/sysbus.h"
 #include "qemu/module.h"
 #include "chardev/char-fe.h"
+#include "qom/object.h"
 
 #define DUART(x)
 
@@ -52,10 +53,11 @@
 #define CONTROL_IE        0x10
 
 #define TYPE_XILINX_UARTLITE "xlnx.xps-uartlite"
-#define XILINX_UARTLITE(obj) \
-    OBJECT_CHECK(XilinxUARTLite, (obj), TYPE_XILINX_UARTLITE)
+typedef struct XilinxUARTLite XilinxUARTLite;
+DECLARE_INSTANCE_CHECKER(XilinxUARTLite, XILINX_UARTLITE,
+                         TYPE_XILINX_UARTLITE)
 
-typedef struct XilinxUARTLite {
+struct XilinxUARTLite {
     SysBusDevice parent_obj;
 
     MemoryRegion mmio;
@@ -67,7 +69,7 @@ typedef struct XilinxUARTLite {
     unsigned int rx_fifo_len;
 
     uint32_t regs[R_MAX];
-} XilinxUARTLite;
+};
 
 static void uart_update_irq(XilinxUARTLite *s)
 {
diff --git a/hw/core/irq.c b/hw/core/irq.c
index fb3045b912..8a9cbdd556 100644
--- a/hw/core/irq.c
+++ b/hw/core/irq.c
@@ -26,7 +26,8 @@
 #include "hw/irq.h"
 #include "qom/object.h"
 
-#define IRQ(obj) OBJECT_CHECK(struct IRQState, (obj), TYPE_IRQ)
+DECLARE_INSTANCE_CHECKER(struct IRQState, IRQ,
+                         TYPE_IRQ)
 
 struct IRQState {
     Object parent_obj;
diff --git a/hw/cpu/realview_mpcore.c b/hw/cpu/realview_mpcore.c
index 96f4d2517a..fb547aceef 100644
--- a/hw/cpu/realview_mpcore.c
+++ b/hw/cpu/realview_mpcore.c
@@ -15,15 +15,17 @@
 #include "hw/intc/realview_gic.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define TYPE_REALVIEW_MPCORE_RIRQ "realview_mpcore"
-#define REALVIEW_MPCORE_RIRQ(obj) \
-    OBJECT_CHECK(mpcore_rirq_state, (obj), TYPE_REALVIEW_MPCORE_RIRQ)
+typedef struct mpcore_rirq_state mpcore_rirq_state;
+DECLARE_INSTANCE_CHECKER(mpcore_rirq_state, REALVIEW_MPCORE_RIRQ,
+                         TYPE_REALVIEW_MPCORE_RIRQ)
 
 /* Dummy PIC to route IRQ lines.  The baseboard has 4 independent IRQ
    controllers.  The output of these, plus some of the raw input lines
    are fed into a single SMP-aware interrupt controller on the CPU.  */
-typedef struct {
+struct mpcore_rirq_state {
     SysBusDevice parent_obj;
 
     qemu_irq cpuic[32];
@@ -32,7 +34,7 @@ typedef struct {
 
     ARM11MPCorePriveState priv;
     RealViewGICState gic[4];
-} mpcore_rirq_state;
+};
 
 /* Map baseboard IRQs onto CPU IRQ lines.  */
 static const int mpcore_irq_map[32] = {
diff --git a/hw/display/ads7846.c b/hw/display/ads7846.c
index 56bf82fe07..4b87ee7135 100644
--- a/hw/display/ads7846.c
+++ b/hw/display/ads7846.c
@@ -16,8 +16,9 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "ui/console.h"
+#include "qom/object.h"
 
-typedef struct {
+struct ADS7846State {
     SSISlave ssidev;
     qemu_irq interrupt;
 
@@ -27,10 +28,12 @@ typedef struct {
 
     int cycle;
     int output;
-} ADS7846State;
+};
+typedef struct ADS7846State ADS7846State;
 
 #define TYPE_ADS7846 "ads7846"
-#define ADS7846(obj) OBJECT_CHECK(ADS7846State, (obj), TYPE_ADS7846)
+DECLARE_INSTANCE_CHECKER(ADS7846State, ADS7846,
+                         TYPE_ADS7846)
 
 /* Control-byte bitfields */
 #define CB_PD0		(1 << 0)
diff --git a/hw/display/artist.c b/hw/display/artist.c
index 955296d3d8..80cd66e41d 100644
--- a/hw/display/artist.c
+++ b/hw/display/artist.c
@@ -22,9 +22,12 @@
 #include "ui/console.h"
 #include "trace.h"
 #include "framebuffer.h"
+#include "qom/object.h"
 
 #define TYPE_ARTIST "artist"
-#define ARTIST(obj) OBJECT_CHECK(ARTISTState, (obj), TYPE_ARTIST)
+typedef struct ARTISTState ARTISTState;
+DECLARE_INSTANCE_CHECKER(ARTISTState, ARTIST,
+                         TYPE_ARTIST)
 
 #ifdef HOST_WORDS_BIGENDIAN
 #define ROP8OFF(_i) (3 - (_i))
@@ -40,7 +43,7 @@ struct vram_buffer {
     unsigned int height;
 };
 
-typedef struct ARTISTState {
+struct ARTISTState {
     SysBusDevice parent_obj;
 
     QemuConsole *con;
@@ -103,7 +106,7 @@ typedef struct ARTISTState {
     uint32_t font_write_pos_y;
 
     int draw_line_pattern;
-} ARTISTState;
+};
 
 typedef enum {
     ARTIST_BUFFER_AP = 1,
diff --git a/hw/display/ati_int.h b/hw/display/ati_int.h
index 2a16708e4f..714005447d 100644
--- a/hw/display/ati_int.h
+++ b/hw/display/ati_int.h
@@ -13,6 +13,7 @@
 #include "hw/pci/pci.h"
 #include "hw/i2c/bitbang_i2c.h"
 #include "vga_int.h"
+#include "qom/object.h"
 
 /*#define DEBUG_ATI*/
 
@@ -29,7 +30,9 @@
 #define PCI_DEVICE_ID_ATI_RADEON_QY 0x5159
 
 #define TYPE_ATI_VGA "ati-vga"
-#define ATI_VGA(obj) OBJECT_CHECK(ATIVGAState, (obj), TYPE_ATI_VGA)
+typedef struct ATIVGAState ATIVGAState;
+DECLARE_INSTANCE_CHECKER(ATIVGAState, ATI_VGA,
+                         TYPE_ATI_VGA)
 
 typedef struct ATIVGARegs {
     uint32_t mm_index;
@@ -82,7 +85,7 @@ typedef struct ATIVGARegs {
     uint32_t default_sc_bottom_right;
 } ATIVGARegs;
 
-typedef struct ATIVGAState {
+struct ATIVGAState {
     PCIDevice dev;
     VGACommonState vga;
     char *model;
@@ -97,7 +100,7 @@ typedef struct ATIVGAState {
     MemoryRegion io;
     MemoryRegion mm;
     ATIVGARegs regs;
-} ATIVGAState;
+};
 
 const char *ati_reg_name(int num);
 
diff --git a/hw/display/bochs-display.c b/hw/display/bochs-display.c
index a8e8ab8325..41587388c4 100644
--- a/hw/display/bochs-display.c
+++ b/hw/display/bochs-display.c
@@ -18,6 +18,7 @@
 
 #include "ui/console.h"
 #include "ui/qemu-pixman.h"
+#include "qom/object.h"
 
 typedef struct BochsDisplayMode {
     pixman_format_code_t format;
@@ -29,7 +30,7 @@ typedef struct BochsDisplayMode {
     uint64_t             size;
 } BochsDisplayMode;
 
-typedef struct BochsDisplayState {
+struct BochsDisplayState {
     /* parent */
     PCIDevice        pci;
 
@@ -53,11 +54,12 @@ typedef struct BochsDisplayState {
 
     /* device state */
     BochsDisplayMode mode;
-} BochsDisplayState;
+};
+typedef struct BochsDisplayState BochsDisplayState;
 
 #define TYPE_BOCHS_DISPLAY "bochs-display"
-#define BOCHS_DISPLAY(obj) OBJECT_CHECK(BochsDisplayState, (obj), \
-                                        TYPE_BOCHS_DISPLAY)
+DECLARE_INSTANCE_CHECKER(BochsDisplayState, BOCHS_DISPLAY,
+                         TYPE_BOCHS_DISPLAY)
 
 static const VMStateDescription vmstate_bochs_display = {
     .name = "bochs-display",
diff --git a/hw/display/cg3.c b/hw/display/cg3.c
index 7cbe6e56ff..d66ba9ad6a 100644
--- a/hw/display/cg3.c
+++ b/hw/display/cg3.c
@@ -36,6 +36,7 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /* Change to 1 to enable debugging */
 #define DEBUG_CG3 0
@@ -65,9 +66,11 @@
 #define CG3_VRAM_OFFSET 0x800000
 
 #define TYPE_CG3 "cgthree"
-#define CG3(obj) OBJECT_CHECK(CG3State, (obj), TYPE_CG3)
+typedef struct CG3State CG3State;
+DECLARE_INSTANCE_CHECKER(CG3State, CG3,
+                         TYPE_CG3)
 
-typedef struct CG3State {
+struct CG3State {
     SysBusDevice parent_obj;
 
     QemuConsole *con;
@@ -82,7 +85,7 @@ typedef struct CG3State {
     uint8_t r[256], g[256], b[256];
     uint16_t width, height, depth;
     uint8_t dac_index, dac_state;
-} CG3State;
+};
 
 static void cg3_update_display(void *opaque)
 {
diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c
index 41e71af08a..c088f38cf8 100644
--- a/hw/display/cirrus_vga.c
+++ b/hw/display/cirrus_vga.c
@@ -44,6 +44,7 @@
 #include "migration/vmstate.h"
 #include "ui/pixel_ops.h"
 #include "cirrus_vga_internal.h"
+#include "qom/object.h"
 
 /*
  * TODO:
@@ -178,14 +179,15 @@ typedef void (*cirrus_fill_t)(struct CirrusVGAState *s,
                               uint32_t dstaddr, int dst_pitch,
                               int width, int height);
 
-typedef struct PCICirrusVGAState {
+struct PCICirrusVGAState {
     PCIDevice dev;
     CirrusVGAState cirrus_vga;
-} PCICirrusVGAState;
+};
+typedef struct PCICirrusVGAState PCICirrusVGAState;
 
 #define TYPE_PCI_CIRRUS_VGA "cirrus-vga"
-#define PCI_CIRRUS_VGA(obj) \
-    OBJECT_CHECK(PCICirrusVGAState, (obj), TYPE_PCI_CIRRUS_VGA)
+DECLARE_INSTANCE_CHECKER(PCICirrusVGAState, PCI_CIRRUS_VGA,
+                         TYPE_PCI_CIRRUS_VGA)
 
 static uint8_t rop_to_index[256];
 
diff --git a/hw/display/cirrus_vga_isa.c b/hw/display/cirrus_vga_isa.c
index 825ba57298..e6adee1df4 100644
--- a/hw/display/cirrus_vga_isa.c
+++ b/hw/display/cirrus_vga_isa.c
@@ -30,16 +30,18 @@
 #include "hw/qdev-properties.h"
 #include "hw/isa/isa.h"
 #include "cirrus_vga_internal.h"
+#include "qom/object.h"
 
 #define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
-#define ISA_CIRRUS_VGA(obj) \
-    OBJECT_CHECK(ISACirrusVGAState, (obj), TYPE_ISA_CIRRUS_VGA)
+typedef struct ISACirrusVGAState ISACirrusVGAState;
+DECLARE_INSTANCE_CHECKER(ISACirrusVGAState, ISA_CIRRUS_VGA,
+                         TYPE_ISA_CIRRUS_VGA)
 
-typedef struct ISACirrusVGAState {
+struct ISACirrusVGAState {
     ISADevice parent_obj;
 
     CirrusVGAState cirrus_vga;
-} ISACirrusVGAState;
+};
 
 static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp)
 {
diff --git a/hw/display/exynos4210_fimd.c b/hw/display/exynos4210_fimd.c
index 4b7286b7c9..3ef8698eb7 100644
--- a/hw/display/exynos4210_fimd.c
+++ b/hw/display/exynos4210_fimd.c
@@ -32,6 +32,7 @@
 #include "qemu/bswap.h"
 #include "qemu/module.h"
 #include "qemu/log.h"
+#include "qom/object.h"
 
 /* Debug messages configuration */
 #define EXYNOS4210_FIMD_DEBUG              0
@@ -293,10 +294,11 @@ struct Exynos4210fimdWindow {
 };
 
 #define TYPE_EXYNOS4210_FIMD "exynos4210.fimd"
-#define EXYNOS4210_FIMD(obj) \
-    OBJECT_CHECK(Exynos4210fimdState, (obj), TYPE_EXYNOS4210_FIMD)
+typedef struct Exynos4210fimdState Exynos4210fimdState;
+DECLARE_INSTANCE_CHECKER(Exynos4210fimdState, EXYNOS4210_FIMD,
+                         TYPE_EXYNOS4210_FIMD)
 
-typedef struct {
+struct Exynos4210fimdState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -325,7 +327,7 @@ typedef struct {
     uint8_t *ifb;           /* Internal frame buffer */
     bool invalidate;        /* Image needs to be redrawn */
     bool enabled;           /* Display controller is enabled */
-} Exynos4210fimdState;
+};
 
 /* Perform byte/halfword/word swap of data according to WINCON */
 static inline void fimd_swap_data(unsigned int swap_ctl, uint64_t *data)
diff --git a/hw/display/g364fb.c b/hw/display/g364fb.c
index adcba96e34..4a32fe4c94 100644
--- a/hw/display/g364fb.c
+++ b/hw/display/g364fb.c
@@ -29,6 +29,7 @@
 #include "trace.h"
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 typedef struct G364State {
     /* hardware */
@@ -486,13 +487,15 @@ static void g364fb_init(DeviceState *dev, G364State *s)
 }
 
 #define TYPE_G364 "sysbus-g364"
-#define G364(obj) OBJECT_CHECK(G364SysBusState, (obj), TYPE_G364)
+typedef struct G364SysBusState G364SysBusState;
+DECLARE_INSTANCE_CHECKER(G364SysBusState, G364,
+                         TYPE_G364)
 
-typedef struct {
+struct G364SysBusState {
     SysBusDevice parent_obj;
 
     G364State g364;
-} G364SysBusState;
+};
 
 static void g364fb_sysbus_realize(DeviceState *dev, Error **errp)
 {
diff --git a/hw/display/jazz_led.c b/hw/display/jazz_led.c
index 1d845597f9..647d05f602 100644
--- a/hw/display/jazz_led.c
+++ b/hw/display/jazz_led.c
@@ -29,22 +29,25 @@
 #include "trace.h"
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 typedef enum {
     REDRAW_NONE = 0, REDRAW_SEGMENTS = 1, REDRAW_BACKGROUND = 2,
 } screen_state_t;
 
 #define TYPE_JAZZ_LED "jazz-led"
-#define JAZZ_LED(obj) OBJECT_CHECK(LedState, (obj), TYPE_JAZZ_LED)
+typedef struct LedState LedState;
+DECLARE_INSTANCE_CHECKER(LedState, JAZZ_LED,
+                         TYPE_JAZZ_LED)
 
-typedef struct LedState {
+struct LedState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     uint8_t segments;
     QemuConsole *con;
     screen_state_t state;
-} LedState;
+};
 
 static uint64_t jazz_led_read(void *opaque, hwaddr addr,
                               unsigned int size)
diff --git a/hw/display/milkymist-tmu2.c b/hw/display/milkymist-tmu2.c
index c34ef1a1bf..8a9e7c23fb 100644
--- a/hw/display/milkymist-tmu2.c
+++ b/hw/display/milkymist-tmu2.c
@@ -38,6 +38,7 @@
 #include <X11/Xlib.h>
 #include <epoxy/gl.h>
 #include <epoxy/glx.h>
+#include "qom/object.h"
 
 enum {
     R_CTL = 0,
@@ -82,8 +83,9 @@ struct vertex {
 } QEMU_PACKED;
 
 #define TYPE_MILKYMIST_TMU2 "milkymist-tmu2"
-#define MILKYMIST_TMU2(obj) \
-    OBJECT_CHECK(MilkymistTMU2State, (obj), TYPE_MILKYMIST_TMU2)
+typedef struct MilkymistTMU2State MilkymistTMU2State;
+DECLARE_INSTANCE_CHECKER(MilkymistTMU2State, MILKYMIST_TMU2,
+                         TYPE_MILKYMIST_TMU2)
 
 struct MilkymistTMU2State {
     SysBusDevice parent_obj;
@@ -98,7 +100,6 @@ struct MilkymistTMU2State {
     GLXFBConfig glx_fb_config;
     GLXContext glx_context;
 };
-typedef struct MilkymistTMU2State MilkymistTMU2State;
 
 static const int glx_fbconfig_attr[] = {
     GLX_GREEN_SIZE, 5,
diff --git a/hw/display/milkymist-vgafb.c b/hw/display/milkymist-vgafb.c
index 6a6441e6ea..2c879129fb 100644
--- a/hw/display/milkymist-vgafb.c
+++ b/hw/display/milkymist-vgafb.c
@@ -32,6 +32,7 @@
 #include "ui/pixel_ops.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define BITS 8
 #include "migration/vmstate.h"
@@ -68,8 +69,9 @@ enum {
 };
 
 #define TYPE_MILKYMIST_VGAFB "milkymist-vgafb"
-#define MILKYMIST_VGAFB(obj) \
-    OBJECT_CHECK(MilkymistVgafbState, (obj), TYPE_MILKYMIST_VGAFB)
+typedef struct MilkymistVgafbState MilkymistVgafbState;
+DECLARE_INSTANCE_CHECKER(MilkymistVgafbState, MILKYMIST_VGAFB,
+                         TYPE_MILKYMIST_VGAFB)
 
 struct MilkymistVgafbState {
     SysBusDevice parent_obj;
@@ -84,7 +86,6 @@ struct MilkymistVgafbState {
 
     uint32_t regs[R_MAX];
 };
-typedef struct MilkymistVgafbState MilkymistVgafbState;
 
 static int vgafb_enabled(MilkymistVgafbState *s)
 {
diff --git a/hw/display/next-fb.c b/hw/display/next-fb.c
index b0513a8fba..94db0202a3 100644
--- a/hw/display/next-fb.c
+++ b/hw/display/next-fb.c
@@ -30,8 +30,11 @@
 #include "framebuffer.h"
 #include "ui/pixel_ops.h"
 #include "hw/m68k/next-cube.h"
+#include "qom/object.h"
 
-#define NEXTFB(obj) OBJECT_CHECK(NeXTFbState, (obj), TYPE_NEXTFB)
+typedef struct NeXTFbState NeXTFbState;
+DECLARE_INSTANCE_CHECKER(NeXTFbState, NEXTFB,
+                         TYPE_NEXTFB)
 
 struct NeXTFbState {
     SysBusDevice parent_obj;
@@ -44,7 +47,6 @@ struct NeXTFbState {
     uint32_t rows;
     int invalidate;
 };
-typedef struct NeXTFbState NeXTFbState;
 
 static void nextfb_draw_line(void *opaque, uint8_t *d, const uint8_t *s,
                              int width, int pitch)
diff --git a/hw/display/pl110.c b/hw/display/pl110.c
index 61fefbffb3..af51a2b9e7 100644
--- a/hw/display/pl110.c
+++ b/hw/display/pl110.c
@@ -17,6 +17,7 @@
 #include "qemu/timer.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define PL110_CR_EN   0x001
 #define PL110_CR_BGR  0x100
@@ -48,9 +49,11 @@ enum pl110_version
 };
 
 #define TYPE_PL110 "pl110"
-#define PL110(obj) OBJECT_CHECK(PL110State, (obj), TYPE_PL110)
+typedef struct PL110State PL110State;
+DECLARE_INSTANCE_CHECKER(PL110State, PL110,
+                         TYPE_PL110)
 
-typedef struct PL110State {
+struct PL110State {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -73,7 +76,7 @@ typedef struct PL110State {
     uint32_t palette[256];
     uint32_t raw_palette[128];
     qemu_irq irq;
-} PL110State;
+};
 
 static int vmstate_pl110_post_load(void *opaque, int version_id);
 
diff --git a/hw/display/qxl.h b/hw/display/qxl.h
index 707631a1f5..714cd01b63 100644
--- a/hw/display/qxl.h
+++ b/hw/display/qxl.h
@@ -8,6 +8,7 @@
 
 #include "ui/qemu-spice.h"
 #include "ui/spice-display.h"
+#include "qom/object.h"
 
 enum qxl_mode {
     QXL_MODE_UNDEFINED,
@@ -27,7 +28,7 @@ enum qxl_mode {
 #define QXL_PAGE_BITS 12
 #define QXL_PAGE_SIZE (1 << QXL_PAGE_BITS);
 
-typedef struct PCIQXLDevice {
+struct PCIQXLDevice {
     PCIDevice          pci;
     PortioList         vga_port_list;
     SimpleSpiceDisplay ssd;
@@ -126,10 +127,12 @@ typedef struct PCIQXLDevice {
     int                num_dirty_rects;
     QXLRect            dirty[QXL_NUM_DIRTY_RECTS];
     QEMUBH            *update_area_bh;
-} PCIQXLDevice;
+};
+typedef struct PCIQXLDevice PCIQXLDevice;
 
 #define TYPE_PCI_QXL "pci-qxl"
-#define PCI_QXL(obj) OBJECT_CHECK(PCIQXLDevice, (obj), TYPE_PCI_QXL)
+DECLARE_INSTANCE_CHECKER(PCIQXLDevice, PCI_QXL,
+                         TYPE_PCI_QXL)
 
 #define PANIC_ON(x) if ((x)) {                         \
     printf("%s: PANIC %s failed\n", __func__, #x); \
diff --git a/hw/display/ramfb-standalone.c b/hw/display/ramfb-standalone.c
index b18db97eeb..8c0094397f 100644
--- a/hw/display/ramfb-standalone.c
+++ b/hw/display/ramfb-standalone.c
@@ -5,14 +5,17 @@
 #include "hw/qdev-properties.h"
 #include "hw/display/ramfb.h"
 #include "ui/console.h"
+#include "qom/object.h"
 
-#define RAMFB(obj) OBJECT_CHECK(RAMFBStandaloneState, (obj), TYPE_RAMFB_DEVICE)
+typedef struct RAMFBStandaloneState RAMFBStandaloneState;
+DECLARE_INSTANCE_CHECKER(RAMFBStandaloneState, RAMFB,
+                         TYPE_RAMFB_DEVICE)
 
-typedef struct RAMFBStandaloneState {
+struct RAMFBStandaloneState {
     SysBusDevice parent_obj;
     QemuConsole *con;
     RAMFBState *state;
-} RAMFBStandaloneState;
+};
 
 static void display_update_wrapper(void *dev)
 {
diff --git a/hw/display/sii9022.c b/hw/display/sii9022.c
index 3b82a8567f..d88166f449 100644
--- a/hw/display/sii9022.c
+++ b/hw/display/sii9022.c
@@ -19,6 +19,7 @@
 #include "migration/vmstate.h"
 #include "hw/display/i2c-ddc.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define SII9022_SYS_CTRL_DATA 0x1a
 #define SII9022_SYS_CTRL_PWR_DWN 0x10
@@ -35,16 +36,18 @@
 #define SII9022_INT_STATUS_PLUGGED 0x04;
 
 #define TYPE_SII9022 "sii9022"
-#define SII9022(obj) OBJECT_CHECK(sii9022_state, (obj), TYPE_SII9022)
+typedef struct sii9022_state sii9022_state;
+DECLARE_INSTANCE_CHECKER(sii9022_state, SII9022,
+                         TYPE_SII9022)
 
-typedef struct sii9022_state {
+struct sii9022_state {
     I2CSlave parent_obj;
     uint8_t ptr;
     bool addr_byte;
     bool ddc_req;
     bool ddc_skip_finish;
     bool ddc;
-} sii9022_state;
+};
 
 static const VMStateDescription vmstate_sii9022 = {
     .name = "sii9022",
diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index 9cccc68c35..51120c6c3e 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -40,6 +40,7 @@
 #include "ui/pixel_ops.h"
 #include "qemu/bswap.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define MMIO_BASE_OFFSET 0x3e00000
 #define MMIO_SIZE 0x200000
@@ -1931,10 +1932,11 @@ static const VMStateDescription vmstate_sm501_state = {
 };
 
 #define TYPE_SYSBUS_SM501 "sysbus-sm501"
-#define SYSBUS_SM501(obj) \
-    OBJECT_CHECK(SM501SysBusState, (obj), TYPE_SYSBUS_SM501)
+typedef struct SM501SysBusState SM501SysBusState;
+DECLARE_INSTANCE_CHECKER(SM501SysBusState, SYSBUS_SM501,
+                         TYPE_SYSBUS_SM501)
 
-typedef struct {
+struct SM501SysBusState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -1942,7 +1944,7 @@ typedef struct {
     uint32_t vram_size;
     uint32_t base;
     SerialMM serial;
-} SM501SysBusState;
+};
 
 static void sm501_realize_sysbus(DeviceState *dev, Error **errp)
 {
@@ -2034,15 +2036,17 @@ static const TypeInfo sm501_sysbus_info = {
 };
 
 #define TYPE_PCI_SM501 "sm501"
-#define PCI_SM501(obj) OBJECT_CHECK(SM501PCIState, (obj), TYPE_PCI_SM501)
+typedef struct SM501PCIState SM501PCIState;
+DECLARE_INSTANCE_CHECKER(SM501PCIState, PCI_SM501,
+                         TYPE_PCI_SM501)
 
-typedef struct {
+struct SM501PCIState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
     SM501State state;
     uint32_t vram_size;
-} SM501PCIState;
+};
 
 static void sm501_realize_pci(PCIDevice *dev, Error **errp)
 {
diff --git a/hw/display/ssd0303.c b/hw/display/ssd0303.c
index 718378f6de..0378573a42 100644
--- a/hw/display/ssd0303.c
+++ b/hw/display/ssd0303.c
@@ -16,6 +16,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "ui/console.h"
+#include "qom/object.h"
 
 //#define DEBUG_SSD0303 1
 
@@ -46,9 +47,11 @@ enum ssd0303_cmd {
 };
 
 #define TYPE_SSD0303 "ssd0303"
-#define SSD0303(obj) OBJECT_CHECK(ssd0303_state, (obj), TYPE_SSD0303)
+typedef struct ssd0303_state ssd0303_state;
+DECLARE_INSTANCE_CHECKER(ssd0303_state, SSD0303,
+                         TYPE_SSD0303)
 
-typedef struct {
+struct ssd0303_state {
     I2CSlave parent_obj;
 
     QemuConsole *con;
@@ -63,7 +66,7 @@ typedef struct {
     enum ssd0303_mode mode;
     enum ssd0303_cmd cmd_state;
     uint8_t framebuffer[132*8];
-} ssd0303_state;
+};
 
 static uint8_t ssd0303_recv(I2CSlave *i2c)
 {
diff --git a/hw/display/ssd0323.c b/hw/display/ssd0323.c
index 32d27f008a..037da81127 100644
--- a/hw/display/ssd0323.c
+++ b/hw/display/ssd0323.c
@@ -16,6 +16,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "ui/console.h"
+#include "qom/object.h"
 
 //#define DEBUG_SSD0323 1
 
@@ -47,7 +48,7 @@ enum ssd0323_mode
     SSD0323_DATA
 };
 
-typedef struct {
+struct ssd0323_state {
     SSISlave ssidev;
     QemuConsole *con;
 
@@ -64,10 +65,12 @@ typedef struct {
     int32_t remap;
     uint32_t mode;
     uint8_t framebuffer[128 * 80 / 2];
-} ssd0323_state;
+};
+typedef struct ssd0323_state ssd0323_state;
 
 #define TYPE_SSD0323 "ssd0323"
-#define SSD0323(obj) OBJECT_CHECK(ssd0323_state, (obj), TYPE_SSD0323)
+DECLARE_INSTANCE_CHECKER(ssd0323_state, SSD0323,
+                         TYPE_SSD0323)
 
 
 static uint32_t ssd0323_transfer(SSISlave *dev, uint32_t data)
diff --git a/hw/display/tcx.c b/hw/display/tcx.c
index 1fb45b1aab..69e901a800 100644
--- a/hw/display/tcx.c
+++ b/hw/display/tcx.c
@@ -33,6 +33,7 @@
 #include "migration/vmstate.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TCX_ROM_FILE "QEMU,tcx.bin"
 #define FCODE_MAX_ROM_SIZE 0x10000
@@ -55,9 +56,11 @@
 #define TCX_THC_CURSBITS 0x980
 
 #define TYPE_TCX "SUNW,tcx"
-#define TCX(obj) OBJECT_CHECK(TCXState, (obj), TYPE_TCX)
+typedef struct TCXState TCXState;
+DECLARE_INSTANCE_CHECKER(TCXState, TCX,
+                         TYPE_TCX)
 
-typedef struct TCXState {
+struct TCXState {
     SysBusDevice parent_obj;
 
     QemuConsole *con;
@@ -93,7 +96,7 @@ typedef struct TCXState {
     uint32_t cursbits[32];
     uint16_t cursx;
     uint16_t cursy;
-} TCXState;
+};
 
 static void tcx_set_dirty(TCXState *s, ram_addr_t addr, int len)
 {
diff --git a/hw/display/vga-isa.c b/hw/display/vga-isa.c
index 3aaeeeca1e..0ebfcca9d1 100644
--- a/hw/display/vga-isa.c
+++ b/hw/display/vga-isa.c
@@ -32,17 +32,20 @@
 #include "qemu/timer.h"
 #include "hw/loader.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define TYPE_ISA_VGA "isa-vga"
-#define ISA_VGA(obj) OBJECT_CHECK(ISAVGAState, (obj), TYPE_ISA_VGA)
+typedef struct ISAVGAState ISAVGAState;
+DECLARE_INSTANCE_CHECKER(ISAVGAState, ISA_VGA,
+                         TYPE_ISA_VGA)
 
-typedef struct ISAVGAState {
+struct ISAVGAState {
     ISADevice parent_obj;
 
     struct VGACommonState state;
     PortioList portio_vga;
     PortioList portio_vbe;
-} ISAVGAState;
+};
 
 static void vga_isa_reset(DeviceState *dev)
 {
diff --git a/hw/display/vga-pci.c b/hw/display/vga-pci.c
index a640fd866d..3b45fa3bad 100644
--- a/hw/display/vga-pci.c
+++ b/hw/display/vga-pci.c
@@ -34,6 +34,7 @@
 #include "qemu/timer.h"
 #include "hw/loader.h"
 #include "hw/display/edid.h"
+#include "qom/object.h"
 
 enum vga_pci_flags {
     PCI_VGA_FLAG_ENABLE_MMIO = 1,
@@ -41,7 +42,7 @@ enum vga_pci_flags {
     PCI_VGA_FLAG_ENABLE_EDID = 3,
 };
 
-typedef struct PCIVGAState {
+struct PCIVGAState {
     PCIDevice dev;
     VGACommonState vga;
     uint32_t flags;
@@ -49,10 +50,12 @@ typedef struct PCIVGAState {
     MemoryRegion mmio;
     MemoryRegion mrs[4];
     uint8_t edid[256];
-} PCIVGAState;
+};
+typedef struct PCIVGAState PCIVGAState;
 
 #define TYPE_PCI_VGA "pci-vga"
-#define PCI_VGA(obj) OBJECT_CHECK(PCIVGAState, (obj), TYPE_PCI_VGA)
+DECLARE_INSTANCE_CHECKER(PCIVGAState, PCI_VGA,
+                         TYPE_PCI_VGA)
 
 static const VMStateDescription vmstate_vga_pci = {
     .name = "vga",
diff --git a/hw/display/vhost-user-gpu-pci.c b/hw/display/vhost-user-gpu-pci.c
index 23ce655e0f..a02b23ecaf 100644
--- a/hw/display/vhost-user-gpu-pci.c
+++ b/hw/display/vhost-user-gpu-pci.c
@@ -11,16 +11,18 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "hw/virtio/virtio-gpu-pci.h"
+#include "qom/object.h"
 
 #define TYPE_VHOST_USER_GPU_PCI "vhost-user-gpu-pci"
-#define VHOST_USER_GPU_PCI(obj)                                     \
-    OBJECT_CHECK(VhostUserGPUPCI, (obj), TYPE_VHOST_USER_GPU_PCI)
+typedef struct VhostUserGPUPCI VhostUserGPUPCI;
+DECLARE_INSTANCE_CHECKER(VhostUserGPUPCI, VHOST_USER_GPU_PCI,
+                         TYPE_VHOST_USER_GPU_PCI)
 
-typedef struct VhostUserGPUPCI {
+struct VhostUserGPUPCI {
     VirtIOGPUPCIBase parent_obj;
 
     VhostUserGPU vdev;
-} VhostUserGPUPCI;
+};
 
 static void vhost_user_gpu_pci_initfn(Object *obj)
 {
diff --git a/hw/display/vhost-user-vga.c b/hw/display/vhost-user-vga.c
index 1690f6b610..a34a99856d 100644
--- a/hw/display/vhost-user-vga.c
+++ b/hw/display/vhost-user-vga.c
@@ -11,17 +11,19 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "virtio-vga.h"
+#include "qom/object.h"
 
 #define TYPE_VHOST_USER_VGA "vhost-user-vga"
 
-#define VHOST_USER_VGA(obj)                                \
-    OBJECT_CHECK(VhostUserVGA, (obj), TYPE_VHOST_USER_VGA)
+typedef struct VhostUserVGA VhostUserVGA;
+DECLARE_INSTANCE_CHECKER(VhostUserVGA, VHOST_USER_VGA,
+                         TYPE_VHOST_USER_VGA)
 
-typedef struct VhostUserVGA {
+struct VhostUserVGA {
     VirtIOVGABase parent_obj;
 
     VhostUserGPU vdev;
-} VhostUserVGA;
+};
 
 static void vhost_user_vga_inst_initfn(Object *obj)
 {
@@ -39,7 +41,7 @@ static void vhost_user_vga_inst_initfn(Object *obj)
 static const VirtioPCIDeviceTypeInfo vhost_user_vga_info = {
     .generic_name  = TYPE_VHOST_USER_VGA,
     .parent        = TYPE_VIRTIO_VGA_BASE,
-    .instance_size = sizeof(struct VhostUserVGA),
+    .instance_size = sizeof(VhostUserVGA),
     .instance_init = vhost_user_vga_inst_initfn,
 };
 
diff --git a/hw/display/virtio-gpu-pci.c b/hw/display/virtio-gpu-pci.c
index 34d8e93f28..d742a30aec 100644
--- a/hw/display/virtio-gpu-pci.c
+++ b/hw/display/virtio-gpu-pci.c
@@ -19,6 +19,7 @@
 #include "hw/virtio/virtio.h"
 #include "hw/virtio/virtio-bus.h"
 #include "hw/virtio/virtio-gpu-pci.h"
+#include "qom/object.h"
 
 static Property virtio_gpu_pci_base_properties[] = {
     DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
@@ -65,13 +66,14 @@ static const TypeInfo virtio_gpu_pci_base_info = {
 };
 
 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci"
-#define VIRTIO_GPU_PCI(obj)                                 \
-    OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI)
+typedef struct VirtIOGPUPCI VirtIOGPUPCI;
+DECLARE_INSTANCE_CHECKER(VirtIOGPUPCI, VIRTIO_GPU_PCI,
+                         TYPE_VIRTIO_GPU_PCI)
 
-typedef struct VirtIOGPUPCI {
+struct VirtIOGPUPCI {
     VirtIOGPUPCIBase parent_obj;
     VirtIOGPU vdev;
-} VirtIOGPUPCI;
+};
 
 static void virtio_gpu_initfn(Object *obj)
 {
diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index f533d7d1b4..573e7d5928 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -5,6 +5,7 @@
 #include "qapi/error.h"
 #include "qemu/module.h"
 #include "virtio-vga.h"
+#include "qom/object.h"
 
 static void virtio_vga_base_invalidate_display(void *opaque)
 {
@@ -194,22 +195,23 @@ static void virtio_vga_base_class_init(ObjectClass *klass, void *data)
 static TypeInfo virtio_vga_base_info = {
     .name          = TYPE_VIRTIO_VGA_BASE,
     .parent        = TYPE_VIRTIO_PCI,
-    .instance_size = sizeof(struct VirtIOVGABase),
-    .class_size    = sizeof(struct VirtIOVGABaseClass),
+    .instance_size = sizeof(VirtIOVGABase),
+    .class_size    = sizeof(VirtIOVGABaseClass),
     .class_init    = virtio_vga_base_class_init,
     .abstract      = true,
 };
 
 #define TYPE_VIRTIO_VGA "virtio-vga"
 
-#define VIRTIO_VGA(obj)                             \
-    OBJECT_CHECK(VirtIOVGA, (obj), TYPE_VIRTIO_VGA)
+typedef struct VirtIOVGA VirtIOVGA;
+DECLARE_INSTANCE_CHECKER(VirtIOVGA, VIRTIO_VGA,
+                         TYPE_VIRTIO_VGA)
 
-typedef struct VirtIOVGA {
+struct VirtIOVGA {
     VirtIOVGABase parent_obj;
 
     VirtIOGPU     vdev;
-} VirtIOVGA;
+};
 
 static void virtio_vga_inst_initfn(Object *obj)
 {
@@ -224,7 +226,7 @@ static void virtio_vga_inst_initfn(Object *obj)
 static VirtioPCIDeviceTypeInfo virtio_vga_info = {
     .generic_name  = TYPE_VIRTIO_VGA,
     .parent        = TYPE_VIRTIO_VGA_BASE,
-    .instance_size = sizeof(struct VirtIOVGA),
+    .instance_size = sizeof(VirtIOVGA),
     .instance_init = virtio_vga_inst_initfn,
 };
 
diff --git a/hw/display/virtio-vga.h b/hw/display/virtio-vga.h
index c41281a010..5c5671c9c1 100644
--- a/hw/display/virtio-vga.h
+++ b/hw/display/virtio-vga.h
@@ -3,30 +3,27 @@
 
 #include "hw/virtio/virtio-gpu-pci.h"
 #include "vga_int.h"
+#include "qom/object.h"
 
 /*
  * virtio-vga-base: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_VGA_BASE "virtio-vga-base"
-#define VIRTIO_VGA_BASE(obj)                                \
-    OBJECT_CHECK(VirtIOVGABase, (obj), TYPE_VIRTIO_VGA_BASE)
-#define VIRTIO_VGA_BASE_GET_CLASS(obj)                      \
-    OBJECT_GET_CLASS(VirtIOVGABaseClass, obj, TYPE_VIRTIO_VGA_BASE)
-#define VIRTIO_VGA_BASE_CLASS(klass)                        \
-    OBJECT_CLASS_CHECK(VirtIOVGABaseClass, klass, TYPE_VIRTIO_VGA_BASE)
+OBJECT_DECLARE_TYPE(VirtIOVGABase, VirtIOVGABaseClass,
+                    virtio_vga_base, VIRTIO_VGA_BASE)
 
-typedef struct VirtIOVGABase {
+struct VirtIOVGABase {
     VirtIOPCIProxy parent_obj;
 
     VirtIOGPUBase *vgpu;
     VGACommonState vga;
     MemoryRegion vga_mrs[3];
-} VirtIOVGABase;
+};
 
-typedef struct VirtIOVGABaseClass {
+struct VirtIOVGABaseClass {
     VirtioPCIClass parent_class;
 
     DeviceReset parent_reset;
-} VirtIOVGABaseClass;
+};
 
 #endif /* VIRTIO_VGA_H */
diff --git a/hw/display/vmware_vga.c b/hw/display/vmware_vga.c
index 2579f6b218..bef0d7d69a 100644
--- a/hw/display/vmware_vga.c
+++ b/hw/display/vmware_vga.c
@@ -33,6 +33,7 @@
 #include "hw/pci/pci.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #undef VERBOSE
 #define HW_RECT_ACCEL
@@ -85,8 +86,8 @@ struct vmsvga_state_s {
 
 #define TYPE_VMWARE_SVGA "vmware-svga"
 
-#define VMWARE_SVGA(obj) \
-    OBJECT_CHECK(struct pci_vmsvga_state_s, (obj), TYPE_VMWARE_SVGA)
+DECLARE_INSTANCE_CHECKER(struct pci_vmsvga_state_s, VMWARE_SVGA,
+                         TYPE_VMWARE_SVGA)
 
 struct pci_vmsvga_state_s {
     /*< private >*/
diff --git a/hw/dma/i82374.c b/hw/dma/i82374.c
index 6977d85ef8..5b7ff635f7 100644
--- a/hw/dma/i82374.c
+++ b/hw/dma/i82374.c
@@ -29,9 +29,12 @@
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
 #include "hw/dma/i8257.h"
+#include "qom/object.h"
 
 #define TYPE_I82374 "i82374"
-#define I82374(obj) OBJECT_CHECK(I82374State, (obj), TYPE_I82374)
+typedef struct I82374State I82374State;
+DECLARE_INSTANCE_CHECKER(I82374State, I82374,
+                         TYPE_I82374)
 
 //#define DEBUG_I82374
 
@@ -45,13 +48,13 @@ do {} while (0)
 #define BADF(fmt, ...) \
 do { fprintf(stderr, "i82374 ERROR: " fmt , ## __VA_ARGS__); } while (0)
 
-typedef struct I82374State {
+struct I82374State {
     ISADevice parent_obj;
 
     uint32_t iobase;
     uint8_t commands[8];
     PortioList port_list;
-} I82374State;
+};
 
 static const VMStateDescription vmstate_i82374 = {
     .name = "i82374",
diff --git a/hw/dma/pl330.c b/hw/dma/pl330.c
index 0bd63a43f5..859586fd2f 100644
--- a/hw/dma/pl330.c
+++ b/hw/dma/pl330.c
@@ -26,6 +26,7 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #ifndef PL330_ERR_DEBUG
 #define PL330_ERR_DEBUG 0
@@ -271,7 +272,8 @@ struct PL330State {
 };
 
 #define TYPE_PL330 "pl330"
-#define PL330(obj) OBJECT_CHECK(PL330State, (obj), TYPE_PL330)
+DECLARE_INSTANCE_CHECKER(PL330State, PL330,
+                         TYPE_PL330)
 
 static const VMStateDescription vmstate_pl330 = {
     .name = "pl330",
diff --git a/hw/dma/puv3_dma.c b/hw/dma/puv3_dma.c
index 7fa979180f..825e3dc0ac 100644
--- a/hw/dma/puv3_dma.c
+++ b/hw/dma/puv3_dma.c
@@ -11,6 +11,7 @@
 
 #include "qemu/osdep.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
 #undef DEBUG_PUV3
 #include "hw/unicore32/puv3.h"
@@ -22,14 +23,16 @@
 #define PUV3_DMA_CH(offset)     ((offset) >> 8)
 
 #define TYPE_PUV3_DMA "puv3_dma"
-#define PUV3_DMA(obj) OBJECT_CHECK(PUV3DMAState, (obj), TYPE_PUV3_DMA)
+typedef struct PUV3DMAState PUV3DMAState;
+DECLARE_INSTANCE_CHECKER(PUV3DMAState, PUV3_DMA,
+                         TYPE_PUV3_DMA)
 
-typedef struct PUV3DMAState {
+struct PUV3DMAState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     uint32_t reg_CFG[PUV3_DMA_CH_NR];
-} PUV3DMAState;
+};
 
 static uint64_t puv3_dma_read(void *opaque, hwaddr offset,
         unsigned size)
diff --git a/hw/dma/pxa2xx_dma.c b/hw/dma/pxa2xx_dma.c
index 78b2849bcb..4f6c0e5e5e 100644
--- a/hw/dma/pxa2xx_dma.c
+++ b/hw/dma/pxa2xx_dma.c
@@ -18,6 +18,7 @@
 #include "migration/vmstate.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define PXA255_DMA_NUM_CHANNELS 16
 #define PXA27X_DMA_NUM_CHANNELS 32
@@ -34,9 +35,11 @@ typedef struct {
 } PXA2xxDMAChannel;
 
 #define TYPE_PXA2XX_DMA "pxa2xx-dma"
-#define PXA2XX_DMA(obj) OBJECT_CHECK(PXA2xxDMAState, (obj), TYPE_PXA2XX_DMA)
+typedef struct PXA2xxDMAState PXA2xxDMAState;
+DECLARE_INSTANCE_CHECKER(PXA2xxDMAState, PXA2XX_DMA,
+                         TYPE_PXA2XX_DMA)
 
-typedef struct PXA2xxDMAState {
+struct PXA2xxDMAState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -58,7 +61,7 @@ typedef struct PXA2xxDMAState {
 
     /* Flag to avoid recursive DMA invocations.  */
     int running;
-} PXA2xxDMAState;
+};
 
 #define DCSR0	0x0000	/* DMA Control / Status register for Channel 0 */
 #define DCSR31	0x007c	/* DMA Control / Status register for Channel 31 */
diff --git a/hw/dma/rc4030.c b/hw/dma/rc4030.c
index 7eddc9a776..c584815d06 100644
--- a/hw/dma/rc4030.c
+++ b/hw/dma/rc4030.c
@@ -34,6 +34,7 @@
 #include "qemu/module.h"
 #include "exec/address-spaces.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /********************************************************/
 /* rc4030 emulation                                     */
@@ -55,12 +56,13 @@ typedef struct dma_pagetable_entry {
 #define DMA_FLAG_ADDR_INTR  0x0400
 
 #define TYPE_RC4030 "rc4030"
-#define RC4030(obj) \
-    OBJECT_CHECK(rc4030State, (obj), TYPE_RC4030)
+typedef struct rc4030State rc4030State;
+DECLARE_INSTANCE_CHECKER(rc4030State, RC4030,
+                         TYPE_RC4030)
 
 #define TYPE_RC4030_IOMMU_MEMORY_REGION "rc4030-iommu-memory-region"
 
-typedef struct rc4030State {
+struct rc4030State {
 
     SysBusDevice parent;
 
@@ -101,7 +103,7 @@ typedef struct rc4030State {
 
     MemoryRegion iomem_chipset;
     MemoryRegion iomem_jazzio;
-} rc4030State;
+};
 
 static void set_next_tick(rc4030State *s)
 {
diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c
index bcd1626fbd..d20a5bc065 100644
--- a/hw/dma/sparc32_dma.c
+++ b/hw/dma/sparc32_dma.c
@@ -303,7 +303,7 @@ static void sparc32_espdma_device_realize(DeviceState *dev, Error **errp)
 
     d = qdev_new(TYPE_ESP);
     object_property_add_child(OBJECT(dev), "esp", OBJECT(d));
-    sysbus = ESP_STATE(d);
+    sysbus = ESP(d);
     esp = &sysbus->esp;
     esp->dma_memory_read = espdma_memory_read;
     esp->dma_memory_write = espdma_memory_write;
diff --git a/hw/dma/xilinx_axidma.c b/hw/dma/xilinx_axidma.c
index a4812e480a..498fc17d8a 100644
--- a/hw/dma/xilinx_axidma.c
+++ b/hw/dma/xilinx_axidma.c
@@ -35,6 +35,7 @@
 
 #include "sysemu/dma.h"
 #include "hw/stream.h"
+#include "qom/object.h"
 
 #define D(x)
 
@@ -42,16 +43,16 @@
 #define TYPE_XILINX_AXI_DMA_DATA_STREAM "xilinx-axi-dma-data-stream"
 #define TYPE_XILINX_AXI_DMA_CONTROL_STREAM "xilinx-axi-dma-control-stream"
 
-#define XILINX_AXI_DMA(obj) \
-     OBJECT_CHECK(XilinxAXIDMA, (obj), TYPE_XILINX_AXI_DMA)
+typedef struct XilinxAXIDMA XilinxAXIDMA;
+DECLARE_INSTANCE_CHECKER(XilinxAXIDMA, XILINX_AXI_DMA,
+                         TYPE_XILINX_AXI_DMA)
 
-#define XILINX_AXI_DMA_DATA_STREAM(obj) \
-     OBJECT_CHECK(XilinxAXIDMAStreamSlave, (obj),\
-     TYPE_XILINX_AXI_DMA_DATA_STREAM)
+typedef struct XilinxAXIDMAStreamSlave XilinxAXIDMAStreamSlave;
+DECLARE_INSTANCE_CHECKER(XilinxAXIDMAStreamSlave, XILINX_AXI_DMA_DATA_STREAM,
+                         TYPE_XILINX_AXI_DMA_DATA_STREAM)
 
-#define XILINX_AXI_DMA_CONTROL_STREAM(obj) \
-     OBJECT_CHECK(XilinxAXIDMAStreamSlave, (obj),\
-     TYPE_XILINX_AXI_DMA_CONTROL_STREAM)
+DECLARE_INSTANCE_CHECKER(XilinxAXIDMAStreamSlave, XILINX_AXI_DMA_CONTROL_STREAM,
+                         TYPE_XILINX_AXI_DMA_CONTROL_STREAM)
 
 #define R_DMACR             (0x00 / 4)
 #define R_DMASR             (0x04 / 4)
@@ -62,8 +63,6 @@
 #define CONTROL_PAYLOAD_WORDS 5
 #define CONTROL_PAYLOAD_SIZE (CONTROL_PAYLOAD_WORDS * (sizeof(uint32_t)))
 
-typedef struct XilinxAXIDMA XilinxAXIDMA;
-typedef struct XilinxAXIDMAStreamSlave XilinxAXIDMAStreamSlave;
 
 enum {
     DMACR_RUNSTOP = 1,
@@ -634,7 +633,7 @@ static const TypeInfo axidma_info = {
 static const TypeInfo xilinx_axidma_data_stream_info = {
     .name          = TYPE_XILINX_AXI_DMA_DATA_STREAM,
     .parent        = TYPE_OBJECT,
-    .instance_size = sizeof(struct XilinxAXIDMAStreamSlave),
+    .instance_size = sizeof(XilinxAXIDMAStreamSlave),
     .class_init    = xilinx_axidma_stream_class_init,
     .class_data    = &xilinx_axidma_data_stream_class,
     .interfaces = (InterfaceInfo[]) {
@@ -646,7 +645,7 @@ static const TypeInfo xilinx_axidma_data_stream_info = {
 static const TypeInfo xilinx_axidma_control_stream_info = {
     .name          = TYPE_XILINX_AXI_DMA_CONTROL_STREAM,
     .parent        = TYPE_OBJECT,
-    .instance_size = sizeof(struct XilinxAXIDMAStreamSlave),
+    .instance_size = sizeof(XilinxAXIDMAStreamSlave),
     .class_init    = xilinx_axidma_stream_class_init,
     .class_data    = &xilinx_axidma_control_stream_class,
     .interfaces = (InterfaceInfo[]) {
diff --git a/hw/gpio/gpio_key.c b/hw/gpio/gpio_key.c
index 46bbd42772..86aa78aae4 100644
--- a/hw/gpio/gpio_key.c
+++ b/hw/gpio/gpio_key.c
@@ -28,17 +28,20 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "qemu/timer.h"
+#include "qom/object.h"
 
 #define TYPE_GPIOKEY "gpio-key"
-#define GPIOKEY(obj) OBJECT_CHECK(GPIOKEYState, (obj), TYPE_GPIOKEY)
+typedef struct GPIOKEYState GPIOKEYState;
+DECLARE_INSTANCE_CHECKER(GPIOKEYState, GPIOKEY,
+                         TYPE_GPIOKEY)
 #define GPIO_KEY_LATENCY 100 /* 100ms */
 
-typedef struct GPIOKEYState {
+struct GPIOKEYState {
     SysBusDevice parent_obj;
 
     QEMUTimer *timer;
     qemu_irq irq;
-} GPIOKEYState;
+};
 
 static const VMStateDescription vmstate_gpio_key = {
     .name = "gpio-key",
diff --git a/hw/gpio/max7310.c b/hw/gpio/max7310.c
index 4f78774dc8..5511047f35 100644
--- a/hw/gpio/max7310.c
+++ b/hw/gpio/max7310.c
@@ -14,11 +14,14 @@
 #include "hw/irq.h"
 #include "migration/vmstate.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TYPE_MAX7310 "max7310"
-#define MAX7310(obj) OBJECT_CHECK(MAX7310State, (obj), TYPE_MAX7310)
+typedef struct MAX7310State MAX7310State;
+DECLARE_INSTANCE_CHECKER(MAX7310State, MAX7310,
+                         TYPE_MAX7310)
 
-typedef struct MAX7310State {
+struct MAX7310State {
     I2CSlave parent_obj;
 
     int i2c_command_byte;
@@ -31,7 +34,7 @@ typedef struct MAX7310State {
     uint8_t command;
     qemu_irq handler[8];
     qemu_irq *gpio_in;
-} MAX7310State;
+};
 
 static void max7310_reset(DeviceState *dev)
 {
diff --git a/hw/gpio/mpc8xxx.c b/hw/gpio/mpc8xxx.c
index 1d99667094..dac8b1be38 100644
--- a/hw/gpio/mpc8xxx.c
+++ b/hw/gpio/mpc8xxx.c
@@ -24,11 +24,14 @@
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TYPE_MPC8XXX_GPIO "mpc8xxx_gpio"
-#define MPC8XXX_GPIO(obj) OBJECT_CHECK(MPC8XXXGPIOState, (obj), TYPE_MPC8XXX_GPIO)
+typedef struct MPC8XXXGPIOState MPC8XXXGPIOState;
+DECLARE_INSTANCE_CHECKER(MPC8XXXGPIOState, MPC8XXX_GPIO,
+                         TYPE_MPC8XXX_GPIO)
 
-typedef struct MPC8XXXGPIOState {
+struct MPC8XXXGPIOState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -41,7 +44,7 @@ typedef struct MPC8XXXGPIOState {
     uint32_t ier;
     uint32_t imr;
     uint32_t icr;
-} MPC8XXXGPIOState;
+};
 
 static const VMStateDescription vmstate_mpc8xxx_gpio = {
     .name = "mpc8xxx_gpio",
diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c
index 6d3c36bc16..3420df0d1f 100644
--- a/hw/gpio/pl061.c
+++ b/hw/gpio/pl061.c
@@ -14,6 +14,7 @@
 #include "migration/vmstate.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 //#define DEBUG_PL061 1
 
@@ -34,11 +35,13 @@ static const uint8_t pl061_id_luminary[12] =
   { 0x00, 0x00, 0x00, 0x00, 0x61, 0x00, 0x18, 0x01, 0x0d, 0xf0, 0x05, 0xb1 };
 
 #define TYPE_PL061 "pl061"
-#define PL061(obj) OBJECT_CHECK(PL061State, (obj), TYPE_PL061)
+typedef struct PL061State PL061State;
+DECLARE_INSTANCE_CHECKER(PL061State, PL061,
+                         TYPE_PL061)
 
 #define N_GPIOS 8
 
-typedef struct PL061State {
+struct PL061State {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -67,7 +70,7 @@ typedef struct PL061State {
     qemu_irq out[N_GPIOS];
     const unsigned char *id;
     uint32_t rsvd_start; /* reserved area: [rsvd_start, 0xfcc] */
-} PL061State;
+};
 
 static const VMStateDescription vmstate_pl061 = {
     .name = "pl061",
diff --git a/hw/gpio/puv3_gpio.c b/hw/gpio/puv3_gpio.c
index 7362b6715f..98ea2b4c2e 100644
--- a/hw/gpio/puv3_gpio.c
+++ b/hw/gpio/puv3_gpio.c
@@ -11,6 +11,7 @@
 
 #include "qemu/osdep.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
 #undef DEBUG_PUV3
 #include "hw/unicore32/puv3.h"
@@ -18,9 +19,11 @@
 #include "qemu/log.h"
 
 #define TYPE_PUV3_GPIO "puv3_gpio"
-#define PUV3_GPIO(obj) OBJECT_CHECK(PUV3GPIOState, (obj), TYPE_PUV3_GPIO)
+typedef struct PUV3GPIOState PUV3GPIOState;
+DECLARE_INSTANCE_CHECKER(PUV3GPIOState, PUV3_GPIO,
+                         TYPE_PUV3_GPIO)
 
-typedef struct PUV3GPIOState {
+struct PUV3GPIOState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -29,7 +32,7 @@ typedef struct PUV3GPIOState {
     uint32_t reg_GPLR;
     uint32_t reg_GPDR;
     uint32_t reg_GPIR;
-} PUV3GPIOState;
+};
 
 static uint64_t puv3_gpio_read(void *opaque, hwaddr offset,
         unsigned size)
diff --git a/hw/gpio/zaurus.c b/hw/gpio/zaurus.c
index 258e926493..3d25c55d06 100644
--- a/hw/gpio/zaurus.c
+++ b/hw/gpio/zaurus.c
@@ -23,13 +23,15 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "qemu/log.h"
+#include "qom/object.h"
 
 /* SCOOP devices */
 
 #define TYPE_SCOOP "scoop"
-#define SCOOP(obj) OBJECT_CHECK(ScoopInfo, (obj), TYPE_SCOOP)
-
 typedef struct ScoopInfo ScoopInfo;
+DECLARE_INSTANCE_CHECKER(ScoopInfo, SCOOP,
+                         TYPE_SCOOP)
+
 struct ScoopInfo {
     SysBusDevice parent_obj;
 
diff --git a/hw/hppa/dino.c b/hw/hppa/dino.c
index 7f0c6223a8..c0c9b8a2b8 100644
--- a/hw/hppa/dino.c
+++ b/hw/hppa/dino.c
@@ -22,6 +22,7 @@
 #include "hppa_sys.h"
 #include "exec/address-spaces.h"
 #include "trace.h"
+#include "qom/object.h"
 
 
 #define TYPE_DINO_PCI_HOST_BRIDGE "dino-pcihost"
@@ -80,8 +81,9 @@
 
 #define DINO_MEM_CHUNK_SIZE (8 * MiB)
 
-#define DINO_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(DinoState, (obj), TYPE_DINO_PCI_HOST_BRIDGE)
+typedef struct DinoState DinoState;
+DECLARE_INSTANCE_CHECKER(DinoState, DINO_PCI_HOST_BRIDGE,
+                         TYPE_DINO_PCI_HOST_BRIDGE)
 
 #define DINO800_REGS (1 + (DINO_TLTIM - DINO_GMASK) / 4)
 static const uint32_t reg800_keep_bits[DINO800_REGS] = {
@@ -100,7 +102,7 @@ static const uint32_t reg800_keep_bits[DINO800_REGS] = {
     MAKE_64BIT_MASK(0, 9),  /* TLTIM */
 };
 
-typedef struct DinoState {
+struct DinoState {
     PCIHostState parent_obj;
 
     /* PCI_CONFIG_ADDR is parent_obj.config_reg, via pci_host_conf_be_ops,
@@ -129,7 +131,7 @@ typedef struct DinoState {
     MemoryRegion bm_ram_alias;
     MemoryRegion bm_pci_alias;
     MemoryRegion bm_cpu_alias;
-} DinoState;
+};
 
 /*
  * Dino can forward memory accesses from the CPU in the range between
diff --git a/hw/hppa/lasi.c b/hw/hppa/lasi.c
index 194aa3e619..c0b970f55c 100644
--- a/hw/hppa/lasi.c
+++ b/hw/hppa/lasi.c
@@ -26,6 +26,7 @@
 #include "hw/input/lasips2.h"
 #include "exec/address-spaces.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #define TYPE_LASI_CHIP "lasi-chip"
 
@@ -52,10 +53,11 @@
 #define ICR_BUS_ERROR_BIT  LASI_BIT(8)  /* bit 8 in ICR */
 #define ICR_TOC_BIT        LASI_BIT(1)  /* bit 1 in ICR */
 
-#define LASI_CHIP(obj) \
-    OBJECT_CHECK(LasiState, (obj), TYPE_LASI_CHIP)
+typedef struct LasiState LasiState;
+DECLARE_INSTANCE_CHECKER(LasiState, LASI_CHIP,
+                         TYPE_LASI_CHIP)
 
-typedef struct LasiState {
+struct LasiState {
     PCIHostState parent_obj;
 
     uint32_t irr;
@@ -70,7 +72,7 @@ typedef struct LasiState {
     time_t rtc_ref;
 
     MemoryRegion this_mem;
-} LasiState;
+};
 
 static bool lasi_chip_mem_valid(void *opaque, hwaddr addr,
                                 unsigned size, bool is_write,
diff --git a/hw/hyperv/hyperv.c b/hw/hyperv/hyperv.c
index 844d00776d..aa5a2a9bd8 100644
--- a/hw/hyperv/hyperv.c
+++ b/hw/hyperv/hyperv.c
@@ -20,8 +20,9 @@
 #include "qemu/rcu.h"
 #include "qemu/rcu_queue.h"
 #include "hw/hyperv/hyperv.h"
+#include "qom/object.h"
 
-typedef struct SynICState {
+struct SynICState {
     DeviceState parent_obj;
 
     CPUState *cs;
@@ -33,10 +34,12 @@ typedef struct SynICState {
     MemoryRegion event_page_mr;
     struct hyperv_message_page *msg_page;
     struct hyperv_event_flags_page *event_page;
-} SynICState;
+};
+typedef struct SynICState SynICState;
 
 #define TYPE_SYNIC "hyperv-synic"
-#define SYNIC(obj) OBJECT_CHECK(SynICState, (obj), TYPE_SYNIC)
+DECLARE_INSTANCE_CHECKER(SynICState, SYNIC,
+                         TYPE_SYNIC)
 
 static bool synic_enabled;
 
diff --git a/hw/hyperv/hyperv_testdev.c b/hw/hyperv/hyperv_testdev.c
index 88a5a63782..f6ee98e00c 100644
--- a/hw/hyperv/hyperv_testdev.c
+++ b/hw/hyperv/hyperv_testdev.c
@@ -17,6 +17,7 @@
 #include "qemu/queue.h"
 #include "hw/isa/isa.h"
 #include "hw/hyperv/hyperv.h"
+#include "qom/object.h"
 
 typedef struct TestSintRoute {
     QLIST_ENTRY(TestSintRoute) le;
@@ -49,8 +50,8 @@ struct HypervTestDev {
 typedef struct HypervTestDev HypervTestDev;
 
 #define TYPE_HYPERV_TEST_DEV "hyperv-testdev"
-#define HYPERV_TEST_DEV(obj) \
-        OBJECT_CHECK(HypervTestDev, (obj), TYPE_HYPERV_TEST_DEV)
+DECLARE_INSTANCE_CHECKER(HypervTestDev, HYPERV_TEST_DEV,
+                         TYPE_HYPERV_TEST_DEV)
 
 enum {
     HV_TEST_DEV_SINT_ROUTE_CREATE = 1,
diff --git a/hw/i2c/bitbang_i2c.c b/hw/i2c/bitbang_i2c.c
index b000952b98..c1b9f298d9 100644
--- a/hw/i2c/bitbang_i2c.c
+++ b/hw/i2c/bitbang_i2c.c
@@ -15,6 +15,7 @@
 #include "hw/i2c/bitbang_i2c.h"
 #include "hw/sysbus.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 //#define DEBUG_BITBANG_I2C
 
@@ -162,16 +163,18 @@ void bitbang_i2c_init(bitbang_i2c_interface *s, I2CBus *bus)
 /* GPIO interface.  */
 
 #define TYPE_GPIO_I2C "gpio_i2c"
-#define GPIO_I2C(obj) OBJECT_CHECK(GPIOI2CState, (obj), TYPE_GPIO_I2C)
+typedef struct GPIOI2CState GPIOI2CState;
+DECLARE_INSTANCE_CHECKER(GPIOI2CState, GPIO_I2C,
+                         TYPE_GPIO_I2C)
 
-typedef struct GPIOI2CState {
+struct GPIOI2CState {
     SysBusDevice parent_obj;
 
     MemoryRegion dummy_iomem;
     bitbang_i2c_interface bitbang;
     int last_level;
     qemu_irq out;
-} GPIOI2CState;
+};
 
 static void bitbang_i2c_gpio_set(void *opaque, int irq, int level)
 {
diff --git a/hw/i2c/exynos4210_i2c.c b/hw/i2c/exynos4210_i2c.c
index a600f65560..ff82226e9f 100644
--- a/hw/i2c/exynos4210_i2c.c
+++ b/hw/i2c/exynos4210_i2c.c
@@ -27,14 +27,16 @@
 #include "migration/vmstate.h"
 #include "hw/i2c/i2c.h"
 #include "hw/irq.h"
+#include "qom/object.h"
 
 #ifndef EXYNOS4_I2C_DEBUG
 #define EXYNOS4_I2C_DEBUG                 0
 #endif
 
 #define TYPE_EXYNOS4_I2C                  "exynos4210.i2c"
-#define EXYNOS4_I2C(obj)                  \
-    OBJECT_CHECK(Exynos4210I2CState, (obj), TYPE_EXYNOS4_I2C)
+typedef struct Exynos4210I2CState Exynos4210I2CState;
+DECLARE_INSTANCE_CHECKER(Exynos4210I2CState, EXYNOS4_I2C,
+                         TYPE_EXYNOS4_I2C)
 
 /* Exynos4210 I2C memory map */
 #define EXYNOS4_I2C_MEM_SIZE              0x14
@@ -83,7 +85,7 @@ static const char *exynos4_i2c_get_regname(unsigned offset)
 #define DPRINT(fmt, args...)              do { } while (0)
 #endif
 
-typedef struct Exynos4210I2CState {
+struct Exynos4210I2CState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -96,7 +98,7 @@ typedef struct Exynos4210I2CState {
     uint8_t i2cds;
     uint8_t i2clc;
     bool scl_free;
-} Exynos4210I2CState;
+};
 
 static inline void exynos4210_i2c_raise_interrupt(Exynos4210I2CState *s)
 {
diff --git a/hw/i2c/mpc_i2c.c b/hw/i2c/mpc_i2c.c
index 9a724f3a3e..156a25a8e9 100644
--- a/hw/i2c/mpc_i2c.c
+++ b/hw/i2c/mpc_i2c.c
@@ -24,6 +24,7 @@
 #include "qemu/module.h"
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 /* #define DEBUG_I2C */
 
@@ -36,8 +37,9 @@
 #endif
 
 #define TYPE_MPC_I2C "mpc-i2c"
-#define MPC_I2C(obj) \
-    OBJECT_CHECK(MPCI2CState, (obj), TYPE_MPC_I2C)
+typedef struct MPCI2CState MPCI2CState;
+DECLARE_INSTANCE_CHECKER(MPCI2CState, MPC_I2C,
+                         TYPE_MPC_I2C)
 
 #define MPC_I2C_ADR   0x00
 #define MPC_I2C_FDR   0x04
@@ -70,7 +72,7 @@
 
 #define CYCLE_RESET 0xFF
 
-typedef struct MPCI2CState {
+struct MPCI2CState {
     SysBusDevice parent_obj;
 
     I2CBus *bus;
@@ -84,7 +86,7 @@ typedef struct MPCI2CState {
     uint8_t sr;
     uint8_t dr;
     uint8_t dfssr;
-} MPCI2CState;
+};
 
 static bool mpc_i2c_is_enabled(MPCI2CState *s)
 {
diff --git a/hw/i2c/smbus_eeprom.c b/hw/i2c/smbus_eeprom.c
index b7def9eeb8..c6777844cf 100644
--- a/hw/i2c/smbus_eeprom.c
+++ b/hw/i2c/smbus_eeprom.c
@@ -31,23 +31,25 @@
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
 #include "hw/i2c/smbus_eeprom.h"
+#include "qom/object.h"
 
 //#define DEBUG
 
 #define TYPE_SMBUS_EEPROM "smbus-eeprom"
 
-#define SMBUS_EEPROM(obj) \
-    OBJECT_CHECK(SMBusEEPROMDevice, (obj), TYPE_SMBUS_EEPROM)
+typedef struct SMBusEEPROMDevice SMBusEEPROMDevice;
+DECLARE_INSTANCE_CHECKER(SMBusEEPROMDevice, SMBUS_EEPROM,
+                         TYPE_SMBUS_EEPROM)
 
 #define SMBUS_EEPROM_SIZE 256
 
-typedef struct SMBusEEPROMDevice {
+struct SMBusEEPROMDevice {
     SMBusDevice smbusdev;
     uint8_t data[SMBUS_EEPROM_SIZE];
     uint8_t *init_data;
     uint8_t offset;
     bool accessed;
-} SMBusEEPROMDevice;
+};
 
 static uint8_t eeprom_receive_byte(SMBusDevice *dev)
 {
diff --git a/hw/i2c/smbus_ich9.c b/hw/i2c/smbus_ich9.c
index 48f1ff4191..2d4578511d 100644
--- a/hw/i2c/smbus_ich9.c
+++ b/hw/i2c/smbus_ich9.c
@@ -28,17 +28,19 @@
 #include "qemu/module.h"
 
 #include "hw/i386/ich9.h"
+#include "qom/object.h"
 
-#define ICH9_SMB_DEVICE(obj) \
-     OBJECT_CHECK(ICH9SMBState, (obj), TYPE_ICH9_SMB_DEVICE)
+typedef struct ICH9SMBState ICH9SMBState;
+DECLARE_INSTANCE_CHECKER(ICH9SMBState, ICH9_SMB_DEVICE,
+                         TYPE_ICH9_SMB_DEVICE)
 
-typedef struct ICH9SMBState {
+struct ICH9SMBState {
     PCIDevice dev;
 
     bool irq_enabled;
 
     PMSMBus smb;
-} ICH9SMBState;
+};
 
 static bool ich9_vmstate_need_smbus(void *opaque, int version_id)
 {
diff --git a/hw/i2c/versatile_i2c.c b/hw/i2c/versatile_i2c.c
index da8cda2ec1..3a04ba3969 100644
--- a/hw/i2c/versatile_i2c.c
+++ b/hw/i2c/versatile_i2c.c
@@ -27,11 +27,12 @@
 #include "hw/registerfields.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
-
-#define VERSATILE_I2C(obj) \
-    OBJECT_CHECK(VersatileI2CState, (obj), TYPE_VERSATILE_I2C)
+#include "qom/object.h"
 
 typedef ArmSbconI2CState VersatileI2CState;
+DECLARE_INSTANCE_CHECKER(VersatileI2CState, VERSATILE_I2C,
+                         TYPE_VERSATILE_I2C)
+
 
 
 REG32(CONTROL_GET, 0)
diff --git a/hw/i386/amd_iommu.h b/hw/i386/amd_iommu.h
index e05a4eff5d..fa5feb183c 100644
--- a/hw/i386/amd_iommu.h
+++ b/hw/i386/amd_iommu.h
@@ -23,6 +23,7 @@
 
 #include "hw/pci/pci.h"
 #include "hw/i386/x86-iommu.h"
+#include "qom/object.h"
 
 /* Capability registers */
 #define AMDVI_CAPAB_BAR_LOW           0x04
@@ -296,8 +297,9 @@ struct irte_ga {
 };
 
 #define TYPE_AMD_IOMMU_DEVICE "amd-iommu"
-#define AMD_IOMMU_DEVICE(obj)\
-    OBJECT_CHECK(AMDVIState, (obj), TYPE_AMD_IOMMU_DEVICE)
+typedef struct AMDVIState AMDVIState;
+DECLARE_INSTANCE_CHECKER(AMDVIState, AMD_IOMMU_DEVICE,
+                         TYPE_AMD_IOMMU_DEVICE)
 
 #define TYPE_AMD_IOMMU_PCI "AMDVI-PCI"
 
@@ -310,7 +312,7 @@ typedef struct AMDVIPCIState {
     PCIDevice dev;               /* The PCI device itself        */
 } AMDVIPCIState;
 
-typedef struct AMDVIState {
+struct AMDVIState {
     X86IOMMUState iommu;        /* IOMMU bus device             */
     AMDVIPCIState pci;          /* IOMMU PCI device             */
 
@@ -367,6 +369,6 @@ typedef struct AMDVIState {
 
     /* Interrupt remapping */
     bool ga_enabled;
-} AMDVIState;
+};
 
 #endif
diff --git a/hw/i386/kvm/clock.c b/hw/i386/kvm/clock.c
index 64283358f9..37f47540e5 100644
--- a/hw/i386/kvm/clock.c
+++ b/hw/i386/kvm/clock.c
@@ -29,11 +29,14 @@
 
 #include <linux/kvm.h>
 #include "standard-headers/asm-x86/kvm_para.h"
+#include "qom/object.h"
 
 #define TYPE_KVM_CLOCK "kvmclock"
-#define KVM_CLOCK(obj) OBJECT_CHECK(KVMClockState, (obj), TYPE_KVM_CLOCK)
+typedef struct KVMClockState KVMClockState;
+DECLARE_INSTANCE_CHECKER(KVMClockState, KVM_CLOCK,
+                         TYPE_KVM_CLOCK)
 
-typedef struct KVMClockState {
+struct KVMClockState {
     /*< private >*/
     SysBusDevice busdev;
     /*< public >*/
@@ -50,7 +53,7 @@ typedef struct KVMClockState {
     /* whether the 'clock' value was obtained in a host with
      * reliable KVM_GET_CLOCK */
     bool clock_is_reliable;
-} KVMClockState;
+};
 
 struct pvclock_vcpu_time_info {
     uint32_t   version;
diff --git a/hw/i386/kvm/i8254.c b/hw/i386/kvm/i8254.c
index 876f5aa6fa..e18fd337fa 100644
--- a/hw/i386/kvm/i8254.c
+++ b/hw/i386/kvm/i8254.c
@@ -33,30 +33,30 @@
 #include "hw/timer/i8254.h"
 #include "hw/timer/i8254_internal.h"
 #include "sysemu/kvm.h"
+#include "qom/object.h"
 
 #define KVM_PIT_REINJECT_BIT 0
 
 #define CALIBRATION_ROUNDS   3
 
-#define KVM_PIT(obj) OBJECT_CHECK(KVMPITState, (obj), TYPE_KVM_I8254)
-#define KVM_PIT_CLASS(class) \
-    OBJECT_CLASS_CHECK(KVMPITClass, (class), TYPE_KVM_I8254)
-#define KVM_PIT_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(KVMPITClass, (obj), TYPE_KVM_I8254)
+typedef struct KVMPITClass KVMPITClass;
+typedef struct KVMPITState KVMPITState;
+DECLARE_OBJ_CHECKERS(KVMPITState, KVMPITClass,
+                     KVM_PIT, TYPE_KVM_I8254)
 
-typedef struct KVMPITState {
+struct KVMPITState {
     PITCommonState parent_obj;
 
     LostTickPolicy lost_tick_policy;
     bool vm_stopped;
     int64_t kernel_clock_offset;
-} KVMPITState;
+};
 
-typedef struct KVMPITClass {
+struct KVMPITClass {
     PITCommonClass parent_class;
 
     DeviceRealize parent_realize;
-} KVMPITClass;
+};
 
 static int64_t abs64(int64_t v)
 {
diff --git a/hw/i386/kvm/i8259.c b/hw/i386/kvm/i8259.c
index e404fdcdac..3f8bf69e9c 100644
--- a/hw/i386/kvm/i8259.c
+++ b/hw/i386/kvm/i8259.c
@@ -17,22 +17,22 @@
 #include "hw/i386/apic_internal.h"
 #include "hw/irq.h"
 #include "sysemu/kvm.h"
+#include "qom/object.h"
 
 #define TYPE_KVM_I8259 "kvm-i8259"
-#define KVM_PIC_CLASS(class) \
-    OBJECT_CLASS_CHECK(KVMPICClass, (class), TYPE_KVM_I8259)
-#define KVM_PIC_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(KVMPICClass, (obj), TYPE_KVM_I8259)
+typedef struct KVMPICClass KVMPICClass;
+DECLARE_CLASS_CHECKERS(KVMPICClass, KVM_PIC,
+                       TYPE_KVM_I8259)
 
 /**
  * KVMPICClass:
  * @parent_realize: The parent's realizefn.
  */
-typedef struct KVMPICClass {
+struct KVMPICClass {
     PICCommonClass parent_class;
 
     DeviceRealize parent_realize;
-} KVMPICClass;
+};
 
 static void kvm_pic_get(PICCommonState *s)
 {
diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
index 51639202c2..a4e05f086e 100644
--- a/hw/i386/kvmvapic.c
+++ b/hw/i386/kvmvapic.c
@@ -22,6 +22,7 @@
 #include "hw/boards.h"
 #include "migration/vmstate.h"
 #include "tcg/tcg.h"
+#include "qom/object.h"
 
 #define VAPIC_IO_PORT           0x7e
 
@@ -56,7 +57,7 @@ typedef struct GuestROMState {
     VAPICHandlers mp;
 } QEMU_PACKED GuestROMState;
 
-typedef struct VAPICROMState {
+struct VAPICROMState {
     SysBusDevice busdev;
     MemoryRegion io;
     MemoryRegion rom;
@@ -69,10 +70,12 @@ typedef struct VAPICROMState {
     size_t rom_size;
     bool rom_mapped_writable;
     VMChangeStateEntry *vmsentry;
-} VAPICROMState;
+};
+typedef struct VAPICROMState VAPICROMState;
 
 #define TYPE_VAPIC "kvmvapic"
-#define VAPIC(obj) OBJECT_CHECK(VAPICROMState, (obj), TYPE_VAPIC)
+DECLARE_INSTANCE_CHECKER(VAPICROMState, VAPIC,
+                         TYPE_VAPIC)
 
 #define TPR_INSTR_ABS_MODRM             0x1
 #define TPR_INSTR_MATCH_MODRM_REG       0x2
diff --git a/hw/i386/port92.c b/hw/i386/port92.c
index 19866c44ef..c00dcb261b 100644
--- a/hw/i386/port92.c
+++ b/hw/i386/port92.c
@@ -12,16 +12,19 @@
 #include "hw/irq.h"
 #include "hw/i386/pc.h"
 #include "trace.h"
+#include "qom/object.h"
 
-#define PORT92(obj) OBJECT_CHECK(Port92State, (obj), TYPE_PORT92)
+typedef struct Port92State Port92State;
+DECLARE_INSTANCE_CHECKER(Port92State, PORT92,
+                         TYPE_PORT92)
 
-typedef struct Port92State {
+struct Port92State {
     ISADevice parent_obj;
 
     MemoryRegion io;
     uint8_t outport;
     qemu_irq a20_out;
-} Port92State;
+};
 
 static void port92_write(void *opaque, hwaddr addr, uint64_t val,
                          unsigned size)
diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c
index ba5c987bd2..ae4cbc7add 100644
--- a/hw/i386/vmmouse.c
+++ b/hw/i386/vmmouse.c
@@ -30,6 +30,7 @@
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
 #include "cpu.h"
+#include "qom/object.h"
 
 /* debug only vmmouse */
 //#define DEBUG_VMMOUSE
@@ -50,10 +51,11 @@
 #endif
 
 #define TYPE_VMMOUSE "vmmouse"
-#define VMMOUSE(obj) OBJECT_CHECK(VMMouseState, (obj), TYPE_VMMOUSE)
+typedef struct VMMouseState VMMouseState;
+DECLARE_INSTANCE_CHECKER(VMMouseState, VMMOUSE,
+                         TYPE_VMMOUSE)
 
-typedef struct VMMouseState
-{
+struct VMMouseState {
     ISADevice parent_obj;
 
     uint32_t queue[VMMOUSE_QUEUE_SIZE];
@@ -63,7 +65,7 @@ typedef struct VMMouseState
     uint8_t absolute;
     QEMUPutMouseEntry *entry;
     ISAKBDState *i8042;
-} VMMouseState;
+};
 
 static void vmmouse_get_data(uint32_t *data)
 {
diff --git a/hw/i386/vmport.c b/hw/i386/vmport.c
index 89bda9108e..df52b6f903 100644
--- a/hw/i386/vmport.c
+++ b/hw/i386/vmport.c
@@ -38,6 +38,7 @@
 #include "qemu/log.h"
 #include "cpu.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define VMPORT_MAGIC   0x564D5868
 
@@ -62,9 +63,11 @@
 #define VCPU_INFO_LEGACY_X2APIC_BIT     3
 #define VCPU_INFO_RESERVED_BIT          31
 
-#define VMPORT(obj) OBJECT_CHECK(VMPortState, (obj), TYPE_VMPORT)
+typedef struct VMPortState VMPortState;
+DECLARE_INSTANCE_CHECKER(VMPortState, VMPORT,
+                         TYPE_VMPORT)
 
-typedef struct VMPortState {
+struct VMPortState {
     ISADevice parent_obj;
 
     MemoryRegion io;
@@ -75,7 +78,7 @@ typedef struct VMPortState {
     uint8_t vmware_vmx_type;
 
     uint32_t compat_flags;
-} VMPortState;
+};
 
 static VMPortState *port_state;
 
diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c
index a1492fdecd..a8bbe8c833 100644
--- a/hw/i386/xen/xen_platform.c
+++ b/hw/i386/xen/xen_platform.c
@@ -39,6 +39,7 @@
 #include "qemu/module.h"
 
 #include <xenguest.h>
+#include "qom/object.h"
 
 //#define DEBUG_PLATFORM
 
@@ -52,7 +53,7 @@
 
 #define PFFLAG_ROM_LOCK 1 /* Sets whether ROM memory area is RW or RO */
 
-typedef struct PCIXenPlatformState {
+struct PCIXenPlatformState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -67,11 +68,12 @@ typedef struct PCIXenPlatformState {
     /* Log from guest drivers */
     char log_buffer[4096];
     int log_buffer_off;
-} PCIXenPlatformState;
+};
+typedef struct PCIXenPlatformState PCIXenPlatformState;
 
 #define TYPE_XEN_PLATFORM "xen-platform"
-#define XEN_PLATFORM(obj) \
-    OBJECT_CHECK(PCIXenPlatformState, (obj), TYPE_XEN_PLATFORM)
+DECLARE_INSTANCE_CHECKER(PCIXenPlatformState, XEN_PLATFORM,
+                         TYPE_XEN_PLATFORM)
 
 #define XEN_PLATFORM_IOPORT 0x10
 
diff --git a/hw/i386/xen/xen_pvdevice.c b/hw/i386/xen/xen_pvdevice.c
index ee2610c7a0..67f83616d3 100644
--- a/hw/i386/xen/xen_pvdevice.c
+++ b/hw/i386/xen/xen_pvdevice.c
@@ -36,13 +36,15 @@
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_XEN_PV_DEVICE  "xen-pvdevice"
 
-#define XEN_PV_DEVICE(obj) \
-     OBJECT_CHECK(XenPVDevice, (obj), TYPE_XEN_PV_DEVICE)
+typedef struct XenPVDevice XenPVDevice;
+DECLARE_INSTANCE_CHECKER(XenPVDevice, XEN_PV_DEVICE,
+                         TYPE_XEN_PV_DEVICE)
 
-typedef struct XenPVDevice {
+struct XenPVDevice {
     /*< private >*/
     PCIDevice       parent_obj;
     /*< public >*/
@@ -51,7 +53,7 @@ typedef struct XenPVDevice {
     uint8_t         revision;
     uint32_t        size;
     MemoryRegion    mmio;
-} XenPVDevice;
+};
 
 static uint64_t xen_pv_mmio_read(void *opaque, hwaddr addr,
                                  unsigned size)
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index b696c6291a..ee1d47ff75 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -1819,7 +1819,7 @@ type_init(sysbus_ahci_register_types)
 
 int32_t ahci_get_num_ports(PCIDevice *dev)
 {
-    AHCIPCIState *d = ICH_AHCI(dev);
+    AHCIPCIState *d = ICH9_AHCI(dev);
     AHCIState *ahci = &d->ahci;
 
     return ahci->ports;
@@ -1827,7 +1827,7 @@ int32_t ahci_get_num_ports(PCIDevice *dev)
 
 void ahci_ide_create_devs(PCIDevice *dev, DriveInfo **hd)
 {
-    AHCIPCIState *d = ICH_AHCI(dev);
+    AHCIPCIState *d = ICH9_AHCI(dev);
     AHCIState *ahci = &d->ahci;
     int i;
 
diff --git a/hw/ide/ich.c b/hw/ide/ich.c
index eff3188fff..51cd2f38b7 100644
--- a/hw/ide/ich.c
+++ b/hw/ide/ich.c
@@ -91,14 +91,14 @@ static const VMStateDescription vmstate_ich9_ahci = {
 
 static void pci_ich9_reset(DeviceState *dev)
 {
-    AHCIPCIState *d = ICH_AHCI(dev);
+    AHCIPCIState *d = ICH9_AHCI(dev);
 
     ahci_reset(&d->ahci);
 }
 
 static void pci_ich9_ahci_init(Object *obj)
 {
-    struct AHCIPCIState *d = ICH_AHCI(obj);
+    struct AHCIPCIState *d = ICH9_AHCI(obj);
 
     ahci_init(&d->ahci, DEVICE(obj));
 }
@@ -108,7 +108,7 @@ static void pci_ich9_ahci_realize(PCIDevice *dev, Error **errp)
     struct AHCIPCIState *d;
     int sata_cap_offset;
     uint8_t *sata_cap;
-    d = ICH_AHCI(dev);
+    d = ICH9_AHCI(dev);
     int ret;
 
     ahci_realize(&d->ahci, DEVICE(dev), pci_get_address_space(dev), 6);
@@ -154,7 +154,7 @@ static void pci_ich9_ahci_realize(PCIDevice *dev, Error **errp)
 static void pci_ich9_uninit(PCIDevice *dev)
 {
     struct AHCIPCIState *d;
-    d = ICH_AHCI(dev);
+    d = ICH9_AHCI(dev);
 
     msi_uninit(dev);
     ahci_uninit(&d->ahci);
diff --git a/hw/ide/isa.c b/hw/ide/isa.c
index f28c8fba6c..9a3489691b 100644
--- a/hw/ide/isa.c
+++ b/hw/ide/isa.c
@@ -32,14 +32,17 @@
 #include "sysemu/dma.h"
 
 #include "hw/ide/internal.h"
+#include "qom/object.h"
 
 /***********************************************************/
 /* ISA IDE definitions */
 
 #define TYPE_ISA_IDE "isa-ide"
-#define ISA_IDE(obj) OBJECT_CHECK(ISAIDEState, (obj), TYPE_ISA_IDE)
+typedef struct ISAIDEState ISAIDEState;
+DECLARE_INSTANCE_CHECKER(ISAIDEState, ISA_IDE,
+                         TYPE_ISA_IDE)
 
-typedef struct ISAIDEState {
+struct ISAIDEState {
     ISADevice parent_obj;
 
     IDEBus    bus;
@@ -47,7 +50,7 @@ typedef struct ISAIDEState {
     uint32_t  iobase2;
     uint32_t  isairq;
     qemu_irq  irq;
-} ISAIDEState;
+};
 
 static void isa_ide_reset(DeviceState *d)
 {
diff --git a/hw/ide/microdrive.c b/hw/ide/microdrive.c
index c4cc0a84eb..6e7f5df901 100644
--- a/hw/ide/microdrive.c
+++ b/hw/ide/microdrive.c
@@ -31,9 +31,12 @@
 #include "sysemu/dma.h"
 
 #include "hw/ide/internal.h"
+#include "qom/object.h"
 
 #define TYPE_MICRODRIVE "microdrive"
-#define MICRODRIVE(obj) OBJECT_CHECK(MicroDriveState, (obj), TYPE_MICRODRIVE)
+typedef struct MicroDriveState MicroDriveState;
+DECLARE_INSTANCE_CHECKER(MicroDriveState, MICRODRIVE,
+                         TYPE_MICRODRIVE)
 
 /***********************************************************/
 /* CF-ATA Microdrive */
@@ -42,7 +45,7 @@
 
 /* DSCM-1XXXX Microdrive hard disk with CF+ II / PCMCIA interface.  */
 
-typedef struct MicroDriveState {
+struct MicroDriveState {
     /*< private >*/
     PCMCIACardState parent_obj;
     /*< public >*/
@@ -59,7 +62,7 @@ typedef struct MicroDriveState {
     uint8_t ctrl;
     uint16_t io;
     uint8_t cycle;
-} MicroDriveState;
+};
 
 /* Register bitfields */
 enum md_opt {
diff --git a/hw/ide/mmio.c b/hw/ide/mmio.c
index d233bd8c01..4bf6e3a8b7 100644
--- a/hw/ide/mmio.c
+++ b/hw/ide/mmio.c
@@ -31,6 +31,7 @@
 
 #include "hw/ide/internal.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 /***********************************************************/
 /* MMIO based ide port
@@ -39,9 +40,11 @@
  */
 
 #define TYPE_MMIO_IDE "mmio-ide"
-#define MMIO_IDE(obj) OBJECT_CHECK(MMIOState, (obj), TYPE_MMIO_IDE)
+typedef struct MMIOIDEState MMIOState;
+DECLARE_INSTANCE_CHECKER(MMIOState, MMIO_IDE,
+                         TYPE_MMIO_IDE)
 
-typedef struct MMIOIDEState {
+struct MMIOIDEState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -51,7 +54,7 @@ typedef struct MMIOIDEState {
     uint32_t shift;
     qemu_irq irq;
     MemoryRegion iomem1, iomem2;
-} MMIOState;
+};
 
 static void mmio_ide_reset(DeviceState *dev)
 {
diff --git a/hw/ide/sii3112.c b/hw/ide/sii3112.c
index 94d2b57f95..968c239ab8 100644
--- a/hw/ide/sii3112.c
+++ b/hw/ide/sii3112.c
@@ -16,9 +16,11 @@
 #include "hw/ide/pci.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_SII3112_PCI "sii3112"
-#define SII3112_PCI(obj) OBJECT_CHECK(SiI3112PCIState, (obj), \
+typedef struct SiI3112PCIState SiI3112PCIState;
+DECLARE_INSTANCE_CHECKER(SiI3112PCIState, SII3112_PCI,
                          TYPE_SII3112_PCI)
 
 typedef struct SiI3112Regs {
@@ -28,11 +30,11 @@ typedef struct SiI3112Regs {
     uint8_t swdata;
 } SiI3112Regs;
 
-typedef struct SiI3112PCIState {
+struct SiI3112PCIState {
     PCIIDEState i;
     MemoryRegion mmio;
     SiI3112Regs regs[2];
-} SiI3112PCIState;
+};
 
 /* The sii3112_reg_read and sii3112_reg_write functions implement the
  * Internal Register Space - BAR5 (section 6.7 of the data sheet).
diff --git a/hw/input/adb-kbd.c b/hw/input/adb-kbd.c
index 3cfb6a7a20..fe0c363d64 100644
--- a/hw/input/adb-kbd.c
+++ b/hw/input/adb-kbd.c
@@ -30,30 +30,30 @@
 #include "hw/input/adb-keys.h"
 #include "adb-internal.h"
 #include "trace.h"
+#include "qom/object.h"
 
-#define ADB_KEYBOARD(obj) OBJECT_CHECK(KBDState, (obj), TYPE_ADB_KEYBOARD)
+typedef struct ADBKeyboardClass ADBKeyboardClass;
+typedef struct KBDState KBDState;
+DECLARE_OBJ_CHECKERS(KBDState, ADBKeyboardClass,
+                     ADB_KEYBOARD, TYPE_ADB_KEYBOARD)
 
-typedef struct KBDState {
+struct KBDState {
     /*< private >*/
     ADBDevice parent_obj;
     /*< public >*/
 
     uint8_t data[128];
     int rptr, wptr, count;
-} KBDState;
+};
 
-#define ADB_KEYBOARD_CLASS(class) \
-    OBJECT_CLASS_CHECK(ADBKeyboardClass, (class), TYPE_ADB_KEYBOARD)
-#define ADB_KEYBOARD_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(ADBKeyboardClass, (obj), TYPE_ADB_KEYBOARD)
 
-typedef struct ADBKeyboardClass {
+struct ADBKeyboardClass {
     /*< private >*/
     ADBDeviceClass parent_class;
     /*< public >*/
 
     DeviceRealize parent_realize;
-} ADBKeyboardClass;
+};
 
 /* The adb keyboard doesn't have every key imaginable */
 #define NO_KEY 0xff
diff --git a/hw/input/adb-mouse.c b/hw/input/adb-mouse.c
index 577a38ff2e..f5750909b4 100644
--- a/hw/input/adb-mouse.c
+++ b/hw/input/adb-mouse.c
@@ -29,30 +29,30 @@
 #include "qemu/module.h"
 #include "adb-internal.h"
 #include "trace.h"
+#include "qom/object.h"
 
-#define ADB_MOUSE(obj) OBJECT_CHECK(MouseState, (obj), TYPE_ADB_MOUSE)
+typedef struct ADBMouseClass ADBMouseClass;
+typedef struct MouseState MouseState;
+DECLARE_OBJ_CHECKERS(MouseState, ADBMouseClass,
+                     ADB_MOUSE, TYPE_ADB_MOUSE)
 
-typedef struct MouseState {
+struct MouseState {
     /*< public >*/
     ADBDevice parent_obj;
     /*< private >*/
 
     int buttons_state, last_buttons_state;
     int dx, dy, dz;
-} MouseState;
+};
 
-#define ADB_MOUSE_CLASS(class) \
-    OBJECT_CLASS_CHECK(ADBMouseClass, (class), TYPE_ADB_MOUSE)
-#define ADB_MOUSE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(ADBMouseClass, (obj), TYPE_ADB_MOUSE)
 
-typedef struct ADBMouseClass {
+struct ADBMouseClass {
     /*< public >*/
     ADBDeviceClass parent_class;
     /*< private >*/
 
     DeviceRealize parent_realize;
-} ADBMouseClass;
+};
 
 static void adb_mouse_event(void *opaque,
                             int dx1, int dy1, int dz1, int buttons_state)
diff --git a/hw/input/lm832x.c b/hw/input/lm832x.c
index aa629ddbf1..70245fd817 100644
--- a/hw/input/lm832x.c
+++ b/hw/input/lm832x.c
@@ -25,11 +25,14 @@
 #include "qemu/module.h"
 #include "qemu/timer.h"
 #include "ui/console.h"
+#include "qom/object.h"
 
 #define TYPE_LM8323 "lm8323"
-#define LM8323(obj) OBJECT_CHECK(LM823KbdState, (obj), TYPE_LM8323)
+typedef struct LM823KbdState LM823KbdState;
+DECLARE_INSTANCE_CHECKER(LM823KbdState, LM8323,
+                         TYPE_LM8323)
 
-typedef struct {
+struct LM823KbdState {
     I2CSlave parent_obj;
 
     uint8_t i2c_dir;
@@ -72,7 +75,7 @@ typedef struct {
         uint8_t addr[3];
         QEMUTimer *tm[3];
     } pwm;
-} LM823KbdState;
+};
 
 #define INT_KEYPAD		(1 << 0)
 #define INT_ERROR		(1 << 3)
diff --git a/hw/input/milkymist-softusb.c b/hw/input/milkymist-softusb.c
index 3e0a7eb0bd..eaaf8adde4 100644
--- a/hw/input/milkymist-softusb.c
+++ b/hw/input/milkymist-softusb.c
@@ -32,6 +32,7 @@
 #include "hw/qdev-properties.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 enum {
     R_CTRL = 0,
@@ -50,8 +51,9 @@ enum {
 #define COMLOC_KEVT_BASE     0x1143
 
 #define TYPE_MILKYMIST_SOFTUSB "milkymist-softusb"
-#define MILKYMIST_SOFTUSB(obj) \
-    OBJECT_CHECK(MilkymistSoftUsbState, (obj), TYPE_MILKYMIST_SOFTUSB)
+typedef struct MilkymistSoftUsbState MilkymistSoftUsbState;
+DECLARE_INSTANCE_CHECKER(MilkymistSoftUsbState, MILKYMIST_SOFTUSB,
+                         TYPE_MILKYMIST_SOFTUSB)
 
 struct MilkymistSoftUsbState {
     SysBusDevice parent_obj;
@@ -80,7 +82,6 @@ struct MilkymistSoftUsbState {
     /* keyboard state */
     uint8_t kbd_hid_buffer[8];
 };
-typedef struct MilkymistSoftUsbState MilkymistSoftUsbState;
 
 static uint64_t softusb_read(void *opaque, hwaddr addr,
                              unsigned size)
diff --git a/hw/input/pl050.c b/hw/input/pl050.c
index 1123037b38..7c53ae97da 100644
--- a/hw/input/pl050.c
+++ b/hw/input/pl050.c
@@ -14,11 +14,14 @@
 #include "hw/irq.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TYPE_PL050 "pl050"
-#define PL050(obj) OBJECT_CHECK(PL050State, (obj), TYPE_PL050)
+typedef struct PL050State PL050State;
+DECLARE_INSTANCE_CHECKER(PL050State, PL050,
+                         TYPE_PL050)
 
-typedef struct PL050State {
+struct PL050State {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -29,7 +32,7 @@ typedef struct PL050State {
     int pending;
     qemu_irq irq;
     bool is_mouse;
-} PL050State;
+};
 
 static const VMStateDescription vmstate_pl050 = {
     .name = "pl050",
diff --git a/hw/intc/apic.c b/hw/intc/apic.c
index 38aabd60cd..b6a05e5439 100644
--- a/hw/intc/apic.c
+++ b/hw/intc/apic.c
@@ -28,6 +28,7 @@
 #include "trace.h"
 #include "hw/i386/apic-msidef.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 #define MAX_APICS 255
 #define MAX_APIC_WORDS 8
@@ -39,8 +40,9 @@
 static APICCommonState *local_apics[MAX_APICS + 1];
 
 #define TYPE_APIC "apic"
-#define APIC(obj) \
-    OBJECT_CHECK(APICCommonState, (obj), TYPE_APIC)
+/*This is reusing the APICCommonState typedef from APIC_COMMON */
+DECLARE_INSTANCE_CHECKER(APICCommonState, APIC,
+                         TYPE_APIC)
 
 static void apic_set_irq(APICCommonState *s, int vector_num, int trigger_mode);
 static void apic_update_irq(APICCommonState *s);
diff --git a/hw/intc/arm_gic_kvm.c b/hw/intc/arm_gic_kvm.c
index 07b95143c9..9494185cf4 100644
--- a/hw/intc/arm_gic_kvm.c
+++ b/hw/intc/arm_gic_kvm.c
@@ -29,20 +29,19 @@
 #include "kvm_arm.h"
 #include "gic_internal.h"
 #include "vgic_common.h"
+#include "qom/object.h"
 
 #define TYPE_KVM_ARM_GIC "kvm-arm-gic"
-#define KVM_ARM_GIC(obj) \
-     OBJECT_CHECK(GICState, (obj), TYPE_KVM_ARM_GIC)
-#define KVM_ARM_GIC_CLASS(klass) \
-     OBJECT_CLASS_CHECK(KVMARMGICClass, (klass), TYPE_KVM_ARM_GIC)
-#define KVM_ARM_GIC_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(KVMARMGICClass, (obj), TYPE_KVM_ARM_GIC)
-
-typedef struct KVMARMGICClass {
+typedef struct KVMARMGICClass KVMARMGICClass;
+/* This is reusing the GICState typedef from ARM_GIC_COMMON */
+DECLARE_OBJ_CHECKERS(GICState, KVMARMGICClass,
+                     KVM_ARM_GIC, TYPE_KVM_ARM_GIC)
+
+struct KVMARMGICClass {
     ARMGICCommonClass parent_class;
     DeviceRealize parent_realize;
     void (*parent_reset)(DeviceState *dev);
-} KVMARMGICClass;
+};
 
 void kvm_arm_gic_set_irq(uint32_t num_irq, int irq, int level)
 {
diff --git a/hw/intc/arm_gicv2m.c b/hw/intc/arm_gicv2m.c
index 0b7e2b4f84..04d7a6d68b 100644
--- a/hw/intc/arm_gicv2m.c
+++ b/hw/intc/arm_gicv2m.c
@@ -34,9 +34,12 @@
 #include "sysemu/kvm.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TYPE_ARM_GICV2M "arm-gicv2m"
-#define ARM_GICV2M(obj) OBJECT_CHECK(ARMGICv2mState, (obj), TYPE_ARM_GICV2M)
+typedef struct ARMGICv2mState ARMGICv2mState;
+DECLARE_INSTANCE_CHECKER(ARMGICv2mState, ARM_GICV2M,
+                         TYPE_ARM_GICV2M)
 
 #define GICV2M_NUM_SPI_MAX 128
 
@@ -48,7 +51,7 @@
 
 #define PRODUCT_ID_QEMU         0x51 /* ASCII code Q */
 
-typedef struct ARMGICv2mState {
+struct ARMGICv2mState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -56,7 +59,7 @@ typedef struct ARMGICv2mState {
 
     uint32_t base_spi;
     uint32_t num_spi;
-} ARMGICv2mState;
+};
 
 static void gicv2m_set_irq(void *opaque, int irq)
 {
diff --git a/hw/intc/arm_gicv3_its_kvm.c b/hw/intc/arm_gicv3_its_kvm.c
index 46835ed085..4ee9875ecc 100644
--- a/hw/intc/arm_gicv3_its_kvm.c
+++ b/hw/intc/arm_gicv3_its_kvm.c
@@ -27,18 +27,18 @@
 #include "sysemu/kvm.h"
 #include "kvm_arm.h"
 #include "migration/blocker.h"
+#include "qom/object.h"
 
 #define TYPE_KVM_ARM_ITS "arm-its-kvm"
-#define KVM_ARM_ITS(obj) OBJECT_CHECK(GICv3ITSState, (obj), TYPE_KVM_ARM_ITS)
-#define KVM_ARM_ITS_CLASS(klass) \
-     OBJECT_CLASS_CHECK(KVMARMITSClass, (klass), TYPE_KVM_ARM_ITS)
-#define KVM_ARM_ITS_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(KVMARMITSClass, (obj), TYPE_KVM_ARM_ITS)
+typedef struct KVMARMITSClass KVMARMITSClass;
+/* This is reusing the GICv3ITSState typedef from ARM_GICV3_ITS_COMMON */
+DECLARE_OBJ_CHECKERS(GICv3ITSState, KVMARMITSClass,
+                     KVM_ARM_ITS, TYPE_KVM_ARM_ITS)
 
-typedef struct KVMARMITSClass {
+struct KVMARMITSClass {
     GICv3ITSCommonClass parent_class;
     void (*parent_reset)(DeviceState *dev);
-} KVMARMITSClass;
+};
 
 
 static int kvm_its_send_msi(GICv3ITSState *s, uint32_t value, uint16_t devid)
diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c
index eddd07c743..187eb054e0 100644
--- a/hw/intc/arm_gicv3_kvm.c
+++ b/hw/intc/arm_gicv3_kvm.c
@@ -31,6 +31,7 @@
 #include "gicv3_internal.h"
 #include "vgic_common.h"
 #include "migration/blocker.h"
+#include "qom/object.h"
 
 #ifdef DEBUG_GICV3_KVM
 #define DPRINTF(fmt, ...) \
@@ -41,12 +42,10 @@
 #endif
 
 #define TYPE_KVM_ARM_GICV3 "kvm-arm-gicv3"
-#define KVM_ARM_GICV3(obj) \
-     OBJECT_CHECK(GICv3State, (obj), TYPE_KVM_ARM_GICV3)
-#define KVM_ARM_GICV3_CLASS(klass) \
-     OBJECT_CLASS_CHECK(KVMARMGICv3Class, (klass), TYPE_KVM_ARM_GICV3)
-#define KVM_ARM_GICV3_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(KVMARMGICv3Class, (obj), TYPE_KVM_ARM_GICV3)
+typedef struct KVMARMGICv3Class KVMARMGICv3Class;
+/* This is reusing the GICv3State typedef from ARM_GICV3_ITS_COMMON */
+DECLARE_OBJ_CHECKERS(GICv3State, KVMARMGICv3Class,
+                     KVM_ARM_GICV3, TYPE_KVM_ARM_GICV3)
 
 #define   KVM_DEV_ARM_VGIC_SYSREG(op0, op1, crn, crm, op2)         \
                              (ARM64_SYS_REG_SHIFT_MASK(op0, OP0) | \
@@ -74,11 +73,11 @@
 #define ICC_IGRPEN1_EL1 \
     KVM_DEV_ARM_VGIC_SYSREG(3, 0, 12, 12, 7)
 
-typedef struct KVMARMGICv3Class {
+struct KVMARMGICv3Class {
     ARMGICv3CommonClass parent_class;
     DeviceRealize parent_realize;
     void (*parent_reset)(DeviceState *dev);
-} KVMARMGICv3Class;
+};
 
 static void kvm_arm_gicv3_set_irq(void *opaque, int irq, int level)
 {
diff --git a/hw/intc/etraxfs_pic.c b/hw/intc/etraxfs_pic.c
index 12988c7aa9..54ed4c77f7 100644
--- a/hw/intc/etraxfs_pic.c
+++ b/hw/intc/etraxfs_pic.c
@@ -27,6 +27,7 @@
 #include "qemu/module.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define D(x)
 
@@ -38,8 +39,8 @@
 #define R_MAX       5
 
 #define TYPE_ETRAX_FS_PIC "etraxfs,pic"
-#define ETRAX_FS_PIC(obj) \
-    OBJECT_CHECK(struct etrax_pic, (obj), TYPE_ETRAX_FS_PIC)
+DECLARE_INSTANCE_CHECKER(struct etrax_pic, ETRAX_FS_PIC,
+                         TYPE_ETRAX_FS_PIC)
 
 struct etrax_pic
 {
diff --git a/hw/intc/exynos4210_combiner.c b/hw/intc/exynos4210_combiner.c
index 59dd27fb16..7b01481ab8 100644
--- a/hw/intc/exynos4210_combiner.c
+++ b/hw/intc/exynos4210_combiner.c
@@ -36,6 +36,7 @@
 #include "hw/hw.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 //#define DEBUG_COMBINER
 
@@ -63,10 +64,11 @@ typedef struct CombinerGroupState {
 } CombinerGroupState;
 
 #define TYPE_EXYNOS4210_COMBINER "exynos4210.combiner"
-#define EXYNOS4210_COMBINER(obj) \
-    OBJECT_CHECK(Exynos4210CombinerState, (obj), TYPE_EXYNOS4210_COMBINER)
+typedef struct Exynos4210CombinerState Exynos4210CombinerState;
+DECLARE_INSTANCE_CHECKER(Exynos4210CombinerState, EXYNOS4210_COMBINER,
+                         TYPE_EXYNOS4210_COMBINER)
 
-typedef struct Exynos4210CombinerState {
+struct Exynos4210CombinerState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -77,7 +79,7 @@ typedef struct Exynos4210CombinerState {
     uint32_t external;          /* 1 means that this combiner is external */
 
     qemu_irq output_irq[IIC_NGRP];
-} Exynos4210CombinerState;
+};
 
 static const VMStateDescription vmstate_exynos4210_combiner_group_state = {
     .name = "exynos4210.combiner.groupstate",
diff --git a/hw/intc/exynos4210_gic.c b/hw/intc/exynos4210_gic.c
index 0aa3b843a9..f9487673fc 100644
--- a/hw/intc/exynos4210_gic.c
+++ b/hw/intc/exynos4210_gic.c
@@ -28,6 +28,7 @@
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
 #include "hw/arm/exynos4210.h"
+#include "qom/object.h"
 
 enum ExtGicId {
     EXT_GIC_ID_MDMA_LCD0 = 66,
@@ -264,10 +265,11 @@ uint32_t exynos4210_get_irq(uint32_t grp, uint32_t bit)
 /********* GIC part *********/
 
 #define TYPE_EXYNOS4210_GIC "exynos4210.gic"
-#define EXYNOS4210_GIC(obj) \
-    OBJECT_CHECK(Exynos4210GicState, (obj), TYPE_EXYNOS4210_GIC)
+typedef struct Exynos4210GicState Exynos4210GicState;
+DECLARE_INSTANCE_CHECKER(Exynos4210GicState, EXYNOS4210_GIC,
+                         TYPE_EXYNOS4210_GIC)
 
-typedef struct {
+struct Exynos4210GicState {
     SysBusDevice parent_obj;
 
     MemoryRegion cpu_container;
@@ -276,7 +278,7 @@ typedef struct {
     MemoryRegion dist_alias[EXYNOS4210_NCPUS];
     uint32_t num_cpu;
     DeviceState *gic;
-} Exynos4210GicState;
+};
 
 static void exynos4210_gic_set_irq(void *opaque, int irq, int level)
 {
@@ -382,16 +384,17 @@ type_init(exynos4210_gic_register_types)
  */
 
 #define TYPE_EXYNOS4210_IRQ_GATE "exynos4210.irq_gate"
-#define EXYNOS4210_IRQ_GATE(obj) \
-    OBJECT_CHECK(Exynos4210IRQGateState, (obj), TYPE_EXYNOS4210_IRQ_GATE)
+typedef struct Exynos4210IRQGateState Exynos4210IRQGateState;
+DECLARE_INSTANCE_CHECKER(Exynos4210IRQGateState, EXYNOS4210_IRQ_GATE,
+                         TYPE_EXYNOS4210_IRQ_GATE)
 
-typedef struct Exynos4210IRQGateState {
+struct Exynos4210IRQGateState {
     SysBusDevice parent_obj;
 
     uint32_t n_in;      /* inputs amount */
     uint32_t *level;    /* input levels */
     qemu_irq out;       /* output IRQ */
-} Exynos4210IRQGateState;
+};
 
 static Property exynos4210_irq_gate_properties[] = {
     DEFINE_PROP_UINT32("n_in", Exynos4210IRQGateState, n_in, 1),
diff --git a/hw/intc/grlib_irqmp.c b/hw/intc/grlib_irqmp.c
index 794c643af2..9b34a8ae03 100644
--- a/hw/intc/grlib_irqmp.c
+++ b/hw/intc/grlib_irqmp.c
@@ -35,6 +35,7 @@
 #include "trace.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define IRQMP_MAX_CPU 16
 #define IRQMP_REG_SIZE 256      /* Size of memory mapped registers */
@@ -50,18 +51,20 @@
 #define FORCE_OFFSET     0x80
 #define EXTENDED_OFFSET  0xC0
 
-#define GRLIB_IRQMP(obj) OBJECT_CHECK(IRQMP, (obj), TYPE_GRLIB_IRQMP)
+typedef struct IRQMP IRQMP;
+DECLARE_INSTANCE_CHECKER(IRQMP, GRLIB_IRQMP,
+                         TYPE_GRLIB_IRQMP)
 
 typedef struct IRQMPState IRQMPState;
 
-typedef struct IRQMP {
+struct IRQMP {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
 
     IRQMPState *state;
     qemu_irq irq;
-} IRQMP;
+};
 
 struct IRQMPState {
     uint32_t level;
diff --git a/hw/intc/i8259.c b/hw/intc/i8259.c
index 51b27f6a34..344fd04db1 100644
--- a/hw/intc/i8259.c
+++ b/hw/intc/i8259.c
@@ -30,6 +30,7 @@
 #include "qemu/log.h"
 #include "hw/isa/i8259_internal.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /* debug PIC */
 //#define DEBUG_PIC
@@ -37,18 +38,19 @@
 //#define DEBUG_IRQ_LATENCY
 
 #define TYPE_I8259 "isa-i8259"
-#define PIC_CLASS(class) OBJECT_CLASS_CHECK(PICClass, (class), TYPE_I8259)
-#define PIC_GET_CLASS(obj) OBJECT_GET_CLASS(PICClass, (obj), TYPE_I8259)
+typedef struct PICClass PICClass;
+DECLARE_CLASS_CHECKERS(PICClass, PIC,
+                       TYPE_I8259)
 
 /**
  * PICClass:
  * @parent_realize: The parent's realizefn.
  */
-typedef struct PICClass {
+struct PICClass {
     PICCommonClass parent_class;
 
     DeviceRealize parent_realize;
-} PICClass;
+};
 
 #ifdef DEBUG_IRQ_LATENCY
 static int64_t irq_time[16];
diff --git a/hw/intc/lm32_pic.c b/hw/intc/lm32_pic.c
index 36de670c9e..e8b4015efd 100644
--- a/hw/intc/lm32_pic.c
+++ b/hw/intc/lm32_pic.c
@@ -27,9 +27,12 @@
 #include "hw/lm32/lm32_pic.h"
 #include "hw/intc/intc.h"
 #include "hw/irq.h"
+#include "qom/object.h"
 
 #define TYPE_LM32_PIC "lm32-pic"
-#define LM32_PIC(obj) OBJECT_CHECK(LM32PicState, (obj), TYPE_LM32_PIC)
+typedef struct LM32PicState LM32PicState;
+DECLARE_INSTANCE_CHECKER(LM32PicState, LM32_PIC,
+                         TYPE_LM32_PIC)
 
 struct LM32PicState {
     SysBusDevice parent_obj;
@@ -42,7 +45,6 @@ struct LM32PicState {
     /* statistics */
     uint64_t stats_irq_count[32];
 };
-typedef struct LM32PicState LM32PicState;
 
 static void update_irq(LM32PicState *s)
 {
diff --git a/hw/intc/loongson_liointc.c b/hw/intc/loongson_liointc.c
index 23ca51cc2e..30fb375b72 100644
--- a/hw/intc/loongson_liointc.c
+++ b/hw/intc/loongson_liointc.c
@@ -23,6 +23,7 @@
 #include "qemu/module.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define D(x)
 
@@ -43,8 +44,8 @@
 #define R_END                   0x64
 
 #define TYPE_LOONGSON_LIOINTC "loongson.liointc"
-#define LOONGSON_LIOINTC(obj) \
-        OBJECT_CHECK(struct loongson_liointc, (obj), TYPE_LOONGSON_LIOINTC)
+DECLARE_INSTANCE_CHECKER(struct loongson_liointc, LOONGSON_LIOINTC,
+                         TYPE_LOONGSON_LIOINTC)
 
 struct loongson_liointc {
     SysBusDevice parent_obj;
diff --git a/hw/intc/nios2_iic.c b/hw/intc/nios2_iic.c
index 86d088f9b5..aa26f059a1 100644
--- a/hw/intc/nios2_iic.c
+++ b/hw/intc/nios2_iic.c
@@ -25,16 +25,18 @@
 #include "hw/irq.h"
 #include "hw/sysbus.h"
 #include "cpu.h"
+#include "qom/object.h"
 
 #define TYPE_ALTERA_IIC "altera,iic"
-#define ALTERA_IIC(obj) \
-    OBJECT_CHECK(AlteraIIC, (obj), TYPE_ALTERA_IIC)
+typedef struct AlteraIIC AlteraIIC;
+DECLARE_INSTANCE_CHECKER(AlteraIIC, ALTERA_IIC,
+                         TYPE_ALTERA_IIC)
 
-typedef struct AlteraIIC {
+struct AlteraIIC {
     SysBusDevice  parent_obj;
     void         *cpu;
     qemu_irq      parent_irq;
-} AlteraIIC;
+};
 
 static void update_irq(AlteraIIC *pv)
 {
diff --git a/hw/intc/omap_intc.c b/hw/intc/omap_intc.c
index b8a1d1fd7d..d7183d035e 100644
--- a/hw/intc/omap_intc.c
+++ b/hw/intc/omap_intc.c
@@ -676,7 +676,7 @@ static const TypeInfo omap2_intc_info = {
 static const TypeInfo omap_intc_type_info = {
     .name          = TYPE_OMAP_INTC,
     .parent        = TYPE_SYS_BUS_DEVICE,
-    .instance_size = sizeof(struct omap_intr_handler_s),
+    .instance_size = sizeof(omap_intr_handler),
     .abstract      = true,
 };
 
diff --git a/hw/intc/ompic.c b/hw/intc/ompic.c
index c354427a61..a8ea621d9e 100644
--- a/hw/intc/ompic.c
+++ b/hw/intc/ompic.c
@@ -15,9 +15,12 @@
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
 #include "exec/memory.h"
+#include "qom/object.h"
 
 #define TYPE_OR1K_OMPIC "or1k-ompic"
-#define OR1K_OMPIC(obj) OBJECT_CHECK(OR1KOMPICState, (obj), TYPE_OR1K_OMPIC)
+typedef struct OR1KOMPICState OR1KOMPICState;
+DECLARE_INSTANCE_CHECKER(OR1KOMPICState, OR1K_OMPIC,
+                         TYPE_OR1K_OMPIC)
 
 #define OMPIC_CTRL_IRQ_ACK  (1 << 31)
 #define OMPIC_CTRL_IRQ_GEN  (1 << 30)
@@ -37,7 +40,6 @@
 #define OMPIC_MAX_CPUS 4 /* Real max is much higher, but dont waste memory */
 #define OMPIC_ADDRSPACE_SZ (OMPIC_MAX_CPUS * 2 * 4) /* 2 32-bit regs per cpu */
 
-typedef struct OR1KOMPICState OR1KOMPICState;
 typedef struct OR1KOMPICCPUState OR1KOMPICCPUState;
 
 struct OR1KOMPICCPUState {
diff --git a/hw/intc/openpic_kvm.c b/hw/intc/openpic_kvm.c
index e4bf47d885..8c8fbeddfe 100644
--- a/hw/intc/openpic_kvm.c
+++ b/hw/intc/openpic_kvm.c
@@ -35,13 +35,15 @@
 #include "sysemu/kvm.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define GCR_RESET        0x80000000
 
-#define KVM_OPENPIC(obj) \
-    OBJECT_CHECK(KVMOpenPICState, (obj), TYPE_KVM_OPENPIC)
+typedef struct KVMOpenPICState KVMOpenPICState;
+DECLARE_INSTANCE_CHECKER(KVMOpenPICState, KVM_OPENPIC,
+                         TYPE_KVM_OPENPIC)
 
-typedef struct KVMOpenPICState {
+struct KVMOpenPICState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -51,7 +53,7 @@ typedef struct KVMOpenPICState {
     uint32_t fd;
     uint32_t model;
     hwaddr mapped;
-} KVMOpenPICState;
+};
 
 static void kvm_openpic_set_irq(void *opaque, int n_IRQ, int level)
 {
diff --git a/hw/intc/pl190.c b/hw/intc/pl190.c
index e3bd3dd121..ee3206132f 100644
--- a/hw/intc/pl190.c
+++ b/hw/intc/pl190.c
@@ -13,6 +13,7 @@
 #include "migration/vmstate.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /* The number of virtual priority levels.  16 user vectors plus the
    unvectored IRQ.  Chained interrupts would require an additional level
@@ -21,9 +22,11 @@
 #define PL190_NUM_PRIO 17
 
 #define TYPE_PL190 "pl190"
-#define PL190(obj) OBJECT_CHECK(PL190State, (obj), TYPE_PL190)
+typedef struct PL190State PL190State;
+DECLARE_INSTANCE_CHECKER(PL190State, PL190,
+                         TYPE_PL190)
 
-typedef struct PL190State {
+struct PL190State {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -41,7 +44,7 @@ typedef struct PL190State {
     int prev_prio[PL190_NUM_PRIO];
     qemu_irq irq;
     qemu_irq fiq;
-} PL190State;
+};
 
 static const unsigned char pl190_id[] =
 { 0x90, 0x11, 0x04, 0x00, 0x0D, 0xf0, 0x05, 0xb1 };
diff --git a/hw/intc/puv3_intc.c b/hw/intc/puv3_intc.c
index 090d4839d1..8bceede256 100644
--- a/hw/intc/puv3_intc.c
+++ b/hw/intc/puv3_intc.c
@@ -12,6 +12,7 @@
 #include "qemu/osdep.h"
 #include "hw/irq.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
 #undef DEBUG_PUV3
 #include "hw/unicore32/puv3.h"
@@ -19,9 +20,11 @@
 #include "qemu/log.h"
 
 #define TYPE_PUV3_INTC "puv3_intc"
-#define PUV3_INTC(obj) OBJECT_CHECK(PUV3INTCState, (obj), TYPE_PUV3_INTC)
+typedef struct PUV3INTCState PUV3INTCState;
+DECLARE_INSTANCE_CHECKER(PUV3INTCState, PUV3_INTC,
+                         TYPE_PUV3_INTC)
 
-typedef struct PUV3INTCState {
+struct PUV3INTCState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -29,7 +32,7 @@ typedef struct PUV3INTCState {
 
     uint32_t reg_ICMR;
     uint32_t reg_ICPR;
-} PUV3INTCState;
+};
 
 /* Update interrupt status after enabled or pending bits have been changed.  */
 static void puv3_intc_update(PUV3INTCState *s)
diff --git a/hw/intc/s390_flic_kvm.c b/hw/intc/s390_flic_kvm.c
index dbd4e682ce..35d91afa55 100644
--- a/hw/intc/s390_flic_kvm.c
+++ b/hw/intc/s390_flic_kvm.c
@@ -24,6 +24,7 @@
 #include "hw/s390x/css.h"
 #include "migration/qemu-file-types.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define FLIC_SAVE_INITIAL_SIZE qemu_real_host_page_size
 #define FLIC_FAILED (-1UL)
@@ -569,16 +570,15 @@ static const VMStateDescription kvm_s390_flic_vmstate = {
     }
 };
 
-typedef struct KVMS390FLICStateClass {
+struct KVMS390FLICStateClass {
     S390FLICStateClass parent_class;
     DeviceRealize parent_realize;
-} KVMS390FLICStateClass;
+};
+typedef struct KVMS390FLICStateClass KVMS390FLICStateClass;
 
-#define KVM_S390_FLIC_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(KVMS390FLICStateClass, (obj), TYPE_KVM_S390_FLIC)
+DECLARE_CLASS_CHECKERS(KVMS390FLICStateClass, KVM_S390_FLIC,
+                       TYPE_KVM_S390_FLIC)
 
-#define KVM_S390_FLIC_CLASS(klass) \
-    OBJECT_CLASS_CHECK(KVMS390FLICStateClass, (klass), TYPE_KVM_S390_FLIC)
 
 static void kvm_s390_flic_realize(DeviceState *dev, Error **errp)
 {
diff --git a/hw/intc/slavio_intctl.c b/hw/intc/slavio_intctl.c
index c4cf9096eb..4a72ef5d0d 100644
--- a/hw/intc/slavio_intctl.c
+++ b/hw/intc/slavio_intctl.c
@@ -30,6 +30,7 @@
 #include "hw/intc/intc.h"
 #include "hw/irq.h"
 #include "trace.h"
+#include "qom/object.h"
 
 //#define DEBUG_IRQ_COUNT
 
@@ -58,10 +59,11 @@ typedef struct SLAVIO_CPUINTCTLState {
 } SLAVIO_CPUINTCTLState;
 
 #define TYPE_SLAVIO_INTCTL "slavio_intctl"
-#define SLAVIO_INTCTL(obj) \
-    OBJECT_CHECK(SLAVIO_INTCTLState, (obj), TYPE_SLAVIO_INTCTL)
+typedef struct SLAVIO_INTCTLState SLAVIO_INTCTLState;
+DECLARE_INSTANCE_CHECKER(SLAVIO_INTCTLState, SLAVIO_INTCTL,
+                         TYPE_SLAVIO_INTCTL)
 
-typedef struct SLAVIO_INTCTLState {
+struct SLAVIO_INTCTLState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -73,7 +75,7 @@ typedef struct SLAVIO_INTCTLState {
     uint32_t intregm_pending;
     uint32_t intregm_disabled;
     uint32_t target_cpu;
-} SLAVIO_INTCTLState;
+};
 
 #define INTCTL_MAXADDR 0xf
 #define INTCTL_SIZE (INTCTL_MAXADDR + 1)
diff --git a/hw/intc/xilinx_intc.c b/hw/intc/xilinx_intc.c
index 3e65e68619..4c4397b3d2 100644
--- a/hw/intc/xilinx_intc.c
+++ b/hw/intc/xilinx_intc.c
@@ -27,6 +27,7 @@
 #include "qemu/module.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define D(x)
 
@@ -41,7 +42,8 @@
 #define R_MAX       8
 
 #define TYPE_XILINX_INTC "xlnx.xps-intc"
-#define XILINX_INTC(obj) OBJECT_CHECK(struct xlx_pic, (obj), TYPE_XILINX_INTC)
+DECLARE_INSTANCE_CHECKER(struct xlx_pic, XILINX_INTC,
+                         TYPE_XILINX_INTC)
 
 struct xlx_pic
 {
diff --git a/hw/ipack/tpci200.c b/hw/ipack/tpci200.c
index f931d4df62..b35e1d2ac4 100644
--- a/hw/ipack/tpci200.c
+++ b/hw/ipack/tpci200.c
@@ -16,6 +16,7 @@
 #include "migration/vmstate.h"
 #include "qemu/bitops.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /* #define DEBUG_TPCI */
 
@@ -54,7 +55,7 @@
 #define REG_STATUS    0x0C
 #define IP_N_FROM_REG(REG) ((REG) / 2 - 1)
 
-typedef struct {
+struct TPCI200State {
     PCIDevice dev;
     IPackBus bus;
     MemoryRegion mmio;
@@ -67,12 +68,13 @@ typedef struct {
     uint8_t ctrl[N_MODULES];
     uint16_t status;
     uint8_t int_set;
-} TPCI200State;
+};
+typedef struct TPCI200State TPCI200State;
 
 #define TYPE_TPCI200 "tpci200"
 
-#define TPCI200(obj) \
-    OBJECT_CHECK(TPCI200State, (obj), TYPE_TPCI200)
+DECLARE_INSTANCE_CHECKER(TPCI200State, TPCI200,
+                         TYPE_TPCI200)
 
 static const uint8_t local_config_regs[] = {
     0x00, 0xFF, 0xFF, 0x0F, 0x00, 0xFC, 0xFF, 0x0F, 0x00, 0x00, 0x00,
diff --git a/hw/ipmi/ipmi_bmc_extern.c b/hw/ipmi/ipmi_bmc_extern.c
index f9a13e0a44..159831cbc5 100644
--- a/hw/ipmi/ipmi_bmc_extern.c
+++ b/hw/ipmi/ipmi_bmc_extern.c
@@ -36,6 +36,7 @@
 #include "hw/ipmi/ipmi.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #define VM_MSG_CHAR        0xA0 /* Marks end of message */
 #define VM_CMD_CHAR        0xA1 /* Marks end of a command */
@@ -61,9 +62,10 @@
 #define VM_CMD_GRACEFUL_SHUTDOWN   0x09
 
 #define TYPE_IPMI_BMC_EXTERN "ipmi-bmc-extern"
-#define IPMI_BMC_EXTERN(obj) OBJECT_CHECK(IPMIBmcExtern, (obj), \
-                                        TYPE_IPMI_BMC_EXTERN)
-typedef struct IPMIBmcExtern {
+typedef struct IPMIBmcExtern IPMIBmcExtern;
+DECLARE_INSTANCE_CHECKER(IPMIBmcExtern, IPMI_BMC_EXTERN,
+                         TYPE_IPMI_BMC_EXTERN)
+struct IPMIBmcExtern {
     IPMIBmc parent;
 
     CharBackend chr;
@@ -85,7 +87,7 @@ typedef struct IPMIBmcExtern {
 
     /* A reset event is pending to be sent upstream. */
     bool send_reset;
-} IPMIBmcExtern;
+};
 
 static unsigned char
 ipmb_checksum(const unsigned char *data, int size, unsigned char start)
diff --git a/hw/ipmi/isa_ipmi_bt.c b/hw/ipmi/isa_ipmi_bt.c
index c8dc0a09dc..0b69acc2e9 100644
--- a/hw/ipmi/isa_ipmi_bt.c
+++ b/hw/ipmi/isa_ipmi_bt.c
@@ -31,18 +31,20 @@
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #define TYPE_ISA_IPMI_BT "isa-ipmi-bt"
-#define ISA_IPMI_BT(obj) OBJECT_CHECK(ISAIPMIBTDevice, (obj), \
-                                      TYPE_ISA_IPMI_BT)
+typedef struct ISAIPMIBTDevice ISAIPMIBTDevice;
+DECLARE_INSTANCE_CHECKER(ISAIPMIBTDevice, ISA_IPMI_BT,
+                         TYPE_ISA_IPMI_BT)
 
-typedef struct ISAIPMIBTDevice {
+struct ISAIPMIBTDevice {
     ISADevice dev;
     int32_t isairq;
     qemu_irq irq;
     IPMIBT bt;
     uint32_t uuid;
-} ISAIPMIBTDevice;
+};
 
 static void isa_ipmi_bt_get_fwinfo(struct IPMIInterface *ii, IPMIFwInfo *info)
 {
diff --git a/hw/ipmi/isa_ipmi_kcs.c b/hw/ipmi/isa_ipmi_kcs.c
index 4b421c33f4..af69e9a008 100644
--- a/hw/ipmi/isa_ipmi_kcs.c
+++ b/hw/ipmi/isa_ipmi_kcs.c
@@ -31,18 +31,20 @@
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #define TYPE_ISA_IPMI_KCS "isa-ipmi-kcs"
-#define ISA_IPMI_KCS(obj) OBJECT_CHECK(ISAIPMIKCSDevice, (obj), \
-                                       TYPE_ISA_IPMI_KCS)
+typedef struct ISAIPMIKCSDevice ISAIPMIKCSDevice;
+DECLARE_INSTANCE_CHECKER(ISAIPMIKCSDevice, ISA_IPMI_KCS,
+                         TYPE_ISA_IPMI_KCS)
 
-typedef struct ISAIPMIKCSDevice {
+struct ISAIPMIKCSDevice {
     ISADevice dev;
     int32_t isairq;
     qemu_irq irq;
     IPMIKCS kcs;
     uint32_t uuid;
-} ISAIPMIKCSDevice;
+};
 
 static void isa_ipmi_kcs_get_fwinfo(IPMIInterface *ii, IPMIFwInfo *info)
 {
diff --git a/hw/ipmi/pci_ipmi_bt.c b/hw/ipmi/pci_ipmi_bt.c
index ba9cf016b5..7e5ecea6cc 100644
--- a/hw/ipmi/pci_ipmi_bt.c
+++ b/hw/ipmi/pci_ipmi_bt.c
@@ -26,17 +26,19 @@
 #include "qapi/error.h"
 #include "hw/ipmi/ipmi_bt.h"
 #include "hw/pci/pci.h"
+#include "qom/object.h"
 
 #define TYPE_PCI_IPMI_BT "pci-ipmi-bt"
-#define PCI_IPMI_BT(obj) OBJECT_CHECK(PCIIPMIBTDevice, (obj), \
-                                       TYPE_PCI_IPMI_BT)
+typedef struct PCIIPMIBTDevice PCIIPMIBTDevice;
+DECLARE_INSTANCE_CHECKER(PCIIPMIBTDevice, PCI_IPMI_BT,
+                         TYPE_PCI_IPMI_BT)
 
-typedef struct PCIIPMIBTDevice {
+struct PCIIPMIBTDevice {
     PCIDevice dev;
     IPMIBT bt;
     bool irq_enabled;
     uint32_t uuid;
-} PCIIPMIBTDevice;
+};
 
 static void pci_ipmi_raise_irq(IPMIBT *ik)
 {
diff --git a/hw/ipmi/pci_ipmi_kcs.c b/hw/ipmi/pci_ipmi_kcs.c
index 99f46152f4..c2a283a982 100644
--- a/hw/ipmi/pci_ipmi_kcs.c
+++ b/hw/ipmi/pci_ipmi_kcs.c
@@ -26,17 +26,19 @@
 #include "qapi/error.h"
 #include "hw/ipmi/ipmi_kcs.h"
 #include "hw/pci/pci.h"
+#include "qom/object.h"
 
 #define TYPE_PCI_IPMI_KCS "pci-ipmi-kcs"
-#define PCI_IPMI_KCS(obj) OBJECT_CHECK(PCIIPMIKCSDevice, (obj), \
-                                       TYPE_PCI_IPMI_KCS)
+typedef struct PCIIPMIKCSDevice PCIIPMIKCSDevice;
+DECLARE_INSTANCE_CHECKER(PCIIPMIKCSDevice, PCI_IPMI_KCS,
+                         TYPE_PCI_IPMI_KCS)
 
-typedef struct PCIIPMIKCSDevice {
+struct PCIIPMIKCSDevice {
     PCIDevice dev;
     IPMIKCS kcs;
     bool irq_enabled;
     uint32_t uuid;
-} PCIIPMIKCSDevice;
+};
 
 static void pci_ipmi_raise_irq(IPMIKCS *ik)
 {
diff --git a/hw/ipmi/smbus_ipmi.c b/hw/ipmi/smbus_ipmi.c
index f1a0148755..cd4c05dd1b 100644
--- a/hw/ipmi/smbus_ipmi.c
+++ b/hw/ipmi/smbus_ipmi.c
@@ -27,9 +27,12 @@
 #include "qapi/error.h"
 #include "qemu/error-report.h"
 #include "hw/ipmi/ipmi.h"
+#include "qom/object.h"
 
 #define TYPE_SMBUS_IPMI "smbus-ipmi"
-#define SMBUS_IPMI(obj) OBJECT_CHECK(SMBusIPMIDevice, (obj), TYPE_SMBUS_IPMI)
+typedef struct SMBusIPMIDevice SMBusIPMIDevice;
+DECLARE_INSTANCE_CHECKER(SMBusIPMIDevice, SMBUS_IPMI,
+                         TYPE_SMBUS_IPMI)
 
 #define SSIF_IPMI_REQUEST                       2
 #define SSIF_IPMI_MULTI_PART_REQUEST_START      6
@@ -44,7 +47,7 @@
 
 #define IPMI_GET_SYS_INTF_CAP_CMD 0x57
 
-typedef struct SMBusIPMIDevice {
+struct SMBusIPMIDevice {
     SMBusDevice parent;
 
     IPMIBmc *bmc;
@@ -67,7 +70,7 @@ typedef struct SMBusIPMIDevice {
     uint8_t waiting_rsp;
 
     uint32_t uuid;
-} SMBusIPMIDevice;
+};
 
 static void smbus_ipmi_handle_event(IPMIInterface *ii)
 {
diff --git a/hw/isa/i82378.c b/hw/isa/i82378.c
index 75a2da2881..1dcf525f3f 100644
--- a/hw/isa/i82378.c
+++ b/hw/isa/i82378.c
@@ -24,18 +24,20 @@
 #include "hw/timer/i8254.h"
 #include "migration/vmstate.h"
 #include "hw/audio/pcspk.h"
+#include "qom/object.h"
 
 #define TYPE_I82378 "i82378"
-#define I82378(obj) \
-    OBJECT_CHECK(I82378State, (obj), TYPE_I82378)
+typedef struct I82378State I82378State;
+DECLARE_INSTANCE_CHECKER(I82378State, I82378,
+                         TYPE_I82378)
 
-typedef struct I82378State {
+struct I82378State {
     PCIDevice parent_obj;
 
     qemu_irq out[2];
     qemu_irq *i8259;
     MemoryRegion io;
-} I82378State;
+};
 
 static const VMStateDescription vmstate_i82378 = {
     .name = "pci-i82378",
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index cd6e169d47..3303d2eab6 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -792,7 +792,7 @@ static void ich9_lpc_class_init(ObjectClass *klass, void *data)
 static const TypeInfo ich9_lpc_info = {
     .name       = TYPE_ICH9_LPC_DEVICE,
     .parent     = TYPE_PCI_DEVICE,
-    .instance_size = sizeof(struct ICH9LPCState),
+    .instance_size = sizeof(ICH9LPCState),
     .instance_init = ich9_lpc_initfn,
     .class_init  = ich9_lpc_class_init,
     .interfaces = (InterfaceInfo[]) {
diff --git a/hw/isa/pc87312.c b/hw/isa/pc87312.c
index 0cacbbc91b..8d7b8d3db2 100644
--- a/hw/isa/pc87312.c
+++ b/hw/isa/pc87312.c
@@ -371,7 +371,7 @@ static void pc87312_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo pc87312_type_info = {
-    .name          = TYPE_PC87312_SUPERIO,
+    .name          = TYPE_PC87312,
     .parent        = TYPE_ISA_SUPERIO,
     .instance_size = sizeof(PC87312State),
     .instance_init = pc87312_initfn,
diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c
index ac044afa95..8e3ac845b8 100644
--- a/hw/isa/piix4.c
+++ b/hw/isa/piix4.c
@@ -38,10 +38,11 @@
 #include "migration/vmstate.h"
 #include "sysemu/reset.h"
 #include "sysemu/runstate.h"
+#include "qom/object.h"
 
 PCIDevice *piix4_dev;
 
-typedef struct PIIX4State {
+struct PIIX4State {
     PCIDevice dev;
     qemu_irq cpu_intr;
     qemu_irq *isa;
@@ -50,10 +51,11 @@ typedef struct PIIX4State {
     /* Reset Control Register */
     MemoryRegion rcr_mem;
     uint8_t rcr;
-} PIIX4State;
+};
+typedef struct PIIX4State PIIX4State;
 
-#define PIIX4_PCI_DEVICE(obj) \
-    OBJECT_CHECK(PIIX4State, (obj), TYPE_PIIX4_PCI_DEVICE)
+DECLARE_INSTANCE_CHECKER(PIIX4State, PIIX4_PCI_DEVICE,
+                         TYPE_PIIX4_PCI_DEVICE)
 
 static void piix4_isa_reset(DeviceState *dev)
 {
diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index 18160ca445..1e6b48b2a2 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -27,6 +27,7 @@
 #include "qemu/module.h"
 #include "qemu/timer.h"
 #include "exec/address-spaces.h"
+#include "qom/object.h"
 
 /* #define DEBUG_VT82C686B */
 
@@ -42,15 +43,16 @@ typedef struct SuperIOConfig {
     uint8_t data;
 } SuperIOConfig;
 
-typedef struct VT82C686BState {
+struct VT82C686BState {
     PCIDevice dev;
     MemoryRegion superio;
     SuperIOConfig superio_conf;
-} VT82C686BState;
+};
+typedef struct VT82C686BState VT82C686BState;
 
 #define TYPE_VT82C686B_DEVICE "VT82C686B"
-#define VT82C686B_DEVICE(obj) \
-    OBJECT_CHECK(VT82C686BState, (obj), TYPE_VT82C686B_DEVICE)
+DECLARE_INSTANCE_CHECKER(VT82C686BState, VT82C686B_DEVICE,
+                         TYPE_VT82C686B_DEVICE)
 
 static void superio_ioport_writeb(void *opaque, hwaddr addr, uint64_t data,
                                   unsigned size)
@@ -159,34 +161,37 @@ static void vt82c686b_write_config(PCIDevice *d, uint32_t address,
 
 #define ACPI_DBG_IO_ADDR  0xb044
 
-typedef struct VT686PMState {
+struct VT686PMState {
     PCIDevice dev;
     MemoryRegion io;
     ACPIREGS ar;
     APMState apm;
     PMSMBus smb;
     uint32_t smb_io_base;
-} VT686PMState;
+};
+typedef struct VT686PMState VT686PMState;
 
-typedef struct VT686AC97State {
+struct VT686AC97State {
     PCIDevice dev;
-} VT686AC97State;
+};
+typedef struct VT686AC97State VT686AC97State;
 
-typedef struct VT686MC97State {
+struct VT686MC97State {
     PCIDevice dev;
-} VT686MC97State;
+};
+typedef struct VT686MC97State VT686MC97State;
 
 #define TYPE_VT82C686B_PM_DEVICE "VT82C686B_PM"
-#define VT82C686B_PM_DEVICE(obj) \
-    OBJECT_CHECK(VT686PMState, (obj), TYPE_VT82C686B_PM_DEVICE)
+DECLARE_INSTANCE_CHECKER(VT686PMState, VT82C686B_PM_DEVICE,
+                         TYPE_VT82C686B_PM_DEVICE)
 
 #define TYPE_VT82C686B_MC97_DEVICE "VT82C686B_MC97"
-#define VT82C686B_MC97_DEVICE(obj) \
-    OBJECT_CHECK(VT686MC97State, (obj), TYPE_VT82C686B_MC97_DEVICE)
+DECLARE_INSTANCE_CHECKER(VT686MC97State, VT82C686B_MC97_DEVICE,
+                         TYPE_VT82C686B_MC97_DEVICE)
 
 #define TYPE_VT82C686B_AC97_DEVICE "VT82C686B_AC97"
-#define VT82C686B_AC97_DEVICE(obj) \
-    OBJECT_CHECK(VT686AC97State, (obj), TYPE_VT82C686B_AC97_DEVICE)
+DECLARE_INSTANCE_CHECKER(VT686AC97State, VT82C686B_AC97_DEVICE,
+                         TYPE_VT82C686B_AC97_DEVICE)
 
 static void pm_update_sci(VT686PMState *s)
 {
diff --git a/hw/m68k/mcf_intc.c b/hw/m68k/mcf_intc.c
index e01e2e111b..7ee447240b 100644
--- a/hw/m68k/mcf_intc.c
+++ b/hw/m68k/mcf_intc.c
@@ -15,11 +15,14 @@
 #include "hw/irq.h"
 #include "hw/sysbus.h"
 #include "hw/m68k/mcf.h"
+#include "qom/object.h"
 
 #define TYPE_MCF_INTC "mcf-intc"
-#define MCF_INTC(obj) OBJECT_CHECK(mcf_intc_state, (obj), TYPE_MCF_INTC)
+typedef struct mcf_intc_state mcf_intc_state;
+DECLARE_INSTANCE_CHECKER(mcf_intc_state, MCF_INTC,
+                         TYPE_MCF_INTC)
 
-typedef struct {
+struct mcf_intc_state {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -30,7 +33,7 @@ typedef struct {
     uint8_t icr[64];
     M68kCPU *cpu;
     int active_vector;
-} mcf_intc_state;
+};
 
 static void mcf_intc_update(mcf_intc_state *s)
 {
diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c
index d3f25cd6d7..cbd913b0a2 100644
--- a/hw/m68k/next-cube.c
+++ b/hw/m68k/next-cube.c
@@ -21,6 +21,7 @@
 #include "hw/loader.h"
 #include "hw/scsi/esp.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 #include "hw/char/escc.h" /* ZILOG 8530 Serial Emulation */
 #include "hw/block/fdc.h"
 #include "hw/qdev-properties.h"
@@ -37,7 +38,9 @@
 #endif
 
 #define TYPE_NEXT_MACHINE MACHINE_TYPE_NAME("next-cube")
-#define NEXT_MACHINE(obj) OBJECT_CHECK(NeXTState, (obj), TYPE_NEXT_MACHINE)
+typedef struct NeXTState NeXTState;
+DECLARE_INSTANCE_CHECKER(NeXTState, NEXT_MACHINE,
+                         TYPE_NEXT_MACHINE)
 
 #define ENTRY       0x0100001e
 #define RAM_SIZE    0x4000000
@@ -69,7 +72,7 @@ typedef struct NextRtc {
     uint8_t retval;
 } NextRtc;
 
-typedef struct {
+struct NeXTState {
     MachineState parent;
 
     uint32_t int_mask;
@@ -87,7 +90,7 @@ typedef struct {
     uint32_t scr2;
 
     NextRtc rtc;
-} NeXTState;
+};
 
 /* Thanks to NeXT forums for this */
 /*
diff --git a/hw/m68k/next-kbd.c b/hw/m68k/next-kbd.c
index 2dff87be15..c7ca3fbbc9 100644
--- a/hw/m68k/next-kbd.c
+++ b/hw/m68k/next-kbd.c
@@ -36,8 +36,11 @@
 #include "ui/console.h"
 #include "sysemu/sysemu.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
-#define NEXTKBD(obj) OBJECT_CHECK(NextKBDState, (obj), TYPE_NEXTKBD)
+typedef struct NextKBDState NextKBDState;
+DECLARE_INSTANCE_CHECKER(NextKBDState, NEXTKBD,
+                         TYPE_NEXTKBD)
 
 /* following defintions from next68k netbsd */
 #define CSR_INT 0x00800000
@@ -63,12 +66,12 @@ typedef struct {
 } KBDQueue;
 
 
-typedef struct NextKBDState {
+struct NextKBDState {
     SysBusDevice sbd;
     MemoryRegion mr;
     KBDQueue queue;
     uint16_t shift;
-} NextKBDState;
+};
 
 static void queue_code(void *opaque, int code);
 
diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c
index 1ca482ad81..ce4b47c3e3 100644
--- a/hw/m68k/q800.c
+++ b/hw/m68k/q800.c
@@ -290,7 +290,7 @@ static void q800_init(MachineState *machine)
     /* SCSI */
 
     dev = qdev_new(TYPE_ESP);
-    sysbus_esp = ESP_STATE(dev);
+    sysbus_esp = ESP(dev);
     esp = &sysbus_esp->esp;
     esp->dma_memory_read = NULL;
     esp->dma_memory_write = NULL;
diff --git a/hw/microblaze/xlnx-zynqmp-pmu.c b/hw/microblaze/xlnx-zynqmp-pmu.c
index 5f994547f7..ab9924bf20 100644
--- a/hw/microblaze/xlnx-zynqmp-pmu.c
+++ b/hw/microblaze/xlnx-zynqmp-pmu.c
@@ -24,12 +24,14 @@
 
 #include "hw/intc/xlnx-zynqmp-ipi.h"
 #include "hw/intc/xlnx-pmu-iomod-intc.h"
+#include "qom/object.h"
 
 /* Define the PMU device */
 
 #define TYPE_XLNX_ZYNQMP_PMU_SOC "xlnx,zynqmp-pmu-soc"
-#define XLNX_ZYNQMP_PMU_SOC(obj) OBJECT_CHECK(XlnxZynqMPPMUSoCState, (obj), \
-                                              TYPE_XLNX_ZYNQMP_PMU_SOC)
+typedef struct XlnxZynqMPPMUSoCState XlnxZynqMPPMUSoCState;
+DECLARE_INSTANCE_CHECKER(XlnxZynqMPPMUSoCState, XLNX_ZYNQMP_PMU_SOC,
+                         TYPE_XLNX_ZYNQMP_PMU_SOC)
 
 #define XLNX_ZYNQMP_PMU_ROM_SIZE    0x8000
 #define XLNX_ZYNQMP_PMU_ROM_ADDR    0xFFD00000
@@ -46,7 +48,7 @@ static const uint64_t ipi_irq[XLNX_ZYNQMP_PMU_NUM_IPIS] = {
     19, 20, 21, 22,
 };
 
-typedef struct XlnxZynqMPPMUSoCState {
+struct XlnxZynqMPPMUSoCState {
     /*< private >*/
     DeviceState parent_obj;
 
@@ -54,7 +56,7 @@ typedef struct XlnxZynqMPPMUSoCState {
     MicroBlazeCPU cpu;
     XlnxPMUIOIntc intc;
     XlnxZynqMPIPI ipi[XLNX_ZYNQMP_PMU_NUM_IPIS];
-}  XlnxZynqMPPMUSoCState;
+};
 
 
 static void xlnx_zynqmp_pmu_soc_init(Object *obj)
diff --git a/hw/mips/boston.c b/hw/mips/boston.c
index 766458c015..1b3f69e949 100644
--- a/hw/mips/boston.c
+++ b/hw/mips/boston.c
@@ -41,11 +41,14 @@
 #include "sysemu/runstate.h"
 
 #include <libfdt.h>
+#include "qom/object.h"
 
 #define TYPE_MIPS_BOSTON "mips-boston"
-#define BOSTON(obj) OBJECT_CHECK(BostonState, (obj), TYPE_MIPS_BOSTON)
+typedef struct BostonState BostonState;
+DECLARE_INSTANCE_CHECKER(BostonState, BOSTON,
+                         TYPE_MIPS_BOSTON)
 
-typedef struct {
+struct BostonState {
     SysBusDevice parent_obj;
 
     MachineState *mach;
@@ -58,7 +61,7 @@ typedef struct {
 
     hwaddr kernel_entry;
     hwaddr fdt_base;
-} BostonState;
+};
 
 enum boston_plat_reg {
     PLAT_FPGA_BUILD     = 0x00,
diff --git a/hw/mips/gt64xxx_pci.c b/hw/mips/gt64xxx_pci.c
index 756ac9ae12..b613e1e011 100644
--- a/hw/mips/gt64xxx_pci.c
+++ b/hw/mips/gt64xxx_pci.c
@@ -35,6 +35,7 @@
 #include "hw/irq.h"
 #include "exec/address-spaces.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define GT_REGS                 (0x1000 >> 2)
 
@@ -230,10 +231,11 @@
 
 #define TYPE_GT64120_PCI_HOST_BRIDGE "gt64120"
 
-#define GT64120_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(GT64120State, (obj), TYPE_GT64120_PCI_HOST_BRIDGE)
+typedef struct GT64120State GT64120State;
+DECLARE_INSTANCE_CHECKER(GT64120State, GT64120_PCI_HOST_BRIDGE,
+                         TYPE_GT64120_PCI_HOST_BRIDGE)
 
-typedef struct GT64120State {
+struct GT64120State {
     PCIHostState parent_obj;
 
     uint32_t regs[GT_REGS];
@@ -243,7 +245,7 @@ typedef struct GT64120State {
     PCI_MAPPING_ENTRY(ISD);
     MemoryRegion pci0_mem;
     AddressSpace pci0_mem_as;
-} GT64120State;
+};
 
 /* Adjust range to avoid touching space which isn't mappable via PCI */
 /*
diff --git a/hw/mips/jazz.c b/hw/mips/jazz.c
index 82a6e3220e..47723093b6 100644
--- a/hw/mips/jazz.c
+++ b/hw/mips/jazz.c
@@ -309,7 +309,7 @@ static void mips_jazz_init(MachineState *machine,
 
     /* SCSI adapter */
     dev = qdev_new(TYPE_ESP);
-    sysbus_esp = ESP_STATE(dev);
+    sysbus_esp = ESP(dev);
     esp = &sysbus_esp->esp;
     esp->dma_memory_read = rc4030_dma_read;
     esp->dma_memory_write = rc4030_dma_write;
diff --git a/hw/mips/malta.c b/hw/mips/malta.c
index a59e20c81c..5b73ea4692 100644
--- a/hw/mips/malta.c
+++ b/hw/mips/malta.c
@@ -45,6 +45,7 @@
 #include "hw/loader.h"
 #include "elf.h"
 #include "exec/address-spaces.h"
+#include "qom/object.h"
 #include "hw/sysbus.h"             /* SysBusDevice */
 #include "qemu/host-utils.h"
 #include "sysemu/qtest.h"
@@ -88,14 +89,16 @@ typedef struct {
 } MaltaFPGAState;
 
 #define TYPE_MIPS_MALTA "mips-malta"
-#define MIPS_MALTA(obj) OBJECT_CHECK(MaltaState, (obj), TYPE_MIPS_MALTA)
+typedef struct MaltaState MaltaState;
+DECLARE_INSTANCE_CHECKER(MaltaState, MIPS_MALTA,
+                         TYPE_MIPS_MALTA)
 
-typedef struct {
+struct MaltaState {
     SysBusDevice parent_obj;
 
     MIPSCPSState cps;
     qemu_irq i8259[ISA_NUM_IRQS];
-} MaltaState;
+};
 
 static struct _loaderparams {
     int ram_size, ram_low_size;
diff --git a/hw/misc/applesmc.c b/hw/misc/applesmc.c
index 1c4addb201..dca3fba028 100644
--- a/hw/misc/applesmc.c
+++ b/hw/misc/applesmc.c
@@ -36,6 +36,7 @@
 #include "ui/console.h"
 #include "qemu/module.h"
 #include "qemu/timer.h"
+#include "qom/object.h"
 
 /* #define DEBUG_SMC */
 
@@ -89,9 +90,10 @@ struct AppleSMCData {
     QLIST_ENTRY(AppleSMCData) node;
 };
 
-#define APPLE_SMC(obj) OBJECT_CHECK(AppleSMCState, (obj), TYPE_APPLE_SMC)
-
 typedef struct AppleSMCState AppleSMCState;
+DECLARE_INSTANCE_CHECKER(AppleSMCState, APPLE_SMC,
+                         TYPE_APPLE_SMC)
+
 struct AppleSMCState {
     ISADevice parent_obj;
 
diff --git a/hw/misc/arm_integrator_debug.c b/hw/misc/arm_integrator_debug.c
index 3e23201ae6..822deffc0c 100644
--- a/hw/misc/arm_integrator_debug.c
+++ b/hw/misc/arm_integrator_debug.c
@@ -19,15 +19,17 @@
 #include "hw/misc/arm_integrator_debug.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
-#define INTEGRATOR_DEBUG(obj) \
-    OBJECT_CHECK(IntegratorDebugState, (obj), TYPE_INTEGRATOR_DEBUG)
+typedef struct IntegratorDebugState IntegratorDebugState;
+DECLARE_INSTANCE_CHECKER(IntegratorDebugState, INTEGRATOR_DEBUG,
+                         TYPE_INTEGRATOR_DEBUG)
 
-typedef struct {
+struct IntegratorDebugState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
-} IntegratorDebugState;
+};
 
 static uint64_t intdbg_control_read(void *opaque, hwaddr offset,
                                     unsigned size)
diff --git a/hw/misc/arm_l2x0.c b/hw/misc/arm_l2x0.c
index 2066c97f5f..93948c3bd8 100644
--- a/hw/misc/arm_l2x0.c
+++ b/hw/misc/arm_l2x0.c
@@ -24,14 +24,17 @@
 #include "migration/vmstate.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /* L2C-310 r3p2 */
 #define CACHE_ID 0x410000c8
 
 #define TYPE_ARM_L2X0 "l2x0"
-#define ARM_L2X0(obj) OBJECT_CHECK(L2x0State, (obj), TYPE_ARM_L2X0)
+typedef struct L2x0State L2x0State;
+DECLARE_INSTANCE_CHECKER(L2x0State, ARM_L2X0,
+                         TYPE_ARM_L2X0)
 
-typedef struct L2x0State {
+struct L2x0State {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -42,7 +45,7 @@ typedef struct L2x0State {
     uint32_t tag_ctrl;
     uint32_t filter_start;
     uint32_t filter_end;
-} L2x0State;
+};
 
 static const VMStateDescription vmstate_l2x0 = {
     .name = "l2x0",
diff --git a/hw/misc/arm_sysctl.c b/hw/misc/arm_sysctl.c
index a474bbdd19..f0f49e76e8 100644
--- a/hw/misc/arm_sysctl.c
+++ b/hw/misc/arm_sysctl.c
@@ -18,14 +18,16 @@
 #include "hw/arm/primecell.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define LOCK_VALUE 0xa05f
 
 #define TYPE_ARM_SYSCTL "realview_sysctl"
-#define ARM_SYSCTL(obj) \
-    OBJECT_CHECK(arm_sysctl_state, (obj), TYPE_ARM_SYSCTL)
+typedef struct arm_sysctl_state arm_sysctl_state;
+DECLARE_INSTANCE_CHECKER(arm_sysctl_state, ARM_SYSCTL,
+                         TYPE_ARM_SYSCTL)
 
-typedef struct {
+struct arm_sysctl_state {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -51,7 +53,7 @@ typedef struct {
     uint32_t *db_voltage;
     uint32_t db_num_clocks;
     uint32_t *db_clock_reset;
-} arm_sysctl_state;
+};
 
 static const VMStateDescription vmstate_arm_sysctl = {
     .name = "realview_sysctl",
diff --git a/hw/misc/debugexit.c b/hw/misc/debugexit.c
index 99a814f10c..c6b0cffd77 100644
--- a/hw/misc/debugexit.c
+++ b/hw/misc/debugexit.c
@@ -11,18 +11,20 @@
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TYPE_ISA_DEBUG_EXIT_DEVICE "isa-debug-exit"
-#define ISA_DEBUG_EXIT_DEVICE(obj) \
-     OBJECT_CHECK(ISADebugExitState, (obj), TYPE_ISA_DEBUG_EXIT_DEVICE)
+typedef struct ISADebugExitState ISADebugExitState;
+DECLARE_INSTANCE_CHECKER(ISADebugExitState, ISA_DEBUG_EXIT_DEVICE,
+                         TYPE_ISA_DEBUG_EXIT_DEVICE)
 
-typedef struct ISADebugExitState {
+struct ISADebugExitState {
     ISADevice parent_obj;
 
     uint32_t iobase;
     uint32_t iosize;
     MemoryRegion io;
-} ISADebugExitState;
+};
 
 static uint64_t debug_exit_read(void *opaque, hwaddr addr, unsigned size)
 {
diff --git a/hw/misc/eccmemctl.c b/hw/misc/eccmemctl.c
index aec447368e..468c2a491d 100644
--- a/hw/misc/eccmemctl.c
+++ b/hw/misc/eccmemctl.c
@@ -29,6 +29,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /* There are 3 versions of this chip used in SMP sun4m systems:
  * MCC (version 0, implementation 0) SS-600MP
@@ -126,9 +127,11 @@
 #define ECC_DIAG_MASK  (ECC_DIAG_SIZE - 1)
 
 #define TYPE_ECC_MEMCTL "eccmemctl"
-#define ECC_MEMCTL(obj) OBJECT_CHECK(ECCState, (obj), TYPE_ECC_MEMCTL)
+typedef struct ECCState ECCState;
+DECLARE_INSTANCE_CHECKER(ECCState, ECC_MEMCTL,
+                         TYPE_ECC_MEMCTL)
 
-typedef struct ECCState {
+struct ECCState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem, iomem_diag;
@@ -136,7 +139,7 @@ typedef struct ECCState {
     uint32_t regs[ECC_NREGS];
     uint8_t diag[ECC_DIAG_SIZE];
     uint32_t version;
-} ECCState;
+};
 
 static void ecc_mem_write(void *opaque, hwaddr addr, uint64_t val,
                           unsigned size)
diff --git a/hw/misc/edu.c b/hw/misc/edu.c
index ec617e63f3..0ff9d1ac78 100644
--- a/hw/misc/edu.c
+++ b/hw/misc/edu.c
@@ -28,12 +28,15 @@
 #include "hw/hw.h"
 #include "hw/pci/msi.h"
 #include "qemu/timer.h"
+#include "qom/object.h"
 #include "qemu/main-loop.h" /* iothread mutex */
 #include "qemu/module.h"
 #include "qapi/visitor.h"
 
 #define TYPE_PCI_EDU_DEVICE "edu"
-#define EDU(obj)        OBJECT_CHECK(EduState, obj, TYPE_PCI_EDU_DEVICE)
+typedef struct EduState EduState;
+DECLARE_INSTANCE_CHECKER(EduState, EDU,
+                         TYPE_PCI_EDU_DEVICE)
 
 #define FACT_IRQ        0x00000001
 #define DMA_IRQ         0x00000100
@@ -41,7 +44,7 @@
 #define DMA_START       0x40000
 #define DMA_SIZE        4096
 
-typedef struct {
+struct EduState {
     PCIDevice pdev;
     MemoryRegion mmio;
 
@@ -72,7 +75,7 @@ typedef struct {
     QEMUTimer dma_timer;
     char dma_buf[DMA_SIZE];
     uint64_t dma_mask;
-} EduState;
+};
 
 static bool edu_msi_enabled(EduState *edu)
 {
diff --git a/hw/misc/empty_slot.c b/hw/misc/empty_slot.c
index 9a011b1c11..57dcdfbe14 100644
--- a/hw/misc/empty_slot.c
+++ b/hw/misc/empty_slot.c
@@ -15,17 +15,20 @@
 #include "hw/misc/empty_slot.h"
 #include "qapi/error.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_EMPTY_SLOT "empty_slot"
-#define EMPTY_SLOT(obj) OBJECT_CHECK(EmptySlot, (obj), TYPE_EMPTY_SLOT)
+typedef struct EmptySlot EmptySlot;
+DECLARE_INSTANCE_CHECKER(EmptySlot, EMPTY_SLOT,
+                         TYPE_EMPTY_SLOT)
 
-typedef struct EmptySlot {
+struct EmptySlot {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     char *name;
     uint64_t size;
-} EmptySlot;
+};
 
 static uint64_t empty_slot_read(void *opaque, hwaddr addr,
                                 unsigned size)
diff --git a/hw/misc/exynos4210_clk.c b/hw/misc/exynos4210_clk.c
index bc1463ff89..4b469f6419 100644
--- a/hw/misc/exynos4210_clk.c
+++ b/hw/misc/exynos4210_clk.c
@@ -22,10 +22,12 @@
 #include "migration/vmstate.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TYPE_EXYNOS4210_CLK             "exynos4210.clk"
-#define EXYNOS4210_CLK(obj) \
-    OBJECT_CHECK(Exynos4210ClkState, (obj), TYPE_EXYNOS4210_CLK)
+typedef struct Exynos4210ClkState Exynos4210ClkState;
+DECLARE_INSTANCE_CHECKER(Exynos4210ClkState, EXYNOS4210_CLK,
+                         TYPE_EXYNOS4210_CLK)
 
 #define CLK_PLL_LOCKED                  BIT(29)
 
@@ -55,12 +57,12 @@ static const Exynos4210Reg exynos4210_clk_regs[] = {
 
 #define EXYNOS4210_REGS_NUM       ARRAY_SIZE(exynos4210_clk_regs)
 
-typedef struct Exynos4210ClkState {
+struct Exynos4210ClkState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     uint32_t reg[EXYNOS4210_REGS_NUM];
-} Exynos4210ClkState;
+};
 
 static uint64_t exynos4210_clk_read(void *opaque, hwaddr offset,
                                     unsigned size)
diff --git a/hw/misc/exynos4210_pmu.c b/hw/misc/exynos4210_pmu.c
index 500f28343f..b19b82a88c 100644
--- a/hw/misc/exynos4210_pmu.c
+++ b/hw/misc/exynos4210_pmu.c
@@ -29,6 +29,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "sysemu/runstate.h"
+#include "qom/object.h"
 
 #ifndef DEBUG_PMU
 #define DEBUG_PMU           0
@@ -394,15 +395,16 @@ static const Exynos4210PmuReg exynos4210_pmu_regs[] = {
 #define PMU_NUM_OF_REGISTERS ARRAY_SIZE(exynos4210_pmu_regs)
 
 #define TYPE_EXYNOS4210_PMU "exynos4210.pmu"
-#define EXYNOS4210_PMU(obj) \
-    OBJECT_CHECK(Exynos4210PmuState, (obj), TYPE_EXYNOS4210_PMU)
+typedef struct Exynos4210PmuState Exynos4210PmuState;
+DECLARE_INSTANCE_CHECKER(Exynos4210PmuState, EXYNOS4210_PMU,
+                         TYPE_EXYNOS4210_PMU)
 
-typedef struct Exynos4210PmuState {
+struct Exynos4210PmuState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     uint32_t reg[PMU_NUM_OF_REGISTERS];
-} Exynos4210PmuState;
+};
 
 static void exynos4210_pmu_poweroff(void)
 {
diff --git a/hw/misc/exynos4210_rng.c b/hw/misc/exynos4210_rng.c
index 38cd61c7ea..13ec6e188b 100644
--- a/hw/misc/exynos4210_rng.c
+++ b/hw/misc/exynos4210_rng.c
@@ -24,6 +24,7 @@
 #include "qemu/log.h"
 #include "qemu/guest-random.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define DEBUG_EXYNOS_RNG 0
 
@@ -35,8 +36,9 @@
     } while (0)
 
 #define TYPE_EXYNOS4210_RNG             "exynos4210.rng"
-#define EXYNOS4210_RNG(obj) \
-    OBJECT_CHECK(Exynos4210RngState, (obj), TYPE_EXYNOS4210_RNG)
+typedef struct Exynos4210RngState Exynos4210RngState;
+DECLARE_INSTANCE_CHECKER(Exynos4210RngState, EXYNOS4210_RNG,
+                         TYPE_EXYNOS4210_RNG)
 
 /*
  * Exynos4220, PRNG, only polling mode is supported.
@@ -68,7 +70,7 @@
 
 #define EXYNOS4210_RNG_REGS_MEM_SIZE            0x200
 
-typedef struct Exynos4210RngState {
+struct Exynos4210RngState {
     SysBusDevice parent_obj;
     MemoryRegion iomem;
 
@@ -79,7 +81,7 @@ typedef struct Exynos4210RngState {
     /* Register values */
     uint32_t reg_control;
     uint32_t reg_status;
-} Exynos4210RngState;
+};
 
 static bool exynos4210_rng_seed_ready(const Exynos4210RngState *s)
 {
diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index 2b6882face..e321e5cb69 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -38,6 +38,7 @@
 #include "qapi/visitor.h"
 
 #include "hw/misc/ivshmem.h"
+#include "qom/object.h"
 
 #define PCI_VENDOR_ID_IVSHMEM   PCI_VENDOR_ID_REDHAT_QUMRANET
 #define PCI_DEVICE_ID_IVSHMEM   0x1110
@@ -57,20 +58,21 @@
     } while (0)
 
 #define TYPE_IVSHMEM_COMMON "ivshmem-common"
-#define IVSHMEM_COMMON(obj) \
-    OBJECT_CHECK(IVShmemState, (obj), TYPE_IVSHMEM_COMMON)
+typedef struct IVShmemState IVShmemState;
+DECLARE_INSTANCE_CHECKER(IVShmemState, IVSHMEM_COMMON,
+                         TYPE_IVSHMEM_COMMON)
 
 #define TYPE_IVSHMEM_PLAIN "ivshmem-plain"
-#define IVSHMEM_PLAIN(obj) \
-    OBJECT_CHECK(IVShmemState, (obj), TYPE_IVSHMEM_PLAIN)
+DECLARE_INSTANCE_CHECKER(IVShmemState, IVSHMEM_PLAIN,
+                         TYPE_IVSHMEM_PLAIN)
 
 #define TYPE_IVSHMEM_DOORBELL "ivshmem-doorbell"
-#define IVSHMEM_DOORBELL(obj) \
-    OBJECT_CHECK(IVShmemState, (obj), TYPE_IVSHMEM_DOORBELL)
+DECLARE_INSTANCE_CHECKER(IVShmemState, IVSHMEM_DOORBELL,
+                         TYPE_IVSHMEM_DOORBELL)
 
 #define TYPE_IVSHMEM "ivshmem"
-#define IVSHMEM(obj) \
-    OBJECT_CHECK(IVShmemState, (obj), TYPE_IVSHMEM)
+DECLARE_INSTANCE_CHECKER(IVShmemState, IVSHMEM,
+                         TYPE_IVSHMEM)
 
 typedef struct Peer {
     int nb_eventfds;
@@ -83,7 +85,7 @@ typedef struct MSIVector {
     bool unmasked;
 } MSIVector;
 
-typedef struct IVShmemState {
+struct IVShmemState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -115,7 +117,7 @@ typedef struct IVShmemState {
     /* migration stuff */
     OnOffAuto master;
     Error *migration_blocker;
-} IVShmemState;
+};
 
 /* registers for the Inter-VM shared memory device */
 enum ivshmem_registers {
diff --git a/hw/misc/milkymist-hpdmc.c b/hw/misc/milkymist-hpdmc.c
index 61e86e6b34..f25715e09e 100644
--- a/hw/misc/milkymist-hpdmc.c
+++ b/hw/misc/milkymist-hpdmc.c
@@ -27,6 +27,7 @@
 #include "trace.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 enum {
     R_SYSTEM = 0,
@@ -43,8 +44,9 @@ enum {
 };
 
 #define TYPE_MILKYMIST_HPDMC "milkymist-hpdmc"
-#define MILKYMIST_HPDMC(obj) \
-    OBJECT_CHECK(MilkymistHpdmcState, (obj), TYPE_MILKYMIST_HPDMC)
+typedef struct MilkymistHpdmcState MilkymistHpdmcState;
+DECLARE_INSTANCE_CHECKER(MilkymistHpdmcState, MILKYMIST_HPDMC,
+                         TYPE_MILKYMIST_HPDMC)
 
 struct MilkymistHpdmcState {
     SysBusDevice parent_obj;
@@ -53,7 +55,6 @@ struct MilkymistHpdmcState {
 
     uint32_t regs[R_MAX];
 };
-typedef struct MilkymistHpdmcState MilkymistHpdmcState;
 
 static uint64_t hpdmc_read(void *opaque, hwaddr addr,
                            unsigned size)
diff --git a/hw/misc/milkymist-pfpu.c b/hw/misc/milkymist-pfpu.c
index 516825e83d..489bb8873f 100644
--- a/hw/misc/milkymist-pfpu.c
+++ b/hw/misc/milkymist-pfpu.c
@@ -31,6 +31,7 @@
 #include "qemu/module.h"
 #include "qemu/error-report.h"
 #include <math.h>
+#include "qom/object.h"
 
 /* #define TRACE_EXEC */
 
@@ -120,8 +121,9 @@ static const char *opcode_to_str[] = {
 #endif
 
 #define TYPE_MILKYMIST_PFPU "milkymist-pfpu"
-#define MILKYMIST_PFPU(obj) \
-    OBJECT_CHECK(MilkymistPFPUState, (obj), TYPE_MILKYMIST_PFPU)
+typedef struct MilkymistPFPUState MilkymistPFPUState;
+DECLARE_INSTANCE_CHECKER(MilkymistPFPUState, MILKYMIST_PFPU,
+                         TYPE_MILKYMIST_PFPU)
 
 struct MilkymistPFPUState {
     SysBusDevice parent_obj;
@@ -137,7 +139,6 @@ struct MilkymistPFPUState {
     int output_queue_pos;
     uint32_t output_queue[MAX_LATENCY];
 };
-typedef struct MilkymistPFPUState MilkymistPFPUState;
 
 static inline uint32_t
 get_dma_address(uint32_t base, uint32_t x, uint32_t y)
diff --git a/hw/misc/mst_fpga.c b/hw/misc/mst_fpga.c
index 81abdf8ede..f74d8cdd4a 100644
--- a/hw/misc/mst_fpga.c
+++ b/hw/misc/mst_fpga.c
@@ -16,6 +16,7 @@
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /* Mainstone FPGA for extern irqs */
 #define FPGA_GPIO_PIN	0
@@ -40,10 +41,11 @@
 #define MST_PCMCIA_CD1_IRQ	13
 
 #define TYPE_MAINSTONE_FPGA "mainstone-fpga"
-#define MAINSTONE_FPGA(obj) \
-    OBJECT_CHECK(mst_irq_state, (obj), TYPE_MAINSTONE_FPGA)
+typedef struct mst_irq_state mst_irq_state;
+DECLARE_INSTANCE_CHECKER(mst_irq_state, MAINSTONE_FPGA,
+                         TYPE_MAINSTONE_FPGA)
 
-typedef struct mst_irq_state{
+struct mst_irq_state {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -63,7 +65,7 @@ typedef struct mst_irq_state{
     uint32_t intsetclr;
     uint32_t pcmcia0;
     uint32_t pcmcia1;
-}mst_irq_state;
+};
 
 static void
 mst_fpga_set_irq(void *opaque, int irq, int level)
diff --git a/hw/misc/pc-testdev.c b/hw/misc/pc-testdev.c
index 8aa8e6549f..577a15bf58 100644
--- a/hw/misc/pc-testdev.c
+++ b/hw/misc/pc-testdev.c
@@ -39,10 +39,11 @@
 #include "qemu/module.h"
 #include "hw/irq.h"
 #include "hw/isa/isa.h"
+#include "qom/object.h"
 
 #define IOMEM_LEN    0x10000
 
-typedef struct PCTestdev {
+struct PCTestdev {
     ISADevice parent_obj;
 
     MemoryRegion ioport;
@@ -52,11 +53,12 @@ typedef struct PCTestdev {
     MemoryRegion iomem;
     uint32_t ioport_data;
     char iomem_buf[IOMEM_LEN];
-} PCTestdev;
+};
+typedef struct PCTestdev PCTestdev;
 
 #define TYPE_TESTDEV "pc-testdev"
-#define TESTDEV(obj) \
-     OBJECT_CHECK(PCTestdev, (obj), TYPE_TESTDEV)
+DECLARE_INSTANCE_CHECKER(PCTestdev, TESTDEV,
+                         TYPE_TESTDEV)
 
 static uint64_t test_irq_line_read(void *opaque, hwaddr addr, unsigned size)
 {
diff --git a/hw/misc/pca9552.c b/hw/misc/pca9552.c
index e4ccdeaf78..b7686e27d7 100644
--- a/hw/misc/pca9552.c
+++ b/hw/misc/pca9552.c
@@ -22,20 +22,20 @@
 #include "qapi/error.h"
 #include "qapi/visitor.h"
 #include "trace.h"
+#include "qom/object.h"
 
-typedef struct PCA955xClass {
+struct PCA955xClass {
     /*< private >*/
     I2CSlaveClass parent_class;
     /*< public >*/
 
     uint8_t pin_count;
     uint8_t max_reg;
-} PCA955xClass;
+};
+typedef struct PCA955xClass PCA955xClass;
 
-#define PCA955X_CLASS(klass) \
-    OBJECT_CLASS_CHECK(PCA955xClass, (klass), TYPE_PCA955X)
-#define PCA955X_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(PCA955xClass, (obj), TYPE_PCA955X)
+DECLARE_CLASS_CHECKERS(PCA955xClass, PCA955X,
+                       TYPE_PCA955X)
 
 #define PCA9552_LED_ON   0x0
 #define PCA9552_LED_OFF  0x1
diff --git a/hw/misc/pci-testdev.c b/hw/misc/pci-testdev.c
index 188de4d9cc..86d4816769 100644
--- a/hw/misc/pci-testdev.c
+++ b/hw/misc/pci-testdev.c
@@ -24,6 +24,7 @@
 #include "qemu/event_notifier.h"
 #include "qemu/module.h"
 #include "sysemu/kvm.h"
+#include "qom/object.h"
 
 typedef struct PCITestDevHdr {
     uint8_t test;
@@ -78,7 +79,7 @@ enum {
 #define IOTEST_ACCESS_TYPE uint8_t
 #define IOTEST_ACCESS_WIDTH (sizeof(uint8_t))
 
-typedef struct PCITestDevState {
+struct PCITestDevState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -90,12 +91,13 @@ typedef struct PCITestDevState {
 
     uint64_t membar_size;
     MemoryRegion membar;
-} PCITestDevState;
+};
+typedef struct PCITestDevState PCITestDevState;
 
 #define TYPE_PCI_TEST_DEV "pci-testdev"
 
-#define PCI_TEST_DEV(obj) \
-    OBJECT_CHECK(PCITestDevState, (obj), TYPE_PCI_TEST_DEV)
+DECLARE_INSTANCE_CHECKER(PCITestDevState, PCI_TEST_DEV,
+                         TYPE_PCI_TEST_DEV)
 
 #define IOTEST_IS_MEM(i) (strcmp(IOTEST_TYPE(i), "portio"))
 #define IOTEST_REGION(d, i) (IOTEST_IS_MEM(i) ?  &(d)->mmio : &(d)->portio)
diff --git a/hw/misc/puv3_pm.c b/hw/misc/puv3_pm.c
index 8989d363cd..cac8497f81 100644
--- a/hw/misc/puv3_pm.c
+++ b/hw/misc/puv3_pm.c
@@ -11,6 +11,7 @@
 
 #include "qemu/osdep.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
 #undef DEBUG_PUV3
 #include "hw/unicore32/puv3.h"
@@ -18,9 +19,11 @@
 #include "qemu/log.h"
 
 #define TYPE_PUV3_PM "puv3_pm"
-#define PUV3_PM(obj) OBJECT_CHECK(PUV3PMState, (obj), TYPE_PUV3_PM)
+typedef struct PUV3PMState PUV3PMState;
+DECLARE_INSTANCE_CHECKER(PUV3PMState, PUV3_PM,
+                         TYPE_PUV3_PM)
 
-typedef struct PUV3PMState {
+struct PUV3PMState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -31,7 +34,7 @@ typedef struct PUV3PMState {
     uint32_t reg_PLL_DDR_CFG;
     uint32_t reg_PLL_VGA_CFG;
     uint32_t reg_DIVCFG;
-} PUV3PMState;
+};
 
 static uint64_t puv3_pm_read(void *opaque, hwaddr offset,
         unsigned size)
diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c
index abb10bbcaf..598d5471a4 100644
--- a/hw/misc/pvpanic.c
+++ b/hw/misc/pvpanic.c
@@ -20,6 +20,7 @@
 #include "hw/nvram/fw_cfg.h"
 #include "hw/qdev-properties.h"
 #include "hw/misc/pvpanic.h"
+#include "qom/object.h"
 
 /* The bit of supported pv event, TODO: include uapi header and remove this */
 #define PVPANIC_F_PANICKED      0
@@ -29,8 +30,9 @@
 #define PVPANIC_PANICKED        (1 << PVPANIC_F_PANICKED)
 #define PVPANIC_CRASHLOADED     (1 << PVPANIC_F_CRASHLOADED)
 
-#define ISA_PVPANIC_DEVICE(obj)    \
-    OBJECT_CHECK(PVPanicState, (obj), TYPE_PVPANIC)
+typedef struct PVPanicState PVPanicState;
+DECLARE_INSTANCE_CHECKER(PVPanicState, ISA_PVPANIC_DEVICE,
+                         TYPE_PVPANIC)
 
 static void handle_event(int event)
 {
@@ -54,12 +56,12 @@ static void handle_event(int event)
 
 #include "hw/isa/isa.h"
 
-typedef struct PVPanicState {
+struct PVPanicState {
     ISADevice parent_obj;
 
     MemoryRegion io;
     uint16_t ioport;
-} PVPanicState;
+};
 
 /* return supported events on read */
 static uint64_t pvpanic_ioport_read(void *opaque, hwaddr addr, unsigned size)
diff --git a/hw/misc/sga.c b/hw/misc/sga.c
index 6866bf72cb..477f587ef3 100644
--- a/hw/misc/sga.c
+++ b/hw/misc/sga.c
@@ -29,15 +29,18 @@
 #include "hw/isa/isa.h"
 #include "hw/loader.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define SGABIOS_FILENAME "sgabios.bin"
 
 #define TYPE_SGA "sga"
-#define SGA(obj) OBJECT_CHECK(ISASGAState, (obj), TYPE_SGA)
+typedef struct ISASGAState ISASGAState;
+DECLARE_INSTANCE_CHECKER(ISASGAState, SGA,
+                         TYPE_SGA)
 
-typedef struct ISASGAState {
+struct ISASGAState {
     ISADevice parent_obj;
-} ISASGAState;
+};
 
 static void sga_realizefn(DeviceState *dev, Error **errp)
 {
diff --git a/hw/misc/slavio_misc.c b/hw/misc/slavio_misc.c
index 279b38dfc7..ab27ad462e 100644
--- a/hw/misc/slavio_misc.c
+++ b/hw/misc/slavio_misc.c
@@ -29,6 +29,7 @@
 #include "qemu/module.h"
 #include "sysemu/runstate.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /*
  * This is the auxio port, chip control and system control part of
@@ -39,9 +40,11 @@
  */
 
 #define TYPE_SLAVIO_MISC "slavio_misc"
-#define SLAVIO_MISC(obj) OBJECT_CHECK(MiscState, (obj), TYPE_SLAVIO_MISC)
+typedef struct MiscState MiscState;
+DECLARE_INSTANCE_CHECKER(MiscState, SLAVIO_MISC,
+                         TYPE_SLAVIO_MISC)
 
-typedef struct MiscState {
+struct MiscState {
     SysBusDevice parent_obj;
 
     MemoryRegion cfg_iomem;
@@ -59,17 +62,19 @@ typedef struct MiscState {
     uint8_t diag, mctrl;
     uint8_t sysctrl;
     uint16_t leds;
-} MiscState;
+};
 
 #define TYPE_APC "apc"
-#define APC(obj) OBJECT_CHECK(APCState, (obj), TYPE_APC)
+typedef struct APCState APCState;
+DECLARE_INSTANCE_CHECKER(APCState, APC,
+                         TYPE_APC)
 
-typedef struct APCState {
+struct APCState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     qemu_irq cpu_halt;
-} APCState;
+};
 
 #define MISC_SIZE 1
 #define LED_SIZE 2
diff --git a/hw/misc/tmp105.h b/hw/misc/tmp105.h
index 9ba05ecc9c..7ee8a496ff 100644
--- a/hw/misc/tmp105.h
+++ b/hw/misc/tmp105.h
@@ -16,9 +16,12 @@
 
 #include "hw/i2c/i2c.h"
 #include "hw/misc/tmp105_regs.h"
+#include "qom/object.h"
 
 #define TYPE_TMP105 "tmp105"
-#define TMP105(obj) OBJECT_CHECK(TMP105State, (obj), TYPE_TMP105)
+typedef struct TMP105State TMP105State;
+DECLARE_INSTANCE_CHECKER(TMP105State, TMP105,
+                         TYPE_TMP105)
 
 /**
  * TMP105State:
@@ -27,7 +30,7 @@
  *
  * @see_also: http://www.ti.com/lit/gpn/tmp105
  */
-typedef struct TMP105State {
+struct TMP105State {
     /*< private >*/
     I2CSlave i2c;
     /*< public >*/
@@ -42,6 +45,6 @@ typedef struct TMP105State {
     int16_t limit[2];
     int faults;
     uint8_t alarm;
-} TMP105State;
+};
 
 #endif
diff --git a/hw/misc/tmp421.c b/hw/misc/tmp421.c
index 49abe2d246..212d6e0e83 100644
--- a/hw/misc/tmp421.c
+++ b/hw/misc/tmp421.c
@@ -30,6 +30,7 @@
 #include "qapi/error.h"
 #include "qapi/visitor.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /* Manufacturer / Device ID's */
 #define TMP421_MANUFACTURER_ID          0x55
@@ -48,7 +49,7 @@ static const DeviceInfo devices[] = {
     { TMP423_DEVICE_ID, "tmp423" },
 };
 
-typedef struct TMP421State {
+struct TMP421State {
     /*< private >*/
     I2CSlave i2c;
     /*< public >*/
@@ -63,20 +64,19 @@ typedef struct TMP421State {
     uint8_t buf[2];
     uint8_t pointer;
 
-} TMP421State;
+};
+typedef struct TMP421State TMP421State;
 
-typedef struct TMP421Class {
+struct TMP421Class {
     I2CSlaveClass parent_class;
     DeviceInfo *dev;
-} TMP421Class;
+};
+typedef struct TMP421Class TMP421Class;
 
 #define TYPE_TMP421 "tmp421-generic"
-#define TMP421(obj) OBJECT_CHECK(TMP421State, (obj), TYPE_TMP421)
+DECLARE_OBJ_CHECKERS(TMP421State, TMP421Class,
+                     TMP421, TYPE_TMP421)
 
-#define TMP421_CLASS(klass) \
-     OBJECT_CLASS_CHECK(TMP421Class, (klass), TYPE_TMP421)
-#define TMP421_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(TMP421Class, (obj), TYPE_TMP421)
 
 /* the TMP421 registers */
 #define TMP421_STATUS_REG               0x08
diff --git a/hw/misc/zynq_slcr.c b/hw/misc/zynq_slcr.c
index f7472d1f3c..bedf09a6f5 100644
--- a/hw/misc/zynq_slcr.c
+++ b/hw/misc/zynq_slcr.c
@@ -23,6 +23,7 @@
 #include "qemu/module.h"
 #include "hw/registerfields.h"
 #include "hw/qdev-clock.h"
+#include "qom/object.h"
 
 #ifndef ZYNQ_SLCR_ERR_DEBUG
 #define ZYNQ_SLCR_ERR_DEBUG 0
@@ -182,9 +183,11 @@ REG32(DDRIOB, 0xb40)
 #define ZYNQ_SLCR_NUM_REGS      (ZYNQ_SLCR_MMIO_SIZE / 4)
 
 #define TYPE_ZYNQ_SLCR "xilinx,zynq_slcr"
-#define ZYNQ_SLCR(obj) OBJECT_CHECK(ZynqSLCRState, (obj), TYPE_ZYNQ_SLCR)
+typedef struct ZynqSLCRState ZynqSLCRState;
+DECLARE_INSTANCE_CHECKER(ZynqSLCRState, ZYNQ_SLCR,
+                         TYPE_ZYNQ_SLCR)
 
-typedef struct ZynqSLCRState {
+struct ZynqSLCRState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -194,7 +197,7 @@ typedef struct ZynqSLCRState {
     Clock *ps_clk;
     Clock *uart0_ref_clk;
     Clock *uart1_ref_clk;
-} ZynqSLCRState;
+};
 
 /*
  * return the output frequency of ARM/DDR/IO pll
diff --git a/hw/net/can/can_kvaser_pci.c b/hw/net/can/can_kvaser_pci.c
index 4b941370d0..168b3a620d 100644
--- a/hw/net/can/can_kvaser_pci.c
+++ b/hw/net/can/can_kvaser_pci.c
@@ -43,11 +43,13 @@
 #include "net/can_emu.h"
 
 #include "can_sja1000.h"
+#include "qom/object.h"
 
 #define TYPE_CAN_PCI_DEV "kvaser_pci"
 
-#define KVASER_PCI_DEV(obj) \
-    OBJECT_CHECK(KvaserPCIState, (obj), TYPE_CAN_PCI_DEV)
+typedef struct KvaserPCIState KvaserPCIState;
+DECLARE_INSTANCE_CHECKER(KvaserPCIState, KVASER_PCI_DEV,
+                         TYPE_CAN_PCI_DEV)
 
 #ifndef KVASER_PCI_VENDOR_ID1
 #define KVASER_PCI_VENDOR_ID1     0x10e8    /* the PCI device and vendor IDs */
@@ -78,7 +80,7 @@
 
 #define KVASER_PCI_XILINX_VERSION_NUMBER 13
 
-typedef struct KvaserPCIState {
+struct KvaserPCIState {
     /*< private >*/
     PCIDevice       dev;
     /*< public >*/
@@ -93,7 +95,7 @@ typedef struct KvaserPCIState {
     uint32_t        s5920_irqstate;
 
     CanBusState     *canbus;
-} KvaserPCIState;
+};
 
 static void kvaser_pci_irq_handler(void *opaque, int irq_num, int level)
 {
diff --git a/hw/net/can/can_mioe3680_pci.c b/hw/net/can/can_mioe3680_pci.c
index 695e762a8d..7a79e2605a 100644
--- a/hw/net/can/can_mioe3680_pci.c
+++ b/hw/net/can/can_mioe3680_pci.c
@@ -39,11 +39,13 @@
 #include "net/can_emu.h"
 
 #include "can_sja1000.h"
+#include "qom/object.h"
 
 #define TYPE_CAN_PCI_DEV "mioe3680_pci"
 
-#define MIOe3680_PCI_DEV(obj) \
-    OBJECT_CHECK(Mioe3680PCIState, (obj), TYPE_CAN_PCI_DEV)
+typedef struct Mioe3680PCIState Mioe3680PCIState;
+DECLARE_INSTANCE_CHECKER(Mioe3680PCIState, MIOe3680_PCI_DEV,
+                         TYPE_CAN_PCI_DEV)
 
 /* the PCI device and vendor IDs */
 #ifndef MIOe3680_PCI_VENDOR_ID1
@@ -59,7 +61,7 @@
 
 #define MIOe3680_PCI_BYTES_PER_SJA 0x80
 
-typedef struct Mioe3680PCIState {
+struct Mioe3680PCIState {
     /*< private >*/
     PCIDevice       dev;
     /*< public >*/
@@ -70,7 +72,7 @@ typedef struct Mioe3680PCIState {
 
     char            *model; /* The model that support, only SJA1000 now. */
     CanBusState     *canbus[MIOe3680_PCI_SJA_COUNT];
-} Mioe3680PCIState;
+};
 
 static void mioe3680_pci_reset(DeviceState *dev)
 {
diff --git a/hw/net/can/can_pcm3680_pci.c b/hw/net/can/can_pcm3680_pci.c
index 4218e63eb2..8ef4e74af0 100644
--- a/hw/net/can/can_pcm3680_pci.c
+++ b/hw/net/can/can_pcm3680_pci.c
@@ -39,11 +39,13 @@
 #include "net/can_emu.h"
 
 #include "can_sja1000.h"
+#include "qom/object.h"
 
 #define TYPE_CAN_PCI_DEV "pcm3680_pci"
 
-#define PCM3680i_PCI_DEV(obj) \
-    OBJECT_CHECK(Pcm3680iPCIState, (obj), TYPE_CAN_PCI_DEV)
+typedef struct Pcm3680iPCIState Pcm3680iPCIState;
+DECLARE_INSTANCE_CHECKER(Pcm3680iPCIState, PCM3680i_PCI_DEV,
+                         TYPE_CAN_PCI_DEV)
 
 /* the PCI device and vendor IDs */
 #ifndef PCM3680i_PCI_VENDOR_ID1
@@ -59,7 +61,7 @@
 
 #define PCM3680i_PCI_BYTES_PER_SJA 0x20
 
-typedef struct Pcm3680iPCIState {
+struct Pcm3680iPCIState {
     /*< private >*/
     PCIDevice       dev;
     /*< public >*/
@@ -70,7 +72,7 @@ typedef struct Pcm3680iPCIState {
 
     char            *model; /* The model that support, only SJA1000 now. */
     CanBusState     *canbus[PCM3680i_PCI_SJA_COUNT];
-} Pcm3680iPCIState;
+};
 
 static void pcm3680i_pci_reset(DeviceState *dev)
 {
diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index c54db0d62d..56b96e9b0f 100644
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -27,6 +27,7 @@
 #include "qemu/module.h"
 #include "qemu/timer.h"
 #include <zlib.h>
+#include "qom/object.h"
 
 //#define DEBUG_SONIC
 
@@ -150,9 +151,11 @@ do { printf("sonic ERROR: %s: " fmt, __func__ , ## __VA_ARGS__); } while (0)
 #define SONIC_DESC_ADDR  0xFFFE
 
 #define TYPE_DP8393X "dp8393x"
-#define DP8393X(obj) OBJECT_CHECK(dp8393xState, (obj), TYPE_DP8393X)
+typedef struct dp8393xState dp8393xState;
+DECLARE_INSTANCE_CHECKER(dp8393xState, DP8393X,
+                         TYPE_DP8393X)
 
-typedef struct dp8393xState {
+struct dp8393xState {
     SysBusDevice parent_obj;
 
     /* Hardware */
@@ -182,7 +185,7 @@ typedef struct dp8393xState {
     /* Memory access */
     MemoryRegion *dma_mr;
     AddressSpace as;
-} dp8393xState;
+};
 
 /* Accessor functions for values which are formed by
  * concatenating two 16 bit device registers. By putting these
diff --git a/hw/net/e1000.c b/hw/net/e1000.c
index c4d896a9e6..83347cbd87 100644
--- a/hw/net/e1000.c
+++ b/hw/net/e1000.c
@@ -39,6 +39,7 @@
 
 #include "e1000x_common.h"
 #include "trace.h"
+#include "qom/object.h"
 
 static const uint8_t bcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 
@@ -76,7 +77,7 @@ static int debugflags = DBGBIT(TXERR) | DBGBIT(GENERAL);
  *  Others never tested
  */
 
-typedef struct E1000State_st {
+struct E1000State_st {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -137,24 +138,22 @@ typedef struct E1000State_st {
     bool received_tx_tso;
     bool use_tso_for_migration;
     e1000x_txd_props mig_props;
-} E1000State;
+};
+typedef struct E1000State_st E1000State;
 
 #define chkflag(x)     (s->compat_flags & E1000_FLAG_##x)
 
-typedef struct E1000BaseClass {
+struct E1000BaseClass {
     PCIDeviceClass parent_class;
     uint16_t phy_id2;
-} E1000BaseClass;
+};
+typedef struct E1000BaseClass E1000BaseClass;
 
 #define TYPE_E1000_BASE "e1000-base"
 
-#define E1000(obj) \
-    OBJECT_CHECK(E1000State, (obj), TYPE_E1000_BASE)
+DECLARE_OBJ_CHECKERS(E1000State, E1000BaseClass,
+                     E1000, TYPE_E1000_BASE)
 
-#define E1000_CLASS(klass) \
-     OBJECT_CLASS_CHECK(E1000BaseClass, (klass), TYPE_E1000_BASE)
-#define E1000_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(E1000BaseClass, (obj), TYPE_E1000_BASE)
 
 static void
 e1000_link_up(E1000State *s)
diff --git a/hw/net/e1000e.c b/hw/net/e1000e.c
index fda34518c9..938d44f198 100644
--- a/hw/net/e1000e.c
+++ b/hw/net/e1000e.c
@@ -53,11 +53,14 @@
 
 #include "trace.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 #define TYPE_E1000E "e1000e"
-#define E1000E(obj) OBJECT_CHECK(E1000EState, (obj), TYPE_E1000E)
+typedef struct E1000EState E1000EState;
+DECLARE_INSTANCE_CHECKER(E1000EState, E1000E,
+                         TYPE_E1000E)
 
-typedef struct E1000EState {
+struct E1000EState {
     PCIDevice parent_obj;
     NICState *nic;
     NICConf conf;
@@ -79,7 +82,7 @@ typedef struct E1000EState {
 
     E1000ECore core;
 
-} E1000EState;
+};
 
 #define E1000E_MMIO_IDX     0
 #define E1000E_FLASH_IDX    1
diff --git a/hw/net/etraxfs_eth.c b/hw/net/etraxfs_eth.c
index 3408ceacb5..36d898ad16 100644
--- a/hw/net/etraxfs_eth.c
+++ b/hw/net/etraxfs_eth.c
@@ -30,6 +30,7 @@
 #include "qemu/error-report.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define D(x)
 
@@ -323,11 +324,11 @@ static void mdio_cycle(struct qemu_mdio *bus)
 #define FS_ETH_MAX_REGS      0x17
 
 #define TYPE_ETRAX_FS_ETH "etraxfs-eth"
-#define ETRAX_FS_ETH(obj) \
-    OBJECT_CHECK(ETRAXFSEthState, (obj), TYPE_ETRAX_FS_ETH)
+typedef struct ETRAXFSEthState ETRAXFSEthState;
+DECLARE_INSTANCE_CHECKER(ETRAXFSEthState, ETRAX_FS_ETH,
+                         TYPE_ETRAX_FS_ETH)
 
-typedef struct ETRAXFSEthState
-{
+struct ETRAXFSEthState {
     SysBusDevice parent_obj;
 
     MemoryRegion mmio;
@@ -348,7 +349,7 @@ typedef struct ETRAXFSEthState
 
     /* PHY.     */
     struct qemu_phy phy;
-} ETRAXFSEthState;
+};
 
 static void eth_validate_duplex(ETRAXFSEthState *eth)
 {
diff --git a/hw/net/fsl_etsec/etsec.h b/hw/net/fsl_etsec/etsec.h
index 7951c3ad65..0c929d9afd 100644
--- a/hw/net/fsl_etsec/etsec.h
+++ b/hw/net/fsl_etsec/etsec.h
@@ -28,6 +28,7 @@
 #include "hw/sysbus.h"
 #include "net/net.h"
 #include "hw/ptimer.h"
+#include "qom/object.h"
 
 /* Buffer Descriptors */
 
@@ -104,7 +105,7 @@ typedef struct eTSEC_Register {
     uint32_t    value;
 } eTSEC_Register;
 
-typedef struct eTSEC {
+struct eTSEC {
     SysBusDevice  busdev;
 
     MemoryRegion  io_area;
@@ -145,11 +146,12 @@ typedef struct eTSEC {
 
     /* Whether we should flush the rx queue when buffer becomes available. */
     bool need_flush;
-} eTSEC;
+};
+typedef struct eTSEC eTSEC;
 
 #define TYPE_ETSEC_COMMON "eTSEC"
-#define ETSEC_COMMON(obj) \
-     OBJECT_CHECK(eTSEC, (obj), TYPE_ETSEC_COMMON)
+DECLARE_INSTANCE_CHECKER(eTSEC, ETSEC_COMMON,
+                         TYPE_ETSEC_COMMON)
 
 #define eTSEC_TRANSMIT 1
 #define eTSEC_RECEIVE  2
diff --git a/hw/net/lan9118.c b/hw/net/lan9118.c
index e35f00fb9f..57a59accd0 100644
--- a/hw/net/lan9118.c
+++ b/hw/net/lan9118.c
@@ -25,6 +25,7 @@
 #include "qemu/module.h"
 /* For crc32 */
 #include <zlib.h>
+#include "qom/object.h"
 
 //#define DEBUG_LAN9118
 
@@ -180,9 +181,11 @@ static const VMStateDescription vmstate_lan9118_packet = {
     }
 };
 
-#define LAN9118(obj) OBJECT_CHECK(lan9118_state, (obj), TYPE_LAN9118)
+typedef struct lan9118_state lan9118_state;
+DECLARE_INSTANCE_CHECKER(lan9118_state, LAN9118,
+                         TYPE_LAN9118)
 
-typedef struct {
+struct lan9118_state {
     SysBusDevice parent_obj;
 
     NICState *nic;
@@ -258,7 +261,7 @@ typedef struct {
     uint32_t read_long;
 
     uint32_t mode_16bit;
-} lan9118_state;
+};
 
 static const VMStateDescription vmstate_lan9118 = {
     .name = "lan9118",
diff --git a/hw/net/milkymist-minimac2.c b/hw/net/milkymist-minimac2.c
index 1ba01754ee..41a8543edf 100644
--- a/hw/net/milkymist-minimac2.c
+++ b/hw/net/milkymist-minimac2.c
@@ -24,6 +24,7 @@
 
 #include "qemu/osdep.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 #include "cpu.h" /* FIXME: why does this use TARGET_PAGE_ALIGN? */
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
@@ -98,8 +99,9 @@ struct MilkymistMinimac2MdioState {
 typedef struct MilkymistMinimac2MdioState MilkymistMinimac2MdioState;
 
 #define TYPE_MILKYMIST_MINIMAC2 "milkymist-minimac2"
-#define MILKYMIST_MINIMAC2(obj) \
-    OBJECT_CHECK(MilkymistMinimac2State, (obj), TYPE_MILKYMIST_MINIMAC2)
+typedef struct MilkymistMinimac2State MilkymistMinimac2State;
+DECLARE_INSTANCE_CHECKER(MilkymistMinimac2State, MILKYMIST_MINIMAC2,
+                         TYPE_MILKYMIST_MINIMAC2)
 
 struct MilkymistMinimac2State {
     SysBusDevice parent_obj;
@@ -123,7 +125,6 @@ struct MilkymistMinimac2State {
     uint8_t *rx1_buf;
     uint8_t *tx_buf;
 };
-typedef struct MilkymistMinimac2State MilkymistMinimac2State;
 
 static const uint8_t preamble_sfd[] = {
         0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0xd5
diff --git a/hw/net/mipsnet.c b/hw/net/mipsnet.c
index 0c578c430c..61dbd575da 100644
--- a/hw/net/mipsnet.c
+++ b/hw/net/mipsnet.c
@@ -6,6 +6,7 @@
 #include "trace.h"
 #include "hw/sysbus.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 /* MIPSnet register offsets */
 
@@ -24,9 +25,11 @@
 #define MAX_ETH_FRAME_SIZE      1514
 
 #define TYPE_MIPS_NET "mipsnet"
-#define MIPS_NET(obj) OBJECT_CHECK(MIPSnetState, (obj), TYPE_MIPS_NET)
+typedef struct MIPSnetState MIPSnetState;
+DECLARE_INSTANCE_CHECKER(MIPSnetState, MIPS_NET,
+                         TYPE_MIPS_NET)
 
-typedef struct MIPSnetState {
+struct MIPSnetState {
     SysBusDevice parent_obj;
 
     uint32_t busy;
@@ -41,7 +44,7 @@ typedef struct MIPSnetState {
     qemu_irq irq;
     NICState *nic;
     NICConf conf;
-} MIPSnetState;
+};
 
 static void mipsnet_reset(MIPSnetState *s)
 {
diff --git a/hw/net/ne2000-isa.c b/hw/net/ne2000-isa.c
index a878056426..688a0cc4f6 100644
--- a/hw/net/ne2000-isa.c
+++ b/hw/net/ne2000-isa.c
@@ -31,16 +31,19 @@
 #include "qapi/error.h"
 #include "qapi/visitor.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
-#define ISA_NE2000(obj) OBJECT_CHECK(ISANE2000State, (obj), TYPE_ISA_NE2000)
+typedef struct ISANE2000State ISANE2000State;
+DECLARE_INSTANCE_CHECKER(ISANE2000State, ISA_NE2000,
+                         TYPE_ISA_NE2000)
 
-typedef struct ISANE2000State {
+struct ISANE2000State {
     ISADevice parent_obj;
 
     uint32_t iobase;
     uint32_t isairq;
     NE2000State ne2000;
-} ISANE2000State;
+};
 
 static NetClientInfo net_ne2000_isa_info = {
     .type = NET_CLIENT_DRIVER_NIC,
diff --git a/hw/net/opencores_eth.c b/hw/net/opencores_eth.c
index 2ba0dc8c2f..5cd204c30c 100644
--- a/hw/net/opencores_eth.c
+++ b/hw/net/opencores_eth.c
@@ -40,6 +40,7 @@
 #include "qemu/module.h"
 #include "net/eth.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /* RECSMALL is not used because it breaks tap networking in linux:
  * incoming ARP responses are too short
@@ -271,9 +272,11 @@ typedef struct desc {
 #define DEFAULT_PHY 1
 
 #define TYPE_OPEN_ETH "open_eth"
-#define OPEN_ETH(obj) OBJECT_CHECK(OpenEthState, (obj), TYPE_OPEN_ETH)
+typedef struct OpenEthState OpenEthState;
+DECLARE_INSTANCE_CHECKER(OpenEthState, OPEN_ETH,
+                         TYPE_OPEN_ETH)
 
-typedef struct OpenEthState {
+struct OpenEthState {
     SysBusDevice parent_obj;
 
     NICState *nic;
@@ -287,7 +290,7 @@ typedef struct OpenEthState {
     unsigned tx_desc;
     unsigned rx_desc;
     desc desc[128];
-} OpenEthState;
+};
 
 static desc *rx_desc(OpenEthState *s)
 {
diff --git a/hw/net/pcnet-pci.c b/hw/net/pcnet-pci.c
index 49d3e42e83..449970bc52 100644
--- a/hw/net/pcnet-pci.c
+++ b/hw/net/pcnet-pci.c
@@ -40,6 +40,7 @@
 #include "trace.h"
 
 #include "pcnet.h"
+#include "qom/object.h"
 
 //#define PCNET_DEBUG
 //#define PCNET_DEBUG_IO
@@ -51,17 +52,18 @@
 
 #define TYPE_PCI_PCNET "pcnet"
 
-#define PCI_PCNET(obj) \
-     OBJECT_CHECK(PCIPCNetState, (obj), TYPE_PCI_PCNET)
+typedef struct PCIPCNetState PCIPCNetState;
+DECLARE_INSTANCE_CHECKER(PCIPCNetState, PCI_PCNET,
+                         TYPE_PCI_PCNET)
 
-typedef struct {
+struct PCIPCNetState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
 
     PCNetState state;
     MemoryRegion io_bar;
-} PCIPCNetState;
+};
 
 static void pcnet_aprom_writeb(void *opaque, uint32_t addr, uint32_t val)
 {
diff --git a/hw/net/rocker/rocker.h b/hw/net/rocker/rocker.h
index e4c22db4ff..941c932265 100644
--- a/hw/net/rocker/rocker.h
+++ b/hw/net/rocker/rocker.h
@@ -20,6 +20,7 @@
 #define ROCKER_H
 
 #include "qemu/sockets.h"
+#include "qom/object.h"
 
 #if defined(DEBUG_ROCKER)
 #  define DPRINTF(fmt, ...) \
@@ -72,8 +73,8 @@ typedef struct desc_ring DescRing;
 
 #define TYPE_ROCKER "rocker"
 typedef struct rocker Rocker;
-#define ROCKER(obj) \
-    OBJECT_CHECK(Rocker, (obj), TYPE_ROCKER)
+DECLARE_INSTANCE_CHECKER(Rocker, ROCKER,
+                         TYPE_ROCKER)
 
 Rocker *rocker_find(const char *name);
 uint32_t rocker_fp_ports(Rocker *r);
diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
index ab93d78ab3..9246388f58 100644
--- a/hw/net/rtl8139.c
+++ b/hw/net/rtl8139.c
@@ -62,6 +62,7 @@
 #include "net/net.h"
 #include "net/eth.h"
 #include "sysemu/sysemu.h"
+#include "qom/object.h"
 
 /* debug RTL8139 card */
 //#define DEBUG_RTL8139 1
@@ -93,8 +94,9 @@ static inline GCC_FMT_ATTR(1, 2) int DPRINTF(const char *fmt, ...)
 
 #define TYPE_RTL8139 "rtl8139"
 
-#define RTL8139(obj) \
-     OBJECT_CHECK(RTL8139State, (obj), TYPE_RTL8139)
+typedef struct RTL8139State RTL8139State;
+DECLARE_INSTANCE_CHECKER(RTL8139State, RTL8139,
+                         TYPE_RTL8139)
 
 /* Symbolic offsets to registers. */
 enum RTL8139_registers {
@@ -431,7 +433,7 @@ typedef struct RTL8139TallyCounters
 /* Clears all tally counters */
 static void RTL8139TallyCounters_clear(RTL8139TallyCounters* counters);
 
-typedef struct RTL8139State {
+struct RTL8139State {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -513,7 +515,7 @@ typedef struct RTL8139State {
 
     /* Support migration to/from old versions */
     int rtl8139_mmio_io_addr_dummy;
-} RTL8139State;
+};
 
 /* Writes tally counters to memory via DMA */
 static void RTL8139TallyCounters_dma_write(RTL8139State *s, dma_addr_t tc_addr);
diff --git a/hw/net/smc91c111.c b/hw/net/smc91c111.c
index a347b6a4d5..9fad904321 100644
--- a/hw/net/smc91c111.c
+++ b/hw/net/smc91c111.c
@@ -19,14 +19,17 @@
 #include "qemu/module.h"
 /* For crc32 */
 #include <zlib.h>
+#include "qom/object.h"
 
 /* Number of 2k memory pages available.  */
 #define NUM_PACKETS 4
 
 #define TYPE_SMC91C111 "smc91c111"
-#define SMC91C111(obj) OBJECT_CHECK(smc91c111_state, (obj), TYPE_SMC91C111)
+typedef struct smc91c111_state smc91c111_state;
+DECLARE_INSTANCE_CHECKER(smc91c111_state, SMC91C111,
+                         TYPE_SMC91C111)
 
-typedef struct {
+struct smc91c111_state {
     SysBusDevice parent_obj;
 
     NICState *nic;
@@ -55,7 +58,7 @@ typedef struct {
     uint8_t int_level;
     uint8_t int_mask;
     MemoryRegion mmio;
-} smc91c111_state;
+};
 
 static const VMStateDescription vmstate_smc91c111 = {
     .name = "smc91c111",
diff --git a/hw/net/spapr_llan.c b/hw/net/spapr_llan.c
index 4cd02dda01..d34cb29607 100644
--- a/hw/net/spapr_llan.c
+++ b/hw/net/spapr_llan.c
@@ -38,6 +38,7 @@
 #include "trace.h"
 
 #include <libfdt.h>
+#include "qom/object.h"
 
 #define ETH_ALEN        6
 #define MAX_PACKET_SIZE 65536
@@ -84,8 +85,9 @@ typedef uint64_t vlan_bd_t;
 #define VLAN_MAX_BUFS        (VLAN_RX_BDS_LEN / 8)
 
 #define TYPE_VIO_SPAPR_VLAN_DEVICE "spapr-vlan"
-#define VIO_SPAPR_VLAN_DEVICE(obj) \
-     OBJECT_CHECK(SpaprVioVlan, (obj), TYPE_VIO_SPAPR_VLAN_DEVICE)
+typedef struct SpaprVioVlan SpaprVioVlan;
+DECLARE_INSTANCE_CHECKER(SpaprVioVlan, VIO_SPAPR_VLAN_DEVICE,
+                         TYPE_VIO_SPAPR_VLAN_DEVICE)
 
 #define RX_POOL_MAX_BDS 4096
 #define RX_MAX_POOLS 5
@@ -96,7 +98,7 @@ typedef struct {
     vlan_bd_t bds[RX_POOL_MAX_BDS];
 } RxBufPool;
 
-typedef struct SpaprVioVlan {
+struct SpaprVioVlan {
     SpaprVioDevice sdev;
     NICConf nicconf;
     NICState *nic;
@@ -108,7 +110,7 @@ typedef struct SpaprVioVlan {
     QEMUTimer *rxp_timer;
     uint32_t compat_flags;             /* Compatibility flags for migration */
     RxBufPool *rx_pool[RX_MAX_POOLS];  /* Receive buffer descriptor pools */
-} SpaprVioVlan;
+};
 
 static bool spapr_vlan_can_receive(NetClientState *nc)
 {
diff --git a/hw/net/stellaris_enet.c b/hw/net/stellaris_enet.c
index cb6e2509ea..9f13afa4e4 100644
--- a/hw/net/stellaris_enet.c
+++ b/hw/net/stellaris_enet.c
@@ -16,6 +16,7 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include <zlib.h>
+#include "qom/object.h"
 
 //#define DEBUG_STELLARIS_ENET 1
 
@@ -50,15 +51,16 @@ do { fprintf(stderr, "stellaris_enet: error: " fmt , ## __VA_ARGS__);} while (0)
 #define SE_TCTL_DUPLEX  0x08
 
 #define TYPE_STELLARIS_ENET "stellaris_enet"
-#define STELLARIS_ENET(obj) \
-    OBJECT_CHECK(stellaris_enet_state, (obj), TYPE_STELLARIS_ENET)
+typedef struct stellaris_enet_state stellaris_enet_state;
+DECLARE_INSTANCE_CHECKER(stellaris_enet_state, STELLARIS_ENET,
+                         TYPE_STELLARIS_ENET)
 
 typedef struct {
     uint8_t data[2048];
     uint32_t len;
 } StellarisEnetRxFrame;
 
-typedef struct {
+struct stellaris_enet_state {
     SysBusDevice parent_obj;
 
     uint32_t ris;
@@ -82,7 +84,7 @@ typedef struct {
     NICConf conf;
     qemu_irq irq;
     MemoryRegion mmio;
-} stellaris_enet_state;
+};
 
 static const VMStateDescription vmstate_rx_frame = {
     .name = "stellaris_enet/rx_frame",
diff --git a/hw/net/sungem.c b/hw/net/sungem.c
index e4b7b57704..91753830a7 100644
--- a/hw/net/sungem.c
+++ b/hw/net/sungem.c
@@ -19,10 +19,13 @@
 #include "hw/net/mii.h"
 #include "sysemu/sysemu.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_SUNGEM "sungem"
 
-#define SUNGEM(obj) OBJECT_CHECK(SunGEMState, (obj), TYPE_SUNGEM)
+typedef struct SunGEMState SunGEMState;
+DECLARE_INSTANCE_CHECKER(SunGEMState, SUNGEM,
+                         TYPE_SUNGEM)
 
 #define MAX_PACKET_SIZE 9016
 
@@ -192,7 +195,7 @@ struct gem_rxd {
 #define RXDCTRL_ALTMAC    0x2000000000000000ULL  /* Matched ALT MAC */
 
 
-typedef struct {
+struct SunGEMState {
     PCIDevice pdev;
 
     MemoryRegion sungem;
@@ -221,7 +224,7 @@ typedef struct {
     uint8_t tx_data[MAX_PACKET_SIZE];
     uint32_t tx_size;
     uint64_t tx_first_ctl;
-} SunGEMState;
+};
 
 
 static void sungem_eval_irq(SunGEMState *s)
diff --git a/hw/net/sunhme.c b/hw/net/sunhme.c
index bc48d46b9f..7364ba1019 100644
--- a/hw/net/sunhme.c
+++ b/hw/net/sunhme.c
@@ -33,6 +33,7 @@
 #include "net/eth.h"
 #include "sysemu/sysemu.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define HME_REG_SIZE                   0x8000
 
@@ -129,7 +130,9 @@
 #define MII_COMMAND_WRITE      0x1
 
 #define TYPE_SUNHME "sunhme"
-#define SUNHME(obj) OBJECT_CHECK(SunHMEState, (obj), TYPE_SUNHME)
+typedef struct SunHMEState SunHMEState;
+DECLARE_INSTANCE_CHECKER(SunHMEState, SUNHME,
+                         TYPE_SUNHME)
 
 /* Maximum size of buffer */
 #define HME_FIFO_SIZE          0x800
@@ -153,7 +156,7 @@
 
 #define HME_MII_REGS_SIZE      0x20
 
-typedef struct SunHMEState {
+struct SunHMEState {
     /*< private >*/
     PCIDevice parent_obj;
 
@@ -174,7 +177,7 @@ typedef struct SunHMEState {
     uint32_t mifregs[HME_MIF_REG_SIZE >> 2];
 
     uint16_t miiregs[HME_MII_REGS_SIZE];
-} SunHMEState;
+};
 
 static Property sunhme_properties[] = {
     DEFINE_NIC_PROPERTIES(SunHMEState, conf),
diff --git a/hw/net/tulip.h b/hw/net/tulip.h
index c3fcd4d4e1..87e3ab79bc 100644
--- a/hw/net/tulip.h
+++ b/hw/net/tulip.h
@@ -3,10 +3,12 @@
 
 #include "qemu/units.h"
 #include "net/net.h"
+#include "qom/object.h"
 
 #define TYPE_TULIP "tulip"
 typedef struct TULIPState TULIPState;
-#define TULIP(obj) OBJECT_CHECK(TULIPState, (obj), TYPE_TULIP)
+DECLARE_INSTANCE_CHECKER(TULIPState, TULIP,
+                         TYPE_TULIP)
 
 #define CSR(_x) ((_x) << 3)
 
diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c
index 7a6ca4ec35..eff299f629 100644
--- a/hw/net/vmxnet3.c
+++ b/hw/net/vmxnet3.c
@@ -35,6 +35,7 @@
 #include "vmware_utils.h"
 #include "net_tx_pkt.h"
 #include "net_rx_pkt.h"
+#include "qom/object.h"
 
 #define PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION 0x1
 #define VMXNET3_MSIX_BAR_SIZE 0x2000
@@ -128,15 +129,14 @@
 
 #define VMXNET_FLAG_IS_SET(field, flag) (((field) & (flag)) == (flag))
 
-typedef struct VMXNET3Class {
+struct VMXNET3Class {
     PCIDeviceClass parent_class;
     DeviceRealize parent_dc_realize;
-} VMXNET3Class;
+};
+typedef struct VMXNET3Class VMXNET3Class;
 
-#define VMXNET3_DEVICE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(VMXNET3Class, (klass), TYPE_VMXNET3)
-#define VMXNET3_DEVICE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(VMXNET3Class, (obj), TYPE_VMXNET3)
+DECLARE_CLASS_CHECKERS(VMXNET3Class, VMXNET3_DEVICE,
+                       TYPE_VMXNET3)
 
 static inline void vmxnet3_ring_init(PCIDevice *d,
                                      Vmxnet3Ring *ring,
diff --git a/hw/net/vmxnet3_defs.h b/hw/net/vmxnet3_defs.h
index 65780c576d..71440509ca 100644
--- a/hw/net/vmxnet3_defs.h
+++ b/hw/net/vmxnet3_defs.h
@@ -19,9 +19,12 @@
 
 #include "net/net.h"
 #include "hw/net/vmxnet3.h"
+#include "qom/object.h"
 
 #define TYPE_VMXNET3 "vmxnet3"
-#define VMXNET3(obj) OBJECT_CHECK(VMXNET3State, (obj), TYPE_VMXNET3)
+typedef struct VMXNET3State VMXNET3State;
+DECLARE_INSTANCE_CHECKER(VMXNET3State, VMXNET3,
+                         TYPE_VMXNET3)
 
 /* Device state and helper functions */
 #define VMXNET3_RX_RINGS_PER_QUEUE (2)
@@ -58,7 +61,7 @@ typedef struct {
     bool is_asserted;
 } Vmxnet3IntState;
 
-typedef struct {
+struct VMXNET3State {
         PCIDevice parent_obj;
         NICState *nic;
         NICConf conf;
@@ -132,6 +135,6 @@ typedef struct {
 
         /* Compatibility flags for migration */
         uint32_t compat_flags;
-} VMXNET3State;
+};
 
 #endif
diff --git a/hw/net/xgmac.c b/hw/net/xgmac.c
index 5bf1b61012..a066550023 100644
--- a/hw/net/xgmac.c
+++ b/hw/net/xgmac.c
@@ -32,6 +32,7 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "net/net.h"
+#include "qom/object.h"
 
 #ifdef DEBUG_XGMAC
 #define DEBUGF_BRK(message, args...) do { \
@@ -139,9 +140,11 @@ typedef struct RxTxStats {
 } RxTxStats;
 
 #define TYPE_XGMAC "xgmac"
-#define XGMAC(obj) OBJECT_CHECK(XgmacState, (obj), TYPE_XGMAC)
+typedef struct XgmacState XgmacState;
+DECLARE_INSTANCE_CHECKER(XgmacState, XGMAC,
+                         TYPE_XGMAC)
 
-typedef struct XgmacState {
+struct XgmacState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -153,7 +156,7 @@ typedef struct XgmacState {
 
     struct RxTxStats stats;
     uint32_t regs[R_MAX];
-} XgmacState;
+};
 
 static const VMStateDescription vmstate_rxtx_stats = {
     .name = "xgmac_stats",
diff --git a/hw/net/xilinx_axienet.c b/hw/net/xilinx_axienet.c
index 2e89f236b4..4e13786e50 100644
--- a/hw/net/xilinx_axienet.c
+++ b/hw/net/xilinx_axienet.c
@@ -35,6 +35,7 @@
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
 #include "hw/stream.h"
+#include "qom/object.h"
 
 #define DPHY(x)
 
@@ -42,16 +43,16 @@
 #define TYPE_XILINX_AXI_ENET_DATA_STREAM "xilinx-axienet-data-stream"
 #define TYPE_XILINX_AXI_ENET_CONTROL_STREAM "xilinx-axienet-control-stream"
 
-#define XILINX_AXI_ENET(obj) \
-     OBJECT_CHECK(XilinxAXIEnet, (obj), TYPE_XILINX_AXI_ENET)
+typedef struct XilinxAXIEnet XilinxAXIEnet;
+DECLARE_INSTANCE_CHECKER(XilinxAXIEnet, XILINX_AXI_ENET,
+                         TYPE_XILINX_AXI_ENET)
 
-#define XILINX_AXI_ENET_DATA_STREAM(obj) \
-     OBJECT_CHECK(XilinxAXIEnetStreamSlave, (obj),\
-     TYPE_XILINX_AXI_ENET_DATA_STREAM)
+typedef struct XilinxAXIEnetStreamSlave XilinxAXIEnetStreamSlave;
+DECLARE_INSTANCE_CHECKER(XilinxAXIEnetStreamSlave, XILINX_AXI_ENET_DATA_STREAM,
+                         TYPE_XILINX_AXI_ENET_DATA_STREAM)
 
-#define XILINX_AXI_ENET_CONTROL_STREAM(obj) \
-     OBJECT_CHECK(XilinxAXIEnetStreamSlave, (obj),\
-     TYPE_XILINX_AXI_ENET_CONTROL_STREAM)
+DECLARE_INSTANCE_CHECKER(XilinxAXIEnetStreamSlave, XILINX_AXI_ENET_CONTROL_STREAM,
+                         TYPE_XILINX_AXI_ENET_CONTROL_STREAM)
 
 /* Advertisement control register. */
 #define ADVERTISE_10FULL        0x0040  /* Try for 10mbps full-duplex  */
@@ -310,8 +311,6 @@ struct TEMAC  {
     void *parent;
 };
 
-typedef struct XilinxAXIEnetStreamSlave XilinxAXIEnetStreamSlave;
-typedef struct XilinxAXIEnet XilinxAXIEnet;
 
 struct XilinxAXIEnetStreamSlave {
     Object parent;
@@ -1046,7 +1045,7 @@ static const TypeInfo xilinx_enet_info = {
 static const TypeInfo xilinx_enet_data_stream_info = {
     .name          = TYPE_XILINX_AXI_ENET_DATA_STREAM,
     .parent        = TYPE_OBJECT,
-    .instance_size = sizeof(struct XilinxAXIEnetStreamSlave),
+    .instance_size = sizeof(XilinxAXIEnetStreamSlave),
     .class_init    = xilinx_enet_data_stream_class_init,
     .interfaces = (InterfaceInfo[]) {
             { TYPE_STREAM_SLAVE },
@@ -1057,7 +1056,7 @@ static const TypeInfo xilinx_enet_data_stream_info = {
 static const TypeInfo xilinx_enet_control_stream_info = {
     .name          = TYPE_XILINX_AXI_ENET_CONTROL_STREAM,
     .parent        = TYPE_OBJECT,
-    .instance_size = sizeof(struct XilinxAXIEnetStreamSlave),
+    .instance_size = sizeof(XilinxAXIEnetStreamSlave),
     .class_init    = xilinx_enet_control_stream_class_init,
     .interfaces = (InterfaceInfo[]) {
             { TYPE_STREAM_SLAVE },
diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c
index 71d16fef3d..6e09f7e422 100644
--- a/hw/net/xilinx_ethlite.c
+++ b/hw/net/xilinx_ethlite.c
@@ -24,6 +24,7 @@
 
 #include "qemu/osdep.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 #include "cpu.h" /* FIXME should not use tswap* */
 #include "hw/sysbus.h"
 #include "hw/irq.h"
@@ -52,8 +53,8 @@
 #define CTRL_S     0x1
 
 #define TYPE_XILINX_ETHLITE "xlnx.xps-ethernetlite"
-#define XILINX_ETHLITE(obj) \
-    OBJECT_CHECK(struct xlx_ethlite, (obj), TYPE_XILINX_ETHLITE)
+DECLARE_INSTANCE_CHECKER(struct xlx_ethlite, XILINX_ETHLITE,
+                         TYPE_XILINX_ETHLITE)
 
 struct xlx_ethlite
 {
diff --git a/hw/nvram/ds1225y.c b/hw/nvram/ds1225y.c
index d5cb922287..44fb7a94d3 100644
--- a/hw/nvram/ds1225y.c
+++ b/hw/nvram/ds1225y.c
@@ -29,6 +29,7 @@
 #include "trace.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct {
     MemoryRegion iomem;
@@ -109,13 +110,15 @@ static const VMStateDescription vmstate_nvram = {
 };
 
 #define TYPE_DS1225Y "ds1225y"
-#define DS1225Y(obj) OBJECT_CHECK(SysBusNvRamState, (obj), TYPE_DS1225Y)
+typedef struct SysBusNvRamState SysBusNvRamState;
+DECLARE_INSTANCE_CHECKER(SysBusNvRamState, DS1225Y,
+                         TYPE_DS1225Y)
 
-typedef struct {
+struct SysBusNvRamState {
     SysBusDevice parent_obj;
 
     NvRamState nvram;
-} SysBusNvRamState;
+};
 
 static void nvram_sysbus_realize(DeviceState *dev, Error **errp)
 {
diff --git a/hw/nvram/eeprom_at24c.c b/hw/nvram/eeprom_at24c.c
index d46a2bec3f..3e93dbbffb 100644
--- a/hw/nvram/eeprom_at24c.c
+++ b/hw/nvram/eeprom_at24c.c
@@ -14,6 +14,7 @@
 #include "hw/i2c/i2c.h"
 #include "hw/qdev-properties.h"
 #include "sysemu/block-backend.h"
+#include "qom/object.h"
 
 /* #define DEBUG_AT24C */
 
@@ -27,9 +28,11 @@
                             ## __VA_ARGS__)
 
 #define TYPE_AT24C_EE "at24c-eeprom"
-#define AT24C_EE(obj) OBJECT_CHECK(EEPROMState, (obj), TYPE_AT24C_EE)
+typedef struct EEPROMState EEPROMState;
+DECLARE_INSTANCE_CHECKER(EEPROMState, AT24C_EE,
+                         TYPE_AT24C_EE)
 
-typedef struct EEPROMState {
+struct EEPROMState {
     I2CSlave parent_obj;
 
     /* address counter */
@@ -45,7 +48,7 @@ typedef struct EEPROMState {
     uint8_t *mem;
 
     BlockBackend *blk;
-} EEPROMState;
+};
 
 static
 int at24c_eeprom_event(I2CSlave *s, enum i2c_event event)
diff --git a/hw/nvram/spapr_nvram.c b/hw/nvram/spapr_nvram.c
index 386513499f..57ccc174f2 100644
--- a/hw/nvram/spapr_nvram.c
+++ b/hw/nvram/spapr_nvram.c
@@ -39,18 +39,20 @@
 #include "hw/ppc/spapr.h"
 #include "hw/ppc/spapr_vio.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
-typedef struct SpaprNvram {
+struct SpaprNvram {
     SpaprVioDevice sdev;
     uint32_t size;
     uint8_t *buf;
     BlockBackend *blk;
     VMChangeStateEntry *vmstate;
-} SpaprNvram;
+};
+typedef struct SpaprNvram SpaprNvram;
 
 #define TYPE_VIO_SPAPR_NVRAM "spapr-nvram"
-#define VIO_SPAPR_NVRAM(obj) \
-     OBJECT_CHECK(SpaprNvram, (obj), TYPE_VIO_SPAPR_NVRAM)
+DECLARE_INSTANCE_CHECKER(SpaprNvram, VIO_SPAPR_NVRAM,
+                         TYPE_VIO_SPAPR_NVRAM)
 
 #define MIN_NVRAM_SIZE      (8 * KiB)
 #define DEFAULT_NVRAM_SIZE  (64 * KiB)
diff --git a/hw/pci-bridge/dec.c b/hw/pci-bridge/dec.c
index 677a310b96..e88998d88c 100644
--- a/hw/pci-bridge/dec.c
+++ b/hw/pci-bridge/dec.c
@@ -32,12 +32,15 @@
 #include "hw/pci/pci_host.h"
 #include "hw/pci/pci_bridge.h"
 #include "hw/pci/pci_bus.h"
+#include "qom/object.h"
 
-#define DEC_21154(obj) OBJECT_CHECK(DECState, (obj), TYPE_DEC_21154)
+typedef struct DECState DECState;
+DECLARE_INSTANCE_CHECKER(DECState, DEC_21154,
+                         TYPE_DEC_21154)
 
-typedef struct DECState {
+struct DECState {
     PCIHostState parent_obj;
-} DECState;
+};
 
 static int dec_map_irq(PCIDevice *pci_dev, int irq_num)
 {
diff --git a/hw/pci-bridge/gen_pcie_root_port.c b/hw/pci-bridge/gen_pcie_root_port.c
index bb26e272c1..67c71d566b 100644
--- a/hw/pci-bridge/gen_pcie_root_port.c
+++ b/hw/pci-bridge/gen_pcie_root_port.c
@@ -17,10 +17,12 @@
 #include "hw/pci/pcie_port.h"
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #define TYPE_GEN_PCIE_ROOT_PORT                "pcie-root-port"
-#define GEN_PCIE_ROOT_PORT(obj) \
-        OBJECT_CHECK(GenPCIERootPort, (obj), TYPE_GEN_PCIE_ROOT_PORT)
+typedef struct GenPCIERootPort GenPCIERootPort;
+DECLARE_INSTANCE_CHECKER(GenPCIERootPort, GEN_PCIE_ROOT_PORT,
+                         TYPE_GEN_PCIE_ROOT_PORT)
 
 #define GEN_PCIE_ROOT_PORT_AER_OFFSET           0x100
 #define GEN_PCIE_ROOT_PORT_ACS_OFFSET \
@@ -28,7 +30,7 @@
 
 #define GEN_PCIE_ROOT_PORT_MSIX_NR_VECTOR       1
 
-typedef struct GenPCIERootPort {
+struct GenPCIERootPort {
     /*< private >*/
     PCIESlot parent_obj;
     /*< public >*/
@@ -37,7 +39,7 @@ typedef struct GenPCIERootPort {
 
     /* additional resources to reserve */
     PCIResReserve res_reserve;
-} GenPCIERootPort;
+};
 
 static uint8_t gen_rp_aer_vector(const PCIDevice *d)
 {
diff --git a/hw/pci-bridge/pci_bridge_dev.c b/hw/pci-bridge/pci_bridge_dev.c
index 4a080b7c7b..b86d76caf3 100644
--- a/hw/pci-bridge/pci_bridge_dev.c
+++ b/hw/pci-bridge/pci_bridge_dev.c
@@ -31,11 +31,13 @@
 #include "exec/memory.h"
 #include "hw/pci/pci_bus.h"
 #include "hw/hotplug.h"
+#include "qom/object.h"
 
 #define TYPE_PCI_BRIDGE_DEV      "pci-bridge"
 #define TYPE_PCI_BRIDGE_SEAT_DEV "pci-bridge-seat"
-#define PCI_BRIDGE_DEV(obj) \
-    OBJECT_CHECK(PCIBridgeDev, (obj), TYPE_PCI_BRIDGE_DEV)
+typedef struct PCIBridgeDev PCIBridgeDev;
+DECLARE_INSTANCE_CHECKER(PCIBridgeDev, PCI_BRIDGE_DEV,
+                         TYPE_PCI_BRIDGE_DEV)
 
 struct PCIBridgeDev {
     /*< private >*/
@@ -52,7 +54,6 @@ struct PCIBridgeDev {
     /* additional resources to reserve */
     PCIResReserve res_reserve;
 };
-typedef struct PCIBridgeDev PCIBridgeDev;
 
 static void pci_bridge_dev_realize(PCIDevice *dev, Error **errp)
 {
diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c
index 22f9fc223b..aedded1064 100644
--- a/hw/pci-bridge/pci_expander_bridge.c
+++ b/hw/pci-bridge/pci_expander_bridge.c
@@ -22,35 +22,42 @@
 #include "qemu/module.h"
 #include "sysemu/numa.h"
 #include "hw/boards.h"
+#include "qom/object.h"
 
 #define TYPE_PXB_BUS "pxb-bus"
-#define PXB_BUS(obj) OBJECT_CHECK(PXBBus, (obj), TYPE_PXB_BUS)
+typedef struct PXBBus PXBBus;
+DECLARE_INSTANCE_CHECKER(PXBBus, PXB_BUS,
+                         TYPE_PXB_BUS)
 
 #define TYPE_PXB_PCIE_BUS "pxb-pcie-bus"
-#define PXB_PCIE_BUS(obj) OBJECT_CHECK(PXBBus, (obj), TYPE_PXB_PCIE_BUS)
+DECLARE_INSTANCE_CHECKER(PXBBus, PXB_PCIE_BUS,
+                         TYPE_PXB_PCIE_BUS)
 
-typedef struct PXBBus {
+struct PXBBus {
     /*< private >*/
     PCIBus parent_obj;
     /*< public >*/
 
     char bus_path[8];
-} PXBBus;
+};
 
 #define TYPE_PXB_DEVICE "pxb"
-#define PXB_DEV(obj) OBJECT_CHECK(PXBDev, (obj), TYPE_PXB_DEVICE)
+typedef struct PXBDev PXBDev;
+DECLARE_INSTANCE_CHECKER(PXBDev, PXB_DEV,
+                         TYPE_PXB_DEVICE)
 
 #define TYPE_PXB_PCIE_DEVICE "pxb-pcie"
-#define PXB_PCIE_DEV(obj) OBJECT_CHECK(PXBDev, (obj), TYPE_PXB_PCIE_DEVICE)
+DECLARE_INSTANCE_CHECKER(PXBDev, PXB_PCIE_DEV,
+                         TYPE_PXB_PCIE_DEVICE)
 
-typedef struct PXBDev {
+struct PXBDev {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
 
     uint8_t bus_nr;
     uint16_t numa_node;
-} PXBDev;
+};
 
 static PXBDev *convert_to_pxb(PCIDevice *dev)
 {
diff --git a/hw/pci-bridge/pcie_pci_bridge.c b/hw/pci-bridge/pcie_pci_bridge.c
index eade133968..abc98f8cd9 100644
--- a/hw/pci-bridge/pcie_pci_bridge.c
+++ b/hw/pci-bridge/pcie_pci_bridge.c
@@ -17,19 +17,21 @@
 #include "hw/pci/shpc.h"
 #include "hw/pci/slotid_cap.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
-typedef struct PCIEPCIBridge {
+struct PCIEPCIBridge {
     /*< private >*/
     PCIBridge parent_obj;
 
     OnOffAuto msi;
     MemoryRegion shpc_bar;
     /*< public >*/
-} PCIEPCIBridge;
+};
+typedef struct PCIEPCIBridge PCIEPCIBridge;
 
 #define TYPE_PCIE_PCI_BRIDGE_DEV "pcie-pci-bridge"
-#define PCIE_PCI_BRIDGE_DEV(obj) \
-        OBJECT_CHECK(PCIEPCIBridge, (obj), TYPE_PCIE_PCI_BRIDGE_DEV)
+DECLARE_INSTANCE_CHECKER(PCIEPCIBridge, PCIE_PCI_BRIDGE_DEV,
+                         TYPE_PCIE_PCI_BRIDGE_DEV)
 
 static void pcie_pci_bridge_realize(PCIDevice *d, Error **errp)
 {
diff --git a/hw/pci-host/bonito.c b/hw/pci-host/bonito.c
index 1405b3fc70..d10fbd39d3 100644
--- a/hw/pci-host/bonito.c
+++ b/hw/pci-host/bonito.c
@@ -52,6 +52,7 @@
 #include "exec/address-spaces.h"
 #include "hw/misc/unimp.h"
 #include "hw/registerfields.h"
+#include "qom/object.h"
 
 /* #define DEBUG_BONITO */
 
@@ -200,7 +201,7 @@ FIELD(BONGENCFG, PCIQUEUE,      12, 1)
 
 typedef struct BonitoState BonitoState;
 
-typedef struct PCIBonitoState {
+struct PCIBonitoState {
     PCIDevice dev;
 
     BonitoState *pcihost;
@@ -228,7 +229,8 @@ typedef struct PCIBonitoState {
     MemoryRegion bonito_pciio;
     MemoryRegion bonito_localio;
 
-} PCIBonitoState;
+};
+typedef struct PCIBonitoState PCIBonitoState;
 
 struct BonitoState {
     PCIHostState parent_obj;
@@ -238,12 +240,12 @@ struct BonitoState {
 };
 
 #define TYPE_BONITO_PCI_HOST_BRIDGE "Bonito-pcihost"
-#define BONITO_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(BonitoState, (obj), TYPE_BONITO_PCI_HOST_BRIDGE)
+DECLARE_INSTANCE_CHECKER(BonitoState, BONITO_PCI_HOST_BRIDGE,
+                         TYPE_BONITO_PCI_HOST_BRIDGE)
 
 #define TYPE_PCI_BONITO "Bonito"
-#define PCI_BONITO(obj) \
-    OBJECT_CHECK(PCIBonitoState, (obj), TYPE_PCI_BONITO)
+DECLARE_INSTANCE_CHECKER(PCIBonitoState, PCI_BONITO,
+                         TYPE_PCI_BONITO)
 
 static void bonito_writel(void *opaque, hwaddr addr,
                           uint64_t val, unsigned size)
diff --git a/hw/pci-host/grackle.c b/hw/pci-host/grackle.c
index 4b3af0c704..fd7d6dcc06 100644
--- a/hw/pci-host/grackle.c
+++ b/hw/pci-host/grackle.c
@@ -33,11 +33,13 @@
 #include "qapi/error.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
-#define GRACKLE_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(GrackleState, (obj), TYPE_GRACKLE_PCI_HOST_BRIDGE)
+typedef struct GrackleState GrackleState;
+DECLARE_INSTANCE_CHECKER(GrackleState, GRACKLE_PCI_HOST_BRIDGE,
+                         TYPE_GRACKLE_PCI_HOST_BRIDGE)
 
-typedef struct GrackleState {
+struct GrackleState {
     PCIHostState parent_obj;
 
     uint32_t ofw_addr;
@@ -46,7 +48,7 @@ typedef struct GrackleState {
     MemoryRegion pci_mmio;
     MemoryRegion pci_hole;
     MemoryRegion pci_io;
-} GrackleState;
+};
 
 /* Don't know if this matches real hardware, but it agrees with OHW.  */
 static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index 8ed2417f0c..93c62235ca 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -35,22 +35,24 @@
 #include "migration/vmstate.h"
 #include "qapi/visitor.h"
 #include "qemu/error-report.h"
+#include "qom/object.h"
 
 /*
  * I440FX chipset data sheet.
  * https://wiki.qemu.org/File:29054901.pdf
  */
 
-#define I440FX_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(I440FXState, (obj), TYPE_I440FX_PCI_HOST_BRIDGE)
+typedef struct I440FXState I440FXState;
+DECLARE_INSTANCE_CHECKER(I440FXState, I440FX_PCI_HOST_BRIDGE,
+                         TYPE_I440FX_PCI_HOST_BRIDGE)
 
-typedef struct I440FXState {
+struct I440FXState {
     PCIHostState parent_obj;
     Range pci_hole;
     uint64_t pci_hole64_size;
     bool pci_hole64_fix;
     uint32_t short_root_bus;
-} I440FXState;
+};
 
 #define I440FX_PAM      0x59
 #define I440FX_PAM_SIZE 7
diff --git a/hw/pci-host/pnv_phb3.c b/hw/pci-host/pnv_phb3.c
index 82132c12ca..a7f9685005 100644
--- a/hw/pci-host/pnv_phb3.c
+++ b/hw/pci-host/pnv_phb3.c
@@ -18,6 +18,7 @@
 #include "hw/ppc/pnv.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define phb3_error(phb, fmt, ...)                                       \
     qemu_log_mask(LOG_GUEST_ERROR, "phb3[%d:%d]: " fmt "\n",            \
@@ -877,8 +878,8 @@ static IOMMUTLBEntry pnv_phb3_translate_iommu(IOMMUMemoryRegion *iommu,
 }
 
 #define TYPE_PNV_PHB3_IOMMU_MEMORY_REGION "pnv-phb3-iommu-memory-region"
-#define PNV_PHB3_IOMMU_MEMORY_REGION(obj) \
-    OBJECT_CHECK(IOMMUMemoryRegion, (obj), TYPE_PNV_PHB3_IOMMU_MEMORY_REGION)
+DECLARE_INSTANCE_CHECKER(IOMMUMemoryRegion, PNV_PHB3_IOMMU_MEMORY_REGION,
+                         TYPE_PNV_PHB3_IOMMU_MEMORY_REGION)
 
 static void pnv_phb3_iommu_memory_region_class_init(ObjectClass *klass,
                                                     void *data)
diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c
index 75ad766fe0..03daf40a23 100644
--- a/hw/pci-host/pnv_phb4.c
+++ b/hw/pci-host/pnv_phb4.c
@@ -21,6 +21,7 @@
 #include "hw/ppc/pnv_xscom.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define phb_error(phb, fmt, ...)                                        \
     qemu_log_mask(LOG_GUEST_ERROR, "phb4[%d:%d]: " fmt "\n",            \
@@ -1042,8 +1043,8 @@ static IOMMUTLBEntry pnv_phb4_translate_iommu(IOMMUMemoryRegion *iommu,
 }
 
 #define TYPE_PNV_PHB4_IOMMU_MEMORY_REGION "pnv-phb4-iommu-memory-region"
-#define PNV_PHB4_IOMMU_MEMORY_REGION(obj) \
-    OBJECT_CHECK(IOMMUMemoryRegion, (obj), TYPE_PNV_PHB4_IOMMU_MEMORY_REGION)
+DECLARE_INSTANCE_CHECKER(IOMMUMemoryRegion, PNV_PHB4_IOMMU_MEMORY_REGION,
+                         TYPE_PNV_PHB4_IOMMU_MEMORY_REGION)
 
 static void pnv_phb4_iommu_memory_region_class_init(ObjectClass *klass,
                                                     void *data)
diff --git a/hw/pci-host/ppce500.c b/hw/pci-host/ppce500.c
index 1a62b2f8cc..f376374e24 100644
--- a/hw/pci-host/ppce500.c
+++ b/hw/pci-host/ppce500.c
@@ -24,6 +24,7 @@
 #include "qemu/bswap.h"
 #include "qemu/module.h"
 #include "hw/pci-host/ppce500.h"
+#include "qom/object.h"
 
 #ifdef DEBUG_PCI
 #define pci_debug(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__)
@@ -91,8 +92,9 @@ struct pci_inbound {
 
 #define TYPE_PPC_E500_PCI_HOST_BRIDGE "e500-pcihost"
 
-#define PPC_E500_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(PPCE500PCIState, (obj), TYPE_PPC_E500_PCI_HOST_BRIDGE)
+typedef struct PPCE500PCIState PPCE500PCIState;
+DECLARE_INSTANCE_CHECKER(PPCE500PCIState, PPC_E500_PCI_HOST_BRIDGE,
+                         TYPE_PPC_E500_PCI_HOST_BRIDGE)
 
 struct PPCE500PCIState {
     PCIHostState parent_obj;
@@ -114,8 +116,9 @@ struct PPCE500PCIState {
 };
 
 #define TYPE_PPC_E500_PCI_BRIDGE "e500-host-bridge"
-#define PPC_E500_PCI_BRIDGE(obj) \
-    OBJECT_CHECK(PPCE500PCIBridgeState, (obj), TYPE_PPC_E500_PCI_BRIDGE)
+typedef struct PPCE500PCIBridgeState PPCE500PCIBridgeState;
+DECLARE_INSTANCE_CHECKER(PPCE500PCIBridgeState, PPC_E500_PCI_BRIDGE,
+                         TYPE_PPC_E500_PCI_BRIDGE)
 
 struct PPCE500PCIBridgeState {
     /*< private >*/
@@ -125,8 +128,6 @@ struct PPCE500PCIBridgeState {
     MemoryRegion bar0;
 };
 
-typedef struct PPCE500PCIBridgeState PPCE500PCIBridgeState;
-typedef struct PPCE500PCIState PPCE500PCIState;
 
 static uint64_t pci_reg_read4(void *opaque, hwaddr addr,
                               unsigned size)
diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index 4b93fd2b01..b234fd7c8a 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -38,25 +38,28 @@
 #include "hw/or-irq.h"
 #include "exec/address-spaces.h"
 #include "elf.h"
+#include "qom/object.h"
 
 #define TYPE_RAVEN_PCI_DEVICE "raven"
 #define TYPE_RAVEN_PCI_HOST_BRIDGE "raven-pcihost"
 
-#define RAVEN_PCI_DEVICE(obj) \
-    OBJECT_CHECK(RavenPCIState, (obj), TYPE_RAVEN_PCI_DEVICE)
+typedef struct RavenPCIState RavenPCIState;
+DECLARE_INSTANCE_CHECKER(RavenPCIState, RAVEN_PCI_DEVICE,
+                         TYPE_RAVEN_PCI_DEVICE)
 
-typedef struct RavenPCIState {
+struct RavenPCIState {
     PCIDevice dev;
 
     uint32_t elf_machine;
     char *bios_name;
     MemoryRegion bios;
-} RavenPCIState;
+};
 
-#define RAVEN_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(PREPPCIState, (obj), TYPE_RAVEN_PCI_HOST_BRIDGE)
+typedef struct PRePPCIState PREPPCIState;
+DECLARE_INSTANCE_CHECKER(PREPPCIState, RAVEN_PCI_HOST_BRIDGE,
+                         TYPE_RAVEN_PCI_HOST_BRIDGE)
 
-typedef struct PRePPCIState {
+struct PRePPCIState {
     PCIHostState parent_obj;
 
     qemu_or_irq *or_irq;
@@ -75,7 +78,7 @@ typedef struct PRePPCIState {
 
     int contiguous_map;
     bool is_legacy_prep;
-} PREPPCIState;
+};
 
 #define BIOS_SIZE (1 * MiB)
 
diff --git a/hw/pci-host/sabre.c b/hw/pci-host/sabre.c
index 0cc68585f8..5ac6283623 100644
--- a/hw/pci-host/sabre.c
+++ b/hw/pci-host/sabre.c
@@ -338,7 +338,7 @@ static void pci_sabre_set_irq(void *opaque, int irq_num, int level)
 
 static void sabre_reset(DeviceState *d)
 {
-    SabreState *s = SABRE_DEVICE(d);
+    SabreState *s = SABRE(d);
     PCIDevice *pci_dev;
     unsigned int i;
     uint16_t cmd;
@@ -376,7 +376,7 @@ static const MemoryRegionOps pci_config_ops = {
 
 static void sabre_realize(DeviceState *dev, Error **errp)
 {
-    SabreState *s = SABRE_DEVICE(dev);
+    SabreState *s = SABRE(dev);
     PCIHostState *phb = PCI_HOST_BRIDGE(dev);
     SysBusDevice *sbd = SYS_BUS_DEVICE(s);
     PCIDevice *pci_dev;
@@ -421,7 +421,7 @@ static void sabre_realize(DeviceState *dev, Error **errp)
 
 static void sabre_init(Object *obj)
 {
-    SabreState *s = SABRE_DEVICE(obj);
+    SabreState *s = SABRE(obj);
     SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
     unsigned int i;
 
@@ -502,7 +502,7 @@ static const TypeInfo sabre_pci_info = {
 
 static char *sabre_ofw_unit_address(const SysBusDevice *dev)
 {
-    SabreState *s = SABRE_DEVICE(dev);
+    SabreState *s = SABRE(dev);
 
     return g_strdup_printf("%x,%x",
                (uint32_t)((s->special_base >> 32) & 0xffffffff),
diff --git a/hw/pci-host/versatile.c b/hw/pci-host/versatile.c
index 7e4aa467a2..3553277f94 100644
--- a/hw/pci-host/versatile.c
+++ b/hw/pci-host/versatile.c
@@ -18,6 +18,7 @@
 #include "hw/qdev-properties.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /* Old and buggy versions of QEMU used the wrong mapping from
  * PCI IRQs to system interrupt lines. Unfortunately the Linux
@@ -71,7 +72,7 @@ enum {
     PCI_VPB_IRQMAP_FORCE_OK,
 };
 
-typedef struct {
+struct PCIVPBState {
     PCIHostState parent_obj;
 
     qemu_irq irq[4];
@@ -100,7 +101,8 @@ typedef struct {
     uint32_t selfid;
     uint32_t flags;
     uint8_t irq_mapping;
-} PCIVPBState;
+};
+typedef struct PCIVPBState PCIVPBState;
 
 static void pci_vpb_update_window(PCIVPBState *s, int i)
 {
@@ -156,12 +158,12 @@ static const VMStateDescription pci_vpb_vmstate = {
 };
 
 #define TYPE_VERSATILE_PCI "versatile_pci"
-#define PCI_VPB(obj) \
-    OBJECT_CHECK(PCIVPBState, (obj), TYPE_VERSATILE_PCI)
+DECLARE_INSTANCE_CHECKER(PCIVPBState, PCI_VPB,
+                         TYPE_VERSATILE_PCI)
 
 #define TYPE_VERSATILE_PCI_HOST "versatile_pci_host"
-#define PCI_VPB_HOST(obj) \
-    OBJECT_CHECK(PCIDevice, (obj), TYPE_VERSATILE_PCI_HOST)
+DECLARE_INSTANCE_CHECKER(PCIDevice, PCI_VPB_HOST,
+                         TYPE_VERSATILE_PCI_HOST)
 
 typedef enum {
     PCI_IMAP0 = 0x0,
diff --git a/hw/ppc/e500-ccsr.h b/hw/ppc/e500-ccsr.h
index 12a2ba4b97..de4b9d2bc3 100644
--- a/hw/ppc/e500-ccsr.h
+++ b/hw/ppc/e500-ccsr.h
@@ -2,16 +2,19 @@
 #define E500_CCSR_H
 
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
-typedef struct PPCE500CCSRState {
+struct PPCE500CCSRState {
     /*< private >*/
     SysBusDevice parent;
     /*< public >*/
 
     MemoryRegion ccsr_space;
-} PPCE500CCSRState;
+};
+typedef struct PPCE500CCSRState PPCE500CCSRState;
 
 #define TYPE_CCSR "e500-ccsr"
-#define CCSR(obj) OBJECT_CHECK(PPCE500CCSRState, (obj), TYPE_CCSR)
+DECLARE_INSTANCE_CHECKER(PPCE500CCSRState, CCSR,
+                         TYPE_CCSR)
 
 #endif /* E500_CCSR_H */
diff --git a/hw/ppc/e500.h b/hw/ppc/e500.h
index 3fd9f825ca..63870751ff 100644
--- a/hw/ppc/e500.h
+++ b/hw/ppc/e500.h
@@ -3,8 +3,9 @@
 
 #include "hw/boards.h"
 #include "hw/platform-bus.h"
+#include "qom/object.h"
 
-typedef struct PPCE500MachineState {
+struct PPCE500MachineState {
     /*< private >*/
     MachineState parent_obj;
 
@@ -12,9 +13,10 @@ typedef struct PPCE500MachineState {
      * board supports dynamic sysbus devices
      */
     PlatformBusDevice *pbus_dev;
-} PPCE500MachineState;
+};
+typedef struct PPCE500MachineState PPCE500MachineState;
 
-typedef struct PPCE500MachineClass {
+struct PPCE500MachineClass {
     /*< private >*/
     MachineClass parent_class;
 
@@ -36,18 +38,15 @@ typedef struct PPCE500MachineClass {
     hwaddr pci_mmio_base;
     hwaddr pci_mmio_bus_base;
     hwaddr spin_base;
-} PPCE500MachineClass;
+};
+typedef struct PPCE500MachineClass PPCE500MachineClass;
 
 void ppce500_init(MachineState *machine);
 
 hwaddr booke206_page_size_to_tlb(uint64_t size);
 
 #define TYPE_PPCE500_MACHINE      "ppce500-base-machine"
-#define PPCE500_MACHINE(obj) \
-    OBJECT_CHECK(PPCE500MachineState, (obj), TYPE_PPCE500_MACHINE)
-#define PPCE500_MACHINE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(PPCE500MachineClass, obj, TYPE_PPCE500_MACHINE)
-#define PPCE500_MACHINE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(PPCE500MachineClass, klass, TYPE_PPCE500_MACHINE)
+DECLARE_OBJ_CHECKERS(PPCE500MachineState, PPCE500MachineClass,
+                     PPCE500_MACHINE, TYPE_PPCE500_MACHINE)
 
 #endif
diff --git a/hw/ppc/mac.h b/hw/ppc/mac.h
index 6af87d1fa0..2b6425f600 100644
--- a/hw/ppc/mac.h
+++ b/hw/ppc/mac.h
@@ -34,6 +34,7 @@
 #include "hw/misc/mos6522.h"
 #include "hw/pci/pci_host.h"
 #include "hw/pci-host/uninorth.h"
+#include "qom/object.h"
 
 /* SMP is not enabled, for now */
 #define MAX_CPUS 1
@@ -71,29 +72,31 @@
 
 /* Core99 machine */
 #define TYPE_CORE99_MACHINE MACHINE_TYPE_NAME("mac99")
-#define CORE99_MACHINE(obj) OBJECT_CHECK(Core99MachineState, (obj), \
-                                         TYPE_CORE99_MACHINE)
+typedef struct Core99MachineState Core99MachineState;
+DECLARE_INSTANCE_CHECKER(Core99MachineState, CORE99_MACHINE,
+                         TYPE_CORE99_MACHINE)
 
 #define CORE99_VIA_CONFIG_CUDA     0x0
 #define CORE99_VIA_CONFIG_PMU      0x1
 #define CORE99_VIA_CONFIG_PMU_ADB  0x2
 
-typedef struct Core99MachineState {
+struct Core99MachineState {
     /*< private >*/
     MachineState parent;
 
     uint8_t via_config;
-} Core99MachineState;
+};
 
 /* Grackle PCI */
 #define TYPE_GRACKLE_PCI_HOST_BRIDGE "grackle-pcihost"
 
 /* Mac NVRAM */
 #define TYPE_MACIO_NVRAM "macio-nvram"
-#define MACIO_NVRAM(obj) \
-    OBJECT_CHECK(MacIONVRAMState, (obj), TYPE_MACIO_NVRAM)
+typedef struct MacIONVRAMState MacIONVRAMState;
+DECLARE_INSTANCE_CHECKER(MacIONVRAMState, MACIO_NVRAM,
+                         TYPE_MACIO_NVRAM)
 
-typedef struct MacIONVRAMState {
+struct MacIONVRAMState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -103,7 +106,7 @@ typedef struct MacIONVRAMState {
 
     MemoryRegion mem;
     uint8_t *data;
-} MacIONVRAMState;
+};
 
 void pmac_format_nvram_partition (MacIONVRAMState *nvr, int len);
 #endif /* PPC_MAC_H */
diff --git a/hw/ppc/mpc8544_guts.c b/hw/ppc/mpc8544_guts.c
index b96ea36f98..b76b5e4701 100644
--- a/hw/ppc/mpc8544_guts.c
+++ b/hw/ppc/mpc8544_guts.c
@@ -22,6 +22,7 @@
 #include "sysemu/runstate.h"
 #include "cpu.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
 #define MPC8544_GUTS_MMIO_SIZE        0x1000
 #define MPC8544_GUTS_RSTCR_RESET      0x02
@@ -54,7 +55,9 @@
 #define MPC8544_GUTS_ADDR_SRDS2CR3    0xF18
 
 #define TYPE_MPC8544_GUTS "mpc8544-guts"
-#define MPC8544_GUTS(obj) OBJECT_CHECK(GutsState, (obj), TYPE_MPC8544_GUTS)
+typedef struct GutsState GutsState;
+DECLARE_INSTANCE_CHECKER(GutsState, MPC8544_GUTS,
+                         TYPE_MPC8544_GUTS)
 
 struct GutsState {
     /*< private >*/
@@ -64,7 +67,6 @@ struct GutsState {
     MemoryRegion iomem;
 };
 
-typedef struct GutsState GutsState;
 
 static uint64_t mpc8544_guts_read(void *opaque, hwaddr addr,
                                   unsigned size)
diff --git a/hw/ppc/ppc440_pcix.c b/hw/ppc/ppc440_pcix.c
index 2ee2d4f4fc..a564fcd600 100644
--- a/hw/ppc/ppc440_pcix.c
+++ b/hw/ppc/ppc440_pcix.c
@@ -30,6 +30,7 @@
 #include "hw/pci/pci_host.h"
 #include "exec/address-spaces.h"
 #include "trace.h"
+#include "qom/object.h"
 
 struct PLBOutMap {
     uint64_t la;
@@ -45,13 +46,14 @@ struct PLBInMap {
 };
 
 #define TYPE_PPC440_PCIX_HOST_BRIDGE "ppc440-pcix-host"
-#define PPC440_PCIX_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(PPC440PCIXState, (obj), TYPE_PPC440_PCIX_HOST_BRIDGE)
+typedef struct PPC440PCIXState PPC440PCIXState;
+DECLARE_INSTANCE_CHECKER(PPC440PCIXState, PPC440_PCIX_HOST_BRIDGE,
+                         TYPE_PPC440_PCIX_HOST_BRIDGE)
 
 #define PPC440_PCIX_NR_POMS 3
 #define PPC440_PCIX_NR_PIMS 3
 
-typedef struct PPC440PCIXState {
+struct PPC440PCIXState {
     PCIHostState parent_obj;
 
     PCIDevice *dev;
@@ -65,7 +67,7 @@ typedef struct PPC440PCIXState {
     MemoryRegion container;
     MemoryRegion iomem;
     MemoryRegion busmem;
-} PPC440PCIXState;
+};
 
 #define PPC440_REG_BASE     0x80000
 #define PPC440_REG_SIZE     0xff
diff --git a/hw/ppc/ppc440_uc.c b/hw/ppc/ppc440_uc.c
index 38fc392438..d9ca6bba9b 100644
--- a/hw/ppc/ppc440_uc.c
+++ b/hw/ppc/ppc440_uc.c
@@ -24,6 +24,7 @@
 #include "sysemu/block-backend.h"
 #include "sysemu/reset.h"
 #include "ppc440.h"
+#include "qom/object.h"
 
 /*****************************************************************************/
 /* L2 Cache as SRAM */
@@ -1032,10 +1033,11 @@ void ppc4xx_dma_init(CPUPPCState *env, int dcr_base)
 #include "hw/pci/pcie_host.h"
 
 #define TYPE_PPC460EX_PCIE_HOST "ppc460ex-pcie-host"
-#define PPC460EX_PCIE_HOST(obj) \
-    OBJECT_CHECK(PPC460EXPCIEState, (obj), TYPE_PPC460EX_PCIE_HOST)
+typedef struct PPC460EXPCIEState PPC460EXPCIEState;
+DECLARE_INSTANCE_CHECKER(PPC460EXPCIEState, PPC460EX_PCIE_HOST,
+                         TYPE_PPC460EX_PCIE_HOST)
 
-typedef struct PPC460EXPCIEState {
+struct PPC460EXPCIEState {
     PCIExpressHost host;
 
     MemoryRegion iomem;
@@ -1056,7 +1058,7 @@ typedef struct PPC460EXPCIEState {
     uint32_t reg_mask;
     uint32_t special;
     uint32_t cfg;
-} PPC460EXPCIEState;
+};
 
 #define DCRN_PCIE0_BASE 0x100
 #define DCRN_PCIE1_BASE 0x120
diff --git a/hw/ppc/ppc4xx_pci.c b/hw/ppc/ppc4xx_pci.c
index 503ef46b39..c24bac96c3 100644
--- a/hw/ppc/ppc4xx_pci.c
+++ b/hw/ppc/ppc4xx_pci.c
@@ -30,6 +30,7 @@
 #include "hw/pci/pci_host.h"
 #include "exec/address-spaces.h"
 #include "trace.h"
+#include "qom/object.h"
 
 struct PCIMasterMap {
     uint32_t la;
@@ -43,8 +44,9 @@ struct PCITargetMap {
     uint32_t la;
 };
 
-#define PPC4xx_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(PPC4xxPCIState, (obj), TYPE_PPC4xx_PCI_HOST_BRIDGE)
+typedef struct PPC4xxPCIState PPC4xxPCIState;
+DECLARE_INSTANCE_CHECKER(PPC4xxPCIState, PPC4xx_PCI_HOST_BRIDGE,
+                         TYPE_PPC4xx_PCI_HOST_BRIDGE)
 
 #define PPC4xx_PCI_NR_PMMS 3
 #define PPC4xx_PCI_NR_PTMS 2
@@ -59,7 +61,6 @@ struct PPC4xxPCIState {
     MemoryRegion container;
     MemoryRegion iomem;
 };
-typedef struct PPC4xxPCIState PPC4xxPCIState;
 
 #define PCIC0_CFGADDR       0x0
 #define PCIC0_CFGDATA       0x4
diff --git a/hw/ppc/ppce500_spin.c b/hw/ppc/ppce500_spin.c
index 66c1065db2..cd8000ad73 100644
--- a/hw/ppc/ppce500_spin.c
+++ b/hw/ppc/ppce500_spin.c
@@ -34,6 +34,7 @@
 #include "hw/sysbus.h"
 #include "sysemu/hw_accel.h"
 #include "e500.h"
+#include "qom/object.h"
 
 #define MAX_CPUS 32
 
@@ -46,14 +47,16 @@ typedef struct spin_info {
 } QEMU_PACKED SpinInfo;
 
 #define TYPE_E500_SPIN "e500-spin"
-#define E500_SPIN(obj) OBJECT_CHECK(SpinState, (obj), TYPE_E500_SPIN)
+typedef struct SpinState SpinState;
+DECLARE_INSTANCE_CHECKER(SpinState, E500_SPIN,
+                         TYPE_E500_SPIN)
 
-typedef struct SpinState {
+struct SpinState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     SpinInfo spin[MAX_CPUS];
-} SpinState;
+};
 
 static void spin_reset(DeviceState *dev)
 {
diff --git a/hw/ppc/prep_systemio.c b/hw/ppc/prep_systemio.c
index bbc51b6e9a..d1e2fb3f8b 100644
--- a/hw/ppc/prep_systemio.c
+++ b/hw/ppc/prep_systemio.c
@@ -28,6 +28,7 @@
 #include "hw/qdev-properties.h"
 #include "migration/vmstate.h"
 #include "exec/address-spaces.h"
+#include "qom/object.h"
 #include "qemu/error-report.h" /* for error_report() */
 #include "qemu/module.h"
 #include "sysemu/runstate.h"
@@ -35,13 +36,14 @@
 #include "trace.h"
 
 #define TYPE_PREP_SYSTEMIO "prep-systemio"
-#define PREP_SYSTEMIO(obj) \
-    OBJECT_CHECK(PrepSystemIoState, (obj), TYPE_PREP_SYSTEMIO)
+typedef struct PrepSystemIoState PrepSystemIoState;
+DECLARE_INSTANCE_CHECKER(PrepSystemIoState, PREP_SYSTEMIO,
+                         TYPE_PREP_SYSTEMIO)
 
 /* Bit as defined in PowerPC Reference Plaform v1.1, sect. 6.1.5, p. 132 */
 #define PREP_BIT(n) (1 << (7 - (n)))
 
-typedef struct PrepSystemIoState {
+struct PrepSystemIoState {
     ISADevice parent_obj;
     MemoryRegion ppc_parity_mem;
 
@@ -53,7 +55,7 @@ typedef struct PrepSystemIoState {
     uint8_t ibm_planar_id; /* 0x0852 */
     qemu_irq softreset_irq;
     PortioList portio;
-} PrepSystemIoState;
+};
 
 /* PORT 0092 -- Special Port 92 (Read/Write) */
 
diff --git a/hw/ppc/rs6000_mc.c b/hw/ppc/rs6000_mc.c
index ce97365f5e..8611ffa96d 100644
--- a/hw/ppc/rs6000_mc.c
+++ b/hw/ppc/rs6000_mc.c
@@ -26,12 +26,14 @@
 #include "hw/boards.h"
 #include "qapi/error.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_RS6000MC "rs6000-mc"
-#define RS6000MC_DEVICE(obj) \
-    OBJECT_CHECK(RS6000MCState, (obj), TYPE_RS6000MC)
+typedef struct RS6000MCState RS6000MCState;
+DECLARE_INSTANCE_CHECKER(RS6000MCState, RS6000MC,
+                         TYPE_RS6000MC)
 
-typedef struct RS6000MCState {
+struct RS6000MCState {
     ISADevice parent_obj;
     /* see US patent 5,684,979 for details (expired 2001-11-04) */
     uint32_t ram_size;
@@ -41,7 +43,7 @@ typedef struct RS6000MCState {
     uint32_t end_address[8];
     uint8_t port0820_index;
     PortioList portio;
-} RS6000MCState;
+};
 
 /* P0RT 0803 -- SIMM ID Register (32/8 MB) (Read Only) */
 
@@ -141,7 +143,7 @@ static const MemoryRegionPortio rs6000mc_port_list[] = {
 
 static void rs6000mc_realize(DeviceState *dev, Error **errp)
 {
-    RS6000MCState *s = RS6000MC_DEVICE(dev);
+    RS6000MCState *s = RS6000MC(dev);
     int socket = 0;
     unsigned int ram_size = s->ram_size / MiB;
     Error *local_err = NULL;
diff --git a/hw/ppc/spapr_rng.c b/hw/ppc/spapr_rng.c
index 85bf64d68e..6c99633faa 100644
--- a/hw/ppc/spapr_rng.c
+++ b/hw/ppc/spapr_rng.c
@@ -28,9 +28,11 @@
 #include "hw/ppc/spapr.h"
 #include "hw/qdev-properties.h"
 #include "kvm_ppc.h"
+#include "qom/object.h"
 
-#define SPAPR_RNG(obj) \
-    OBJECT_CHECK(SpaprRngState, (obj), TYPE_SPAPR_RNG)
+typedef struct SpaprRngState SpaprRngState;
+DECLARE_INSTANCE_CHECKER(SpaprRngState, SPAPR_RNG,
+                         TYPE_SPAPR_RNG)
 
 struct SpaprRngState {
     /*< private >*/
@@ -38,7 +40,6 @@ struct SpaprRngState {
     RngBackend *backend;
     bool use_kvm;
 };
-typedef struct SpaprRngState SpaprRngState;
 
 struct HRandomData {
     QemuSemaphore sem;
diff --git a/hw/rdma/vmw/pvrdma.h b/hw/rdma/vmw/pvrdma.h
index a8a04a253c..1d36a76f1e 100644
--- a/hw/rdma/vmw/pvrdma.h
+++ b/hw/rdma/vmw/pvrdma.h
@@ -29,6 +29,7 @@
 #include "standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h"
 #include "standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h"
 #include "pvrdma_dev_ring.h"
+#include "qom/object.h"
 
 /* BARs */
 #define RDMA_MSIX_BAR_IDX    0
@@ -78,7 +79,7 @@ typedef struct PVRDMADevStats {
     uint64_t interrupts;
 } PVRDMADevStats;
 
-typedef struct PVRDMADev {
+struct PVRDMADev {
     PCIDevice parent_obj;
     MemoryRegion msix;
     MemoryRegion regs;
@@ -98,8 +99,10 @@ typedef struct PVRDMADev {
     VMXNET3State *func0;
     Notifier shutdown_notifier;
     PVRDMADevStats stats;
-} PVRDMADev;
-#define PVRDMA_DEV(dev) OBJECT_CHECK(PVRDMADev, (dev), PVRDMA_HW_NAME)
+};
+typedef struct PVRDMADev PVRDMADev;
+DECLARE_INSTANCE_CHECKER(PVRDMADev, PVRDMA_DEV,
+                         PVRDMA_HW_NAME)
 
 static inline int get_reg_val(PVRDMADev *dev, hwaddr addr, uint32_t *val)
 {
diff --git a/hw/rtc/ds1338.c b/hw/rtc/ds1338.c
index 588a9ba9be..10fac3d9c9 100644
--- a/hw/rtc/ds1338.c
+++ b/hw/rtc/ds1338.c
@@ -16,6 +16,7 @@
 #include "migration/vmstate.h"
 #include "qemu/bcd.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /* Size of NVRAM including both the user-accessible area and the
  * secondary register area.
@@ -29,9 +30,11 @@
 #define CTRL_OSF   0x20
 
 #define TYPE_DS1338 "ds1338"
-#define DS1338(obj) OBJECT_CHECK(DS1338State, (obj), TYPE_DS1338)
+typedef struct DS1338State DS1338State;
+DECLARE_INSTANCE_CHECKER(DS1338State, DS1338,
+                         TYPE_DS1338)
 
-typedef struct DS1338State {
+struct DS1338State {
     I2CSlave parent_obj;
 
     int64_t offset;
@@ -39,7 +42,7 @@ typedef struct DS1338State {
     uint8_t nvram[NVRAM_SIZE];
     int32_t ptr;
     bool addr_byte;
-} DS1338State;
+};
 
 static const VMStateDescription vmstate_ds1338 = {
     .name = "ds1338",
diff --git a/hw/rtc/exynos4210_rtc.c b/hw/rtc/exynos4210_rtc.c
index f85483a07f..f8a4fe8a47 100644
--- a/hw/rtc/exynos4210_rtc.c
+++ b/hw/rtc/exynos4210_rtc.c
@@ -38,6 +38,7 @@
 #include "hw/irq.h"
 
 #include "hw/arm/exynos4210.h"
+#include "qom/object.h"
 
 #define DEBUG_RTC 0
 
@@ -84,10 +85,11 @@
 #define     RTC_BASE_FREQ       32768
 
 #define TYPE_EXYNOS4210_RTC "exynos4210.rtc"
-#define EXYNOS4210_RTC(obj) \
-    OBJECT_CHECK(Exynos4210RTCState, (obj), TYPE_EXYNOS4210_RTC)
+typedef struct Exynos4210RTCState Exynos4210RTCState;
+DECLARE_INSTANCE_CHECKER(Exynos4210RTCState, EXYNOS4210_RTC,
+                         TYPE_EXYNOS4210_RTC)
 
-typedef struct Exynos4210RTCState {
+struct Exynos4210RTCState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -113,7 +115,7 @@ typedef struct Exynos4210RTCState {
     qemu_irq        alm_irq;    /* alarm irq */
 
     struct tm   current_tm;     /* current time */
-} Exynos4210RTCState;
+};
 
 #define TICCKSEL(value) ((value & (0x0F << 4)) >> 4)
 
diff --git a/hw/rtc/m41t80.c b/hw/rtc/m41t80.c
index 914ecac8f4..0b7048c3f4 100644
--- a/hw/rtc/m41t80.c
+++ b/hw/rtc/m41t80.c
@@ -14,14 +14,17 @@
 #include "qemu/timer.h"
 #include "qemu/bcd.h"
 #include "hw/i2c/i2c.h"
+#include "qom/object.h"
 
 #define TYPE_M41T80 "m41t80"
-#define M41T80(obj) OBJECT_CHECK(M41t80State, (obj), TYPE_M41T80)
+typedef struct M41t80State M41t80State;
+DECLARE_INSTANCE_CHECKER(M41t80State, M41T80,
+                         TYPE_M41T80)
 
-typedef struct M41t80State {
+struct M41t80State {
     I2CSlave parent_obj;
     int8_t addr;
-} M41t80State;
+};
 
 static void m41t80_realize(DeviceState *dev, Error **errp)
 {
diff --git a/hw/rtc/m48t59-isa.c b/hw/rtc/m48t59-isa.c
index 50430b7a85..cae315e488 100644
--- a/hw/rtc/m48t59-isa.c
+++ b/hw/rtc/m48t59-isa.c
@@ -30,26 +30,25 @@
 #include "m48t59-internal.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TYPE_M48TXX_ISA "isa-m48txx"
-#define M48TXX_ISA_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(M48txxISADeviceClass, (obj), TYPE_M48TXX_ISA)
-#define M48TXX_ISA_CLASS(klass) \
-    OBJECT_CLASS_CHECK(M48txxISADeviceClass, (klass), TYPE_M48TXX_ISA)
-#define M48TXX_ISA(obj) \
-    OBJECT_CHECK(M48txxISAState, (obj), TYPE_M48TXX_ISA)
-
-typedef struct M48txxISAState {
+typedef struct M48txxISADeviceClass M48txxISADeviceClass;
+typedef struct M48txxISAState M48txxISAState;
+DECLARE_OBJ_CHECKERS(M48txxISAState, M48txxISADeviceClass,
+                     M48TXX_ISA, TYPE_M48TXX_ISA)
+
+struct M48txxISAState {
     ISADevice parent_obj;
     M48t59State state;
     uint32_t io_base;
     MemoryRegion io;
-} M48txxISAState;
+};
 
-typedef struct M48txxISADeviceClass {
+struct M48txxISADeviceClass {
     ISADeviceClass parent_class;
     M48txxInfo info;
-} M48txxISADeviceClass;
+};
 
 static M48txxInfo m48txx_isa_info[] = {
     {
diff --git a/hw/rtc/m48t59.c b/hw/rtc/m48t59.c
index b428a06045..6525206976 100644
--- a/hw/rtc/m48t59.c
+++ b/hw/rtc/m48t59.c
@@ -40,14 +40,13 @@
 
 #include "m48t59-internal.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #define TYPE_M48TXX_SYS_BUS "sysbus-m48txx"
-#define M48TXX_SYS_BUS_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(M48txxSysBusDeviceClass, (obj), TYPE_M48TXX_SYS_BUS)
-#define M48TXX_SYS_BUS_CLASS(klass) \
-    OBJECT_CLASS_CHECK(M48txxSysBusDeviceClass, (klass), TYPE_M48TXX_SYS_BUS)
-#define M48TXX_SYS_BUS(obj) \
-    OBJECT_CHECK(M48txxSysBusState, (obj), TYPE_M48TXX_SYS_BUS)
+typedef struct M48txxSysBusDeviceClass M48txxSysBusDeviceClass;
+typedef struct M48txxSysBusState M48txxSysBusState;
+DECLARE_OBJ_CHECKERS(M48txxSysBusState, M48txxSysBusDeviceClass,
+                     M48TXX_SYS_BUS, TYPE_M48TXX_SYS_BUS)
 
 /*
  * Chipset docs:
@@ -56,16 +55,16 @@
  * http://www.st.com/stonline/products/literature/od/7001/m48t59y.pdf
  */
 
-typedef struct M48txxSysBusState {
+struct M48txxSysBusState {
     SysBusDevice parent_obj;
     M48t59State state;
     MemoryRegion io;
-} M48txxSysBusState;
+};
 
-typedef struct M48txxSysBusDeviceClass {
+struct M48txxSysBusDeviceClass {
     SysBusDeviceClass parent_class;
     M48txxInfo info;
-} M48txxSysBusDeviceClass;
+};
 
 static M48txxInfo m48txx_sysbus_info[] = {
     {
diff --git a/hw/rtc/sun4v-rtc.c b/hw/rtc/sun4v-rtc.c
index 52caea8654..18979d25d0 100644
--- a/hw/rtc/sun4v-rtc.c
+++ b/hw/rtc/sun4v-rtc.c
@@ -16,16 +16,19 @@
 #include "qemu/timer.h"
 #include "hw/rtc/sun4v-rtc.h"
 #include "trace.h"
+#include "qom/object.h"
 
 
 #define TYPE_SUN4V_RTC "sun4v_rtc"
-#define SUN4V_RTC(obj) OBJECT_CHECK(Sun4vRtc, (obj), TYPE_SUN4V_RTC)
+typedef struct Sun4vRtc Sun4vRtc;
+DECLARE_INSTANCE_CHECKER(Sun4vRtc, SUN4V_RTC,
+                         TYPE_SUN4V_RTC)
 
-typedef struct Sun4vRtc {
+struct Sun4vRtc {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
-} Sun4vRtc;
+};
 
 static uint64_t sun4v_rtc_read(void *opaque, hwaddr addr,
                                 unsigned size)
diff --git a/hw/rtc/twl92230.c b/hw/rtc/twl92230.c
index d0011be89e..4f83eff5c3 100644
--- a/hw/rtc/twl92230.c
+++ b/hw/rtc/twl92230.c
@@ -29,13 +29,16 @@
 #include "sysemu/sysemu.h"
 #include "qemu/bcd.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define VERBOSE 1
 
 #define TYPE_TWL92230 "twl92230"
-#define TWL92230(obj) OBJECT_CHECK(MenelausState, (obj), TYPE_TWL92230)
+typedef struct MenelausState MenelausState;
+DECLARE_INSTANCE_CHECKER(MenelausState, TWL92230,
+                         TYPE_TWL92230)
 
-typedef struct MenelausState {
+struct MenelausState {
     I2CSlave parent_obj;
 
     int firstbyte;
@@ -71,7 +74,7 @@ typedef struct MenelausState {
     uint16_t rtc_next_vmstate;
     qemu_irq out[4];
     uint8_t pwrbtn_state;
-} MenelausState;
+};
 
 static inline void menelaus_update(MenelausState *s)
 {
diff --git a/hw/rx/rx-gdbsim.c b/hw/rx/rx-gdbsim.c
index 6914de2e59..417ec0564b 100644
--- a/hw/rx/rx-gdbsim.c
+++ b/hw/rx/rx-gdbsim.c
@@ -30,34 +30,33 @@
 #include "sysemu/qtest.h"
 #include "sysemu/device_tree.h"
 #include "hw/boards.h"
+#include "qom/object.h"
 
 /* Same address of GDB integrated simulator */
 #define SDRAM_BASE  EXT_CS_BASE
 
-typedef struct RxGdbSimMachineClass {
+struct RxGdbSimMachineClass {
     /*< private >*/
     MachineClass parent_class;
     /*< public >*/
     const char *mcu_name;
     uint32_t xtal_freq_hz;
-} RxGdbSimMachineClass;
+};
+typedef struct RxGdbSimMachineClass RxGdbSimMachineClass;
 
-typedef struct RxGdbSimMachineState {
+struct RxGdbSimMachineState {
     /*< private >*/
     MachineState parent_obj;
     /*< public >*/
     RX62NState mcu;
-} RxGdbSimMachineState;
+};
+typedef struct RxGdbSimMachineState RxGdbSimMachineState;
 
 #define TYPE_RX_GDBSIM_MACHINE MACHINE_TYPE_NAME("rx62n-common")
 
-#define RX_GDBSIM_MACHINE(obj) \
-    OBJECT_CHECK(RxGdbSimMachineState, (obj), TYPE_RX_GDBSIM_MACHINE)
+DECLARE_OBJ_CHECKERS(RxGdbSimMachineState, RxGdbSimMachineClass,
+                     RX_GDBSIM_MACHINE, TYPE_RX_GDBSIM_MACHINE)
 
-#define RX_GDBSIM_MACHINE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(RxGdbSimMachineClass, (klass), TYPE_RX_GDBSIM_MACHINE)
-#define RX_GDBSIM_MACHINE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(RxGdbSimMachineClass, (obj), TYPE_RX_GDBSIM_MACHINE)
 
 static void rx_load_image(RXCPU *cpu, const char *filename,
                           uint32_t start, uint32_t size)
diff --git a/hw/rx/rx62n.c b/hw/rx/rx62n.c
index b9c217ebfa..6eb4eea700 100644
--- a/hw/rx/rx62n.c
+++ b/hw/rx/rx62n.c
@@ -31,6 +31,7 @@
 #include "sysemu/sysemu.h"
 #include "sysemu/qtest.h"
 #include "cpu.h"
+#include "qom/object.h"
 
 /*
  * RX62N Internal Memory
@@ -60,7 +61,7 @@
 #define RX62N_XTAL_MAX_HZ (14 * 1000 * 1000)
 #define RX62N_PCLK_MAX_HZ (50 * 1000 * 1000)
 
-typedef struct RX62NClass {
+struct RX62NClass {
     /*< private >*/
     DeviceClass parent_class;
     /*< public >*/
@@ -68,12 +69,11 @@ typedef struct RX62NClass {
     uint64_t ram_size;
     uint64_t rom_flash_size;
     uint64_t data_flash_size;
-} RX62NClass;
+};
+typedef struct RX62NClass RX62NClass;
 
-#define RX62N_MCU_CLASS(klass) \
-    OBJECT_CLASS_CHECK(RX62NClass, (klass), TYPE_RX62N_MCU)
-#define RX62N_MCU_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(RX62NClass, (obj), TYPE_RX62N_MCU)
+DECLARE_CLASS_CHECKERS(RX62NClass, RX62N_MCU,
+                       TYPE_RX62N_MCU)
 
 /*
  * IRQ -> IPR mapping table
diff --git a/hw/s390x/ap-device.c b/hw/s390x/ap-device.c
index fc0b41e937..237d1f19c5 100644
--- a/hw/s390x/ap-device.c
+++ b/hw/s390x/ap-device.c
@@ -21,7 +21,7 @@ static void ap_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo ap_device_info = {
-    .name = AP_DEVICE_TYPE,
+    .name = TYPE_AP_DEVICE,
     .parent = TYPE_DEVICE,
     .instance_size = sizeof(APDevice),
     .class_size = sizeof(DeviceClass),
diff --git a/hw/s390x/ccw-device.h b/hw/s390x/ccw-device.h
index 4e6af287e7..cf7d492084 100644
--- a/hw/s390x/ccw-device.h
+++ b/hw/s390x/ccw-device.h
@@ -15,7 +15,7 @@
 #include "hw/qdev-core.h"
 #include "hw/s390x/css.h"
 
-typedef struct CcwDevice {
+struct CcwDevice {
     DeviceState parent_obj;
     SubchDev *sch;
     /* <cssid>.<ssid>.<device number> */
@@ -25,18 +25,20 @@ typedef struct CcwDevice {
     CssDevId dev_id;
     /* The actual busid of the virtual subchannel. */
     CssDevId subch_id;
-} CcwDevice;
+};
+typedef struct CcwDevice CcwDevice;
 
 extern const VMStateDescription vmstate_ccw_dev;
 #define VMSTATE_CCW_DEVICE(_field, _state)                     \
     VMSTATE_STRUCT(_field, _state, 1, vmstate_ccw_dev, CcwDevice)
 
-typedef struct CCWDeviceClass {
+struct CCWDeviceClass {
     DeviceClass parent_class;
     void (*unplug)(HotplugHandler *, DeviceState *, Error **);
     void (*realize)(CcwDevice *, Error **);
     void (*refill_ids)(CcwDevice *);
-} CCWDeviceClass;
+};
+typedef struct CCWDeviceClass CCWDeviceClass;
 
 static inline CcwDevice *to_ccw_dev_fast(DeviceState *d)
 {
@@ -45,10 +47,7 @@ static inline CcwDevice *to_ccw_dev_fast(DeviceState *d)
 
 #define TYPE_CCW_DEVICE "ccw-device"
 
-#define CCW_DEVICE(obj) OBJECT_CHECK(CcwDevice, (obj), TYPE_CCW_DEVICE)
-#define CCW_DEVICE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(CCWDeviceClass, (obj), TYPE_CCW_DEVICE)
-#define CCW_DEVICE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(CCWDeviceClass, (klass), TYPE_CCW_DEVICE)
+DECLARE_OBJ_CHECKERS(CcwDevice, CCWDeviceClass,
+                     CCW_DEVICE, TYPE_CCW_DEVICE)
 
 #endif
diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h
index 53cc9eb5ac..9e6061a043 100644
--- a/hw/s390x/ipl.h
+++ b/hw/s390x/ipl.h
@@ -16,6 +16,7 @@
 #include "cpu.h"
 #include "exec/address-spaces.h"
 #include "hw/qdev-core.h"
+#include "qom/object.h"
 
 struct IPLBlockPVComp {
     uint64_t tweak_pref;
@@ -152,7 +153,9 @@ struct QemuIplParameters {
 typedef struct QemuIplParameters QemuIplParameters;
 
 #define TYPE_S390_IPL "s390-ipl"
-#define S390_IPL(obj) OBJECT_CHECK(S390IPLState, (obj), TYPE_S390_IPL)
+typedef struct S390IPLState S390IPLState;
+DECLARE_INSTANCE_CHECKER(S390IPLState, S390_IPL,
+                         TYPE_S390_IPL)
 
 struct S390IPLState {
     /*< private >*/
@@ -183,7 +186,6 @@ struct S390IPLState {
     uint16_t devno;
     bool iplbext_migration;
 };
-typedef struct S390IPLState S390IPLState;
 QEMU_BUILD_BUG_MSG(offsetof(S390IPLState, iplb) & 3, "alignment of iplb wrong");
 
 #define DIAG_308_RC_OK              0x0001
diff --git a/hw/s390x/s390-pci-bus.h b/hw/s390x/s390-pci-bus.h
index 550f3cc5e9..045805980f 100644
--- a/hw/s390x/s390-pci-bus.h
+++ b/hw/s390x/s390-pci-bus.h
@@ -19,6 +19,7 @@
 #include "hw/s390x/sclp.h"
 #include "hw/s390x/s390_flic.h"
 #include "hw/s390x/css.h"
+#include "qom/object.h"
 
 #define TYPE_S390_PCI_HOST_BRIDGE "s390-pcihost"
 #define TYPE_S390_PCI_BUS "s390-pcibus"
@@ -36,14 +37,18 @@
 #define UID_UNDEFINED 0
 #define UID_CHECKING_ENABLED 0x01
 
-#define S390_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(S390pciState, (obj), TYPE_S390_PCI_HOST_BRIDGE)
-#define S390_PCI_BUS(obj) \
-    OBJECT_CHECK(S390PCIBus, (obj), TYPE_S390_PCI_BUS)
-#define S390_PCI_DEVICE(obj) \
-    OBJECT_CHECK(S390PCIBusDevice, (obj), TYPE_S390_PCI_DEVICE)
-#define S390_PCI_IOMMU(obj) \
-    OBJECT_CHECK(S390PCIIOMMU, (obj), TYPE_S390_PCI_IOMMU)
+typedef struct S390pciState S390pciState;
+DECLARE_INSTANCE_CHECKER(S390pciState, S390_PCI_HOST_BRIDGE,
+                         TYPE_S390_PCI_HOST_BRIDGE)
+typedef struct S390PCIBus S390PCIBus;
+DECLARE_INSTANCE_CHECKER(S390PCIBus, S390_PCI_BUS,
+                         TYPE_S390_PCI_BUS)
+typedef struct S390PCIBusDevice S390PCIBusDevice;
+DECLARE_INSTANCE_CHECKER(S390PCIBusDevice, S390_PCI_DEVICE,
+                         TYPE_S390_PCI_DEVICE)
+typedef struct S390PCIIOMMU S390PCIIOMMU;
+DECLARE_INSTANCE_CHECKER(S390PCIIOMMU, S390_PCI_IOMMU,
+                         TYPE_S390_PCI_IOMMU)
 
 #define HP_EVENT_TO_CONFIGURED        0x0301
 #define HP_EVENT_RESERVED_TO_STANDBY  0x0302
@@ -265,8 +270,7 @@ typedef struct S390IOTLBEntry {
     uint64_t perm;
 } S390IOTLBEntry;
 
-typedef struct S390PCIBusDevice S390PCIBusDevice;
-typedef struct S390PCIIOMMU {
+struct S390PCIIOMMU {
     Object parent_obj;
     S390PCIBusDevice *pbdev;
     AddressSpace as;
@@ -277,7 +281,7 @@ typedef struct S390PCIIOMMU {
     uint64_t pba;
     uint64_t pal;
     GHashTable *iotlb;
-} S390PCIIOMMU;
+};
 
 typedef struct S390PCIIOMMUTable {
     uint64_t key;
@@ -339,11 +343,11 @@ struct S390PCIBusDevice {
     QTAILQ_ENTRY(S390PCIBusDevice) link;
 };
 
-typedef struct S390PCIBus {
+struct S390PCIBus {
     BusState qbus;
-} S390PCIBus;
+};
 
-typedef struct S390pciState {
+struct S390pciState {
     PCIHostState parent_obj;
     uint32_t next_idx;
     int bus_no;
@@ -352,7 +356,7 @@ typedef struct S390pciState {
     GHashTable *zpci_table;
     QTAILQ_HEAD(, SeiContainer) pending_sei;
     QTAILQ_HEAD(, S390PCIBusDevice) zpci_devs;
-} S390pciState;
+};
 
 S390pciState *s390_get_phb(void);
 int pci_chsc_sei_nt2_get_event(void *res);
diff --git a/hw/s390x/virtio-ccw.h b/hw/s390x/virtio-ccw.h
index b281896f7d..cea259685d 100644
--- a/hw/s390x/virtio-ccw.h
+++ b/hw/s390x/virtio-ccw.h
@@ -17,6 +17,7 @@
 #include "hw/virtio/virtio-net.h"
 #include "hw/virtio/virtio-serial.h"
 #include "hw/virtio/virtio-scsi.h"
+#include "qom/object.h"
 #ifdef CONFIG_VHOST_SCSI
 #include "hw/virtio/vhost-scsi.h"
 #endif
@@ -53,32 +54,25 @@
 #define CCW_CMD_SET_VIRTIO_REV 0x83
 
 #define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"
-#define VIRTIO_CCW_DEVICE(obj) \
-     OBJECT_CHECK(VirtioCcwDevice, (obj), TYPE_VIRTIO_CCW_DEVICE)
-#define VIRTIO_CCW_DEVICE_CLASS(klass) \
-     OBJECT_CLASS_CHECK(VirtIOCCWDeviceClass, (klass), TYPE_VIRTIO_CCW_DEVICE)
-#define VIRTIO_CCW_DEVICE_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(VirtIOCCWDeviceClass, (obj), TYPE_VIRTIO_CCW_DEVICE)
+typedef struct VirtIOCCWDeviceClass VirtIOCCWDeviceClass;
+typedef struct VirtioCcwDevice VirtioCcwDevice;
+DECLARE_OBJ_CHECKERS(VirtioCcwDevice, VirtIOCCWDeviceClass,
+                     VIRTIO_CCW_DEVICE, TYPE_VIRTIO_CCW_DEVICE)
 
 typedef struct VirtioBusState VirtioCcwBusState;
 typedef struct VirtioBusClass VirtioCcwBusClass;
 
 #define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus"
-#define VIRTIO_CCW_BUS(obj) \
-     OBJECT_CHECK(VirtioCcwBusState, (obj), TYPE_VIRTIO_CCW_BUS)
-#define VIRTIO_CCW_BUS_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(VirtioCcwBusClass, (obj), TYPE_VIRTIO_CCW_BUS)
-#define VIRTIO_CCW_BUS_CLASS(klass) \
-    OBJECT_CLASS_CHECK(VirtioCcwBusClass, klass, TYPE_VIRTIO_CCW_BUS)
+DECLARE_OBJ_CHECKERS(VirtioCcwBusState, VirtioCcwBusClass,
+                     VIRTIO_CCW_BUS, TYPE_VIRTIO_CCW_BUS)
 
-typedef struct VirtioCcwDevice VirtioCcwDevice;
 
-typedef struct VirtIOCCWDeviceClass {
+struct VirtIOCCWDeviceClass {
     CCWDeviceClass parent_class;
     void (*realize)(VirtioCcwDevice *dev, Error **errp);
     void (*unrealize)(VirtioCcwDevice *dev);
     void (*parent_reset)(DeviceState *dev);
-} VirtIOCCWDeviceClass;
+};
 
 /* Performance improves when virtqueue kick processing is decoupled from the
  * vcpu thread using ioeventfd for some devices. */
@@ -111,92 +105,100 @@ static inline int virtio_ccw_rev_max(VirtioCcwDevice *dev)
 /* virtio-scsi-ccw */
 
 #define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"
-#define VIRTIO_SCSI_CCW(obj) \
-        OBJECT_CHECK(VirtIOSCSICcw, (obj), TYPE_VIRTIO_SCSI_CCW)
+typedef struct VirtIOSCSICcw VirtIOSCSICcw;
+DECLARE_INSTANCE_CHECKER(VirtIOSCSICcw, VIRTIO_SCSI_CCW,
+                         TYPE_VIRTIO_SCSI_CCW)
 
-typedef struct VirtIOSCSICcw {
+struct VirtIOSCSICcw {
     VirtioCcwDevice parent_obj;
     VirtIOSCSI vdev;
-} VirtIOSCSICcw;
+};
 
 #ifdef CONFIG_VHOST_SCSI
 /* vhost-scsi-ccw */
 
 #define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"
-#define VHOST_SCSI_CCW(obj) \
-        OBJECT_CHECK(VHostSCSICcw, (obj), TYPE_VHOST_SCSI_CCW)
+typedef struct VHostSCSICcw VHostSCSICcw;
+DECLARE_INSTANCE_CHECKER(VHostSCSICcw, VHOST_SCSI_CCW,
+                         TYPE_VHOST_SCSI_CCW)
 
-typedef struct VHostSCSICcw {
+struct VHostSCSICcw {
     VirtioCcwDevice parent_obj;
     VHostSCSI vdev;
-} VHostSCSICcw;
+};
 #endif
 
 /* virtio-blk-ccw */
 
 #define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"
-#define VIRTIO_BLK_CCW(obj) \
-        OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)
+typedef struct VirtIOBlkCcw VirtIOBlkCcw;
+DECLARE_INSTANCE_CHECKER(VirtIOBlkCcw, VIRTIO_BLK_CCW,
+                         TYPE_VIRTIO_BLK_CCW)
 
-typedef struct VirtIOBlkCcw {
+struct VirtIOBlkCcw {
     VirtioCcwDevice parent_obj;
     VirtIOBlock vdev;
-} VirtIOBlkCcw;
+};
 
 /* virtio-balloon-ccw */
 
 #define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw"
-#define VIRTIO_BALLOON_CCW(obj) \
-        OBJECT_CHECK(VirtIOBalloonCcw, (obj), TYPE_VIRTIO_BALLOON_CCW)
+typedef struct VirtIOBalloonCcw VirtIOBalloonCcw;
+DECLARE_INSTANCE_CHECKER(VirtIOBalloonCcw, VIRTIO_BALLOON_CCW,
+                         TYPE_VIRTIO_BALLOON_CCW)
 
-typedef struct VirtIOBalloonCcw {
+struct VirtIOBalloonCcw {
     VirtioCcwDevice parent_obj;
     VirtIOBalloon vdev;
-} VirtIOBalloonCcw;
+};
 
 /* virtio-serial-ccw */
 
 #define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"
-#define VIRTIO_SERIAL_CCW(obj) \
-        OBJECT_CHECK(VirtioSerialCcw, (obj), TYPE_VIRTIO_SERIAL_CCW)
+typedef struct VirtioSerialCcw VirtioSerialCcw;
+DECLARE_INSTANCE_CHECKER(VirtioSerialCcw, VIRTIO_SERIAL_CCW,
+                         TYPE_VIRTIO_SERIAL_CCW)
 
-typedef struct VirtioSerialCcw {
+struct VirtioSerialCcw {
     VirtioCcwDevice parent_obj;
     VirtIOSerial vdev;
-} VirtioSerialCcw;
+};
 
 /* virtio-net-ccw */
 
 #define TYPE_VIRTIO_NET_CCW "virtio-net-ccw"
-#define VIRTIO_NET_CCW(obj) \
-        OBJECT_CHECK(VirtIONetCcw, (obj), TYPE_VIRTIO_NET_CCW)
+typedef struct VirtIONetCcw VirtIONetCcw;
+DECLARE_INSTANCE_CHECKER(VirtIONetCcw, VIRTIO_NET_CCW,
+                         TYPE_VIRTIO_NET_CCW)
 
-typedef struct VirtIONetCcw {
+struct VirtIONetCcw {
     VirtioCcwDevice parent_obj;
     VirtIONet vdev;
-} VirtIONetCcw;
+};
 
 /* virtio-rng-ccw */
 
 #define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"
-#define VIRTIO_RNG_CCW(obj) \
-        OBJECT_CHECK(VirtIORNGCcw, (obj), TYPE_VIRTIO_RNG_CCW)
+typedef struct VirtIORNGCcw VirtIORNGCcw;
+DECLARE_INSTANCE_CHECKER(VirtIORNGCcw, VIRTIO_RNG_CCW,
+                         TYPE_VIRTIO_RNG_CCW)
 
-typedef struct VirtIORNGCcw {
+struct VirtIORNGCcw {
     VirtioCcwDevice parent_obj;
     VirtIORNG vdev;
-} VirtIORNGCcw;
+};
 
 /* virtio-crypto-ccw */
 
 #define TYPE_VIRTIO_CRYPTO_CCW "virtio-crypto-ccw"
-#define VIRTIO_CRYPTO_CCW(obj) \
-        OBJECT_CHECK(VirtIOCryptoCcw, (obj), TYPE_VIRTIO_CRYPTO_CCW)
+typedef struct VirtIOCryptoCcw VirtIOCryptoCcw;
+DECLARE_INSTANCE_CHECKER(VirtIOCryptoCcw, VIRTIO_CRYPTO_CCW,
+                         TYPE_VIRTIO_CRYPTO_CCW)
 
-typedef struct VirtIOCryptoCcw {
+struct VirtIOCryptoCcw {
     VirtioCcwDevice parent_obj;
     VirtIOCrypto vdev;
-} VirtIOCryptoCcw;
+};
 
 VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
 
@@ -204,56 +206,61 @@ VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);
 #include "hw/9pfs/virtio-9p.h"
 
 #define TYPE_VIRTIO_9P_CCW "virtio-9p-ccw"
-#define VIRTIO_9P_CCW(obj) \
-    OBJECT_CHECK(V9fsCCWState, (obj), TYPE_VIRTIO_9P_CCW)
+typedef struct V9fsCCWState V9fsCCWState;
+DECLARE_INSTANCE_CHECKER(V9fsCCWState, VIRTIO_9P_CCW,
+                         TYPE_VIRTIO_9P_CCW)
 
-typedef struct V9fsCCWState {
+struct V9fsCCWState {
     VirtioCcwDevice parent_obj;
     V9fsVirtioState vdev;
-} V9fsCCWState;
+};
 
 #endif /* CONFIG_VIRTFS */
 
 #ifdef CONFIG_VHOST_VSOCK
 #define TYPE_VHOST_VSOCK_CCW "vhost-vsock-ccw"
-#define VHOST_VSOCK_CCW(obj) \
-    OBJECT_CHECK(VHostVSockCCWState, (obj), TYPE_VHOST_VSOCK_CCW)
+typedef struct VHostVSockCCWState VHostVSockCCWState;
+DECLARE_INSTANCE_CHECKER(VHostVSockCCWState, VHOST_VSOCK_CCW,
+                         TYPE_VHOST_VSOCK_CCW)
 
-typedef struct VHostVSockCCWState {
+struct VHostVSockCCWState {
     VirtioCcwDevice parent_obj;
     VHostVSock vdev;
-} VHostVSockCCWState;
+};
 
 #endif /* CONFIG_VHOST_VSOCK */
 
 #define TYPE_VIRTIO_GPU_CCW "virtio-gpu-ccw"
-#define VIRTIO_GPU_CCW(obj) \
-        OBJECT_CHECK(VirtIOGPUCcw, (obj), TYPE_VIRTIO_GPU_CCW)
+typedef struct VirtIOGPUCcw VirtIOGPUCcw;
+DECLARE_INSTANCE_CHECKER(VirtIOGPUCcw, VIRTIO_GPU_CCW,
+                         TYPE_VIRTIO_GPU_CCW)
 
-typedef struct VirtIOGPUCcw {
+struct VirtIOGPUCcw {
     VirtioCcwDevice parent_obj;
     VirtIOGPU vdev;
-} VirtIOGPUCcw;
+};
 
 #define TYPE_VIRTIO_INPUT_CCW "virtio-input-ccw"
-#define VIRTIO_INPUT_CCW(obj) \
-        OBJECT_CHECK(VirtIOInputCcw, (obj), TYPE_VIRTIO_INPUT_CCW)
+typedef struct VirtIOInputCcw VirtIOInputCcw;
+DECLARE_INSTANCE_CHECKER(VirtIOInputCcw, VIRTIO_INPUT_CCW,
+                         TYPE_VIRTIO_INPUT_CCW)
 
-typedef struct VirtIOInputCcw {
+struct VirtIOInputCcw {
     VirtioCcwDevice parent_obj;
     VirtIOInput vdev;
-} VirtIOInputCcw;
+};
 
 #define TYPE_VIRTIO_INPUT_HID_CCW "virtio-input-hid-ccw"
 #define TYPE_VIRTIO_KEYBOARD_CCW "virtio-keyboard-ccw"
 #define TYPE_VIRTIO_MOUSE_CCW "virtio-mouse-ccw"
 #define TYPE_VIRTIO_TABLET_CCW "virtio-tablet-ccw"
-#define VIRTIO_INPUT_HID_CCW(obj) \
-        OBJECT_CHECK(VirtIOInputHIDCcw, (obj), TYPE_VIRTIO_INPUT_HID_CCW)
+typedef struct VirtIOInputHIDCcw VirtIOInputHIDCcw;
+DECLARE_INSTANCE_CHECKER(VirtIOInputHIDCcw, VIRTIO_INPUT_HID_CCW,
+                         TYPE_VIRTIO_INPUT_HID_CCW)
 
-typedef struct VirtIOInputHIDCcw {
+struct VirtIOInputHIDCcw {
     VirtioCcwDevice parent_obj;
     VirtIOInputHID vdev;
-} VirtIOInputHIDCcw;
+};
 
 #endif
diff --git a/hw/scsi/esp-pci.c b/hw/scsi/esp-pci.c
index 90432ef107..2ce96dc56e 100644
--- a/hw/scsi/esp-pci.c
+++ b/hw/scsi/esp-pci.c
@@ -33,11 +33,13 @@
 #include "qapi/error.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define TYPE_AM53C974_DEVICE "am53c974"
 
-#define PCI_ESP(obj) \
-    OBJECT_CHECK(PCIESPState, (obj), TYPE_AM53C974_DEVICE)
+typedef struct PCIESPState PCIESPState;
+DECLARE_INSTANCE_CHECKER(PCIESPState, PCI_ESP,
+                         TYPE_AM53C974_DEVICE)
 
 #define DMA_CMD   0x0
 #define DMA_STC   0x1
@@ -64,7 +66,7 @@
 
 #define SBAC_STATUS (1 << 24)
 
-typedef struct PCIESPState {
+struct PCIESPState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -73,7 +75,7 @@ typedef struct PCIESPState {
     uint32_t dma_regs[8];
     uint32_t sbac;
     ESPState esp;
-} PCIESPState;
+};
 
 static void esp_pci_handle_idle(PCIESPState *pci, uint32_t val)
 {
@@ -408,14 +410,15 @@ static const TypeInfo esp_pci_info = {
     },
 };
 
-typedef struct {
+struct DC390State {
     PCIESPState pci;
     eeprom_t *eeprom;
-} DC390State;
+};
+typedef struct DC390State DC390State;
 
 #define TYPE_DC390_DEVICE "dc390"
-#define DC390(obj) \
-    OBJECT_CHECK(DC390State, obj, TYPE_DC390_DEVICE)
+DECLARE_INSTANCE_CHECKER(DC390State, DC390,
+                         TYPE_DC390_DEVICE)
 
 #define EE_ADAPT_SCSI_ID 64
 #define EE_MODE2         65
diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c
index 405f8b7cbc..b84e0fe33e 100644
--- a/hw/scsi/esp.c
+++ b/hw/scsi/esp.c
@@ -929,7 +929,7 @@ static const struct SCSIBusInfo esp_scsi_info = {
 
 static void sysbus_esp_gpio_demux(void *opaque, int irq, int level)
 {
-    SysBusESPState *sysbus = ESP_STATE(opaque);
+    SysBusESPState *sysbus = ESP(opaque);
     ESPState *s = &sysbus->esp;
 
     switch (irq) {
@@ -945,7 +945,7 @@ static void sysbus_esp_gpio_demux(void *opaque, int irq, int level)
 static void sysbus_esp_realize(DeviceState *dev, Error **errp)
 {
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
-    SysBusESPState *sysbus = ESP_STATE(dev);
+    SysBusESPState *sysbus = ESP(dev);
     ESPState *s = &sysbus->esp;
 
     sysbus_init_irq(sbd, &s->irq);
@@ -967,7 +967,7 @@ static void sysbus_esp_realize(DeviceState *dev, Error **errp)
 
 static void sysbus_esp_hard_reset(DeviceState *dev)
 {
-    SysBusESPState *sysbus = ESP_STATE(dev);
+    SysBusESPState *sysbus = ESP(dev);
     esp_hard_reset(&sysbus->esp);
 }
 
diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c
index 63ff4181de..e8354a47da 100644
--- a/hw/scsi/lsi53c895a.c
+++ b/hw/scsi/lsi53c895a.c
@@ -23,6 +23,7 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 static const char *names[] = {
     "SCNTL0", "SCNTL1", "SCNTL2", "SCNTL3", "SCID", "SXFER", "SDID", "GPREG",
@@ -213,7 +214,7 @@ enum {
     LSI_MSG_ACTION_DIN = 3,
 };
 
-typedef struct {
+struct LSIState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -303,13 +304,14 @@ typedef struct {
     uint32_t adder;
 
     uint8_t script_ram[2048 * sizeof(uint32_t)];
-} LSIState;
+};
+typedef struct LSIState LSIState;
 
 #define TYPE_LSI53C810  "lsi53c810"
 #define TYPE_LSI53C895A "lsi53c895a"
 
-#define LSI53C895A(obj) \
-    OBJECT_CHECK(LSIState, (obj), TYPE_LSI53C895A)
+DECLARE_INSTANCE_CHECKER(LSIState, LSI53C895A,
+                         TYPE_LSI53C895A)
 
 static const char *scsi_phases[] = {
     "DOUT",
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 390c2f2edb..e90c00823a 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -34,6 +34,7 @@
 #include "qapi/error.h"
 #include "mfi.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 #define MEGASAS_VERSION_GEN1 "1.70"
 #define MEGASAS_VERSION_GEN2 "1.80"
@@ -72,7 +73,7 @@ typedef struct MegasasCmd {
     struct MegasasState *state;
 } MegasasCmd;
 
-typedef struct MegasasState {
+struct MegasasState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -116,28 +117,26 @@ typedef struct MegasasState {
     MegasasCmd frames[MEGASAS_MAX_FRAMES];
     DECLARE_BITMAP(frame_map, MEGASAS_MAX_FRAMES);
     SCSIBus bus;
-} MegasasState;
+};
+typedef struct MegasasState MegasasState;
 
-typedef struct MegasasBaseClass {
+struct MegasasBaseClass {
     PCIDeviceClass parent_class;
     const char *product_name;
     const char *product_version;
     int mmio_bar;
     int ioport_bar;
     int osts;
-} MegasasBaseClass;
+};
+typedef struct MegasasBaseClass MegasasBaseClass;
 
 #define TYPE_MEGASAS_BASE "megasas-base"
 #define TYPE_MEGASAS_GEN1 "megasas"
 #define TYPE_MEGASAS_GEN2 "megasas-gen2"
 
-#define MEGASAS(obj) \
-    OBJECT_CHECK(MegasasState, (obj), TYPE_MEGASAS_BASE)
+DECLARE_OBJ_CHECKERS(MegasasState, MegasasBaseClass,
+                     MEGASAS, TYPE_MEGASAS_BASE)
 
-#define MEGASAS_CLASS(oc) \
-    OBJECT_CLASS_CHECK(MegasasBaseClass, (oc), TYPE_MEGASAS_BASE)
-#define MEGASAS_GET_CLASS(oc) \
-    OBJECT_GET_CLASS(MegasasBaseClass, (oc), TYPE_MEGASAS_BASE)
 
 #define MEGASAS_INTR_DISABLED_MASK 0xFFFFFFFF
 
diff --git a/hw/scsi/mptsas.h b/hw/scsi/mptsas.h
index 9ac98fc20e..b85ac1a5fc 100644
--- a/hw/scsi/mptsas.h
+++ b/hw/scsi/mptsas.h
@@ -2,6 +2,7 @@
 #define MPTSAS_H
 
 #include "mpi.h"
+#include "qom/object.h"
 
 #define MPTSAS_NUM_PORTS 8
 #define MPTSAS_MAX_FRAMES 2048     /* Firmware limit at 65535 */
@@ -15,8 +16,8 @@ typedef struct MPTSASRequest MPTSASRequest;
 
 #define TYPE_MPTSAS1068 "mptsas1068"
 typedef struct MPTSASState MPTSASState;
-#define MPT_SAS(obj) \
-    OBJECT_CHECK(MPTSASState, (obj), TYPE_MPTSAS1068)
+DECLARE_INSTANCE_CHECKER(MPTSASState, MPT_SAS,
+                         TYPE_MPTSAS1068)
 
 enum {
     DOORBELL_NONE,
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 7612035a4e..1f0388a755 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -38,6 +38,7 @@
 #include "sysemu/sysemu.h"
 #include "qemu/cutils.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #ifdef __linux
 #include <scsi/sg.h>
@@ -54,20 +55,18 @@
 
 #define TYPE_SCSI_DISK_BASE         "scsi-disk-base"
 
-#define SCSI_DISK_BASE(obj) \
-     OBJECT_CHECK(SCSIDiskState, (obj), TYPE_SCSI_DISK_BASE)
-#define SCSI_DISK_BASE_CLASS(klass) \
-     OBJECT_CLASS_CHECK(SCSIDiskClass, (klass), TYPE_SCSI_DISK_BASE)
-#define SCSI_DISK_BASE_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(SCSIDiskClass, (obj), TYPE_SCSI_DISK_BASE)
+typedef struct SCSIDiskClass SCSIDiskClass;
+typedef struct SCSIDiskState SCSIDiskState;
+DECLARE_OBJ_CHECKERS(SCSIDiskState, SCSIDiskClass,
+                     SCSI_DISK_BASE, TYPE_SCSI_DISK_BASE)
 
-typedef struct SCSIDiskClass {
+struct SCSIDiskClass {
     SCSIDeviceClass parent_class;
     DMAIOFunc       *dma_readv;
     DMAIOFunc       *dma_writev;
     bool            (*need_fua_emulation)(SCSICommand *cmd);
     void            (*update_sense)(SCSIRequest *r);
-} SCSIDiskClass;
+};
 
 typedef struct SCSIDiskReq {
     SCSIRequest req;
@@ -87,8 +86,7 @@ typedef struct SCSIDiskReq {
 #define SCSI_DISK_F_DPOFUA                1
 #define SCSI_DISK_F_NO_REMOVABLE_DEVOPS   2
 
-typedef struct SCSIDiskState
-{
+struct SCSIDiskState {
     SCSIDevice qdev;
     uint32_t features;
     bool media_changed;
@@ -113,7 +111,7 @@ typedef struct SCSIDiskState
      * 0xffff        - reserved
      */
     uint16_t rotation_rate;
-} SCSIDiskState;
+};
 
 static bool scsi_handle_rw_error(SCSIDiskReq *r, int error, bool acct_failed);
 
diff --git a/hw/scsi/spapr_vscsi.c b/hw/scsi/spapr_vscsi.c
index 57f0a1336f..c3e6d1ecef 100644
--- a/hw/scsi/spapr_vscsi.c
+++ b/hw/scsi/spapr_vscsi.c
@@ -46,6 +46,7 @@
 #include "trace.h"
 
 #include <libfdt.h>
+#include "qom/object.h"
 
 /*
  * Virtual SCSI device
@@ -90,14 +91,15 @@ typedef struct vscsi_req {
 } vscsi_req;
 
 #define TYPE_VIO_SPAPR_VSCSI_DEVICE "spapr-vscsi"
-#define VIO_SPAPR_VSCSI_DEVICE(obj) \
-     OBJECT_CHECK(VSCSIState, (obj), TYPE_VIO_SPAPR_VSCSI_DEVICE)
+typedef struct VSCSIState VSCSIState;
+DECLARE_INSTANCE_CHECKER(VSCSIState, VIO_SPAPR_VSCSI_DEVICE,
+                         TYPE_VIO_SPAPR_VSCSI_DEVICE)
 
-typedef struct {
+struct VSCSIState {
     SpaprVioDevice vdev;
     SCSIBus bus;
     vscsi_req reqs[VSCSI_REQ_LIMIT];
-} VSCSIState;
+};
 
 static union viosrp_iu *req_iu(vscsi_req *req)
 {
diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c
index c071e0c7aa..40095bed09 100644
--- a/hw/scsi/vmw_pvscsi.c
+++ b/hw/scsi/vmw_pvscsi.c
@@ -36,6 +36,7 @@
 #include "hw/qdev-properties.h"
 #include "vmw_pvscsi.h"
 #include "trace.h"
+#include "qom/object.h"
 
 
 #define PVSCSI_USE_64BIT         (true)
@@ -56,18 +57,17 @@
     (stl_le_pci_dma(&container_of(m, PVSCSIState, rings)->parent_obj, \
                  (m)->rs_pa + offsetof(struct PVSCSIRingsState, field), val))
 
-typedef struct PVSCSIClass {
+struct PVSCSIClass {
     PCIDeviceClass parent_class;
     DeviceRealize parent_dc_realize;
-} PVSCSIClass;
+};
+typedef struct PVSCSIClass PVSCSIClass;
 
 #define TYPE_PVSCSI "pvscsi"
-#define PVSCSI(obj) OBJECT_CHECK(PVSCSIState, (obj), TYPE_PVSCSI)
+typedef struct PVSCSIState PVSCSIState;
+DECLARE_OBJ_CHECKERS(PVSCSIState, PVSCSIClass,
+                     PVSCSI, TYPE_PVSCSI)
 
-#define PVSCSI_CLASS(klass) \
-    OBJECT_CLASS_CHECK(PVSCSIClass, (klass), TYPE_PVSCSI)
-#define PVSCSI_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(PVSCSIClass, (obj), TYPE_PVSCSI)
 
 /* Compatibility flags for migration */
 #define PVSCSI_COMPAT_OLD_PCI_CONFIGURATION_BIT 0
@@ -104,7 +104,7 @@ typedef struct PVSCSISGState {
 
 typedef QTAILQ_HEAD(, PVSCSIRequest) PVSCSIRequestList;
 
-typedef struct {
+struct PVSCSIState {
     PCIDevice parent_obj;
     MemoryRegion io_space;
     SCSIBus bus;
@@ -132,7 +132,7 @@ typedef struct {
     uint32_t resetting;                  /* Reset in progress                */
 
     uint32_t compat_flags;
-} PVSCSIState;
+};
 
 typedef struct PVSCSIRequest {
     SCSIRequest *sreq;
diff --git a/hw/sd/allwinner-sdhost.c b/hw/sd/allwinner-sdhost.c
index e82afb75eb..bea6d97ef8 100644
--- a/hw/sd/allwinner-sdhost.c
+++ b/hw/sd/allwinner-sdhost.c
@@ -29,10 +29,12 @@
 #include "hw/sd/allwinner-sdhost.h"
 #include "migration/vmstate.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_AW_SDHOST_BUS "allwinner-sdhost-bus"
-#define AW_SDHOST_BUS(obj) \
-    OBJECT_CHECK(SDBus, (obj), TYPE_AW_SDHOST_BUS)
+/* This is reusing the SDBus typedef from SD_BUS */
+DECLARE_INSTANCE_CHECKER(SDBus, AW_SDHOST_BUS,
+                         TYPE_AW_SDHOST_BUS)
 
 /* SD Host register offsets */
 enum {
diff --git a/hw/sd/bcm2835_sdhost.c b/hw/sd/bcm2835_sdhost.c
index 2c7a675a2d..50f5fdb88b 100644
--- a/hw/sd/bcm2835_sdhost.c
+++ b/hw/sd/bcm2835_sdhost.c
@@ -19,10 +19,12 @@
 #include "hw/sd/bcm2835_sdhost.h"
 #include "migration/vmstate.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_BCM2835_SDHOST_BUS "bcm2835-sdhost-bus"
-#define BCM2835_SDHOST_BUS(obj) \
-    OBJECT_CHECK(SDBus, (obj), TYPE_BCM2835_SDHOST_BUS)
+/* This is reusing the SDBus typedef from SD_BUS */
+DECLARE_INSTANCE_CHECKER(SDBus, BCM2835_SDHOST_BUS,
+                         TYPE_BCM2835_SDHOST_BUS)
 
 #define SDCMD  0x00 /* Command to SD card              - 16 R/W */
 #define SDARG  0x04 /* Argument to SD card             - 32 R/W */
diff --git a/hw/sd/milkymist-memcard.c b/hw/sd/milkymist-memcard.c
index be89a93876..4d3ec28f5d 100644
--- a/hw/sd/milkymist-memcard.c
+++ b/hw/sd/milkymist-memcard.c
@@ -32,6 +32,7 @@
 #include "sysemu/blockdev.h"
 #include "hw/qdev-properties.h"
 #include "hw/sd/sd.h"
+#include "qom/object.h"
 
 enum {
     ENABLE_CMD_TX   = (1<<0),
@@ -63,8 +64,9 @@ enum {
 };
 
 #define TYPE_MILKYMIST_MEMCARD "milkymist-memcard"
-#define MILKYMIST_MEMCARD(obj) \
-    OBJECT_CHECK(MilkymistMemcardState, (obj), TYPE_MILKYMIST_MEMCARD)
+typedef struct MilkymistMemcardState MilkymistMemcardState;
+DECLARE_INSTANCE_CHECKER(MilkymistMemcardState, MILKYMIST_MEMCARD,
+                         TYPE_MILKYMIST_MEMCARD)
 
 #define TYPE_MILKYMIST_SDBUS "milkymist-sdbus"
 
@@ -83,7 +85,6 @@ struct MilkymistMemcardState {
     uint8_t response[17];
     uint32_t regs[R_MAX];
 };
-typedef struct MilkymistMemcardState MilkymistMemcardState;
 
 static void update_pending_bits(MilkymistMemcardState *s)
 {
diff --git a/hw/sd/pl181.c b/hw/sd/pl181.c
index 579d68ad83..7829e933a5 100644
--- a/hw/sd/pl181.c
+++ b/hw/sd/pl181.c
@@ -18,15 +18,18 @@
 #include "qemu/error-report.h"
 #include "qapi/error.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define PL181_FIFO_LEN 16
 
 #define TYPE_PL181 "pl181"
-#define PL181(obj) OBJECT_CHECK(PL181State, (obj), TYPE_PL181)
+typedef struct PL181State PL181State;
+DECLARE_INSTANCE_CHECKER(PL181State, PL181,
+                         TYPE_PL181)
 
 #define TYPE_PL181_BUS "pl181-bus"
 
-typedef struct PL181State {
+struct PL181State {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -56,7 +59,7 @@ typedef struct PL181State {
     /* GPIO outputs for 'card is readonly' and 'card inserted' */
     qemu_irq card_readonly;
     qemu_irq card_inserted;
-} PL181State;
+};
 
 static const VMStateDescription vmstate_pl181 = {
     .name = "pl181",
diff --git a/hw/sd/pxa2xx_mmci.c b/hw/sd/pxa2xx_mmci.c
index 3a47b380dd..3dd2fc7a83 100644
--- a/hw/sd/pxa2xx_mmci.c
+++ b/hw/sd/pxa2xx_mmci.c
@@ -21,9 +21,12 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_PXA2XX_MMCI_BUS "pxa2xx-mmci-bus"
-#define PXA2XX_MMCI_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_PXA2XX_MMCI_BUS)
+/* This is reusing the SDBus typedef from SD_BUS */
+DECLARE_INSTANCE_CHECKER(SDBus, PXA2XX_MMCI_BUS,
+                         TYPE_PXA2XX_MMCI_BUS)
 
 struct PXA2xxMMCIState {
     SysBusDevice parent_obj;
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index 1785d7e1f7..6900213083 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -37,9 +37,12 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define TYPE_SDHCI_BUS "sdhci-bus"
-#define SDHCI_BUS(obj) OBJECT_CHECK(SDBus, (obj), TYPE_SDHCI_BUS)
+/* This is reusing the SDBus typedef from SD_BUS */
+DECLARE_INSTANCE_CHECKER(SDBus, SDHCI_BUS,
+                         TYPE_SDHCI_BUS)
 
 #define MASKED_WRITE(reg, mask, val)  (reg = (reg & (mask)) | (val))
 
diff --git a/hw/sd/ssi-sd.c b/hw/sd/ssi-sd.c
index a7ef9cb922..dd07258d4e 100644
--- a/hw/sd/ssi-sd.c
+++ b/hw/sd/ssi-sd.c
@@ -18,6 +18,7 @@
 #include "hw/sd/sd.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 //#define DEBUG_SSI_SD 1
 
@@ -40,7 +41,7 @@ typedef enum {
     SSI_SD_DATA_READ,
 } ssi_sd_mode;
 
-typedef struct {
+struct ssi_sd_state {
     SSISlave ssidev;
     uint32_t mode;
     int cmd;
@@ -50,10 +51,12 @@ typedef struct {
     int32_t response_pos;
     int32_t stopping;
     SDBus sdbus;
-} ssi_sd_state;
+};
+typedef struct ssi_sd_state ssi_sd_state;
 
 #define TYPE_SSI_SD "ssi-sd"
-#define SSI_SD(obj) OBJECT_CHECK(ssi_sd_state, (obj), TYPE_SSI_SD)
+DECLARE_INSTANCE_CHECKER(ssi_sd_state, SSI_SD,
+                         TYPE_SSI_SD)
 
 /* State word bits.  */
 #define SSI_SDR_LOCKED          0x0001
diff --git a/hw/sh4/sh_pci.c b/hw/sh4/sh_pci.c
index 0a3e86f949..dc73845125 100644
--- a/hw/sh4/sh_pci.c
+++ b/hw/sh4/sh_pci.c
@@ -31,13 +31,15 @@
 #include "qemu/bswap.h"
 #include "qemu/module.h"
 #include "exec/address-spaces.h"
+#include "qom/object.h"
 
 #define TYPE_SH_PCI_HOST_BRIDGE "sh_pci"
 
-#define SH_PCI_HOST_BRIDGE(obj) \
-    OBJECT_CHECK(SHPCIState, (obj), TYPE_SH_PCI_HOST_BRIDGE)
+typedef struct SHPCIState SHPCIState;
+DECLARE_INSTANCE_CHECKER(SHPCIState, SH_PCI_HOST_BRIDGE,
+                         TYPE_SH_PCI_HOST_BRIDGE)
 
-typedef struct SHPCIState {
+struct SHPCIState {
     PCIHostState parent_obj;
 
     PCIDevice *dev;
@@ -48,7 +50,7 @@ typedef struct SHPCIState {
     uint32_t par;
     uint32_t mbr;
     uint32_t iobr;
-} SHPCIState;
+};
 
 static void sh_pci_reg_write (void *p, hwaddr addr, uint64_t val,
                               unsigned size)
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
index 6bf9d27d8a..947b69d159 100644
--- a/hw/sparc/sun4m.c
+++ b/hw/sparc/sun4m.c
@@ -52,6 +52,7 @@
 #include "hw/loader.h"
 #include "elf.h"
 #include "trace.h"
+#include "qom/object.h"
 
 /*
  * Sun4m architecture was used in the following machines:
@@ -334,7 +335,7 @@ static void *sparc32_dma_init(hwaddr dma_base,
                                    OBJECT(dma), "espdma"));
     sysbus_connect_irq(SYS_BUS_DEVICE(espdma), 0, espdma_irq);
 
-    esp = ESP_STATE(object_resolve_path_component(OBJECT(espdma), "esp"));
+    esp = ESP(object_resolve_path_component(OBJECT(espdma), "esp"));
     sysbus_mmio_map(SYS_BUS_DEVICE(esp), 0, esp_base);
     scsi_bus_legacy_handle_cmdline(&esp->esp.bus);
 
@@ -581,14 +582,15 @@ static void idreg_init(hwaddr addr)
                             idreg_data, sizeof(idreg_data));
 }
 
-#define MACIO_ID_REGISTER(obj) \
-    OBJECT_CHECK(IDRegState, (obj), TYPE_MACIO_ID_REGISTER)
+typedef struct IDRegState IDRegState;
+DECLARE_INSTANCE_CHECKER(IDRegState, MACIO_ID_REGISTER,
+                         TYPE_MACIO_ID_REGISTER)
 
-typedef struct IDRegState {
+struct IDRegState {
     SysBusDevice parent_obj;
 
     MemoryRegion mem;
-} IDRegState;
+};
 
 static void idreg_realize(DeviceState *ds, Error **errp)
 {
@@ -623,13 +625,15 @@ static const TypeInfo idreg_info = {
 };
 
 #define TYPE_TCX_AFX "tcx_afx"
-#define TCX_AFX(obj) OBJECT_CHECK(AFXState, (obj), TYPE_TCX_AFX)
+typedef struct AFXState AFXState;
+DECLARE_INSTANCE_CHECKER(AFXState, TCX_AFX,
+                         TYPE_TCX_AFX)
 
-typedef struct AFXState {
+struct AFXState {
     SysBusDevice parent_obj;
 
     MemoryRegion mem;
-} AFXState;
+};
 
 /* SS-5 TCX AFX register */
 static void afx_init(hwaddr addr)
@@ -676,13 +680,15 @@ static const TypeInfo afx_info = {
 };
 
 #define TYPE_OPENPROM "openprom"
-#define OPENPROM(obj) OBJECT_CHECK(PROMState, (obj), TYPE_OPENPROM)
+typedef struct PROMState PROMState;
+DECLARE_INSTANCE_CHECKER(PROMState, OPENPROM,
+                         TYPE_OPENPROM)
 
-typedef struct PROMState {
+struct PROMState {
     SysBusDevice parent_obj;
 
     MemoryRegion prom;
-} PROMState;
+};
 
 /* Boot PROM (OpenBIOS) */
 static uint64_t translate_prom_address(void *opaque, uint64_t addr)
@@ -764,12 +770,14 @@ static const TypeInfo prom_info = {
 };
 
 #define TYPE_SUN4M_MEMORY "memory"
-#define SUN4M_RAM(obj) OBJECT_CHECK(RamDevice, (obj), TYPE_SUN4M_MEMORY)
+typedef struct RamDevice RamDevice;
+DECLARE_INSTANCE_CHECKER(RamDevice, SUN4M_RAM,
+                         TYPE_SUN4M_MEMORY)
 
-typedef struct RamDevice {
+struct RamDevice {
     SysBusDevice parent_obj;
     HostMemoryBackend *memdev;
-} RamDevice;
+};
 
 /* System RAM */
 static void ram_realize(DeviceState *dev, Error **errp)
diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c
index 37310b73e6..b4aabfc076 100644
--- a/hw/sparc64/sun4u.c
+++ b/hw/sparc64/sun4u.c
@@ -55,6 +55,7 @@
 #include "hw/fw-path-provider.h"
 #include "elf.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define KERNEL_LOAD_ADDR     0x00404000
 #define CMDLINE_ADDR         0x003ff000
@@ -79,7 +80,7 @@ struct hwdef {
     uint64_t console_serial_base;
 };
 
-typedef struct EbusState {
+struct EbusState {
     /*< private >*/
     PCIDevice parent_obj;
 
@@ -88,10 +89,12 @@ typedef struct EbusState {
     uint64_t console_serial_base;
     MemoryRegion bar0;
     MemoryRegion bar1;
-} EbusState;
+};
+typedef struct EbusState EbusState;
 
 #define TYPE_EBUS "ebus"
-#define EBUS(obj) OBJECT_CHECK(EbusState, (obj), TYPE_EBUS)
+DECLARE_INSTANCE_CHECKER(EbusState, EBUS,
+                         TYPE_EBUS)
 
 const char *fw_cfg_arch_key_name(uint16_t key)
 {
@@ -226,13 +229,15 @@ typedef struct ResetData {
 } ResetData;
 
 #define TYPE_SUN4U_POWER "power"
-#define SUN4U_POWER(obj) OBJECT_CHECK(PowerDevice, (obj), TYPE_SUN4U_POWER)
+typedef struct PowerDevice PowerDevice;
+DECLARE_INSTANCE_CHECKER(PowerDevice, SUN4U_POWER,
+                         TYPE_SUN4U_POWER)
 
-typedef struct PowerDevice {
+struct PowerDevice {
     SysBusDevice parent_obj;
 
     MemoryRegion power_mmio;
-} PowerDevice;
+};
 
 /* Power */
 static uint64_t power_mem_read(void *opaque, hwaddr addr, unsigned size)
@@ -399,13 +404,15 @@ static const TypeInfo ebus_info = {
 };
 
 #define TYPE_OPENPROM "openprom"
-#define OPENPROM(obj) OBJECT_CHECK(PROMState, (obj), TYPE_OPENPROM)
+typedef struct PROMState PROMState;
+DECLARE_INSTANCE_CHECKER(PROMState, OPENPROM,
+                         TYPE_OPENPROM)
 
-typedef struct PROMState {
+struct PROMState {
     SysBusDevice parent_obj;
 
     MemoryRegion prom;
-} PROMState;
+};
 
 static uint64_t translate_prom_address(void *opaque, uint64_t addr)
 {
@@ -487,14 +494,16 @@ static const TypeInfo prom_info = {
 
 
 #define TYPE_SUN4U_MEMORY "memory"
-#define SUN4U_RAM(obj) OBJECT_CHECK(RamDevice, (obj), TYPE_SUN4U_MEMORY)
+typedef struct RamDevice RamDevice;
+DECLARE_INSTANCE_CHECKER(RamDevice, SUN4U_RAM,
+                         TYPE_SUN4U_MEMORY)
 
-typedef struct RamDevice {
+struct RamDevice {
     SysBusDevice parent_obj;
 
     MemoryRegion ram;
     uint64_t size;
-} RamDevice;
+};
 
 /* System RAM */
 static void ram_realize(DeviceState *dev, Error **errp)
@@ -576,7 +585,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
     prom_init(hwdef->prom_addr, bios_name);
 
     /* Init sabre (PCI host bridge) */
-    sabre = SABRE_DEVICE(qdev_new(TYPE_SABRE));
+    sabre = SABRE(qdev_new(TYPE_SABRE));
     qdev_prop_set_uint64(DEVICE(sabre), "special-base", PBM_SPECIAL_BASE);
     qdev_prop_set_uint64(DEVICE(sabre), "mem-base", PBM_MEM_BASE);
     object_property_set_link(OBJECT(sabre), "iommu", OBJECT(iommu),
diff --git a/hw/ssi/ssi.c b/hw/ssi/ssi.c
index a35d7ebb26..faf7633e70 100644
--- a/hw/ssi/ssi.c
+++ b/hw/ssi/ssi.c
@@ -17,13 +17,15 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 struct SSIBus {
     BusState parent_obj;
 };
 
 #define TYPE_SSI_BUS "SSI"
-#define SSI_BUS(obj) OBJECT_CHECK(SSIBus, (obj), TYPE_SSI_BUS)
+DECLARE_INSTANCE_CHECKER(SSIBus, SSI_BUS,
+                         TYPE_SSI_BUS)
 
 static const TypeInfo ssi_bus_info = {
     .name = TYPE_SSI_BUS,
diff --git a/hw/ssi/xilinx_spi.c b/hw/ssi/xilinx_spi.c
index 80d1488dc7..34fc8da69a 100644
--- a/hw/ssi/xilinx_spi.c
+++ b/hw/ssi/xilinx_spi.c
@@ -34,6 +34,7 @@
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
 #include "hw/ssi/ssi.h"
+#include "qom/object.h"
 
 #ifdef XILINX_SPI_ERR_DEBUG
 #define DB_PRINT(...) do { \
@@ -78,9 +79,11 @@
 #define FIFO_CAPACITY 256
 
 #define TYPE_XILINX_SPI "xlnx.xps-spi"
-#define XILINX_SPI(obj) OBJECT_CHECK(XilinxSPI, (obj), TYPE_XILINX_SPI)
+typedef struct XilinxSPI XilinxSPI;
+DECLARE_INSTANCE_CHECKER(XilinxSPI, XILINX_SPI,
+                         TYPE_XILINX_SPI)
 
-typedef struct XilinxSPI {
+struct XilinxSPI {
     SysBusDevice parent_obj;
 
     MemoryRegion mmio;
@@ -97,7 +100,7 @@ typedef struct XilinxSPI {
     Fifo8 tx_fifo;
 
     uint32_t regs[R_MAX];
-} XilinxSPI;
+};
 
 static void txfifo_reset(XilinxSPI *s)
 {
diff --git a/hw/timer/altera_timer.c b/hw/timer/altera_timer.c
index be81b7a518..c694c98d08 100644
--- a/hw/timer/altera_timer.c
+++ b/hw/timer/altera_timer.c
@@ -26,6 +26,7 @@
 #include "hw/irq.h"
 #include "hw/ptimer.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
 #define R_STATUS      0
 #define R_CONTROL     1
@@ -44,17 +45,18 @@
 #define CONTROL_STOP  0x0008
 
 #define TYPE_ALTERA_TIMER "ALTR.timer"
-#define ALTERA_TIMER(obj) \
-    OBJECT_CHECK(AlteraTimer, (obj), TYPE_ALTERA_TIMER)
+typedef struct AlteraTimer AlteraTimer;
+DECLARE_INSTANCE_CHECKER(AlteraTimer, ALTERA_TIMER,
+                         TYPE_ALTERA_TIMER)
 
-typedef struct AlteraTimer {
+struct AlteraTimer {
     SysBusDevice  busdev;
     MemoryRegion  mmio;
     qemu_irq      irq;
     uint32_t      freq_hz;
     ptimer_state *ptimer;
     uint32_t      regs[R_MAX];
-} AlteraTimer;
+};
 
 static int timer_irq_state(AlteraTimer *t)
 {
diff --git a/hw/timer/arm_timer.c b/hw/timer/arm_timer.c
index 9607366d78..79117f45b0 100644
--- a/hw/timer/arm_timer.c
+++ b/hw/timer/arm_timer.c
@@ -16,6 +16,7 @@
 #include "hw/qdev-properties.h"
 #include "qemu/module.h"
 #include "qemu/log.h"
+#include "qom/object.h"
 
 /* Common timer implementation.  */
 
@@ -190,9 +191,11 @@ static arm_timer_state *arm_timer_init(uint32_t freq)
 */
 
 #define TYPE_SP804 "sp804"
-#define SP804(obj) OBJECT_CHECK(SP804State, (obj), TYPE_SP804)
+typedef struct SP804State SP804State;
+DECLARE_INSTANCE_CHECKER(SP804State, SP804,
+                         TYPE_SP804)
 
-typedef struct SP804State {
+struct SP804State {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -200,7 +203,7 @@ typedef struct SP804State {
     uint32_t freq0, freq1;
     int level[2];
     qemu_irq irq;
-} SP804State;
+};
 
 static const uint8_t sp804_ids[] = {
     /* Timer ID */
@@ -310,15 +313,16 @@ static void sp804_realize(DeviceState *dev, Error **errp)
 /* Integrator/CP timer module.  */
 
 #define TYPE_INTEGRATOR_PIT "integrator_pit"
-#define INTEGRATOR_PIT(obj) \
-    OBJECT_CHECK(icp_pit_state, (obj), TYPE_INTEGRATOR_PIT)
+typedef struct icp_pit_state icp_pit_state;
+DECLARE_INSTANCE_CHECKER(icp_pit_state, INTEGRATOR_PIT,
+                         TYPE_INTEGRATOR_PIT)
 
-typedef struct {
+struct icp_pit_state {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     arm_timer_state *timer[3];
-} icp_pit_state;
+};
 
 static uint64_t icp_pit_read(void *opaque, hwaddr offset,
                              unsigned size)
diff --git a/hw/timer/cadence_ttc.c b/hw/timer/cadence_ttc.c
index b0ba6b2bba..52e637545a 100644
--- a/hw/timer/cadence_ttc.c
+++ b/hw/timer/cadence_ttc.c
@@ -22,6 +22,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "qemu/timer.h"
+#include "qom/object.h"
 
 #ifdef CADENCE_TTC_ERR_DEBUG
 #define DB_PRINT(...) do { \
@@ -69,15 +70,16 @@ typedef struct {
 } CadenceTimerState;
 
 #define TYPE_CADENCE_TTC "cadence_ttc"
-#define CADENCE_TTC(obj) \
-    OBJECT_CHECK(CadenceTTCState, (obj), TYPE_CADENCE_TTC)
+typedef struct CadenceTTCState CadenceTTCState;
+DECLARE_INSTANCE_CHECKER(CadenceTTCState, CADENCE_TTC,
+                         TYPE_CADENCE_TTC)
 
-typedef struct CadenceTTCState {
+struct CadenceTTCState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
     CadenceTimerState timer[3];
-} CadenceTTCState;
+};
 
 static void cadence_timer_update(CadenceTimerState *s)
 {
diff --git a/hw/timer/etraxfs_timer.c b/hw/timer/etraxfs_timer.c
index afe3d30a8e..48f2e3ade2 100644
--- a/hw/timer/etraxfs_timer.c
+++ b/hw/timer/etraxfs_timer.c
@@ -30,6 +30,7 @@
 #include "qemu/timer.h"
 #include "hw/irq.h"
 #include "hw/ptimer.h"
+#include "qom/object.h"
 
 #define D(x)
 
@@ -48,10 +49,11 @@
 #define R_MASKED_INTR 0x54
 
 #define TYPE_ETRAX_FS_TIMER "etraxfs,timer"
-#define ETRAX_TIMER(obj) \
-    OBJECT_CHECK(ETRAXTimerState, (obj), TYPE_ETRAX_FS_TIMER)
+typedef struct ETRAXTimerState ETRAXTimerState;
+DECLARE_INSTANCE_CHECKER(ETRAXTimerState, ETRAX_TIMER,
+                         TYPE_ETRAX_FS_TIMER)
 
-typedef struct ETRAXTimerState {
+struct ETRAXTimerState {
     SysBusDevice parent_obj;
 
     MemoryRegion mmio;
@@ -79,7 +81,7 @@ typedef struct ETRAXTimerState {
     uint32_t rw_ack_intr;
     uint32_t r_intr;
     uint32_t r_masked_intr;
-} ETRAXTimerState;
+};
 
 static uint64_t
 timer_read(void *opaque, hwaddr addr, unsigned int size)
diff --git a/hw/timer/exynos4210_mct.c b/hw/timer/exynos4210_mct.c
index 29a4b10676..0329cae3d9 100644
--- a/hw/timer/exynos4210_mct.c
+++ b/hw/timer/exynos4210_mct.c
@@ -62,6 +62,7 @@
 
 #include "hw/arm/exynos4210.h"
 #include "hw/irq.h"
+#include "qom/object.h"
 
 //#define DEBUG_MCT
 
@@ -242,10 +243,11 @@ typedef struct {
 } Exynos4210MCTLT;
 
 #define TYPE_EXYNOS4210_MCT "exynos4210.mct"
-#define EXYNOS4210_MCT(obj) \
-    OBJECT_CHECK(Exynos4210MCTState, (obj), TYPE_EXYNOS4210_MCT)
+typedef struct Exynos4210MCTState Exynos4210MCTState;
+DECLARE_INSTANCE_CHECKER(Exynos4210MCTState, EXYNOS4210_MCT,
+                         TYPE_EXYNOS4210_MCT)
 
-typedef struct Exynos4210MCTState {
+struct Exynos4210MCTState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -257,7 +259,7 @@ typedef struct Exynos4210MCTState {
     Exynos4210MCTGT g_timer;
 
     uint32_t    freq;                   /* all timers tick frequency, TCLK */
-} Exynos4210MCTState;
+};
 
 /*** VMState ***/
 static const VMStateDescription vmstate_tick_timer = {
diff --git a/hw/timer/exynos4210_pwm.c b/hw/timer/exynos4210_pwm.c
index 59a8c08db0..5340fc0425 100644
--- a/hw/timer/exynos4210_pwm.c
+++ b/hw/timer/exynos4210_pwm.c
@@ -30,6 +30,7 @@
 
 #include "hw/arm/exynos4210.h"
 #include "hw/irq.h"
+#include "qom/object.h"
 
 //#define DEBUG_PWM
 
@@ -102,10 +103,11 @@ typedef struct {
 } Exynos4210PWM;
 
 #define TYPE_EXYNOS4210_PWM "exynos4210.pwm"
-#define EXYNOS4210_PWM(obj) \
-    OBJECT_CHECK(Exynos4210PWMState, (obj), TYPE_EXYNOS4210_PWM)
+typedef struct Exynos4210PWMState Exynos4210PWMState;
+DECLARE_INSTANCE_CHECKER(Exynos4210PWMState, EXYNOS4210_PWM,
+                         TYPE_EXYNOS4210_PWM)
 
-typedef struct Exynos4210PWMState {
+struct Exynos4210PWMState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -116,7 +118,7 @@ typedef struct Exynos4210PWMState {
 
     Exynos4210PWM timer[EXYNOS4210_PWM_TIMERS_NUM];
 
-} Exynos4210PWMState;
+};
 
 /*** VMState ***/
 static const VMStateDescription vmstate_exynos4210_pwm = {
diff --git a/hw/timer/grlib_gptimer.c b/hw/timer/grlib_gptimer.c
index eff0ee3491..e539fc24f0 100644
--- a/hw/timer/grlib_gptimer.c
+++ b/hw/timer/grlib_gptimer.c
@@ -32,6 +32,7 @@
 #include "qemu/module.h"
 
 #include "trace.h"
+#include "qom/object.h"
 
 #define UNIT_REG_SIZE    16     /* Size of memory mapped regs for the unit */
 #define GPTIMER_REG_SIZE 16     /* Size of memory mapped regs for a GPTimer */
@@ -55,11 +56,11 @@
 #define COUNTER_RELOAD_OFFSET 0x04
 #define TIMER_BASE            0x10
 
-#define GRLIB_GPTIMER(obj) \
-    OBJECT_CHECK(GPTimerUnit, (obj), TYPE_GRLIB_GPTIMER)
+typedef struct GPTimerUnit GPTimerUnit;
+DECLARE_INSTANCE_CHECKER(GPTimerUnit, GRLIB_GPTIMER,
+                         TYPE_GRLIB_GPTIMER)
 
 typedef struct GPTimer     GPTimer;
-typedef struct GPTimerUnit GPTimerUnit;
 
 struct GPTimer {
     struct ptimer_state *ptimer;
diff --git a/hw/timer/hpet.c b/hw/timer/hpet.c
index 380acfa7c8..44bbe3a536 100644
--- a/hw/timer/hpet.c
+++ b/hw/timer/hpet.c
@@ -37,6 +37,7 @@
 #include "migration/vmstate.h"
 #include "hw/timer/i8254.h"
 #include "exec/address-spaces.h"
+#include "qom/object.h"
 
 //#define HPET_DEBUG
 #ifdef HPET_DEBUG
@@ -47,7 +48,9 @@
 
 #define HPET_MSI_SUPPORT        0
 
-#define HPET(obj) OBJECT_CHECK(HPETState, (obj), TYPE_HPET)
+typedef struct HPETState HPETState;
+DECLARE_INSTANCE_CHECKER(HPETState, HPET,
+                         TYPE_HPET)
 
 struct HPETState;
 typedef struct HPETTimer {  /* timers */
@@ -65,7 +68,7 @@ typedef struct HPETTimer {  /* timers */
                              */
 } HPETTimer;
 
-typedef struct HPETState {
+struct HPETState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -87,7 +90,7 @@ typedef struct HPETState {
     uint64_t isr;               /* interrupt status reg */
     uint64_t hpet_counter;      /* main counter */
     uint8_t  hpet_id;           /* instance id */
-} HPETState;
+};
 
 static uint32_t hpet_in_legacy_mode(HPETState *s)
 {
diff --git a/hw/timer/i8254.c b/hw/timer/i8254.c
index 29f62e5356..c01ee2c72a 100644
--- a/hw/timer/i8254.c
+++ b/hw/timer/i8254.c
@@ -28,6 +28,7 @@
 #include "qemu/timer.h"
 #include "hw/timer/i8254.h"
 #include "hw/timer/i8254_internal.h"
+#include "qom/object.h"
 
 //#define DEBUG_PIT
 
@@ -36,14 +37,15 @@
 #define RW_STATE_WORD0 3
 #define RW_STATE_WORD1 4
 
-#define PIT_CLASS(class) OBJECT_CLASS_CHECK(PITClass, (class), TYPE_I8254)
-#define PIT_GET_CLASS(obj) OBJECT_GET_CLASS(PITClass, (obj), TYPE_I8254)
+typedef struct PITClass PITClass;
+DECLARE_CLASS_CHECKERS(PITClass, PIT,
+                       TYPE_I8254)
 
-typedef struct PITClass {
+struct PITClass {
     PITCommonClass parent_class;
 
     DeviceRealize parent_realize;
-} PITClass;
+};
 
 static void pit_irq_timer_update(PITChannelState *s, int64_t current_time);
 
diff --git a/hw/timer/lm32_timer.c b/hw/timer/lm32_timer.c
index f703f407f5..93ecb51a97 100644
--- a/hw/timer/lm32_timer.c
+++ b/hw/timer/lm32_timer.c
@@ -31,6 +31,7 @@
 #include "hw/qdev-properties.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define DEFAULT_FREQUENCY (50*1000000)
 
@@ -55,7 +56,9 @@ enum {
 };
 
 #define TYPE_LM32_TIMER "lm32-timer"
-#define LM32_TIMER(obj) OBJECT_CHECK(LM32TimerState, (obj), TYPE_LM32_TIMER)
+typedef struct LM32TimerState LM32TimerState;
+DECLARE_INSTANCE_CHECKER(LM32TimerState, LM32_TIMER,
+                         TYPE_LM32_TIMER)
 
 struct LM32TimerState {
     SysBusDevice parent_obj;
@@ -69,7 +72,6 @@ struct LM32TimerState {
 
     uint32_t regs[R_MAX];
 };
-typedef struct LM32TimerState LM32TimerState;
 
 static void timer_update_irq(LM32TimerState *s)
 {
diff --git a/hw/timer/milkymist-sysctl.c b/hw/timer/milkymist-sysctl.c
index 94389820b2..29500e0457 100644
--- a/hw/timer/milkymist-sysctl.c
+++ b/hw/timer/milkymist-sysctl.c
@@ -32,6 +32,7 @@
 #include "hw/qdev-properties.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 enum {
     CTRL_ENABLE      = (1<<0),
@@ -62,8 +63,9 @@ enum {
 };
 
 #define TYPE_MILKYMIST_SYSCTL "milkymist-sysctl"
-#define MILKYMIST_SYSCTL(obj) \
-    OBJECT_CHECK(MilkymistSysctlState, (obj), TYPE_MILKYMIST_SYSCTL)
+typedef struct MilkymistSysctlState MilkymistSysctlState;
+DECLARE_INSTANCE_CHECKER(MilkymistSysctlState, MILKYMIST_SYSCTL,
+                         TYPE_MILKYMIST_SYSCTL)
 
 struct MilkymistSysctlState {
     SysBusDevice parent_obj;
@@ -84,7 +86,6 @@ struct MilkymistSysctlState {
     qemu_irq timer0_irq;
     qemu_irq timer1_irq;
 };
-typedef struct MilkymistSysctlState MilkymistSysctlState;
 
 static void sysctl_icap_write(MilkymistSysctlState *s, uint32_t value)
 {
diff --git a/hw/timer/puv3_ost.c b/hw/timer/puv3_ost.c
index f76b0bb1ca..3a35ac2b0a 100644
--- a/hw/timer/puv3_ost.c
+++ b/hw/timer/puv3_ost.c
@@ -15,15 +15,18 @@
 #include "hw/ptimer.h"
 #include "qemu/module.h"
 #include "qemu/log.h"
+#include "qom/object.h"
 
 #undef DEBUG_PUV3
 #include "hw/unicore32/puv3.h"
 
 #define TYPE_PUV3_OST "puv3_ost"
-#define PUV3_OST(obj) OBJECT_CHECK(PUV3OSTState, (obj), TYPE_PUV3_OST)
+typedef struct PUV3OSTState PUV3OSTState;
+DECLARE_INSTANCE_CHECKER(PUV3OSTState, PUV3_OST,
+                         TYPE_PUV3_OST)
 
 /* puv3 ostimer implementation. */
-typedef struct PUV3OSTState {
+struct PUV3OSTState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem;
@@ -34,7 +37,7 @@ typedef struct PUV3OSTState {
     uint32_t reg_OSCR;
     uint32_t reg_OSSR;
     uint32_t reg_OIER;
-} PUV3OSTState;
+};
 
 static uint64_t puv3_ost_read(void *opaque, hwaddr offset,
         unsigned size)
diff --git a/hw/timer/pxa2xx_timer.c b/hw/timer/pxa2xx_timer.c
index 944c165889..8c3a1f5489 100644
--- a/hw/timer/pxa2xx_timer.c
+++ b/hw/timer/pxa2xx_timer.c
@@ -17,6 +17,7 @@
 #include "migration/vmstate.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define OSMR0	0x00
 #define OSMR1	0x04
@@ -66,10 +67,10 @@ static int pxa2xx_timer4_freq[8] = {
 };
 
 #define TYPE_PXA2XX_TIMER "pxa2xx-timer"
-#define PXA2XX_TIMER(obj) \
-    OBJECT_CHECK(PXA2xxTimerInfo, (obj), TYPE_PXA2XX_TIMER)
-
 typedef struct PXA2xxTimerInfo PXA2xxTimerInfo;
+DECLARE_INSTANCE_CHECKER(PXA2xxTimerInfo, PXA2XX_TIMER,
+                         TYPE_PXA2XX_TIMER)
+
 
 typedef struct {
     uint32_t value;
diff --git a/hw/timer/slavio_timer.c b/hw/timer/slavio_timer.c
index 4c5d65e391..08d6888015 100644
--- a/hw/timer/slavio_timer.c
+++ b/hw/timer/slavio_timer.c
@@ -31,6 +31,7 @@
 #include "migration/vmstate.h"
 #include "trace.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /*
  * Registers of hardware timer in sun4m.
@@ -59,16 +60,17 @@ typedef struct CPUTimerState {
 } CPUTimerState;
 
 #define TYPE_SLAVIO_TIMER "slavio_timer"
-#define SLAVIO_TIMER(obj) \
-    OBJECT_CHECK(SLAVIO_TIMERState, (obj), TYPE_SLAVIO_TIMER)
+typedef struct SLAVIO_TIMERState SLAVIO_TIMERState;
+DECLARE_INSTANCE_CHECKER(SLAVIO_TIMERState, SLAVIO_TIMER,
+                         TYPE_SLAVIO_TIMER)
 
-typedef struct SLAVIO_TIMERState {
+struct SLAVIO_TIMERState {
     SysBusDevice parent_obj;
 
     uint32_t num_cpus;
     uint32_t cputimer_mode;
     CPUTimerState cputimer[MAX_CPUS + 1];
-} SLAVIO_TIMERState;
+};
 
 typedef struct TimerContext {
     MemoryRegion iomem;
diff --git a/hw/timer/xilinx_timer.c b/hw/timer/xilinx_timer.c
index 0190aa47d0..1eb927eb84 100644
--- a/hw/timer/xilinx_timer.c
+++ b/hw/timer/xilinx_timer.c
@@ -29,6 +29,7 @@
 #include "hw/qdev-properties.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define D(x)
 
@@ -61,8 +62,8 @@ struct xlx_timer
 };
 
 #define TYPE_XILINX_TIMER "xlnx.xps-timer"
-#define XILINX_TIMER(obj) \
-    OBJECT_CHECK(struct timerblock, (obj), TYPE_XILINX_TIMER)
+DECLARE_INSTANCE_CHECKER(struct timerblock, XILINX_TIMER,
+                         TYPE_XILINX_TIMER)
 
 struct timerblock
 {
diff --git a/hw/tpm/tpm_crb.c b/hw/tpm/tpm_crb.c
index 60247295d4..aa9c00aad3 100644
--- a/hw/tpm/tpm_crb.c
+++ b/hw/tpm/tpm_crb.c
@@ -29,8 +29,9 @@
 #include "tpm_prop.h"
 #include "tpm_ppi.h"
 #include "trace.h"
+#include "qom/object.h"
 
-typedef struct CRBState {
+struct CRBState {
     DeviceState parent_obj;
 
     TPMBackend *tpmbe;
@@ -43,9 +44,11 @@ typedef struct CRBState {
 
     bool ppi_enabled;
     TPMPPI ppi;
-} CRBState;
+};
+typedef struct CRBState CRBState;
 
-#define CRB(obj) OBJECT_CHECK(CRBState, (obj), TYPE_TPM_CRB)
+DECLARE_INSTANCE_CHECKER(CRBState, CRB,
+                         TYPE_TPM_CRB)
 
 #define CRB_INTF_TYPE_CRB_ACTIVE 0b1
 #define CRB_INTF_VERSION_CRB 0b1
diff --git a/hw/tpm/tpm_spapr.c b/hw/tpm/tpm_spapr.c
index 8288ab0a15..e3775adc57 100644
--- a/hw/tpm/tpm_spapr.c
+++ b/hw/tpm/tpm_spapr.c
@@ -26,11 +26,13 @@
 #include "hw/ppc/spapr.h"
 #include "hw/ppc/spapr_vio.h"
 #include "trace.h"
+#include "qom/object.h"
 
 #define DEBUG_SPAPR 0
 
-#define VIO_SPAPR_VTPM(obj) \
-     OBJECT_CHECK(SpaprTpmState, (obj), TYPE_TPM_SPAPR)
+typedef struct SpaprTpmState SpaprTpmState;
+DECLARE_INSTANCE_CHECKER(SpaprTpmState, VIO_SPAPR_VTPM,
+                         TYPE_TPM_SPAPR)
 
 typedef struct TpmCrq {
     uint8_t valid;  /* 0x80: cmd; 0xc0: init crq */
@@ -64,7 +66,7 @@ typedef struct TpmCrq {
 
 #define TPM_SPAPR_BUFFER_MAX                 4096
 
-typedef struct {
+struct SpaprTpmState {
     SpaprVioDevice vdev;
 
     TpmCrq crq; /* track single TPM command */
@@ -84,7 +86,7 @@ typedef struct {
     TPMVersion be_tpm_version;
 
     size_t be_buffer_size;
-} SpaprTpmState;
+};
 
 /*
  * Send a request to the TPM.
diff --git a/hw/tpm/tpm_tis_isa.c b/hw/tpm/tpm_tis_isa.c
index 5faf6231c0..fafdcffa9c 100644
--- a/hw/tpm/tpm_tis_isa.c
+++ b/hw/tpm/tpm_tis_isa.c
@@ -29,16 +29,19 @@
 #include "hw/acpi/tpm.h"
 #include "tpm_prop.h"
 #include "tpm_tis.h"
+#include "qom/object.h"
 
-typedef struct TPMStateISA {
+struct TPMStateISA {
     /*< private >*/
     ISADevice parent_obj;
 
     /*< public >*/
     TPMState state; /* not a QOM object */
-} TPMStateISA;
+};
+typedef struct TPMStateISA TPMStateISA;
 
-#define TPM_TIS_ISA(obj) OBJECT_CHECK(TPMStateISA, (obj), TYPE_TPM_TIS_ISA)
+DECLARE_INSTANCE_CHECKER(TPMStateISA, TPM_TIS_ISA,
+                         TYPE_TPM_TIS_ISA)
 
 static int tpm_tis_pre_save_isa(void *opaque)
 {
diff --git a/hw/tpm/tpm_tis_sysbus.c b/hw/tpm/tpm_tis_sysbus.c
index 4a3bc70625..20b28eeb28 100644
--- a/hw/tpm/tpm_tis_sysbus.c
+++ b/hw/tpm/tpm_tis_sysbus.c
@@ -29,16 +29,19 @@
 #include "tpm_prop.h"
 #include "hw/sysbus.h"
 #include "tpm_tis.h"
+#include "qom/object.h"
 
-typedef struct TPMStateSysBus {
+struct TPMStateSysBus {
     /*< private >*/
     SysBusDevice parent_obj;
 
     /*< public >*/
     TPMState state; /* not a QOM object */
-} TPMStateSysBus;
+};
+typedef struct TPMStateSysBus TPMStateSysBus;
 
-#define TPM_TIS_SYSBUS(obj) OBJECT_CHECK(TPMStateSysBus, (obj), TYPE_TPM_TIS_SYSBUS)
+DECLARE_INSTANCE_CHECKER(TPMStateSysBus, TPM_TIS_SYSBUS,
+                         TYPE_TPM_TIS_SYSBUS)
 
 static int tpm_tis_pre_save_sysbus(void *opaque)
 {
diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c
index 0f1afd66be..5e4649d367 100644
--- a/hw/usb/ccid-card-emulated.c
+++ b/hw/usb/ccid-card-emulated.c
@@ -35,6 +35,7 @@
 #include "ccid.h"
 #include "hw/qdev-properties.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 #define DPRINTF(card, lvl, fmt, ...) \
 do {\
@@ -45,8 +46,9 @@ do {\
 
 
 #define TYPE_EMULATED_CCID "ccid-card-emulated"
-#define EMULATED_CCID_CARD(obj) \
-    OBJECT_CHECK(EmulatedState, (obj), TYPE_EMULATED_CCID)
+typedef struct EmulatedState EmulatedState;
+DECLARE_INSTANCE_CHECKER(EmulatedState, EMULATED_CCID_CARD,
+                         TYPE_EMULATED_CCID)
 
 #define BACKEND_NSS_EMULATED_NAME "nss-emulated"
 #define BACKEND_CERTIFICATES_NAME "certificates"
@@ -58,7 +60,6 @@ enum {
 
 #define DEFAULT_BACKEND BACKEND_NSS_EMULATED
 
-typedef struct EmulatedState EmulatedState;
 
 enum {
     EMUL_READER_INSERT = 0,
diff --git a/hw/usb/ccid-card-passthru.c b/hw/usb/ccid-card-passthru.c
index bb325dbc4a..e8e9d37e88 100644
--- a/hw/usb/ccid-card-passthru.c
+++ b/hw/usb/ccid-card-passthru.c
@@ -20,6 +20,7 @@
 #include "qemu/sockets.h"
 #include "ccid.h"
 #include "qapi/error.h"
+#include "qom/object.h"
 
 #define DPRINTF(card, lvl, fmt, ...)                    \
 do {                                                    \
@@ -64,8 +65,8 @@ struct PassthruState {
 };
 
 #define TYPE_CCID_PASSTHRU "ccid-card-passthru"
-#define PASSTHRU_CCID_CARD(obj) \
-    OBJECT_CHECK(PassthruState, (obj), TYPE_CCID_PASSTHRU)
+DECLARE_INSTANCE_CHECKER(PassthruState, PASSTHRU_CCID_CARD,
+                         TYPE_CCID_PASSTHRU)
 
 /*
  * VSCard protocol over chardev
diff --git a/hw/usb/ccid.h b/hw/usb/ccid.h
index 531bf28fb0..ef2bb3462d 100644
--- a/hw/usb/ccid.h
+++ b/hw/usb/ccid.h
@@ -11,23 +11,21 @@
 #define CCID_H
 
 #include "hw/qdev-core.h"
+#include "qom/object.h"
 
 typedef struct CCIDCardState CCIDCardState;
 typedef struct CCIDCardInfo CCIDCardInfo;
 
 #define TYPE_CCID_CARD "ccid-card"
-#define CCID_CARD(obj) \
-     OBJECT_CHECK(CCIDCardState, (obj), TYPE_CCID_CARD)
-#define CCID_CARD_CLASS(klass) \
-     OBJECT_CLASS_CHECK(CCIDCardClass, (klass), TYPE_CCID_CARD)
-#define CCID_CARD_GET_CLASS(obj) \
-     OBJECT_GET_CLASS(CCIDCardClass, (obj), TYPE_CCID_CARD)
+typedef struct CCIDCardClass CCIDCardClass;
+DECLARE_OBJ_CHECKERS(CCIDCardState, CCIDCardClass,
+                     CCID_CARD, TYPE_CCID_CARD)
 
 /*
  * callbacks to be used by the CCID device (hw/usb-ccid.c) to call
  * into the smartcard device (hw/ccid-card-*.c)
  */
-typedef struct CCIDCardClass {
+struct CCIDCardClass {
     /*< private >*/
     DeviceClass parent_class;
     /*< public >*/
@@ -37,7 +35,7 @@ typedef struct CCIDCardClass {
                             uint32_t len);
     void (*realize)(CCIDCardState *card, Error **errp);
     void (*unrealize)(CCIDCardState *card);
-} CCIDCardClass;
+};
 
 /*
  * state of the CCID Card device (i.e. hw/ccid-card-*.c)
diff --git a/hw/usb/dev-audio.c b/hw/usb/dev-audio.c
index 1371c44f48..65247ca799 100644
--- a/hw/usb/dev-audio.c
+++ b/hw/usb/dev-audio.c
@@ -36,6 +36,7 @@
 #include "migration/vmstate.h"
 #include "desc.h"
 #include "audio/audio.h"
+#include "qom/object.h"
 
 static void usb_audio_reinit(USBDevice *dev, unsigned channels);
 
@@ -633,7 +634,7 @@ static uint8_t *streambuf_get(struct streambuf *buf, size_t *len)
     return data;
 }
 
-typedef struct USBAudioState {
+struct USBAudioState {
     /* qemu interfaces */
     USBDevice dev;
     QEMUSoundCard card;
@@ -652,10 +653,12 @@ typedef struct USBAudioState {
     uint32_t debug;
     uint32_t buffer_user, buffer;
     bool multi;
-} USBAudioState;
+};
+typedef struct USBAudioState USBAudioState;
 
 #define TYPE_USB_AUDIO "usb-audio"
-#define USB_AUDIO(obj) OBJECT_CHECK(USBAudioState, (obj), TYPE_USB_AUDIO)
+DECLARE_INSTANCE_CHECKER(USBAudioState, USB_AUDIO,
+                         TYPE_USB_AUDIO)
 
 static void output_callback(void *opaque, int avail)
 {
diff --git a/hw/usb/dev-hid.c b/hw/usb/dev-hid.c
index c73f7b2fe2..05cfe6baca 100644
--- a/hw/usb/dev-hid.c
+++ b/hw/usb/dev-hid.c
@@ -34,18 +34,21 @@
 #include "hw/input/hid.h"
 #include "hw/usb/hid.h"
 #include "hw/qdev-properties.h"
+#include "qom/object.h"
 
-typedef struct USBHIDState {
+struct USBHIDState {
     USBDevice dev;
     USBEndpoint *intr;
     HIDState hid;
     uint32_t usb_version;
     char *display;
     uint32_t head;
-} USBHIDState;
+};
+typedef struct USBHIDState USBHIDState;
 
 #define TYPE_USB_HID "usb-hid"
-#define USB_HID(obj) OBJECT_CHECK(USBHIDState, (obj), TYPE_USB_HID)
+DECLARE_INSTANCE_CHECKER(USBHIDState, USB_HID,
+                         TYPE_USB_HID)
 
 enum {
     STR_MANUFACTURER = 1,
diff --git a/hw/usb/dev-hub.c b/hw/usb/dev-hub.c
index 5f19dd9fb5..7a182f9bec 100644
--- a/hw/usb/dev-hub.c
+++ b/hw/usb/dev-hub.c
@@ -32,6 +32,7 @@
 #include "desc.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define MAX_PORTS 8
 
@@ -41,17 +42,19 @@ typedef struct USBHubPort {
     uint16_t wPortChange;
 } USBHubPort;
 
-typedef struct USBHubState {
+struct USBHubState {
     USBDevice dev;
     USBEndpoint *intr;
     uint32_t num_ports;
     bool port_power;
     QEMUTimer *port_timer;
     USBHubPort ports[MAX_PORTS];
-} USBHubState;
+};
+typedef struct USBHubState USBHubState;
 
 #define TYPE_USB_HUB "usb-hub"
-#define USB_HUB(obj) OBJECT_CHECK(USBHubState, (obj), TYPE_USB_HUB)
+DECLARE_INSTANCE_CHECKER(USBHubState, USB_HUB,
+                         TYPE_USB_HUB)
 
 #define ClearHubFeature		(0x2000 | USB_REQ_CLEAR_FEATURE)
 #define ClearPortFeature	(0x2300 | USB_REQ_CLEAR_FEATURE)
diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c
index 15a2243101..c61c0e0878 100644
--- a/hw/usb/dev-mtp.c
+++ b/hw/usb/dev-mtp.c
@@ -28,6 +28,7 @@
 #include "migration/vmstate.h"
 #include "desc.h"
 #include "qemu/units.h"
+#include "qom/object.h"
 
 /* ----------------------------------------------------------------------- */
 
@@ -237,7 +238,8 @@ typedef struct {
 } QEMU_PACKED ObjectInfo;
 
 #define TYPE_USB_MTP "usb-mtp"
-#define USB_MTP(obj) OBJECT_CHECK(MTPState, (obj), TYPE_USB_MTP)
+DECLARE_INSTANCE_CHECKER(MTPState, USB_MTP,
+                         TYPE_USB_MTP)
 
 #define QEMU_STORAGE_ID 0x00010001
 
diff --git a/hw/usb/dev-network.c b/hw/usb/dev-network.c
index c69756709b..cd32f57685 100644
--- a/hw/usb/dev-network.c
+++ b/hw/usb/dev-network.c
@@ -37,6 +37,7 @@
 #include "qemu/iov.h"
 #include "qemu/module.h"
 #include "qemu/cutils.h"
+#include "qom/object.h"
 
 /*#define TRAFFIC_DEBUG*/
 /* Thanks to NetChip Technologies for donating this product ID.
@@ -629,7 +630,7 @@ struct rndis_response {
     uint8_t buf[];
 };
 
-typedef struct USBNetState {
+struct USBNetState {
     USBDevice dev;
 
     enum rndis_state rndis_state;
@@ -651,10 +652,12 @@ typedef struct USBNetState {
     NICState *nic;
     NICConf conf;
     QTAILQ_HEAD(, rndis_response) rndis_resp;
-} USBNetState;
+};
+typedef struct USBNetState USBNetState;
 
 #define TYPE_USB_NET "usb-net"
-#define USB_NET(obj) OBJECT_CHECK(USBNetState, (obj), TYPE_USB_NET)
+DECLARE_INSTANCE_CHECKER(USBNetState, USB_NET,
+                         TYPE_USB_NET)
 
 static int is_rndis(USBNetState *s)
 {
diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c
index 7e50e3ba47..1a038a222e 100644
--- a/hw/usb/dev-serial.c
+++ b/hw/usb/dev-serial.c
@@ -19,6 +19,7 @@
 #include "desc.h"
 #include "chardev/char-serial.h"
 #include "chardev/char-fe.h"
+#include "qom/object.h"
 
 //#define DEBUG_Serial
 
@@ -96,7 +97,7 @@ do { printf("usb-serial: " fmt , ## __VA_ARGS__); } while (0)
 #define FTDI_TEMT (1<<6)        // Transmitter Empty
 #define FTDI_FIFO (1<<7)        // Error in FIFO
 
-typedef struct {
+struct USBSerialState {
     USBDevice dev;
     USBEndpoint *intr;
     uint8_t recv_buf[RECV_BUF];
@@ -108,10 +109,12 @@ typedef struct {
     QEMUSerialSetParams params;
     int latency;        /* ms */
     CharBackend cs;
-} USBSerialState;
+};
+typedef struct USBSerialState USBSerialState;
 
 #define TYPE_USB_SERIAL "usb-serial-dev"
-#define USB_SERIAL_DEV(obj) OBJECT_CHECK(USBSerialState, (obj), TYPE_USB_SERIAL)
+DECLARE_INSTANCE_CHECKER(USBSerialState, USB_SERIAL,
+                         TYPE_USB_SERIAL)
 
 enum {
     STR_MANUFACTURER = 1,
@@ -514,7 +517,7 @@ static void usb_serial_event(void *opaque, QEMUChrEvent event)
 
 static void usb_serial_realize(USBDevice *dev, Error **errp)
 {
-    USBSerialState *s = USB_SERIAL_DEV(dev);
+    USBSerialState *s = USB_SERIAL(dev);
     Error *local_err = NULL;
 
     usb_desc_create_serial(dev);
diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c
index fcfe216594..59b2248f34 100644
--- a/hw/usb/dev-smartcard-reader.c
+++ b/hw/usb/dev-smartcard-reader.c
@@ -46,6 +46,7 @@
 #include "desc.h"
 
 #include "ccid.h"
+#include "qom/object.h"
 
 #define DPRINTF(s, lvl, fmt, ...) \
 do { \
@@ -59,8 +60,10 @@ do { \
 #define D_MORE_INFO 3
 #define D_VERBOSE 4
 
-#define CCID_DEV_NAME "usb-ccid"
-#define USB_CCID_DEV(obj) OBJECT_CHECK(USBCCIDState, (obj), CCID_DEV_NAME)
+#define TYPE_USB_CCID_DEV "usb-ccid"
+typedef struct USBCCIDState USBCCIDState;
+DECLARE_INSTANCE_CHECKER(USBCCIDState, USB_CCID_DEV,
+                         TYPE_USB_CCID_DEV)
 /*
  * The two options for variable sized buffers:
  * make them constant size, for large enough constant,
@@ -274,14 +277,15 @@ typedef struct BulkIn {
     uint32_t pos;
 } BulkIn;
 
-typedef struct CCIDBus {
+struct CCIDBus {
     BusState qbus;
-} CCIDBus;
+};
+typedef struct CCIDBus CCIDBus;
 
 /*
  * powered - defaults to true, changed by PowerOn/PowerOff messages
  */
-typedef struct USBCCIDState {
+struct USBCCIDState {
     USBDevice dev;
     USBEndpoint *intr;
     USBEndpoint *bulk;
@@ -309,7 +313,7 @@ typedef struct USBCCIDState {
     uint8_t  powered;
     uint8_t  notify_slot_change;
     uint8_t  debug;
-} USBCCIDState;
+};
 
 /*
  * CCID Spec chapter 4: CCID uses a standard device descriptor per Chapter 9,
@@ -1173,7 +1177,8 @@ static Property ccid_props[] = {
 };
 
 #define TYPE_CCID_BUS "ccid-bus"
-#define CCID_BUS(obj) OBJECT_CHECK(CCIDBus, (obj), TYPE_CCID_BUS)
+DECLARE_INSTANCE_CHECKER(CCIDBus, CCID_BUS,
+                         TYPE_CCID_BUS)
 
 static const TypeInfo ccid_bus_info = {
     .name = TYPE_CCID_BUS,
@@ -1457,7 +1462,7 @@ static void ccid_class_initfn(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo ccid_info = {
-    .name          = CCID_DEV_NAME,
+    .name          = TYPE_USB_CCID_DEV,
     .parent        = TYPE_USB_DEVICE,
     .instance_size = sizeof(USBCCIDState),
     .class_init    = ccid_class_initfn,
@@ -1490,7 +1495,7 @@ static void ccid_register_types(void)
     type_register_static(&ccid_bus_info);
     type_register_static(&ccid_card_type_info);
     type_register_static(&ccid_info);
-    usb_legacy_register(CCID_DEV_NAME, "ccid", NULL);
+    usb_legacy_register(TYPE_USB_CCID_DEV, "ccid", NULL);
 }
 
 type_init(ccid_register_types)
diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c
index 405a4ccfe7..648340323f 100644
--- a/hw/usb/dev-storage.c
+++ b/hw/usb/dev-storage.c
@@ -22,6 +22,7 @@
 #include "sysemu/block-backend.h"
 #include "qapi/visitor.h"
 #include "qemu/cutils.h"
+#include "qom/object.h"
 
 //#define DEBUG_MSD
 
@@ -50,7 +51,7 @@ struct usb_msd_csw {
     uint8_t status;
 };
 
-typedef struct {
+struct MSDState {
     USBDevice dev;
     enum USBMSDMode mode;
     uint32_t scsi_off;
@@ -65,10 +66,12 @@ typedef struct {
     BlockConf conf;
     uint32_t removable;
     SCSIDevice *scsi_dev;
-} MSDState;
+};
+typedef struct MSDState MSDState;
 
 #define TYPE_USB_STORAGE "usb-storage-dev"
-#define USB_STORAGE_DEV(obj) OBJECT_CHECK(MSDState, (obj), TYPE_USB_STORAGE)
+DECLARE_INSTANCE_CHECKER(MSDState, USB_STORAGE_DEV,
+                         TYPE_USB_STORAGE)
 
 struct usb_msd_cbw {
     uint32_t sig;
diff --git a/hw/usb/dev-uas.c b/hw/usb/dev-uas.c
index a3a4d41c07..c36c8e7820 100644
--- a/hw/usb/dev-uas.c
+++ b/hw/usb/dev-uas.c
@@ -23,6 +23,7 @@
 #include "hw/qdev-properties.h"
 #include "hw/scsi/scsi.h"
 #include "scsi/constants.h"
+#include "qom/object.h"
 
 /* --------------------------------------------------------------------- */
 
@@ -132,7 +133,8 @@ struct UASDevice {
 };
 
 #define TYPE_USB_UAS "usb-uas"
-#define USB_UAS(obj) OBJECT_CHECK(UASDevice, (obj), TYPE_USB_UAS)
+DECLARE_INSTANCE_CHECKER(UASDevice, USB_UAS,
+                         TYPE_USB_UAS)
 
 struct UASRequest {
     uint16_t     tag;
diff --git a/hw/usb/dev-wacom.c b/hw/usb/dev-wacom.c
index 76fc5a5dab..85c4d827bf 100644
--- a/hw/usb/dev-wacom.c
+++ b/hw/usb/dev-wacom.c
@@ -33,12 +33,13 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "desc.h"
+#include "qom/object.h"
 
 /* Interface requests */
 #define WACOM_GET_REPORT	0x2101
 #define WACOM_SET_REPORT	0x2109
 
-typedef struct USBWacomState {
+struct USBWacomState {
     USBDevice dev;
     USBEndpoint *intr;
     QEMUPutMouseEntry *eh_entry;
@@ -51,10 +52,12 @@ typedef struct USBWacomState {
     } mode;
     uint8_t idle;
     int changed;
-} USBWacomState;
+};
+typedef struct USBWacomState USBWacomState;
 
 #define TYPE_USB_WACOM "usb-wacom-tablet"
-#define USB_WACOM(obj) OBJECT_CHECK(USBWacomState, (obj), TYPE_USB_WACOM)
+DECLARE_INSTANCE_CHECKER(USBWacomState, USB_WACOM,
+                         TYPE_USB_WACOM)
 
 enum {
     STR_MANUFACTURER = 1,
diff --git a/hw/usb/hcd-dwc2.h b/hw/usb/hcd-dwc2.h
index 54111d835e..919e3e43b1 100644
--- a/hw/usb/hcd-dwc2.h
+++ b/hw/usb/hcd-dwc2.h
@@ -24,6 +24,7 @@
 #include "hw/sysbus.h"
 #include "hw/usb.h"
 #include "sysemu/dma.h"
+#include "qom/object.h"
 
 #define DWC2_MMIO_SIZE      0x11000
 
@@ -180,11 +181,7 @@ struct DWC2Class {
 };
 
 #define TYPE_DWC2_USB   "dwc2-usb"
-#define DWC2_USB(obj) \
-    OBJECT_CHECK(DWC2State, (obj), TYPE_DWC2_USB)
-#define DWC2_USB_CLASS(klass) \
-    OBJECT_CLASS_CHECK(DWC2Class, (klass), TYPE_DWC2_USB)
-#define DWC2_USB_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(DWC2Class, (obj), TYPE_DWC2_USB)
+DECLARE_OBJ_CHECKERS(DWC2State, DWC2Class,
+                     DWC2_USB, TYPE_DWC2_USB)
 
 #endif
diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h
index 57b38cfc05..1301ce0be7 100644
--- a/hw/usb/hcd-ehci.h
+++ b/hw/usb/hcd-ehci.h
@@ -23,6 +23,7 @@
 #include "sysemu/dma.h"
 #include "hw/pci/pci.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
 #ifndef EHCI_DEBUG
 #define EHCI_DEBUG   0
@@ -328,15 +329,17 @@ void usb_ehci_unrealize(EHCIState *s, DeviceState *dev);
 void ehci_reset(void *opaque);
 
 #define TYPE_PCI_EHCI "pci-ehci-usb"
-#define PCI_EHCI(obj) OBJECT_CHECK(EHCIPCIState, (obj), TYPE_PCI_EHCI)
+typedef struct EHCIPCIState EHCIPCIState;
+DECLARE_INSTANCE_CHECKER(EHCIPCIState, PCI_EHCI,
+                         TYPE_PCI_EHCI)
 
-typedef struct EHCIPCIState {
+struct EHCIPCIState {
     /*< private >*/
     PCIDevice pcidev;
     /*< public >*/
 
     EHCIState ehci;
-} EHCIPCIState;
+};
 
 
 #define TYPE_SYS_BUS_EHCI "sysbus-ehci-usb"
@@ -347,22 +350,20 @@ typedef struct EHCIPCIState {
 #define TYPE_PPC4xx_EHCI "ppc4xx-ehci-usb"
 #define TYPE_FUSBH200_EHCI "fusbh200-ehci-usb"
 
-#define SYS_BUS_EHCI(obj) \
-    OBJECT_CHECK(EHCISysBusState, (obj), TYPE_SYS_BUS_EHCI)
-#define SYS_BUS_EHCI_CLASS(class) \
-    OBJECT_CLASS_CHECK(SysBusEHCIClass, (class), TYPE_SYS_BUS_EHCI)
-#define SYS_BUS_EHCI_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(SysBusEHCIClass, (obj), TYPE_SYS_BUS_EHCI)
+typedef struct EHCISysBusState EHCISysBusState;
+typedef struct SysBusEHCIClass SysBusEHCIClass;
+DECLARE_OBJ_CHECKERS(EHCISysBusState, SysBusEHCIClass,
+                     SYS_BUS_EHCI, TYPE_SYS_BUS_EHCI)
 
-typedef struct EHCISysBusState {
+struct EHCISysBusState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
 
     EHCIState ehci;
-} EHCISysBusState;
+};
 
-typedef struct SysBusEHCIClass {
+struct SysBusEHCIClass {
     /*< private >*/
     SysBusDeviceClass parent_class;
     /*< public >*/
@@ -371,17 +372,18 @@ typedef struct SysBusEHCIClass {
     uint16_t opregbase;
     uint16_t portscbase;
     uint16_t portnr;
-} SysBusEHCIClass;
+};
 
-#define FUSBH200_EHCI(obj) \
-    OBJECT_CHECK(FUSBH200EHCIState, (obj), TYPE_FUSBH200_EHCI)
+typedef struct FUSBH200EHCIState FUSBH200EHCIState;
+DECLARE_INSTANCE_CHECKER(FUSBH200EHCIState, FUSBH200_EHCI,
+                         TYPE_FUSBH200_EHCI)
 
-typedef struct FUSBH200EHCIState {
+struct FUSBH200EHCIState {
     /*< private >*/
     EHCISysBusState parent_obj;
     /*< public >*/
 
     MemoryRegion mem_vendor;
-} FUSBH200EHCIState;
+};
 
 #endif
diff --git a/hw/usb/hcd-ohci-pci.c b/hw/usb/hcd-ohci-pci.c
index a7fb1666af..f8168a06a3 100644
--- a/hw/usb/hcd-ohci-pci.c
+++ b/hw/usb/hcd-ohci-pci.c
@@ -29,11 +29,14 @@
 #include "hw/qdev-properties.h"
 #include "trace.h"
 #include "hcd-ohci.h"
+#include "qom/object.h"
 
 #define TYPE_PCI_OHCI "pci-ohci"
-#define PCI_OHCI(obj) OBJECT_CHECK(OHCIPCIState, (obj), TYPE_PCI_OHCI)
+typedef struct OHCIPCIState OHCIPCIState;
+DECLARE_INSTANCE_CHECKER(OHCIPCIState, PCI_OHCI,
+                         TYPE_PCI_OHCI)
 
-typedef struct {
+struct OHCIPCIState {
     /*< private >*/
     PCIDevice parent_obj;
     /*< public >*/
@@ -42,7 +45,7 @@ typedef struct {
     char *masterbus;
     uint32_t num_ports;
     uint32_t firstport;
-} OHCIPCIState;
+};
 
 /**
  * A typical PCI OHCI will additionally set PERR in its configspace to
diff --git a/hw/usb/hcd-ohci.h b/hw/usb/hcd-ohci.h
index 5c8819aedf..6e28e97839 100644
--- a/hw/usb/hcd-ohci.h
+++ b/hw/usb/hcd-ohci.h
@@ -23,6 +23,7 @@
 
 #include "sysemu/dma.h"
 #include "hw/usb.h"
+#include "qom/object.h"
 
 /* Number of Downstream Ports on the root hub: */
 #define OHCI_MAX_PORTS 15
@@ -92,9 +93,11 @@ typedef struct OHCIState {
 } OHCIState;
 
 #define TYPE_SYSBUS_OHCI "sysbus-ohci"
-#define SYSBUS_OHCI(obj) OBJECT_CHECK(OHCISysBusState, (obj), TYPE_SYSBUS_OHCI)
+typedef struct OHCISysBusState OHCISysBusState;
+DECLARE_INSTANCE_CHECKER(OHCISysBusState, SYSBUS_OHCI,
+                         TYPE_SYSBUS_OHCI)
 
-typedef struct {
+struct OHCISysBusState {
     /*< private >*/
     SysBusDevice parent_obj;
     /*< public >*/
@@ -104,7 +107,7 @@ typedef struct {
     uint32_t num_ports;
     uint32_t firstport;
     dma_addr_t dma_offset;
-} OHCISysBusState;
+};
 
 extern const VMStateDescription vmstate_ohci_state;
 
diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c
index 37f7beb3fa..27ca237d71 100644
--- a/hw/usb/hcd-uhci.c
+++ b/hw/usb/hcd-uhci.c
@@ -39,6 +39,7 @@
 #include "trace.h"
 #include "qemu/main-loop.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 #define FRAME_TIMER_FREQ 1000
 
@@ -160,7 +161,8 @@ static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td);
 static void uhci_resume(void *opaque);
 
 #define TYPE_UHCI "pci-uhci-usb"
-#define UHCI(obj) OBJECT_CHECK(UHCIState, (obj), TYPE_UHCI)
+DECLARE_INSTANCE_CHECKER(UHCIState, UHCI,
+                         TYPE_UHCI)
 
 static inline int32_t uhci_queue_token(UHCI_TD *td)
 {
diff --git a/hw/usb/hcd-xhci.h b/hw/usb/hcd-xhci.h
index 946af51fc2..2110c0399e 100644
--- a/hw/usb/hcd-xhci.h
+++ b/hw/usb/hcd-xhci.h
@@ -21,13 +21,15 @@
 
 #ifndef HW_USB_HCD_XHCI_H
 #define HW_USB_HCD_XHCI_H
+#include "qom/object.h"
 
 #define TYPE_XHCI "base-xhci"
 #define TYPE_NEC_XHCI "nec-usb-xhci"
 #define TYPE_QEMU_XHCI "qemu-xhci"
 
-#define XHCI(obj) \
-    OBJECT_CHECK(XHCIState, (obj), TYPE_XHCI)
+typedef struct XHCIState XHCIState;
+DECLARE_INSTANCE_CHECKER(XHCIState, XHCI,
+                         TYPE_XHCI)
 
 #define MAXPORTS_2 15
 #define MAXPORTS_3 15
@@ -39,7 +41,6 @@
 /* Very pessimistic, let's hope it's enough for all cases */
 #define EV_QUEUE (((3 * 24) + 16) * MAXSLOTS)
 
-typedef struct XHCIState XHCIState;
 typedef struct XHCIStreamContext XHCIStreamContext;
 typedef struct XHCIEPContext XHCIEPContext;
 
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index 08604f787f..2ba1de68df 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -34,6 +34,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qom/object.h"
 #ifndef CONFIG_WIN32
 #include <poll.h>
 #endif
@@ -60,10 +61,10 @@
 /* ------------------------------------------------------------------------ */
 
 #define TYPE_USB_HOST_DEVICE "usb-host"
-#define USB_HOST_DEVICE(obj) \
-     OBJECT_CHECK(USBHostDevice, (obj), TYPE_USB_HOST_DEVICE)
-
 typedef struct USBHostDevice USBHostDevice;
+DECLARE_INSTANCE_CHECKER(USBHostDevice, USB_HOST_DEVICE,
+                         TYPE_USB_HOST_DEVICE)
+
 typedef struct USBHostRequest USBHostRequest;
 typedef struct USBHostIsoXfer USBHostIsoXfer;
 typedef struct USBHostIsoRing USBHostIsoRing;
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index 417a60a2e6..a079ecd50c 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -45,6 +45,7 @@
 #include "hw/usb.h"
 #include "migration/qemu-file-types.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 /* ERROR is defined below. Remove any previous definition. */
 #undef ERROR
@@ -144,7 +145,8 @@ struct USBRedirDevice {
 };
 
 #define TYPE_USB_REDIR "usb-redir"
-#define USB_REDIRECT(obj) OBJECT_CHECK(USBRedirDevice, (obj), TYPE_USB_REDIR)
+DECLARE_INSTANCE_CHECKER(USBRedirDevice, USB_REDIRECT,
+                         TYPE_USB_REDIR)
 
 static void usbredir_hello(void *priv, struct usb_redir_hello_header *h);
 static void usbredir_device_connect(void *priv,
diff --git a/hw/usb/tusb6010.c b/hw/usb/tusb6010.c
index 27eb28d3e4..dd20996d13 100644
--- a/hw/usb/tusb6010.c
+++ b/hw/usb/tusb6010.c
@@ -28,11 +28,14 @@
 #include "hw/hw.h"
 #include "hw/irq.h"
 #include "hw/sysbus.h"
+#include "qom/object.h"
 
 #define TYPE_TUSB6010 "tusb6010"
-#define TUSB(obj) OBJECT_CHECK(TUSBState, (obj), TYPE_TUSB6010)
+typedef struct TUSBState TUSBState;
+DECLARE_INSTANCE_CHECKER(TUSBState, TUSB6010,
+                         TYPE_TUSB6010)
 
-typedef struct TUSBState {
+struct TUSBState {
     SysBusDevice parent_obj;
 
     MemoryRegion iomem[2];
@@ -68,7 +71,7 @@ typedef struct TUSBState {
     uint32_t pullup[2];
     uint32_t control_config;
     uint32_t otg_timer_val;
-} TUSBState;
+};
 
 #define TUSB_DEVCLOCK			60000000	/* 60 MHz */
 
@@ -776,7 +779,7 @@ static void tusb6010_irq(void *opaque, int source, int level)
 
 static void tusb6010_reset(DeviceState *dev)
 {
-    TUSBState *s = TUSB(dev);
+    TUSBState *s = TUSB6010(dev);
     int i;
 
     s->test_reset = TUSB_PROD_TEST_RESET_VAL;
@@ -812,7 +815,7 @@ static void tusb6010_reset(DeviceState *dev)
 
 static void tusb6010_realize(DeviceState *dev, Error **errp)
 {
-    TUSBState *s = TUSB(dev);
+    TUSBState *s = TUSB6010(dev);
     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 
     s->otg_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tusb_otg_tick, s);
diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c
index cec6fe1599..582c091a24 100644
--- a/hw/vfio/ap.c
+++ b/hw/vfio/ap.c
@@ -28,16 +28,18 @@
 #include "hw/qdev-properties.h"
 #include "hw/s390x/ap-bridge.h"
 #include "exec/address-spaces.h"
+#include "qom/object.h"
 
-#define VFIO_AP_DEVICE_TYPE      "vfio-ap"
+#define TYPE_VFIO_AP_DEVICE      "vfio-ap"
 
-typedef struct VFIOAPDevice {
+struct VFIOAPDevice {
     APDevice apdev;
     VFIODevice vdev;
-} VFIOAPDevice;
+};
+typedef struct VFIOAPDevice VFIOAPDevice;
 
-#define VFIO_AP_DEVICE(obj) \
-        OBJECT_CHECK(VFIOAPDevice, (obj), VFIO_AP_DEVICE_TYPE)
+DECLARE_INSTANCE_CHECKER(VFIOAPDevice, VFIO_AP_DEVICE,
+                         TYPE_VFIO_AP_DEVICE)
 
 static void vfio_ap_compute_needs_reset(VFIODevice *vdev)
 {
@@ -70,7 +72,7 @@ static VFIOGroup *vfio_ap_get_group(VFIOAPDevice *vapdev, Error **errp)
 
     if (!group_path) {
         error_setg(errp, "%s: no iommu_group found for %s: %s",
-                   VFIO_AP_DEVICE_TYPE, vapdev->vdev.sysfsdev, gerror->message);
+                   TYPE_VFIO_AP_DEVICE, vapdev->vdev.sysfsdev, gerror->message);
         g_error_free(gerror);
         return NULL;
     }
@@ -174,8 +176,8 @@ static void vfio_ap_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo vfio_ap_info = {
-    .name = VFIO_AP_DEVICE_TYPE,
-    .parent = AP_DEVICE_TYPE,
+    .name = TYPE_VFIO_AP_DEVICE,
+    .parent = TYPE_AP_DEVICE,
     .instance_size = sizeof(VFIOAPDevice),
     .class_init = vfio_ap_class_init,
 };
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 3611dcd38b..0d83eb0e47 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -230,7 +230,7 @@ static void vfio_intx_update(VFIOPCIDevice *vdev, PCIINTxRoute *route)
 
 static void vfio_intx_routing_notifier(PCIDevice *pdev)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(pdev);
+    VFIOPCIDevice *vdev = VFIO_PCI(pdev);
     PCIINTxRoute route;
 
     if (vdev->interrupt != VFIO_INT_INTx) {
@@ -456,7 +456,7 @@ static void vfio_update_kvm_msi_virq(VFIOMSIVector *vector, MSIMessage msg,
 static int vfio_msix_vector_do_use(PCIDevice *pdev, unsigned int nr,
                                    MSIMessage *msg, IOHandler *handler)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(pdev);
+    VFIOPCIDevice *vdev = VFIO_PCI(pdev);
     VFIOMSIVector *vector;
     int ret;
 
@@ -541,7 +541,7 @@ static int vfio_msix_vector_use(PCIDevice *pdev,
 
 static void vfio_msix_vector_release(PCIDevice *pdev, unsigned int nr)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(pdev);
+    VFIOPCIDevice *vdev = VFIO_PCI(pdev);
     VFIOMSIVector *vector = &vdev->msi_vectors[nr];
 
     trace_vfio_msix_vector_release(vdev->vbasedev.name, nr);
@@ -1048,7 +1048,7 @@ static const MemoryRegionOps vfio_vga_ops = {
  */
 static void vfio_sub_page_bar_update_mapping(PCIDevice *pdev, int bar)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(pdev);
+    VFIOPCIDevice *vdev = VFIO_PCI(pdev);
     VFIORegion *region = &vdev->bars[bar].region;
     MemoryRegion *mmap_mr, *region_mr, *base_mr;
     PCIIORegion *r;
@@ -1094,7 +1094,7 @@ static void vfio_sub_page_bar_update_mapping(PCIDevice *pdev, int bar)
  */
 uint32_t vfio_pci_read_config(PCIDevice *pdev, uint32_t addr, int len)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(pdev);
+    VFIOPCIDevice *vdev = VFIO_PCI(pdev);
     uint32_t emu_bits = 0, emu_val = 0, phys_val = 0, val;
 
     memcpy(&emu_bits, vdev->emulated_config_bits + addr, len);
@@ -1127,7 +1127,7 @@ uint32_t vfio_pci_read_config(PCIDevice *pdev, uint32_t addr, int len)
 void vfio_pci_write_config(PCIDevice *pdev,
                            uint32_t addr, uint32_t val, int len)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(pdev);
+    VFIOPCIDevice *vdev = VFIO_PCI(pdev);
     uint32_t val_le = cpu_to_le32(val);
 
     trace_vfio_pci_write_config(vdev->vbasedev.name, addr, val, len);
@@ -2701,7 +2701,7 @@ static void vfio_unregister_req_notifier(VFIOPCIDevice *vdev)
 
 static void vfio_realize(PCIDevice *pdev, Error **errp)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(pdev);
+    VFIOPCIDevice *vdev = VFIO_PCI(pdev);
     VFIODevice *vbasedev_iter;
     VFIOGroup *group;
     char *tmp, *subsys, group_path[PATH_MAX], *group_name;
@@ -3033,7 +3033,7 @@ error:
 
 static void vfio_instance_finalize(Object *obj)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(obj);
+    VFIOPCIDevice *vdev = VFIO_PCI(obj);
     VFIOGroup *group = vdev->vbasedev.group;
 
     vfio_display_finalize(vdev);
@@ -3057,7 +3057,7 @@ static void vfio_instance_finalize(Object *obj)
 
 static void vfio_exitfn(PCIDevice *pdev)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(pdev);
+    VFIOPCIDevice *vdev = VFIO_PCI(pdev);
 
     vfio_unregister_req_notifier(vdev);
     vfio_unregister_err_notifier(vdev);
@@ -3075,7 +3075,7 @@ static void vfio_exitfn(PCIDevice *pdev)
 
 static void vfio_pci_reset(DeviceState *dev)
 {
-    VFIOPCIDevice *vdev = PCI_VFIO(dev);
+    VFIOPCIDevice *vdev = VFIO_PCI(dev);
 
     trace_vfio_pci_reset(vdev->vbasedev.name);
 
@@ -3115,7 +3115,7 @@ post_reset:
 static void vfio_instance_init(Object *obj)
 {
     PCIDevice *pci_dev = PCI_DEVICE(obj);
-    VFIOPCIDevice *vdev = PCI_VFIO(obj);
+    VFIOPCIDevice *vdev = VFIO_PCI(obj);
 
     device_add_bootindex_property(obj, &vdev->bootindex,
                                   "bootindex", NULL,
diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index 3c0dca024b..5e53d5b863 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -18,6 +18,7 @@
 #include "qemu/event_notifier.h"
 #include "qemu/queue.h"
 #include "qemu/timer.h"
+#include "qom/object.h"
 
 #define PCI_ANY_ID (~0)
 
@@ -114,9 +115,11 @@ typedef struct VFIOMSIXInfo {
 } VFIOMSIXInfo;
 
 #define TYPE_VFIO_PCI "vfio-pci"
-#define PCI_VFIO(obj)    OBJECT_CHECK(VFIOPCIDevice, obj, TYPE_VFIO_PCI)
+typedef struct VFIOPCIDevice VFIOPCIDevice;
+DECLARE_INSTANCE_CHECKER(VFIOPCIDevice, VFIO_PCI,
+                         TYPE_VFIO_PCI)
 
-typedef struct VFIOPCIDevice {
+struct VFIOPCIDevice {
     PCIDevice pdev;
     VFIODevice vbasedev;
     VFIOINTx intx;
@@ -173,7 +176,7 @@ typedef struct VFIOPCIDevice {
     VFIODisplay *dpy;
     Error *migration_blocker;
     Notifier irqchip_change_notifier;
-} VFIOPCIDevice;
+};
 
 /* Use uin32_t for vendor & device so PCI_ANY_ID expands and cannot match hw */
 static inline bool vfio_pci_is(VFIOPCIDevice *vdev, uint32_t vendor, uint32_t device)
diff --git a/hw/virtio/vhost-scsi-pci.c b/hw/virtio/vhost-scsi-pci.c
index a6bb0dc60d..cb71a294fa 100644
--- a/hw/virtio/vhost-scsi-pci.c
+++ b/hw/virtio/vhost-scsi-pci.c
@@ -22,6 +22,7 @@
 #include "qapi/error.h"
 #include "qemu/module.h"
 #include "virtio-pci.h"
+#include "qom/object.h"
 
 typedef struct VHostSCSIPCI VHostSCSIPCI;
 
@@ -29,8 +30,8 @@ typedef struct VHostSCSIPCI VHostSCSIPCI;
  * vhost-scsi-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci-base"
-#define VHOST_SCSI_PCI(obj) \
-        OBJECT_CHECK(VHostSCSIPCI, (obj), TYPE_VHOST_SCSI_PCI)
+DECLARE_INSTANCE_CHECKER(VHostSCSIPCI, VHOST_SCSI_PCI,
+                         TYPE_VHOST_SCSI_PCI)
 
 struct VHostSCSIPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/vhost-user-blk-pci.c b/hw/virtio/vhost-user-blk-pci.c
index a62a71e067..33b404d8a2 100644
--- a/hw/virtio/vhost-user-blk-pci.c
+++ b/hw/virtio/vhost-user-blk-pci.c
@@ -27,6 +27,7 @@
 #include "qemu/error-report.h"
 #include "qemu/module.h"
 #include "virtio-pci.h"
+#include "qom/object.h"
 
 typedef struct VHostUserBlkPCI VHostUserBlkPCI;
 
@@ -34,8 +35,8 @@ typedef struct VHostUserBlkPCI VHostUserBlkPCI;
  * vhost-user-blk-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VHOST_USER_BLK_PCI "vhost-user-blk-pci-base"
-#define VHOST_USER_BLK_PCI(obj) \
-        OBJECT_CHECK(VHostUserBlkPCI, (obj), TYPE_VHOST_USER_BLK_PCI)
+DECLARE_INSTANCE_CHECKER(VHostUserBlkPCI, VHOST_USER_BLK_PCI,
+                         TYPE_VHOST_USER_BLK_PCI)
 
 struct VHostUserBlkPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/vhost-user-fs-pci.c b/hw/virtio/vhost-user-fs-pci.c
index e11c889d82..8bb389bd28 100644
--- a/hw/virtio/vhost-user-fs-pci.c
+++ b/hw/virtio/vhost-user-fs-pci.c
@@ -15,6 +15,7 @@
 #include "hw/qdev-properties.h"
 #include "hw/virtio/vhost-user-fs.h"
 #include "virtio-pci.h"
+#include "qom/object.h"
 
 struct VHostUserFSPCI {
     VirtIOPCIProxy parent_obj;
@@ -25,8 +26,8 @@ typedef struct VHostUserFSPCI VHostUserFSPCI;
 
 #define TYPE_VHOST_USER_FS_PCI "vhost-user-fs-pci-base"
 
-#define VHOST_USER_FS_PCI(obj) \
-        OBJECT_CHECK(VHostUserFSPCI, (obj), TYPE_VHOST_USER_FS_PCI)
+DECLARE_INSTANCE_CHECKER(VHostUserFSPCI, VHOST_USER_FS_PCI,
+                         TYPE_VHOST_USER_FS_PCI)
 
 static Property vhost_user_fs_pci_properties[] = {
     DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
diff --git a/hw/virtio/vhost-user-input-pci.c b/hw/virtio/vhost-user-input-pci.c
index 0a50015599..c9d3e9113a 100644
--- a/hw/virtio/vhost-user-input-pci.c
+++ b/hw/virtio/vhost-user-input-pci.c
@@ -10,13 +10,14 @@
 #include "qapi/error.h"
 #include "qemu/error-report.h"
 #include "virtio-pci.h"
+#include "qom/object.h"
 
 typedef struct VHostUserInputPCI VHostUserInputPCI;
 
 #define TYPE_VHOST_USER_INPUT_PCI "vhost-user-input-pci"
 
-#define VHOST_USER_INPUT_PCI(obj) \
-    OBJECT_CHECK(VHostUserInputPCI, (obj), TYPE_VHOST_USER_INPUT_PCI)
+DECLARE_INSTANCE_CHECKER(VHostUserInputPCI, VHOST_USER_INPUT_PCI,
+                         TYPE_VHOST_USER_INPUT_PCI)
 
 struct VHostUserInputPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/vhost-user-scsi-pci.c b/hw/virtio/vhost-user-scsi-pci.c
index 25e97ca54e..d5343412a1 100644
--- a/hw/virtio/vhost-user-scsi-pci.c
+++ b/hw/virtio/vhost-user-scsi-pci.c
@@ -31,12 +31,13 @@
 #include "hw/loader.h"
 #include "sysemu/kvm.h"
 #include "virtio-pci.h"
+#include "qom/object.h"
 
 typedef struct VHostUserSCSIPCI VHostUserSCSIPCI;
 
 #define TYPE_VHOST_USER_SCSI_PCI "vhost-user-scsi-pci-base"
-#define VHOST_USER_SCSI_PCI(obj) \
-        OBJECT_CHECK(VHostUserSCSIPCI, (obj), TYPE_VHOST_USER_SCSI_PCI)
+DECLARE_INSTANCE_CHECKER(VHostUserSCSIPCI, VHOST_USER_SCSI_PCI,
+                         TYPE_VHOST_USER_SCSI_PCI)
 
 struct VHostUserSCSIPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/vhost-user-vsock-pci.c b/hw/virtio/vhost-user-vsock-pci.c
index f4cf95873d..763f89984e 100644
--- a/hw/virtio/vhost-user-vsock-pci.c
+++ b/hw/virtio/vhost-user-vsock-pci.c
@@ -13,6 +13,7 @@
 #include "virtio-pci.h"
 #include "hw/qdev-properties.h"
 #include "hw/virtio/vhost-user-vsock.h"
+#include "qom/object.h"
 
 typedef struct VHostUserVSockPCI VHostUserVSockPCI;
 
@@ -20,8 +21,8 @@ typedef struct VHostUserVSockPCI VHostUserVSockPCI;
  * vhost-user-vsock-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VHOST_USER_VSOCK_PCI "vhost-user-vsock-pci-base"
-#define VHOST_USER_VSOCK_PCI(obj) \
-        OBJECT_CHECK(VHostUserVSockPCI, (obj), TYPE_VHOST_USER_VSOCK_PCI)
+DECLARE_INSTANCE_CHECKER(VHostUserVSockPCI, VHOST_USER_VSOCK_PCI,
+                         TYPE_VHOST_USER_VSOCK_PCI)
 
 struct VHostUserVSockPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/vhost-vsock-pci.c b/hw/virtio/vhost-vsock-pci.c
index a815278e69..e56067b427 100644
--- a/hw/virtio/vhost-vsock-pci.c
+++ b/hw/virtio/vhost-vsock-pci.c
@@ -17,6 +17,7 @@
 #include "hw/qdev-properties.h"
 #include "hw/virtio/vhost-vsock.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct VHostVSockPCI VHostVSockPCI;
 
@@ -24,8 +25,8 @@ typedef struct VHostVSockPCI VHostVSockPCI;
  * vhost-vsock-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VHOST_VSOCK_PCI "vhost-vsock-pci-base"
-#define VHOST_VSOCK_PCI(obj) \
-        OBJECT_CHECK(VHostVSockPCI, (obj), TYPE_VHOST_VSOCK_PCI)
+DECLARE_INSTANCE_CHECKER(VHostVSockPCI, VHOST_VSOCK_PCI,
+                         TYPE_VHOST_VSOCK_PCI)
 
 struct VHostVSockPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-9p-pci.c b/hw/virtio/virtio-9p-pci.c
index cbcb062faa..e07adcd9ea 100644
--- a/hw/virtio/virtio-9p-pci.c
+++ b/hw/virtio/virtio-9p-pci.c
@@ -19,19 +19,21 @@
 #include "hw/9pfs/virtio-9p.h"
 #include "hw/qdev-properties.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 /*
  * virtio-9p-pci: This extends VirtioPCIProxy.
  */
 
 #define TYPE_VIRTIO_9P_PCI "virtio-9p-pci-base"
-#define VIRTIO_9P_PCI(obj) \
-        OBJECT_CHECK(V9fsPCIState, (obj), TYPE_VIRTIO_9P_PCI)
+typedef struct V9fsPCIState V9fsPCIState;
+DECLARE_INSTANCE_CHECKER(V9fsPCIState, VIRTIO_9P_PCI,
+                         TYPE_VIRTIO_9P_PCI)
 
-typedef struct V9fsPCIState {
+struct V9fsPCIState {
     VirtIOPCIProxy parent_obj;
     V9fsVirtioState vdev;
-} V9fsPCIState;
+};
 
 static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
 {
diff --git a/hw/virtio/virtio-balloon-pci.c b/hw/virtio/virtio-balloon-pci.c
index 5adc4e5819..a2c5cc7207 100644
--- a/hw/virtio/virtio-balloon-pci.c
+++ b/hw/virtio/virtio-balloon-pci.c
@@ -19,6 +19,7 @@
 #include "hw/virtio/virtio-balloon.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct VirtIOBalloonPCI VirtIOBalloonPCI;
 
@@ -26,8 +27,8 @@ typedef struct VirtIOBalloonPCI VirtIOBalloonPCI;
  * virtio-balloon-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_BALLOON_PCI "virtio-balloon-pci-base"
-#define VIRTIO_BALLOON_PCI(obj) \
-        OBJECT_CHECK(VirtIOBalloonPCI, (obj), TYPE_VIRTIO_BALLOON_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOBalloonPCI, VIRTIO_BALLOON_PCI,
+                         TYPE_VIRTIO_BALLOON_PCI)
 
 struct VirtIOBalloonPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-blk-pci.c b/hw/virtio/virtio-blk-pci.c
index 37c6e0aeb4..9d5795810c 100644
--- a/hw/virtio/virtio-blk-pci.c
+++ b/hw/virtio/virtio-blk-pci.c
@@ -22,6 +22,7 @@
 #include "virtio-pci.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct VirtIOBlkPCI VirtIOBlkPCI;
 
@@ -29,8 +30,8 @@ typedef struct VirtIOBlkPCI VirtIOBlkPCI;
  * virtio-blk-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci-base"
-#define VIRTIO_BLK_PCI(obj) \
-        OBJECT_CHECK(VirtIOBlkPCI, (obj), TYPE_VIRTIO_BLK_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOBlkPCI, VIRTIO_BLK_PCI,
+                         TYPE_VIRTIO_BLK_PCI)
 
 struct VirtIOBlkPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-crypto-pci.c b/hw/virtio/virtio-crypto-pci.c
index 198f86e08c..0783dc2f7e 100644
--- a/hw/virtio/virtio-crypto-pci.c
+++ b/hw/virtio/virtio-crypto-pci.c
@@ -21,6 +21,7 @@
 #include "hw/virtio/virtio-crypto.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct VirtIOCryptoPCI VirtIOCryptoPCI;
 
@@ -28,8 +29,8 @@ typedef struct VirtIOCryptoPCI VirtIOCryptoPCI;
  * virtio-crypto-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_CRYPTO_PCI "virtio-crypto-pci"
-#define VIRTIO_CRYPTO_PCI(obj) \
-        OBJECT_CHECK(VirtIOCryptoPCI, (obj), TYPE_VIRTIO_CRYPTO_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOCryptoPCI, VIRTIO_CRYPTO_PCI,
+                         TYPE_VIRTIO_CRYPTO_PCI)
 
 struct VirtIOCryptoPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-input-host-pci.c b/hw/virtio/virtio-input-host-pci.c
index a82eb5d914..0ac360de4f 100644
--- a/hw/virtio/virtio-input-host-pci.c
+++ b/hw/virtio/virtio-input-host-pci.c
@@ -11,12 +11,13 @@
 #include "virtio-pci.h"
 #include "hw/virtio/virtio-input.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct VirtIOInputHostPCI VirtIOInputHostPCI;
 
 #define TYPE_VIRTIO_INPUT_HOST_PCI "virtio-input-host-pci"
-#define VIRTIO_INPUT_HOST_PCI(obj) \
-        OBJECT_CHECK(VirtIOInputHostPCI, (obj), TYPE_VIRTIO_INPUT_HOST_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOInputHostPCI, VIRTIO_INPUT_HOST_PCI,
+                         TYPE_VIRTIO_INPUT_HOST_PCI)
 
 struct VirtIOInputHostPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-input-pci.c b/hw/virtio/virtio-input-pci.c
index 74651a42ea..85acd3d2eb 100644
--- a/hw/virtio/virtio-input-pci.c
+++ b/hw/virtio/virtio-input-pci.c
@@ -12,6 +12,7 @@
 #include "hw/qdev-properties.h"
 #include "hw/virtio/virtio-input.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct VirtIOInputPCI VirtIOInputPCI;
 typedef struct VirtIOInputHIDPCI VirtIOInputHIDPCI;
@@ -19,8 +20,8 @@ typedef struct VirtIOInputHIDPCI VirtIOInputHIDPCI;
 /*
  * virtio-input-pci: This extends VirtioPCIProxy.
  */
-#define VIRTIO_INPUT_PCI(obj) \
-        OBJECT_CHECK(VirtIOInputPCI, (obj), TYPE_VIRTIO_INPUT_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOInputPCI, VIRTIO_INPUT_PCI,
+                         TYPE_VIRTIO_INPUT_PCI)
 
 struct VirtIOInputPCI {
     VirtIOPCIProxy parent_obj;
@@ -31,8 +32,8 @@ struct VirtIOInputPCI {
 #define TYPE_VIRTIO_KEYBOARD_PCI  "virtio-keyboard-pci"
 #define TYPE_VIRTIO_MOUSE_PCI     "virtio-mouse-pci"
 #define TYPE_VIRTIO_TABLET_PCI    "virtio-tablet-pci"
-#define VIRTIO_INPUT_HID_PCI(obj) \
-        OBJECT_CHECK(VirtIOInputHIDPCI, (obj), TYPE_VIRTIO_INPUT_HID_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOInputHIDPCI, VIRTIO_INPUT_HID_PCI,
+                         TYPE_VIRTIO_INPUT_HID_PCI)
 
 struct VirtIOInputHIDPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-iommu-pci.c b/hw/virtio/virtio-iommu-pci.c
index ba62d60a0a..76540e57b1 100644
--- a/hw/virtio/virtio-iommu-pci.c
+++ b/hw/virtio/virtio-iommu-pci.c
@@ -16,6 +16,7 @@
 #include "hw/qdev-properties.h"
 #include "qapi/error.h"
 #include "hw/boards.h"
+#include "qom/object.h"
 
 typedef struct VirtIOIOMMUPCI VirtIOIOMMUPCI;
 
@@ -23,8 +24,8 @@ typedef struct VirtIOIOMMUPCI VirtIOIOMMUPCI;
  * virtio-iommu-pci: This extends VirtioPCIProxy.
  *
  */
-#define VIRTIO_IOMMU_PCI(obj) \
-        OBJECT_CHECK(VirtIOIOMMUPCI, (obj), TYPE_VIRTIO_IOMMU_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOIOMMUPCI, VIRTIO_IOMMU_PCI,
+                         TYPE_VIRTIO_IOMMU_PCI)
 
 struct VirtIOIOMMUPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-mem-pci.h b/hw/virtio/virtio-mem-pci.h
index b51a28b275..e636e1a48d 100644
--- a/hw/virtio/virtio-mem-pci.h
+++ b/hw/virtio/virtio-mem-pci.h
@@ -15,6 +15,7 @@
 
 #include "hw/virtio/virtio-pci.h"
 #include "hw/virtio/virtio-mem.h"
+#include "qom/object.h"
 
 typedef struct VirtIOMEMPCI VirtIOMEMPCI;
 
@@ -22,8 +23,8 @@ typedef struct VirtIOMEMPCI VirtIOMEMPCI;
  * virtio-mem-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_MEM_PCI "virtio-mem-pci-base"
-#define VIRTIO_MEM_PCI(obj) \
-        OBJECT_CHECK(VirtIOMEMPCI, (obj), TYPE_VIRTIO_MEM_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOMEMPCI, VIRTIO_MEM_PCI,
+                         TYPE_VIRTIO_MEM_PCI)
 
 struct VirtIOMEMPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-net-pci.c b/hw/virtio/virtio-net-pci.c
index 489b5dbad6..292d13d278 100644
--- a/hw/virtio/virtio-net-pci.c
+++ b/hw/virtio/virtio-net-pci.c
@@ -22,6 +22,7 @@
 #include "virtio-pci.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct VirtIONetPCI VirtIONetPCI;
 
@@ -29,8 +30,8 @@ typedef struct VirtIONetPCI VirtIONetPCI;
  * virtio-net-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_NET_PCI "virtio-net-pci-base"
-#define VIRTIO_NET_PCI(obj) \
-        OBJECT_CHECK(VirtIONetPCI, (obj), TYPE_VIRTIO_NET_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIONetPCI, VIRTIO_NET_PCI,
+                         TYPE_VIRTIO_NET_PCI)
 
 struct VirtIONetPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
index 91096f0291..47b6bb4e26 100644
--- a/hw/virtio/virtio-pci.h
+++ b/hw/virtio/virtio-pci.h
@@ -17,6 +17,7 @@
 
 #include "hw/pci/msi.h"
 #include "hw/virtio/virtio-bus.h"
+#include "qom/object.h"
 
 typedef struct VirtIOPCIProxy VirtIOPCIProxy;
 
@@ -26,12 +27,8 @@ typedef struct VirtioBusState VirtioPCIBusState;
 typedef struct VirtioBusClass VirtioPCIBusClass;
 
 #define TYPE_VIRTIO_PCI_BUS "virtio-pci-bus"
-#define VIRTIO_PCI_BUS(obj) \
-        OBJECT_CHECK(VirtioPCIBusState, (obj), TYPE_VIRTIO_PCI_BUS)
-#define VIRTIO_PCI_BUS_GET_CLASS(obj) \
-        OBJECT_GET_CLASS(VirtioPCIBusClass, obj, TYPE_VIRTIO_PCI_BUS)
-#define VIRTIO_PCI_BUS_CLASS(klass) \
-        OBJECT_CLASS_CHECK(VirtioPCIBusClass, klass, TYPE_VIRTIO_PCI_BUS)
+DECLARE_OBJ_CHECKERS(VirtioPCIBusState, VirtioPCIBusClass,
+                     VIRTIO_PCI_BUS, TYPE_VIRTIO_PCI_BUS)
 
 enum {
     VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT,
@@ -94,18 +91,15 @@ typedef struct {
  * virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
  */
 #define TYPE_VIRTIO_PCI "virtio-pci"
-#define VIRTIO_PCI_GET_CLASS(obj) \
-        OBJECT_GET_CLASS(VirtioPCIClass, obj, TYPE_VIRTIO_PCI)
-#define VIRTIO_PCI_CLASS(klass) \
-        OBJECT_CLASS_CHECK(VirtioPCIClass, klass, TYPE_VIRTIO_PCI)
-#define VIRTIO_PCI(obj) \
-        OBJECT_CHECK(VirtIOPCIProxy, (obj), TYPE_VIRTIO_PCI)
-
-typedef struct VirtioPCIClass {
+typedef struct VirtioPCIClass VirtioPCIClass;
+DECLARE_OBJ_CHECKERS(VirtIOPCIProxy, VirtioPCIClass,
+                     VIRTIO_PCI, TYPE_VIRTIO_PCI)
+
+struct VirtioPCIClass {
     PCIDeviceClass parent_class;
     DeviceRealize parent_dc_realize;
     void (*realize)(VirtIOPCIProxy *vpci_dev, Error **errp);
-} VirtioPCIClass;
+};
 
 typedef struct VirtIOPCIRegion {
     MemoryRegion mr;
diff --git a/hw/virtio/virtio-pmem-pci.h b/hw/virtio/virtio-pmem-pci.h
index 616abef093..63cfe727f7 100644
--- a/hw/virtio/virtio-pmem-pci.h
+++ b/hw/virtio/virtio-pmem-pci.h
@@ -16,6 +16,7 @@
 
 #include "hw/virtio/virtio-pci.h"
 #include "hw/virtio/virtio-pmem.h"
+#include "qom/object.h"
 
 typedef struct VirtIOPMEMPCI VirtIOPMEMPCI;
 
@@ -23,8 +24,8 @@ typedef struct VirtIOPMEMPCI VirtIOPMEMPCI;
  * virtio-pmem-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_PMEM_PCI "virtio-pmem-pci-base"
-#define VIRTIO_PMEM_PCI(obj) \
-        OBJECT_CHECK(VirtIOPMEMPCI, (obj), TYPE_VIRTIO_PMEM_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOPMEMPCI, VIRTIO_PMEM_PCI,
+                         TYPE_VIRTIO_PMEM_PCI)
 
 struct VirtIOPMEMPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-rng-pci.c b/hw/virtio/virtio-rng-pci.c
index 8afbb4c209..c1f916268b 100644
--- a/hw/virtio/virtio-rng-pci.c
+++ b/hw/virtio/virtio-rng-pci.c
@@ -15,6 +15,7 @@
 #include "hw/virtio/virtio-rng.h"
 #include "qapi/error.h"
 #include "qemu/module.h"
+#include "qom/object.h"
 
 typedef struct VirtIORngPCI VirtIORngPCI;
 
@@ -22,8 +23,8 @@ typedef struct VirtIORngPCI VirtIORngPCI;
  * virtio-rng-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_RNG_PCI "virtio-rng-pci-base"
-#define VIRTIO_RNG_PCI(obj) \
-        OBJECT_CHECK(VirtIORngPCI, (obj), TYPE_VIRTIO_RNG_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIORngPCI, VIRTIO_RNG_PCI,
+                         TYPE_VIRTIO_RNG_PCI)
 
 struct VirtIORngPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-scsi-pci.c b/hw/virtio/virtio-scsi-pci.c
index fa4b3bfb50..97fab74236 100644
--- a/hw/virtio/virtio-scsi-pci.c
+++ b/hw/virtio/virtio-scsi-pci.c
@@ -19,6 +19,7 @@
 #include "hw/virtio/virtio-scsi.h"
 #include "qemu/module.h"
 #include "virtio-pci.h"
+#include "qom/object.h"
 
 typedef struct VirtIOSCSIPCI VirtIOSCSIPCI;
 
@@ -26,8 +27,8 @@ typedef struct VirtIOSCSIPCI VirtIOSCSIPCI;
  * virtio-scsi-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_SCSI_PCI "virtio-scsi-pci-base"
-#define VIRTIO_SCSI_PCI(obj) \
-        OBJECT_CHECK(VirtIOSCSIPCI, (obj), TYPE_VIRTIO_SCSI_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOSCSIPCI, VIRTIO_SCSI_PCI,
+                         TYPE_VIRTIO_SCSI_PCI)
 
 struct VirtIOSCSIPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/virtio/virtio-serial-pci.c b/hw/virtio/virtio-serial-pci.c
index 95d25d54da..35bcd961c9 100644
--- a/hw/virtio/virtio-serial-pci.c
+++ b/hw/virtio/virtio-serial-pci.c
@@ -21,6 +21,7 @@
 #include "hw/virtio/virtio-serial.h"
 #include "qemu/module.h"
 #include "virtio-pci.h"
+#include "qom/object.h"
 
 typedef struct VirtIOSerialPCI VirtIOSerialPCI;
 
@@ -28,8 +29,8 @@ typedef struct VirtIOSerialPCI VirtIOSerialPCI;
  * virtio-serial-pci: This extends VirtioPCIProxy.
  */
 #define TYPE_VIRTIO_SERIAL_PCI "virtio-serial-pci-base"
-#define VIRTIO_SERIAL_PCI(obj) \
-        OBJECT_CHECK(VirtIOSerialPCI, (obj), TYPE_VIRTIO_SERIAL_PCI)
+DECLARE_INSTANCE_CHECKER(VirtIOSerialPCI, VIRTIO_SERIAL_PCI,
+                         TYPE_VIRTIO_SERIAL_PCI)
 
 struct VirtIOSerialPCI {
     VirtIOPCIProxy parent_obj;
diff --git a/hw/watchdog/wdt_i6300esb.c b/hw/watchdog/wdt_i6300esb.c
index 370cf92e85..4f64899a56 100644
--- a/hw/watchdog/wdt_i6300esb.c
+++ b/hw/watchdog/wdt_i6300esb.c
@@ -26,6 +26,7 @@
 #include "sysemu/watchdog.h"
 #include "hw/pci/pci.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 /*#define I6300ESB_DEBUG 1*/
 
@@ -104,8 +105,8 @@ struct I6300State {
 typedef struct I6300State I6300State;
 
 #define TYPE_WATCHDOG_I6300ESB_DEVICE "i6300esb"
-#define WATCHDOG_I6300ESB_DEVICE(obj) \
-    OBJECT_CHECK(I6300State, (obj), TYPE_WATCHDOG_I6300ESB_DEVICE)
+DECLARE_INSTANCE_CHECKER(I6300State, WATCHDOG_I6300ESB_DEVICE,
+                         TYPE_WATCHDOG_I6300ESB_DEVICE)
 
 /* This function is called when the watchdog has either been enabled
  * (hence it starts counting down) or has been keep-alived.
diff --git a/hw/watchdog/wdt_ib700.c b/hw/watchdog/wdt_ib700.c
index 985944a84a..177aaa503f 100644
--- a/hw/watchdog/wdt_ib700.c
+++ b/hw/watchdog/wdt_ib700.c
@@ -25,6 +25,7 @@
 #include "sysemu/watchdog.h"
 #include "hw/isa/isa.h"
 #include "migration/vmstate.h"
+#include "qom/object.h"
 
 /*#define IB700_DEBUG 1*/
 
@@ -36,15 +37,17 @@
 #endif
 
 #define TYPE_IB700 "ib700"
-#define IB700(obj) OBJECT_CHECK(IB700State, (obj), TYPE_IB700)
+typedef struct IB700state IB700State;
+DECLARE_INSTANCE_CHECKER(IB700State, IB700,
+                         TYPE_IB700)
 
-typedef struct IB700state {
+struct IB700state {
     ISADevice parent_obj;
 
     QEMUTimer *timer;
 
     PortioList port_list;
-} IB700State;
+};
 
 /* This is the timer.  We use a global here because the watchdog
  * code ensures there is only one watchdog (it is located at a fixed,
diff --git a/hw/xen/xen_pt.h b/hw/xen/xen_pt.h
index 6e9cec95f3..f46971eac6 100644
--- a/hw/xen/xen_pt.h
+++ b/hw/xen/xen_pt.h
@@ -4,6 +4,7 @@
 #include "hw/xen/xen_common.h"
 #include "hw/pci/pci.h"
 #include "xen-host-pci-device.h"
+#include "qom/object.h"
 
 bool xen_igd_gfx_pt_enabled(void);
 void xen_igd_gfx_pt_set(bool value, Error **errp);
@@ -39,8 +40,8 @@ typedef struct XenPTReg XenPTReg;
 typedef struct XenPCIPassthroughState XenPCIPassthroughState;
 
 #define TYPE_XEN_PT_DEVICE "xen-pci-passthrough"
-#define XEN_PT_DEVICE(obj) \
-    OBJECT_CHECK(XenPCIPassthroughState, (obj), TYPE_XEN_PT_DEVICE)
+DECLARE_INSTANCE_CHECKER(XenPCIPassthroughState, XEN_PT_DEVICE,
+                         TYPE_XEN_PT_DEVICE)
 
 uint32_t igd_read_opregion(XenPCIPassthroughState *s);
 void igd_write_opregion(XenPCIPassthroughState *s, uint32_t val);
author	Peter Maydell <peter.maydell@linaro.org>	2020-09-11 19:26:51 +0100
committer	Peter Maydell <peter.maydell@linaro.org>	2020-09-11 19:26:51 +0100
commit	f4ef8c9cc10b3bee829b9775879d4ff9f77c2442 (patch)
tree	8245341c3ebfe98b9673bf7a8cb818b6d494c76f /hw
parent	2499453eb1cbb68a45d7562a180afd7659007fd4 (diff)
parent	b84bf23c88699098973de3bdec316c796f1b3794 (diff)