Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Linux header upgrade (Peter)
* firmware.json definition (Laszlo)
* IPMI migration fix (Corey)
* QOM improvements (Alexey, Philippe, me)
* Memory API cleanups (Jay, me, Tristan, Peter)
* WHPX fixes and improvements (Lucian)
* Chardev fixes (Marc-André)
* IOMMU documentation improvements (Peter)
* Coverity fixes (Peter, Philippe)
* Include cleanup (Philippe)
* -clock deprecation (Thomas)
* Disable -sandbox unless CONFIG_SECCOMP (Yi Min Zhao)
* Configurability improvements (me)

# gpg: Signature made Fri 01 Jun 2018 17:42:13 BST
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (56 commits)
  hw: make virtio devices configurable via default-configs/
  hw: allow compiling out SCSI
  memory: Make operations using MemoryRegionIoeventfd struct pass by pointer.
  char: Remove unwanted crlf conversion
  qdev: Remove DeviceClass::init() and ::exit()
  qdev: Simplify the SysBusDeviceClass::init path
  hw/i2c: Use DeviceClass::realize instead of I2CSlaveClass::init
  hw/i2c/smbus: Use DeviceClass::realize instead of SMBusDeviceClass::init
  target/i386/kvm.c: Remove compatibility shim for KVM_HINTS_REALTIME
  Update Linux headers to 4.17-rc6
  target/i386/kvm.c: Handle renaming of KVM_HINTS_DEDICATED
  scripts/update-linux-headers: Handle kernel license no longer being one file
  scripts/update-linux-headers: Handle __aligned_u64
  virtio-gpu-3d: Define VIRTIO_GPU_CAPSET_VIRGL2 elsewhere
  gdbstub: Prevent fd leakage
  docs/interop: add "firmware.json"
  ipmi: Use proper struct reference for KCS vmstate
  vmstate: Add a VSTRUCT type
  tcg: remove softfloat from --disable-tcg builds
  qemu-options: Mark the non-functional -clock option as deprecated
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

105 files changed, 165 insertions, 248 deletions

diff --git a/hw/9pfs/Makefile.objs b/hw/9pfs/Makefile.objs
index fd90b62900..e3fa673665 100644
--- a/hw/9pfs/Makefile.objs
+++ b/hw/9pfs/Makefile.objs
@@ -1,3 +1,4 @@
+ifeq ($(call lor,$(CONFIG_VIRTIO_9P),$(CONFIG_XEN)),y)
 common-obj-y  = 9p.o 9p-util.o
 common-obj-y += 9p-local.o 9p-xattr.o
 common-obj-y += 9p-xattr-user.o 9p-posix-acl.o
@@ -5,6 +6,7 @@ common-obj-y += coth.o cofs.o codir.o cofile.o
 common-obj-y += coxattr.o 9p-synth.o
 common-obj-$(CONFIG_OPEN_BY_HANDLE) +=  9p-handle.o
 common-obj-y += 9p-proxy.o
-common-obj-$(CONFIG_XEN) += xen-9p-backend.o
+endif
 
-obj-$(CONFIG_VIRTIO) += virtio-9p-device.o
+common-obj-$(CONFIG_XEN) += xen-9p-backend.o
+obj-$(CONFIG_VIRTIO_9P) += virtio-9p-device.o
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 6a0ffe0afd..a19c1417ed 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -23,7 +23,7 @@ devices-dirs-$(CONFIG_SOFTMMU) += nvram/
 devices-dirs-$(CONFIG_SOFTMMU) += pci/
 devices-dirs-$(CONFIG_PCI) += pci-bridge/ pci-host/
 devices-dirs-$(CONFIG_SOFTMMU) += pcmcia/
-devices-dirs-$(CONFIG_SOFTMMU) += scsi/
+devices-dirs-$(CONFIG_SCSI) += scsi/
 devices-dirs-$(CONFIG_SOFTMMU) += sd/
 devices-dirs-$(CONFIG_SOFTMMU) += ssi/
 devices-dirs-$(CONFIG_SOFTMMU) += timer/
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 91c82fdc7a..80d42e12ff 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -32,7 +32,6 @@
 #include "hw/pci/pci.h"
 #include "hw/acpi/acpi.h"
 #include "sysemu/sysemu.h"
-#include "exec/ioport.h"
 #include "exec/address-spaces.h"
 #include "hw/pci/pci_bus.h"
 #include "qapi/error.h"
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 8b703455b7..6404af5f33 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -28,7 +28,6 @@
 #include "sysemu/sysemu.h"
 #include "qapi/error.h"
 #include "qemu/range.h"
-#include "exec/ioport.h"
 #include "hw/nvram/fw_cfg.h"
 #include "exec/address-spaces.h"
 #include "hw/acpi/piix4.h"
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index aecb3c1e75..a7110a712f 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -19,7 +19,6 @@
 #include "hw/boards.h"
 #include "qemu/log.h"
 #include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 #include "hw/loader.h"
 #include "qemu/error-report.h"
 
diff --git a/hw/arm/bcm2836.c b/hw/arm/bcm2836.c
index 3c4b44a53e..6805a7d7c8 100644
--- a/hw/arm/bcm2836.c
+++ b/hw/arm/bcm2836.c
@@ -15,7 +15,6 @@
 #include "hw/arm/bcm2836.h"
 #include "hw/arm/raspi_platform.h"
 #include "hw/sysbus.h"
-#include "exec/address-spaces.h"
 
 /* Peripheral base address seen by the CPU */
 #define BCM2836_PERI_BASE       0x3F000000
diff --git a/hw/arm/collie.c b/hw/arm/collie.c
index f8c566e2e5..48b732c176 100644
--- a/hw/arm/collie.c
+++ b/hw/arm/collie.c
@@ -16,7 +16,6 @@
 #include "strongarm.h"
 #include "hw/arm/arm.h"
 #include "hw/block/flash.h"
-#include "sysemu/block-backend.h"
 #include "exec/address-spaces.h"
 #include "cpu.h"
 
diff --git a/hw/arm/gumstix.c b/hw/arm/gumstix.c
index ea2a3c532d..56cb763c4e 100644
--- a/hw/arm/gumstix.c
+++ b/hw/arm/gumstix.c
@@ -42,7 +42,6 @@
 #include "hw/block/flash.h"
 #include "hw/devices.h"
 #include "hw/boards.h"
-#include "sysemu/block-backend.h"
 #include "exec/address-spaces.h"
 #include "sysemu/qtest.h"
 #include "cpu.h"
diff --git a/hw/arm/mainstone.c b/hw/arm/mainstone.c
index 4215c025fc..0beb5c426b 100644
--- a/hw/arm/mainstone.c
+++ b/hw/arm/mainstone.c
@@ -21,7 +21,6 @@
 #include "hw/devices.h"
 #include "hw/boards.h"
 #include "hw/block/flash.h"
-#include "sysemu/block-backend.h"
 #include "hw/sysbus.h"
 #include "exec/address-spaces.h"
 #include "sysemu/qtest.h"
diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
index 32687afced..906b7ca22d 100644
--- a/hw/arm/nseries.c
+++ b/hw/arm/nseries.c
@@ -35,7 +35,6 @@
 #include "hw/hw.h"
 #include "hw/bt.h"
 #include "hw/loader.h"
-#include "sysemu/block-backend.h"
 #include "hw/sysbus.h"
 #include "qemu/log.h"
 #include "exec/address-spaces.h"
diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
index e54c1f8f99..9af04728e3 100644
--- a/hw/arm/omap1.c
+++ b/hw/arm/omap1.c
@@ -28,8 +28,6 @@
 #include "hw/arm/omap.h"
 #include "sysemu/sysemu.h"
 #include "hw/arm/soc_dma.h"
-#include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 #include "sysemu/qtest.h"
 #include "qemu/range.h"
 #include "hw/sysbus.h"
diff --git a/hw/arm/omap2.c b/hw/arm/omap2.c
index b8d0910a1f..3c7d1364a9 100644
--- a/hw/arm/omap2.c
+++ b/hw/arm/omap2.c
@@ -23,8 +23,6 @@
 #include "qapi/error.h"
 #include "qemu-common.h"
 #include "cpu.h"
-#include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 #include "sysemu/qtest.h"
 #include "hw/boards.h"
 #include "hw/hw.h"
diff --git a/hw/arm/omap_sx1.c b/hw/arm/omap_sx1.c
index eccc19c77b..84550f0236 100644
--- a/hw/arm/omap_sx1.c
+++ b/hw/arm/omap_sx1.c
@@ -33,7 +33,6 @@
 #include "hw/boards.h"
 #include "hw/arm/arm.h"
 #include "hw/block/flash.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/qtest.h"
 #include "exec/address-spaces.h"
 #include "cpu.h"
diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index a2803fdee4..b67b0cefb6 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -19,7 +19,6 @@
 #include "hw/i2c/i2c.h"
 #include "hw/ssi/ssi.h"
 #include "chardev/char-fe.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "sysemu/qtest.h"
 #include "qemu/cutils.h"
diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c
index e419e3c00e..3cc27a1e44 100644
--- a/hw/arm/spitz.c
+++ b/hw/arm/spitz.c
@@ -27,7 +27,6 @@
 #include "hw/audio/wm8750.h"
 #include "audio/audio.h"
 #include "hw/boards.h"
-#include "sysemu/block-backend.h"
 #include "hw/sysbus.h"
 #include "exec/address-spaces.h"
 #include "cpu.h"
diff --git a/hw/arm/versatilepb.c b/hw/arm/versatilepb.c
index e01e3192ff..a5a06b6d40 100644
--- a/hw/arm/versatilepb.c
+++ b/hw/arm/versatilepb.c
@@ -19,7 +19,6 @@
 #include "hw/pci/pci.h"
 #include "hw/i2c/i2c.h"
 #include "hw/boards.h"
-#include "sysemu/block-backend.h"
 #include "exec/address-spaces.h"
 #include "hw/block/flash.h"
 #include "qemu/error-report.h"
diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c
index f1e33c8a36..5bfe2e4348 100644
--- a/hw/arm/vexpress.c
+++ b/hw/arm/vexpress.c
@@ -35,7 +35,6 @@
 #include "hw/boards.h"
 #include "hw/loader.h"
 #include "exec/address-spaces.h"
-#include "sysemu/block-backend.h"
 #include "hw/block/flash.h"
 #include "sysemu/device_tree.h"
 #include "qemu/error-report.h"
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index a3a28e20e8..3aa19b2935 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -38,7 +38,6 @@
 #include "hw/vfio/vfio-amd-xgbe.h"
 #include "hw/devices.h"
 #include "net/net.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/device_tree.h"
 #include "sysemu/numa.h"
 #include "sysemu/sysemu.h"
diff --git a/hw/arm/xilinx_zynq.c b/hw/arm/xilinx_zynq.c
index 899a26326f..f1496d2927 100644
--- a/hw/arm/xilinx_zynq.c
+++ b/hw/arm/xilinx_zynq.c
@@ -26,7 +26,6 @@
 #include "sysemu/sysemu.h"
 #include "hw/boards.h"
 #include "hw/block/flash.h"
-#include "sysemu/block-backend.h"
 #include "hw/loader.h"
 #include "hw/misc/zynq-xadc.h"
 #include "hw/ssi/ssi.h"
diff --git a/hw/arm/xlnx-zcu102.c b/hw/arm/xlnx-zcu102.c
index b126cf148b..c70278c8c1 100644
--- a/hw/arm/xlnx-zcu102.c
+++ b/hw/arm/xlnx-zcu102.c
@@ -22,7 +22,6 @@
 #include "hw/arm/xlnx-zynqmp.h"
 #include "hw/boards.h"
 #include "qemu/error-report.h"
-#include "exec/address-spaces.h"
 #include "qemu/log.h"
 #include "sysemu/qtest.h"
 
diff --git a/hw/arm/z2.c b/hw/arm/z2.c
index 730a5392e9..697a822f1e 100644
--- a/hw/arm/z2.c
+++ b/hw/arm/z2.c
@@ -21,7 +21,6 @@
 #include "hw/boards.h"
 #include "sysemu/sysemu.h"
 #include "hw/block/flash.h"
-#include "sysemu/block-backend.h"
 #include "ui/console.h"
 #include "hw/audio/wm8750.h"
 #include "audio/audio.h"
diff --git a/hw/audio/wm8750.c b/hw/audio/wm8750.c
index 416a78e869..f4aa838f62 100644
--- a/hw/audio/wm8750.c
+++ b/hw/audio/wm8750.c
@@ -617,14 +617,12 @@ static const VMStateDescription vmstate_wm8750 = {
     }
 };
 
-static int wm8750_init(I2CSlave *i2c)
+static void wm8750_realize(DeviceState *dev, Error **errp)
 {
-    WM8750State *s = WM8750(i2c);
+    WM8750State *s = WM8750(dev);
 
     AUD_register_card(CODEC, &s->card);
     wm8750_reset(I2C_SLAVE(s));
-
-    return 0;
 }
 
 #if 0
@@ -707,7 +705,7 @@ static void wm8750_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
 
-    sc->init = wm8750_init;
+    dc->realize = wm8750_realize;
     sc->event = wm8750_event;
     sc->recv = wm8750_rx;
     sc->send = wm8750_tx;
diff --git a/hw/block/Makefile.objs b/hw/block/Makefile.objs
index 4c19a583c8..53ce5751ae 100644
--- a/hw/block/Makefile.objs
+++ b/hw/block/Makefile.objs
@@ -11,8 +11,6 @@ common-obj-$(CONFIG_NVME_PCI) += nvme.o
 
 obj-$(CONFIG_SH4) += tc58128.o
 
-obj-$(CONFIG_VIRTIO) += virtio-blk.o
-obj-$(CONFIG_VIRTIO) += dataplane/
-ifeq ($(CONFIG_VIRTIO),y)
+obj-$(CONFIG_VIRTIO_BLK) += virtio-blk.o
+obj-$(CONFIG_VIRTIO_BLK) += dataplane/
 obj-$(CONFIG_VHOST_USER_BLK) += vhost-user-blk.o
-endif
diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c
index 101f32cf66..d648aeb73b 100644
--- a/hw/block/dataplane/virtio-blk.c
+++ b/hw/block/dataplane/virtio-blk.c
@@ -19,7 +19,6 @@
 #include "qemu/thread.h"
 #include "qemu/error-report.h"
 #include "hw/virtio/virtio-access.h"
-#include "sysemu/block-backend.h"
 #include "hw/virtio/virtio-blk.h"
 #include "virtio-blk.h"
 #include "block/aio.h"
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index b49c8e9caa..a5ccffb4aa 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -24,7 +24,6 @@
 #include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 #include "hw/ssi/ssi.h"
 #include "qemu/bitops.h"
 #include "qemu/log.h"
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 85d2406400..811084b6a7 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -35,6 +35,7 @@
 #include "sysemu/block-backend.h"
 
 #include "qemu/log.h"
+#include "qemu/cutils.h"
 #include "trace.h"
 #include "nvme.h"
 
diff --git a/hw/block/nvme.h b/hw/block/nvme.h
index 8f3981121d..cabcf20c32 100644
--- a/hw/block/nvme.h
+++ b/hw/block/nvme.h
@@ -1,6 +1,5 @@
 #ifndef HW_NVME_H
 #define HW_NVME_H
-#include "qemu/cutils.h"
 #include "block/nvme.h"
 
 typedef struct NvmeAsyncEvent {
diff --git a/hw/block/onenand.c b/hw/block/onenand.c
index ed77f859e9..0cb8d7fa13 100644
--- a/hw/block/onenand.c
+++ b/hw/block/onenand.c
@@ -25,9 +25,7 @@
 #include "hw/block/flash.h"
 #include "hw/irq.h"
 #include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 #include "exec/memory.h"
-#include "exec/address-spaces.h"
 #include "hw/sysbus.h"
 #include "qemu/error-report.h"
 
diff --git a/hw/block/pflash_cfi01.c b/hw/block/pflash_cfi01.c
index 2e8284001d..e4b5b3c273 100644
--- a/hw/block/pflash_cfi01.c
+++ b/hw/block/pflash_cfi01.c
@@ -43,7 +43,6 @@
 #include "qapi/error.h"
 #include "qemu/timer.h"
 #include "qemu/bitops.h"
-#include "exec/address-spaces.h"
 #include "qemu/host-utils.h"
 #include "qemu/log.h"
 #include "hw/sysbus.h"
diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c
index 75d1ae1026..a8b3f7f978 100644
--- a/hw/block/pflash_cfi02.c
+++ b/hw/block/pflash_cfi02.c
@@ -41,7 +41,6 @@
 #include "qapi/error.h"
 #include "qemu/timer.h"
 #include "sysemu/block-backend.h"
-#include "exec/address-spaces.h"
 #include "qemu/host-utils.h"
 #include "hw/sysbus.h"
 
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index b1532e4e91..50b5c869e3 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -18,7 +18,6 @@
 #include "qemu/error-report.h"
 #include "trace.h"
 #include "hw/block/block.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "hw/virtio/virtio-blk.h"
 #include "dataplane/virtio-blk.h"
diff --git a/hw/char/Makefile.objs b/hw/char/Makefile.objs
index 1b979100b7..b570531291 100644
--- a/hw/char/Makefile.objs
+++ b/hw/char/Makefile.objs
@@ -6,7 +6,7 @@ common-obj-$(CONFIG_PL011) += pl011.o
 common-obj-$(CONFIG_SERIAL) += serial.o
 common-obj-$(CONFIG_SERIAL_ISA) += serial-isa.o
 common-obj-$(CONFIG_SERIAL_PCI) += serial-pci.o
-common-obj-$(CONFIG_VIRTIO) += virtio-console.o
+common-obj-$(CONFIG_VIRTIO_SERIAL) += virtio-console.o
 common-obj-$(CONFIG_XILINX) += xilinx_uartlite.o
 common-obj-$(CONFIG_XEN) += xen_console.o
 common-obj-$(CONFIG_CADENCE) += cadence_uart.o
diff --git a/hw/char/mcf_uart.c b/hw/char/mcf_uart.c
index faae083e78..787f985db6 100644
--- a/hw/char/mcf_uart.c
+++ b/hw/char/mcf_uart.c
@@ -10,7 +10,6 @@
 #include "hw/sysbus.h"
 #include "hw/m68k/mcf.h"
 #include "chardev/char-fe.h"
-#include "exec/address-spaces.h"
 
 typedef struct {
     SysBusDevice parent_obj;
diff --git a/hw/char/serial.c b/hw/char/serial.c
index 2c080c9862..605b0d02f9 100644
--- a/hw/char/serial.c
+++ b/hw/char/serial.c
@@ -28,7 +28,6 @@
 #include "chardev/char-serial.h"
 #include "qapi/error.h"
 #include "qemu/timer.h"
-#include "exec/address-spaces.h"
 #include "qemu/error-report.h"
 
 //#define DEBUG_SERIAL
diff --git a/hw/char/sh_serial.c b/hw/char/sh_serial.c
index 835b5378a0..373a40595f 100644
--- a/hw/char/sh_serial.c
+++ b/hw/char/sh_serial.c
@@ -28,7 +28,6 @@
 #include "hw/hw.h"
 #include "hw/sh4/sh.h"
 #include "chardev/char-fe.h"
-#include "exec/address-spaces.h"
 #include "qapi/error.h"
 
 //#define DEBUG_SERIAL
diff --git a/hw/core/loader-fit.c b/hw/core/loader-fit.c
index 0c4a7207f4..6387854b54 100644
--- a/hw/core/loader-fit.c
+++ b/hw/core/loader-fit.c
@@ -18,7 +18,6 @@
  */
 
 #include "qemu/osdep.h"
-#include "exec/address-spaces.h"
 #include "exec/memory.h"
 #include "hw/loader.h"
 #include "hw/loader-fit.h"
diff --git a/hw/core/platform-bus.c b/hw/core/platform-bus.c
index 807cb5ccda..e473a44746 100644
--- a/hw/core/platform-bus.c
+++ b/hw/core/platform-bus.c
@@ -21,7 +21,6 @@
 
 #include "qemu/osdep.h"
 #include "hw/platform-bus.h"
-#include "exec/address-spaces.h"
 #include "qemu/error-report.h"
 #include "sysemu/sysemu.h"
 
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index 5bbc2d98b5..989778ab7f 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -5,7 +5,6 @@
 #include "hw/pci/pci.h"
 #include "qapi/qmp/qerror.h"
 #include "qemu/error-report.h"
-#include "sysemu/block-backend.h"
 #include "hw/block/block.h"
 #include "net/hub.h"
 #include "qapi/visitor.h"
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index f6f92473b8..ffec461791 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -208,32 +208,6 @@ void device_listener_unregister(DeviceListener *listener)
     QTAILQ_REMOVE(&device_listeners, listener, link);
 }
 
-static void device_realize(DeviceState *dev, Error **errp)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-
-    if (dc->init) {
-        int rc = dc->init(dev);
-        if (rc < 0) {
-            error_setg(errp, "Device initialization failed.");
-            return;
-        }
-    }
-}
-
-static void device_unrealize(DeviceState *dev, Error **errp)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-
-    if (dc->exit) {
-        int rc = dc->exit(dev);
-        if (rc < 0) {
-            error_setg(errp, "Device exit failed.");
-            return;
-        }
-    }
-}
-
 void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
                                  int required_for_version)
 {
@@ -1065,8 +1039,6 @@ static void device_class_init(ObjectClass *class, void *data)
     DeviceClass *dc = DEVICE_CLASS(class);
 
     class->unparent = device_unparent;
-    dc->realize = device_realize;
-    dc->unrealize = device_unrealize;
 
     /* by default all devices were considered as hotpluggable,
      * so with intent to check it in generic qdev_unplug() /
diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 5d0887f499..ecfb0cfc0e 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -18,6 +18,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qapi/error.h"
 #include "hw/sysbus.h"
 #include "monitor/monitor.h"
 #include "exec/address-spaces.h"
@@ -200,15 +201,18 @@ void sysbus_init_ioports(SysBusDevice *dev, uint32_t ioport, uint32_t size)
     }
 }
 
-static int sysbus_device_init(DeviceState *dev)
+/* TODO remove once all sysbus devices have been converted to realize */
+static void sysbus_realize(DeviceState *dev, Error **errp)
 {
     SysBusDevice *sd = SYS_BUS_DEVICE(dev);
     SysBusDeviceClass *sbc = SYS_BUS_DEVICE_GET_CLASS(sd);
 
     if (!sbc->init) {
-        return 0;
+        return;
+    }
+    if (sbc->init(sd) < 0) {
+        error_setg(errp, "Device initialization failed");
     }
-    return sbc->init(sd);
 }
 
 DeviceState *sysbus_create_varargs(const char *name,
@@ -324,7 +328,7 @@ MemoryRegion *sysbus_address_space(SysBusDevice *dev)
 static void sysbus_device_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *k = DEVICE_CLASS(klass);
-    k->init = sysbus_device_init;
+    k->realize = sysbus_realize;
     k->bus_type = TYPE_SYSTEM_BUS;
     /*
      * device_add plugs devices into a suitable bus.  For "real" buses,
diff --git a/hw/cris/axis_dev88.c b/hw/cris/axis_dev88.c
index 409f3d581a..56ee398ee5 100644
--- a/hw/cris/axis_dev88.c
+++ b/hw/cris/axis_dev88.c
@@ -34,7 +34,6 @@
 #include "hw/loader.h"
 #include "elf.h"
 #include "boot.h"
-#include "sysemu/block-backend.h"
 #include "exec/address-spaces.h"
 #include "sysemu/qtest.h"
 #include "sysemu/sysemu.h"
diff --git a/hw/display/Makefile.objs b/hw/display/Makefile.objs
index d907b381ae..b5d97ab26d 100644
--- a/hw/display/Makefile.objs
+++ b/hw/display/Makefile.objs
@@ -36,8 +36,8 @@ obj-$(CONFIG_VGA) += vga.o
 
 common-obj-$(CONFIG_QXL) += qxl.o qxl-logger.o qxl-render.o
 
-obj-$(CONFIG_VIRTIO) += virtio-gpu.o virtio-gpu-3d.o
-obj-$(CONFIG_VIRTIO_PCI) += virtio-gpu-pci.o
+obj-$(CONFIG_VIRTIO_GPU) += virtio-gpu.o virtio-gpu-3d.o
+obj-$(call land,$(CONFIG_VIRTIO_GPU),$(CONFIG_VIRTIO_PCI)) += virtio-gpu-pci.o
 obj-$(CONFIG_VIRTIO_VGA) += virtio-vga.o
 virtio-gpu.o-cflags := $(VIRGL_CFLAGS)
 virtio-gpu.o-libs += $(VIRGL_LIBS)
diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index f4bb33c279..e47be99451 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -36,7 +36,6 @@
 #include "hw/pci/pci.h"
 #include "qemu/range.h"
 #include "ui/pixel_ops.h"
-#include "exec/address-spaces.h"
 
 /*
  * Status: 2010/05/07
diff --git a/hw/display/ssd0303.c b/hw/display/ssd0303.c
index 68a80b9d64..eb90ba26be 100644
--- a/hw/display/ssd0303.c
+++ b/hw/display/ssd0303.c
@@ -297,13 +297,12 @@ static const GraphicHwOps ssd0303_ops = {
     .gfx_update  = ssd0303_update_display,
 };
 
-static int ssd0303_init(I2CSlave *i2c)
+static void ssd0303_realize(DeviceState *dev, Error **errp)
 {
-    ssd0303_state *s = SSD0303(i2c);
+    ssd0303_state *s = SSD0303(dev);
 
-    s->con = graphic_console_init(DEVICE(i2c), 0, &ssd0303_ops, s);
+    s->con = graphic_console_init(dev, 0, &ssd0303_ops, s);
     qemu_console_resize(s->con, 96 * MAGNIFY, 16 * MAGNIFY);
-    return 0;
 }
 
 static void ssd0303_class_init(ObjectClass *klass, void *data)
@@ -311,7 +310,7 @@ static void ssd0303_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 
-    k->init = ssd0303_init;
+    dc->realize = ssd0303_realize;
     k->event = ssd0303_event;
     k->recv = ssd0303_recv;
     k->send = ssd0303_send;
diff --git a/hw/display/tc6393xb.c b/hw/display/tc6393xb.c
index 464465b7c2..8392e59493 100644
--- a/hw/display/tc6393xb.c
+++ b/hw/display/tc6393xb.c
@@ -18,7 +18,6 @@
 #include "hw/block/flash.h"
 #include "ui/console.h"
 #include "ui/pixel_ops.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 
 #define IRQ_TC6393_NAND		0
diff --git a/hw/gpio/max7310.c b/hw/gpio/max7310.c
index 4c203ef5c6..a560e3afd2 100644
--- a/hw/gpio/max7310.c
+++ b/hw/gpio/max7310.c
@@ -182,14 +182,13 @@ static void max7310_gpio_set(void *opaque, int line, int level)
 
 /* MAX7310 is SMBus-compatible (can be used with only SMBus protocols),
  * but also accepts sequences that are not SMBus so return an I2C device.  */
-static int max7310_init(I2CSlave *i2c)
+static void max7310_realize(DeviceState *dev, Error **errp)
 {
-    MAX7310State *s = MAX7310(i2c);
+    I2CSlave *i2c = I2C_SLAVE(dev);
+    MAX7310State *s = MAX7310(dev);
 
     qdev_init_gpio_in(&i2c->qdev, max7310_gpio_set, 8);
     qdev_init_gpio_out(&i2c->qdev, s->handler, 8);
-
-    return 0;
 }
 
 static void max7310_class_init(ObjectClass *klass, void *data)
@@ -197,7 +196,7 @@ static void max7310_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 
-    k->init = max7310_init;
+    dc->realize = max7310_realize;
     k->event = max7310_event;
     k->recv = max7310_rx;
     k->send = max7310_tx;
diff --git a/hw/hppa/hppa_sys.h b/hw/hppa/hppa_sys.h
index a182d1f34e..3f6c145120 100644
--- a/hw/hppa/hppa_sys.h
+++ b/hw/hppa/hppa_sys.h
@@ -3,7 +3,6 @@
 #ifndef HW_HPPA_SYS_H
 #define HW_HPPA_SYS_H
 
-#include "target/hppa/cpu-qom.h"
 #include "hw/pci/pci.h"
 #include "hw/pci/pci_host.h"
 #include "hw/ide.h"
diff --git a/hw/i2c/core.c b/hw/i2c/core.c
index cfccefca3d..ab72d5bf2b 100644
--- a/hw/i2c/core.c
+++ b/hw/i2c/core.c
@@ -258,18 +258,6 @@ const VMStateDescription vmstate_i2c_slave = {
     }
 };
 
-static int i2c_slave_qdev_init(DeviceState *dev)
-{
-    I2CSlave *s = I2C_SLAVE(dev);
-    I2CSlaveClass *sc = I2C_SLAVE_GET_CLASS(s);
-
-    if (sc->init) {
-        return sc->init(s);
-    }
-
-    return 0;
-}
-
 DeviceState *i2c_create_slave(I2CBus *bus, const char *name, uint8_t addr)
 {
     DeviceState *dev;
@@ -283,7 +271,6 @@ DeviceState *i2c_create_slave(I2CBus *bus, const char *name, uint8_t addr)
 static void i2c_slave_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *k = DEVICE_CLASS(klass);
-    k->init = i2c_slave_qdev_init;
     set_bit(DEVICE_CATEGORY_MISC, k->categories);
     k->bus_type = TYPE_I2C_BUS;
     k->props = i2c_props;
diff --git a/hw/i2c/smbus.c b/hw/i2c/smbus.c
index 2d1b79a689..587ce1ab7f 100644
--- a/hw/i2c/smbus.c
+++ b/hw/i2c/smbus.c
@@ -202,14 +202,6 @@ static int smbus_i2c_send(I2CSlave *s, uint8_t data)
     return 0;
 }
 
-static int smbus_device_init(I2CSlave *i2c)
-{
-    SMBusDevice *dev = SMBUS_DEVICE(i2c);
-    SMBusDeviceClass *sc = SMBUS_DEVICE_GET_CLASS(dev);
-
-    return sc->init(dev);
-}
-
 /* Master device commands.  */
 int smbus_quick_command(I2CBus *bus, uint8_t addr, int read)
 {
@@ -350,7 +342,6 @@ static void smbus_device_class_init(ObjectClass *klass, void *data)
 {
     I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
 
-    sc->init = smbus_device_init;
     sc->event = smbus_i2c_event;
     sc->recv = smbus_i2c_recv;
     sc->send = smbus_i2c_send;
diff --git a/hw/i2c/smbus_eeprom.c b/hw/i2c/smbus_eeprom.c
index b13ec0fe7a..125c887d1f 100644
--- a/hw/i2c/smbus_eeprom.c
+++ b/hw/i2c/smbus_eeprom.c
@@ -97,12 +97,11 @@ static uint8_t eeprom_read_data(SMBusDevice *dev, uint8_t cmd, int n)
     return eeprom_receive_byte(dev);
 }
 
-static int smbus_eeprom_initfn(SMBusDevice *dev)
+static void smbus_eeprom_realize(DeviceState *dev, Error **errp)
 {
     SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *)dev;
 
     eeprom->offset = 0;
-    return 0;
 }
 
 static Property smbus_eeprom_properties[] = {
@@ -115,7 +114,7 @@ static void smbus_eeprom_class_initfn(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     SMBusDeviceClass *sc = SMBUS_DEVICE_CLASS(klass);
 
-    sc->init = smbus_eeprom_initfn;
+    dc->realize = smbus_eeprom_realize;
     sc->quick_cmd = eeprom_quick_cmd;
     sc->send_byte = eeprom_send_byte;
     sc->receive_byte = eeprom_receive_byte;
diff --git a/hw/i386/kvm/i8254.c b/hw/i386/kvm/i8254.c
index 13f20f47d9..d4d4a859f0 100644
--- a/hw/i386/kvm/i8254.c
+++ b/hw/i386/kvm/i8254.c
@@ -293,7 +293,7 @@ static void kvm_pit_realizefn(DeviceState *dev, Error **errp)
         return;
     }
 
-    memory_region_init_reservation(&pit->ioports, NULL, "kvm-pit", 4);
+    memory_region_init_io(&pit->ioports, OBJECT(dev), NULL, NULL, "kvm-pit", 4);
 
     qdev_init_gpio_in(dev, kvm_pit_irq_control, 1);
 
diff --git a/hw/i386/kvm/i8259.c b/hw/i386/kvm/i8259.c
index 05394cdb7b..83b6bfec77 100644
--- a/hw/i386/kvm/i8259.c
+++ b/hw/i386/kvm/i8259.c
@@ -121,8 +121,8 @@ static void kvm_pic_realize(DeviceState *dev, Error **errp)
     PICCommonState *s = PIC_COMMON(dev);
     KVMPICClass *kpc = KVM_PIC_GET_CLASS(dev);
 
-    memory_region_init_reservation(&s->base_io, NULL, "kvm-pic", 2);
-    memory_region_init_reservation(&s->elcr_io, NULL, "kvm-elcr", 1);
+    memory_region_init_io(&s->base_io, OBJECT(dev), NULL, NULL, "kvm-pic", 2);
+    memory_region_init_io(&s->elcr_io, OBJECT(dev), NULL, NULL, "kvm-elcr", 1);
 
     kpc->parent_realize(dev, errp);
 }
diff --git a/hw/i386/kvm/ioapic.c b/hw/i386/kvm/ioapic.c
index 98ca480792..646f6245ee 100644
--- a/hw/i386/kvm/ioapic.c
+++ b/hw/i386/kvm/ioapic.c
@@ -142,7 +142,7 @@ static void kvm_ioapic_realize(DeviceState *dev, Error **errp)
 {
     IOAPICCommonState *s = IOAPIC_COMMON(dev);
 
-    memory_region_init_reservation(&s->io_memory, NULL, "kvm-ioapic", 0x1000);
+    memory_region_init_io(&s->io_memory, OBJECT(dev), NULL, NULL, "kvm-ioapic", 0x1000);
     /*
      * KVM ioapic only supports 0x11 now. This will only be used when
      * we want to dump ioapic version.
diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
index fc962c5fbc..70f6f26a94 100644
--- a/hw/i386/kvmvapic.c
+++ b/hw/i386/kvmvapic.c
@@ -11,7 +11,6 @@
 #include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "cpu.h"
-#include "exec/exec-all.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/cpus.h"
 #include "sysemu/hw_accel.h"
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index d768930d02..8b0803cb83 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -64,7 +64,6 @@
 #include "hw/acpi/acpi.h"
 #include "hw/acpi/cpu_hotplug.h"
 #include "hw/boards.h"
-#include "hw/pci/pci_host.h"
 #include "acpi-build.h"
 #include "hw/mem/pc-dimm.h"
 #include "qapi/error.h"
diff --git a/hw/i386/xen/xen-mapcache.c b/hw/i386/xen/xen-mapcache.c
index 12fd932284..628b813a11 100644
--- a/hw/i386/xen/xen-mapcache.c
+++ b/hw/i386/xen/xen-mapcache.c
@@ -14,7 +14,6 @@
 #include <sys/resource.h>
 
 #include "hw/xen/xen_backend.h"
-#include "sysemu/blockdev.h"
 #include "qemu/bitmap.h"
 
 #include <xen/hvm/params.h>
diff --git a/hw/ide/core.c b/hw/ide/core.c
index 866c659498..cc9ca28c33 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -25,7 +25,6 @@
 
 #include "qemu/osdep.h"
 #include "hw/hw.h"
-#include "hw/pci/pci.h"
 #include "hw/isa/isa.h"
 #include "qemu/error-report.h"
 #include "qemu/timer.h"
diff --git a/hw/ide/pci.c b/hw/ide/pci.c
index 1ab0a892d0..fe1ceeb0cd 100644
--- a/hw/ide/pci.c
+++ b/hw/ide/pci.c
@@ -26,7 +26,6 @@
 #include "hw/hw.h"
 #include "hw/pci/pci.h"
 #include "hw/isa/isa.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/dma.h"
 #include "qemu/error-report.h"
 #include "hw/ide/pci.h"
diff --git a/hw/ide/via.c b/hw/ide/via.c
index 117ac4d95e..238f038d72 100644
--- a/hw/ide/via.c
+++ b/hw/ide/via.c
@@ -27,7 +27,6 @@
 #include "hw/hw.h"
 #include "hw/pci/pci.h"
 #include "hw/isa/isa.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/dma.h"
 
diff --git a/hw/input/Makefile.objs b/hw/input/Makefile.objs
index 77e53e6883..c8b00f71ec 100644
--- a/hw/input/Makefile.objs
+++ b/hw/input/Makefile.objs
@@ -7,10 +7,10 @@ common-obj-y += ps2.o
 common-obj-$(CONFIG_STELLARIS_INPUT) += stellaris_input.o
 common-obj-$(CONFIG_TSC2005) += tsc2005.o
 
-common-obj-$(CONFIG_VIRTIO) += virtio-input.o
-common-obj-$(CONFIG_VIRTIO) += virtio-input-hid.o
+common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input.o
+common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input-hid.o
 ifeq ($(CONFIG_LINUX),y)
-common-obj-$(CONFIG_VIRTIO) += virtio-input-host.o
+common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input-host.o
 endif
 
 obj-$(CONFIG_MILKYMIST) += milkymist-softusb.o
diff --git a/hw/input/lm832x.c b/hw/input/lm832x.c
index d39953126b..74da30d9ca 100644
--- a/hw/input/lm832x.c
+++ b/hw/input/lm832x.c
@@ -464,20 +464,19 @@ static const VMStateDescription vmstate_lm_kbd = {
 };
 
 
-static int lm8323_init(I2CSlave *i2c)
+static void lm8323_realize(DeviceState *dev, Error **errp)
 {
-    LM823KbdState *s = LM8323(i2c);
+    LM823KbdState *s = LM8323(dev);
 
     s->model = 0x8323;
     s->pwm.tm[0] = timer_new_ns(QEMU_CLOCK_VIRTUAL, lm_kbd_pwm0_tick, s);
     s->pwm.tm[1] = timer_new_ns(QEMU_CLOCK_VIRTUAL, lm_kbd_pwm1_tick, s);
     s->pwm.tm[2] = timer_new_ns(QEMU_CLOCK_VIRTUAL, lm_kbd_pwm2_tick, s);
-    qdev_init_gpio_out(DEVICE(i2c), &s->nirq, 1);
+    qdev_init_gpio_out(dev, &s->nirq, 1);
 
     lm_kbd_reset(s);
 
     qemu_register_reset((void *) lm_kbd_reset, s);
-    return 0;
 }
 
 void lm832x_key_event(DeviceState *dev, int key, int state)
@@ -505,7 +504,7 @@ static void lm8323_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 
-    k->init = lm8323_init;
+    dc->realize = lm8323_realize;
     k->event = lm_i2c_event;
     k->recv = lm_i2c_rx;
     k->send = lm_i2c_tx;
diff --git a/hw/ipmi/isa_ipmi_kcs.c b/hw/ipmi/isa_ipmi_kcs.c
index 689587b65d..a79431554a 100644
--- a/hw/ipmi/isa_ipmi_kcs.c
+++ b/hw/ipmi/isa_ipmi_kcs.c
@@ -22,6 +22,7 @@
  * THE SOFTWARE.
  */
 #include "qemu/osdep.h"
+#include "qemu/log.h"
 #include "qapi/error.h"
 #include "hw/hw.h"
 #include "hw/ipmi/ipmi.h"
@@ -422,24 +423,69 @@ static void ipmi_isa_realize(DeviceState *dev, Error **errp)
     isa_register_ioport(isadev, &iik->kcs.io, iik->kcs.io_base);
 }
 
-const VMStateDescription vmstate_ISAIPMIKCSDevice = {
+static int ipmi_kcs_vmstate_post_load(void *opaque, int version)
+{
+    IPMIKCS *ik = opaque;
+
+    /* Make sure all the values are sane. */
+    if (ik->outpos >= MAX_IPMI_MSG_SIZE || ik->outlen >= MAX_IPMI_MSG_SIZE ||
+        ik->outpos >= ik->outlen) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "ipmi:kcs: vmstate transfer received bad out values: %d %d\n",
+                      ik->outpos, ik->outlen);
+        ik->outpos = 0;
+        ik->outlen = 0;
+    }
+
+    if (ik->inlen >= MAX_IPMI_MSG_SIZE) {
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "ipmi:kcs: vmstate transfer received bad in value: %d\n",
+                      ik->inlen);
+        ik->inlen = 0;
+    }
+
+    return 0;
+}
+
+static bool vmstate_kcs_before_version2(void *opaque, int version)
+{
+    return version <= 1;
+}
+
+static const VMStateDescription vmstate_IPMIKCS = {
+    .name = TYPE_IPMI_INTERFACE_PREFIX "kcs",
+    .version_id = 2,
+    .minimum_version_id = 1,
+    .post_load = ipmi_kcs_vmstate_post_load,
+    .fields      = (VMStateField[]) {
+        VMSTATE_BOOL(obf_irq_set, IPMIKCS),
+        VMSTATE_BOOL(atn_irq_set, IPMIKCS),
+        VMSTATE_UNUSED_TEST(vmstate_kcs_before_version2, 1), /* Was use_irq */
+        VMSTATE_BOOL(irqs_enabled, IPMIKCS),
+        VMSTATE_UINT32(outpos, IPMIKCS),
+        VMSTATE_UINT32_V(outlen, IPMIKCS, 2),
+        VMSTATE_UINT8_ARRAY(outmsg, IPMIKCS, MAX_IPMI_MSG_SIZE),
+        VMSTATE_UINT32_V(inlen, IPMIKCS, 2),
+        VMSTATE_UINT8_ARRAY(inmsg, IPMIKCS, MAX_IPMI_MSG_SIZE),
+        VMSTATE_BOOL(write_end, IPMIKCS),
+        VMSTATE_UINT8(status_reg, IPMIKCS),
+        VMSTATE_UINT8(data_out_reg, IPMIKCS),
+        VMSTATE_INT16(data_in_reg, IPMIKCS),
+        VMSTATE_INT16(cmd_reg, IPMIKCS),
+        VMSTATE_UINT8(waiting_rsp, IPMIKCS),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static const VMStateDescription vmstate_ISAIPMIKCSDevice = {
     .name = TYPE_IPMI_INTERFACE,
-    .version_id = 1,
+    .version_id = 2,
     .minimum_version_id = 1,
     .fields      = (VMStateField[]) {
-        VMSTATE_BOOL(kcs.obf_irq_set, ISAIPMIKCSDevice),
-        VMSTATE_BOOL(kcs.atn_irq_set, ISAIPMIKCSDevice),
-        VMSTATE_BOOL(kcs.use_irq, ISAIPMIKCSDevice),
-        VMSTATE_BOOL(kcs.irqs_enabled, ISAIPMIKCSDevice),
-        VMSTATE_UINT32(kcs.outpos, ISAIPMIKCSDevice),
-        VMSTATE_UINT8_ARRAY(kcs.outmsg, ISAIPMIKCSDevice, MAX_IPMI_MSG_SIZE),
-        VMSTATE_UINT8_ARRAY(kcs.inmsg, ISAIPMIKCSDevice, MAX_IPMI_MSG_SIZE),
-        VMSTATE_BOOL(kcs.write_end, ISAIPMIKCSDevice),
-        VMSTATE_UINT8(kcs.status_reg, ISAIPMIKCSDevice),
-        VMSTATE_UINT8(kcs.data_out_reg, ISAIPMIKCSDevice),
-        VMSTATE_INT16(kcs.data_in_reg, ISAIPMIKCSDevice),
-        VMSTATE_INT16(kcs.cmd_reg, ISAIPMIKCSDevice),
-        VMSTATE_UINT8(kcs.waiting_rsp, ISAIPMIKCSDevice),
+        VMSTATE_VSTRUCT_TEST(kcs, ISAIPMIKCSDevice, vmstate_kcs_before_version2,
+                             0, vmstate_IPMIKCS, IPMIKCS, 1),
+        VMSTATE_VSTRUCT_V(kcs, ISAIPMIKCSDevice, 2, vmstate_IPMIKCS,
+                          IPMIKCS, 2),
         VMSTATE_END_OF_LIST()
     }
 };
@@ -450,6 +496,11 @@ static void isa_ipmi_kcs_init(Object *obj)
 
     ipmi_bmc_find_and_link(obj, (Object **) &iik->kcs.bmc);
 
+    /*
+     * Version 1 had an incorrect name, it clashed with the BT
+     * IPMI device, so receive it, but transmit a different
+     * version.
+     */
     vmstate_register(NULL, 0, &vmstate_ISAIPMIKCSDevice, iik);
 }
 
diff --git a/hw/isa/isa-superio.c b/hw/isa/isa-superio.c
index 76286c81a1..8bc2f69eaa 100644
--- a/hw/isa/isa-superio.c
+++ b/hw/isa/isa-superio.c
@@ -13,7 +13,6 @@
 #include "qemu/error-report.h"
 #include "qapi/error.h"
 #include "sysemu/sysemu.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "chardev/char.h"
 #include "hw/isa/superio.h"
@@ -43,7 +42,7 @@ static void isa_superio_realize(DeviceState *dev, Error **errp)
         if (!k->parallel.is_enabled || k->parallel.is_enabled(sio, i)) {
             /* FIXME use a qdev chardev prop instead of parallel_hds[] */
             chr = parallel_hds[i];
-            if (chr == NULL || chr->be) {
+            if (chr == NULL) {
                 name = g_strdup_printf("discarding-parallel%d", i);
                 chr = qemu_chr_new(name, "null");
             } else {
@@ -83,7 +82,7 @@ static void isa_superio_realize(DeviceState *dev, Error **errp)
         if (!k->serial.is_enabled || k->serial.is_enabled(sio, i)) {
             /* FIXME use a qdev chardev prop instead of serial_hd() */
             chr = serial_hd(i);
-            if (chr == NULL || chr->be) {
+            if (chr == NULL) {
                 name = g_strdup_printf("discarding-serial%d", i);
                 chr = qemu_chr_new(name, "null");
             } else {
diff --git a/hw/lm32/lm32_boards.c b/hw/lm32/lm32_boards.c
index 907e875d02..167058348e 100644
--- a/hw/lm32/lm32_boards.c
+++ b/hw/lm32/lm32_boards.c
@@ -27,7 +27,6 @@
 #include "hw/devices.h"
 #include "hw/boards.h"
 #include "hw/loader.h"
-#include "sysemu/block-backend.h"
 #include "elf.h"
 #include "lm32_hwsetup.h"
 #include "lm32.h"
diff --git a/hw/lm32/milkymist.c b/hw/lm32/milkymist.c
index f9688e059e..c36bbc4ae2 100644
--- a/hw/lm32/milkymist.c
+++ b/hw/lm32/milkymist.c
@@ -30,7 +30,6 @@
 #include "hw/boards.h"
 #include "hw/loader.h"
 #include "elf.h"
-#include "sysemu/block-backend.h"
 #include "milkymist-hw.h"
 #include "lm32.h"
 #include "exec/address-spaces.h"
diff --git a/hw/m68k/mcf5206.c b/hw/m68k/mcf5206.c
index 6ad1e4bd2d..7abd84ac47 100644
--- a/hw/m68k/mcf5206.c
+++ b/hw/m68k/mcf5206.c
@@ -14,7 +14,6 @@
 #include "qemu/timer.h"
 #include "hw/ptimer.h"
 #include "sysemu/sysemu.h"
-#include "exec/address-spaces.h"
 
 /* General purpose timer module.  */
 typedef struct {
diff --git a/hw/m68k/mcf_intc.c b/hw/m68k/mcf_intc.c
index 8198afac1e..393ce284a2 100644
--- a/hw/m68k/mcf_intc.c
+++ b/hw/m68k/mcf_intc.c
@@ -11,7 +11,6 @@
 #include "hw/hw.h"
 #include "hw/sysbus.h"
 #include "hw/m68k/mcf.h"
-#include "exec/address-spaces.h"
 
 #define TYPE_MCF_INTC "mcf-intc"
 #define MCF_INTC(obj) OBJECT_CHECK(mcf_intc_state, (obj), TYPE_MCF_INTC)
diff --git a/hw/microblaze/petalogix_ml605_mmu.c b/hw/microblaze/petalogix_ml605_mmu.c
index cf6bf3f32a..6c4a544eac 100644
--- a/hw/microblaze/petalogix_ml605_mmu.c
+++ b/hw/microblaze/petalogix_ml605_mmu.c
@@ -36,7 +36,6 @@
 #include "sysemu/sysemu.h"
 #include "hw/devices.h"
 #include "hw/boards.h"
-#include "sysemu/block-backend.h"
 #include "hw/char/serial.h"
 #include "exec/address-spaces.h"
 #include "hw/ssi/ssi.h"
diff --git a/hw/microblaze/petalogix_s3adsp1800_mmu.c b/hw/microblaze/petalogix_s3adsp1800_mmu.c
index 1186002a76..0da3e62102 100644
--- a/hw/microblaze/petalogix_s3adsp1800_mmu.c
+++ b/hw/microblaze/petalogix_s3adsp1800_mmu.c
@@ -34,7 +34,6 @@
 #include "sysemu/sysemu.h"
 #include "hw/devices.h"
 #include "hw/boards.h"
-#include "sysemu/block-backend.h"
 #include "exec/address-spaces.h"
 #include "hw/char/xilinx_uartlite.h"
 
diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
index af70ecffc0..494f84e290 100644
--- a/hw/mips/mips_malta.c
+++ b/hw/mips/mips_malta.c
@@ -46,7 +46,6 @@
 #include "elf.h"
 #include "hw/timer/mc146818rtc.h"
 #include "hw/timer/i8254.h"
-#include "sysemu/blockdev.h"
 #include "exec/address-spaces.h"
 #include "hw/sysbus.h"             /* SysBusDevice */
 #include "qemu/host-utils.h"
diff --git a/hw/mips/mips_r4k.c b/hw/mips/mips_r4k.c
index e04b49d3c5..e5cf8ed1a3 100644
--- a/hw/mips/mips_r4k.c
+++ b/hw/mips/mips_r4k.c
@@ -30,7 +30,6 @@
 #include "hw/timer/mc146818rtc.h"
 #include "hw/input/i8042.h"
 #include "hw/timer/i8254.h"
-#include "sysemu/block-backend.h"
 #include "exec/address-spaces.h"
 #include "sysemu/qtest.h"
 #include "qemu/error-report.h"
diff --git a/hw/misc/arm_integrator_debug.c b/hw/misc/arm_integrator_debug.c
index 8a5f29559d..533e6e3208 100644
--- a/hw/misc/arm_integrator_debug.c
+++ b/hw/misc/arm_integrator_debug.c
@@ -17,7 +17,6 @@
 #include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "hw/sysbus.h"
-#include "exec/address-spaces.h"
 #include "hw/misc/arm_integrator_debug.h"
 #include "qemu/log.h"
 
diff --git a/hw/misc/mips_itu.c b/hw/misc/mips_itu.c
index c84a48bbb7..ccc4c7d98a 100644
--- a/hw/misc/mips_itu.c
+++ b/hw/misc/mips_itu.c
@@ -18,13 +18,10 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/log.h"
 #include "qapi/error.h"
 #include "cpu.h"
-#include "qemu/log.h"
 #include "exec/exec-all.h"
-#include "hw/hw.h"
-#include "hw/sysbus.h"
-#include "sysemu/sysemu.h"
 #include "hw/misc/mips_itu.h"
 
 #define ITC_TAG_ADDRSPACE_SZ (ITC_ADDRESSMAP_NUM * 8)
diff --git a/hw/misc/sga.c b/hw/misc/sga.c
index 97fd63f176..4a22a52a60 100644
--- a/hw/misc/sga.c
+++ b/hw/misc/sga.c
@@ -25,7 +25,7 @@
  *
  */
 #include "qemu/osdep.h"
-#include "hw/pci/pci.h"
+#include "hw/isa/isa.h"
 #include "hw/loader.h"
 #include "sysemu/sysemu.h"
 
diff --git a/hw/misc/tmp105.c b/hw/misc/tmp105.c
index 9e22d64e36..0918f3a6ea 100644
--- a/hw/misc/tmp105.c
+++ b/hw/misc/tmp105.c
@@ -229,15 +229,14 @@ static void tmp105_reset(I2CSlave *i2c)
     tmp105_interrupt_update(s);
 }
 
-static int tmp105_init(I2CSlave *i2c)
+static void tmp105_realize(DeviceState *dev, Error **errp)
 {
+    I2CSlave *i2c = I2C_SLAVE(dev);
     TMP105State *s = TMP105(i2c);
 
     qdev_init_gpio_out(&i2c->qdev, &s->pin, 1);
 
     tmp105_reset(&s->i2c);
-
-    return 0;
 }
 
 static void tmp105_initfn(Object *obj)
@@ -252,7 +251,7 @@ static void tmp105_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 
-    k->init = tmp105_init;
+    dc->realize = tmp105_realize;
     k->event = tmp105_event;
     k->recv = tmp105_rx;
     k->send = tmp105_tx;
diff --git a/hw/misc/tmp421.c b/hw/misc/tmp421.c
index 4a505abbce..c234044305 100644
--- a/hw/misc/tmp421.c
+++ b/hw/misc/tmp421.c
@@ -335,13 +335,11 @@ static void tmp421_reset(I2CSlave *i2c)
     s->status = 0;
 }
 
-static int tmp421_init(I2CSlave *i2c)
+static void tmp421_realize(DeviceState *dev, Error **errp)
 {
-    TMP421State *s = TMP421(i2c);
+    TMP421State *s = TMP421(dev);
 
     tmp421_reset(&s->i2c);
-
-    return 0;
 }
 
 static void tmp421_initfn(Object *obj)
@@ -366,7 +364,7 @@ static void tmp421_class_init(ObjectClass *klass, void *data)
     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
     TMP421Class *sc = TMP421_CLASS(klass);
 
-    k->init = tmp421_init;
+    dc->realize = tmp421_realize;
     k->event = tmp421_event;
     k->recv = tmp421_rx;
     k->send = tmp421_tx;
diff --git a/hw/net/Makefile.objs b/hw/net/Makefile.objs
index ab22968641..fa461d4463 100644
--- a/hw/net/Makefile.objs
+++ b/hw/net/Makefile.objs
@@ -36,7 +36,7 @@ obj-$(CONFIG_MILKYMIST) += milkymist-minimac2.o
 obj-$(CONFIG_PSERIES) += spapr_llan.o
 obj-$(CONFIG_XILINX_ETHLITE) += xilinx_ethlite.o
 
-obj-$(CONFIG_VIRTIO) += virtio-net.o
+obj-$(CONFIG_VIRTIO_NET) += virtio-net.o
 obj-y += vhost_net.o
 
 obj-$(CONFIG_ETSEC) += fsl_etsec/etsec.o fsl_etsec/registers.o \
diff --git a/hw/net/mcf_fec.c b/hw/net/mcf_fec.c
index bfa6b4bcce..0091e4ecdd 100644
--- a/hw/net/mcf_fec.c
+++ b/hw/net/mcf_fec.c
@@ -14,7 +14,6 @@
 #include "hw/sysbus.h"
 /* For crc32 */
 #include <zlib.h>
-#include "exec/address-spaces.h"
 
 //#define DEBUG_FEC 1
 
diff --git a/hw/net/ne2000-isa.c b/hw/net/ne2000-isa.c
index 70e5c1d3d4..c7fdeb0f6c 100644
--- a/hw/net/ne2000-isa.c
+++ b/hw/net/ne2000-isa.c
@@ -27,7 +27,6 @@
 #include "hw/qdev.h"
 #include "ne2000.h"
 #include "sysemu/sysemu.h"
-#include "exec/address-spaces.h"
 #include "qapi/error.h"
 #include "qapi/visitor.h"
 
diff --git a/hw/nvram/eeprom_at24c.c b/hw/nvram/eeprom_at24c.c
index 22183f5360..27cd01e615 100644
--- a/hw/nvram/eeprom_at24c.c
+++ b/hw/nvram/eeprom_at24c.c
@@ -116,31 +116,29 @@ int at24c_eeprom_send(I2CSlave *s, uint8_t data)
     return 0;
 }
 
-static
-int at24c_eeprom_init(I2CSlave *i2c)
+static void at24c_eeprom_realize(DeviceState *dev, Error **errp)
 {
-    EEPROMState *ee = AT24C_EE(i2c);
-
-    ee->mem = g_malloc0(ee->rsize);
+    EEPROMState *ee = AT24C_EE(dev);
 
     if (ee->blk) {
         int64_t len = blk_getlength(ee->blk);
 
         if (len != ee->rsize) {
-            ERR(TYPE_AT24C_EE " : Backing file size %lu != %u\n",
-                    (unsigned long)len, (unsigned)ee->rsize);
-            exit(1);
+            error_setg(errp, "%s: Backing file size %" PRId64 " != %u",
+                       TYPE_AT24C_EE, len, ee->rsize);
+            return;
         }
 
         if (blk_set_perm(ee->blk, BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE,
                          BLK_PERM_ALL, &error_fatal) < 0)
         {
-            ERR(TYPE_AT24C_EE
-                    " : Backing file incorrect permission\n");
-            exit(1);
+            error_setg(errp, "%s: Backing file incorrect permission",
+                       TYPE_AT24C_EE);
+            return;
         }
     }
-    return 0;
+
+    ee->mem = g_malloc0(ee->rsize);
 }
 
 static
@@ -178,7 +176,7 @@ void at24c_eeprom_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
 
-    k->init = &at24c_eeprom_init;
+    dc->realize = &at24c_eeprom_realize;
     k->event = &at24c_eeprom_event;
     k->recv = &at24c_eeprom_recv;
     k->send = &at24c_eeprom_send;
diff --git a/hw/pci-host/versatile.c b/hw/pci-host/versatile.c
index d0b02bdc47..7b19078c80 100644
--- a/hw/pci-host/versatile.c
+++ b/hw/pci-host/versatile.c
@@ -12,7 +12,6 @@
 #include "hw/pci/pci.h"
 #include "hw/pci/pci_bus.h"
 #include "hw/pci/pci_host.h"
-#include "exec/address-spaces.h"
 #include "qemu/log.h"
 
 /* Old and buggy versions of QEMU used the wrong mapping from
diff --git a/hw/ppc/ppc405_boards.c b/hw/ppc/ppc405_boards.c
index 0b658931ee..d301067d3b 100644
--- a/hw/ppc/ppc405_boards.c
+++ b/hw/ppc/ppc405_boards.c
@@ -37,7 +37,6 @@
 #include "qemu/log.h"
 #include "qemu/error-report.h"
 #include "hw/loader.h"
-#include "sysemu/blockdev.h"
 #include "exec/address-spaces.h"
 
 #define BIOS_FILENAME "ppc405_rom.bin"
diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
index a48e6e6fce..3dd23de71f 100644
--- a/hw/ppc/sam460ex.c
+++ b/hw/ppc/sam460ex.c
@@ -17,7 +17,6 @@
 #include "qemu/error-report.h"
 #include "qapi/error.h"
 #include "hw/hw.h"
-#include "sysemu/blockdev.h"
 #include "hw/boards.h"
 #include "sysemu/kvm.h"
 #include "kvm_ppc.h"
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 213f6f9599..2375cbee12 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -35,7 +35,6 @@
 #include "elf.h"
 #include "net/net.h"
 #include "sysemu/device_tree.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/cpus.h"
 #include "sysemu/hw_accel.h"
 #include "kvm_ppc.h"
diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
index a80cbdd7ee..b4bb90d50b 100644
--- a/hw/ppc/virtex_ml507.c
+++ b/hw/ppc/virtex_ml507.c
@@ -44,8 +44,6 @@
 #include "hw/ppc/ppc4xx.h"
 #include "ppc405.h"
 
-#include "sysemu/block-backend.h"
-
 #define EPAPR_MAGIC    (0x45504150)
 #define FLASH_SIZE     (16 * 1024 * 1024)
 
diff --git a/hw/riscv/riscv_htif.c b/hw/riscv/riscv_htif.c
index f73512941f..4f7b11dc37 100644
--- a/hw/riscv/riscv_htif.c
+++ b/hw/riscv/riscv_htif.c
@@ -29,7 +29,6 @@
 #include "chardev/char-fe.h"
 #include "hw/riscv/riscv_htif.h"
 #include "qemu/timer.h"
-#include "exec/address-spaces.h"
 #include "qemu/error-report.h"
 
 #define RISCV_DEBUG_HTIF 0
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 22df33b509..0a9bec484b 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -13,8 +13,6 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "hw/hw.h"
-#include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/kvm.h"
 #include "net/net.h"
diff --git a/hw/scsi/Makefile.objs b/hw/scsi/Makefile.objs
index b188f7242b..718b4c2a68 100644
--- a/hw/scsi/Makefile.objs
+++ b/hw/scsi/Makefile.objs
@@ -8,7 +8,7 @@ common-obj-$(CONFIG_ESP) += esp.o
 common-obj-$(CONFIG_ESP_PCI) += esp-pci.o
 obj-$(CONFIG_PSERIES) += spapr_vscsi.o
 
-ifeq ($(CONFIG_VIRTIO),y)
+ifeq ($(CONFIG_VIRTIO_SCSI),y)
 obj-y += virtio-scsi.o virtio-scsi-dataplane.o
 obj-$(CONFIG_VHOST_SCSI) += vhost-scsi-common.o vhost-scsi.o
 obj-$(CONFIG_VHOST_USER_SCSI) += vhost-scsi-common.o vhost-user-scsi.o
diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c
index 3f061f3f68..4176e871e1 100644
--- a/hw/scsi/mptsas.c
+++ b/hw/scsi/mptsas.c
@@ -26,7 +26,6 @@
 #include "hw/hw.h"
 #include "hw/pci/pci.h"
 #include "sysemu/dma.h"
-#include "sysemu/block-backend.h"
 #include "hw/pci/msi.h"
 #include "qemu/iov.h"
 #include "hw/scsi/scsi.h"
diff --git a/hw/scsi/scsi-generic.c b/hw/scsi/scsi-generic.c
index 381f04e339..03bce8ff39 100644
--- a/hw/scsi/scsi-generic.c
+++ b/hw/scsi/scsi-generic.c
@@ -17,7 +17,6 @@
 #include "qemu/error-report.h"
 #include "hw/scsi/scsi.h"
 #include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 
 #ifdef __linux__
 
diff --git a/hw/sd/pl181.c b/hw/sd/pl181.c
index 3ba1f7dd23..1cc94dbfdf 100644
--- a/hw/sd/pl181.c
+++ b/hw/sd/pl181.c
@@ -8,7 +8,6 @@
  */
 
 #include "qemu/osdep.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "hw/sysbus.h"
 #include "hw/sd/sd.h"
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index 63c44a4ee8..3017e5a95a 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -26,8 +26,6 @@
 #include "qemu/error-report.h"
 #include "qapi/error.h"
 #include "hw/hw.h"
-#include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 #include "sysemu/dma.h"
 #include "qemu/timer.h"
 #include "qemu/bitops.h"
diff --git a/hw/sd/ssi-sd.c b/hw/sd/ssi-sd.c
index ae04b6641b..96542ecd62 100644
--- a/hw/sd/ssi-sd.c
+++ b/hw/sd/ssi-sd.c
@@ -11,7 +11,6 @@
  */
 
 #include "qemu/osdep.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 #include "hw/ssi/ssi.h"
 #include "hw/sd/sd.h"
diff --git a/hw/sh4/r2d.c b/hw/sh4/r2d.c
index 6b01d6eed8..8fe8766eb9 100644
--- a/hw/sh4/r2d.c
+++ b/hw/sh4/r2d.c
@@ -40,7 +40,6 @@
 #include "hw/loader.h"
 #include "hw/usb.h"
 #include "hw/block/flash.h"
-#include "sysemu/block-backend.h"
 #include "exec/address-spaces.h"
 
 #define FLASH_BASE 0x00000000
diff --git a/hw/sh4/sh7750.c b/hw/sh4/sh7750.c
index 5a7d47d31e..2dc07a904b 100644
--- a/hw/sh4/sh7750.c
+++ b/hw/sh4/sh7750.c
@@ -31,7 +31,6 @@
 #include "hw/sh4/sh_intc.h"
 #include "cpu.h"
 #include "exec/exec-all.h"
-#include "exec/address-spaces.h"
 
 #define NB_DEVICES 4
 
diff --git a/hw/timer/sh_timer.c b/hw/timer/sh_timer.c
index 9afb2d048c..5f8736cf10 100644
--- a/hw/timer/sh_timer.c
+++ b/hw/timer/sh_timer.c
@@ -13,7 +13,6 @@
 #include "hw/sh4/sh.h"
 #include "qemu/timer.h"
 #include "qemu/main-loop.h"
-#include "exec/address-spaces.h"
 #include "hw/ptimer.h"
 
 //#define DEBUG_TIMER
diff --git a/hw/timer/twl92230.c b/hw/timer/twl92230.c
index ef116c636c..3b43b46199 100644
--- a/hw/timer/twl92230.c
+++ b/hw/timer/twl92230.c
@@ -853,10 +853,9 @@ static const VMStateDescription vmstate_menelaus = {
     }
 };
 
-static int twl92230_init(I2CSlave *i2c)
+static void twl92230_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(i2c);
-    MenelausState *s = TWL92230(i2c);
+    MenelausState *s = TWL92230(dev);
 
     s->rtc.hz_tm = timer_new_ms(rtc_clock, menelaus_rtc_hz, s);
     /* Three output pins plus one interrupt pin.  */
@@ -865,9 +864,7 @@ static int twl92230_init(I2CSlave *i2c)
     /* Three input pins plus one power-button pin.  */
     qdev_init_gpio_in(dev, menelaus_gpio_set, 4);
 
-    menelaus_reset(i2c);
-
-    return 0;
+    menelaus_reset(I2C_SLAVE(dev));
 }
 
 static void twl92230_class_init(ObjectClass *klass, void *data)
@@ -875,7 +872,7 @@ static void twl92230_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
 
-    sc->init = twl92230_init;
+    dc->realize = twl92230_realize;
     sc->event = menelaus_event;
     sc->recv = menelaus_rx;
     sc->send = menelaus_tx;
diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c
index b56c75a73a..d02acda945 100644
--- a/hw/usb/dev-storage.c
+++ b/hw/usb/dev-storage.c
@@ -20,7 +20,6 @@
 #include "monitor/monitor.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/block-backend.h"
-#include "sysemu/blockdev.h"
 #include "qapi/visitor.h"
 #include "qemu/cutils.h"
 
diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index e67392c5f9..76e4e8c652 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -22,6 +22,7 @@
 #include "hw/vfio/vfio-common.h"
 #include "hw/s390x/s390-ccw.h"
 #include "hw/s390x/ccw-device.h"
+#include "exec/address-spaces.h"
 #include "qemu/error-report.h"
 
 #define TYPE_VFIO_CCW "vfio-ccw"
diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c
index 5c921c27ba..57c4a0ee2b 100644
--- a/hw/vfio/platform.c
+++ b/hw/vfio/platform.c
@@ -24,6 +24,7 @@
 #include "qemu/range.h"
 #include "sysemu/sysemu.h"
 #include "exec/memory.h"
+#include "exec/address-spaces.h"
 #include "qemu/queue.h"
 #include "hw/sysbus.h"
 #include "trace.h"
diff --git a/hw/virtio/Makefile.objs b/hw/virtio/Makefile.objs
index 765d363c1f..1b2799cfd8 100644
--- a/hw/virtio/Makefile.objs
+++ b/hw/virtio/Makefile.objs
@@ -1,15 +1,17 @@
 ifeq ($(CONFIG_VIRTIO),y)
-common-obj-y += virtio-rng.o
-common-obj-$(CONFIG_VIRTIO_PCI) += virtio-pci.o
 common-obj-y += virtio-bus.o
-common-obj-y += virtio-mmio.o
+obj-y += virtio.o
+
+common-obj-$(CONFIG_VIRTIO_RNG) += virtio-rng.o
+common-obj-$(CONFIG_VIRTIO_PCI) += virtio-pci.o
+common-obj-$(CONFIG_VIRTIO_MMIO) += virtio-mmio.o
+obj-$(CONFIG_VIRTIO_BALLOON) += virtio-balloon.o
+obj-$(CONFIG_VIRTIO_CRYPTO) += virtio-crypto.o
+obj-$(call land,$(CONFIG_VIRTIO_CRYPTO),$(CONFIG_VIRTIO_PCI)) += virtio-crypto-pci.o
 
-obj-y += virtio.o virtio-balloon.o 
 obj-$(CONFIG_LINUX) += vhost.o vhost-backend.o vhost-user.o
 obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock.o
-obj-y += virtio-crypto.o
-obj-$(CONFIG_VIRTIO_PCI) += virtio-crypto-pci.o
 endif
 
-common-obj-$(call lnot,$(CONFIG_LINUX)) += vhost-stub.o
+common-obj-$(call lnot,$(call land,$(CONFIG_VIRTIO),$(CONFIG_LINUX))) += vhost-stub.o
 common-obj-$(CONFIG_ALL) += vhost-stub.o
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 5eb0c323ca..3a01fe90f0 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -32,7 +32,6 @@
 #include "hw/pci/msix.h"
 #include "hw/loader.h"
 #include "sysemu/kvm.h"
-#include "sysemu/block-backend.h"
 #include "virtio-pci.h"
 #include "qemu/range.h"
 #include "hw/virtio/virtio-bus.h"
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 1debb0147b..d4e4d98b59 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -123,11 +123,22 @@ static void virtio_free_region_cache(VRingMemoryRegionCaches *caches)
     g_free(caches);
 }
 
+static void virtio_virtqueue_reset_region_cache(struct VirtQueue *vq)
+{
+    VRingMemoryRegionCaches *caches;
+
+    caches = atomic_read(&vq->vring.caches);
+    atomic_rcu_set(&vq->vring.caches, NULL);
+    if (caches) {
+        call_rcu(caches, virtio_free_region_cache, rcu);
+    }
+}
+
 static void virtio_init_region_cache(VirtIODevice *vdev, int n)
 {
     VirtQueue *vq = &vdev->vq[n];
     VRingMemoryRegionCaches *old = vq->vring.caches;
-    VRingMemoryRegionCaches *new;
+    VRingMemoryRegionCaches *new = NULL;
     hwaddr addr, size;
     int event_size;
     int64_t len;
@@ -136,7 +147,7 @@ static void virtio_init_region_cache(VirtIODevice *vdev, int n)
 
     addr = vq->vring.desc;
     if (!addr) {
-        return;
+        goto out_no_cache;
     }
     new = g_new0(VRingMemoryRegionCaches, 1);
     size = virtio_queue_get_desc_size(vdev, n);
@@ -170,11 +181,14 @@ static void virtio_init_region_cache(VirtIODevice *vdev, int n)
     return;
 
 err_avail:
-    address_space_cache_destroy(&new->used);
+    address_space_cache_destroy(&new->avail);
 err_used:
-    address_space_cache_destroy(&new->desc);
+    address_space_cache_destroy(&new->used);
 err_desc:
+    address_space_cache_destroy(&new->desc);
+out_no_cache:
     g_free(new);
+    virtio_virtqueue_reset_region_cache(vq);
 }
 
 /* virt queue functions */
@@ -1168,17 +1182,6 @@ static enum virtio_device_endian virtio_current_cpu_endian(void)
     }
 }
 
-static void virtio_virtqueue_reset_region_cache(struct VirtQueue *vq)
-{
-    VRingMemoryRegionCaches *caches;
-
-    caches = atomic_read(&vq->vring.caches);
-    atomic_rcu_set(&vq->vring.caches, NULL);
-    if (caches) {
-        call_rcu(caches, virtio_free_region_cache, rcu);
-    }
-}
-
 void virtio_reset(void *opaque)
 {
     VirtIODevice *vdev = opaque;
diff --git a/hw/xen/xen_devconfig.c b/hw/xen/xen_devconfig.c
index fac9d3fcdc..aebc19bd71 100644
--- a/hw/xen/xen_devconfig.c
+++ b/hw/xen/xen_devconfig.c
@@ -1,7 +1,6 @@
 #include "qemu/osdep.h"
 #include "hw/xen/xen_backend.h"
 #include "qemu/option.h"
-#include "sysemu/block-backend.h"
 #include "sysemu/blockdev.h"
 
 /* ------------------------------------------------------------- */
diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
index 63734c70ec..5dc13034f9 100644
--- a/hw/xtensa/xtfpga.c
+++ b/hw/xtensa/xtfpga.c
@@ -38,7 +38,6 @@
 #include "net/net.h"
 #include "hw/sysbus.h"
 #include "hw/block/flash.h"
-#include "sysemu/block-backend.h"
 #include "chardev/char.h"
 #include "sysemu/device_tree.h"
 #include "qemu/error-report.h"