Merge remote-tracking branch 'remotes/elmarco/tags/machine-props-pull-request' into staging

Generalize machine compatibility properties

During "[PATCH v2 05/10] qom/globals: generalize
object_property_set_globals()" review, Eduardo suggested to rework the
GlobalProperty handling, so that -global is limited to QDev only and
we avoid mixing the machine compats and the user-provided -global
properties (instead of generalizing -global to various object kinds,
like I proposed in v2).

"qdev: do not mix compat props with global props" patch decouples a
bit user-provided -global from machine compat properties. This allows
to get rid of "user_provided" and "errp" fields in following patches.

A new compat property "x-use-canonical-path-for-ramblock-id" is added
to hostmem for legacy canonical path names, set to true for -file and
-memfd with qemu < 4.0.

(this series was initially titled "[PATCH v2 00/10] hostmem: use
object "id" for memory region name with >= 3.1", but its focus is more
in refactoring the global and compatilibity properties handling now)

# gpg: Signature made Mon 07 Jan 2019 12:22:43 GMT
# gpg:                using RSA key DAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/machine-props-pull-request: (28 commits)
  hostmem: use object id for memory region name with >= 4.0
  arm: replace instance_post_init()
  qdev-props: call object_apply_global_props()
  qdev-props: remove errp from GlobalProperty
  qdev-props: convert global_props to GPtrArray
  qdev: all globals are now user-provided
  qdev: make a separate helper function to apply compat properties
  compat: remove remaining PC_COMPAT macros
  include: remove compat.h
  compat: replace PC_COMPAT_2_1 & HW_COMPAT_2_1 macros
  compat: replace PC_COMPAT_2_2 & HW_COMPAT_2_2 macros
  compat: replace PC_COMPAT_2_3 & HW_COMPAT_2_3 macros
  compat: replace PC_COMPAT_2_4 & HW_COMPAT_2_4 macros
  compat: replace PC_COMPAT_2_5 & HW_COMPAT_2_5 macros
  compat: replace PC_COMPAT_2_6 & HW_COMPAT_2_6 macros
  compat: replace PC_COMPAT_2_7 & HW_COMPAT_2_7 macros
  compat: replace PC_COMPAT_2_8 & HW_COMPAT_2_8 macros
  compat: replace PC_COMPAT_2_9 & HW_COMPAT_2_9 macros
  compat: replace PC_COMPAT_2_10 & HW_COMPAT_2_10 macros
  compat: replace PC_COMPAT_2_11 & HW_COMPAT_2_11 macros
  ...

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

7 files changed, 109 insertions, 971 deletions

diff --git a/include/hw/boards.h b/include/hw/boards.h
index 362384815e..02f114085f 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -69,7 +69,6 @@ int machine_kvm_shadow_mem(MachineState *machine);
 int machine_phandle_start(MachineState *machine);
 bool machine_dump_guest_core(MachineState *machine);
 bool machine_mem_merge(MachineState *machine);
-void machine_register_compat_props(MachineState *machine);
 HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine);
 void machine_set_cpu_numa_node(MachineState *machine,
                                const CpuInstanceProperties *props,
@@ -191,7 +190,7 @@ struct MachineClass {
     const char *default_machine_opts;
     const char *default_boot_order;
     const char *default_display;
-    GArray *compat_props;
+    GPtrArray *compat_props;
     const char *hw_version;
     ram_addr_t default_ram_size;
     const char *default_cpu_type;
@@ -289,20 +288,46 @@ struct MachineState {
     } \
     type_init(machine_initfn##_register_types)
 
-#define SET_MACHINE_COMPAT(m, COMPAT) \
-    do {                              \
-        int i;                        \
-        static GlobalProperty props[] = {       \
-            COMPAT                              \
-            { /* end of list */ }               \
-        };                                      \
-        if (!m->compat_props) { \
-            m->compat_props = g_array_new(false, false, sizeof(void *)); \
-        } \
-        for (i = 0; props[i].driver != NULL; i++) {    \
-            GlobalProperty *prop = &props[i];          \
-            g_array_append_val(m->compat_props, prop); \
-        }                                              \
-    } while (0)
+extern GlobalProperty hw_compat_3_1[];
+extern const size_t hw_compat_3_1_len;
+
+extern GlobalProperty hw_compat_3_0[];
+extern const size_t hw_compat_3_0_len;
+
+extern GlobalProperty hw_compat_2_12[];
+extern const size_t hw_compat_2_12_len;
+
+extern GlobalProperty hw_compat_2_11[];
+extern const size_t hw_compat_2_11_len;
+
+extern GlobalProperty hw_compat_2_10[];
+extern const size_t hw_compat_2_10_len;
+
+extern GlobalProperty hw_compat_2_9[];
+extern const size_t hw_compat_2_9_len;
+
+extern GlobalProperty hw_compat_2_8[];
+extern const size_t hw_compat_2_8_len;
+
+extern GlobalProperty hw_compat_2_7[];
+extern const size_t hw_compat_2_7_len;
+
+extern GlobalProperty hw_compat_2_6[];
+extern const size_t hw_compat_2_6_len;
+
+extern GlobalProperty hw_compat_2_5[];
+extern const size_t hw_compat_2_5_len;
+
+extern GlobalProperty hw_compat_2_4[];
+extern const size_t hw_compat_2_4_len;
+
+extern GlobalProperty hw_compat_2_3[];
+extern const size_t hw_compat_2_3_len;
+
+extern GlobalProperty hw_compat_2_2[];
+extern const size_t hw_compat_2_2_len;
+
+extern GlobalProperty hw_compat_2_1[];
+extern const size_t hw_compat_2_1_len;
 
 #endif
diff --git a/include/hw/compat.h b/include/hw/compat.h
deleted file mode 100644
index 3ca85b037c..0000000000
--- a/include/hw/compat.h
+++ /dev/null
@@ -1,299 +0,0 @@
-#ifndef HW_COMPAT_H
-#define HW_COMPAT_H
-
-#define HW_COMPAT_3_1 \
-    {\
-        .driver   = "pcie-root-port",\
-        .property = "x-speed",\
-        .value    = "2_5",\
-    },{\
-        .driver   = "pcie-root-port",\
-        .property = "x-width",\
-        .value    = "1",\
-    },
-
-#define HW_COMPAT_3_0 \
-    /* empty */
-
-#define HW_COMPAT_2_12 \
-    {\
-        .driver   = "migration",\
-        .property = "decompress-error-check",\
-        .value    = "off",\
-    },{\
-        .driver   = "hda-audio",\
-        .property = "use-timer",\
-        .value    = "false",\
-    },{\
-        .driver   = "cirrus-vga",\
-        .property = "global-vmstate",\
-        .value    = "true",\
-    },{\
-        .driver   = "VGA",\
-        .property = "global-vmstate",\
-        .value    = "true",\
-    },{\
-        .driver   = "vmware-svga",\
-        .property = "global-vmstate",\
-        .value    = "true",\
-    },{\
-        .driver   = "qxl-vga",\
-        .property = "global-vmstate",\
-        .value    = "true",\
-    },
-
-#define HW_COMPAT_2_11 \
-    {\
-        .driver   = "hpet",\
-        .property = "hpet-offset-saved",\
-        .value    = "false",\
-    },{\
-        .driver   = "virtio-blk-pci",\
-        .property = "vectors",\
-        .value    = "2",\
-    },{\
-        .driver   = "vhost-user-blk-pci",\
-        .property = "vectors",\
-        .value    = "2",\
-    },{\
-        .driver   = "e1000",\
-        .property = "migrate_tso_props",\
-        .value    = "off",\
-    },
-
-#define HW_COMPAT_2_10 \
-    {\
-        .driver   = "virtio-mouse-device",\
-        .property = "wheel-axis",\
-        .value    = "false",\
-    },{\
-        .driver   = "virtio-tablet-device",\
-        .property = "wheel-axis",\
-        .value    = "false",\
-    },
-
-#define HW_COMPAT_2_9 \
-    {\
-        .driver   = "pci-bridge",\
-        .property = "shpc",\
-        .value    = "off",\
-    },{\
-        .driver   = "intel-iommu",\
-        .property = "pt",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-net-device",\
-        .property = "x-mtu-bypass-backend",\
-        .value    = "off",\
-    },{\
-        .driver   = "pcie-root-port",\
-        .property = "x-migrate-msix",\
-        .value    = "false",\
-    },
-
-#define HW_COMPAT_2_8 \
-    {\
-        .driver   = "fw_cfg_mem",\
-        .property = "x-file-slots",\
-        .value    = stringify(0x10),\
-    },{\
-        .driver   = "fw_cfg_io",\
-        .property = "x-file-slots",\
-        .value    = stringify(0x10),\
-    },{\
-        .driver   = "pflash_cfi01",\
-        .property = "old-multiple-chip-handling",\
-        .value    = "on",\
-    },{\
-        .driver   = "pci-bridge",\
-        .property = "shpc",\
-        .value    = "on",\
-    },{\
-        .driver   = TYPE_PCI_DEVICE,\
-        .property = "x-pcie-extcap-init",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "x-pcie-deverr-init",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "x-pcie-lnkctl-init",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "x-pcie-pm-init",\
-        .value    = "off",\
-    },{\
-        .driver   = "cirrus-vga",\
-        .property = "vgamem_mb",\
-        .value    = "8",\
-    },{\
-        .driver   = "isa-cirrus-vga",\
-        .property = "vgamem_mb",\
-        .value    = "8",\
-    },
-
-#define HW_COMPAT_2_7 \
-    {\
-        .driver   = "virtio-pci",\
-        .property = "page-per-vq",\
-        .value    = "on",\
-    },{\
-        .driver   = "virtio-serial-device",\
-        .property = "emergency-write",\
-        .value    = "off",\
-    },{\
-        .driver   = "ioapic",\
-        .property = "version",\
-        .value    = "0x11",\
-    },{\
-        .driver   = "intel-iommu",\
-        .property = "x-buggy-eim",\
-        .value    = "true",\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "x-ignore-backend-features",\
-        .value    = "on",\
-    },
-
-#define HW_COMPAT_2_6 \
-    {\
-        .driver   = "virtio-mmio",\
-        .property = "format_transport_address",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "disable-modern",\
-        .value    = "on",\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "disable-legacy",\
-        .value    = "off",\
-    },
-
-#define HW_COMPAT_2_5 \
-    {\
-        .driver   = "isa-fdc",\
-        .property = "fallback",\
-        .value    = "144",\
-    },{\
-        .driver   = "pvscsi",\
-        .property = "x-old-pci-configuration",\
-        .value    = "on",\
-    },{\
-        .driver   = "pvscsi",\
-        .property = "x-disable-pcie",\
-        .value    = "on",\
-    },\
-    {\
-        .driver   = "vmxnet3",\
-        .property = "x-old-msi-offsets",\
-        .value    = "on",\
-    },{\
-        .driver   = "vmxnet3",\
-        .property = "x-disable-pcie",\
-        .value    = "on",\
-    },
-
-#define HW_COMPAT_2_4 \
-    {\
-        .driver   = "virtio-blk-device",\
-        .property = "scsi",\
-        .value    = "true",\
-    },{\
-        .driver   = "e1000",\
-        .property = "extra_mac_registers",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "x-disable-pcie",\
-        .value    = "on",\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "migrate-extra",\
-        .value    = "off",\
-    },{\
-        .driver   = "fw_cfg_mem",\
-        .property = "dma_enabled",\
-        .value    = "off",\
-    },{\
-        .driver   = "fw_cfg_io",\
-        .property = "dma_enabled",\
-        .value    = "off",\
-    },
-
-#define HW_COMPAT_2_3 \
-    {\
-        .driver   = "virtio-blk-pci",\
-        .property = "any_layout",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-balloon-pci",\
-        .property = "any_layout",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-serial-pci",\
-        .property = "any_layout",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-9p-pci",\
-        .property = "any_layout",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-rng-pci",\
-        .property = "any_layout",\
-        .value    = "off",\
-    },{\
-        .driver   = TYPE_PCI_DEVICE,\
-        .property = "x-pcie-lnksta-dllla",\
-        .value    = "off",\
-    },{\
-        .driver   = "migration",\
-        .property = "send-configuration",\
-        .value    = "off",\
-    },{\
-        .driver   = "migration",\
-        .property = "send-section-footer",\
-        .value    = "off",\
-    },{\
-        .driver   = "migration",\
-        .property = "store-global-state",\
-        .value    = "off",\
-    },
-
-#define HW_COMPAT_2_2 \
-    /* empty */
-
-#define HW_COMPAT_2_1 \
-    {\
-        .driver   = "intel-hda",\
-        .property = "old_msi_addr",\
-        .value    = "on",\
-    },{\
-        .driver   = "VGA",\
-        .property = "qemu-extended-regs",\
-        .value    = "off",\
-    },{\
-        .driver   = "secondary-vga",\
-        .property = "qemu-extended-regs",\
-        .value    = "off",\
-    },{\
-        .driver   = "virtio-scsi-pci",\
-        .property = "any_layout",\
-        .value    = "off",\
-    },{\
-        .driver   = "usb-mouse",\
-        .property = "usb_version",\
-        .value    = stringify(1),\
-    },{\
-        .driver   = "usb-kbd",\
-        .property = "usb_version",\
-        .value    = stringify(1),\
-    },{\
-        .driver   = "virtio-pci",\
-        .property = "virtio-pci-bus-master-bug-migration",\
-        .value    = "on",\
-    },
-
-#endif /* HW_COMPAT_H */
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index c7c0c944e8..84720bede9 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -13,7 +13,6 @@
 #include "qemu/bitmap.h"
 #include "sysemu/sysemu.h"
 #include "hw/pci/pci.h"
-#include "hw/compat.h"
 #include "hw/mem/pc-dimm.h"
 #include "hw/mem/nvdimm.h"
 #include "hw/acpi/acpi_dev_interface.h"
@@ -294,171 +293,62 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t);
 int e820_get_num_entries(void);
 bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
 
-#define PC_COMPAT_3_1 \
-    HW_COMPAT_3_1 \
-    {\
-        .driver   = "intel-iommu",\
-        .property = "dma-drain",\
-        .value    = "off",\
-    },
+extern GlobalProperty pc_compat_3_1[];
+extern const size_t pc_compat_3_1_len;
 
-#define PC_COMPAT_3_0 \
-    HW_COMPAT_3_0 \
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "x-hv-synic-kvm-only",\
-        .value    = "on",\
-    },{\
-        .driver   = "Skylake-Server" "-" TYPE_X86_CPU,\
-        .property = "pku",\
-        .value    = "off",\
-    },{\
-        .driver   = "Skylake-Server-IBRS" "-" TYPE_X86_CPU,\
-        .property = "pku",\
-        .value    = "off",\
-    },
+extern GlobalProperty pc_compat_3_0[];
+extern const size_t pc_compat_3_0_len;
 
-#define PC_COMPAT_2_12 \
-    HW_COMPAT_2_12 \
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "legacy-cache",\
-        .value    = "on",\
-    },{\
-        .driver   = TYPE_X86_CPU,\
-        .property = "topoext",\
-        .value    = "off",\
-    },{\
-        .driver   = "EPYC-" TYPE_X86_CPU,\
-        .property = "xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "EPYC-IBPB-" TYPE_X86_CPU,\
-        .property = "xlevel",\
-        .value    = stringify(0x8000000a),\
-    },
+extern GlobalProperty pc_compat_2_12[];
+extern const size_t pc_compat_2_12_len;
 
-#define PC_COMPAT_2_11 \
-    HW_COMPAT_2_11 \
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "x-migrate-smi-count",\
-        .value    = "off",\
-    },{\
-        .driver   = "Skylake-Server" "-" TYPE_X86_CPU,\
-        .property = "clflushopt",\
-        .value    = "off",\
-    },
+extern GlobalProperty pc_compat_2_11[];
+extern const size_t pc_compat_2_11_len;
 
-#define PC_COMPAT_2_10 \
-    HW_COMPAT_2_10 \
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "x-hv-max-vps",\
-        .value    = "0x40",\
-    },{\
-        .driver   = "i440FX-pcihost",\
-        .property = "x-pci-hole64-fix",\
-        .value    = "off",\
-    },{\
-        .driver   = "q35-pcihost",\
-        .property = "x-pci-hole64-fix",\
-        .value    = "off",\
-    },
+extern GlobalProperty pc_compat_2_10[];
+extern const size_t pc_compat_2_10_len;
 
-#define PC_COMPAT_2_9 \
-    HW_COMPAT_2_9 \
-    {\
-        .driver   = "mch",\
-        .property = "extended-tseg-mbytes",\
-        .value    = stringify(0),\
-    },\
+extern GlobalProperty pc_compat_2_9[];
+extern const size_t pc_compat_2_9_len;
 
-#define PC_COMPAT_2_8 \
-    HW_COMPAT_2_8 \
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "tcg-cpuid",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "kvmclock",\
-        .property = "x-mach-use-reliable-get-clock",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "ICH9-LPC",\
-        .property = "x-smi-broadcast",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "vmware-cpuid-freq",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "Haswell-" TYPE_X86_CPU,\
-        .property = "stepping",\
-        .value    = "1",\
-    },
+extern GlobalProperty pc_compat_2_8[];
+extern const size_t pc_compat_2_8_len;
 
-#define PC_COMPAT_2_7 \
-    HW_COMPAT_2_7 \
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "l3-cache",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "full-cpuid-auto-level",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "Opteron_G3" "-" TYPE_X86_CPU,\
-        .property = "family",\
-        .value    = "15",\
-    },\
-    {\
-        .driver   = "Opteron_G3" "-" TYPE_X86_CPU,\
-        .property = "model",\
-        .value    = "6",\
-    },\
-    {\
-        .driver   = "Opteron_G3" "-" TYPE_X86_CPU,\
-        .property = "stepping",\
-        .value    = "1",\
-    },\
-    {\
-        .driver   = "isa-pcspk",\
-        .property = "migrate",\
-        .value    = "off",\
-    },
+extern GlobalProperty pc_compat_2_7[];
+extern const size_t pc_compat_2_7_len;
 
-#define PC_COMPAT_2_6 \
-    HW_COMPAT_2_6 \
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "cpuid-0xb",\
-        .value    = "off",\
-    },{\
-        .driver   = "vmxnet3",\
-        .property = "romfile",\
-        .value    = "",\
-    },\
-    {\
-        .driver = TYPE_X86_CPU,\
-        .property = "fill-mtrr-mask",\
-        .value = "off",\
-    },\
-    {\
-        .driver   = "apic-common",\
-        .property = "legacy-instance-id",\
-        .value    = "on",\
-    },
+extern GlobalProperty pc_compat_2_6[];
+extern const size_t pc_compat_2_6_len;
 
-#define PC_COMPAT_2_5 \
-    HW_COMPAT_2_5
+extern GlobalProperty pc_compat_2_5[];
+extern const size_t pc_compat_2_5_len;
+
+extern GlobalProperty pc_compat_2_4[];
+extern const size_t pc_compat_2_4_len;
+
+extern GlobalProperty pc_compat_2_3[];
+extern const size_t pc_compat_2_3_len;
+
+extern GlobalProperty pc_compat_2_2[];
+extern const size_t pc_compat_2_2_len;
+
+extern GlobalProperty pc_compat_2_1[];
+extern const size_t pc_compat_2_1_len;
+
+extern GlobalProperty pc_compat_2_0[];
+extern const size_t pc_compat_2_0_len;
+
+extern GlobalProperty pc_compat_1_7[];
+extern const size_t pc_compat_1_7_len;
+
+extern GlobalProperty pc_compat_1_6[];
+extern const size_t pc_compat_1_6_len;
+
+extern GlobalProperty pc_compat_1_5[];
+extern const size_t pc_compat_1_5_len;
+
+extern GlobalProperty pc_compat_1_4[];
+extern const size_t pc_compat_1_4_len;
 
 /* Helper for setting model-id for CPU models that changed model-id
  * depending on QEMU versions up to QEMU 2.4.
@@ -480,491 +370,6 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
         .value    = "QEMU Virtual CPU version " v,\
     },
 
-#define PC_COMPAT_2_4 \
-    HW_COMPAT_2_4 \
-    PC_CPU_MODEL_IDS("2.4.0") \
-    {\
-        .driver   = "Haswell-" TYPE_X86_CPU,\
-        .property = "abm",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "Haswell-noTSX-" TYPE_X86_CPU,\
-        .property = "abm",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "Broadwell-" TYPE_X86_CPU,\
-        .property = "abm",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "Broadwell-noTSX-" TYPE_X86_CPU,\
-        .property = "abm",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "host" "-" TYPE_X86_CPU,\
-        .property = "host-cache-info",\
-        .value    = "on",\
-    },\
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "check",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "qemu64" "-" TYPE_X86_CPU,\
-        .property = "sse4a",\
-        .value    = "on",\
-    },\
-    {\
-        .driver   = "qemu64" "-" TYPE_X86_CPU,\
-        .property = "abm",\
-        .value    = "on",\
-    },\
-    {\
-        .driver   = "qemu64" "-" TYPE_X86_CPU,\
-        .property = "popcnt",\
-        .value    = "on",\
-    },\
-    {\
-        .driver   = "qemu32" "-" TYPE_X86_CPU,\
-        .property = "popcnt",\
-        .value    = "on",\
-    },{\
-        .driver   = "Opteron_G2" "-" TYPE_X86_CPU,\
-        .property = "rdtscp",\
-        .value    = "on",\
-    },{\
-        .driver   = "Opteron_G3" "-" TYPE_X86_CPU,\
-        .property = "rdtscp",\
-        .value    = "on",\
-    },{\
-        .driver   = "Opteron_G4" "-" TYPE_X86_CPU,\
-        .property = "rdtscp",\
-        .value    = "on",\
-    },{\
-        .driver   = "Opteron_G5" "-" TYPE_X86_CPU,\
-        .property = "rdtscp",\
-        .value    = "on",\
-    },
-
-
-#define PC_COMPAT_2_3 \
-    HW_COMPAT_2_3 \
-    PC_CPU_MODEL_IDS("2.3.0") \
-    {\
-        .driver   = TYPE_X86_CPU,\
-        .property = "arat",\
-        .value    = "off",\
-    },{\
-        .driver   = "qemu64" "-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(4),\
-    },{\
-        .driver   = "kvm64" "-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(5),\
-    },{\
-        .driver   = "pentium3" "-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(2),\
-    },{\
-        .driver   = "n270" "-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(5),\
-    },{\
-        .driver   = "Conroe" "-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(4),\
-    },{\
-        .driver   = "Penryn" "-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(4),\
-    },{\
-        .driver   = "Nehalem" "-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(4),\
-    },{\
-        .driver   = "n270" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "Penryn" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "Conroe" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "Nehalem" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "Westmere" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "SandyBridge" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "IvyBridge" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "Haswell" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "Haswell-noTSX" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "Broadwell" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver   = "Broadwell-noTSX" "-" TYPE_X86_CPU,\
-        .property = "min-xlevel",\
-        .value    = stringify(0x8000000a),\
-    },{\
-        .driver = TYPE_X86_CPU,\
-        .property = "kvm-no-smi-migration",\
-        .value    = "on",\
-    },
-
-#define PC_COMPAT_2_2 \
-    HW_COMPAT_2_2 \
-    PC_CPU_MODEL_IDS("2.2.0") \
-    {\
-        .driver = "kvm64" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "kvm32" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Conroe" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Penryn" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Nehalem" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Westmere" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "SandyBridge" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Haswell" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Broadwell" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Opteron_G1" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Opteron_G2" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Opteron_G3" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Opteron_G4" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Opteron_G5" "-" TYPE_X86_CPU,\
-        .property = "vme",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Haswell" "-" TYPE_X86_CPU,\
-        .property = "f16c",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Haswell" "-" TYPE_X86_CPU,\
-        .property = "rdrand",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Broadwell" "-" TYPE_X86_CPU,\
-        .property = "f16c",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Broadwell" "-" TYPE_X86_CPU,\
-        .property = "rdrand",\
-        .value = "off",\
-    },
-
-#define PC_COMPAT_2_1 \
-    HW_COMPAT_2_1 \
-    PC_CPU_MODEL_IDS("2.1.0") \
-    {\
-        .driver = "coreduo" "-" TYPE_X86_CPU,\
-        .property = "vmx",\
-        .value = "on",\
-    },\
-    {\
-        .driver = "core2duo" "-" TYPE_X86_CPU,\
-        .property = "vmx",\
-        .value = "on",\
-    },
-
-#define PC_COMPAT_2_0 \
-    PC_CPU_MODEL_IDS("2.0.0") \
-    {\
-        .driver   = "virtio-scsi-pci",\
-        .property = "any_layout",\
-        .value    = "off",\
-    },{\
-        .driver   = "PIIX4_PM",\
-        .property = "memory-hotplug-support",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "apic",\
-        .property = "version",\
-        .value    = stringify(0x11),\
-    },\
-    {\
-        .driver   = "nec-usb-xhci",\
-        .property = "superspeed-ports-first",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "nec-usb-xhci",\
-        .property = "force-pcie-endcap",\
-        .value    = "on",\
-    },\
-    {\
-        .driver   = "pci-serial",\
-        .property = "prog_if",\
-        .value    = stringify(0),\
-    },\
-    {\
-        .driver   = "pci-serial-2x",\
-        .property = "prog_if",\
-        .value    = stringify(0),\
-    },\
-    {\
-        .driver   = "pci-serial-4x",\
-        .property = "prog_if",\
-        .value    = stringify(0),\
-    },\
-    {\
-        .driver   = "virtio-net-pci",\
-        .property = "guest_announce",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "ICH9-LPC",\
-        .property = "memory-hotplug-support",\
-        .value    = "off",\
-    },{\
-        .driver   = "xio3130-downstream",\
-        .property = COMPAT_PROP_PCP,\
-        .value    = "off",\
-    },{\
-        .driver   = "ioh3420",\
-        .property = COMPAT_PROP_PCP,\
-        .value    = "off",\
-    },
-
-#define PC_COMPAT_1_7 \
-    PC_CPU_MODEL_IDS("1.7.0") \
-    {\
-        .driver   = TYPE_USB_DEVICE,\
-        .property = "msos-desc",\
-        .value    = "no",\
-    },\
-    {\
-        .driver   = "PIIX4_PM",\
-        .property = "acpi-pci-hotplug-with-bridge-support",\
-        .value    = "off",\
-    },\
-    {\
-        .driver   = "hpet",\
-        .property = HPET_INTCAP,\
-        .value    = stringify(4),\
-    },
-
-#define PC_COMPAT_1_6 \
-    PC_CPU_MODEL_IDS("1.6.0") \
-    {\
-        .driver   = "e1000",\
-        .property = "mitigation",\
-        .value    = "off",\
-    },{\
-        .driver   = "qemu64-" TYPE_X86_CPU,\
-        .property = "model",\
-        .value    = stringify(2),\
-    },{\
-        .driver   = "qemu32-" TYPE_X86_CPU,\
-        .property = "model",\
-        .value    = stringify(3),\
-    },{\
-        .driver   = "i440FX-pcihost",\
-        .property = "short_root_bus",\
-        .value    = stringify(1),\
-    },{\
-        .driver   = "q35-pcihost",\
-        .property = "short_root_bus",\
-        .value    = stringify(1),\
-    },
-
-#define PC_COMPAT_1_5 \
-    PC_CPU_MODEL_IDS("1.5.0") \
-    {\
-        .driver   = "Conroe-" TYPE_X86_CPU,\
-        .property = "model",\
-        .value    = stringify(2),\
-    },{\
-        .driver   = "Conroe-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(2),\
-    },{\
-        .driver   = "Penryn-" TYPE_X86_CPU,\
-        .property = "model",\
-        .value    = stringify(2),\
-    },{\
-        .driver   = "Penryn-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(2),\
-    },{\
-        .driver   = "Nehalem-" TYPE_X86_CPU,\
-        .property = "model",\
-        .value    = stringify(2),\
-    },{\
-        .driver   = "Nehalem-" TYPE_X86_CPU,\
-        .property = "min-level",\
-        .value    = stringify(2),\
-    },{\
-        .driver   = "virtio-net-pci",\
-        .property = "any_layout",\
-        .value    = "off",\
-    },{\
-        .driver = TYPE_X86_CPU,\
-        .property = "pmu",\
-        .value = "on",\
-    },{\
-        .driver   = "i440FX-pcihost",\
-        .property = "short_root_bus",\
-        .value    = stringify(0),\
-    },{\
-        .driver   = "q35-pcihost",\
-        .property = "short_root_bus",\
-        .value    = stringify(0),\
-    },
-
-#define PC_COMPAT_1_4 \
-    PC_CPU_MODEL_IDS("1.4.0") \
-    {\
-        .driver   = "scsi-hd",\
-        .property = "discard_granularity",\
-        .value    = stringify(0),\
-    },{\
-        .driver   = "scsi-cd",\
-        .property = "discard_granularity",\
-        .value    = stringify(0),\
-    },{\
-        .driver   = "scsi-disk",\
-        .property = "discard_granularity",\
-        .value    = stringify(0),\
-    },{\
-        .driver   = "ide-hd",\
-        .property = "discard_granularity",\
-        .value    = stringify(0),\
-    },{\
-        .driver   = "ide-cd",\
-        .property = "discard_granularity",\
-        .value    = stringify(0),\
-    },{\
-        .driver   = "ide-drive",\
-        .property = "discard_granularity",\
-        .value    = stringify(0),\
-    },{\
-        .driver   = "virtio-blk-pci",\
-        .property = "discard_granularity",\
-        .value    = stringify(0),\
-    },{\
-        .driver   = "virtio-serial-pci",\
-        .property = "vectors",\
-        /* DEV_NVECTORS_UNSPECIFIED as a uint32_t string */\
-        .value    = stringify(0xFFFFFFFF),\
-    },{ \
-        .driver   = "virtio-net-pci", \
-        .property = "ctrl_guest_offloads", \
-        .value    = "off", \
-    },{\
-        .driver   = "e1000",\
-        .property = "romfile",\
-        .value    = "pxe-e1000.rom",\
-    },{\
-        .driver   = "ne2k_pci",\
-        .property = "romfile",\
-        .value    = "pxe-ne2k_pci.rom",\
-    },{\
-        .driver   = "pcnet",\
-        .property = "romfile",\
-        .value    = "pxe-pcnet.rom",\
-    },{\
-        .driver   = "rtl8139",\
-        .property = "romfile",\
-        .value    = "pxe-rtl8139.rom",\
-    },{\
-        .driver   = "virtio-net-pci",\
-        .property = "romfile",\
-        .value    = "pxe-virtio.rom",\
-    },{\
-        .driver   = "486-" TYPE_X86_CPU,\
-        .property = "model",\
-        .value    = stringify(0),\
-    },\
-    {\
-        .driver = "n270" "-" TYPE_X86_CPU,\
-        .property = "movbe",\
-        .value = "off",\
-    },\
-    {\
-        .driver = "Westmere" "-" TYPE_X86_CPU,\
-        .property = "pclmulqdq",\
-        .value = "off",\
-    },
-
 #define DEFINE_PC_MACHINE(suffix, namestr, initfn, optsfn) \
     static void pc_machine_##suffix##_class_init(ObjectClass *oc, void *data) \
     { \
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 92851e55df..bc014c1c9f 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -249,24 +249,27 @@ struct PropertyInfo {
 
 /**
  * GlobalProperty:
- * @user_provided: Set to true if property comes from user-provided config
- * (command-line or config file).
  * @used: Set to true if property was used when initializing a device.
- * @errp: Error destination, used like first argument of error_setg()
- *        in case property setting fails later. If @errp is NULL, we
- *        print warnings instead of ignoring errors silently. For
- *        hotplugged devices, errp is always ignored and warnings are
- *        printed instead.
+ *
+ * An error is fatal for non-hotplugged devices, when the global is applied.
  */
 typedef struct GlobalProperty {
     const char *driver;
     const char *property;
     const char *value;
-    bool user_provided;
     bool used;
-    Error **errp;
 } GlobalProperty;
 
+static inline void
+compat_props_add(GPtrArray *arr,
+                 GlobalProperty props[], size_t nelem)
+{
+    int i;
+    for (i = 0; i < nelem; i++) {
+        g_ptr_array_add(arr, (void *)&props[i]);
+    }
+}
+
 /*** Board API.  This should go away once we have a machine config file.  ***/
 
 DeviceState *qdev_create(BusState *bus, const char *name);
@@ -412,6 +415,8 @@ const char *qdev_fw_name(DeviceState *dev);
 
 Object *qdev_get_machine(void);
 
+void object_apply_compat_props(Object *obj);
+
 /* FIXME: make this a link<> */
 void qdev_set_parent_bus(DeviceState *dev, BusState *bus);
 
diff --git a/include/qom/object.h b/include/qom/object.h
index bcae3f4951..e0262962b5 100644
--- a/include/qom/object.h
+++ b/include/qom/object.h
@@ -675,6 +675,9 @@ Object *object_new_with_propv(const char *typename,
                               Error **errp,
                               va_list vargs);
 
+void object_apply_global_props(Object *obj, const GPtrArray *props,
+                               Error **errp);
+
 /**
  * object_set_props:
  * @obj: the object instance to set properties on
diff --git a/include/sysemu/accel.h b/include/sysemu/accel.h
index 637358f430..f331d128e9 100644
--- a/include/sysemu/accel.h
+++ b/include/sysemu/accel.h
@@ -49,7 +49,7 @@ typedef struct AccelClass {
      * global properties may be overridden by machine-type
      * compat_props or user-provided global properties.
      */
-    GlobalProperty *global_props;
+    GPtrArray *compat_props;
 } AccelClass;
 
 #define TYPE_ACCEL "accel"
@@ -67,8 +67,6 @@ typedef struct AccelClass {
 extern unsigned long tcg_tb_size;
 
 void configure_accelerator(MachineState *ms);
-/* Register accelerator specific global properties */
-void accel_register_compat_props(AccelState *accel);
 /* Called just before os_setup_post (ie just before drop OS privs) */
 void accel_setup_post(MachineState *ms);
 
diff --git a/include/sysemu/hostmem.h b/include/sysemu/hostmem.h
index 6e6bd2c1cb..a023b372a4 100644
--- a/include/sysemu/hostmem.h
+++ b/include/sysemu/hostmem.h
@@ -53,7 +53,7 @@ struct HostMemoryBackend {
 
     /* protected */
     uint64_t size;
-    bool merge, dump;
+    bool merge, dump, use_canonical_path;
     bool prealloc, force_prealloc, is_mapped, share;
     DECLARE_BITMAP(host_nodes, MAX_NODES + 1);
     HostMemPolicy policy;
@@ -67,5 +67,6 @@ MemoryRegion *host_memory_backend_get_memory(HostMemoryBackend *backend);
 void host_memory_backend_set_mapped(HostMemoryBackend *backend, bool mapped);
 bool host_memory_backend_is_mapped(HostMemoryBackend *backend);
 size_t host_memory_backend_pagesize(HostMemoryBackend *memdev);
+char *host_memory_backend_get_name(HostMemoryBackend *backend);
 
 #endif