diff --git a/hw/core/machine.c b/hw/core/machine.c
index e869821b22..a7043e2a34 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -39,6 +39,8 @@
 
 GlobalProperty hw_compat_10_0[] = {
     { "scsi-hd", "dpofua", "off" },
+    { "ramfb", "use-legacy-x86-rom", "true"},
+    { "vfio-pci", "use-legacy-x86-rom", "true" },
 };
 const size_t hw_compat_10_0_len = G_N_ELEMENTS(hw_compat_10_0);
 
diff --git a/hw/display/ramfb-standalone.c b/hw/display/ramfb-standalone.c
index 82d8c69f89..72b2071aed 100644
--- a/hw/display/ramfb-standalone.c
+++ b/hw/display/ramfb-standalone.c
@@ -64,7 +64,7 @@ static const VMStateDescription ramfb_dev_vmstate = {
 static const Property ramfb_properties[] = {
     DEFINE_PROP_BOOL("x-migrate", RAMFBStandaloneState, migrate,  true),
     DEFINE_PROP_BOOL("use-legacy-x86-rom", RAMFBStandaloneState,
-                     use_legacy_x86_rom, true),
+                     use_legacy_x86_rom, false),
 };
 
 static void ramfb_class_initfn(ObjectClass *klass, const void *data)
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index e0daf0d4fc..d90b69a162 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -49,6 +49,7 @@
 #include "hw/acpi/generic_event_device.h"
 #include "hw/pci-host/gpex.h"
 #include "hw/usb/xhci.h"
+#include "hw/vfio/types.h"
 
 #include "elf.h"
 #include "kvm/kvm_i386.h"
@@ -633,6 +634,8 @@ GlobalProperty microvm_properties[] = {
      * so reserving io space is not going to work.  Turn it off.
      */
     { "pcie-root-port", "io-reserve", "0" },
+    { TYPE_RAMFB_DEVICE, "use-legacy-x86-rom", "true" },
+    { TYPE_VFIO_PCI, "use-legacy-x86-rom", "true" },
 };
 
 static void microvm_class_init(ObjectClass *oc, const void *data)
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index a3285fbc64..ad5caff3a5 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -49,6 +49,7 @@
 #include "hw/i2c/smbus_eeprom.h"
 #include "system/memory.h"
 #include "hw/acpi/acpi.h"
+#include "hw/vfio/types.h"
 #include "qapi/error.h"
 #include "qemu/error-report.h"
 #include "system/xen.h"
@@ -77,6 +78,13 @@ static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
 static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
 #endif
 
+static GlobalProperty pc_piix_compat_defaults[] = {
+    { TYPE_RAMFB_DEVICE, "use-legacy-x86-rom", "true" },
+    { TYPE_VFIO_PCI, "use-legacy-x86-rom", "true" },
+};
+static const size_t pc_piix_compat_defaults_len =
+    G_N_ELEMENTS(pc_piix_compat_defaults);
+
 /*
  * Return the global irq number corresponding to a given device irq
  * pin. We could also use the bus number to have a more precise mapping.
@@ -492,6 +500,8 @@ static void pc_i440fx_machine_options(MachineClass *m)
                                    pc_set_south_bridge);
     object_class_property_set_description(oc, "x-south-bridge",
                                      "Use a different south bridge than PIIX3");
+    compat_props_add(m->compat_props,
+                     pc_piix_compat_defaults, pc_piix_compat_defaults_len);
 }
 
 static void pc_i440fx_machine_10_1_options(MachineClass *m)
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index cf871cfdad..9b9519fa02 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -45,6 +45,7 @@
 #include "hw/i386/pc.h"
 #include "hw/i386/amd_iommu.h"
 #include "hw/i386/intel_iommu.h"
+#include "hw/vfio/types.h"
 #include "hw/virtio/virtio-iommu.h"
 #include "hw/display/ramfb.h"
 #include "hw/ide/pci.h"
@@ -67,6 +68,8 @@
 
 static GlobalProperty pc_q35_compat_defaults[] = {
     { TYPE_VIRTIO_IOMMU_PCI, "aw-bits", "39" },
+    { TYPE_RAMFB_DEVICE, "use-legacy-x86-rom", "true" },
+    { TYPE_VFIO_PCI, "use-legacy-x86-rom", "true" },
 };
 static const size_t pc_q35_compat_defaults_len =
     G_N_ELEMENTS(pc_q35_compat_defaults);
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 0b969b3359..174499ecec 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3810,7 +3810,7 @@ static const TypeInfo vfio_pci_dev_info = {
 static const Property vfio_pci_dev_nohotplug_properties[] = {
     DEFINE_PROP_BOOL("ramfb", VFIOPCIDevice, enable_ramfb, false),
     DEFINE_PROP_BOOL("use-legacy-x86-rom", VFIOPCIDevice,
-                     use_legacy_x86_rom, true),
+                     use_legacy_x86_rom, false),
     DEFINE_PROP_ON_OFF_AUTO("x-ramfb-migrate", VFIOPCIDevice, ramfb_migrate,
                             ON_OFF_AUTO_AUTO),
 };