8 files changed, 70 insertions, 9 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index a96452f17a..3e72adaa91 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -3408,10 +3408,17 @@ static void machvirt_machine_init(void)
 }
 type_init(machvirt_machine_init);
 
+static void virt_machine_10_1_options(MachineClass *mc)
+{
+}
+DEFINE_VIRT_MACHINE_AS_LATEST(10, 1)
+
 static void virt_machine_10_0_options(MachineClass *mc)
 {
+    virt_machine_10_1_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_10_0, hw_compat_10_0_len);
 }
-DEFINE_VIRT_MACHINE_AS_LATEST(10, 0)
+DEFINE_VIRT_MACHINE(10, 0)
 
 static void virt_machine_9_2_options(MachineClass *mc)
 {
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 63c6ef93d2..abfcedd4a5 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -37,6 +37,9 @@
 #include "hw/virtio/virtio-iommu.h"
 #include "audio/audio.h"
 
+GlobalProperty hw_compat_10_0[] = {};
+const size_t hw_compat_10_0_len = G_N_ELEMENTS(hw_compat_10_0);
+
 GlobalProperty hw_compat_9_2[] = {
     {"arm-cpu", "backcompat-pauth-default-use-qarma5", "true"},
     { "virtio-balloon-pci", "vectors", "0" },
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 01d0581f62..1b5d55e96d 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -79,6 +79,9 @@
     { "qemu64-" TYPE_X86_CPU, "model-id", "QEMU Virtual CPU version " v, },\
     { "athlon-" TYPE_X86_CPU, "model-id", "QEMU Virtual CPU version " v, },
 
+GlobalProperty pc_compat_10_0[] = {};
+const size_t pc_compat_10_0_len = G_N_ELEMENTS(pc_compat_10_0);
+
 GlobalProperty pc_compat_9_2[] = {};
 const size_t pc_compat_9_2_len = G_N_ELEMENTS(pc_compat_9_2);
 
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 6c91e2d292..dbb59df64f 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -479,12 +479,21 @@ static void pc_i440fx_machine_options(MachineClass *m)
                                      "Use a different south bridge than PIIX3");
 }
 
-static void pc_i440fx_machine_10_0_options(MachineClass *m)
+static void pc_i440fx_machine_10_1_options(MachineClass *m)
 {
     pc_i440fx_machine_options(m);
 }
 
-DEFINE_I440FX_MACHINE_AS_LATEST(10, 0);
+DEFINE_I440FX_MACHINE_AS_LATEST(10, 1);
+
+static void pc_i440fx_machine_10_0_options(MachineClass *m)
+{
+    pc_i440fx_machine_10_1_options(m);
+    compat_props_add(m->compat_props, hw_compat_10_0, hw_compat_10_0_len);
+    compat_props_add(m->compat_props, pc_compat_10_0, pc_compat_10_0_len);
+}
+
+DEFINE_I440FX_MACHINE(10, 0);
 
 static void pc_i440fx_machine_9_2_options(MachineClass *m)
 {
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index fd96d0345c..c538b3d05b 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -361,12 +361,21 @@ static void pc_q35_machine_options(MachineClass *m)
                      pc_q35_compat_defaults, pc_q35_compat_defaults_len);
 }
 
-static void pc_q35_machine_10_0_options(MachineClass *m)
+static void pc_q35_machine_10_1_options(MachineClass *m)
 {
     pc_q35_machine_options(m);
 }
 
-DEFINE_Q35_MACHINE_AS_LATEST(10, 0);
+DEFINE_Q35_MACHINE_AS_LATEST(10, 1);
+
+static void pc_q35_machine_10_0_options(MachineClass *m)
+{
+    pc_q35_machine_10_1_options(m);
+    compat_props_add(m->compat_props, hw_compat_10_0, hw_compat_10_0_len);
+    compat_props_add(m->compat_props, pc_compat_10_0, pc_compat_10_0_len);
+}
+
+DEFINE_Q35_MACHINE(10, 0);
 
 static void pc_q35_machine_9_2_options(MachineClass *m)
 {
diff --git a/hw/m68k/virt.c b/hw/m68k/virt.c
index d967bdd743..295a614e16 100644
--- a/hw/m68k/virt.c
+++ b/hw/m68k/virt.c
@@ -366,10 +366,17 @@ type_init(virt_machine_register_types)
 #define DEFINE_VIRT_MACHINE(major, minor) \
     DEFINE_VIRT_MACHINE_IMPL(false, major, minor)
 
+static void virt_machine_10_1_options(MachineClass *mc)
+{
+}
+DEFINE_VIRT_MACHINE_AS_LATEST(10, 1)
+
 static void virt_machine_10_0_options(MachineClass *mc)
 {
+    virt_machine_10_1_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_10_0, hw_compat_10_0_len);
 }
-DEFINE_VIRT_MACHINE_AS_LATEST(10, 0)
+DEFINE_VIRT_MACHINE(10, 0)
 
 static void virt_machine_9_2_options(MachineClass *mc)
 {
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index b0a0f8c689..6fef1d167a 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -4767,14 +4767,25 @@ static void spapr_machine_latest_class_options(MachineClass *mc)
     DEFINE_SPAPR_MACHINE_IMPL(false, major, minor)
 
 /*
+ * pseries-10.1
+ */
+static void spapr_machine_10_1_class_options(MachineClass *mc)
+{
+    /* Defaults for the latest behaviour inherited from the base class */
+}
+
+DEFINE_SPAPR_MACHINE_AS_LATEST(10, 1);
+
+/*
  * pseries-10.0
  */
 static void spapr_machine_10_0_class_options(MachineClass *mc)
 {
-    /* Defaults for the latest behaviour inherited from the base class */
+    spapr_machine_10_1_class_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_10_0, hw_compat_10_0_len);
 }
 
-DEFINE_SPAPR_MACHINE_AS_LATEST(10, 0);
+DEFINE_SPAPR_MACHINE(10, 0);
 
 /*
  * pseries-9.2
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 910dab0831..5af3c4f547 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -924,14 +924,26 @@ static const TypeInfo ccw_machine_info = {
     DEFINE_CCW_MACHINE_IMPL(false, major, minor)
 
 
+static void ccw_machine_10_1_instance_options(MachineState *machine)
+{
+}
+
+static void ccw_machine_10_1_class_options(MachineClass *mc)
+{
+}
+DEFINE_CCW_MACHINE_AS_LATEST(10, 1);
+
 static void ccw_machine_10_0_instance_options(MachineState *machine)
 {
+    ccw_machine_10_1_instance_options(machine);
 }
 
 static void ccw_machine_10_0_class_options(MachineClass *mc)
 {
+    ccw_machine_10_1_class_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_10_0, hw_compat_10_0_len);
 }
-DEFINE_CCW_MACHINE_AS_LATEST(10, 0);
+DEFINE_CCW_MACHINE(10, 0);
 
 static void ccw_machine_9_2_instance_options(MachineState *machine)
 {