7 files changed, 37 insertions, 17 deletions

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 75ab143..a0898f2 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1918,12 +1918,8 @@ DEFINE_VIRT_MACHINE(2, 10)
 
 static void virt_machine_2_9_options(MachineClass *mc)
 {
-    static GlobalProperty compat[] = {
-        HW_COMPAT_2_9
-    };
-
     virt_machine_2_10_options(mc);
-    compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
+    compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
 }
 DEFINE_VIRT_MACHINE(2, 9)
 
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 7673454..aa5f03f 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -101,6 +101,27 @@ GlobalProperty hw_compat_2_10[] = {
 };
 const size_t hw_compat_2_10_len = G_N_ELEMENTS(hw_compat_2_10);
 
+GlobalProperty 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",
+    },
+};
+const size_t hw_compat_2_9_len = G_N_ELEMENTS(hw_compat_2_9);
+
 static char *machine_get_accel(Object *obj, Error **errp)
 {
     MachineState *ms = MACHINE(obj);
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index c0bb82c..3f6f5df 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -186,6 +186,15 @@ GlobalProperty pc_compat_2_10[] = {
 };
 const size_t pc_compat_2_10_len = G_N_ELEMENTS(pc_compat_2_10);
 
+GlobalProperty pc_compat_2_9[] = {
+    {
+        .driver   = "mch",
+        .property = "extended-tseg-mbytes",
+        .value    = stringify(0),
+    },
+};
+const size_t pc_compat_2_9_len = G_N_ELEMENTS(pc_compat_2_9);
+
 void gsi_handler(void *opaque, int n, int level)
 {
     GSIState *s = opaque;
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index aea678d..02520bc 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -493,12 +493,9 @@ DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL,
 
 static void pc_i440fx_2_9_machine_options(MachineClass *m)
 {
-    static GlobalProperty compat[] = {
-        PC_COMPAT_2_9
-    };
-
     pc_i440fx_2_10_machine_options(m);
-    compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat));
+    compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len);
+    compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len);
     m->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
 }
 
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index a9c4fc2..e94d2d0 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -380,12 +380,9 @@ DEFINE_Q35_MACHINE(v2_10, "pc-q35-2.10", NULL,
 
 static void pc_q35_2_9_machine_options(MachineClass *m)
 {
-    static GlobalProperty compat[] = {
-        PC_COMPAT_2_9
-    };
-
     pc_q35_2_10_machine_options(m);
-    compat_props_add(m->compat_props, compat, G_N_ELEMENTS(compat));
+    compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len);
+    compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len);
 }
 
 DEFINE_Q35_MACHINE(v2_9, "pc-q35-2.9", NULL,
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 483a137..477ff5e 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -4127,7 +4127,6 @@ static void spapr_machine_2_9_class_options(MachineClass *mc)
 {
     sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
     static GlobalProperty compat[] = {
-        HW_COMPAT_2_9
         {
             .driver = TYPE_POWERPC_CPU,
             .property = "pre-2.10-migration",
@@ -4136,6 +4135,7 @@ static void spapr_machine_2_9_class_options(MachineClass *mc)
     };
 
     spapr_machine_2_10_class_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
     mc->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
     smc->pre_2_10_has_unused_icps = true;
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 95ad7ba..549f6e0 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -752,7 +752,6 @@ static void ccw_machine_2_9_class_options(MachineClass *mc)
 {
     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
     static GlobalProperty compat[] = {
-        HW_COMPAT_2_9
         {
             .driver   = TYPE_S390_STATTRIB,
             .property = "migration-enabled",
@@ -761,6 +760,7 @@ static void ccw_machine_2_9_class_options(MachineClass *mc)
     };
 
     ccw_machine_2_10_class_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
     s390mc->css_migration_enabled = false;
 }