diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index ce2664a30b..16ba67f7a7 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1978,10 +1978,17 @@ static void machvirt_machine_init(void)
 }
 type_init(machvirt_machine_init);
 
-static void virt_machine_4_0_options(MachineClass *mc)
+static void virt_machine_4_1_options(MachineClass *mc)
 {
 }
-DEFINE_VIRT_MACHINE_AS_LATEST(4, 0)
+DEFINE_VIRT_MACHINE_AS_LATEST(4, 1)
+
+static void virt_machine_4_0_options(MachineClass *mc)
+{
+    virt_machine_4_1_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
+}
+DEFINE_VIRT_MACHINE(4, 0)
 
 static void virt_machine_3_1_options(MachineClass *mc)
 {
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 743fef2898..5d046a43e3 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -24,6 +24,9 @@
 #include "hw/pci/pci.h"
 #include "hw/mem/nvdimm.h"
 
+GlobalProperty hw_compat_4_0[] = {};
+const size_t hw_compat_4_0_len = G_N_ELEMENTS(hw_compat_4_0);
+
 GlobalProperty hw_compat_3_1[] = {
     { "pcie-root-port", "x-speed", "2_5" },
     { "pcie-root-port", "x-width", "1" },
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index f2c15bf1f2..d98b737b8f 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -115,6 +115,9 @@ struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
 /* Physical Address of PVH entry point read from kernel ELF NOTE */
 static size_t pvh_start_addr;
 
+GlobalProperty pc_compat_4_0[] = {};
+const size_t pc_compat_4_0_len = G_N_ELEMENTS(pc_compat_4_0);
+
 GlobalProperty pc_compat_3_1[] = {
     { "intel-iommu", "dma-drain", "off" },
     { "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "off" },
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 8ad8e885c6..2a7700b564 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -428,13 +428,25 @@ static void pc_i440fx_machine_options(MachineClass *m)
     machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
 }
 
-static void pc_i440fx_4_0_machine_options(MachineClass *m)
+static void pc_i440fx_4_1_machine_options(MachineClass *m)
 {
     pc_i440fx_machine_options(m);
     m->alias = "pc";
     m->is_default = 1;
 }
 
+DEFINE_I440FX_MACHINE(v4_1, "pc-i440fx-4.1", NULL,
+                      pc_i440fx_4_1_machine_options);
+
+static void pc_i440fx_4_0_machine_options(MachineClass *m)
+{
+    pc_i440fx_4_1_machine_options(m);
+    m->alias = NULL;
+    m->is_default = 0;
+    compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
+    compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
+}
+
 DEFINE_I440FX_MACHINE(v4_0, "pc-i440fx-4.0", NULL,
                       pc_i440fx_4_0_machine_options);
 
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 372c6b73be..37dd350511 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -365,12 +365,23 @@ static void pc_q35_machine_options(MachineClass *m)
     m->max_cpus = 288;
 }
 
-static void pc_q35_4_0_machine_options(MachineClass *m)
+static void pc_q35_4_1_machine_options(MachineClass *m)
 {
     pc_q35_machine_options(m);
     m->alias = "q35";
 }
 
+DEFINE_Q35_MACHINE(v4_1, "pc-q35-4.1", NULL,
+                   pc_q35_4_1_machine_options);
+
+static void pc_q35_4_0_machine_options(MachineClass *m)
+{
+    pc_q35_4_1_machine_options(m);
+    m->alias = NULL;
+    compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
+    compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
+}
+
 DEFINE_Q35_MACHINE(v4_0, "pc-q35-4.0", NULL,
                    pc_q35_4_0_machine_options);
 
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index b52b82d298..8438741ec2 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -4345,14 +4345,25 @@ static const TypeInfo spapr_machine_info = {
     type_init(spapr_machine_register_##suffix)
 
 /*
- * pseries-4.0
+ * pseries-4.1
  */
-static void spapr_machine_4_0_class_options(MachineClass *mc)
+static void spapr_machine_4_1_class_options(MachineClass *mc)
 {
     /* Defaults for the latest behaviour inherited from the base class */
 }
 
-DEFINE_SPAPR_MACHINE(4_0, "4.0", true);
+DEFINE_SPAPR_MACHINE(4_1, "4.1", true);
+
+/*
+ * pseries-4.0
+ */
+static void spapr_machine_4_0_class_options(MachineClass *mc)
+{
+    spapr_machine_4_1_class_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
+}
+
+DEFINE_SPAPR_MACHINE(4_0, "4.0", false);
 
 /*
  * pseries-3.1
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index d11069b860..02470e78c7 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -646,14 +646,26 @@ bool css_migration_enabled(void)
     }                                                                         \
     type_init(ccw_machine_register_##suffix)
 
+static void ccw_machine_4_1_instance_options(MachineState *machine)
+{
+}
+
+static void ccw_machine_4_1_class_options(MachineClass *mc)
+{
+}
+DEFINE_CCW_MACHINE(4_1, "4.1", true);
+
 static void ccw_machine_4_0_instance_options(MachineState *machine)
 {
+    ccw_machine_4_1_instance_options(machine);
 }
 
 static void ccw_machine_4_0_class_options(MachineClass *mc)
 {
+    ccw_machine_4_1_class_options(mc);
+    compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
 }
-DEFINE_CCW_MACHINE(4_0, "4.0", true);
+DEFINE_CCW_MACHINE(4_0, "4.0", false);
 
 static void ccw_machine_3_1_instance_options(MachineState *machine)
 {
diff --git a/include/hw/boards.h b/include/hw/boards.h
index e231860666..fe1885cbff 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -293,6 +293,9 @@ struct MachineState {
     } \
     type_init(machine_initfn##_register_types)
 
+extern GlobalProperty hw_compat_4_0[];
+extern const size_t hw_compat_4_0_len;
+
 extern GlobalProperty hw_compat_3_1[];
 extern const size_t hw_compat_3_1_len;
 
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index ca65ef18af..43df7230a2 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -293,6 +293,9 @@ 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 *);
 
+extern GlobalProperty pc_compat_4_0[];
+extern const size_t pc_compat_4_0_len;
+
 extern GlobalProperty pc_compat_3_1[];
 extern const size_t pc_compat_3_1_len;