diff mbox series

[v2,06/14] hw/i386: convert 'i440fx' machine definitions to use new macros

Message ID 20240620165742.1711389-7-berrange@redhat.com
State New
Headers show
Series hw: define and enforce a standard lifecycle for versioned machines | expand

Commit Message

Daniel P. Berrangé June 20, 2024, 4:57 p.m. UTC 
This changes the DEFINE_I440FX_MACHINE macro to use the common
helpers for constructing versioned symbol names and strings,
bringing greater consistency across targets.

The added benefit is that it avoids the need to repeat the
version number thrice in three different formats in the calls
to DEFINE_I440FX_MACHINE.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 hw/i386/pc_piix.c    | 219 +++++++++++++++++++------------------------
 include/hw/i386/pc.h |  26 +++++
 2 files changed, 122 insertions(+), 123 deletions(-)

Comments

Thomas Huth July 1, 2024, 9:11 a.m. UTC | #1 
On 20/06/2024 18.57, Daniel P. Berrangé wrote:
> This changes the DEFINE_I440FX_MACHINE macro to use the common
> helpers for constructing versioned symbol names and strings,
> bringing greater consistency across targets.
> 
> The added benefit is that it avoids the need to repeat the
> version number thrice in three different formats in the calls
> to DEFINE_I440FX_MACHINE.
> 
> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
> ---
>   hw/i386/pc_piix.c    | 219 +++++++++++++++++++------------------------
>   include/hw/i386/pc.h |  26 +++++
>   2 files changed, 122 insertions(+), 123 deletions(-)


Reviewed-by: Thomas Huth <thuth@redhat.com>
Philippe Mathieu-Daudé July 1, 2024, 12:58 p.m. UTC | #2 
On 20/6/24 18:57, Daniel P. Berrangé wrote:
> This changes the DEFINE_I440FX_MACHINE macro to use the common
> helpers for constructing versioned symbol names and strings,
> bringing greater consistency across targets.
> 
> The added benefit is that it avoids the need to repeat the
> version number thrice in three different formats in the calls
> to DEFINE_I440FX_MACHINE.
> 
> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
> ---
>   hw/i386/pc_piix.c    | 219 +++++++++++++++++++------------------------
>   include/hw/i386/pc.h |  26 +++++
>   2 files changed, 122 insertions(+), 123 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff mbox series

Patch

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index e4930b7f48..5705d6e155 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -445,12 +445,13 @@  static void pc_xen_hvm_init(MachineState *machine)
 }
 #endif
 
-#define DEFINE_I440FX_MACHINE(suffix, name, optionfn) \
-    static void pc_init_##suffix(MachineState *machine) \
-    { \
-        pc_init1(machine, TYPE_I440FX_PCI_DEVICE); \
-    } \
-    DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
+static void pc_i440fx_init(MachineState *machine)
+{
+    pc_init1(machine, TYPE_I440FX_PCI_DEVICE);
+}
+
+#define DEFINE_I440FX_MACHINE(major, minor) \
+    DEFINE_PC_VER_MACHINE(pc_i440fx, "pc-i440fx", pc_i440fx_init, major, minor);
 
 static void pc_i440fx_machine_options(MachineClass *m)
 {
@@ -478,21 +479,20 @@  static void pc_i440fx_machine_options(MachineClass *m)
                                      "Use a different south bridge than PIIX3");
 }
 
-static void pc_i440fx_9_1_machine_options(MachineClass *m)
+static void pc_i440fx_machine_9_1_options(MachineClass *m)
 {
     pc_i440fx_machine_options(m);
     m->alias = "pc";
     m->is_default = true;
 }
 
-DEFINE_I440FX_MACHINE(v9_1, "pc-i440fx-9.1",
-                      pc_i440fx_9_1_machine_options);
+DEFINE_I440FX_MACHINE(9, 1);
 
-static void pc_i440fx_9_0_machine_options(MachineClass *m)
+static void pc_i440fx_machine_9_0_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
-    pc_i440fx_9_1_machine_options(m);
+    pc_i440fx_machine_9_1_options(m);
     m->alias = NULL;
     m->is_default = false;
 
@@ -501,14 +501,13 @@  static void pc_i440fx_9_0_machine_options(MachineClass *m)
     pcmc->isa_bios_alias = false;
 }
 
-DEFINE_I440FX_MACHINE(v9_0, "pc-i440fx-9.0",
-                      pc_i440fx_9_0_machine_options);
+DEFINE_I440FX_MACHINE(9, 0);
 
-static void pc_i440fx_8_2_machine_options(MachineClass *m)
+static void pc_i440fx_machine_8_2_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
-    pc_i440fx_9_0_machine_options(m);
+    pc_i440fx_machine_9_0_options(m);
 
     compat_props_add(m->compat_props, hw_compat_8_2, hw_compat_8_2_len);
     compat_props_add(m->compat_props, pc_compat_8_2, pc_compat_8_2_len);
@@ -516,28 +515,26 @@  static void pc_i440fx_8_2_machine_options(MachineClass *m)
     pcmc->default_smbios_ep_type = SMBIOS_ENTRY_POINT_TYPE_64;
 }
 
-DEFINE_I440FX_MACHINE(v8_2, "pc-i440fx-8.2",
-                      pc_i440fx_8_2_machine_options);
+DEFINE_I440FX_MACHINE(8, 2);
 
-static void pc_i440fx_8_1_machine_options(MachineClass *m)
+static void pc_i440fx_machine_8_1_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
-    pc_i440fx_8_2_machine_options(m);
+    pc_i440fx_machine_8_2_options(m);
     pcmc->broken_32bit_mem_addr_check = true;
 
     compat_props_add(m->compat_props, hw_compat_8_1, hw_compat_8_1_len);
     compat_props_add(m->compat_props, pc_compat_8_1, pc_compat_8_1_len);
 }
 
-DEFINE_I440FX_MACHINE(v8_1, "pc-i440fx-8.1",
-                      pc_i440fx_8_1_machine_options);
+DEFINE_I440FX_MACHINE(8, 1);
 
-static void pc_i440fx_8_0_machine_options(MachineClass *m)
+static void pc_i440fx_machine_8_0_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
-    pc_i440fx_8_1_machine_options(m);
+    pc_i440fx_machine_8_1_options(m);
     compat_props_add(m->compat_props, hw_compat_8_0, hw_compat_8_0_len);
     compat_props_add(m->compat_props, pc_compat_8_0, pc_compat_8_0_len);
 
@@ -545,268 +542,244 @@  static void pc_i440fx_8_0_machine_options(MachineClass *m)
     pcmc->default_smbios_ep_type = SMBIOS_ENTRY_POINT_TYPE_32;
 }
 
-DEFINE_I440FX_MACHINE(v8_0, "pc-i440fx-8.0",
-                      pc_i440fx_8_0_machine_options);
+DEFINE_I440FX_MACHINE(8, 0);
 
-static void pc_i440fx_7_2_machine_options(MachineClass *m)
+static void pc_i440fx_machine_7_2_options(MachineClass *m)
 {
-    pc_i440fx_8_0_machine_options(m);
+    pc_i440fx_machine_8_0_options(m);
     compat_props_add(m->compat_props, hw_compat_7_2, hw_compat_7_2_len);
     compat_props_add(m->compat_props, pc_compat_7_2, pc_compat_7_2_len);
 }
 
-DEFINE_I440FX_MACHINE(v7_2, "pc-i440fx-7.2",
-                      pc_i440fx_7_2_machine_options);
+DEFINE_I440FX_MACHINE(7, 2)
 
-static void pc_i440fx_7_1_machine_options(MachineClass *m)
+static void pc_i440fx_machine_7_1_options(MachineClass *m)
 {
-    pc_i440fx_7_2_machine_options(m);
+    pc_i440fx_machine_7_2_options(m);
     compat_props_add(m->compat_props, hw_compat_7_1, hw_compat_7_1_len);
     compat_props_add(m->compat_props, pc_compat_7_1, pc_compat_7_1_len);
 }
 
-DEFINE_I440FX_MACHINE(v7_1, "pc-i440fx-7.1",
-                      pc_i440fx_7_1_machine_options);
+DEFINE_I440FX_MACHINE(7, 1);
 
-static void pc_i440fx_7_0_machine_options(MachineClass *m)
+static void pc_i440fx_machine_7_0_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
-    pc_i440fx_7_1_machine_options(m);
+    pc_i440fx_machine_7_1_options(m);
     pcmc->enforce_amd_1tb_hole = false;
     compat_props_add(m->compat_props, hw_compat_7_0, hw_compat_7_0_len);
     compat_props_add(m->compat_props, pc_compat_7_0, pc_compat_7_0_len);
 }
 
-DEFINE_I440FX_MACHINE(v7_0, "pc-i440fx-7.0",
-                      pc_i440fx_7_0_machine_options);
+DEFINE_I440FX_MACHINE(7, 0);
 
-static void pc_i440fx_6_2_machine_options(MachineClass *m)
+static void pc_i440fx_machine_6_2_options(MachineClass *m)
 {
-    pc_i440fx_7_0_machine_options(m);
+    pc_i440fx_machine_7_0_options(m);
     compat_props_add(m->compat_props, hw_compat_6_2, hw_compat_6_2_len);
     compat_props_add(m->compat_props, pc_compat_6_2, pc_compat_6_2_len);
 }
 
-DEFINE_I440FX_MACHINE(v6_2, "pc-i440fx-6.2",
-                      pc_i440fx_6_2_machine_options);
+DEFINE_I440FX_MACHINE(6, 2);
 
-static void pc_i440fx_6_1_machine_options(MachineClass *m)
+static void pc_i440fx_machine_6_1_options(MachineClass *m)
 {
-    pc_i440fx_6_2_machine_options(m);
+    pc_i440fx_machine_6_2_options(m);
     compat_props_add(m->compat_props, hw_compat_6_1, hw_compat_6_1_len);
     compat_props_add(m->compat_props, pc_compat_6_1, pc_compat_6_1_len);
     m->smp_props.prefer_sockets = true;
 }
 
-DEFINE_I440FX_MACHINE(v6_1, "pc-i440fx-6.1",
-                      pc_i440fx_6_1_machine_options);
+DEFINE_I440FX_MACHINE(6, 1);
 
-static void pc_i440fx_6_0_machine_options(MachineClass *m)
+static void pc_i440fx_machine_6_0_options(MachineClass *m)
 {
-    pc_i440fx_6_1_machine_options(m);
+    pc_i440fx_machine_6_1_options(m);
     compat_props_add(m->compat_props, hw_compat_6_0, hw_compat_6_0_len);
     compat_props_add(m->compat_props, pc_compat_6_0, pc_compat_6_0_len);
 }
 
-DEFINE_I440FX_MACHINE(v6_0, "pc-i440fx-6.0",
-                      pc_i440fx_6_0_machine_options);
+DEFINE_I440FX_MACHINE(6, 0);
 
-static void pc_i440fx_5_2_machine_options(MachineClass *m)
+static void pc_i440fx_machine_5_2_options(MachineClass *m)
 {
-    pc_i440fx_6_0_machine_options(m);
+    pc_i440fx_machine_6_0_options(m);
     compat_props_add(m->compat_props, hw_compat_5_2, hw_compat_5_2_len);
     compat_props_add(m->compat_props, pc_compat_5_2, pc_compat_5_2_len);
 }
 
-DEFINE_I440FX_MACHINE(v5_2, "pc-i440fx-5.2",
-                      pc_i440fx_5_2_machine_options);
+DEFINE_I440FX_MACHINE(5, 2);
 
-static void pc_i440fx_5_1_machine_options(MachineClass *m)
+static void pc_i440fx_machine_5_1_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
-    pc_i440fx_5_2_machine_options(m);
+    pc_i440fx_machine_5_2_options(m);
     compat_props_add(m->compat_props, hw_compat_5_1, hw_compat_5_1_len);
     compat_props_add(m->compat_props, pc_compat_5_1, pc_compat_5_1_len);
     pcmc->kvmclock_create_always = false;
     pcmc->pci_root_uid = 1;
 }
 
-DEFINE_I440FX_MACHINE(v5_1, "pc-i440fx-5.1",
-                      pc_i440fx_5_1_machine_options);
+DEFINE_I440FX_MACHINE(5, 1);
 
-static void pc_i440fx_5_0_machine_options(MachineClass *m)
+static void pc_i440fx_machine_5_0_options(MachineClass *m)
 {
-    pc_i440fx_5_1_machine_options(m);
+    pc_i440fx_machine_5_1_options(m);
     m->numa_mem_supported = true;
     compat_props_add(m->compat_props, hw_compat_5_0, hw_compat_5_0_len);
     compat_props_add(m->compat_props, pc_compat_5_0, pc_compat_5_0_len);
     m->auto_enable_numa_with_memdev = false;
 }
 
-DEFINE_I440FX_MACHINE(v5_0, "pc-i440fx-5.0",
-                      pc_i440fx_5_0_machine_options);
+DEFINE_I440FX_MACHINE(5, 0);
 
-static void pc_i440fx_4_2_machine_options(MachineClass *m)
+static void pc_i440fx_machine_4_2_options(MachineClass *m)
 {
-    pc_i440fx_5_0_machine_options(m);
+    pc_i440fx_machine_5_0_options(m);
     compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len);
     compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len);
 }
 
-DEFINE_I440FX_MACHINE(v4_2, "pc-i440fx-4.2",
-                      pc_i440fx_4_2_machine_options);
+DEFINE_I440FX_MACHINE(4, 2);
 
-static void pc_i440fx_4_1_machine_options(MachineClass *m)
+static void pc_i440fx_machine_4_1_options(MachineClass *m)
 {
-    pc_i440fx_4_2_machine_options(m);
+    pc_i440fx_machine_4_2_options(m);
     compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len);
     compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len);
 }
 
-DEFINE_I440FX_MACHINE(v4_1, "pc-i440fx-4.1",
-                      pc_i440fx_4_1_machine_options);
+DEFINE_I440FX_MACHINE(4, 1);
 
-static void pc_i440fx_4_0_machine_options(MachineClass *m)
+static void pc_i440fx_machine_4_0_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
-    pc_i440fx_4_1_machine_options(m);
+    pc_i440fx_machine_4_1_options(m);
     pcmc->default_cpu_version = CPU_VERSION_LEGACY;
     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",
-                      pc_i440fx_4_0_machine_options);
+DEFINE_I440FX_MACHINE(4, 0);
 
-static void pc_i440fx_3_1_machine_options(MachineClass *m)
+static void pc_i440fx_machine_3_1_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
-    pc_i440fx_4_0_machine_options(m);
+    pc_i440fx_machine_4_0_options(m);
     m->smbus_no_migration_support = true;
     pcmc->pvh_enabled = false;
     compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len);
     compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len);
 }
 
-DEFINE_I440FX_MACHINE(v3_1, "pc-i440fx-3.1",
-                      pc_i440fx_3_1_machine_options);
+DEFINE_I440FX_MACHINE(3, 1);
 
-static void pc_i440fx_3_0_machine_options(MachineClass *m)
+static void pc_i440fx_machine_3_0_options(MachineClass *m)
 {
-    pc_i440fx_3_1_machine_options(m);
+    pc_i440fx_machine_3_1_options(m);
     compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len);
     compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len);
 }
 
-DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0",
-                      pc_i440fx_3_0_machine_options);
+DEFINE_I440FX_MACHINE(3, 0);
 
-static void pc_i440fx_2_12_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_12_options(MachineClass *m)
 {
-    pc_i440fx_3_0_machine_options(m);
+    pc_i440fx_machine_3_0_options(m);
     m->deprecation_reason = "old and unattended - use a newer version instead";
     compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len);
     compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len);
 }
 
-DEFINE_I440FX_MACHINE(v2_12, "pc-i440fx-2.12",
-                      pc_i440fx_2_12_machine_options);
+DEFINE_I440FX_MACHINE(2, 12);
 
-static void pc_i440fx_2_11_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_11_options(MachineClass *m)
 {
-    pc_i440fx_2_12_machine_options(m);
+    pc_i440fx_machine_2_12_options(m);
     compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len);
     compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len);
 }
 
-DEFINE_I440FX_MACHINE(v2_11, "pc-i440fx-2.11",
-                      pc_i440fx_2_11_machine_options);
+DEFINE_I440FX_MACHINE(2, 11);
 
-static void pc_i440fx_2_10_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_10_options(MachineClass *m)
 {
-    pc_i440fx_2_11_machine_options(m);
+    pc_i440fx_machine_2_11_options(m);
     compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len);
     compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len);
     m->auto_enable_numa_with_memhp = false;
 }
 
-DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10",
-                      pc_i440fx_2_10_machine_options);
+DEFINE_I440FX_MACHINE(2, 10);
 
-static void pc_i440fx_2_9_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_9_options(MachineClass *m)
 {
-    pc_i440fx_2_10_machine_options(m);
+    pc_i440fx_machine_2_10_options(m);
     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_I440FX_MACHINE(v2_9, "pc-i440fx-2.9",
-                      pc_i440fx_2_9_machine_options);
+DEFINE_I440FX_MACHINE(2, 9);
 
-static void pc_i440fx_2_8_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_8_options(MachineClass *m)
 {
-    pc_i440fx_2_9_machine_options(m);
+    pc_i440fx_machine_2_9_options(m);
     compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len);
     compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len);
 }
 
-DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8",
-                      pc_i440fx_2_8_machine_options);
+DEFINE_I440FX_MACHINE(2, 8);
 
-static void pc_i440fx_2_7_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_7_options(MachineClass *m)
 {
-    pc_i440fx_2_8_machine_options(m);
+    pc_i440fx_machine_2_8_options(m);
     compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len);
     compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len);
 }
 
-DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7",
-                      pc_i440fx_2_7_machine_options);
+DEFINE_I440FX_MACHINE(2, 7);
 
-static void pc_i440fx_2_6_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_6_options(MachineClass *m)
 {
     X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
-    pc_i440fx_2_7_machine_options(m);
+    pc_i440fx_machine_2_7_options(m);
     pcmc->legacy_cpu_hotplug = true;
     x86mc->fwcfg_dma_enabled = false;
     compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len);
     compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len);
 }
 
-DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6",
-                      pc_i440fx_2_6_machine_options);
+DEFINE_I440FX_MACHINE(2, 6);
 
-static void pc_i440fx_2_5_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_5_options(MachineClass *m)
 {
     X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
 
-    pc_i440fx_2_6_machine_options(m);
+    pc_i440fx_machine_2_6_options(m);
     x86mc->save_tsc_khz = false;
     m->legacy_fw_cfg_order = 1;
     compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len);
     compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len);
 }
 
-DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5",
-                      pc_i440fx_2_5_machine_options);
+DEFINE_I440FX_MACHINE(2, 5);
 
-static void pc_i440fx_2_4_machine_options(MachineClass *m)
+static void pc_i440fx_machine_2_4_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
 
-    pc_i440fx_2_5_machine_options(m);
+    pc_i440fx_machine_2_5_options(m);
     m->hw_version = "2.4.0";
     pcmc->broken_reserved_end = true;
     compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len);
     compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len);
 }
 
-DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4",
-                      pc_i440fx_2_4_machine_options)
+DEFINE_I440FX_MACHINE(2, 4);
 
 #ifdef CONFIG_ISAPC
 static void isapc_machine_options(MachineClass *m)
@@ -833,20 +806,20 @@  DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
 #endif
 
 #ifdef CONFIG_XEN
-static void xenfv_4_2_machine_options(MachineClass *m)
+static void xenfv_machine_4_2_options(MachineClass *m)
 {
-    pc_i440fx_4_2_machine_options(m);
+    pc_i440fx_machine_4_2_options(m);
     m->desc = "Xen Fully-virtualized PC";
     m->max_cpus = HVM_MAX_VCPUS;
     m->default_machine_opts = "accel=xen,suppress-vmdesc=on";
 }
 
 DEFINE_PC_MACHINE(xenfv_4_2, "xenfv-4.2", pc_xen_hvm_init,
-                  xenfv_4_2_machine_options);
+                  xenfv_machine_4_2_options);
 
-static void xenfv_3_1_machine_options(MachineClass *m)
+static void xenfv_machine_3_1_options(MachineClass *m)
 {
-    pc_i440fx_3_1_machine_options(m);
+    pc_i440fx_machine_3_1_options(m);
     m->desc = "Xen Fully-virtualized PC";
     m->alias = "xenfv";
     m->max_cpus = HVM_MAX_VCPUS;
@@ -854,5 +827,5 @@  static void xenfv_3_1_machine_options(MachineClass *m)
 }
 
 DEFINE_PC_MACHINE(xenfv, "xenfv-3.1", pc_xen_hvm_init,
-                  xenfv_3_1_machine_options);
+                  xenfv_machine_3_1_options);
 #endif
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 46bc411063..027c6f29f7 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -317,4 +317,30 @@  extern const size_t pc_compat_2_3_len;
     } \
     type_init(pc_machine_init_##suffix)
 
+#define DEFINE_PC_VER_MACHINE(namesym, namestr, initfn, ...) \
+    static void MACHINE_VER_SYM(init, namesym, __VA_ARGS__)( \
+        MachineState *machine) \
+    { \
+        initfn(machine); \
+    } \
+    static void MACHINE_VER_SYM(class_init, namesym, __VA_ARGS__)( \
+        ObjectClass *oc, \
+        void *data) \
+    { \
+        MachineClass *mc = MACHINE_CLASS(oc); \
+        MACHINE_VER_SYM(options, namesym, __VA_ARGS__)(mc); \
+        mc->init = MACHINE_VER_SYM(init, namesym, __VA_ARGS__); \
+    } \
+    static const TypeInfo MACHINE_VER_SYM(info, namesym, __VA_ARGS__) = \
+    { \
+        .name       = MACHINE_VER_TYPE_NAME(namestr, __VA_ARGS__), \
+        .parent     = TYPE_PC_MACHINE, \
+        .class_init = MACHINE_VER_SYM(class_init, namesym, __VA_ARGS__), \
+    }; \
+    static void MACHINE_VER_SYM(register, namesym, __VA_ARGS__)(void) \
+    { \
+        type_register(&MACHINE_VER_SYM(info, namesym, __VA_ARGS__)); \
+    } \
+    type_init(MACHINE_VER_SYM(register, namesym, __VA_ARGS__));
+
 #endif