pc: create custom generic PC machine type

it will be used for PC specific options/variables

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/i386/pc.c

@@ -1455,3 +1455,60 @@ void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name)
         gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i);
     }
 }
+
+static void pc_generic_machine_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    QEMUMachine *qm = data;
+
+    mc->name = qm->name;
+    mc->alias = qm->alias;
+    mc->desc = qm->desc;
+    mc->init = qm->init;
+    mc->reset = qm->reset;
+    mc->hot_add_cpu = qm->hot_add_cpu;
+    mc->kvm_type = qm->kvm_type;
+    mc->block_default_type = qm->block_default_type;
+    mc->max_cpus = qm->max_cpus;
+    mc->no_serial = qm->no_serial;
+    mc->no_parallel = qm->no_parallel;
+    mc->use_virtcon = qm->use_virtcon;
+    mc->use_sclp = qm->use_sclp;
+    mc->no_floppy = qm->no_floppy;
+    mc->no_cdrom = qm->no_cdrom;
+    mc->no_sdcard = qm->no_sdcard;
+    mc->is_default = qm->is_default;
+    mc->default_machine_opts = qm->default_machine_opts;
+    mc->default_boot_order = qm->default_boot_order;
+    mc->compat_props = qm->compat_props;
+    mc->hw_version = qm->hw_version;
+}
+
+void qemu_register_pc_machine(QEMUMachine *m)
+{
+    char *name = g_strconcat(m->name, TYPE_MACHINE_SUFFIX, NULL);
+    TypeInfo ti = {
+        .name       = name,
+        .parent     = TYPE_PC_MACHINE,
+        .class_init = pc_generic_machine_class_init,
+        .class_data = (void *)m,
+    };
+
+    type_register(&ti);
+    g_free(name);
+}
+
+static const TypeInfo pc_machine_info = {
+    .name = TYPE_PC_MACHINE,
+    .parent = TYPE_MACHINE,
+    .abstract = true,
+    .instance_size = sizeof(PCMachineState),
+    .class_size = sizeof(PCMachineClass),
+};
+
+static void pc_machine_register_types(void)
+{
+    type_register_static(&pc_machine_info);
+}
+
+type_init(pc_machine_register_types)

hw/i386/pc_piix.c

@@ -843,25 +843,25 @@ static QEMUMachine xenfv_machine = {
 
 static void pc_machine_init(void)
 {
-    qemu_register_machine(&pc_i440fx_machine_v2_1);
-    qemu_register_machine(&pc_i440fx_machine_v2_0);
-    qemu_register_machine(&pc_i440fx_machine_v1_7);
-    qemu_register_machine(&pc_i440fx_machine_v1_6);
-    qemu_register_machine(&pc_i440fx_machine_v1_5);
-    qemu_register_machine(&pc_i440fx_machine_v1_4);
-    qemu_register_machine(&pc_machine_v1_3);
-    qemu_register_machine(&pc_machine_v1_2);
-    qemu_register_machine(&pc_machine_v1_1);
-    qemu_register_machine(&pc_machine_v1_0);
-    qemu_register_machine(&pc_machine_v0_15);
-    qemu_register_machine(&pc_machine_v0_14);
-    qemu_register_machine(&pc_machine_v0_13);
-    qemu_register_machine(&pc_machine_v0_12);
-    qemu_register_machine(&pc_machine_v0_11);
-    qemu_register_machine(&pc_machine_v0_10);
-    qemu_register_machine(&isapc_machine);
+    qemu_register_pc_machine(&pc_i440fx_machine_v2_1);
+    qemu_register_pc_machine(&pc_i440fx_machine_v2_0);
+    qemu_register_pc_machine(&pc_i440fx_machine_v1_7);
+    qemu_register_pc_machine(&pc_i440fx_machine_v1_6);
+    qemu_register_pc_machine(&pc_i440fx_machine_v1_5);
+    qemu_register_pc_machine(&pc_i440fx_machine_v1_4);
+    qemu_register_pc_machine(&pc_machine_v1_3);
+    qemu_register_pc_machine(&pc_machine_v1_2);
+    qemu_register_pc_machine(&pc_machine_v1_1);
+    qemu_register_pc_machine(&pc_machine_v1_0);
+    qemu_register_pc_machine(&pc_machine_v0_15);
+    qemu_register_pc_machine(&pc_machine_v0_14);
+    qemu_register_pc_machine(&pc_machine_v0_13);
+    qemu_register_pc_machine(&pc_machine_v0_12);
+    qemu_register_pc_machine(&pc_machine_v0_11);
+    qemu_register_pc_machine(&pc_machine_v0_10);
+    qemu_register_pc_machine(&isapc_machine);
 #ifdef CONFIG_XEN
-    qemu_register_machine(&xenfv_machine);
+    qemu_register_pc_machine(&xenfv_machine);
 #endif
 }
 

hw/i386/pc_q35.c

@@ -384,12 +384,12 @@ static QEMUMachine pc_q35_machine_v1_4 = {
 
 static void pc_q35_machine_init(void)
 {
-    qemu_register_machine(&pc_q35_machine_v2_1);
-    qemu_register_machine(&pc_q35_machine_v2_0);
-    qemu_register_machine(&pc_q35_machine_v1_7);
-    qemu_register_machine(&pc_q35_machine_v1_6);
-    qemu_register_machine(&pc_q35_machine_v1_5);
-    qemu_register_machine(&pc_q35_machine_v1_4);
+    qemu_register_pc_machine(&pc_q35_machine_v2_1);
+    qemu_register_pc_machine(&pc_q35_machine_v2_0);
+    qemu_register_pc_machine(&pc_q35_machine_v1_7);
+    qemu_register_pc_machine(&pc_q35_machine_v1_6);
+    qemu_register_pc_machine(&pc_q35_machine_v1_5);
+    qemu_register_pc_machine(&pc_q35_machine_v1_4);
 }
 
 machine_init(pc_q35_machine_init);

include/hw/i386/pc.h

@@ -12,9 +12,33 @@
 #include "qemu/bitmap.h"
 #include "sysemu/sysemu.h"
 #include "hw/pci/pci.h"
+#include "hw/boards.h"
 
 #define HPET_INTCAP "hpet-intcap"
 
+struct PCMachineState {
+    /*< private >*/
+    MachineState parent_obj;
+};
+
+struct PCMachineClass {
+    /*< private >*/
+    MachineClass parent_class;
+};
+
+typedef struct PCMachineState PCMachineState;
+typedef struct PCMachineClass PCMachineClass;
+
+#define TYPE_PC_MACHINE "generic-pc-machine"
+#define PC_MACHINE(obj) \
+    OBJECT_CHECK(PCMachineState, (obj), TYPE_PC_MACHINE)
+#define PC_MACHINE_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(PCMachineClass, (obj), TYPE_PC_MACHINE)
+#define PC_MACHINE_CLASS(klass) \
+    OBJECT_CLASS_CHECK(PCMachineClass, (klass), TYPE_PC_MACHINE)
+
+void qemu_register_pc_machine(QEMUMachine *m);
+
 /* PC-style peripherals (also used by other machines).  */
 
 typedef struct PcPciInfo {