target-arm: Add virt class and machine types

Switch virt qemu machine support to use the newer object type, class, and
instance model.  Added virt TypeInfo with static registration along with virt
specific class and machine structs.  Also added virt class initialization
method.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-7-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/virt.c

@@ -86,6 +86,23 @@ typedef struct VirtBoardInfo {
     uint32_t clock_phandle;
 } VirtBoardInfo;
 
+typedef struct {
+    MachineClass parent;
+    VirtBoardInfo *daughterboard;
+} VirtMachineClass;
+
+typedef struct {
+    MachineState parent;
+} VirtMachineState;
+
+#define TYPE_VIRT_MACHINE   "virt"
+#define VIRT_MACHINE(obj) \
+    OBJECT_CHECK(VirtMachineState, (obj), TYPE_VIRT_MACHINE)
+#define VIRT_MACHINE_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(VirtMachineClass, obj, TYPE_VIRT_MACHINE)
+#define VIRT_MACHINE_CLASS(klass) \
+    OBJECT_CLASS_CHECK(VirtMachineClass, klass, TYPE_VIRT_MACHINE)
+
 /* Addresses and sizes of our components.
  * 0..128MB is space for a flash device so we can run bootrom code such as UEFI.
  * 128MB..256MB is used for miscellaneous device I/O.
@@ -615,16 +632,27 @@ static void machvirt_init(MachineState *machine)
     arm_load_kernel(ARM_CPU(first_cpu), &vbi->bootinfo);
 }
 
-static QEMUMachine machvirt_a15_machine = {
-    .name = "virt",
-    .desc = "ARM Virtual Machine",
-    .init = machvirt_init,
-    .max_cpus = 8,
+static void virt_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    mc->name = TYPE_VIRT_MACHINE;
+    mc->desc = "ARM Virtual Machine",
+    mc->init = machvirt_init;
+    mc->max_cpus = 8;
+}
+
+static const TypeInfo machvirt_info = {
+    .name = TYPE_VIRT_MACHINE,
+    .parent = TYPE_MACHINE,
+    .instance_size = sizeof(VirtMachineState),
+    .class_size = sizeof(VirtMachineClass),
+    .class_init = virt_class_init,
 };
 
 static void machvirt_machine_init(void)
 {
-    qemu_register_machine(&machvirt_a15_machine);
+    type_register_static(&machvirt_info);
 }
 
 machine_init(machvirt_machine_init);