hw/arm/virt: eliminate struct VirtGuestInfoState

Instead of allocating a new struct just for VirtGuestInfo and the
machine_done Notifier, place them inside VirtMachineState. This
is the mach-virt equivalent of "pc: Eliminate struct
PcGuestInfoState"
Suggested-by: NEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: NAndrew Jones <drjones@redhat.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Acked-by: NMichael S. Tsirkin <mst@redhat.com>
Message-id: 20170102200153.28864-8-drjones@redhat.com
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

hw/arm/virt.c

@@ -76,6 +76,8 @@ typedef struct {
 
 typedef struct {
     MachineState parent;
+    VirtGuestInfo acpi_guest_info;
+    Notifier machine_done;
     bool secure;
     bool highmem;
     int32_t gic_version;
@@ -1197,12 +1199,13 @@ static void virt_build_smbios(VirtGuestInfo *guest_info)
 }
 
 static
-void virt_guest_info_machine_done(Notifier *notifier, void *data)
+void virt_machine_done(Notifier *notifier, void *data)
 {
-    VirtGuestInfoState *guest_info_state = container_of(notifier,
-                                              VirtGuestInfoState, machine_done);
-    virt_acpi_setup(&guest_info_state->info);
-    virt_build_smbios(&guest_info_state->info);
+    VirtMachineState *vms = container_of(notifier, VirtMachineState,
+                                         machine_done);
+
+    virt_acpi_setup(&vms->acpi_guest_info);
+    virt_build_smbios(&vms->acpi_guest_info);
 }
 
 static void machvirt_init(MachineState *machine)
@@ -1215,8 +1218,7 @@ static void machvirt_init(MachineState *machine)
     int n, virt_max_cpus;
     MemoryRegion *ram = g_new(MemoryRegion, 1);
     const char *cpu_model = machine->cpu_model;
-    VirtGuestInfoState *guest_info_state = g_malloc0(sizeof *guest_info_state);
-    VirtGuestInfo *guest_info = &guest_info_state->info;
+    VirtGuestInfo *guest_info = &vms->acpi_guest_info;
     char **cpustr;
     ObjectClass *oc;
     const char *typename;
@@ -1415,8 +1417,8 @@ static void machvirt_init(MachineState *machine)
     guest_info->use_highmem = vms->highmem;
     guest_info->gic_version = vms->gic_version;
     guest_info->no_its = vmc->no_its;
-    guest_info_state->machine_done.notify = virt_guest_info_machine_done;
-    qemu_add_machine_init_done_notifier(&guest_info_state->machine_done);
+    vms->machine_done.notify = virt_machine_done;
+    qemu_add_machine_init_done_notifier(&vms->machine_done);
 
     vms->bootinfo.ram_size = machine->ram_size;
     vms->bootinfo.kernel_filename = machine->kernel_filename;

include/hw/arm/virt-acpi-build.h

@@ -34,12 +34,6 @@ typedef struct VirtGuestInfo {
     bool no_its;
 } VirtGuestInfo;
 
-
-typedef struct VirtGuestInfoState {
-    VirtGuestInfo info;
-    Notifier machine_done;
-} VirtGuestInfoState;
-
 void virt_acpi_setup(VirtGuestInfo *guest_info);
 
 #endif