vga: split vga_{load, save} into pci and common parts

Once there adjust VGAState <-> VGACommonState
Export vga_common_save/vga_common_load (nreeded by wmvare_vga
Remove vga.pci_dev field, it is not needed anymore

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

hw/vga.c

@@ -2126,14 +2126,11 @@ static CPUWriteMemoryFunc * const vga_mem_write[3] = {
     vga_mem_writel,
 };
 
-static void vga_save(QEMUFile *f, void *opaque)
+void vga_common_save(QEMUFile *f, void *opaque)
 {
-    VGAState *s = opaque;
+    VGACommonState *s = opaque;
     int i;
 
-    if (s->pci_dev)
-        pci_device_save(s->pci_dev, f);
-
     qemu_put_be32s(f, &s->latch);
     qemu_put_8s(f, &s->sr_index);
     qemu_put_buffer(f, s->sr, 8);
@@ -2170,20 +2167,14 @@ static void vga_save(QEMUFile *f, void *opaque)
 #endif
 }
 
-static int vga_load(QEMUFile *f, void *opaque, int version_id)
+int vga_common_load(QEMUFile *f, void *opaque, int version_id)
 {
-    VGAState *s = opaque;
+    VGACommonState *s = opaque;
-    int is_vbe, i, ret;
+    int is_vbe, i;
 
     if (version_id > 2)
         return -EINVAL;
 
-    if (s->pci_dev && version_id >= 2) {
-        ret = pci_device_load(s->pci_dev, f);
-        if (ret < 0)
-            return ret;
-    }
-
     qemu_get_be32s(f, &s->latch);
     qemu_get_8s(f, &s->sr_index);
     qemu_get_buffer(f, s->sr, 8);
@@ -2229,9 +2220,33 @@ static int vga_load(QEMUFile *f, void *opaque, int version_id)
 
 typedef struct PCIVGAState {
     PCIDevice dev;
-    VGAState vga;
+    VGACommonState vga;
 } PCIVGAState;
 
+static void pci_vga_save(QEMUFile *f, void *opaque)
+{
+    PCIVGAState *s = opaque;
+
+    pci_device_save(&s->dev, f);
+    vga_common_save(f, &s->vga);
+}
+
+static int pci_vga_load(QEMUFile *f, void *opaque, int version_id)
+{
+    PCIVGAState *s = opaque;
+    int ret;
+
+    if (version_id > 2)
+        return -EINVAL;
+
+    if (version_id >= 2) {
+        ret = pci_device_load(&s->dev, f);
+        if (ret < 0)
+            return ret;
+    }
+    return vga_common_load(f, &s->vga, version_id);
+}
+
 void vga_dirty_log_start(VGAState *s)
 {
     if (kvm_enabled() && s->map_addr)
@@ -2315,7 +2330,6 @@ void vga_init(VGAState *s)
     int vga_io_memory;
 
     qemu_register_reset(vga_reset, s);
-    register_savevm("vga", 0, 2, vga_save, vga_load, s);
 
     register_ioport_write(0x3c0, 16, 1, vga_ioport_write, s);
 
@@ -2428,7 +2442,7 @@ static void vga_mm_init(VGAState *s, target_phys_addr_t vram_base,
     s_ioport_ctrl = cpu_register_io_memory(vga_mm_read_ctrl, vga_mm_write_ctrl, s);
     vga_io_memory = cpu_register_io_memory(vga_mem_read, vga_mem_write, s);
 
-    register_savevm("vga", 0, 2, vga_save, vga_load, s);
+    register_savevm("vga", 0, 2, vga_common_save, vga_common_load, s);
 
     cpu_register_physical_memory(ctrl_base, 0x100000, s_ioport_ctrl);
     s->bank_offset = 0;
@@ -2444,6 +2458,7 @@ int isa_vga_init(void)
 
     vga_common_init(s, VGA_RAM_SIZE);
     vga_init(s);
+    register_savevm("vga", 0, 2, vga_common_save, vga_common_load, s);
 
     s->ds = graphic_console_init(s->update, s->invalidate,
                                  s->screen_dump, s->text_update, s);
@@ -2497,7 +2512,8 @@ static int pci_vga_initfn(PCIDevice *dev)
      // vga + console init
      vga_common_init(s, VGA_RAM_SIZE);
      vga_init(s);
-     s->pci_dev = &d->dev;
+     register_savevm("vga", 0, 2, pci_vga_save, pci_vga_load, d);
+
      s->ds = graphic_console_init(s->update, s->invalidate,
                                   s->screen_dump, s->text_update, s);
 

hw/vga_int.h

@@ -110,7 +110,6 @@ typedef struct VGACommonState {
     uint32_t bios_offset;
     uint32_t bios_size;
     int it_shift;
-    PCIDevice *pci_dev;
     uint32_t latch;
     uint8_t sr_index;
     uint8_t sr[256];
@@ -194,6 +193,8 @@ void vga_common_reset(VGACommonState *s);
 
 void vga_dirty_log_start(VGACommonState *s);
 
+void vga_common_save(QEMUFile *f, void *opaque);
+int vga_common_load(QEMUFile *f, void *opaque, int version_id);
 uint32_t vga_ioport_read(void *opaque, uint32_t addr);
 void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val);
 uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr);

hw/vmware_vga.c

@@ -1131,6 +1131,7 @@ static void vmsvga_init(struct vmsvga_state_s *s, int vga_ram_size)
 #ifdef EMBED_STDVGA
     vga_common_init(&s->vga, vga_ram_size);
     vga_init(&s->vga);
+    register_savevm("vga", 0, 2, vga_common_save, vga_common_load, &s->vga);
 #else
     s->vram_size = vga_ram_size;
     s->vram_offset = qemu_ram_alloc(vga_ram_size);