vga: make vram size configurable

Zap the global VGA_RAM_SIZE #define, make the vga ram size configurable
for standard vga and vmware vga.  cirrus and qxl are left with a fixed
size (and private VGA_RAM_SIZE #define) for now.

qxl needs some non-trivial adjustments in the mode list handling deal
with a runtime-configurable size, which calls for a separate qxl patch.

cirrus emulates cards which have 2 MB (isa) and 4 MB (pci), so I guess
it would make sense to use these sizes.  That change would break
migration though, so I left it fixed at 8 MB size.  Making it
configurabls is pretty pointless for cirrus as we have to match real
hardware.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/hw/vga-isa-mm.c b/hw/vga-isa-mm.c
index f8984c6..44ae7d9 100644
--- a/hw/vga-isa-mm.c
+++ b/hw/vga-isa-mm.c
@@ -28,6 +28,8 @@
 #include "pixel_ops.h"
 #include "qemu-timer.h"
 
+#define VGA_RAM_SIZE (8192 * 1024)
+
 typedef struct ISAVGAMMState {
     VGACommonState vga;
     int it_shift;
@@ -128,7 +130,8 @@ int isa_vga_mm_init(target_phys_addr_t vram_base,
 
     s = g_malloc0(sizeof(*s));
 
-    vga_common_init(&s->vga, VGA_RAM_SIZE);
+    s->vga.vram_size_mb = VGA_RAM_SIZE >> 20;
+    vga_common_init(&s->vga);
     vga_mm_init(s, vram_base, ctrl_base, it_shift, address_space);
 
     s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,