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vga: make vram size configurable

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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>
This commit is contained in:
Gerd Hoffmann 2012-05-24 09:59:44 +02:00
parent e9c6149f6a
commit 4a1e244eb6
8 changed files with 50 additions and 14 deletions
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4
hw/vga_int.h
View file

@ -107,6 +107,7 @@ typedef struct VGACommonState {
MemoryRegion vram;
MemoryRegion vram_vbe;
uint32_t vram_size;
uint32_t vram_size_mb; /* property */
uint32_t latch;
MemoryRegion *chain4_alias;
uint8_t sr_index;
@ -184,7 +185,7 @@ static inline int c6_to_8(int v)
return (v << 2) | (b << 1) | b;
}
void vga_common_init(VGACommonState *s, int vga_ram_size);
void vga_common_init(VGACommonState *s);
void vga_init(VGACommonState *s, MemoryRegion *address_space,
MemoryRegion *address_space_io, bool init_vga_ports);
MemoryRegion *vga_init_io(VGACommonState *s,
@ -209,7 +210,6 @@ void vga_init_vbe(VGACommonState *s, MemoryRegion *address_space);
extern const uint8_t sr_mask[8];
extern const uint8_t gr_mask[16];
#define VGA_RAM_SIZE (8192 * 1024)
#define VGABIOS_FILENAME "vgabios.bin"
#define VGABIOS_CIRRUS_FILENAME "vgabios-cirrus.bin"