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vga: fix vram double-mapping with -vga std and -M pc-0.12

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With pc-0.12, we map the video RAM both through the PCI BAR (the guest does
this) and through a fixed mapping at 0xe0000000.  The memory API doesn't allow
this double map, and aborts.

Fix by using an alias.

Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Avi Kivity 2012-05-09 18:23:06 +03:00 • committed by Anthony Liguori
parent 1c4ad9d2b4
commit 8294a64d7f
2 changed files with 7 additions and 1 deletions
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1
hw/vga_int.h
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@ -105,6 +105,7 @@ typedef struct VGACommonState {
MemoryRegion *legacy_address_space;
uint8_t *vram_ptr;
MemoryRegion vram;
MemoryRegion vram_vbe;
uint32_t vram_size;
uint32_t latch;
MemoryRegion *chain4_alias;