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-rw-r--r--hw/vga.c7
-rw-r--r--hw/vga_int.h1
2 files changed, 7 insertions, 1 deletions
diff --git a/hw/vga.c b/hw/vga.c
index 5824f85..d784df7 100644
--- a/hw/vga.c
+++ b/hw/vga.c
@@ -2357,10 +2357,15 @@ void vga_init(VGACommonState *s, MemoryRegion *address_space,
void vga_init_vbe(VGACommonState *s, MemoryRegion *system_memory)
{
#ifdef CONFIG_BOCHS_VBE
+ /* With pc-0.12 and below we map both the PCI BAR and the fixed VBE region,
+ * so use an alias to avoid double-mapping the same region.
+ */
+ memory_region_init_alias(&s->vram_vbe, "vram.vbe",
+ &s->vram, 0, memory_region_size(&s->vram));
/* XXX: use optimized standard vga accesses */
memory_region_add_subregion(system_memory,
VBE_DISPI_LFB_PHYSICAL_ADDRESS,
- &s->vram);
+ &s->vram_vbe);
s->vbe_mapped = 1;
#endif
}
diff --git a/hw/vga_int.h b/hw/vga_int.h
index 7685b2b..d244d8f 100644
--- a/hw/vga_int.h
+++ b/hw/vga_int.h
@@ -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;