From: Chuan-kai Lin <[EMAIL PROTECTED]>
This patch is based on the one Anthony Liguori submitted to kvm-devel
on July 2nd, which fixes PXE booting with KVM enabled but breaks PXE
booting when not using KVM. I simplified Anthony's patch and
duplicated the cpu_register_physical_memory call to ensure that the
code retains its original behavior when kvm_allowed is 0.
Signed-off-by: Chuan-kai Lin <[EMAIL PROTECTED]>
---
diff -r 3aba64456000 qemu/hw/pc.c
--- a/qemu/hw/pc.c Fri Aug 10 11:33:03 2007 -0700
+++ b/qemu/hw/pc.c Fri Aug 10 14:53:28 2007 -0700
@@ -566,8 +566,15 @@ static void pc_init1(int ram_size, int v
fprintf(stderr, "Too many option ROMS\n");
exit(1);
}
- cpu_register_physical_memory(0xd0000 + option_rom_offset,
- size, offset | IO_MEM_ROM);
+ if (kvm_allowed) {
+ memcpy(phys_ram_base + 0xc0000 + offset - bios_offset,
+ phys_ram_base + offset, size);
+ cpu_register_physical_memory(0xd0000 + option_rom_offset,
+ size, (offset - bios_offset) |
IO_MEM_ROM);
+ }
+ else
+ cpu_register_physical_memory(0xd0000 + option_rom_offset,
+ size, offset | IO_MEM_ROM);
option_rom_offset += size + 2047;
option_rom_offset -= (option_rom_offset % 2048);
}
--
Chuan-kai Lin
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