Firmware images smaller than the bios memory region (0xe0000 -> 0xfffff)
must be mapped at the end if the region because the x86 cpu reset vector
is 0xffff0.
Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
---
x86/boot.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/x86/boot.c b/x86/boot.c
index 61535eb57b..b7a4262d89 100644
--- a/x86/boot.c
+++ b/x86/boot.c
@@ -28,7 +28,7 @@ bool kvm__load_firmware(struct kvm *kvm, const char *firmware_filename)
if (st.st_size > MB_FIRMWARE_BIOS_SIZE)
die("firmware image %s is too big to fit in memory (%Lu KB).\n", firmware_filename, (u64)(st.st_size / 1024));
- p = guest_flat_to_host(kvm, MB_FIRMWARE_BIOS_BEGIN);
+ p = guest_flat_to_host(kvm, MB_BIOS_END + 1 - st.st_size);
while ((nr = read(fd, p, st.st_size)) > 0)
p += nr;
--
2.9.3
