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Check opcode for short jump as well. Some option ROMs do short jumps

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(e.g., some NVIDIA video cards) and we were not able to do POST while
resuming because we only honored long jump.

MFC after:	3 days
This commit is contained in:
jkim 2010-08-25 20:52:40 +00:00
parent 9f660f20bb
commit 8c8d33fe9f
1 changed files with 2 additions and 1 deletions
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3
sys/compat/x86bios/x86bios.c
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@ -801,7 +801,8 @@ x86bios_get_orm(uint32_t offset)
/* Does the shadow ROM contain BIOS POST code for x86? */
p = x86bios_offset(offset);
if (p == NULL || p[0] != 0x55 || p[1] != 0xaa || p[3] != 0xe9)
if (p == NULL || p[0] != 0x55 || p[1] != 0xaa ||
(p[3] != 0xe9 && p[3] != 0xeb))
return (NULL);
return (p);