| commit | 4ee5b10abeb2b5581be10d3022694cd19084e9b0 | [log] [tgz] |
|---|---|---|
| author | H. Peter Anvin <hpa@zytor.com> | Thu Sep 27 17:17:12 2007 -0700 |
| committer | H. Peter Anvin <hpa@zytor.com> | Fri Sep 28 10:12:44 2007 -0700 |
| tree | e269f4bd3570ee41b94b68974891e51ef011a9f6 | |
| parent | ff0ce6845bc18292e80ea40d11c3d3a539a3fc5e [diff] |
[x86 setup] Correct the SMAP check for INT 0x15, AX=0xe820 The e820 probe code was checking %edx, not %eax, for the SMAP signature on return. This worked on *almost* all systems, since %edx still contained SMAP from the call on entry, but on a handful of systems it failed -- plus, we would have missed real mismatches. The error output is "=d" to make sure gcc knows %edx is clobbered here. Signed-off-by: H. Peter Anvin <hpa@zytor.com>