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| author | H. Peter Anvin <hpa@zytor.com> | 2007-09-28 02:17:12 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2007-09-28 19:12:44 +0200 |
| commit | 4ee5b10abeb2b5581be10d3022694cd19084e9b0 (patch) | |
| tree | e269f4bd3570ee41b94b68974891e51ef011a9f6 /arch/alpha/lib/strchr.S | |
| parent | Revert "[PATCH] x86-64: fix x86_64-mm-sched-clock-share" (diff) | |
| download | linux-4ee5b10abeb2b5581be10d3022694cd19084e9b0.tar.xz linux-4ee5b10abeb2b5581be10d3022694cd19084e9b0.zip | |
[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>
Diffstat (limited to 'arch/alpha/lib/strchr.S')
0 files changed, 0 insertions, 0 deletions