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x86: fix bootup crash in native_read_tsc()

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fix bootup crash in native_read_tsc() that was reported on an Athlon-XP
and bisected. The correct feature boundary for X86_FEATURE_MFENCE_RDTSC
is not XMM but XMM2.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ingo Molnar 2008-02-01 23:45:18 +01:00 committed by Linus Torvalds
parent f3191248bf
commit aa62999269
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/cpu/amd.c
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@ -304,7 +304,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
if (c->x86 < 6)
clear_bit(X86_FEATURE_MCE, c->x86_capability);
if (cpu_has_xmm)
if (cpu_has_xmm2)
set_bit(X86_FEATURE_MFENCE_RDTSC, c->x86_capability);
}