Commit aa629992 authored by Ingo Molnar's avatar Ingo Molnar Committed by Linus Torvalds

x86: fix bootup crash in native_read_tsc()

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: default avatarIngo Molnar <mingo@elte.hu>
Acked-by: default avatarH. Peter Anvin <hpa@zytor.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f3191248
...@@ -304,7 +304,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) ...@@ -304,7 +304,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
if (c->x86 < 6) if (c->x86 < 6)
clear_bit(X86_FEATURE_MCE, c->x86_capability); 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); set_bit(X86_FEATURE_MFENCE_RDTSC, c->x86_capability);
} }
......
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