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| author | Ingo Molnar <mingo@elte.hu> | 2008-02-01 23:45:18 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-02-02 10:00:26 +1100 |
| commit | aa6299926950c8dfe2fea638276cad6def092bc9 (patch) | |
| tree | 5fe27952926b60302ea43212e8ed6640c444812d | |
| parent | f3191248bf1bf6627c04c5624904df45e0a979ed (diff) | |
| download | linux-aa6299926950c8dfe2fea638276cad6def092bc9.tar.gz | |
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: Ingo Molnar <mingo@elte.hu> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/x86/kernel/cpu/amd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 06fa159232fd..693e353999cd 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -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); } |