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| author | Borislav Petkov <bp@suse.de> | 2014-06-24 13:25:03 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-07-14 12:21:39 -0700 |
| commit | 80a208bd3948aceddf0429bd9f9b4cd858d526df (patch) | |
| tree | 06bd3dd2f9f6d73ce63da9852ca7d8d57f9599c6 /arch/x86/include/asm/cpufeature.h | |
| parent | 9b13a93df267af681a66a6a738bf1af10102da7d (diff) | |
| download | blackbird-obmc-linux-80a208bd3948aceddf0429bd9f9b4cd858d526df.tar.gz blackbird-obmc-linux-80a208bd3948aceddf0429bd9f9b4cd858d526df.zip | |
x86/cpufeature: Add bug flags to /proc/cpuinfo
Dump the flags which denote we have detected and/or have applied bug
workarounds to the CPU we're executing on, in a similar manner to the
feature flags.
The advantage is that those are not accumulating over time like the CPU
features.
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1403609105-8332-2-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/cpufeature.h')
| -rw-r--r-- | arch/x86/include/asm/cpufeature.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 52df22bde0dd..327a061f32df 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -239,8 +239,8 @@ #define X86_BUG_F00F X86_BUG(0) /* Intel F00F */ #define X86_BUG_FDIV X86_BUG(1) /* FPU FDIV */ #define X86_BUG_COMA X86_BUG(2) /* Cyrix 6x86 coma */ -#define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* AMD Erratum 383 */ -#define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* AMD Erratum 400 */ +#define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* "tlb_mmatch" AMD Erratum 383 */ +#define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* "apic_c1e" AMD Erratum 400 */ #define X86_BUG_11AP X86_BUG(5) /* Bad local APIC aka 11AP */ #define X86_BUG_FXSAVE_LEAK X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */ #define X86_BUG_CLFLUSH_MONITOR X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */ @@ -253,6 +253,12 @@ extern const char * const x86_cap_flags[NCAPINTS*32]; extern const char * const x86_power_flags[32]; +/* + * In order to save room, we index into this array by doing + * X86_BUG_<name> - NCAPINTS*32. + */ +extern const char * const x86_bug_flags[NBUGINTS*32]; + #define test_cpu_cap(c, bit) \ test_bit(bit, (unsigned long *)((c)->x86_capability)) |
