From f8df91e73a6827a4569bb56cd53e55b4ea2f5b1f Mon Sep 17 00:00:00 2001 From: Jim Mattson Date: Thu, 1 Sep 2022 14:18:06 -0700 Subject: x86/cpufeatures: Add macros for Intel's new fast rep string features KVM_GET_SUPPORTED_CPUID should reflect these host CPUID bits. The bits are already cached in word 12. Give the bits X86_FEATURE names, so that they can be easily referenced. Hide these bits from /proc/cpuinfo, since the host kernel makes no use of them at present. Signed-off-by: Jim Mattson Reviewed-by: Sean Christopherson Link: https://lore.kernel.org/r/20220901211811.2883855-1-jmattson@google.com Signed-off-by: Sean Christopherson --- arch/x86/include/asm/cpufeatures.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/x86/include/asm/cpufeatures.h') diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 61012476d66e..cdb7e1492311 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -312,6 +312,9 @@ #define X86_FEATURE_AVX_VNNI (12*32+ 4) /* AVX VNNI instructions */ #define X86_FEATURE_AVX512_BF16 (12*32+ 5) /* AVX512 BFLOAT16 instructions */ #define X86_FEATURE_CMPCCXADD (12*32+ 7) /* "" CMPccXADD instructions */ +#define X86_FEATURE_FZRM (12*32+10) /* "" Fast zero-length REP MOVSB */ +#define X86_FEATURE_FSRS (12*32+11) /* "" Fast short REP STOSB */ +#define X86_FEATURE_FSRC (12*32+12) /* "" Fast short REP {CMPSB,SCASB} */ #define X86_FEATURE_AMX_FP16 (12*32+21) /* "" AMX fp16 Support */ #define X86_FEATURE_AVX_IFMA (12*32+23) /* "" Support for VPMADD52[H,L]UQ */ -- cgit v1.2.3