diff options
| author | Borislav Petkov (AMD) <bp@alien8.de> | 2025-09-24 14:59:35 +0200 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-10-13 16:21:25 +0200 |
| commit | ddde4abaa0ecc8395e0fcfa3e92f65d481890cc8 (patch) | |
| tree | 8c2d2037bc4c36c849405c0a6701ff61a30bd56b /tools | |
| parent | 3a8660878839faadb4f1a6dd72c3179c1df56787 (diff) | |
x86/cpufeatures: Make X86_FEATURE leaf 17 Linux-specific
That cpuinfo_x86.x86_capability[] element was supposed to mirror CPUID flags
from CPUID_0x80000007_EBX but that leaf has still to this day only three bits
defined in it. So move those bits to scattered.c and free the capability
element for synthetic flags.
No functional changes.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/arch/x86/include/asm/cpufeatures.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h index 06fc0479a23f..bd655e100395 100644 --- a/tools/arch/x86/include/asm/cpufeatures.h +++ b/tools/arch/x86/include/asm/cpufeatures.h @@ -407,9 +407,12 @@ #define X86_FEATURE_ENQCMD (16*32+29) /* "enqcmd" ENQCMD and ENQCMDS instructions */ #define X86_FEATURE_SGX_LC (16*32+30) /* "sgx_lc" Software Guard Extensions Launch Control */ -/* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */ +/* + * Linux-defined word for use with scattered/synthetic bits. + */ #define X86_FEATURE_OVERFLOW_RECOV (17*32+ 0) /* "overflow_recov" MCA overflow recovery support */ #define X86_FEATURE_SUCCOR (17*32+ 1) /* "succor" Uncorrectable error containment and recovery */ + #define X86_FEATURE_SMCA (17*32+ 3) /* "smca" Scalable MCA */ /* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */ |