diff options
| author | Jan Beulich <jbeulich@suse.com> | 2019-07-17 15:41:20 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2019-07-17 15:41:20 +0200 |
| commit | fe3a0b15ef9c17b8788fb5cda3fd6d98d5f6e448 (patch) | |
| tree | 661d99b871763e66b0bb522331ff0e40bfa8571c /xen/include/asm-x86/cpufeature.h | |
| parent | 0dffe771ee4901bc4bd59ce41b218fd7c4a28b02 (diff) | |
x86emul: support VPCLMULQDQ insns
As to the feature dependency adjustment, while strictly speaking AVX is
a sufficient prereq (to have YMM registers), 256-bit vectors of integers
have got fully introduced with AVX2 only. Sadly gcc can't be used as a
reference here: They don't provide any AVX512-independent built-in at
all.
Along the lines of PCLMULQDQ, since the insns here and in particular
their memory access patterns follow the usual scheme, I didn't think it
was necessary to add a contrived test specifically for them, beyond the
Disp8 scaling one.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Diffstat (limited to 'xen/include/asm-x86/cpufeature.h')
| -rw-r--r-- | xen/include/asm-x86/cpufeature.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/xen/include/asm-x86/cpufeature.h b/xen/include/asm-x86/cpufeature.h index aa2d7e7e05..eab9ecaf76 100644 --- a/xen/include/asm-x86/cpufeature.h +++ b/xen/include/asm-x86/cpufeature.h @@ -111,6 +111,7 @@ /* CPUID level 0x00000007:0.ecx */ #define cpu_has_avx512_vbmi boot_cpu_has(X86_FEATURE_AVX512_VBMI) #define cpu_has_avx512_vbmi2 boot_cpu_has(X86_FEATURE_AVX512_VBMI2) +#define cpu_has_vpclmulqdq boot_cpu_has(X86_FEATURE_VPCLMULQDQ) #define cpu_has_avx512_vnni boot_cpu_has(X86_FEATURE_AVX512_VNNI) #define cpu_has_avx512_bitalg boot_cpu_has(X86_FEATURE_AVX512_BITALG) #define cpu_has_avx512_vpopcntdq boot_cpu_has(X86_FEATURE_AVX512_VPOPCNTDQ) |