KVM: x86: expose AVX512_BF16 feature to guest

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AVX512 BFLOAT16 instructions support 16-bit BFLOAT16 floating-point
format (BF16) for deep learning optimization.

Intel adds AVX512 BFLOAT16 feature in CooperLake, which is CPUID.7.1.EAX[5].

Detailed information of the CPUID bit can be found here,
https://software.intel.com/sites/default/files/managed/c5/15/\
architecture-instruction-set-extensions-programming-reference.pdf.

Signed-off-by: Jing Liu <jing2.liu@linux.intel.com>
[Fix type mismatch in min, changing constant "1" to "1u". - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Jing Liu 2019-07-11 13:49:57 +08:00 • committed by Paolo Bonzini

parent 964a4eacef

commit 0b77462951

1 changed files with 11 additions and 1 deletions

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arch/x86/kvm/cpuid.c

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