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author | Paolo Bonzini <pbonzini@redhat.com> | 2020-08-09 13:04:56 -0400 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-08-09 13:08:54 -0400 |
commit | 43bd9ef42b3b862c97f1f4e86bf3ace890bef924 (patch) | |
tree | 33ebc7e27d4e0ebce65b8bdb4069f11e4b31bd11 /arch/powerpc/perf | |
parent | 0378daef0c6cf1c2ba525bde0b529f0d4ef5233b (diff) | |
download | linux-43bd9ef42b3b862c97f1f4e86bf3ace890bef924.tar.bz2 |
x86: Expose SERIALIZE for supported cpuid
The SERIALIZE instruction is supported by Tntel processors, like
Sapphire Rapids. SERIALIZE is a faster serializing instruction which
does not modify registers, arithmetic flags or memory, will not cause VM
exit. It's availability is indicated by CPUID.(EAX=7,ECX=0):ECX[bit 14].
Expose it in KVM supported CPUID. This way, KVM could pass this
information to guests and they can make use of these features accordingly.
Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/powerpc/perf')
0 files changed, 0 insertions, 0 deletions