From: Yang Zhong <yang.zhong@intel.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org, kvm@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, tony.luck@intel.com, pbonzini@redhat.com,
seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com,
jmattson@google.com, joro@8bytes.org, kyung.min.park@intel.com,
yang.zhong@intel.com
Subject: [PATCH 0/2] Enumerate and expose AVX_VNNI feature
Date: Tue, 5 Jan 2021 08:49:07 +0800 [thread overview]
Message-ID: <20210105004909.42000-1-yang.zhong@intel.com> (raw)
A processor supports AVX_VNNI instructions if CPUID.(EAX=7,ECX=1):EAX[bit 4]
is present.
This series includes kernel and kvm patches, kernel patch define this
new cpu feature bit and kvm expose this bit to guest. When this bit is
enabled on cpu or vcpu, the cpu feature flag is shown as "avx_vnni" in
/proc/cpuinfo of host and guest.
Detailed information on the instruction and CPUID feature flag can be
found in the latest "extensions" manual [1].
Reference:
[1]. https://software.intel.com/content/www/us/en/develop/download/intel-architecture-instruction-set-extensions-programming-reference.html
Kyung Min Park (1):
Enumerate AVX Vector Neural Network instructions
Yang Zhong (1):
KVM: Expose AVX_VNNI instruction to guset
arch/x86/include/asm/cpufeatures.h | 1 +
arch/x86/kvm/cpuid.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
--
2.29.2.334.gfaefdd61ec
next reply other threads:[~2021-01-05 1:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-05 0:49 Yang Zhong [this message]
2021-01-05 0:49 ` [PATCH 1/2] Enumerate AVX Vector Neural Network instructions Yang Zhong
2021-01-05 11:47 ` Paolo Bonzini
2021-01-05 12:14 ` Borislav Petkov
2021-01-12 2:13 ` Yang Zhong
2021-01-13 12:54 ` Paolo Bonzini
2021-01-05 0:49 ` [PATCH 2/2] KVM: Expose AVX_VNNI instruction to guset Yang Zhong
2021-01-21 15:02 ` [PATCH 0/2] Enumerate and expose AVX_VNNI feature Paolo Bonzini
2021-01-22 6:43 ` Yang Zhong
-- strict thread matches above, loose matches on Subject: below --
2020-12-16 2:01 Yang Zhong
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