From: Paolo Bonzini <pbonzini@redhat.com>
To: Yang Zhong <yang.zhong@intel.com>,
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, seanjc@google.com,
vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com,
joro@8bytes.org, kyung.min.park@intel.com
Subject: Re: [PATCH 0/2] Enumerate and expose AVX_VNNI feature
Date: Thu, 21 Jan 2021 16:02:17 +0100 [thread overview]
Message-ID: <eee07399-df81-83ed-d410-18b42d51e26c@redhat.com> (raw)
In-Reply-To: <20210105004909.42000-1-yang.zhong@intel.com>
On 05/01/21 01:49, Yang Zhong wrote:
> 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(-)
>
Queued, thanks.
Paolo
next prev parent reply other threads:[~2021-01-21 15:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-05 0:49 [PATCH 0/2] Enumerate and expose AVX_VNNI feature Yang Zhong
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 ` Paolo Bonzini [this message]
2021-01-22 6:43 ` [PATCH 0/2] Enumerate and expose AVX_VNNI feature Yang Zhong
-- strict thread matches above, loose matches on Subject: below --
2020-12-16 2:01 Yang Zhong
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