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Wed, 18 Mar 2020 04:26:39 -0700 (PDT) Received: from [192.168.178.58] ([151.21.15.43]) by smtp.gmail.com with ESMTPSA id z12sm1721100wrt.27.2020.03.18.04.26.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Mar 2020 04:26:38 -0700 (PDT) Subject: Re: [PATCH rebase] KVM: x86: Expose AVX512 VP2INTERSECT in cpuid for TGL To: Zhenyu Wang Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, "Zhong, Yang" References: <20200318032739.3745-1-zhenyuw@linux.intel.com> From: Paolo Bonzini Message-ID: <65e997c3-9ef9-d9f3-143e-0bc0823aad4f@redhat.com> Date: Wed, 18 Mar 2020 12:26:37 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200318032739.3745-1-zhenyuw@linux.intel.com> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 18/03/20 04:27, Zhenyu Wang wrote: > On Tigerlake new AVX512 VP2INTERSECT feature is available. > This trys to expose it for KVM supported cpuid. > > Cc: "Zhong, Yang" > Signed-off-by: Zhenyu Wang > --- > arch/x86/kvm/cpuid.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c > index 08280d8a2ac9..435a7da07d5f 100644 > --- a/arch/x86/kvm/cpuid.c > +++ b/arch/x86/kvm/cpuid.c > @@ -338,7 +338,7 @@ void kvm_set_cpu_caps(void) > kvm_cpu_cap_mask(CPUID_7_EDX, > F(AVX512_4VNNIW) | F(AVX512_4FMAPS) | F(SPEC_CTRL) | > F(SPEC_CTRL_SSBD) | F(ARCH_CAPABILITIES) | F(INTEL_STIBP) | > - F(MD_CLEAR) > + F(MD_CLEAR) | F(AVX512_VP2INTERSECT) > ); > > /* TSC_ADJUST and ARCH_CAPABILITIES are emulated in software. */ > Queued, thanks. Paolo