linux-kernel - [PATCH] KVM: x86: Expose AVX512 VP2INTERSECT in cpuid for TGL

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Date:   Tue, 17 Mar 2020 14:55:53 +0800
From:   Zhenyu Wang <zhenyuw@...ux.intel.com>
To:     pbonzini@...hat.com
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Zhong, Yang" <yang.zhong@...el.com>
Subject: [PATCH] KVM: x86: Expose AVX512 VP2INTERSECT in cpuid for TGL

On Tigerlake new AVX512 VP2INTERSECT feature is available.
This would expose it for KVM supported cpuid.

Cc: "Zhong, Yang" <yang.zhong@...el.com>
Signed-off-by: Zhenyu Wang <zhenyuw@...ux.intel.com>
---
 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 b1c469446b07..b4e25ff6ab0a 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -374,7 +374,7 @@ static inline void do_cpuid_7_mask(struct kvm_cpuid_entry2 *entry, int index)
 	const u32 kvm_cpuid_7_0_edx_x86_features =
 		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);
 
 	/* cpuid 7.1.eax */
 	const u32 kvm_cpuid_7_1_eax_x86_features =
-- 
2.25.0.rc2