From: Zhenyu Wang <zhenyuw@linux.intel.com>
To: pbonzini@redhat.com
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] KVM: x86: Expose fast short REP MOV for supported cpuid
Date: Mon, 23 Mar 2020 17:22:36 +0800 [thread overview]
Message-ID: <20200323092236.3703-1-zhenyuw@linux.intel.com> (raw)
For CPU supporting fast short REP MOV (XF86_FEATURE_FSRM) e.g Icelake,
Tigerlake, expose it in KVM supported cpuid as well.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.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 435a7da07d5f..cf6da12bd17a 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(AVX512_VP2INTERSECT)
+ F(MD_CLEAR) | F(AVX512_VP2INTERSECT) | F(FSRM)
);
/* TSC_ADJUST and ARCH_CAPABILITIES are emulated in software. */
--
2.25.1
next reply other threads:[~2020-03-23 9:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-23 9:22 Zhenyu Wang [this message]
2020-03-23 12:58 ` Paolo Bonzini
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