From a17f32270af1e1054bbc8858b0f27226a2c859ba Mon Sep 17 00:00:00 2001 From: Piotr Luc Date: Tue, 10 Jan 2017 18:34:03 +0100 Subject: [PATCH] kvm: x86: Expose Intel VPOPCNTDQ feature to guest MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Vector population count instructions for dwords and qwords are to be used in future Intel Xeon & Xeon Phi processors. The bit 14 of CPUID[level:0x07, ECX] indicates that the new instructions are supported by a processor. The spec can be found in the Intel Software Developer Manual (SDM) or in the Instruction Set Extensions Programming Reference (ISE). Signed-off-by: Piotr Luc Cc: Paolo Bonzini Cc: Radim Krčmář Cc: Thomas Gleixner Cc: Ingo Molnar Cc: H. Peter Anvin Cc: x86@kernel.org Cc: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Radim Krčmář --- 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 e85f6bd7b9d5..09c2ac741567 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -383,7 +383,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, /* cpuid 7.0.ecx*/ const u32 kvm_cpuid_7_0_ecx_x86_features = - F(AVX512VBMI) | F(PKU) | 0 /*OSPKE*/; + F(AVX512VBMI) | F(PKU) | 0 /*OSPKE*/ | F(AVX512_VPOPCNTDQ); /* cpuid 7.0.edx*/ const u32 kvm_cpuid_7_0_edx_x86_features = -- 2.20.1