From 4a00efdf0c7c93dc6f6b3ce7e2d6bd4cd1ac1651 Mon Sep 17 00:00:00 2001 From: "Yang, Wei Y" Date: Mon, 13 Jun 2011 21:52:33 +0800 Subject: [PATCH] KVM: Enable DRNG feature support for KVM This patch exposes DRNG feature to KVM guests. The RDRAND instruction can provide software with sequences of random numbers generated from white noise. Signed-off-by: Yang, Wei Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 84f46074ca74..6f1e54d0828d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2345,7 +2345,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, 0 /* Reserved, DCA */ | F(XMM4_1) | F(XMM4_2) | F(X2APIC) | F(MOVBE) | F(POPCNT) | 0 /* Reserved*/ | F(AES) | F(XSAVE) | 0 /* OSXSAVE */ | F(AVX) | - F(F16C); + F(F16C) | F(RDRAND); /* cpuid 0x80000001.ecx */ const u32 kvm_supported_word6_x86_features = F(LAHF_LM) | F(CMP_LEGACY) | 0 /*SVM*/ | 0 /* ExtApicSpace */ | -- 2.20.1