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authorYang, Wei Y <wei.y.yang@intel.com>2011-06-13 17:52:33 +0400
committerAvi Kivity <avi@redhat.com>2011-07-12 14:16:21 +0400
commit4a00efdf0c7c93dc6f6b3ce7e2d6bd4cd1ac1651 (patch)
treec6db2aa1b867285a9764f4dd35e4ab25c0ecec1e /arch/x86/kvm/x86.c
parent02668b061db1b9f7f18872e594ac68e237db0bed (diff)
downloadlinux-4a00efdf0c7c93dc6f6b3ce7e2d6bd4cd1ac1651.tar.xz
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 <wei.y.yang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
-rw-r--r--arch/x86/kvm/x86.c2
1 files changed, 1 insertions, 1 deletions
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 */ |