Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4a00efdf authored by Yang, Wei Y's avatar Yang, Wei Y Committed by Avi Kivity
Browse files

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: default avatarYang, Wei <wei.y.yang@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 02668b06

arch/x86/kvm/x86.c

+1 −1
Original line number Diff line number Diff line
@@ -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 */ |