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KVM: x86: expose new instruction RDSEED to guest

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From 24ffdce9efebf13c6ed4882f714b2b57ef1141eb Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@intel.com>
Date: Thu, 20 Feb 2014 17:38:26 +0800
Subject: [PATCH] KVM: x86: expose new instruction RDSEED to guest

RDSEED instruction return a random number, which supplied by a
cryptographically secure, deterministic random bit generator(DRBG).

Signed-off-by: Xudong Hao <xudong.hao@intel.com>
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Liu, Jinsong 2014-02-21 17:33:32 +00:00 committed by Paolo Bonzini
parent 0d75de4a65
commit 0c79893b2b
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/cpuid.c
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@ -303,7 +303,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
/* cpuid 7.0.ebx */
const u32 kvm_supported_word9_x86_features =
F(FSGSBASE) | F(BMI1) | F(HLE) | F(AVX2) | F(SMEP) |
F(BMI2) | F(ERMS) | f_invpcid | F(RTM);
F(BMI2) | F(ERMS) | f_invpcid | F(RTM) | F(RDSEED);
/* all calls to cpuid_count() should be made on the same cpu */
get_cpu();