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| author | Liu, Jinsong <jinsong.liu@intel.com> | 2014-02-21 17:33:32 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-02-22 15:53:33 +0100 |
| commit | 0c79893b2bad49e0c391a9499f50fcd5b0f80874 (patch) | |
| tree | a6cefad0cad8c6ea1b622bed2ba3687565f9842d /arch/x86/kvm/cpuid.c | |
| parent | 0d75de4a65d99ba042b050620d479ab74b1919d4 (diff) | |
| download | linux-0c79893b2bad49e0c391a9499f50fcd5b0f80874.tar.bz2 | |
KVM: x86: expose new instruction RDSEED to guest
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>
Diffstat (limited to 'arch/x86/kvm/cpuid.c')
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index c6976257eff5..abe18b489e73 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -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(); |