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| author | Liu, Jinsong <jinsong.liu@intel.com> | 2014-02-21 17:36:12 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-02-22 15:53:34 +0100 |
| commit | 49345f13f0830741b94b867cf906c4aad3988306 (patch) | |
| tree | 63b2ab52144f33bda7d29a2cb12a915d3e25241f | |
| parent | 0c79893b2bad49e0c391a9499f50fcd5b0f80874 (diff) | |
| download | op-kernel-dev-49345f13f0830741b94b867cf906c4aad3988306.zip op-kernel-dev-49345f13f0830741b94b867cf906c4aad3988306.tar.gz | |
KVM: x86: expose ADX feature to guest
From 0750e335eb5860b0b483e217e8a08bd743cbba16 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@intel.com>
Date: Thu, 20 Feb 2014 17:39:32 +0800
Subject: [PATCH] KVM: x86: expose ADX feature to guest
ADCX and ADOX instructions perform an unsigned addition with Carry flag and
Overflow flag respectively.
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>
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index abe18b4..a951ae4 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -303,7 +303,8 @@ 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(RDSEED); + F(BMI2) | F(ERMS) | f_invpcid | F(RTM) | F(RDSEED) | + F(ADX); /* all calls to cpuid_count() should be made on the same cpu */ get_cpu(); |
