Commit 49345f13 authored Feb 21, 2014 by Liu, Jinsong Committed by Paolo Bonzini Feb 22, 2014

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>

parent 0c79893b

arch/x86/kvm/cpuid.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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();

Admin message