Avi, Any comments? Thanks, Jinsong Liu, Jinsong wrote: > From ecd8be962f69393c183f941bfdbd7a7d3876d442 Mon Sep 17 00:00:00 2001 > From: Liu, Jinsong <jinsong.liu@xxxxxxxxx> > Date: Mon, 27 Feb 2012 05:19:32 +0800 > Subject: [PATCH] KVM: expose Intel cpu new features to guest > > Intel recently release 2 new features, HLE and TRM. > Refer to http://software.intel.com/file/41417. > This patch expose them to guest. > > Signed-off-by: Liu, Jinsong <jinsong.liu@xxxxxxxxx> > --- > arch/x86/include/asm/cpufeature.h | 2 ++ > arch/x86/kvm/cpuid.c | 3 ++- > 2 files changed, 4 insertions(+), 1 deletions(-) > > diff --git a/arch/x86/include/asm/cpufeature.h > b/arch/x86/include/asm/cpufeature.h > index 17c5d4b..e8d12a8 100644 > --- a/arch/x86/include/asm/cpufeature.h > +++ b/arch/x86/include/asm/cpufeature.h > @@ -198,10 +198,12 @@ > /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word > 9 */ #define X86_FEATURE_FSGSBASE (9*32+ 0) /* {RD/WR}{FS/GS}BASE > instructions*/ #define X86_FEATURE_BMI1 (9*32+ 3) /* 1st group bit > manipulation extensions */ +#define X86_FEATURE_HLE (9*32+ 4) /* > Hardware Lock Elision */ #define X86_FEATURE_AVX2 (9*32+ 5) /* AVX2 > instructions */ #define X86_FEATURE_SMEP (9*32+ 7) /* Supervisor > Mode Execution Protection */ #define X86_FEATURE_BMI2 (9*32+ 8) /* > 2nd group bit manipulation extensions */ #define > X86_FEATURE_ERMS (9*32+ 9) /* Enhanced REP MOVSB/STOSB */ +#define > X86_FEATURE_RTM (9*32+11) /* Restricted Transactional Memory */ > > #if defined(__KERNEL__) && !defined(__ASSEMBLY__) > > diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c > index 9fed5be..c2134b8 100644 > --- a/arch/x86/kvm/cpuid.c > +++ b/arch/x86/kvm/cpuid.c > @@ -247,7 +247,8 @@ static 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(AVX2) | F(SMEP) | F(BMI2) | F(ERMS); > + F(FSGSBASE) | F(BMI1) | F(HLE) | F(AVX2) | F(SMEP) | > + F(BMI2) | F(ERMS) | F(RTM); > > /* all calls to cpuid_count() should be made on the same cpu */ > get_cpu(); -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
