lkml.org 
[lkml]   [2014]   [Feb]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] KVM: x86: expose ADX feature to guest
Il 21/02/2014 18:36, Liu, Jinsong ha scritto:
> 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>
> ---
> 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();
>

Applied to kvm/queue, thanks.

Paolo



\
 
 \ /
  Last update: 2014-02-22 16:41    [W:0.068 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site