* [Qemu-devel] [PATCH] KVM: x86: expose ADX feature to guest
@ 2014-02-21 17:36 Liu, Jinsong
2014-02-22 14:54 ` Paolo Bonzini
0 siblings, 1 reply; 2+ messages in thread
From: Liu, Jinsong @ 2014-02-21 17:36 UTC (permalink / raw)
To: Paolo Bonzini
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, gleb@redhat.com,
linux-kernel@vger.kernel.org
>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();
--
1.7.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] [PATCH] KVM: x86: expose ADX feature to guest
2014-02-21 17:36 [Qemu-devel] [PATCH] KVM: x86: expose ADX feature to guest Liu, Jinsong
@ 2014-02-22 14:54 ` Paolo Bonzini
0 siblings, 0 replies; 2+ messages in thread
From: Paolo Bonzini @ 2014-02-22 14:54 UTC (permalink / raw)
To: Liu, Jinsong
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, gleb@redhat.com,
linux-kernel@vger.kernel.org
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
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