linux-kernel - Re: [PATCH 2/3] X86, mpx: Intel MPX definition

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Message-ID: <20131206133339.GC6694@pd.tnic>
Date:	Fri, 6 Dec 2013 14:33:39 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Qiaowei Ren <qiaowei.ren@...el.com>
Cc:	Paolo Bonzini <pbonzini@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
	linux-kernel@...r.kernel.org, qemu-devel@...gnu.org,
	kvm@...r.kernel.org, Xudong Hao <xudong.hao@...el.com>,
	Liu Jinsong <jinsong.liu@...el.com>
Subject: Re: [PATCH 2/3] X86, mpx: Intel MPX definition

On Sat, Dec 07, 2013 at 02:52:55AM +0800, Qiaowei Ren wrote:
> 
> Signed-off-by: Qiaowei Ren <qiaowei.ren@...el.com>
> Signed-off-by: Xudong Hao <xudong.hao@...el.com>
> Signed-off-by: Liu Jinsong <jinsong.liu@...el.com>
> ---
>  arch/x86/include/asm/cpufeature.h |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)

This patch should probably be merged with the next one...

> 
> diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
> index d3f5c63..6c2738d 100644
> --- a/arch/x86/include/asm/cpufeature.h
> +++ b/arch/x86/include/asm/cpufeature.h
> @@ -216,6 +216,7 @@
>  #define X86_FEATURE_ERMS	(9*32+ 9) /* Enhanced REP MOVSB/STOSB */
>  #define X86_FEATURE_INVPCID	(9*32+10) /* Invalidate Processor Context ID */
>  #define X86_FEATURE_RTM		(9*32+11) /* Restricted Transactional Memory */
> +#define X86_FEATURE_MPX		(9*32+14) /* Memory Protection Extension */
>  #define X86_FEATURE_RDSEED	(9*32+18) /* The RDSEED instruction */
>  #define X86_FEATURE_ADX		(9*32+19) /* The ADCX and ADOX instructions */
>  #define X86_FEATURE_SMAP	(9*32+20) /* Supervisor Mode Access Prevention */
> @@ -330,6 +331,7 @@ extern const char * const x86_power_flags[32];
>  #define cpu_has_perfctr_l2	boot_cpu_has(X86_FEATURE_PERFCTR_L2)
>  #define cpu_has_cx8		boot_cpu_has(X86_FEATURE_CX8)
>  #define cpu_has_cx16		boot_cpu_has(X86_FEATURE_CX16)
> +#define cpu_has_mpx		boot_cpu_has(X86_FEATURE_MPX)

... and we're trying to not have more of those macros so people should be simply
using boot_cpu_has(X86_FEATURE_YYY).

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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