[Xen-devel] Re: [PATCH] CPUID level 0x00000007:0 (ebx) is word 9, instead of word 7

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 31/05/2011 00:39, "Li, Xin" <xin.li@xxxxxxxxx> wrote:

> CPUID level 0x00000007:0 (ebx) is word 9, instead of word 7.
> 
> ... make it consistent with native Linux.

This is just a cleanup, not a bug fix?

 -- Keir

> Signed-off-by: Li Xin <xin.li@xxxxxxxxx>
> 
> diff -r d7c755c25bb9 xen/include/asm-x86/cpufeature.h
> --- a/xen/include/asm-x86/cpufeature.h  Sat May 28 08:58:08 2011 +0100
> +++ b/xen/include/asm-x86/cpufeature.h  Tue May 31 07:34:34 2011 +0800
> @@ -142,7 +142,7 @@
>  #define X86_FEATURE_TOPOEXT     (6*32+22) /* topology extensions CPUID leafs
> */
> 
>  /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
> -#define X86_FEATURE_FSGSBASE   (7*32+ 0) /* {RD,WR}{FS,GS}BASE instructions
> */
> +#define X86_FEATURE_FSGSBASE   (9*32+ 0) /* {RD,WR}{FS,GS}BASE instructions
> */
> 
>  #define cpu_has(c, bit)                test_bit(bit, (c)->x86_capability)
>  #define boot_cpu_has(bit)      test_bit(bit, boot_cpu_data.x86_capability)



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