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[Xen-devel] Re: [PATCH] CPUID level 0x00000007:0 (ebx) is word 9, instea
| To: | "Li, Xin" <xin.li@xxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [PATCH] CPUID level 0x00000007:0 (ebx) is word 9, instead of word 7 |
| From: | Keir Fraser <keir.xen@xxxxxxxxx> |
| Date: | Tue, 31 May 2011 13:39:34 +0100 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx> |
| Delivery-date: | Tue, 31 May 2011 05:41:09 -0700 |
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| Thread-topic: | [PATCH] CPUID level 0x00000007:0 (ebx) is word 9, instead of word 7 |
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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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