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Message-ID: <20080906120954.GD30964@elte.hu>
Date: Sat, 6 Sep 2008 14:09:54 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Yinghai Lu <yhlu.kernel@...il.com>
Cc: Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] x86: calling early_init_xxx in init_xxx
* Yinghai Lu <yhlu.kernel@...il.com> wrote:
> so
> 1. could set some cap to ap
> 2. restore some cap after memset in identify_cpu for boot cpu
>
> esp for CONSTANT_TSC
>
> before this patch:
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow rep_good nopl pni monitor cx16 lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs
>
> after this patch:
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl pni monitor cx16 lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs
>
> constant_tsc is back...
applied to tip/x86/unify-cpu-detect, thanks Yinghai.
Ingo
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