From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754014AbYIFMKb (ORCPT ); Sat, 6 Sep 2008 08:10:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753767AbYIFMKJ (ORCPT ); Sat, 6 Sep 2008 08:10:09 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:50040 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753696AbYIFMKH (ORCPT ); Sat, 6 Sep 2008 08:10:07 -0400 Date: Sat, 6 Sep 2008 14:09:54 +0200 From: Ingo Molnar To: Yinghai Lu Cc: Thomas Gleixner , "H. Peter Anvin" , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] x86: calling early_init_xxx in init_xxx Message-ID: <20080906120954.GD30964@elte.hu> References: <1220691148-5608-1-git-send-email-yhlu.kernel@gmail.com> <1220691148-5608-2-git-send-email-yhlu.kernel@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1220691148-5608-2-git-send-email-yhlu.kernel@gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Yinghai Lu 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