Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932133AbVKWSDm (ORCPT ); Wed, 23 Nov 2005 13:03:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932134AbVKWSDm (ORCPT ); Wed, 23 Nov 2005 13:03:42 -0500 Received: from terminus.zytor.com ([192.83.249.54]:54702 "EHLO terminus.zytor.com") by vger.kernel.org with ESMTP id S932133AbVKWSDk (ORCPT ); Wed, 23 Nov 2005 13:03:40 -0500 Message-ID: <4384AECC.1030403@zytor.com> Date: Wed, 23 Nov 2005 10:02:52 -0800 From: "H. Peter Anvin" User-Agent: Mozilla Thunderbird 1.0.7-1.1.fc4 (X11/20050929) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Linus Torvalds CC: Alan Cox , Andi Kleen , Gerd Knorr , Dave Jones , Zachary Amsden , Pavel Machek , Andrew Morton , Linux Kernel Mailing List , Zwane Mwaikambo , Pratap Subrahmanyam , Christopher Li , "Eric W. Biederman" , Ingo Molnar Subject: Re: [patch] SMP alternatives References: <4378A7F3.9070704@suse.de> <4379ECC1.20005@suse.de> <437A0649.7010702@suse.de> <437B5A83.8090808@suse.de> <438359D7.7090308@suse.de> <1132764133.7268.51.camel@localhost.localdomain> <20051123163906.GF20775@brahms.suse.de> <1132766489.7268.71.camel@localhost.localdomain> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 539 Lines: 14 Linus Torvalds wrote: > What I suggested to Intel at the Developer Days is to have a MSR (or, > better yet, a bit in the page table pointer %cr0) that disables "lock" in > _user_ space. Ie a lock would be a no-op when in CPL3, and only with > certain processes. You mean %cr3, right? -hpa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/