Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 15 Nov 2000 16:21:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 15 Nov 2000 16:21:41 -0500 Received: from neon-gw.transmeta.com ([209.10.217.66]:56075 "EHLO neon-gw.transmeta.com") by vger.kernel.org with ESMTP id ; Wed, 15 Nov 2000 16:21:25 -0500 Message-ID: <3A12F72E.44C44FE2@transmeta.com> Date: Wed, 15 Nov 2000 12:50:54 -0800 From: "H. Peter Anvin" Organization: Transmeta Corporation X-Mailer: Mozilla 4.75 [en] (X11; U; Linux 2.4.0-test11-pre5 i686) X-Accept-Language: en, sv, no, da, es, fr, ja MIME-Version: 1.0 To: Michel LESPINASSE CC: "H. Peter Anvin" , linux-kernel@vger.kernel.org Subject: Re: test11-pre5 breaks vmware In-Reply-To:

<8uuqmv$el4$1@cesium.transmeta.com> <20001115124931.B28499@windriver.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Michel LESPINASSE wrote: > > On Wed, Nov 15, 2000 at 12:12:15PM -0800, H. Peter Anvin wrote: > > Also, if a piece of software needs raw CPUID information (unlike the > > "cooked" one provided by recent kernels) it should use > > /dev/cpu/*/cpuid. > > Is it also OK to use the cpuid opcode in userspace ? (after checking > for its presence with the 0x200000 eflags bit) > Only on single-CPU systems. What /dev/cpu/*/cpuid gives you is the ability to direct the CPUID request to a particular CPU. -hpa -- at work, in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/