From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757590AbYIIUNI (ORCPT ); Tue, 9 Sep 2008 16:13:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755303AbYIIUMz (ORCPT ); Tue, 9 Sep 2008 16:12:55 -0400 Received: from terminus.zytor.com ([198.137.202.10]:53193 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755314AbYIIUMy (ORCPT ); Tue, 9 Sep 2008 16:12:54 -0400 Message-ID: <48C6D8A2.1090806@zytor.com> Date: Tue, 09 Sep 2008 13:12:18 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Yan Li CC: Ingo Molnar , linux-kernel@vger.kernel.org, joerg.roedel@amd.com, rjmaomao@gmail.com, Yinghai Lu , Thomas Gleixner , nancydreaming@gmail.com Subject: Re: [PATCH 1/2] VMware detection support for x86 and x86-64 References: <20080221115452.GB13948@elte.hu> <20080907234510.GA24133@yantp.cn.ibm.com> <20080908140423.GG11993@elte.hu> <20080909002055.GA8573@yantp.cn.ibm.com> <48C5C47F.5040004@zytor.com> <20080909122846.GA25467@yantp.cn.ibm.com> In-Reply-To: <20080909122846.GA25467@yantp.cn.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Yan Li wrote: >>> >> If we get false negatives that is quite frankly their problem, not ours. >> If nothing else, we should be able to look for a host bridge with the >> VMWare vendor ID -- that should arguably be safer than DMI. > > Yeah, VMware's PCI vendor Id: 0x15AD > > Why using PCI vendor ID is safer than DMI? Mostly because DMI is human-readable and therefore more likely to change for non-technical reasons. -hpa