From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [Qemu-devel] [PATCH 1.0] ac97: don't override the pci subsystem id Date: Mon, 07 Nov 2011 17:15:54 +0200 Message-ID: <4EB7F62A.4030305@redhat.com> References: <1320663634-29453-1-git-send-email-kraxel@redhat.com> <4EB7E896.9010108@redhat.com> <4EB7EC4A.90607@redhat.com> <4EB7EE62.7070805@redhat.com> <4EB7EEDD.4090604@codemonkey.ws> <4EB7F027.10209@redhat.com> <4EB7F0D8.2060306@codemonkey.ws> <4EB7F285.9080009@redhat.com> <4EB7F4C8.4080004@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Anthony Liguori , Takashi Iwai , kvm@vger.kernel.org, qemu-devel@nongnu.org To: Gerd Hoffmann Return-path: Received: from mx1.redhat.com ([209.132.183.28]:10129 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751071Ab1KGPQB (ORCPT ); Mon, 7 Nov 2011 10:16:01 -0500 In-Reply-To: <4EB7F4C8.4080004@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 11/07/2011 05:10 PM, Gerd Hoffmann wrote: > Hi, > > > This is more of an edge case however, since we know that hardware tools > > rely on PCI IDs. > > The ID is invalid, you can't do anything useful with it ... > > > For example our hypothetical ABI signature tool will > > certainly include lspci like functionality and detect this as a change. > > ... except maybe recording it somewhere to notice when changes. > > So I guess your point is Windows guests might think they got a new sound > card, record that has hardware change and may require re-activation > because of that? Yes. Or some hardware inventory tool we know nothing about, which was constructed specifically in order to make our lives miserable. -- error compiling committee.c: too many arguments to function