From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46407) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1adfdI-00065t-Ie for qemu-devel@nongnu.org; Wed, 09 Mar 2016 10:02:41 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1adfdE-00030U-IN for qemu-devel@nongnu.org; Wed, 09 Mar 2016 10:02:40 -0500 Received: from mx1.redhat.com ([209.132.183.28]:47311) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1adfdE-00030P-Da for qemu-devel@nongnu.org; Wed, 09 Mar 2016 10:02:36 -0500 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id F000130248D for ; Wed, 9 Mar 2016 15:02:35 +0000 (UTC) Message-ID: <1457535754.676.52.camel@redhat.com> From: Gerd Hoffmann Date: Wed, 09 Mar 2016 16:02:34 +0100 In-Reply-To: <1457510637.676.15.camel@redhat.com> References: <1457080913-30018-1-git-send-email-kraxel@redhat.com> <20160307144151.5d17dfb4@t450s.home> <1457424290.22567.24.camel@redhat.com> <20160308081533.57e0fa8d@t450s.home> <1457510637.676.15.camel@redhat.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH v2] vfio/igd: handle q35 machine type List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alex Williamson Cc: qemu-devel@nongnu.org Hi, > We don't change the pci ids for the host bridge. It's still a > i440fx/q35 host bridge, only the subsystem ID is changed (although I'm > sometimes wondering why), and the gfx registers added of course. Hmm, not changing the subsystem id (and only adding the gfx regs) seems to have no bad side effects. bios, old and new kernels are all still happy. cheers, Gerd