From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Williamson Subject: Re: vga passthrough // questions about pci passthrough Date: Thu, 27 Sep 2012 13:18:11 -0600 Message-ID: <1348773491.2320.217.camel@ul30vt.home> References: <50064D87.2090809@adiumentum.com> <50068134.4060306@siemens.com> <5006A72D.3080408@adiumentum.com> <5006ADF3.9030304@adiumentum.com> <1342621405.2229.194.camel@bling.home> <50081FBC.7060208@adiumentum.com> <1342714590.3142.4.camel@ul30vt> <5064364E.7050508@adiumentum.com> <1348768586.2320.204.camel@ul30vt.home> <50649E5C.6020808@adiumentum.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Martin Wolf Return-path: Received: from mx1.redhat.com ([209.132.183.28]:18122 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751522Ab2I0TSQ (ORCPT ); Thu, 27 Sep 2012 15:18:16 -0400 In-Reply-To: <50649E5C.6020808@adiumentum.com> Sender: kvm-owner@vger.kernel.org List-ID: On Thu, 2012-09-27 at 20:43 +0200, Martin Wolf wrote: > thank you for the information. > > i will try what you mentioned... > do you have some additional information about rebooting a VM with a > passed through videocard? > (amd / ati 7870) I don't. Is the bsod on reboot only or does it also happen on shutdown? There's a slim chance it could be traced by enabling debug in the pci-assign driver and analyzing what the guest driver is trying to do. I'm hoping that q35 chipset support might resolve some issues with vga assignment as it exposes a topology that looks a bit more like one that a driver would expect on physical hardware. Thanks, Alex