From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erik Hardesty Subject: Re: vga passthrough // questions about pci passthrough Date: Thu, 13 Dec 2012 22:47:39 +0000 (UTC) Message-ID: 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> <1348773491.2320.217.camel@ul30vt.home> <50655BE6.9050305@siemens.com> <1348847417.2320.333.camel@ul30vt.home> <5065D066.4030006@siemens.com> <506AA437.2010806@adiumentum.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from plane.gmane.org ([80.91.229.3]:42780 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756314Ab2LMXyx (ORCPT ); Thu, 13 Dec 2012 18:54:53 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1TjIcJ-0002Ug-KR for kvm@vger.kernel.org; Fri, 14 Dec 2012 00:55:03 +0100 Received: from 173-218-134-225.mid.dyn.suddenlink.net ([173-218-134-225.mid.dyn.suddenlink.net]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 14 Dec 2012 00:55:03 +0100 Received: from dalingrin by 173-218-134-225.mid.dyn.suddenlink.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 14 Dec 2012 00:55:03 +0100 Sender: kvm-owner@vger.kernel.org List-ID: I'm not sure if this will help the KVM camp at all but I have a very similar situation. I have a Radeon 7970 and a Xonar DX which uses the same chipset and pci-pcie bridge. The best I could get passthrough to work in KVM was exactly the same as the original poster's experience. I eventually got the 7970 working in the guest but it would not reset properly on guest restart or shutdown. After getting frustrated with my experience I decided to try Xen. To my surprise both the 7970 and the Xonar DX worked perfectly on the first try and performance was excellent.