From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kai Meyer Subject: Re: PCI-Passthrough for Graphics card Date: Thu, 13 Nov 2008 12:49:44 -0700 Message-ID: References: <491B2BA7.4050408@unixlords.com> <200811131355.42352.amit.shah@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:40543 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752722AbYKMWZG (ORCPT ); Thu, 13 Nov 2008 17:25:06 -0500 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1L0kcZ-0001v1-5A for kvm@vger.kernel.org; Thu, 13 Nov 2008 22:25:03 +0000 Received: from host-20.fbp.ore.fiber.net ([216.83.157.20]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 13 Nov 2008 22:25:03 +0000 Received: from kai by host-20.fbp.ore.fiber.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 13 Nov 2008 22:25:03 +0000 In-Reply-To: <200811131355.42352.amit.shah@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Amit Shah wrote: > * On Thursday 13 Nov 2008 00:46:55 Kai Meyer wrote: >> When I heard that kvm had pci-passthrough working for network cards, I >> thought I'd make an attempt to get my nVidia 8600GT video card to work >> in a Windows VM (thus satisfying my desire to quit dual booting, so I >> can play my stinking games.) >> >> I'm having trouble interpreting my results so far. In windows, I get a >> Code 10 error, which if I read it correctly, means "There was an error, >> but I don't know what it is." To sum it up, nVidia has this to say: >> http://www.nvidia.com/object/IO_13957.html >> >> With a fedora 10 i386 guest, any time a driver tries to touch the >> device, the cpu grinds, and the only thing that responds is moving the >> mouse around (and highlighting stuff.) >> >> I'd like to contribute what I can, but I'll admit my programming is >> still at a pre-graduate level. > > As I mentioned in my private email exchange, you'll have to look at the way > the host BIOS is accessed by the drivers as well as the video BIOS. > > There was talk of such support on Xen as well, you can search for that if > they've already done it. > > Amit. > -- I looked in to the Xen solution, and their method requires a driver on the back end (the host) and the front end (the guest) that support the pci pass-through function. So for a windows guest, it didn't work. -Kai Meyer