From mboxrd@z Thu Jan 1 00:00:00 1970 From: jocelyn.falempe@free.fr Subject: Some questions about VGA passthrough Date: Wed, 23 May 2012 20:18:53 +0200 (CEST) Message-ID: <1733777228.133546021.1337797133128.JavaMail.root@zimbra4-e1.priv.proxad.net> References: <922105613.133527893.1337796341773.JavaMail.root@zimbra4-e1.priv.proxad.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <922105613.133527893.1337796341773.JavaMail.root@zimbra4-e1.priv.proxad.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org Hi, I'm trying get the following configuration working with Xen VGA passthrough (no more dual-boot for gaming !): Core i7 3770 (with Vt-d) ASRock z77 Pro4-M Sapphire Radeon HD 7950 my goal is to have a Linux Dom0 using the intel HD 3000 gfx integrated in the CPU, connected to 1 display, and a Win7 DomU, using the Radeon 7950, connected to another display. I installed Ubuntu 12.04, and xen 4.1.2 from the packages. - Do I need VGA passthrough, or PCI passthrough might be enough in my case ? (Dom0 doesn't use the Radeon, and I saw some reports with 3D graphics with PCI passthrough). - Do I need to extract the VGA Bios ? I think it is only required for NVIDA cards, but I didn't find a clear statement. - Do I need to add vga passthrough patches ? which version to use for xen 4.1.2 ? my xen is able to boot a HVM 64bit win8 consumer preview (but there are no driver for 7950, so I will go back to win7). also I added this in grub : GRUB_CMDLINE_LINUX="quiet splash xen-pciback.permissive xen-pciback.hide=(01:00.0)(01:00.1) pci=resource_alignment=01:00.0;01:00.1" ~# xm pci-list-assignable-device 0000:01:00.0 0000:01:00.1 so normally I should be able to pass the graphic cards to the HVM. Any help greatly appreciated, Regards, -- Joc