From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Williamson Subject: Re: AMD KVM Pci Passthrough reports device busy Date: Wed, 11 Jul 2012 14:01:55 -0600 Message-ID: <1342036915.2229.21.camel@bling.home> References: <1338867845.23475.168.camel@bling.home> <201206051039.q55AdXda002609@mail.maya.org> <1338906425.23475.186.camel@bling.home> <20120606101105.GD757@amd.com> <201207111426.q6BEQTbh002928@mail.maya.org> <20120711165854.GM25282@amd.com> <4FFDD4B5.6080304@01019freenet.de> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Joerg Roedel , Chris Sanders , kvm@vger.kernel.org To: Andreas Hartmann Return-path: Received: from mx1.redhat.com ([209.132.183.28]:39751 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932328Ab2GKUCD (ORCPT ); Wed, 11 Jul 2012 16:02:03 -0400 In-Reply-To: <4FFDD4B5.6080304@01019freenet.de> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, 2012-07-11 at 21:32 +0200, Andreas Hartmann wrote: > Hello Joerg, > > Joerg Roedel wrote: > > Hi Andreas, > > > > On Wed, Jul 11, 2012 at 04:26:30PM +0200, Andreas Hartmann wrote: > >> May I please ask, if you meanwhile could get any information about > >> potential peer-to-peer communication between the functions of the > >> following multifunction device: > > > > Good news: I actually found the right person to ask and the answer is, > > that peer-to-peer communication between these devices is not > > possible. So it is safe to pass them through to guests > > individually. Thanks Joerg! > This is really good news! Thank you very much for your support! This > makes this chipset really useful for users who want to passthrough PCI > devices to a VM without loosing other functions used on the host. > > Your information confirms the result of the individual tests I already did. > > > @Alex: > Could you please send this patch upstream now: > > http://news.gmane.org/find-root.php?group=gmane.linux.kernel&article=1310198 Sure. Alex