From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Ryan C. Underwood" Subject: Re: PCI passthrough resource remapping Date: Sun, 10 Jan 2010 16:15:38 -0600 Message-ID: <20100110221538.GF4727@localhost.localdomain> References: <20100109024500.GB4727@localhost.localdomain> Reply-To: nemesis@icequake.net Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Cc: kvm@vger.kernel.org To: Alexander Graf Return-path: Received: from tulsa-1.icequake.net ([65.38.17.158]:41595 "EHLO mail.icequake.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751381Ab0AJWP6 (ORCPT ); Sun, 10 Jan 2010 17:15:58 -0500 Content-Disposition: inline In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: I guess I'll run the things I've found by the list to see if I'm off track or not. There is this patch: http://marc.info/?l=xen-devel&m=124748015304566&w=4 which would seem to be related to what I'm doing, trying to pass through a multifunction device (a Ricoh firewire controller which has digital media card reader subfunctions). Then there is this patch: http://patchwork.kernel.org/patch/20195/ Which is related to PCI passthrough without VT-d, but I have no idea if this patch is necessary or sufficient. Also, just for further complication, the Ricoh chip does not support MSI and shares an IRQ on the system board with the USB host controller. I have rebound the USB host controller to pci-stub, but I'm not sure if that totally takes care of the IRQ-sharing-without-MSI issue. -- Ryan C. Underwood,