From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57581) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b0Vm2-00059R-9w for qemu-devel@nongnu.org; Wed, 11 May 2016 11:10:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b0Vlx-0005ai-4x for qemu-devel@nongnu.org; Wed, 11 May 2016 11:10:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53471) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b0Vlw-0005aN-Vt for qemu-devel@nongnu.org; Wed, 11 May 2016 11:10:01 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A2D7161A11 for ; Wed, 11 May 2016 15:10:00 +0000 (UTC) References: <1462816056-17463-1-git-send-email-marcel@redhat.com> <8737pqfhac.fsf@dusky.pond.sub.org> <20160510183412-mutt-send-email-mst@redhat.com> <573216B9.3060902@redhat.com> <20160511165429-mutt-send-email-mst@redhat.com> From: Paolo Bonzini Message-ID: <57334B44.6070709@redhat.com> Date: Wed, 11 May 2016 17:09:56 +0200 MIME-Version: 1.0 In-Reply-To: <20160511165429-mutt-send-email-mst@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH RFC 0/3] qdev: order devices by priority before creating them List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" Cc: Markus Armbruster , Marcel Apfelbaum , qemu-devel@nongnu.org On 11/05/2016 15:55, Michael S. Tsirkin wrote: > > Could they "know" it by adding an iommu=foo argument to e.g. the PCI > > bridge, pointing to the IOMMU device? > > People don't create the pci host bridge though, it's > part of the default machine. If there's just one of its class you can use -global (similar to how we use it for floppies). Thanks, Paolo