From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45652) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VOmjT-0007AA-EW for qemu-devel@nongnu.org; Wed, 25 Sep 2013 06:54:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VOmjN-0001pq-Fw for qemu-devel@nongnu.org; Wed, 25 Sep 2013 06:54:11 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43801) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VOmjN-0001pl-96 for qemu-devel@nongnu.org; Wed, 25 Sep 2013 06:54:05 -0400 Date: Wed, 25 Sep 2013 13:56:20 +0300 From: "Michael S. Tsirkin" Message-ID: <20130925105620.GC17439@redhat.com> References: <524162DE.1080705@redhat.com> <20130925070116.GA5436@redhat.com> <1380098908.1968.30.camel@localhost.localdomain> <5242AF59.5060905@redhat.com> <20130925100041.GA7876@redhat.com> <5242B783.3070209@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5242B783.3070209@redhat.com> Subject: Re: [Qemu-devel] Attaching PCI devices to the PCIe root complex List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Laine Stump Cc: qemu list , Marcel Apfelbaum , marcel.a@redhat.com On Wed, Sep 25, 2013 at 06:14:27AM -0400, Laine Stump wrote: > On 09/25/2013 06:00 AM, Michael S. Tsirkin wrote: > > On Wed, Sep 25, 2013 at 05:39:37AM -0400, Laine Stump wrote: > >> However it is done, each controller will need to have two sets of flags > >> - one for what it can plug into, and one for what can be plugged into it. > > Not just into it - what can be plugged into each slot. > > There are controllers that have different capabilities for different > slots? For once, not all slots can support hotplug. > Well, that complicates things a bit... Lots of controllers have multiple interfaces. You might not call them "slots" and we might model them as multiple devices ATM, but it's an artifact of QEMU - they are often a single chip. -- mST