From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55892) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fcb13-0007sv-CS for qemu-devel@nongnu.org; Mon, 09 Jul 2018 14:36:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fcb10-0003yc-55 for qemu-devel@nongnu.org; Mon, 09 Jul 2018 14:36:05 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:42330 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fcb10-0003yY-01 for qemu-devel@nongnu.org; Mon, 09 Jul 2018 14:36:02 -0400 Date: Mon, 9 Jul 2018 21:35:52 +0300 From: "Michael S. Tsirkin" Message-ID: <20180709210946-mutt-send-email-mst@kernel.org> References: <20180629221907.3662-1-venu.busireddy@oracle.com> <20180702161404.GA2339@rkaganb.sw.ru> <449f1449-ddf6-cd95-976c-14d04d8d503a@oracle.com> <20180703095825.GC30904@rkaganb.sw.ru> <20180709130035.GA6271@rkaganb.sw.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180709130035.GA6271@rkaganb.sw.ru> Subject: Re: [Qemu-devel] [PATCH v3 0/3] Use of unique identifier for pairing virtio and passthrough devices... List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Roman Kagan , si-wei liu , Venu Busireddy , Marcel Apfelbaum , virtio-dev@lists.oasis-open.org, qemu-devel@nongnu.org On Mon, Jul 09, 2018 at 04:00:36PM +0300, Roman Kagan wrote: > > The assumption of failover driver is that the primary (PT device) will be > > able to get a datapath once it shows up in the guest . > > I wonder how universal this assumption is Not universal at all. It is however the simplest use-case we could think of, and that is as a result already supported by Linux. I for one will be happy if we spec out a fuller support for more use-cases but it's probably orthogonal to grouping. -- MST