From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=52126 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Pv8bS-0002H0-Dt for qemu-devel@nongnu.org; Thu, 03 Mar 2011 08:30:07 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Pv8bL-0008KB-HD for qemu-devel@nongnu.org; Thu, 03 Mar 2011 08:30:01 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41351) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Pv8bL-0008Jx-7d for qemu-devel@nongnu.org; Thu, 03 Mar 2011 08:29:55 -0500 Message-ID: <4D6F97C4.7010100@redhat.com> Date: Thu, 03 Mar 2011 14:29:40 +0100 From: Jes Sorensen MIME-Version: 1.0 Subject: Re: [Qemu-devel] QEMU: Discussion of separating core functionality vs supportive features References: <4D6BD085.8000001@redhat.com> <4D6E19B5.6040203@redhat.com> <4D6E425C.8080809@linux.vnet.ibm.com> <4D6E4392.7010904@redhat.com> <4D6E4B03.6000105@linux.vnet.ibm.com> In-Reply-To: <4D6E4B03.6000105@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Michael Roth Cc: Juan Quintela , Dor Laor , QEMU Developers , Anthony Liguori , Gerd Hoffmann , Adam Litke , Amit Shah On 03/02/11 14:49, Michael Roth wrote: > On 03/02/2011 07:18 AM, Jes Sorensen wrote: >> I think we need two types for sure, even for the video case, we will >> still need a control channel as well. However, I don't think it is >> desirable to split things up more than we have to, so if we can keep it >> within one client process that is good. Maybe there are cases where it >> makes sense to split it into more processes, I could be convinced, but I >> think we really need to be careful making it too much of a complex mess >> either. > > Yup, if it's doable I'd prefer a single client process as well. Just > hard to predict how difficult it'll be to support 2 or more mechanisms. > Although, I'd imagine we'd end up with something like qemu's io loop, > with event-driven shmem and fd-based work, which does seem doable. That is pretty much what I had in mind. Will have to see how it works out, but I think it is very feasible :) Cheers, Jes