From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49456) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WrAHY-0002eX-50 for qemu-devel@nongnu.org; Sun, 01 Jun 2014 14:15:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WrAHP-00016A-4d for qemu-devel@nongnu.org; Sun, 01 Jun 2014 14:14:56 -0400 Received: from mail-wg0-x22b.google.com ([2a00:1450:400c:c00::22b]:54579) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WrAHO-00015s-MP for qemu-devel@nongnu.org; Sun, 01 Jun 2014 14:14:47 -0400 Received: by mail-wg0-f43.google.com with SMTP id l18so4154113wgh.14 for ; Sun, 01 Jun 2014 11:14:45 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <538B6D90.70202@redhat.com> Date: Sun, 01 Jun 2014 20:14:40 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <538A806D.7010300@redhat.com> In-Reply-To: <538A806D.7010300@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] When should management tools use q35? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Cole Robinson , qemu-devel Cc: Gerd Hoffmann , Laine Stump Il 01/06/2014 03:22, Cole Robinson ha scritto: > Hi all, > > There was a bit of discussion recently about exposing q35 in virt-manager: > > http://www.redhat.com/archives/virt-tools-list/2014-May/msg00001.html > > In that thread, Gerd suggested a 'rule of thumb' to use q35 for any guest OS > released in 2010 or later. Sounds reasonable to me, but I'm curious if anyone > else wants to weigh in. > > Is q35 in 'good enough' shape to turn on a default like that? Does it still > block migration? (pretty sure that was fixed, but I haven't confirmed) AHCI migration still does not work reliably. I think that we could change it to block migration only if you have IDE drives, but still means that exposing q35 in virt-manager might be problematic. Paolo