From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=45381 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OvuOz-0000dJ-GG for qemu-devel@nongnu.org; Wed, 15 Sep 2010 12:00:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OvuOt-0003LT-PB for qemu-devel@nongnu.org; Wed, 15 Sep 2010 12:00:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42561) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OvuOt-0003LF-FO for qemu-devel@nongnu.org; Wed, 15 Sep 2010 11:59:59 -0400 From: Juan Quintela In-Reply-To: <4C8CD57D.60508@redhat.com> (Avi Kivity's message of "Sun, 12 Sep 2010 15:28:29 +0200") References: <1284213896-12705-1-git-send-email-aliguori@us.ibm.com> <1284213896-12705-2-git-send-email-aliguori@us.ibm.com> <4C8CAD7C.5020102@redhat.com> <4C8CD06A.7060507@codemonkey.ws> <4C8CD57D.60508@redhat.com> Date: Wed, 15 Sep 2010 17:57:22 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: [Qemu-devel] Re: [PATCH 1/3] block: allow migration to work with image files List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: Kevin Wolf , qemu-devel@nongnu.org, Stefan Hajnoczi Avi Kivity wrote: > On 09/12/2010 03:06 PM, Anthony Liguori wrote: >> >> Backing files and logical size shouldn't change during live migration. > > Why not? It is supposed to be the same in both sides O:-) If you want to extend a disk, you need to told qemu about that. Either before or after migration, but not "during" migration. > >> >> But even so, I think the interface make sense. It's basically, drop >> anything you have cached that may change during migration. What >> needs to be read is dependent on features/format. > > Sure. Certainly as an incremental step. Later, Juan.