From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=34449 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OOoOl-0001yk-By for qemu-devel@nongnu.org; Wed, 16 Jun 2010 04:55:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OOoOk-0000ZH-4z for qemu-devel@nongnu.org; Wed, 16 Jun 2010 04:55:03 -0400 Received: from mail-fx0-f45.google.com ([209.85.161.45]:54988) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OOoOj-0000Yw-SD for qemu-devel@nongnu.org; Wed, 16 Jun 2010 04:55:02 -0400 Received: by fxm9 with SMTP id 9so323053fxm.4 for ; Wed, 16 Jun 2010 01:55:00 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <4C189162.4040701@redhat.com> Date: Wed, 16 Jun 2010 10:54:58 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <31e7e4aefc644057186f501bfef4584d337a4d9c.1276607973.git.quintela@redhat.com> In-Reply-To: <31e7e4aefc644057186f501bfef4584d337a4d9c.1276607973.git.quintela@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] Re: [PATCH 5/5] ide: fix migration in the middle of a bmdma transfer List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Juan Quintela Cc: qemu-devel@nongnu.org On 06/15/2010 03:31 PM, Juan Quintela wrote: > Signed-off-by: Juan Quintela Sorry if this has been discussed to death before (if so I must have missed it...). With subsections available, what about taking advantage of the new protocol extension and add to the subsection info about the size of the subsection? Also, with the size information, would it make sense to specify optional subsections that the receiver could choose to ignore? Mandatory subsections are something such that round-trip A->B->A fail unless B understands the subsection, while optional subsections are such that A can provide a default. IDE subsections would be optional, for example. Paolo