From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1NocMb-0007PG-AU
	for qemu-devel@nongnu.org; Mon, 08 Mar 2010 07:47:13 -0500
Received: from [199.232.76.173] (port=36872 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1NocMa-0007P7-HT
	for qemu-devel@nongnu.org; Mon, 08 Mar 2010 07:47:12 -0500
Received: from Debian-exim by monty-python.gnu.org with spam-scanned (Exim
	4.60) (envelope-from <quintela@redhat.com>) id 1NocMY-0006bv-Iw
	for qemu-devel@nongnu.org; Mon, 08 Mar 2010 07:47:12 -0500
Received: from mx1.redhat.com ([209.132.183.28]:60556)
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <quintela@redhat.com>) id 1NocMY-0006bj-6t
	for qemu-devel@nongnu.org; Mon, 08 Mar 2010 07:47:10 -0500
From: Juan Quintela <quintela@redhat.com>
In-Reply-To: <4B94D60A.7070006@redhat.com> (Avi Kivity's message of "Mon, 08
	Mar 2010 12:48:42 +0200")
References: <4B93BB4A.8090605@redhat.com> <m3vdd7yulg.fsf@trasno.mitica>
	<4B94D60A.7070006@redhat.com>
Date: Mon, 08 Mar 2010 13:46:58 +0100
Message-ID: <m3tysr7zgd.fsf@trasno.mitica>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Subject: [Qemu-devel] Re: bs->enable_write_cache and the guest ABI
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Avi Kivity <avi@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>, Christoph Hellwig <hch@lst.de>

Avi Kivity <avi@redhat.com> wrote:
> On 03/08/2010 12:29 PM, Juan Quintela wrote:
>> Avi Kivity<avi@redhat.com>  wrote:
>> For RHEL I setted with adding enable_write_cache to the migration
>> state.  As you state, that value is guest visible.  I can update that
>> patches to qemu.  When I migrated from an old version, I just set that
>> value to 0.
>>
>> What do you think?
>>    
>
> I think we have to go with a qdev property as Christoph suggests.
> Then it becomes the management's responsibility to set it right.

Also works for me.

Later, Juan.