From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:53043)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1azijF-0000hU-KZ
	for qemu-devel@nongnu.org; Mon, 09 May 2016 06:47:58 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1azij9-0005ll-HV
	for qemu-devel@nongnu.org; Mon, 09 May 2016 06:47:56 -0400
Received: from mx1.redhat.com ([209.132.183.28]:54182)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <pbonzini@redhat.com>) id 1azij9-0005lh-Bn
	for qemu-devel@nongnu.org; Mon, 09 May 2016 06:47:51 -0400
References: <1459870344-16773-1-git-send-email-alex.bennee@linaro.org>
	<1459870344-16773-9-git-send-email-alex.bennee@linaro.org>
	<570C0E16.1030304@gmail.com> <87mvozyrmo.fsf@linaro.org>
	<CAFEAcA86AafOaZQd+MOzXLRK4WqSdJiu8nAfnZwqcudSHw2WJQ@mail.gmail.com>
	<570CED19.7000301@gmail.com> <570CEF21.4000302@greensocs.com>
	<570CF175.8090807@gmail.com> <001501d194bb$c01b8800$40529800$@ru>
	<87lh4izz1o.fsf@linaro.org>
From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <57306ACD.4020608@redhat.com>
Date: Mon, 9 May 2016 12:47:41 +0200
MIME-Version: 1.0
In-Reply-To: <87lh4izz1o.fsf@linaro.org>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Subject: Re: [Qemu-devel] [RFC v2 08/11] tcg: add options for enabling MTTCG
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: =?UTF-8?Q?Alex_Benn=c3=a9e?= <alex.bennee@linaro.org>, Pavel Dovgalyuk <dovgaluk@ispras.ru>
Cc: 'Sergey Fedorov' <serge.fdrv@gmail.com>, 'KONRAD Frederic' <fred.konrad@greensocs.com>, 'Peter Maydell' <peter.maydell@linaro.org>, 'MTTCG Devel' <mttcg@greensocs.com>, 'Alvise Rigo' <a.rigo@virtualopensystems.com>, "'Emilio G. Cota'" <cota@braap.org>, 'QEMU Developers' <qemu-devel@nongnu.org>, 'Mark Burton' <mark.burton@greensocs.com>, "'J. Kiszka'" <jan.kiszka@siemens.com>, 'Richard Henderson' <rth@twiddle.net>, 'Claudio Fontana' <claudio.fontana@huawei.com>, 'Peter Crosthwaite' <crosthwaite.peter@gmail.com>, =?UTF-8?Q?'Andreas_F=c3=a4rber'?= <afaerber@suse.de>



On 12/04/2016 16:23, Alex Benn=C3=A9e wrote:
> Well one of the reasons I'm keeping single thread behaviour is so thing=
s
> like icount/replay support can continue to work. The two options will b=
e
> incompatible to start with.

As long as the single-threaded TCG gets rid of iothread's special
behavior of kicking VCPUs, I don't think it's going to be painful to
keep it around.

Paolo