From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1Lppwf-0004RK-G4
	for qemu-devel@nongnu.org; Fri, 03 Apr 2009 16:24:57 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1Lppwa-0004R8-4N
	for qemu-devel@nongnu.org; Fri, 03 Apr 2009 16:24:56 -0400
Received: from [199.232.76.173] (port=44579 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1LppwZ-0004R5-VI
	for qemu-devel@nongnu.org; Fri, 03 Apr 2009 16:24:51 -0400
Received: from mx2.redhat.com ([66.187.237.31]:41039)
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <kraxel@redhat.com>) id 1LppwZ-0001wG-JC
	for qemu-devel@nongnu.org; Fri, 03 Apr 2009 16:24:51 -0400
Message-ID: <49D6708D.4000601@redhat.com>
Date: Fri, 03 Apr 2009 22:24:45 +0200
From: Gerd Hoffmann <kraxel@redhat.com>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] [PATCH 00/10] xen: pv domain support.
References: <1238621982-18333-1-git-send-email-kraxel@redhat.com>
	<1238706878.5426.1.camel@Quad>
In-Reply-To: <1238706878.5426.1.camel@Quad>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Reply-To: qemu-devel@nongnu.org
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: Laurent Vivier <Laurent@vivier.eu>
Cc: xen-devel@lists.xensource.com, qemu-devel@nongnu.org

Laurent Vivier wrote:
> Le mercredi 01 avril 2009 =C3=A0 23:39 +0200, Gerd Hoffmann a =C3=A9cri=
t :
>> Hi,
>=20
> Hi,
>=20
>> It's been a while, but after a looooooooooooong time we've (hopefully)
>> finally sorted the merging issues with qemu-xen.  So here is a fresh
>> version of the xen support for qemu patch series.  Short overview
>> (individual patches have longer descriptions):
>=20
> Could you explain how to use it.
>=20
> Do you need a xend and xenstored running on the host ?

Depends ;)

Long term plan is to have three ways of supporting xen guests in qemu
(pv only for now):

#1: Xen emulation (aka xenner).  No code for this is submitted (yet).
    That will allow running xen kernels in qemu.  No xend, no xenstored
    needed.  Also no Xen hypervisor.

#2: Make qemu attach to an existing domain.  That is the way qemu-dm
    (xenified qemu version) works right now:  xend creates the domain,
    and qemu attaches to it to provide console and framebuffer backend.
    Obviously needs both xend and xenstored.

#3: Make qemu create xen domains.  xenstored is still needed then.  You
    can run without xend though.

#2 works with the first 4 patches applied.
#3 works with all patches applied.
#1 needs more patches which are bitrotting in my git repo right now.
   I'll dig them out once this patchset is merged.

cheers,
  Gerd