From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alex Zeffertt <alex.zeffertt@eu.citrix.com>
Subject: Re: Hosting xenstore in a separate domain
Date: Mon, 15 Jun 2009 12:10:56 +0100
Message-ID: <4A362C40.5060602@eu.citrix.com>
References: <C65BE94F.7EAD%keir.fraser@eu.citrix.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <C65BE94F.7EAD%keir.fraser@eu.citrix.com>
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: Keir Fraser <Keir.Fraser@eu.citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
List-Id: xen-devel@lists.xenproject.org

Yes.  You only need a patched kernel if you uncomment the '#STUBDOM=yes' line in 
/etc/sysconfig/xenstore.  By default xenstore stubdoms are not enabled, and you 
get a dom0 daemon that works equally well with a patched kernel or an unpatched 
kernel.

Regards,

Alex

Keir Fraser wrote:
> Just to check, your tools patches are backwards compatible with old dom0
> kernels when running xenstored in dom0?
> 
>  -- Keir
> 
> On 15/06/2009 10:06, "Alex Zeffertt" <Alex.Zeffertt@eu.citrix.com> wrote:
> 
>> Please note that these xen-unstable patches depend on some minor dom0 kernel
>> patches (*).  I updated Diego's linux-2.6.18-xen.hg patches and posted them to
>> this list.  But if you're using an alternate dom0 kernel you'll need to
>> forward 
>> port these.
>>
>> Regards,
>>
>> Alex
>>
>> (*) The kernel patches provide an ioctl for the xenstore domain builder to
>> create a grant ref and event chan which enables the xenstore domain to access
>> dom0's xenstore page.
>>
>> Keir Fraser wrote:
>>> There are pending patches for this from Diego Ongaro and Alex Zeffert.
>>> Should be in xen-unstable pretty soon now.
>>>
>>>  -- Keir
>>>
>>> On 11/06/2009 23:07, "Adam McKibben" <adam.mckibben@jhuapl.edu> wrote:
>>>
>>>> I've noticed a few projects aimed at dis-aggregating dom0 (stubdom and
>>>> Derek Murray's project to move the domain builder to its own domain).
>>>>
>>>> Has anyone tried to host xenstore in a domain other than Dom0?
>>>>
>>>> What difficulties might such a project encounter?
>>>>
>>>>
>>>> Thanks
>>>>
>>>>
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@lists.xensource.com
>>>> http://lists.xensource.com/xen-devel
>>>
>>>
> 
> 
>