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[Xen-users] Re: Access Hypervisor Control from DomU

To: Stephan Seitz <s.seitz@xxxxxxxxxxxx>
Subject: [Xen-users] Re: Access Hypervisor Control from DomU
From: Sean Dague <japh@xxxxxxxxxx>
Date: Thu, 30 Mar 2006 08:08:38 -0500
Cc: XEN User - listmembers <xen-users@xxxxxxxxxxxxxxxxxxx>
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On Thu, Mar 30, 2006 at 07:43:47AM +0200, Stephan Seitz wrote:
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> 
> Hello,
> 
> weeks ago we moved one x86_32 / breezy badger / xen 3.0.1 machine to
> our colo for testing purposes. after a remote reboot we lost network
> connection to the dom0 (interessting, but as read here on the list,
> other people do have strange networking problems, too). As it was
> possible to get connection to the domU's, i scheduled this task
> because driving to the colo isn't much fun...
> Yesterday, I needed to reboot one domU, but this machine didn't come back.
> 
> My question, is it possible to investigate this behaviour (and
> ideally, xm destroy / create) from one of the live domU's ? I know,
> this would be a security issue, but is there _any_ access back to the
> dom0 like the xm console from dom0 to domU's ?

For exactly the reasons you stated (security), the answer is no.

        -Sean

-- 
Sean Dague
IBM Linux Technology Center                     email: japh@xxxxxxxxxx
Open Hypervisor Team                           alt: sldague@xxxxxxxxxx

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