From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hollis Blanchard <hollisb@us.ibm.com>
Subject: Re: Xen on top of xen
Date: Thu, 10 May 2007 10:45:48 -0500
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	<200705101112.38005.mark.williamson@cl.cam.ac.uk>
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To: Mark Williamson <mark.williamson@cl.cam.ac.uk>
Cc: "Petersson, Mats" <Mats.Petersson@amd.com>, Koripella Srinivas <talkwithsrinivas@yahoo.co.in>, xen-devel@lists.xensource.com
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On Thu, 2007-05-10 at 11:12 +0100, Mark Williamson wrote:
> > Do you (or anyone else) know if the PPC version supports nested
> > virtualization?
> 
> I know z/VM supports it (no surprise - z/VM supports all sort of crazy but 
> cool things), and it seems like the kind of thing IBM might do - precisely 
> for management reasons ;-)  I would guess that the PPC version of Xen doesn't 
> support it (yet) but maybe the POWER hypervisor does?  I've cc-ed Hollis 
> who'll be able to set the record straight :-)

The hardware extensions defined in the Power Architecture do not support
nested virtualization.

-- 
Hollis Blanchard
IBM Linux Technology Center