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Re: [Xen-devel] Xen on top of xen

To: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] Xen on top of xen
From: Hollis Blanchard <hollisb@xxxxxxxxxx>
Date: Thu, 10 May 2007 10:45:48 -0500
Cc: "Petersson, Mats" <Mats.Petersson@xxxxxxx>, Koripella Srinivas <talkwithsrinivas@xxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
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Reply-to: Hollis Blanchard <hollisb@xxxxxxxxxx>
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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


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