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Re: [Xen-users] Nested Xen

To: angelo alfano <angeloalfa@xxxxxxxxx>
Subject: Re: [Xen-users] Nested Xen
From: Grant McWilliams <grantmasterflash@xxxxxxxxx>
Date: Tue, 6 Oct 2009 07:22:46 -0700
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On Mon, Oct 5, 2009 at 6:43 AM, angelo alfano <angeloalfa@xxxxxxxxx> wrote:
I have a problem with the nasted Xen.

I have a processore that supports HVM, I have installed Debian Lenny, then I have installed Xen 3.2.0, then I have created a VM in HVM mode.
My question is can be created one other VM in HVM mode?


Angelo Maurizio Alfano
"Dance before the police come"

The last time I checked you could run PV guests inside of an HVM DomU but you couldn't go further. For instance you couldn't have DomU inside of DomU inside of DomU.  If this is what you need then you may want to check out KVM because it's supporting the hardware functions for nesting VM. This would be the proper way of nesting. I've not nested with KVM though. Be aware that nesting in Xen is not very effecient or at least it wasn't.

I don't think adding support for nesting in hardware is a very high priority for the xen developers.

Grant McWilliams
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