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Re: [Xen-users] Running Xen inside Xen?

To: "Grant McWilliams" <grantmasterflash@xxxxxxxxx>
Subject: Re: [Xen-users] Running Xen inside Xen?
From: "Todd Deshane" <deshantm@xxxxxxxxx>
Date: Wed, 15 Oct 2008 13:16:23 -0400
Cc: test <test@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>, Zach Shepherd <xen@xxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
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Reply-to: deshantm@xxxxxxxxx
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> I'm seeing a lot of noise on the kvm lists about nested VMs but over there
> they only work on AMD hardware because Intel hasn't implemented it yet. I'm
> not sure how it works with Xen.
>
> Grant McWilliams

Nested svm 
(http://avikivity.blogspot.com/2008/09/nested-svm-virtualization-for-kvm.html)
is requried for KVM to do any nesting and kvm is in the process of
implementing it.

Xen on the other had doesn't need to nest virtualization extensions
since it doesn't
require hardware support. AFAIK, nested SVM is not implemented for Xen, but it
is probably just a matter of time assuming there is enough interest
from Xen users
and developers.

BTW, Virtualbox also supports nested SVM.

Cheers,
Todd

-- 
Todd Deshane
http://todddeshane.net
http://runningxen.com

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