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Re: [Xen-users] Nested VM

  • To: S G <issatuni@xxxxxxxxx>
  • From: Todd Deshane <todd.deshane@xxxxxxx>
  • Date: Fri, 24 Jun 2011 05:51:08 -0400
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Fri, 24 Jun 2011 02:52:39 -0700
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On Fri, Jun 24, 2011 at 5:28 AM, S G <issatuni@xxxxxxxxx> wrote:
> Hello,
> As part of my project for my MSc, I am looking for a solution to implement
> nested virtual machines. My current scenario is:
> - I have a server with AMD Phenom II X6 1100T and 8GB RAM - virtualization
> enabled at BIOS.
> - I have installed 64bit CentOS-5.6 with Xen enabled (let's call it as
> base1).
> - On top of base1 I have also installed 64bit CentOS-5.6 (guest1) with Xen
> enabled and I would like to install Debian and WIndows XP on top of guest1,
> when I try to install using Virtual Machine Manager I am not able to see the
> 'Fully Virtualized' option.
> Could you please suggest me how can I deploy nested virtual machines?

There is active development and testing going on for this type of feature.

For AMD, take a look at nested svm

For Intel, take a look at nested vmx

I think the patches are only in xen-unstable at the moment and they
are actively being tweaked and tested. If you try them out and have
problems, post to the xen-devel mailing list (see also


> Thank you.
> Best,
> Sat.
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

Todd Deshane

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