Revisit Xen support

[Nathan Stratton Treadway]

On Fri, Apr 01, 2011 at 16:51:04 -0700, Clint Byrum wrote:
> Other than people already having familiarity with Xen, what is a
> compelling reason to support it in favor of, or in addition to, KVM?

I don't know all the details myself, but my coworkers did some testing
and found that KVM was not able to isolate the virtual machines properly
when there was a high IO load.   In the end they switched back to
running Debian on the Dom0 so we could use Xen.

So +1 for Xen Dom0 support in Ubuntu.

							Nathan