[Oneiric-Topic] Revisit Xen support

Raphaël Pinson raphink at ubuntu.com
Sat Apr 2 00:05:00 UTC 2011

On Sat, Apr 2, 2011 at 1:51 AM, Clint Byrum <clint at ubuntu.com> wrote:
> Excerpts from Chuck Short's message of Wed Mar 30 07:27:50 -0700 2011:
>> Hi,
>> In the past Xen support in Ubuntu as a host has been difficult for a
>> variety of reasons most notably no upstream kernel support. Now that
>> dom0 should be coming into the vanilla kernel soon. I think its time to
>> revisit supporting Xen as a hypervisor as well.
> Just playing devil's advocate here.
> Other than people already having familiarity with Xen, what is a
> compelling reason to support it in favor of, or in addition to, KVM?

Familiarity is a good reason I think, but also industry standards, and
hardware considerations. I think a lot of big companies expect major
distributions such as Ubuntu to provide a proper support for such a
standard as Xen. I know it came as a disappointment for us that using
Lucid as a (production) Xen dom0 was nearly impossible. Also, afair,
KVM requires hardware support. Most recent machines provide it, but
it's not rare to find servers that are too old to use it, and then
you'd rather use Xen for servers than VMWare...


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