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Re: [Xen-devel] KXen preview now available

To: Jun Koi <junkoi2004@xxxxxxxxx>
Subject: Re: [Xen-devel] KXen preview now available
From: Christian Limpach <christian.limpach@xxxxxxxxx>
Date: Wed, 1 Apr 2009 11:17:26 -0700
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Peter Johnston <Peter.Johnston@xxxxxxxxxx>, Christian Limpach <Christian.Limpach@xxxxxxxxxx>
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Reply-to: Christian.Limpach@xxxxxxxxx
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On Wed, Apr 1, 2009 at 1:00 AM, Jun Koi <junkoi2004@xxxxxxxxx> wrote:
> Sorry but it seems my question is not so clear. I am asking about KXen
> as the hypervisor, but not about guest support.
> I should restate my question as: Currently the hypervisor for Windows
> OS is available for download (as XP/Vista/7 are supported). How about
> the (KXen) hypervisor for Linux? When is it available? And will that
> target upstream, and use virtops? And is there any significant
> difference with KVM?

It's open source, so anybody is welcome to add host support for Linux
or any other OS.  The windows host driver code is intentionally very
portable and will be even more so once we resume work on the MacOS
version.  We try to avoid host-dependent designs but of course also
want to achieve the best performance possible, so we'll probably end
up with a fairly generic base implementation of most interfaces with
some alternative implementations which are optimized for specific host
OS versions.

I don't know enough about KVM to list specific differences, the most
user visible difference is the exact specification of the virtual
hardware, which is identical between Xen and KXen, and eventually the
option to use Xen's paravirtual drivers.


> I guess the answer will be "that is not ready now", but some
> information about future plan would be helpful.
> Thanks,
> J
>>    christian

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