This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-devel] Microsoft plans 'hypervisor' for Longhorn

To: mark.williamson@xxxxxxxxxxxx
Subject: Re: [Xen-devel] Microsoft plans 'hypervisor' for Longhorn
From: aq <aquynh@xxxxxxxxx>
Date: Tue, 7 Jun 2005 20:55:40 -0500
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 08 Jun 2005 01:54:49 +0000
Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=A8J2DZZ1t1jamOTSs780VO8tLaor4FCaeJFkodYejMu2rRzMxlyySH6FyIWzq5wurkfLPC3+f4nGQbmQaRXlC7OTFSFtbix9FpXsG7Rk11sFgkSvALrzqBB3EsIAu11T4fymIW72WQeKyYsRbXhFf+vk1H0o8X7/ACGLKwjVc5M=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <Prayer.>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <000b01c56bc5$b6a1bef0$0201a8c0@hawk> <Prayer.>
Reply-to: aq <aquynh@xxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
On 08 Jun 2005 02:21:04 +0100, M.A. Williamson <maw48@xxxxxxxxx> wrote:
> > Article mentions Xen as Microsoft's competition.
> The MS hypervisor is a very interesting beast from our PoV: * drivers run
> in a dom0-like "parent" partition (cut down Longhorn) * "child" partitions
> devices are plumbed through this * VMM-aware OSes can use APIs called
> "enlightenments" (don't you usually achieve enlightenment through
> practising Zen? :-D) to avoid full-virt penalties
> Their roadmap includes live migration and suspend-resume, USB
> virtualisation, etc.
> It'll be interesting to see if they require hypervisor-enabled hardware or
> if they pull in the binary scanning / rewriting from VirtualPC. It'll also
> be interesting to see just how open their "open" device / VMM interfaces
> are: in particular, can Linux support them as a guest, can Xen fake them
> out to boost performance when running Longhorn guests?

yeah, i like this point: the chance for Xen to fake their hypervisor
to run Longhorn is really interesting ;-)


Xen-devel mailing list