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] Re: [Qemu-devel] [PATCH 00/10] xen: pv domain support.

To: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Qemu-devel] [PATCH 00/10] xen: pv domain support.
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Mon, 06 Apr 2009 13:44:29 -0700
Cc: qemu-devel <qemu-devel@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Alexander Graf <agraf@xxxxxxx>, Laurent Vivier <Laurent@xxxxxxxxx>
Delivery-date: Mon, 06 Apr 2009 13:44:58 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <49D9A6CD.30602@xxxxxxxxxx>
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/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <1238621982-18333-1-git-send-email-kraxel@xxxxxxxxxx> <1238706878.5426.1.camel@Quad> <49D6708D.4000601@xxxxxxxxxx> <88ADCEFD-E057-4264-8447-9E53A661B35D@xxxxxxx> <49D9A6CD.30602@xxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird (X11/20090320)
Gerd Hoffmann wrote:
Hmm.  I suspect xen's direct paging mode makes that quite intrusive as
the kvm mmu code would have to know about this extra p2m translation
step to get the shadow/ept/ntp tables right.  Given that this most
likely would be a odd and rarely tested use case I don't think this
would be a good idea ...

That's mostly encapsulated in the normal pagetable manipulation routines, so if kvm can be convinced to use those to manage its shadow tables, it will all Just Work. That doesn't work well with a non-PAE 32-bit host with kvm's PAE shadow pagetables, but Xen doesn't support non-PAE anyway.


Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>