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Date: Wed, 09 Jan 2008 11:04:49 -0800
From: Jeremy Fitzhardinge <jeremy@goop.org>
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To: Jan Beulich <jbeulich@novell.com>
CC: Ingo Molnar <mingo@elte.hu>, Glauber de Oliveira Costa <glommer@gmail.com>,
       Andi Kleen <ak@suse.de>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 10 of 10] xen: mask out PWT too
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Jan Beulich wrote:
> That's somewhat ugly, as it will need to be undone/modified for Dom0 and
> physical device access support. Jan
>   

Yes, I know, but its a quick workaround for a silent change in 
hypervisor behaviour.

The proper fix would probably mask them out of the supported_pte_flags, 
but that's a little more subtle to get right.

    J