To: Arjan van de Ven <arjan@infradead.org>
cc: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>, Andrea Arcangeli <andrea@suse.de>,
       linux-kernel@vger.kernel.org, Steven.Hand@cl.cam.ac.uk,
       Christian.Limpach@cl.cam.ac.uk, Keir.Fraser@cl.cam.ac.uk,
       "David S. Miller" <davem@redhat.com>,
       William Lee Irwin III <wli@holomorphy.com>, Ian.Pratt@cl.cam.ac.uk
Subject: Re: [4/7] Xen VMM patch set : /dev/mem io_remap_page_range for CONFIG_XEN 
In-reply-to: Your message of "Tue, 30 Nov 2004 10:04:46 +0100."
             <1101805486.2640.37.camel@laptop.fenrus.org> 
Date: Tue, 30 Nov 2004 12:09:18 +0000
From: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>
Message-Id: <E1CZ6op-0005QS-00@mta1.cl.cam.ac.uk>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 721
Lines: 20

> On Tue, 2004-11-30 at 08:56 +0000, Ian Pratt wrote:
> 
> > In the Xen case, we actually need to use io_remap_page_range for
> > all /dev/mem accesses, so as to be able to map the BIOS area, DMI
> > tables etc.
> 
> look at the /dev/mem patches in the -mm tree... there might be
> infrastructure there that is useful to you

Thanks for the pointer. Having looked through, it's orthogonal
and can't help us, though doesn't conflict with our patch either
(fuzz 2).

Thanks,
Ian
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