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Re: [Xen-ia64-devel] [PATCH] discontig memory support

from [Alex Williamson] [Permanent Link][Original]
To: Kouya SHIMURA <kouya@xxxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [PATCH] discontig memory support
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Sun, 16 Apr 2006 21:33:00 -0600
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On Mon, 2006-04-17 at 11:21 +0900, Kouya SHIMURA wrote:
> Hi Alex,
> 
> I confirmed the same Oops as you.
> I'll try to investigate this.

   Thanks Kouya!

> BTW, I think that it is unnecessary to support large holes on
> dom0 in p2m/vp model. Or dom0 still requires to be configured with 
> virtual memory map because of MMIO. Is it true?

   You may be right.  The page at the end of memory in dom0 goes away
with the p2m/vp patches and that's what causes me to need virtual
memmap/discontig/sparsemem in dom0.  MMIO at high addresses shouldn't
require any special handling of memory in dom0.  Thanks,

        Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab


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