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Re: [Xen-ia64-devel] [PATCH] Allocate frame table/mpt table at mfn=0

To: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [PATCH] Allocate frame table/mpt table at mfn=0
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Tue, 05 Dec 2006 14:25:50 -0700
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On Mon, 2006-12-04 at 11:33 +0900, Isaku Yamahata wrote:
> Allocate frame table/mpt table at mfn=0 even when memory isn't assigned at
> mfn=0 as work around of transate_domain_pte().
> It returns mfn=0 when the machine page isn't present as a work around
> for memory mapped I/O where no device is assigned.
> Xen might access page_info of mfn=0, so it must be gurantted
> that it exists. Otherwise xen panics with tlb miss fault in xen virtual
> address area.
> Once transate_domain_pte() is fixed correctly, this will be removed.

   Applied, thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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