linux-kernel - Re: [patch 3/7] x86, cpa: make the kernel physical mapping initialization a two pass sequence

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Date:	Mon, 06 Oct 2008 16:09:55 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
CC:	mingo@...e.hu, hpa@...or.com, tglx@...utronix.de,
	arjan@...ux.intel.com, venkatesh.pallipadi@...el.com,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 3/7] x86, cpa: make the kernel physical mapping initialization
 a two pass sequence

Jeremy Fitzhardinge wrote:
> As it is, I suspect it will take a non-trivial amount of work to 
> restore Xen with this code in place (touching this code is always 
> non-trivial).  I haven't looked into it in depth yet, but there's a 
> few stand out "bad for Xen" pieces of code here.  (And I haven't 
> tested 32-bit yet.)

32-bit Xen is OK with this patch.  Reverting it restores 64-bit Xen.

    J
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