linux-kernel - Re: [PATCH 23/25] [PATCH] paravirt hooks for arch initialization

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Date:	Fri, 10 Aug 2007 13:01:24 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Glauber de Oliveira Costa <gcosta@...hat.com>
CC:	Glauber de Oliveira Costa <glommer@...il.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>, lguest@...abs.org,
	linux-kernel@...r.kernel.org, chrisw@...s-sol.org,
	anthony@...emonkey.ws, Steven@...p2.linux-foundation.org,
	akpm@...ux-foundation.org,
	virtualization@...ts.linux-foundation.org, mingo@...e.hu
Subject: Re: [PATCH 23/25] [PATCH] paravirt hooks for arch initialization

Glauber de Oliveira Costa wrote:
> I think the idea you gave me earlier of using probe_kernel_address could
> work. Xen/lguest/put_yours_here that won't use an ebda would then have
> to unmap the page, to make sure a read would fault.

Hm, the memory might be mapped anyway, but we could make sure its all
zero.  discover_ebda should be able to deal with that OK.

    J
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