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Message-ID: <462D05A0.1020100@zytor.com>
Date: Mon, 23 Apr 2007 12:14:40 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: Jeremy Fitzhardinge <jeremy@...p.org>
CC: "Eric W. Biederman" <ebiederm@...ssion.com>,
Jeremy Fitzhardinge <jeremy@...source.com>,
lkml <linux-kernel@...r.kernel.org>,
Chris Wright <chrisw@...s-sol.org>,
virtualization@...ts.osdl.org, Chuck Ebbert <cebbert@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 10/28] i386: map enough initial memory to create lowmem
mappings
Jeremy Fitzhardinge wrote:
>
> Why not? Er, except in the case where the page is needed to map itself
> - but that can be dealt with with a transient fixmap mapping.
>
It would be *trivial* to make a certain number of page table slots
available at the end of the head.S-generated map.
-hpa
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