From: Jeremy Fitzhardinge <jeremy@xensource.com>
Date: Wed, 13 Feb 2008 15:20:35 +0000 (+0100)
Subject: x86/early_ioremap: don't assume we're using swapper_pg_dir
X-Git-Tag: v2.6.25-rc2~74^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=37cc8d7f963ba2deec29c9b68716944516a3244f;p=pandora-kernel.git

x86/early_ioremap: don't assume we're using swapper_pg_dir

At the early stages of boot, before the kernel pagetable has been
fully initialized, a Xen kernel will still be running off the
Xen-provided pagetables rather than swapper_pg_dir[].  Therefore,
readback cr3 to determine the base of the pagetable rather than
assuming swapper_pg_dir[].

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Tested-by: Jody Belka <knew-linux@pimb.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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