From: Ian Campbell <ian.campbell@citrix.com>
Date: Wed, 17 Oct 2012 08:39:17 +0000 (+0100)
Subject: xen: arm: make p2m operations NOPs
X-Git-Tag: v3.7-rc3~37^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee7b5958e2494619ee3ff52de68580feed6906a2;p=pandora-kernel.git

xen: arm: make p2m operations NOPs

This makes common code less ifdef-y and is consistent with PVHVM on
x86.

Also note that phys_to_machine_mapping_valid should take a pfn
argument and make it do so.

Add __set_phys_to_machine, make set_phys_to_machine a simple wrapper
(on systems with non-nop implementations the outer one can allocate
new p2m pages).

Make __set_phys_to_machine check for identity mapping or invalid only.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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