From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Tue, 29 Jul 2014 11:18:34 +0000 (+0100)
Subject: ARM: idmap: add identity mapping usage note
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~199^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5cc87fa8ddf971682fc5dd112e2dfacb11f30cd;p=pandora-kernel.git

ARM: idmap: add identity mapping usage note

Add a note about the usage of the identity mapping; we do not support
accesses outside of the identity map region and kernel image while a
CPU is using the identity map.  This is because the identity mapping
may overwrite vmalloc space, IO mappings, the vectors pages, etc.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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