From: Kees Cook <keescook@chromium.org>
Date: Fri, 11 Oct 2013 00:18:16 +0000 (-0700)
Subject: x86, kaslr: Select random position from e820 maps
X-Git-Tag: v3.14-rc1~156^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82fa9637a2ba285bcc7c5050c73010b2c1b3d803;p=pandora-kernel.git

x86, kaslr: Select random position from e820 maps

Counts available alignment positions across all e820 maps, and chooses
one randomly for the new kernel base address, making sure not to collide
with unsafe memory areas.

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/1381450698-28710-5-git-send-email-keescook@chromium.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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