From: Huang Ying <ying.huang@intel.com>
Date: Fri, 31 Oct 2008 01:48:08 +0000 (+0800)
Subject: kexec/i386: allocate page table pages dynamically
X-Git-Tag: v2.6.29-rc1~538^2~19^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92be3d6bdf2cb34972ab50e12ad4da1076e690da;p=pandora-kernel.git

kexec/i386: allocate page table pages dynamically

Impact: save .text size when kexec is built in but not loaded

This patch adds an architecture specific struct kimage_arch into
struct kimage. The pointers to page table pages used by kexec are
added to struct kimage_arch. The page tables pages are dynamically
allocated in machine_kexec_prepare instead of statically from BSS
segment. This will save up to 20k memory when kexec image is not
loaded.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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