tree 6ed10cb8a14615ca0bda48f64520c82480397d00
parent 31498a01496ffca3b542bae72b8ec499cd9302db
author Huang Ying <ying.huang@intel.com> 1225417688 +0800
committer Ingo Molnar <mingo@elte.hu> 1225443716 +0100

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>