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kexec/i386: setup kexec page table in C

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Impact: change the kexec bootstrap code implementation from assembly to C

This patch transforms the kexec page tables setup code from assembler
code to C code in machine_kexec_prepare. This improves readability and
reduces code line number.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Huang Ying
2008-10-31 09:48:15 +08:00
committed by Ingo Molnar
parent 92be3d6bdf
commit 9868ee63b8
3 changed files with 49 additions and 141 deletions
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17
arch/x86/include/asm/kexec.h
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@@ -5,21 +5,8 @@
# define PA_CONTROL_PAGE 0
# define VA_CONTROL_PAGE 1
# define PA_PGD 2
# define VA_PGD 3
# define PA_PTE_0 4
# define VA_PTE_0 5
# define PA_PTE_1 6
# define VA_PTE_1 7
# define PA_SWAP_PAGE 8
# ifdef CONFIG_X86_PAE
# define PA_PMD_0 9
# define VA_PMD_0 10
# define PA_PMD_1 11
# define VA_PMD_1 12
# define PAGES_NR 13
# else
# define PAGES_NR 9
# endif
# define PA_SWAP_PAGE 3
# define PAGES_NR 4
#else
# define PA_CONTROL_PAGE 0
# define VA_CONTROL_PAGE 1