diff options
| author | Huang Ying <ying.huang@intel.com> | 2008-10-30 21:48:02 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-31 05:01:55 -0400 |
| commit | 31498a01496ffca3b542bae72b8ec499cd9302db (patch) | |
| tree | 8ae851f09116cd3b2b25a2e266308522c28e20a3 /arch/x86/kernel/relocate_kernel_32.S | |
| parent | 721d5dfe7e516954c501d5e9d0dfab379cf4241a (diff) | |
kexec/i386: remove PAGE_SIZE alignment from relocate_kernel
Impact: save kernel .text by loosening kexec page alignment
This patch removes PAGE_SIZE alignment from relocate_kernel(). Before
kexec jump patches are merged, control page is mapped to
relocate_kernel in kexec page tables, so relocate_kernel must be
PAGE_SIZE aligned. Now, control page is mapped to identity mapped
address, so relocate_kernel need not to be PAGE_SIZE aligned any
more. This can reduce a few KB from kernel text segement.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/relocate_kernel_32.S')
| -rw-r--r-- | arch/x86/kernel/relocate_kernel_32.S | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kernel/relocate_kernel_32.S b/arch/x86/kernel/relocate_kernel_32.S index 6f50664b2ba5..377da3f78e8c 100644 --- a/arch/x86/kernel/relocate_kernel_32.S +++ b/arch/x86/kernel/relocate_kernel_32.S | |||
| @@ -39,7 +39,6 @@ | |||
| 39 | #define CP_PA_BACKUP_PAGES_MAP DATA(0x1c) | 39 | #define CP_PA_BACKUP_PAGES_MAP DATA(0x1c) |
| 40 | 40 | ||
| 41 | .text | 41 | .text |
| 42 | .align PAGE_SIZE | ||
| 43 | .globl relocate_kernel | 42 | .globl relocate_kernel |
| 44 | relocate_kernel: | 43 | relocate_kernel: |
| 45 | /* Save the CPU context, used for jumping back */ | 44 | /* Save the CPU context, used for jumping back */ |