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| author |   Yinghai Lu <yhlu.kernel.send@gmail.com> | 2008-03-20 23:58:33 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:41:19 +0200 |
| commit | 272b9cad6e7a2f61b13cfcd7dde0010e02e9376e (patch) | |
| tree | ce0983f52c1a34e1b048a766812dc17607655748 /include/asm-x86/e820_64.h | |
| parent | x86: processor.h - use PAGE_SIZE instead of numeric value (diff) | |
| download | linux-dev-272b9cad6e7a2f61b13cfcd7dde0010e02e9376e.tar.xz linux-dev-272b9cad6e7a2f61b13cfcd7dde0010e02e9376e.zip | |
x86: early memtest to find bad ram
do simple memtest after init_memory_mapping
use find_e820_area_size to find all ram range that is not reserved.
and do some simple bits test to find some bad ram.
if find some bad ram, use reserve_early to exclude that range.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/e820_64.h')
| -rw-r--r-- | include/asm-x86/e820_64.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h index ef653a403e0b..d38820b31c1c 100644 --- a/include/asm-x86/e820_64.h +++ b/include/asm-x86/e820_64.h @@ -16,6 +16,9 @@ #ifndef __ASSEMBLY__ extern unsigned long find_e820_area(unsigned long start, unsigned long end, unsigned long size, unsigned long align); +extern unsigned long find_e820_area_size(unsigned long start, + unsigned long *sizep, + unsigned long align); extern void add_memory_region(unsigned long start, unsigned long size, int type); extern void update_memory_range(u64 start, u64 size, unsigned old_type, |