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| author |   Yinghai Lu <yhlu.kernel@gmail.com> | 2008-07-10 20:38:26 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-07-11 10:24:04 +0200 |
| commit | f361a450bf1ad14e2b003217dbf3958638631265 (patch) | |
| tree | 10c1e4dcc0047f6c37387cada6a0bceba088d2d2 /include/asm-x86/e820.h | |
| parent | x86: reserve SLIT (diff) | |
| download | linux-dev-f361a450bf1ad14e2b003217dbf3958638631265.tar.xz linux-dev-f361a450bf1ad14e2b003217dbf3958638631265.zip | |
x86: introduce max_low_pfn_mapped for 64-bit
when more than 4g memory is installed, don't map the big hole below 4g.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/e820.h')
| -rw-r--r-- | include/asm-x86/e820.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-x86/e820.h b/include/asm-x86/e820.h index 78c03d7bf441..33e793e991d0 100644 --- a/include/asm-x86/e820.h +++ b/include/asm-x86/e820.h @@ -99,7 +99,8 @@ extern void free_early(u64 start, u64 end); extern void early_res_to_bootmem(u64 start, u64 end); extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align); -extern unsigned long e820_end(void); +extern unsigned long e820_end_of_ram_pfn(void); +extern unsigned long e820_end_of_low_ram_pfn(void); extern int e820_find_active_region(const struct e820entry *ei, unsigned long start_pfn, unsigned long last_pfn, |