diff options
| author | Andi Kleen <ak@suse.de> | 2006-08-30 19:37:12 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-08-31 01:05:15 +0200 |
| commit | ceee88223047749ad683d397b19904c3dfb6adeb (patch) | |
| tree | 0ffd471277ba53299690c444e669ea343cba145f /arch/x86_64/kernel/setup.c | |
| parent | [PATCH] x86: Make backtracer fallback logic more bullet-proof (diff) | |
| download | linux-ceee88223047749ad683d397b19904c3dfb6adeb.tar.xz linux-ceee88223047749ad683d397b19904c3dfb6adeb.zip | |
[PATCH] x86_64: Recover 1MB of kernel memory
Noticed by Jan Beulich.
When the kernel was moved from 1MB to 2MB in 2.6.17 the kernel reservation
code wasn't adjusted and it still reserved starting with 1MB. This means 1MB always
were lost.
This patch fixes this by reserving only starting with _text.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/setup.c')
| -rw-r--r-- | arch/x86_64/kernel/setup.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 8a099ff1f8bc..34afad704824 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -521,8 +521,6 @@ static void discover_ebda(void) void __init setup_arch(char **cmdline_p) { - unsigned long kernel_end; - ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV); screen_info = SCREEN_INFO; edid_info = EDID_INFO; @@ -596,8 +594,8 @@ void __init setup_arch(char **cmdline_p) (table_end - table_start) << PAGE_SHIFT); /* reserve kernel */ - kernel_end = round_up(__pa_symbol(&_end),PAGE_SIZE); - reserve_bootmem_generic(HIGH_MEMORY, kernel_end - HIGH_MEMORY); + reserve_bootmem_generic(__pa_symbol(&_text), + __pa_symbol(&_end) - __pa_symbol(&_text)); /* * reserve physical page 0 - it's a special BIOS page on many boxes, |