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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-07-10 04:17:00 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-11 10:21:24 +0200 |
| commit | 69a7704d7a80b2563278a0c55c2ca6d6202280dc (patch) | |
| tree | 41c0dc2b5f419b84532388359f24652d398fcfe6 /arch/x86/kernel/e820.c | |
| parent | 27cb0a75ba252ea7294d67232c4bbbac3f2b2656 (diff) | |
| download | blackbird-op-linux-69a7704d7a80b2563278a0c55c2ca6d6202280dc.tar.gz blackbird-op-linux-69a7704d7a80b2563278a0c55c2ca6d6202280dc.zip | |
x86: e820: user-defined memory maps: remove the range instead of update it to reserved
also let mem= to print out modified e820 map too
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/e820.c')
| -rw-r--r-- | arch/x86/kernel/e820.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 9836a079cfd9..3451e0b3f324 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1165,6 +1165,8 @@ static void early_panic(char *msg) panic(msg); } +static int userdef __initdata; + /* "mem=nopentium" disables the 4MB page tables. */ static int __init parse_memopt(char *p) { @@ -1180,17 +1182,15 @@ static int __init parse_memopt(char *p) } #endif + userdef = 1; mem_size = memparse(p, &p); end_user_pfn = mem_size>>PAGE_SHIFT; - e820_update_range(mem_size, ULLONG_MAX - mem_size, - E820_RAM, E820_RESERVED); + e820_remove_range(mem_size, ULLONG_MAX - mem_size, E820_RAM, 1); return 0; } early_param("mem", parse_memopt); -static int userdef __initdata; - static int __init parse_memmap_opt(char *p) { char *oldp; @@ -1230,8 +1230,7 @@ static int __init parse_memmap_opt(char *p) e820_add_region(start_at, mem_size, E820_RESERVED); } else { end_user_pfn = (mem_size >> PAGE_SHIFT); - e820_update_range(mem_size, ULLONG_MAX - mem_size, - E820_RAM, E820_RESERVED); + e820_remove_range(mem_size, ULLONG_MAX - mem_size, E820_RAM, 1); } return *p == '\0' ? 0 : -EINVAL; } |
