ChangeSet 1.2231.1.72, 2005/03/28 19:36:37-08:00, [EMAIL PROTECTED]
[PATCH] x86_64: mem=XXX will now limit kernel memory to XXX instead of
XXX+1MB
mem=XXX will now limit kernel memory to XXX instead of XXX+1MB
Signed-off-by: Suresh Siddha <[EMAIL PROTECTED]>
Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
e820.c | 16 +---------------
1 files changed, 1 insertion(+), 15 deletions(-)
diff -Nru a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
--- a/arch/x86_64/kernel/e820.c 2005-03-28 21:22:22 -08:00
+++ b/arch/x86_64/kernel/e820.c 2005-03-28 21:22:22 -08:00
@@ -507,21 +507,7 @@
void __init parse_memopt(char *p, char **from)
{
- /*
- * mem=XXX[kKmM] limits kernel memory to XXX+1MB
- *
- * It would be more logical to count from 0 instead of from
- * HIGH_MEMORY, but we keep that for now for i386 compatibility.
- *
- * No support for custom mapping like i386. The reason is
- * that we need to read the e820 map anyways to handle the
- * ACPI mappings in the direct map. Also on x86-64 there
- * should be always a good e820 map. This is only an upper
- * limit, you cannot force usage of memory not in e820.
- *
- * -AK
- */
- end_user_pfn = memparse(p, from) + HIGH_MEMORY;
+ end_user_pfn = memparse(p, from);
end_user_pfn >>= PAGE_SHIFT;
}
-
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