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[PATCH] x86_64: Move kernel to 2MB

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As suggested by Andi (and Alan), move the default kernel location
from 1Mb to 2Mb, to align to the start of a TLB entry.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andi Kleen 2006-03-25 16:30:13 +01:00 committed by Linus Torvalds
parent a9ba9a3b38
commit 0410360932
1 changed files with 2 additions and 2 deletions
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4
arch/x86_64/Kconfig
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@ -429,10 +429,10 @@ config CRASH_DUMP
config PHYSICAL_START config PHYSICAL_START
hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
default "0x1000000" if CRASH_DUMP default "0x1000000" if CRASH_DUMP
default "0x100000" default "0x200000"
help help
This gives the physical address where the kernel is loaded. Normally This gives the physical address where the kernel is loaded. Normally
for regular kernels this value is 0x100000 (1MB). But in the case for regular kernels this value is 0x200000 (2MB). But in the case
of kexec on panic the fail safe kernel needs to run at a different of kexec on panic the fail safe kernel needs to run at a different
address than the panic-ed kernel. This option is used to set the load address than the panic-ed kernel. This option is used to set the load
address for kernels used to capture crash dump on being kexec'ed address for kernels used to capture crash dump on being kexec'ed