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Commit 04103609 authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
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[PATCH] x86_64: Move kernel to 2MB 



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: default avatarArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent a9ba9a3b

arch/x86_64/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -429,10 +429,10 @@ config CRASH_DUMP 
config PHYSICAL_START

	hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)

	default "0x1000000" if CRASH_DUMP

	default "0x100000"

	default "0x200000"

	help

	  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

	  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