[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: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index e18eb79bf85544fa67cbb287353b5fba29a7f3db..9fad9df866262db83c1e4e8e61ea0aa57138d935 100644 (file)
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -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