[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>
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@ -429,10 +429,10 @@ config CRASH_DUMP
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config PHYSICAL_START
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hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
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default "0x1000000" if CRASH_DUMP
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default "0x100000"
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default "0x200000"
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help
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This gives the physical address where the kernel is loaded. Normally
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for regular kernels this value is 0x100000 (1MB). But in the case
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for regular kernels this value is 0x200000 (2MB). But in the case
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of kexec on panic the fail safe kernel needs to run at a different
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address than the panic-ed kernel. This option is used to set the load
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address for kernels used to capture crash dump on being kexec'ed
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