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Commit 23dcab8f authored by Kumar Gala's avatar Kumar Gala
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powerpc/kexec: Fix boundary case for book-e kexec memory limits 



The KEXEC_*_MEMORY_LIMITs are inclusive addresses.  We define them as
2Gs as that is what we allow mapping via TLBs.  However, this should be
2G - 1 to be inclusive, otherwise if we have >2G of memory in a system
we fail to boot properly via kexec.

Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent cd5b8f87

arch/powerpc/include/asm/kexec.h

+3 −3
Original line number Diff line number Diff line
@@ -8,9 +8,9 @@ 
 * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory

 * and therefore we can only deal with memory within this range

 */

#define KEXEC_SOURCE_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL)

#define KEXEC_DESTINATION_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL)

#define KEXEC_CONTROL_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL)

#define KEXEC_SOURCE_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL - 1)

#define KEXEC_DESTINATION_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL - 1)

#define KEXEC_CONTROL_MEMORY_LIMIT	(2 * 1024 * 1024 * 1024UL - 1)



#else