diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2010-04-04 16:19:03 -0400 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2010-05-24 22:25:32 -0400 |
| commit | b3df895aebe091b1657a42a8c859bd49fc96646b (patch) | |
| tree | 0ae6f069d0774960af631b7979f5cbbb697b2355 /arch/powerpc/Kconfig | |
| parent | 7c08ce718fd04e373d7473918ae02f1c04d5d504 (diff) | |
powerpc/kexec: Add support for FSL-BookE
This adds support kexec on FSL-BookE where the MMU can not be simply
switched off. The code borrows the initial MMU-setup code to create the
identical mapping mapping. The only difference to the original boot code
is the size of the mapping(s) and the executeable address.
The kexec code maps the first 2 GiB of memory in 256 MiB steps. This
should work also on e500v1 boxes.
SMP support is still not available.
(Kumar: Added minor change to build to ifdef CONFIG_PPC_STD_MMU_64 some
code that was PPC64 specific)
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c4c4549c22bb..5887cff16785 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig | |||
| @@ -351,7 +351,7 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE | |||
| 351 | 351 | ||
| 352 | config KEXEC | 352 | config KEXEC |
| 353 | bool "kexec system call (EXPERIMENTAL)" | 353 | bool "kexec system call (EXPERIMENTAL)" |
| 354 | depends on PPC_BOOK3S && EXPERIMENTAL | 354 | depends on (PPC_BOOK3S || (FSL_BOOKE && !SMP)) && EXPERIMENTAL |
| 355 | help | 355 | help |
| 356 | kexec is a system call that implements the ability to shutdown your | 356 | kexec is a system call that implements the ability to shutdown your |
| 357 | current kernel, and to start another kernel. It is like a reboot | 357 | current kernel, and to start another kernel. It is like a reboot |