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Diffstat (limited to 'arch/ppc/Kconfig')
| -rw-r--r-- | arch/ppc/Kconfig | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index 979590a9baf9..a7835cd3f51f 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig @@ -217,6 +217,26 @@ config MATH_EMULATION here. Saying Y here will not hurt performance (on any machine) but will increase the size of the kernel. +config KEXEC + bool "kexec system call (EXPERIMENTAL)" + depends on EXPERIMENTAL + help + kexec is a system call that implements the ability to shutdown your + current kernel, and to start another kernel. It is like a reboot + but it is indepedent of the system firmware. And like a reboot + you can start any kernel with it, not just Linux. + + The name comes from the similiarity to the exec system call. + + It is an ongoing process to be certain the hardware in a machine + is properly shutdown, so do not be surprised if this code does not + initially work for you. It may help to enable device hotplugging + support. As of this writing the exact hardware interface is + strongly in flux, so no good recommendation can be made. + + In the GameCube implementation, kexec allows you to load and + run DOL files, including kernel and homebrew DOLs. + source "drivers/cpufreq/Kconfig" config CPU_FREQ_PMAC |