processors, that is, which share physical processors between
two or more partitions.
+config KEXEC
+ bool "kexec system call (EXPERIMENTAL)"
+ depends on PPC_MULTIPLATFORM && 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.
+
config IBMVIO
depends on PPC_PSERIES || PPC_ISERIES
bool
when dealing with POWER5 cpus at a cost of slightly increased
overhead in some places. If unsure say N here.
-config PREEMPT
- bool "Preemptible Kernel"
- help
- This option reduces the latency of the kernel when reacting to
- real-time or interactive events by allowing a low priority process to
- be preempted even if it is in kernel mode executing a system call.
-
- Say Y here if you are building a kernel for a desktop, embedded
- or real-time system. Say N if you are unsure.
-
-config PREEMPT_BKL
- bool "Preempt The Big Kernel Lock"
- depends on PREEMPT
- default y
- help
- This option reduces the latency of the kernel by making the
- big kernel lock preemptible.
-
- Say Y here if you are building a kernel for a desktop system.
- Say N if you are unsure.
+source "kernel/Kconfig.preempt"
config EEH
bool "PCI Extended Error Handling (EEH)" if EMBEDDED