bool
default y
-config GENERIC_BUST_SPINLOCK
- bool
+config GENERIC_TIME
+ def_bool y
mainmenu "Linux Kernel Configuration"
Select this option if you have a 64 bit IBM zSeries machine
and want to use the 64 bit addressing mode.
+config 32BIT
+ bool
+ default y if !64BIT
+
config SMP
bool "Symmetric multi-processing support"
---help---
This will be slightly faster but does not work on
older machines such as the z900.
+config MARCH_Z9_109
+ bool "IBM System z9"
+ help
+ Select this to enable optimizations for IBM System z9-109, IBM
+ System z9 Enterprise Class (z9 EC), and IBM System z9 Business
+ Class (z9 BC). The kernel will be slightly faster but will not
+ work on older machines such as the z990, z890, z900, and z800.
+
endchoice
config PACK_STACK
config SMALL_STACK
bool "Use 4kb/8kb for kernel stack instead of 8kb/16kb"
- depends on PACK_STACK
+ depends on PACK_STACK && !LOCKDEP
help
If you say Y here and the compiler supports the -mkernel-backchain
option the kernel will use a smaller kernel stack size. For 31 bit
information in an s390 hypervisor environment.
config KEXEC
- bool "kexec system call (EXPERIMENTAL)"
- depends on EXPERIMENTAL
+ bool "kexec system call"
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
source "fs/Kconfig"
+menu "Instrumentation Support"
+
source "arch/s390/oprofile/Kconfig"
+config KPROBES
+ bool "Kprobes (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && MODULES
+ help
+ Kprobes allows you to trap at almost any kernel address and
+ execute a callback function. register_kprobe() establishes
+ a probepoint and specifies the callback. Kprobes is useful
+ for kernel debugging, non-intrusive instrumentation and testing.
+ If in doubt, say "N".
+
+endmenu
+
source "arch/s390/Kconfig.debug"
source "security/Kconfig"