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-rw-r--r--arch/s390/Kconfig19
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index eaaac3788110..e6ec418093e5 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -8,8 +8,8 @@ config MMU
default y
config ZONE_DMA
- bool
- default y
+ def_bool y
+ depends on 64BIT
config LOCKDEP_SUPPORT
bool
@@ -41,6 +41,11 @@ config GENERIC_HWEIGHT
config GENERIC_TIME
def_bool y
+config GENERIC_BUG
+ bool
+ depends on BUG
+ default y
+
config NO_IOMEM
def_bool y
@@ -376,6 +381,8 @@ config SHARED_KERNEL
Select this option, if you want to share the text segment of the
Linux kernel between different VM guests. This reduces memory
usage with lots of guests but greatly increases kernel size.
+ Also if a kernel was IPL'ed from a shared segment the kexec system
+ call will not work.
You should only select this option if you know what you are
doing and want to exploit this feature.
@@ -512,6 +519,14 @@ config KEXEC
current kernel, and to start another kernel. It is like a reboot
but is independent of hardware/microcode support.
+config ZFCPDUMP
+ tristate "zfcpdump support"
+ select SMP
+ default n
+ help
+ Select this option if you want to build an zfcpdump enabled kernel.
+ Refer to "Documentation/s390/zfcpdump.txt" for more details on this.
+
endmenu
source "net/Kconfig"