diff options
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 129 |
1 files changed, 67 insertions, 62 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index e0b98e71ff47..3243f7a52c72 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -1,13 +1,8 @@ -config SCHED_MC - def_bool y - depends on SMP - config MMU def_bool y config ZONE_DMA - def_bool y - depends on 64BIT + def_bool y if 64BIT config LOCKDEP_SUPPORT def_bool y @@ -25,12 +20,10 @@ config RWSEM_XCHGADD_ALGORITHM def_bool y config ARCH_HAS_ILOG2_U32 - bool - default n + def_bool n config ARCH_HAS_ILOG2_U64 - bool - default n + def_bool n config GENERIC_HWEIGHT def_bool y @@ -42,9 +35,7 @@ config GENERIC_CLOCKEVENTS def_bool y config GENERIC_BUG - bool - depends on BUG - default y + def_bool y if BUG config GENERIC_BUG_RELATIVE_POINTERS def_bool y @@ -59,13 +50,10 @@ config ARCH_DMA_ADDR_T_64BIT def_bool 64BIT config GENERIC_LOCKBREAK - bool - default y - depends on SMP && PREEMPT + def_bool y if SMP && PREEMPT config PGSTE - bool - default y if KVM + def_bool y if KVM config VIRT_CPU_ACCOUNTING def_bool y @@ -129,8 +117,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE config SCHED_OMIT_FRAME_POINTER - bool - default y + def_bool y source "init/Kconfig" @@ -143,20 +130,21 @@ comment "Processor type and features" source "kernel/time/Kconfig" config 64BIT - bool "64 bit kernel" + def_bool y + prompt "64 bit kernel" help Select this option if you have an IBM z/Architecture machine and want to use the 64 bit addressing mode. config 32BIT - bool - default y if !64BIT + def_bool y if !64BIT config KTIME_SCALAR def_bool 32BIT config SMP - bool "Symmetric multi-processing support" + def_bool y + prompt "Symmetric multi-processing support" ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If @@ -188,10 +176,10 @@ config NR_CPUS approximately sixteen kilobytes to the kernel image. config HOTPLUG_CPU - bool "Support for hot-pluggable CPUs" + def_bool y + prompt "Support for hot-pluggable CPUs" depends on SMP select HOTPLUG - default n help Say Y here to be able to turn CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu/cpu#. @@ -207,14 +195,16 @@ config SCHED_MC increased overhead in some places. config SCHED_BOOK - bool "Book scheduler support" + def_bool y + prompt "Book scheduler support" depends on SMP && SCHED_MC help Book scheduler support improves the CPU scheduler's decision making when dealing with machines that have several books. config MATHEMU - bool "IEEE FPU emulation" + def_bool y + prompt "IEEE FPU emulation" depends on MARCH_G5 help This option is required for IEEE compliant floating point arithmetic @@ -222,7 +212,8 @@ config MATHEMU need this. config COMPAT - bool "Kernel support for 31 bit emulation" + def_bool y + prompt "Kernel support for 31 bit emulation" depends on 64BIT select COMPAT_BINFMT_ELF help @@ -232,16 +223,14 @@ config COMPAT executing 31 bit applications. It is safe to say "Y". config SYSVIPC_COMPAT - bool - depends on COMPAT && SYSVIPC - default y + def_bool y if COMPAT && SYSVIPC config AUDIT_ARCH - bool - default y + def_bool y config S390_EXEC_PROTECT - bool "Data execute protection" + def_bool y + prompt "Data execute protection" help This option allows to enable a buffer overflow protection for user space programs and it also selects the addressing mode option above. @@ -301,7 +290,8 @@ config MARCH_Z196 endchoice config PACK_STACK - bool "Pack kernel stack" + def_bool y + prompt "Pack kernel stack" help This option enables the compiler option -mkernel-backchain if it is available. If the option is available the compiler supports @@ -314,7 +304,8 @@ config PACK_STACK Say Y if you are unsure. config SMALL_STACK - bool "Use 8kb for kernel stack instead of 16kb" + def_bool n + prompt "Use 8kb for kernel stack instead of 16kb" depends on PACK_STACK && 64BIT && !LOCKDEP help If you say Y here and the compiler supports the -mkernel-backchain @@ -326,7 +317,8 @@ config SMALL_STACK Say N if you are unsure. config CHECK_STACK - bool "Detect kernel stack overflow" + def_bool y + prompt "Detect kernel stack overflow" help This option enables the compiler option -mstack-guard and -mstack-size if they are available. If the compiler supports them @@ -350,7 +342,8 @@ config STACK_GUARD 512 for 64 bit. config WARN_STACK - bool "Emit compiler warnings for function with broken stack usage" + def_bool n + prompt "Emit compiler warnings for function with broken stack usage" help This option enables the compiler options -mwarn-framesize and -mwarn-dynamicstack. If the compiler supports these options it @@ -385,24 +378,24 @@ config ARCH_SPARSEMEM_DEFAULT def_bool y config ARCH_SELECT_MEMORY_MODEL - def_bool y + def_bool y config ARCH_ENABLE_MEMORY_HOTPLUG - def_bool y - depends on SPARSEMEM + def_bool y if SPARSEMEM config ARCH_ENABLE_MEMORY_HOTREMOVE def_bool y config ARCH_HIBERNATION_POSSIBLE - def_bool y if 64BIT + def_bool y if 64BIT source "mm/Kconfig" comment "I/O subsystem configuration" config QDIO - tristate "QDIO support" + def_tristate y + prompt "QDIO support" ---help--- This driver provides the Queued Direct I/O base support for IBM System z. @@ -413,7 +406,8 @@ config QDIO If unsure, say Y. config CHSC_SCH - tristate "Support for CHSC subchannels" + def_tristate y + prompt "Support for CHSC subchannels" help This driver allows usage of CHSC subchannels. A CHSC subchannel is usually present on LPAR only. @@ -431,7 +425,8 @@ config CHSC_SCH comment "Misc" config IPL - bool "Builtin IPL record support" + def_bool y + prompt "Builtin IPL record support" help If you want to use the produced kernel to IPL directly from a device, you have to merge a bootsector specific to the device @@ -463,7 +458,8 @@ config FORCE_MAX_ZONEORDER default "9" config PFAULT - bool "Pseudo page fault support" + def_bool y + prompt "Pseudo page fault support" help Select this option, if you want to use PFAULT pseudo page fault handling under VM. If running native or in LPAR, this option @@ -475,7 +471,8 @@ config PFAULT this option. config SHARED_KERNEL - bool "VM shared kernel support" + def_bool y + prompt "VM shared kernel support" help Select this option, if you want to share the text segment of the Linux kernel between different VM guests. This reduces memory @@ -486,7 +483,8 @@ config SHARED_KERNEL doing and want to exploit this feature. config CMM - tristate "Cooperative memory management" + def_tristate n + prompt "Cooperative memory management" help Select this option, if you want to enable the kernel interface to reduce the memory size of the system. This is accomplished @@ -498,14 +496,16 @@ config CMM option. config CMM_IUCV - bool "IUCV special message interface to cooperative memory management" + def_bool y + prompt "IUCV special message interface to cooperative memory management" depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) help Select this option to enable the special message interface to the cooperative memory management. config APPLDATA_BASE - bool "Linux - VM Monitor Stream, base infrastructure" + def_bool n + prompt "Linux - VM Monitor Stream, base infrastructure" depends on PROC_FS help This provides a kernel interface for creating and updating z/VM APPLDATA @@ -520,7 +520,8 @@ config APPLDATA_BASE The /proc entries can also be read from, showing the current settings. config APPLDATA_MEM - tristate "Monitor memory management statistics" + def_tristate m + prompt "Monitor memory management statistics" depends on APPLDATA_BASE && VM_EVENT_COUNTERS help This provides memory management related data to the Linux - VM Monitor @@ -536,7 +537,8 @@ config APPLDATA_MEM appldata_mem.o. config APPLDATA_OS - tristate "Monitor OS statistics" + def_tristate m + prompt "Monitor OS statistics" depends on APPLDATA_BASE help This provides OS related data to the Linux - VM Monitor Stream, like @@ -550,7 +552,8 @@ config APPLDATA_OS appldata_os.o. config APPLDATA_NET_SUM - tristate "Monitor overall network statistics" + def_tristate m + prompt "Monitor overall network statistics" depends on APPLDATA_BASE && NET help This provides network related data to the Linux - VM Monitor Stream, @@ -567,30 +570,32 @@ config APPLDATA_NET_SUM source kernel/Kconfig.hz config S390_HYPFS_FS - bool "s390 hypervisor file system support" + def_bool y + prompt "s390 hypervisor file system support" select SYS_HYPERVISOR - default y help This is a virtual file system intended to provide accounting information in an s390 hypervisor environment. config KEXEC - bool "kexec system call" + def_bool n + prompt "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 but is independent of hardware/microcode support. config ZFCPDUMP - bool "zfcpdump support" + def_bool n + prompt "zfcpdump support" select SMP - default n help Select this option if you want to build an zfcpdump enabled kernel. Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. config S390_GUEST -bool "s390 guest support for KVM (EXPERIMENTAL)" + def_bool y + prompt "s390 guest support for KVM (EXPERIMENTAL)" depends on 64BIT && EXPERIMENTAL select VIRTIO select VIRTIO_RING @@ -602,9 +607,9 @@ bool "s390 guest support for KVM (EXPERIMENTAL)" the default console. config SECCOMP - bool "Enable seccomp to safely compute untrusted bytecode" + def_bool y + prompt "Enable seccomp to safely compute untrusted bytecode" depends on PROC_FS - default y help This kernel feature is useful for number crunching applications that may need to compute untrusted bytecode during their |