Version:  2.0.40 2.2.26 2.4.37 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15

Linux/arch/s390/Kconfig

  1 config MMU
  2         def_bool y
  3 
  4 config ZONE_DMA
  5         def_bool y
  6 
  7 config LOCKDEP_SUPPORT
  8         def_bool y
  9 
 10 config STACKTRACE_SUPPORT
 11         def_bool y
 12 
 13 config HAVE_LATENCYTOP_SUPPORT
 14         def_bool y
 15 
 16 config RWSEM_GENERIC_SPINLOCK
 17         bool
 18 
 19 config RWSEM_XCHGADD_ALGORITHM
 20         def_bool y
 21 
 22 config ARCH_HAS_ILOG2_U32
 23         def_bool n
 24 
 25 config ARCH_HAS_ILOG2_U64
 26         def_bool n
 27 
 28 config GENERIC_HWEIGHT
 29         def_bool y
 30 
 31 config GENERIC_BUG
 32         def_bool y if BUG
 33 
 34 config GENERIC_BUG_RELATIVE_POINTERS
 35         def_bool y
 36 
 37 config ARCH_DMA_ADDR_T_64BIT
 38         def_bool 64BIT
 39 
 40 config GENERIC_LOCKBREAK
 41         def_bool y if SMP && PREEMPT
 42 
 43 config PGSTE
 44         def_bool y if KVM
 45 
 46 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 47         def_bool y
 48 
 49 config KEXEC
 50         def_bool y
 51 
 52 config AUDIT_ARCH
 53         def_bool y
 54 
 55 config NO_IOPORT_MAP
 56         def_bool y
 57 
 58 config PCI_QUIRKS
 59         def_bool n
 60 
 61 config S390
 62         def_bool y
 63         select ARCH_DISCARD_MEMBLOCK
 64         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 65         select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 66         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 67         select ARCH_INLINE_READ_LOCK
 68         select ARCH_INLINE_READ_LOCK_BH
 69         select ARCH_INLINE_READ_LOCK_IRQ
 70         select ARCH_INLINE_READ_LOCK_IRQSAVE
 71         select ARCH_INLINE_READ_TRYLOCK
 72         select ARCH_INLINE_READ_UNLOCK
 73         select ARCH_INLINE_READ_UNLOCK_BH
 74         select ARCH_INLINE_READ_UNLOCK_IRQ
 75         select ARCH_INLINE_READ_UNLOCK_IRQRESTORE
 76         select ARCH_INLINE_SPIN_LOCK
 77         select ARCH_INLINE_SPIN_LOCK_BH
 78         select ARCH_INLINE_SPIN_LOCK_IRQ
 79         select ARCH_INLINE_SPIN_LOCK_IRQSAVE
 80         select ARCH_INLINE_SPIN_TRYLOCK
 81         select ARCH_INLINE_SPIN_TRYLOCK_BH
 82         select ARCH_INLINE_SPIN_UNLOCK
 83         select ARCH_INLINE_SPIN_UNLOCK_BH
 84         select ARCH_INLINE_SPIN_UNLOCK_IRQ
 85         select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
 86         select ARCH_INLINE_WRITE_LOCK
 87         select ARCH_INLINE_WRITE_LOCK_BH
 88         select ARCH_INLINE_WRITE_LOCK_IRQ
 89         select ARCH_INLINE_WRITE_LOCK_IRQSAVE
 90         select ARCH_INLINE_WRITE_TRYLOCK
 91         select ARCH_INLINE_WRITE_UNLOCK
 92         select ARCH_INLINE_WRITE_UNLOCK_BH
 93         select ARCH_INLINE_WRITE_UNLOCK_IRQ
 94         select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
 95         select ARCH_SAVE_PAGE_KEYS if HIBERNATION
 96         select ARCH_USE_CMPXCHG_LOCKREF
 97         select ARCH_WANT_IPC_PARSE_VERSION
 98         select BUILDTIME_EXTABLE_SORT
 99         select CLONE_BACKWARDS2
100         select GENERIC_CLOCKEVENTS
101         select GENERIC_CPU_DEVICES if !SMP
102         select GENERIC_FIND_FIRST_BIT
103         select GENERIC_SMP_IDLE_THREAD
104         select GENERIC_TIME_VSYSCALL
105         select HAVE_ALIGNED_STRUCT_PAGE if SLUB
106         select HAVE_ARCH_AUDITSYSCALL
107         select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
108         select HAVE_ARCH_SECCOMP_FILTER
109         select HAVE_ARCH_TRACEHOOK
110         select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT
111         select HAVE_BPF_JIT if 64BIT && PACK_STACK
112         select HAVE_CMPXCHG_DOUBLE
113         select HAVE_CMPXCHG_LOCAL
114         select HAVE_C_RECORDMCOUNT
115         select HAVE_DEBUG_KMEMLEAK
116         select HAVE_DYNAMIC_FTRACE
117         select HAVE_FTRACE_MCOUNT_RECORD
118         select HAVE_FUNCTION_GRAPH_TRACER
119         select HAVE_FUNCTION_TRACER
120         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
121         select HAVE_FUTEX_CMPXCHG if FUTEX
122         select HAVE_KERNEL_BZIP2
123         select HAVE_KERNEL_GZIP
124         select HAVE_KERNEL_LZ4
125         select HAVE_KERNEL_LZMA
126         select HAVE_KERNEL_LZO
127         select HAVE_KERNEL_XZ
128         select HAVE_KPROBES
129         select HAVE_KRETPROBES
130         select HAVE_KVM if 64BIT
131         select HAVE_MEMBLOCK
132         select HAVE_MEMBLOCK_NODE_MAP
133         select HAVE_MOD_ARCH_SPECIFIC
134         select HAVE_OPROFILE
135         select HAVE_PERF_EVENTS
136         select HAVE_REGS_AND_STACK_ACCESS_API
137         select HAVE_SYSCALL_TRACEPOINTS
138         select HAVE_UID16 if 32BIT
139         select HAVE_VIRT_CPU_ACCOUNTING
140         select KTIME_SCALAR if 32BIT
141         select MODULES_USE_ELF_RELA
142         select OLD_SIGACTION
143         select OLD_SIGSUSPEND3
144         select SYSCTL_EXCEPTION_TRACE
145         select TTY
146         select VIRT_CPU_ACCOUNTING
147         select VIRT_TO_BUS
148 
149 config SCHED_OMIT_FRAME_POINTER
150         def_bool y
151 
152 source "init/Kconfig"
153 
154 source "kernel/Kconfig.freezer"
155 
156 menu "Processor type and features"
157 
158 config HAVE_MARCH_Z900_FEATURES
159         def_bool n
160 
161 config HAVE_MARCH_Z990_FEATURES
162         def_bool n
163         select HAVE_MARCH_Z900_FEATURES
164 
165 config HAVE_MARCH_Z9_109_FEATURES
166         def_bool n
167         select HAVE_MARCH_Z990_FEATURES
168 
169 config HAVE_MARCH_Z10_FEATURES
170         def_bool n
171         select HAVE_MARCH_Z9_109_FEATURES
172 
173 config HAVE_MARCH_Z196_FEATURES
174         def_bool n
175         select HAVE_MARCH_Z10_FEATURES
176 
177 config HAVE_MARCH_ZEC12_FEATURES
178         def_bool n
179         select HAVE_MARCH_Z196_FEATURES
180 
181 choice
182         prompt "Processor type"
183         default MARCH_G5
184 
185 config MARCH_G5
186         bool "System/390 model G5 and G6"
187         depends on !64BIT
188         help
189           Select this to build a 31 bit kernel that works
190           on all ESA/390 and z/Architecture machines.
191 
192 config MARCH_Z900
193         bool "IBM zSeries model z800 and z900"
194         select HAVE_MARCH_Z900_FEATURES if 64BIT
195         help
196           Select this to enable optimizations for model z800/z900 (2064 and
197           2066 series). This will enable some optimizations that are not
198           available on older ESA/390 (31 Bit) only CPUs.
199 
200 config MARCH_Z990
201         bool "IBM zSeries model z890 and z990"
202         select HAVE_MARCH_Z990_FEATURES if 64BIT
203         help
204           Select this to enable optimizations for model z890/z990 (2084 and
205           2086 series). The kernel will be slightly faster but will not work
206           on older machines.
207 
208 config MARCH_Z9_109
209         bool "IBM System z9"
210         select HAVE_MARCH_Z9_109_FEATURES if 64BIT
211         help
212           Select this to enable optimizations for IBM System z9 (2094 and
213           2096 series). The kernel will be slightly faster but will not work
214           on older machines.
215 
216 config MARCH_Z10
217         bool "IBM System z10"
218         select HAVE_MARCH_Z10_FEATURES if 64BIT
219         help
220           Select this to enable optimizations for IBM System z10 (2097 and
221           2098 series). The kernel will be slightly faster but will not work
222           on older machines.
223 
224 config MARCH_Z196
225         bool "IBM zEnterprise 114 and 196"
226         select HAVE_MARCH_Z196_FEATURES if 64BIT
227         help
228           Select this to enable optimizations for IBM zEnterprise 114 and 196
229           (2818 and 2817 series). The kernel will be slightly faster but will
230           not work on older machines.
231 
232 config MARCH_ZEC12
233         bool "IBM zBC12 and zEC12"
234         select HAVE_MARCH_ZEC12_FEATURES if 64BIT
235         help
236           Select this to enable optimizations for IBM zBC12 and zEC12 (2828 and
237           2827 series). The kernel will be slightly faster but will not work on
238           older machines.
239 
240 endchoice
241 
242 config MARCH_G5_TUNE
243         def_bool TUNE_G5 || MARCH_G5 && TUNE_DEFAULT
244 
245 config MARCH_Z900_TUNE
246         def_bool TUNE_Z900 || MARCH_Z900 && TUNE_DEFAULT
247 
248 config MARCH_Z990_TUNE
249         def_bool TUNE_Z990 || MARCH_Z990 && TUNE_DEFAULT
250 
251 config MARCH_Z9_109_TUNE
252         def_bool TUNE_Z9_109 || MARCH_Z9_109 && TUNE_DEFAULT
253 
254 config MARCH_Z10_TUNE
255         def_bool TUNE_Z10 || MARCH_Z10 && TUNE_DEFAULT
256 
257 config MARCH_Z196_TUNE
258         def_bool TUNE_Z196 || MARCH_Z196 && TUNE_DEFAULT
259 
260 config MARCH_ZEC12_TUNE
261         def_bool TUNE_ZEC12 || MARCH_ZEC12 && TUNE_DEFAULT
262 
263 choice
264         prompt "Tune code generation"
265         default TUNE_DEFAULT
266         help
267           Cause the compiler to tune (-mtune) the generated code for a machine.
268           This will make the code run faster on the selected machine but
269           somewhat slower on other machines.
270           This option only changes how the compiler emits instructions, not the
271           selection of instructions itself, so the resulting kernel will run on
272           all other machines.
273 
274 config TUNE_DEFAULT
275         bool "Default"
276         help
277           Tune the generated code for the target processor for which the kernel
278           will be compiled.
279 
280 config TUNE_G5
281         bool "System/390 model G5 and G6"
282 
283 config TUNE_Z900
284         bool "IBM zSeries model z800 and z900"
285 
286 config TUNE_Z990
287         bool "IBM zSeries model z890 and z990"
288 
289 config TUNE_Z9_109
290         bool "IBM System z9"
291 
292 config TUNE_Z10
293         bool "IBM System z10"
294 
295 config TUNE_Z196
296         bool "IBM zEnterprise 114 and 196"
297 
298 config TUNE_ZEC12
299         bool "IBM zBC12 and zEC12"
300 
301 endchoice
302 
303 config 64BIT
304         def_bool y
305         prompt "64 bit kernel"
306         help
307           Select this option if you have an IBM z/Architecture machine
308           and want to use the 64 bit addressing mode.
309 
310 config 32BIT
311         def_bool y if !64BIT
312 
313 config COMPAT
314         def_bool y
315         prompt "Kernel support for 31 bit emulation"
316         depends on 64BIT
317         select COMPAT_BINFMT_ELF if BINFMT_ELF
318         select ARCH_WANT_OLD_COMPAT_IPC
319         select COMPAT_OLD_SIGACTION
320         help
321           Select this option if you want to enable your system kernel to
322           handle system-calls from ELF binaries for 31 bit ESA.  This option
323           (and some other stuff like libraries and such) is needed for
324           executing 31 bit applications.  It is safe to say "Y".
325 
326 config SYSVIPC_COMPAT
327         def_bool y if COMPAT && SYSVIPC
328 
329 config KEYS_COMPAT
330         def_bool y if COMPAT && KEYS
331 
332 config SMP
333         def_bool y
334         prompt "Symmetric multi-processing support"
335         ---help---
336           This enables support for systems with more than one CPU. If you have
337           a system with only one CPU, like most personal computers, say N. If
338           you have a system with more than one CPU, say Y.
339 
340           If you say N here, the kernel will run on uni- and multiprocessor
341           machines, but will use only one CPU of a multiprocessor machine. If
342           you say Y here, the kernel will run on many, but not all,
343           uniprocessor machines. On a uniprocessor machine, the kernel
344           will run faster if you say N here.
345 
346           See also the SMP-HOWTO available at
347           <http://www.tldp.org/docs.html#howto>.
348 
349           Even if you don't know what to do here, say Y.
350 
351 config NR_CPUS
352         int "Maximum number of CPUs (2-256)"
353         range 2 256
354         depends on SMP
355         default "32" if !64BIT
356         default "64" if 64BIT
357         help
358           This allows you to specify the maximum number of CPUs which this
359           kernel will support. The maximum supported value is 256 and the
360           minimum value which makes sense is 2.
361 
362           This is purely to save memory - each supported CPU adds
363           approximately sixteen kilobytes to the kernel image.
364 
365 config HOTPLUG_CPU
366         def_bool y
367         prompt "Support for hot-pluggable CPUs"
368         depends on SMP
369         help
370           Say Y here to be able to turn CPUs off and on. CPUs
371           can be controlled through /sys/devices/system/cpu/cpu#.
372           Say N if you want to disable CPU hotplug.
373 
374 config SCHED_MC
375         def_bool n
376 
377 config SCHED_BOOK
378         def_bool y
379         prompt "Book scheduler support"
380         depends on SMP
381         select SCHED_MC
382         help
383           Book scheduler support improves the CPU scheduler's decision making
384           when dealing with machines that have several books.
385 
386 source kernel/Kconfig.preempt
387 
388 config MATHEMU
389         def_bool y
390         prompt "IEEE FPU emulation"
391         depends on MARCH_G5
392         help
393           This option is required for IEEE compliant floating point arithmetic
394           on older ESA/390 machines. Say Y unless you know your machine doesn't
395           need this.
396 
397 source kernel/Kconfig.hz
398 
399 endmenu
400 
401 menu "Memory setup"
402 
403 config ARCH_SPARSEMEM_ENABLE
404         def_bool y
405         select SPARSEMEM_VMEMMAP_ENABLE
406         select SPARSEMEM_VMEMMAP
407         select SPARSEMEM_STATIC if !64BIT
408 
409 config ARCH_SPARSEMEM_DEFAULT
410         def_bool y
411 
412 config ARCH_SELECT_MEMORY_MODEL
413         def_bool y
414 
415 config ARCH_ENABLE_MEMORY_HOTPLUG
416         def_bool y if SPARSEMEM
417 
418 config ARCH_ENABLE_MEMORY_HOTREMOVE
419         def_bool y
420 
421 config ARCH_ENABLE_SPLIT_PMD_PTLOCK
422         def_bool y
423         depends on 64BIT
424 
425 config FORCE_MAX_ZONEORDER
426         int
427         default "9"
428 
429 source "mm/Kconfig"
430 
431 config PACK_STACK
432         def_bool y
433         prompt "Pack kernel stack"
434         help
435           This option enables the compiler option -mkernel-backchain if it
436           is available. If the option is available the compiler supports
437           the new stack layout which dramatically reduces the minimum stack
438           frame size. With an old compiler a non-leaf function needs a
439           minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With
440           -mkernel-backchain the minimum size drops to 16 byte on 31 bit
441           and 24 byte on 64 bit.
442 
443           Say Y if you are unsure.
444 
445 config CHECK_STACK
446         def_bool y
447         prompt "Detect kernel stack overflow"
448         help
449           This option enables the compiler option -mstack-guard and
450           -mstack-size if they are available. If the compiler supports them
451           it will emit additional code to each function prolog to trigger
452           an illegal operation if the kernel stack is about to overflow.
453 
454           Say N if you are unsure.
455 
456 config STACK_GUARD
457         int "Size of the guard area (128-1024)"
458         range 128 1024
459         depends on CHECK_STACK
460         default "256"
461         help
462           This allows you to specify the size of the guard area at the lower
463           end of the kernel stack. If the kernel stack points into the guard
464           area on function entry an illegal operation is triggered. The size
465           needs to be a power of 2. Please keep in mind that the size of an
466           interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit.
467           The minimum size for the stack guard should be 256 for 31 bit and
468           512 for 64 bit.
469 
470 config WARN_DYNAMIC_STACK
471         def_bool n
472         prompt "Emit compiler warnings for function with dynamic stack usage"
473         help
474           This option enables the compiler option -mwarn-dynamicstack. If the
475           compiler supports this options generates warnings for functions
476           that dynamically allocate stack space using alloca.
477 
478           Say N if you are unsure.
479 
480 endmenu
481 
482 menu "I/O subsystem"
483 
484 config QDIO
485         def_tristate y
486         prompt "QDIO support"
487         ---help---
488           This driver provides the Queued Direct I/O base support for
489           IBM System z.
490 
491           To compile this driver as a module, choose M here: the
492           module will be called qdio.
493 
494           If unsure, say Y.
495 
496 menuconfig PCI
497         bool "PCI support"
498         default n
499         depends on 64BIT
500         select PCI_MSI
501         help
502           Enable PCI support.
503 
504 if PCI
505 
506 config PCI_NR_FUNCTIONS
507         int "Maximum number of PCI functions (1-4096)"
508         range 1 4096
509         default "64"
510         help
511           This allows you to specify the maximum number of PCI functions which
512           this kernel will support.
513 
514 config PCI_NR_MSI
515         int "Maximum number of MSI interrupts (64-32768)"
516         range 64 32768
517         default "256"
518         help
519           This defines the number of virtual interrupts the kernel will
520           provide for MSI interrupts. If you configure your system to have
521           too few drivers will fail to allocate MSI interrupts for all
522           PCI devices.
523 
524 source "drivers/pci/Kconfig"
525 source "drivers/pci/pcie/Kconfig"
526 source "drivers/pci/hotplug/Kconfig"
527 
528 endif   # PCI
529 
530 config PCI_DOMAINS
531         def_bool PCI
532 
533 config HAS_IOMEM
534         def_bool PCI
535 
536 config IOMMU_HELPER
537         def_bool PCI
538 
539 config HAS_DMA
540         def_bool PCI
541         select HAVE_DMA_API_DEBUG
542 
543 config NEED_SG_DMA_LENGTH
544         def_bool PCI
545 
546 config HAVE_DMA_ATTRS
547         def_bool PCI
548 
549 config NEED_DMA_MAP_STATE
550         def_bool PCI
551 
552 config CHSC_SCH
553         def_tristate m
554         prompt "Support for CHSC subchannels"
555         help
556           This driver allows usage of CHSC subchannels. A CHSC subchannel
557           is usually present on LPAR only.
558           The driver creates a device /dev/chsc, which may be used to
559           obtain I/O configuration information about the machine and
560           to issue asynchronous chsc commands (DANGEROUS).
561           You will usually only want to use this interface on a special
562           LPAR designated for system management.
563 
564           To compile this driver as a module, choose M here: the
565           module will be called chsc_sch.
566 
567           If unsure, say N.
568 
569 config SCM_BUS
570         def_bool y
571         depends on 64BIT
572         prompt "SCM bus driver"
573         help
574           Bus driver for Storage Class Memory.
575 
576 config EADM_SCH
577         def_tristate m
578         prompt "Support for EADM subchannels"
579         depends on SCM_BUS
580         help
581           This driver allows usage of EADM subchannels. EADM subchannels act
582           as a communication vehicle for SCM increments.
583 
584           To compile this driver as a module, choose M here: the
585           module will be called eadm_sch.
586 
587 endmenu
588 
589 menu "Dump support"
590 
591 config CRASH_DUMP
592         bool "kernel crash dumps"
593         depends on 64BIT && SMP
594         select KEXEC
595         select ZFCPDUMP
596         help
597           Generate crash dump after being started by kexec.
598           Crash dump kernels are loaded in the main kernel with kexec-tools
599           into a specially reserved region and then later executed after
600           a crash by kdump/kexec.
601           For more details see Documentation/kdump/kdump.txt
602 
603 config ZFCPDUMP
604         def_bool n
605         prompt "zfcpdump support"
606         depends on 64BIT && SMP
607         help
608           Select this option if you want to build an zfcpdump enabled kernel.
609           Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
610 
611 endmenu
612 
613 menu "Executable file formats / Emulations"
614 
615 source "fs/Kconfig.binfmt"
616 
617 config SECCOMP
618         def_bool y
619         prompt "Enable seccomp to safely compute untrusted bytecode"
620         depends on PROC_FS
621         help
622           This kernel feature is useful for number crunching applications
623           that may need to compute untrusted bytecode during their
624           execution. By using pipes or other transports made available to
625           the process as file descriptors supporting the read/write
626           syscalls, it's possible to isolate those applications in
627           their own address space using seccomp. Once seccomp is
628           enabled via /proc/<pid>/seccomp, it cannot be disabled
629           and the task is only allowed to execute a few safe syscalls
630           defined by each seccomp mode.
631 
632           If unsure, say Y.
633 
634 endmenu
635 
636 menu "Power Management"
637 
638 config ARCH_HIBERNATION_POSSIBLE
639         def_bool y if 64BIT
640 
641 source "kernel/power/Kconfig"
642 
643 endmenu
644 
645 source "net/Kconfig"
646 
647 config PCMCIA
648         def_bool n
649 
650 config CCW
651         def_bool y
652 
653 source "drivers/Kconfig"
654 
655 source "fs/Kconfig"
656 
657 source "arch/s390/Kconfig.debug"
658 
659 source "security/Kconfig"
660 
661 source "crypto/Kconfig"
662 
663 source "lib/Kconfig"
664 
665 menu "Virtualization"
666 
667 config PFAULT
668         def_bool y
669         prompt "Pseudo page fault support"
670         help
671           Select this option, if you want to use PFAULT pseudo page fault
672           handling under VM. If running native or in LPAR, this option
673           has no effect. If your VM does not support PFAULT, PAGEEX
674           pseudo page fault handling will be used.
675           Note that VM 4.2 supports PFAULT but has a bug in its
676           implementation that causes some problems.
677           Everybody who wants to run Linux under VM != VM4.2 should select
678           this option.
679 
680 config SHARED_KERNEL
681         bool "VM shared kernel support"
682         depends on !JUMP_LABEL
683         help
684           Select this option, if you want to share the text segment of the
685           Linux kernel between different VM guests. This reduces memory
686           usage with lots of guests but greatly increases kernel size.
687           Also if a kernel was IPL'ed from a shared segment the kexec system
688           call will not work.
689           You should only select this option if you know what you are
690           doing and want to exploit this feature.
691 
692 config CMM
693         def_tristate n
694         prompt "Cooperative memory management"
695         help
696           Select this option, if you want to enable the kernel interface
697           to reduce the memory size of the system. This is accomplished
698           by allocating pages of memory and put them "on hold". This only
699           makes sense for a system running under VM where the unused pages
700           will be reused by VM for other guest systems. The interface
701           allows an external monitor to balance memory of many systems.
702           Everybody who wants to run Linux under VM should select this
703           option.
704 
705 config CMM_IUCV
706         def_bool y
707         prompt "IUCV special message interface to cooperative memory management"
708         depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV)
709         help
710           Select this option to enable the special message interface to
711           the cooperative memory management.
712 
713 config APPLDATA_BASE
714         def_bool n
715         prompt "Linux - VM Monitor Stream, base infrastructure"
716         depends on PROC_FS
717         help
718           This provides a kernel interface for creating and updating z/VM APPLDATA
719           monitor records. The monitor records are updated at certain time
720           intervals, once the timer is started.
721           Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer,
722           i.e. enables or disables monitoring on the Linux side.
723           A custom interval value (in seconds) can be written to
724           /proc/appldata/interval.
725 
726           Defaults are 60 seconds interval and timer off.
727           The /proc entries can also be read from, showing the current settings.
728 
729 config APPLDATA_MEM
730         def_tristate m
731         prompt "Monitor memory management statistics"
732         depends on APPLDATA_BASE && VM_EVENT_COUNTERS
733         help
734           This provides memory management related data to the Linux - VM Monitor
735           Stream, like paging/swapping rate, memory utilisation, etc.
736           Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM
737           APPLDATA monitor record, i.e. enables or disables monitoring this record
738           on the z/VM side.
739 
740           Default is disabled.
741           The /proc entry can also be read from, showing the current settings.
742 
743           This can also be compiled as a module, which will be called
744           appldata_mem.o.
745 
746 config APPLDATA_OS
747         def_tristate m
748         prompt "Monitor OS statistics"
749         depends on APPLDATA_BASE
750         help
751           This provides OS related data to the Linux - VM Monitor Stream, like
752           CPU utilisation, etc.
753           Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM
754           APPLDATA monitor record, i.e. enables or disables monitoring this record
755           on the z/VM side.
756 
757           Default is disabled.
758           This can also be compiled as a module, which will be called
759           appldata_os.o.
760 
761 config APPLDATA_NET_SUM
762         def_tristate m
763         prompt "Monitor overall network statistics"
764         depends on APPLDATA_BASE && NET
765         help
766           This provides network related data to the Linux - VM Monitor Stream,
767           currently there is only a total sum of network I/O statistics, no
768           per-interface data.
769           Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM
770           APPLDATA monitor record, i.e. enables or disables monitoring this record
771           on the z/VM side.
772 
773           Default is disabled.
774           This can also be compiled as a module, which will be called
775           appldata_net_sum.o.
776 
777 config S390_HYPFS_FS
778         def_bool y
779         prompt "s390 hypervisor file system support"
780         select SYS_HYPERVISOR
781         help
782           This is a virtual file system intended to provide accounting
783           information in an s390 hypervisor environment.
784 
785 source "arch/s390/kvm/Kconfig"
786 
787 config S390_GUEST
788         def_bool y
789         prompt "s390 support for virtio devices"
790         depends on 64BIT
791         select TTY
792         select VIRTUALIZATION
793         select VIRTIO
794         select VIRTIO_CONSOLE
795         help
796           Enabling this option adds support for virtio based paravirtual device
797           drivers on s390.
798 
799           Select this option if you want to run the kernel as a guest under
800           the KVM hypervisor.
801 
802 endmenu

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us