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