Commit | Line | Data |
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1da177e4 LT |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | ||
dbd70fb4 HC |
6 | config SCHED_MC |
7 | def_bool y | |
8 | depends on SMP | |
9 | ||
1da177e4 | 10 | config MMU |
61d48c2c | 11 | def_bool y |
1da177e4 | 12 | |
66701b14 | 13 | config ZONE_DMA |
118bcd31 HC |
14 | def_bool y |
15 | depends on 64BIT | |
66701b14 | 16 | |
2b105ff9 | 17 | config LOCKDEP_SUPPORT |
61d48c2c | 18 | def_bool y |
2b105ff9 | 19 | |
5bdc9b44 | 20 | config STACKTRACE_SUPPORT |
61d48c2c | 21 | def_bool y |
5bdc9b44 | 22 | |
a3afe70b HC |
23 | config HAVE_LATENCYTOP_SUPPORT |
24 | def_bool y | |
25 | ||
1da177e4 LT |
26 | config RWSEM_GENERIC_SPINLOCK |
27 | bool | |
28 | ||
29 | config RWSEM_XCHGADD_ALGORITHM | |
61d48c2c | 30 | def_bool y |
1da177e4 | 31 | |
f0d1b0b3 DH |
32 | config ARCH_HAS_ILOG2_U32 |
33 | bool | |
34 | default n | |
35 | ||
36 | config ARCH_HAS_ILOG2_U64 | |
37 | bool | |
38 | default n | |
39 | ||
7e33db4e | 40 | config GENERIC_HWEIGHT |
61d48c2c | 41 | def_bool y |
7e33db4e | 42 | |
dc64bef5 MS |
43 | config GENERIC_TIME |
44 | def_bool y | |
45 | ||
b020632e MS |
46 | config GENERIC_TIME_VSYSCALL |
47 | def_bool y | |
48 | ||
5a62b192 HC |
49 | config GENERIC_CLOCKEVENTS |
50 | def_bool y | |
51 | ||
c0007f1a HC |
52 | config GENERIC_BUG |
53 | bool | |
54 | depends on BUG | |
55 | default y | |
56 | ||
52499f40 HC |
57 | config GENERIC_BUG_RELATIVE_POINTERS |
58 | def_bool y | |
59 | ||
23db764d | 60 | config NO_IOMEM |
5ea81769 AV |
61 | def_bool y |
62 | ||
411f0f3e HC |
63 | config NO_DMA |
64 | def_bool y | |
65 | ||
b6b40c53 MS |
66 | config GENERIC_LOCKBREAK |
67 | bool | |
68 | default y | |
69 | depends on SMP && PREEMPT | |
70 | ||
402b0862 CO |
71 | config PGSTE |
72 | bool | |
73 | default y if KVM | |
74 | ||
c185b783 MS |
75 | config VIRT_CPU_ACCOUNTING |
76 | def_bool y | |
77 | ||
6a11f75b AM |
78 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
79 | def_bool y | |
80 | ||
1da177e4 LT |
81 | mainmenu "Linux Kernel Configuration" |
82 | ||
347a8dc3 | 83 | config S390 |
61d48c2c | 84 | def_bool y |
ca9fc75a | 85 | select USE_GENERIC_SMP_HELPERS if SMP |
ed6bb619 | 86 | select HAVE_SYSCALL_WRAPPERS |
5d360a75 | 87 | select HAVE_FUNCTION_TRACER |
8b4488f8 | 88 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
dfd9f7ab | 89 | select HAVE_FTRACE_MCOUNT_RECORD |
66700001 | 90 | select HAVE_SYSCALL_TRACEPOINTS |
dfd9f7ab | 91 | select HAVE_DYNAMIC_FTRACE |
88dbd203 | 92 | select HAVE_FUNCTION_GRAPH_TRACER |
952974ac | 93 | select HAVE_REGS_AND_STACK_ACCESS_API |
36cd3c9f | 94 | select HAVE_DEFAULT_NO_SPIN_MUTEXES |
42d4b839 | 95 | select HAVE_OPROFILE |
3f550096 | 96 | select HAVE_KPROBES |
9edddaa2 | 97 | select HAVE_KRETPROBES |
77b455f1 | 98 | select HAVE_KVM if 64BIT |
753c4dd6 | 99 | select HAVE_ARCH_TRACEHOOK |
98a79d6a | 100 | select INIT_ALL_POSSIBLE |
cdd6c482 | 101 | select HAVE_PERF_EVENTS |
1844c9bc MS |
102 | select HAVE_KERNEL_GZIP |
103 | select HAVE_KERNEL_BZIP2 | |
104 | select HAVE_KERNEL_LZMA | |
6beb0009 TG |
105 | select ARCH_INLINE_SPIN_TRYLOCK |
106 | select ARCH_INLINE_SPIN_TRYLOCK_BH | |
107 | select ARCH_INLINE_SPIN_LOCK | |
108 | select ARCH_INLINE_SPIN_LOCK_BH | |
109 | select ARCH_INLINE_SPIN_LOCK_IRQ | |
110 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE | |
111 | select ARCH_INLINE_SPIN_UNLOCK | |
112 | select ARCH_INLINE_SPIN_UNLOCK_BH | |
113 | select ARCH_INLINE_SPIN_UNLOCK_IRQ | |
114 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE | |
115 | select ARCH_INLINE_READ_TRYLOCK | |
116 | select ARCH_INLINE_READ_LOCK | |
117 | select ARCH_INLINE_READ_LOCK_BH | |
118 | select ARCH_INLINE_READ_LOCK_IRQ | |
119 | select ARCH_INLINE_READ_LOCK_IRQSAVE | |
120 | select ARCH_INLINE_READ_UNLOCK | |
121 | select ARCH_INLINE_READ_UNLOCK_BH | |
122 | select ARCH_INLINE_READ_UNLOCK_IRQ | |
123 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE | |
124 | select ARCH_INLINE_WRITE_TRYLOCK | |
125 | select ARCH_INLINE_WRITE_LOCK | |
126 | select ARCH_INLINE_WRITE_LOCK_BH | |
127 | select ARCH_INLINE_WRITE_LOCK_IRQ | |
128 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE | |
129 | select ARCH_INLINE_WRITE_UNLOCK | |
130 | select ARCH_INLINE_WRITE_UNLOCK_BH | |
131 | select ARCH_INLINE_WRITE_UNLOCK_IRQ | |
132 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE | |
1da177e4 | 133 | |
fca3e357 MS |
134 | config SCHED_OMIT_FRAME_POINTER |
135 | bool | |
136 | default y | |
137 | ||
1da177e4 LT |
138 | source "init/Kconfig" |
139 | ||
dc52ddc0 MH |
140 | source "kernel/Kconfig.freezer" |
141 | ||
1da177e4 LT |
142 | menu "Base setup" |
143 | ||
144 | comment "Processor type and features" | |
145 | ||
5a62b192 HC |
146 | source "kernel/time/Kconfig" |
147 | ||
347a8dc3 | 148 | config 64BIT |
1da177e4 LT |
149 | bool "64 bit kernel" |
150 | help | |
151 | Select this option if you have a 64 bit IBM zSeries machine | |
152 | and want to use the 64 bit addressing mode. | |
153 | ||
d9f7a745 MS |
154 | config 32BIT |
155 | bool | |
156 | default y if !64BIT | |
157 | ||
07606309 MS |
158 | config KTIME_SCALAR |
159 | def_bool 32BIT | |
160 | ||
1da177e4 LT |
161 | config SMP |
162 | bool "Symmetric multi-processing support" | |
163 | ---help--- | |
164 | This enables support for systems with more than one CPU. If you have | |
165 | a system with only one CPU, like most personal computers, say N. If | |
166 | you have a system with more than one CPU, say Y. | |
167 | ||
168 | If you say N here, the kernel will run on single and multiprocessor | |
169 | machines, but will use only one CPU of a multiprocessor machine. If | |
170 | you say Y here, the kernel will run on many, but not all, | |
171 | singleprocessor machines. On a singleprocessor machine, the kernel | |
172 | will run faster if you say N here. | |
173 | ||
03502faa AB |
174 | See also the SMP-HOWTO available at |
175 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
176 | |
177 | Even if you don't know what to do here, say Y. | |
178 | ||
179 | config NR_CPUS | |
180 | int "Maximum number of CPUs (2-64)" | |
181 | range 2 64 | |
182 | depends on SMP | |
057c5cb3 HC |
183 | default "32" if !64BIT |
184 | default "64" if 64BIT | |
1da177e4 LT |
185 | help |
186 | This allows you to specify the maximum number of CPUs which this | |
187 | kernel will support. The maximum supported value is 64 and the | |
188 | minimum value which makes sense is 2. | |
189 | ||
190 | This is purely to save memory - each supported CPU adds | |
191 | approximately sixteen kilobytes to the kernel image. | |
192 | ||
193 | config HOTPLUG_CPU | |
194 | bool "Support for hot-pluggable CPUs" | |
195 | depends on SMP | |
196 | select HOTPLUG | |
197 | default n | |
198 | help | |
199 | Say Y here to be able to turn CPUs off and on. CPUs | |
200 | can be controlled through /sys/devices/system/cpu/cpu#. | |
201 | Say N if you want to disable CPU hotplug. | |
202 | ||
203 | config MATHEMU | |
204 | bool "IEEE FPU emulation" | |
205 | depends on MARCH_G5 | |
206 | help | |
207 | This option is required for IEEE compliant floating point arithmetic | |
208 | on older S/390 machines. Say Y unless you know your machine doesn't | |
209 | need this. | |
210 | ||
347a8dc3 | 211 | config COMPAT |
1da177e4 | 212 | bool "Kernel support for 31 bit emulation" |
347a8dc3 | 213 | depends on 64BIT |
63506c41 | 214 | select COMPAT_BINFMT_ELF |
1da177e4 LT |
215 | help |
216 | Select this option if you want to enable your system kernel to | |
217 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
218 | (and some other stuff like libraries and such) is needed for | |
219 | executing 31 bit applications. It is safe to say "Y". | |
220 | ||
1da177e4 LT |
221 | config SYSVIPC_COMPAT |
222 | bool | |
223 | depends on COMPAT && SYSVIPC | |
224 | default y | |
225 | ||
e65e1fc2 AV |
226 | config AUDIT_ARCH |
227 | bool | |
228 | default y | |
229 | ||
c1821c2e GS |
230 | config S390_EXEC_PROTECT |
231 | bool "Data execute protection" | |
c1821c2e GS |
232 | help |
233 | This option allows to enable a buffer overflow protection for user | |
234 | space programs and it also selects the addressing mode option above. | |
235 | The kernel parameter noexec=on will enable this feature and also | |
236 | switch the addressing modes, default is disabled. Enabling this (via | |
237 | kernel parameter) on machines earlier than IBM System z9-109 EC/BC | |
238 | will reduce system performance. | |
239 | ||
1da177e4 LT |
240 | comment "Code generation options" |
241 | ||
242 | choice | |
243 | prompt "Processor type" | |
244 | default MARCH_G5 | |
245 | ||
246 | config MARCH_G5 | |
247 | bool "S/390 model G5 and G6" | |
347a8dc3 | 248 | depends on !64BIT |
1da177e4 LT |
249 | help |
250 | Select this to build a 31 bit kernel that works | |
251 | on all S/390 and zSeries machines. | |
252 | ||
253 | config MARCH_Z900 | |
254 | bool "IBM eServer zSeries model z800 and z900" | |
255 | help | |
256 | Select this to optimize for zSeries machines. This | |
257 | will enable some optimizations that are not available | |
258 | on older 31 bit only CPUs. | |
259 | ||
260 | config MARCH_Z990 | |
261 | bool "IBM eServer zSeries model z890 and z990" | |
262 | help | |
263 | Select this enable optimizations for model z890/z990. | |
264 | This will be slightly faster but does not work on | |
265 | older machines such as the z900. | |
266 | ||
0efa4703 CB |
267 | config MARCH_Z9_109 |
268 | bool "IBM System z9" | |
269 | help | |
270 | Select this to enable optimizations for IBM System z9-109, IBM | |
271 | System z9 Enterprise Class (z9 EC), and IBM System z9 Business | |
272 | Class (z9 BC). The kernel will be slightly faster but will not | |
273 | work on older machines such as the z990, z890, z900, and z800. | |
274 | ||
e37f50e1 MS |
275 | config MARCH_Z10 |
276 | bool "IBM System z10" | |
277 | help | |
278 | Select this to enable optimizations for IBM System z10. The | |
279 | kernel will be slightly faster but will not work on older | |
280 | machines such as the z990, z890, z900, z800, z9-109, z9-ec | |
281 | and z9-bc. | |
282 | ||
1da177e4 LT |
283 | endchoice |
284 | ||
285 | config PACK_STACK | |
286 | bool "Pack kernel stack" | |
287 | help | |
288 | This option enables the compiler option -mkernel-backchain if it | |
289 | is available. If the option is available the compiler supports | |
290 | the new stack layout which dramatically reduces the minimum stack | |
291 | frame size. With an old compiler a non-leaf function needs a | |
292 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With | |
293 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit | |
294 | and 24 byte on 64 bit. | |
295 | ||
296 | Say Y if you are unsure. | |
297 | ||
298 | config SMALL_STACK | |
7f5a8ba6 HC |
299 | bool "Use 8kb for kernel stack instead of 16kb" |
300 | depends on PACK_STACK && 64BIT && !LOCKDEP | |
1da177e4 LT |
301 | help |
302 | If you say Y here and the compiler supports the -mkernel-backchain | |
7f5a8ba6 HC |
303 | option the kernel will use a smaller kernel stack size. The reduced |
304 | size is 8kb instead of 16kb. This allows to run more threads on a | |
305 | system and reduces the pressure on the memory management for higher | |
306 | order page allocations. | |
1da177e4 LT |
307 | |
308 | Say N if you are unsure. | |
309 | ||
1da177e4 LT |
310 | config CHECK_STACK |
311 | bool "Detect kernel stack overflow" | |
312 | help | |
313 | This option enables the compiler option -mstack-guard and | |
314 | -mstack-size if they are available. If the compiler supports them | |
315 | it will emit additional code to each function prolog to trigger | |
316 | an illegal operation if the kernel stack is about to overflow. | |
317 | ||
318 | Say N if you are unsure. | |
319 | ||
320 | config STACK_GUARD | |
321 | int "Size of the guard area (128-1024)" | |
322 | range 128 1024 | |
323 | depends on CHECK_STACK | |
324 | default "256" | |
325 | help | |
326 | This allows you to specify the size of the guard area at the lower | |
327 | end of the kernel stack. If the kernel stack points into the guard | |
328 | area on function entry an illegal operation is triggered. The size | |
329 | needs to be a power of 2. Please keep in mind that the size of an | |
330 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
331 | The minimum size for the stack guard should be 256 for 31 bit and | |
332 | 512 for 64 bit. | |
333 | ||
334 | config WARN_STACK | |
335 | bool "Emit compiler warnings for function with broken stack usage" | |
336 | help | |
337 | This option enables the compiler options -mwarn-framesize and | |
338 | -mwarn-dynamicstack. If the compiler supports these options it | |
339 | will generate warnings for function which either use alloca or | |
025dfdaf | 340 | create a stack frame bigger than CONFIG_WARN_STACK_SIZE. |
1da177e4 LT |
341 | |
342 | Say N if you are unsure. | |
343 | ||
344 | config WARN_STACK_SIZE | |
345 | int "Maximum frame size considered safe (128-2048)" | |
346 | range 128 2048 | |
347 | depends on WARN_STACK | |
c5a37255 | 348 | default "2048" |
1da177e4 LT |
349 | help |
350 | This allows you to specify the maximum frame size a function may | |
351 | have without the compiler complaining about it. | |
352 | ||
39b742f9 HC |
353 | config ARCH_POPULATES_NODE_MAP |
354 | def_bool y | |
355 | ||
61d48c2c MS |
356 | comment "Kernel preemption" |
357 | ||
358 | source "kernel/Kconfig.preempt" | |
359 | ||
17f34580 HC |
360 | config ARCH_SPARSEMEM_ENABLE |
361 | def_bool y | |
362 | select SPARSEMEM_VMEMMAP_ENABLE | |
363 | select SPARSEMEM_VMEMMAP | |
148f1678 | 364 | select SPARSEMEM_STATIC if !64BIT |
17f34580 HC |
365 | |
366 | config ARCH_SPARSEMEM_DEFAULT | |
367 | def_bool y | |
368 | ||
97195d6b HJP |
369 | config ARCH_SELECT_MEMORY_MODEL |
370 | def_bool y | |
371 | ||
421c175c HC |
372 | config ARCH_ENABLE_MEMORY_HOTPLUG |
373 | def_bool y | |
374 | depends on SPARSEMEM | |
375 | ||
7e9238fb GS |
376 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
377 | def_bool y | |
378 | ||
155af2f9 HJP |
379 | config ARCH_HIBERNATION_POSSIBLE |
380 | def_bool y if 64BIT | |
381 | ||
3f22ab27 DH |
382 | source "mm/Kconfig" |
383 | ||
1da177e4 LT |
384 | comment "I/O subsystem configuration" |
385 | ||
1da177e4 LT |
386 | config QDIO |
387 | tristate "QDIO support" | |
388 | ---help--- | |
8129ee16 | 389 | This driver provides the Queued Direct I/O base support for |
efca13bc | 390 | IBM System z. |
1da177e4 LT |
391 | |
392 | To compile this driver as a module, choose M here: the | |
393 | module will be called qdio. | |
394 | ||
395 | If unsure, say Y. | |
396 | ||
9d92a7e1 CH |
397 | config CHSC_SCH |
398 | tristate "Support for CHSC subchannels" | |
399 | help | |
400 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
401 | is usually present on LPAR only. | |
402 | The driver creates a device /dev/chsc, which may be used to | |
403 | obtain I/O configuration information about the machine and | |
404 | to issue asynchronous chsc commands (DANGEROUS). | |
405 | You will usually only want to use this interface on a special | |
406 | LPAR designated for system management. | |
407 | ||
408 | To compile this driver as a module, choose M here: the | |
409 | module will be called chsc_sch. | |
410 | ||
411 | If unsure, say N. | |
412 | ||
1da177e4 LT |
413 | comment "Misc" |
414 | ||
1da177e4 LT |
415 | config IPL |
416 | bool "Builtin IPL record support" | |
417 | help | |
418 | If you want to use the produced kernel to IPL directly from a | |
419 | device, you have to merge a bootsector specific to the device | |
420 | into the first bytes of the kernel. You will have to select the | |
421 | IPL device. | |
422 | ||
423 | choice | |
424 | prompt "IPL method generated into head.S" | |
425 | depends on IPL | |
46e7951f | 426 | default IPL_VM |
1da177e4 LT |
427 | help |
428 | Select "tape" if you want to IPL the image from a Tape. | |
429 | ||
430 | Select "vm_reader" if you are running under VM/ESA and want | |
431 | to IPL the image from the emulated card reader. | |
432 | ||
433 | config IPL_TAPE | |
434 | bool "tape" | |
435 | ||
436 | config IPL_VM | |
437 | bool "vm_reader" | |
438 | ||
439 | endchoice | |
440 | ||
441 | source "fs/Kconfig.binfmt" | |
442 | ||
684de39b HC |
443 | config FORCE_MAX_ZONEORDER |
444 | int | |
445 | default "9" | |
446 | ||
1da177e4 LT |
447 | config PROCESS_DEBUG |
448 | bool "Show crashed user process info" | |
449 | help | |
450 | Say Y to print all process fault locations to the console. This is | |
451 | a debugging option; you probably do not want to set it unless you | |
452 | are an S390 port maintainer. | |
453 | ||
454 | config PFAULT | |
455 | bool "Pseudo page fault support" | |
456 | help | |
457 | Select this option, if you want to use PFAULT pseudo page fault | |
458 | handling under VM. If running native or in LPAR, this option | |
459 | has no effect. If your VM does not support PFAULT, PAGEEX | |
460 | pseudo page fault handling will be used. | |
461 | Note that VM 4.2 supports PFAULT but has a bug in its | |
462 | implementation that causes some problems. | |
463 | Everybody who wants to run Linux under VM != VM4.2 should select | |
464 | this option. | |
465 | ||
466 | config SHARED_KERNEL | |
467 | bool "VM shared kernel support" | |
468 | help | |
469 | Select this option, if you want to share the text segment of the | |
470 | Linux kernel between different VM guests. This reduces memory | |
471 | usage with lots of guests but greatly increases kernel size. | |
9c9c1761 HC |
472 | Also if a kernel was IPL'ed from a shared segment the kexec system |
473 | call will not work. | |
1da177e4 LT |
474 | You should only select this option if you know what you are |
475 | doing and want to exploit this feature. | |
476 | ||
477 | config CMM | |
478 | tristate "Cooperative memory management" | |
479 | help | |
480 | Select this option, if you want to enable the kernel interface | |
481 | to reduce the memory size of the system. This is accomplished | |
482 | by allocating pages of memory and put them "on hold". This only | |
483 | makes sense for a system running under VM where the unused pages | |
484 | will be reused by VM for other guest systems. The interface | |
485 | allows an external monitor to balance memory of many systems. | |
486 | Everybody who wants to run Linux under VM should select this | |
487 | option. | |
488 | ||
489 | config CMM_PROC | |
490 | bool "/proc interface to cooperative memory management" | |
491 | depends on CMM | |
492 | help | |
493 | Select this option to enable the /proc interface to the | |
494 | cooperative memory management. | |
495 | ||
496 | config CMM_IUCV | |
497 | bool "IUCV special message interface to cooperative memory management" | |
498 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) | |
499 | help | |
500 | Select this option to enable the special message interface to | |
501 | the cooperative memory management. | |
502 | ||
1da177e4 LT |
503 | config APPLDATA_BASE |
504 | bool "Linux - VM Monitor Stream, base infrastructure" | |
c185b783 | 505 | depends on PROC_FS |
1da177e4 LT |
506 | help |
507 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
508 | monitor records. The monitor records are updated at certain time | |
509 | intervals, once the timer is started. | |
510 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
511 | i.e. enables or disables monitoring on the Linux side. | |
512 | A custom interval value (in seconds) can be written to | |
513 | /proc/appldata/interval. | |
514 | ||
515 | Defaults are 60 seconds interval and timer off. | |
516 | The /proc entries can also be read from, showing the current settings. | |
517 | ||
518 | config APPLDATA_MEM | |
519 | tristate "Monitor memory management statistics" | |
62fb2ba3 | 520 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
521 | help |
522 | This provides memory management related data to the Linux - VM Monitor | |
523 | Stream, like paging/swapping rate, memory utilisation, etc. | |
524 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
525 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
526 | on the z/VM side. | |
527 | ||
528 | Default is disabled. | |
529 | The /proc entry can also be read from, showing the current settings. | |
530 | ||
531 | This can also be compiled as a module, which will be called | |
532 | appldata_mem.o. | |
533 | ||
534 | config APPLDATA_OS | |
535 | tristate "Monitor OS statistics" | |
536 | depends on APPLDATA_BASE | |
537 | help | |
538 | This provides OS related data to the Linux - VM Monitor Stream, like | |
539 | CPU utilisation, etc. | |
540 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM | |
541 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
542 | on the z/VM side. | |
543 | ||
544 | Default is disabled. | |
545 | This can also be compiled as a module, which will be called | |
546 | appldata_os.o. | |
547 | ||
548 | config APPLDATA_NET_SUM | |
549 | tristate "Monitor overall network statistics" | |
70193af9 | 550 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
551 | help |
552 | This provides network related data to the Linux - VM Monitor Stream, | |
553 | currently there is only a total sum of network I/O statistics, no | |
554 | per-interface data. | |
555 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM | |
556 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
557 | on the z/VM side. | |
558 | ||
559 | Default is disabled. | |
560 | This can also be compiled as a module, which will be called | |
561 | appldata_net_sum.o. | |
562 | ||
61d48c2c MS |
563 | source kernel/Kconfig.hz |
564 | ||
24bbb1fa MH |
565 | config S390_HYPFS_FS |
566 | bool "s390 hypervisor file system support" | |
567 | select SYS_HYPERVISOR | |
568 | default y | |
569 | help | |
570 | This is a virtual file system intended to provide accounting | |
571 | information in an s390 hypervisor environment. | |
572 | ||
cf13f0ea | 573 | config KEXEC |
07d43ce6 | 574 | bool "kexec system call" |
cf13f0ea HC |
575 | help |
576 | kexec is a system call that implements the ability to shutdown your | |
577 | current kernel, and to start another kernel. It is like a reboot | |
578 | but is independent of hardware/microcode support. | |
579 | ||
411ed322 | 580 | config ZFCPDUMP |
59f2e69d | 581 | bool "zfcpdump support" |
411ed322 MH |
582 | select SMP |
583 | default n | |
584 | help | |
585 | Select this option if you want to build an zfcpdump enabled kernel. | |
e403149c | 586 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
411ed322 | 587 | |
fa587743 | 588 | config S390_GUEST |
20766c08 | 589 | bool "s390 guest support for KVM (EXPERIMENTAL)" |
fa587743 CO |
590 | depends on 64BIT && EXPERIMENTAL |
591 | select VIRTIO | |
592 | select VIRTIO_RING | |
faeba830 | 593 | select VIRTIO_CONSOLE |
fa587743 | 594 | help |
20766c08 CB |
595 | Select this option if you want to run the kernel as a guest under |
596 | the KVM hypervisor. This will add detection for KVM as well as a | |
597 | virtio transport. If KVM is detected, the virtio console will be | |
598 | the default console. | |
bcf5cef7 HC |
599 | |
600 | config SECCOMP | |
601 | bool "Enable seccomp to safely compute untrusted bytecode" | |
602 | depends on PROC_FS | |
603 | default y | |
604 | help | |
605 | This kernel feature is useful for number crunching applications | |
606 | that may need to compute untrusted bytecode during their | |
607 | execution. By using pipes or other transports made available to | |
608 | the process as file descriptors supporting the read/write | |
609 | syscalls, it's possible to isolate those applications in | |
610 | their own address space using seccomp. Once seccomp is | |
611 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
612 | and the task is only allowed to execute a few safe syscalls | |
613 | defined by each seccomp mode. | |
614 | ||
615 | If unsure, say Y. | |
616 | ||
1da177e4 LT |
617 | endmenu |
618 | ||
155af2f9 HJP |
619 | menu "Power Management" |
620 | ||
621 | source "kernel/power/Kconfig" | |
622 | ||
623 | endmenu | |
624 | ||
d5950b43 SR |
625 | source "net/Kconfig" |
626 | ||
1da177e4 | 627 | config PCMCIA |
61d48c2c | 628 | def_bool n |
1da177e4 | 629 | |
61d48c2c MS |
630 | config CCW |
631 | def_bool y | |
1da177e4 | 632 | |
61d48c2c | 633 | source "drivers/Kconfig" |
1da177e4 LT |
634 | |
635 | source "fs/Kconfig" | |
636 | ||
1da177e4 LT |
637 | source "arch/s390/Kconfig.debug" |
638 | ||
639 | source "security/Kconfig" | |
640 | ||
641 | source "crypto/Kconfig" | |
642 | ||
643 | source "lib/Kconfig" | |
77b455f1 CB |
644 | |
645 | source "arch/s390/kvm/Kconfig" |