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Commit | Line | Data |
---|---|---|
dbd70fb4 HC |
1 | config SCHED_MC |
2 | def_bool y | |
3 | depends on SMP | |
4 | ||
1da177e4 | 5 | config MMU |
61d48c2c | 6 | def_bool y |
1da177e4 | 7 | |
66701b14 | 8 | config ZONE_DMA |
118bcd31 HC |
9 | def_bool y |
10 | depends on 64BIT | |
66701b14 | 11 | |
2b105ff9 | 12 | config LOCKDEP_SUPPORT |
61d48c2c | 13 | def_bool y |
2b105ff9 | 14 | |
5bdc9b44 | 15 | config STACKTRACE_SUPPORT |
61d48c2c | 16 | def_bool y |
5bdc9b44 | 17 | |
a3afe70b HC |
18 | config HAVE_LATENCYTOP_SUPPORT |
19 | def_bool y | |
20 | ||
1da177e4 LT |
21 | config RWSEM_GENERIC_SPINLOCK |
22 | bool | |
23 | ||
24 | config RWSEM_XCHGADD_ALGORITHM | |
61d48c2c | 25 | def_bool y |
1da177e4 | 26 | |
f0d1b0b3 DH |
27 | config ARCH_HAS_ILOG2_U32 |
28 | bool | |
29 | default n | |
30 | ||
31 | config ARCH_HAS_ILOG2_U64 | |
32 | bool | |
33 | default n | |
34 | ||
7e33db4e | 35 | config GENERIC_HWEIGHT |
61d48c2c | 36 | def_bool y |
7e33db4e | 37 | |
b020632e MS |
38 | config GENERIC_TIME_VSYSCALL |
39 | def_bool y | |
40 | ||
5a62b192 HC |
41 | config GENERIC_CLOCKEVENTS |
42 | def_bool y | |
43 | ||
c0007f1a HC |
44 | config GENERIC_BUG |
45 | bool | |
46 | depends on BUG | |
47 | default y | |
48 | ||
52499f40 HC |
49 | config GENERIC_BUG_RELATIVE_POINTERS |
50 | def_bool y | |
51 | ||
23db764d | 52 | config NO_IOMEM |
5ea81769 AV |
53 | def_bool y |
54 | ||
411f0f3e HC |
55 | config NO_DMA |
56 | def_bool y | |
57 | ||
eca577ef FT |
58 | config ARCH_DMA_ADDR_T_64BIT |
59 | def_bool 64BIT | |
60 | ||
b6b40c53 MS |
61 | config GENERIC_LOCKBREAK |
62 | bool | |
63 | default y | |
64 | depends on SMP && PREEMPT | |
65 | ||
402b0862 CO |
66 | config PGSTE |
67 | bool | |
68 | default y if KVM | |
69 | ||
c185b783 MS |
70 | config VIRT_CPU_ACCOUNTING |
71 | def_bool y | |
72 | ||
6a11f75b AM |
73 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
74 | def_bool y | |
75 | ||
347a8dc3 | 76 | config S390 |
61d48c2c | 77 | def_bool y |
ca9fc75a | 78 | select USE_GENERIC_SMP_HELPERS if SMP |
ed6bb619 | 79 | select HAVE_SYSCALL_WRAPPERS |
5d360a75 | 80 | select HAVE_FUNCTION_TRACER |
8b4488f8 | 81 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
dfd9f7ab | 82 | select HAVE_FTRACE_MCOUNT_RECORD |
b25c477b | 83 | select HAVE_C_RECORDMCOUNT |
66700001 | 84 | select HAVE_SYSCALL_TRACEPOINTS |
dfd9f7ab | 85 | select HAVE_DYNAMIC_FTRACE |
88dbd203 | 86 | select HAVE_FUNCTION_GRAPH_TRACER |
952974ac | 87 | select HAVE_REGS_AND_STACK_ACCESS_API |
36cd3c9f | 88 | select HAVE_DEFAULT_NO_SPIN_MUTEXES |
42d4b839 | 89 | select HAVE_OPROFILE |
3f550096 | 90 | select HAVE_KPROBES |
9edddaa2 | 91 | select HAVE_KRETPROBES |
77b455f1 | 92 | select HAVE_KVM if 64BIT |
753c4dd6 | 93 | select HAVE_ARCH_TRACEHOOK |
98a79d6a | 94 | select INIT_ALL_POSSIBLE |
e360adbe | 95 | select HAVE_IRQ_WORK |
cdd6c482 | 96 | select HAVE_PERF_EVENTS |
1844c9bc MS |
97 | select HAVE_KERNEL_GZIP |
98 | select HAVE_KERNEL_BZIP2 | |
99 | select HAVE_KERNEL_LZMA | |
cdf56649 | 100 | select HAVE_KERNEL_LZO |
80217147 | 101 | select HAVE_GET_USER_PAGES_FAST |
335d7afb | 102 | select HAVE_ARCH_MUTEX_CPU_RELAX |
6beb0009 TG |
103 | select ARCH_INLINE_SPIN_TRYLOCK |
104 | select ARCH_INLINE_SPIN_TRYLOCK_BH | |
105 | select ARCH_INLINE_SPIN_LOCK | |
106 | select ARCH_INLINE_SPIN_LOCK_BH | |
107 | select ARCH_INLINE_SPIN_LOCK_IRQ | |
108 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE | |
109 | select ARCH_INLINE_SPIN_UNLOCK | |
110 | select ARCH_INLINE_SPIN_UNLOCK_BH | |
111 | select ARCH_INLINE_SPIN_UNLOCK_IRQ | |
112 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE | |
113 | select ARCH_INLINE_READ_TRYLOCK | |
114 | select ARCH_INLINE_READ_LOCK | |
115 | select ARCH_INLINE_READ_LOCK_BH | |
116 | select ARCH_INLINE_READ_LOCK_IRQ | |
117 | select ARCH_INLINE_READ_LOCK_IRQSAVE | |
118 | select ARCH_INLINE_READ_UNLOCK | |
119 | select ARCH_INLINE_READ_UNLOCK_BH | |
120 | select ARCH_INLINE_READ_UNLOCK_IRQ | |
121 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE | |
122 | select ARCH_INLINE_WRITE_TRYLOCK | |
123 | select ARCH_INLINE_WRITE_LOCK | |
124 | select ARCH_INLINE_WRITE_LOCK_BH | |
125 | select ARCH_INLINE_WRITE_LOCK_IRQ | |
126 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE | |
127 | select ARCH_INLINE_WRITE_UNLOCK | |
128 | select ARCH_INLINE_WRITE_UNLOCK_BH | |
129 | select ARCH_INLINE_WRITE_UNLOCK_IRQ | |
130 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE | |
1da177e4 | 131 | |
fca3e357 MS |
132 | config SCHED_OMIT_FRAME_POINTER |
133 | bool | |
134 | default y | |
135 | ||
1da177e4 LT |
136 | source "init/Kconfig" |
137 | ||
dc52ddc0 MH |
138 | source "kernel/Kconfig.freezer" |
139 | ||
1da177e4 LT |
140 | menu "Base setup" |
141 | ||
142 | comment "Processor type and features" | |
143 | ||
5a62b192 HC |
144 | source "kernel/time/Kconfig" |
145 | ||
347a8dc3 | 146 | config 64BIT |
1da177e4 LT |
147 | bool "64 bit kernel" |
148 | help | |
db81a23d | 149 | Select this option if you have an IBM z/Architecture machine |
1da177e4 LT |
150 | and want to use the 64 bit addressing mode. |
151 | ||
d9f7a745 MS |
152 | config 32BIT |
153 | bool | |
154 | default y if !64BIT | |
155 | ||
07606309 MS |
156 | config KTIME_SCALAR |
157 | def_bool 32BIT | |
158 | ||
1da177e4 LT |
159 | config SMP |
160 | bool "Symmetric multi-processing support" | |
161 | ---help--- | |
162 | This enables support for systems with more than one CPU. If you have | |
163 | a system with only one CPU, like most personal computers, say N. If | |
164 | you have a system with more than one CPU, say Y. | |
165 | ||
166 | If you say N here, the kernel will run on single and multiprocessor | |
167 | machines, but will use only one CPU of a multiprocessor machine. If | |
168 | you say Y here, the kernel will run on many, but not all, | |
169 | singleprocessor machines. On a singleprocessor machine, the kernel | |
170 | will run faster if you say N here. | |
171 | ||
03502faa AB |
172 | See also the SMP-HOWTO available at |
173 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
174 | |
175 | Even if you don't know what to do here, say Y. | |
176 | ||
177 | config NR_CPUS | |
178 | int "Maximum number of CPUs (2-64)" | |
179 | range 2 64 | |
180 | depends on SMP | |
057c5cb3 HC |
181 | default "32" if !64BIT |
182 | default "64" if 64BIT | |
1da177e4 LT |
183 | help |
184 | This allows you to specify the maximum number of CPUs which this | |
185 | kernel will support. The maximum supported value is 64 and the | |
186 | minimum value which makes sense is 2. | |
187 | ||
188 | This is purely to save memory - each supported CPU adds | |
189 | approximately sixteen kilobytes to the kernel image. | |
190 | ||
191 | config HOTPLUG_CPU | |
192 | bool "Support for hot-pluggable CPUs" | |
193 | depends on SMP | |
194 | select HOTPLUG | |
195 | default n | |
196 | help | |
197 | Say Y here to be able to turn CPUs off and on. CPUs | |
198 | can be controlled through /sys/devices/system/cpu/cpu#. | |
199 | Say N if you want to disable CPU hotplug. | |
200 | ||
8d11e021 HC |
201 | config SCHED_MC |
202 | def_bool y | |
203 | prompt "Multi-core scheduler support" | |
204 | depends on SMP | |
205 | help | |
206 | Multi-core scheduler support improves the CPU scheduler's decision | |
207 | making when dealing with multi-core CPU chips at a cost of slightly | |
208 | increased overhead in some places. | |
209 | ||
4cb14bc8 HC |
210 | config SCHED_BOOK |
211 | bool "Book scheduler support" | |
8d11e021 | 212 | depends on SMP && SCHED_MC |
4cb14bc8 HC |
213 | help |
214 | Book scheduler support improves the CPU scheduler's decision making | |
215 | when dealing with machines that have several books. | |
216 | ||
1da177e4 LT |
217 | config MATHEMU |
218 | bool "IEEE FPU emulation" | |
219 | depends on MARCH_G5 | |
220 | help | |
221 | This option is required for IEEE compliant floating point arithmetic | |
db81a23d | 222 | on older ESA/390 machines. Say Y unless you know your machine doesn't |
1da177e4 LT |
223 | need this. |
224 | ||
347a8dc3 | 225 | config COMPAT |
1da177e4 | 226 | bool "Kernel support for 31 bit emulation" |
347a8dc3 | 227 | depends on 64BIT |
63506c41 | 228 | select COMPAT_BINFMT_ELF |
1da177e4 LT |
229 | help |
230 | Select this option if you want to enable your system kernel to | |
231 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
232 | (and some other stuff like libraries and such) is needed for | |
233 | executing 31 bit applications. It is safe to say "Y". | |
234 | ||
1da177e4 LT |
235 | config SYSVIPC_COMPAT |
236 | bool | |
237 | depends on COMPAT && SYSVIPC | |
238 | default y | |
239 | ||
e65e1fc2 AV |
240 | config AUDIT_ARCH |
241 | bool | |
242 | default y | |
243 | ||
c1821c2e GS |
244 | config S390_EXEC_PROTECT |
245 | bool "Data execute protection" | |
c1821c2e GS |
246 | help |
247 | This option allows to enable a buffer overflow protection for user | |
248 | space programs and it also selects the addressing mode option above. | |
249 | The kernel parameter noexec=on will enable this feature and also | |
250 | switch the addressing modes, default is disabled. Enabling this (via | |
db81a23d HC |
251 | kernel parameter) on machines earlier than IBM System z9 this will |
252 | reduce system performance. | |
c1821c2e | 253 | |
1da177e4 LT |
254 | comment "Code generation options" |
255 | ||
256 | choice | |
257 | prompt "Processor type" | |
258 | default MARCH_G5 | |
259 | ||
260 | config MARCH_G5 | |
db81a23d | 261 | bool "System/390 model G5 and G6" |
347a8dc3 | 262 | depends on !64BIT |
1da177e4 LT |
263 | help |
264 | Select this to build a 31 bit kernel that works | |
db81a23d | 265 | on all ESA/390 and z/Architecture machines. |
1da177e4 LT |
266 | |
267 | config MARCH_Z900 | |
db81a23d | 268 | bool "IBM zSeries model z800 and z900" |
1da177e4 | 269 | help |
db81a23d HC |
270 | Select this to enable optimizations for model z800/z900 (2064 and |
271 | 2066 series). This will enable some optimizations that are not | |
272 | available on older ESA/390 (31 Bit) only CPUs. | |
1da177e4 LT |
273 | |
274 | config MARCH_Z990 | |
db81a23d | 275 | bool "IBM zSeries model z890 and z990" |
1da177e4 | 276 | help |
db81a23d HC |
277 | Select this to enable optimizations for model z890/z990 (2084 and |
278 | 2086 series). The kernel will be slightly faster but will not work | |
279 | on older machines. | |
1da177e4 | 280 | |
0efa4703 CB |
281 | config MARCH_Z9_109 |
282 | bool "IBM System z9" | |
283 | help | |
db81a23d HC |
284 | Select this to enable optimizations for IBM System z9 (2094 and |
285 | 2096 series). The kernel will be slightly faster but will not work | |
286 | on older machines. | |
0efa4703 | 287 | |
e37f50e1 MS |
288 | config MARCH_Z10 |
289 | bool "IBM System z10" | |
290 | help | |
db81a23d HC |
291 | Select this to enable optimizations for IBM System z10 (2097 and |
292 | 2098 series). The kernel will be slightly faster but will not work | |
293 | on older machines. | |
e37f50e1 | 294 | |
f861e405 HC |
295 | config MARCH_Z196 |
296 | bool "IBM zEnterprise 196" | |
297 | help | |
db81a23d HC |
298 | Select this to enable optimizations for IBM zEnterprise 196 |
299 | (2817 series). The kernel will be slightly faster but will not work | |
300 | on older machines. | |
f861e405 | 301 | |
1da177e4 LT |
302 | endchoice |
303 | ||
304 | config PACK_STACK | |
305 | bool "Pack kernel stack" | |
306 | help | |
307 | This option enables the compiler option -mkernel-backchain if it | |
308 | is available. If the option is available the compiler supports | |
309 | the new stack layout which dramatically reduces the minimum stack | |
310 | frame size. With an old compiler a non-leaf function needs a | |
311 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With | |
312 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit | |
313 | and 24 byte on 64 bit. | |
314 | ||
315 | Say Y if you are unsure. | |
316 | ||
317 | config SMALL_STACK | |
7f5a8ba6 HC |
318 | bool "Use 8kb for kernel stack instead of 16kb" |
319 | depends on PACK_STACK && 64BIT && !LOCKDEP | |
1da177e4 LT |
320 | help |
321 | If you say Y here and the compiler supports the -mkernel-backchain | |
7f5a8ba6 HC |
322 | option the kernel will use a smaller kernel stack size. The reduced |
323 | size is 8kb instead of 16kb. This allows to run more threads on a | |
324 | system and reduces the pressure on the memory management for higher | |
325 | order page allocations. | |
1da177e4 LT |
326 | |
327 | Say N if you are unsure. | |
328 | ||
1da177e4 LT |
329 | config CHECK_STACK |
330 | bool "Detect kernel stack overflow" | |
331 | help | |
332 | This option enables the compiler option -mstack-guard and | |
333 | -mstack-size if they are available. If the compiler supports them | |
334 | it will emit additional code to each function prolog to trigger | |
335 | an illegal operation if the kernel stack is about to overflow. | |
336 | ||
337 | Say N if you are unsure. | |
338 | ||
339 | config STACK_GUARD | |
340 | int "Size of the guard area (128-1024)" | |
341 | range 128 1024 | |
342 | depends on CHECK_STACK | |
343 | default "256" | |
344 | help | |
345 | This allows you to specify the size of the guard area at the lower | |
346 | end of the kernel stack. If the kernel stack points into the guard | |
347 | area on function entry an illegal operation is triggered. The size | |
348 | needs to be a power of 2. Please keep in mind that the size of an | |
349 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
350 | The minimum size for the stack guard should be 256 for 31 bit and | |
351 | 512 for 64 bit. | |
352 | ||
353 | config WARN_STACK | |
354 | bool "Emit compiler warnings for function with broken stack usage" | |
355 | help | |
356 | This option enables the compiler options -mwarn-framesize and | |
357 | -mwarn-dynamicstack. If the compiler supports these options it | |
358 | will generate warnings for function which either use alloca or | |
025dfdaf | 359 | create a stack frame bigger than CONFIG_WARN_STACK_SIZE. |
1da177e4 LT |
360 | |
361 | Say N if you are unsure. | |
362 | ||
363 | config WARN_STACK_SIZE | |
364 | int "Maximum frame size considered safe (128-2048)" | |
365 | range 128 2048 | |
366 | depends on WARN_STACK | |
c5a37255 | 367 | default "2048" |
1da177e4 LT |
368 | help |
369 | This allows you to specify the maximum frame size a function may | |
370 | have without the compiler complaining about it. | |
371 | ||
39b742f9 HC |
372 | config ARCH_POPULATES_NODE_MAP |
373 | def_bool y | |
374 | ||
61d48c2c MS |
375 | comment "Kernel preemption" |
376 | ||
377 | source "kernel/Kconfig.preempt" | |
378 | ||
17f34580 HC |
379 | config ARCH_SPARSEMEM_ENABLE |
380 | def_bool y | |
381 | select SPARSEMEM_VMEMMAP_ENABLE | |
382 | select SPARSEMEM_VMEMMAP | |
148f1678 | 383 | select SPARSEMEM_STATIC if !64BIT |
17f34580 HC |
384 | |
385 | config ARCH_SPARSEMEM_DEFAULT | |
386 | def_bool y | |
387 | ||
97195d6b HJP |
388 | config ARCH_SELECT_MEMORY_MODEL |
389 | def_bool y | |
390 | ||
421c175c HC |
391 | config ARCH_ENABLE_MEMORY_HOTPLUG |
392 | def_bool y | |
393 | depends on SPARSEMEM | |
394 | ||
7e9238fb GS |
395 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
396 | def_bool y | |
397 | ||
155af2f9 HJP |
398 | config ARCH_HIBERNATION_POSSIBLE |
399 | def_bool y if 64BIT | |
400 | ||
3f22ab27 DH |
401 | source "mm/Kconfig" |
402 | ||
1da177e4 LT |
403 | comment "I/O subsystem configuration" |
404 | ||
1da177e4 LT |
405 | config QDIO |
406 | tristate "QDIO support" | |
407 | ---help--- | |
8129ee16 | 408 | This driver provides the Queued Direct I/O base support for |
efca13bc | 409 | IBM System z. |
1da177e4 LT |
410 | |
411 | To compile this driver as a module, choose M here: the | |
412 | module will be called qdio. | |
413 | ||
414 | If unsure, say Y. | |
415 | ||
9d92a7e1 CH |
416 | config CHSC_SCH |
417 | tristate "Support for CHSC subchannels" | |
418 | help | |
419 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
420 | is usually present on LPAR only. | |
421 | The driver creates a device /dev/chsc, which may be used to | |
422 | obtain I/O configuration information about the machine and | |
423 | to issue asynchronous chsc commands (DANGEROUS). | |
424 | You will usually only want to use this interface on a special | |
425 | LPAR designated for system management. | |
426 | ||
427 | To compile this driver as a module, choose M here: the | |
428 | module will be called chsc_sch. | |
429 | ||
430 | If unsure, say N. | |
431 | ||
1da177e4 LT |
432 | comment "Misc" |
433 | ||
1da177e4 LT |
434 | config IPL |
435 | bool "Builtin IPL record support" | |
436 | help | |
437 | If you want to use the produced kernel to IPL directly from a | |
438 | device, you have to merge a bootsector specific to the device | |
439 | into the first bytes of the kernel. You will have to select the | |
440 | IPL device. | |
441 | ||
442 | choice | |
443 | prompt "IPL method generated into head.S" | |
444 | depends on IPL | |
46e7951f | 445 | default IPL_VM |
1da177e4 LT |
446 | help |
447 | Select "tape" if you want to IPL the image from a Tape. | |
448 | ||
449 | Select "vm_reader" if you are running under VM/ESA and want | |
450 | to IPL the image from the emulated card reader. | |
451 | ||
452 | config IPL_TAPE | |
453 | bool "tape" | |
454 | ||
455 | config IPL_VM | |
456 | bool "vm_reader" | |
457 | ||
458 | endchoice | |
459 | ||
460 | source "fs/Kconfig.binfmt" | |
461 | ||
684de39b HC |
462 | config FORCE_MAX_ZONEORDER |
463 | int | |
464 | default "9" | |
465 | ||
1da177e4 LT |
466 | config PFAULT |
467 | bool "Pseudo page fault support" | |
468 | help | |
469 | Select this option, if you want to use PFAULT pseudo page fault | |
470 | handling under VM. If running native or in LPAR, this option | |
471 | has no effect. If your VM does not support PFAULT, PAGEEX | |
472 | pseudo page fault handling will be used. | |
473 | Note that VM 4.2 supports PFAULT but has a bug in its | |
474 | implementation that causes some problems. | |
475 | Everybody who wants to run Linux under VM != VM4.2 should select | |
476 | this option. | |
477 | ||
478 | config SHARED_KERNEL | |
479 | bool "VM shared kernel support" | |
480 | help | |
481 | Select this option, if you want to share the text segment of the | |
482 | Linux kernel between different VM guests. This reduces memory | |
483 | usage with lots of guests but greatly increases kernel size. | |
9c9c1761 HC |
484 | Also if a kernel was IPL'ed from a shared segment the kexec system |
485 | call will not work. | |
1da177e4 LT |
486 | You should only select this option if you know what you are |
487 | doing and want to exploit this feature. | |
488 | ||
489 | config CMM | |
490 | tristate "Cooperative memory management" | |
491 | help | |
492 | Select this option, if you want to enable the kernel interface | |
493 | to reduce the memory size of the system. This is accomplished | |
494 | by allocating pages of memory and put them "on hold". This only | |
495 | makes sense for a system running under VM where the unused pages | |
496 | will be reused by VM for other guest systems. The interface | |
497 | allows an external monitor to balance memory of many systems. | |
498 | Everybody who wants to run Linux under VM should select this | |
499 | option. | |
500 | ||
1da177e4 LT |
501 | config CMM_IUCV |
502 | bool "IUCV special message interface to cooperative memory management" | |
503 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) | |
504 | help | |
505 | Select this option to enable the special message interface to | |
506 | the cooperative memory management. | |
507 | ||
1da177e4 LT |
508 | config APPLDATA_BASE |
509 | bool "Linux - VM Monitor Stream, base infrastructure" | |
c185b783 | 510 | depends on PROC_FS |
1da177e4 LT |
511 | help |
512 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
513 | monitor records. The monitor records are updated at certain time | |
514 | intervals, once the timer is started. | |
515 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
516 | i.e. enables or disables monitoring on the Linux side. | |
517 | A custom interval value (in seconds) can be written to | |
518 | /proc/appldata/interval. | |
519 | ||
520 | Defaults are 60 seconds interval and timer off. | |
521 | The /proc entries can also be read from, showing the current settings. | |
522 | ||
523 | config APPLDATA_MEM | |
524 | tristate "Monitor memory management statistics" | |
62fb2ba3 | 525 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
526 | help |
527 | This provides memory management related data to the Linux - VM Monitor | |
528 | Stream, like paging/swapping rate, memory utilisation, etc. | |
529 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
530 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
531 | on the z/VM side. | |
532 | ||
533 | Default is disabled. | |
534 | The /proc entry can also be read from, showing the current settings. | |
535 | ||
536 | This can also be compiled as a module, which will be called | |
537 | appldata_mem.o. | |
538 | ||
539 | config APPLDATA_OS | |
540 | tristate "Monitor OS statistics" | |
541 | depends on APPLDATA_BASE | |
542 | help | |
543 | This provides OS related data to the Linux - VM Monitor Stream, like | |
544 | CPU utilisation, etc. | |
545 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM | |
546 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
547 | on the z/VM side. | |
548 | ||
549 | Default is disabled. | |
550 | This can also be compiled as a module, which will be called | |
551 | appldata_os.o. | |
552 | ||
553 | config APPLDATA_NET_SUM | |
554 | tristate "Monitor overall network statistics" | |
70193af9 | 555 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
556 | help |
557 | This provides network related data to the Linux - VM Monitor Stream, | |
558 | currently there is only a total sum of network I/O statistics, no | |
559 | per-interface data. | |
560 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM | |
561 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
562 | on the z/VM side. | |
563 | ||
564 | Default is disabled. | |
565 | This can also be compiled as a module, which will be called | |
566 | appldata_net_sum.o. | |
567 | ||
61d48c2c MS |
568 | source kernel/Kconfig.hz |
569 | ||
24bbb1fa MH |
570 | config S390_HYPFS_FS |
571 | bool "s390 hypervisor file system support" | |
572 | select SYS_HYPERVISOR | |
573 | default y | |
574 | help | |
575 | This is a virtual file system intended to provide accounting | |
576 | information in an s390 hypervisor environment. | |
577 | ||
cf13f0ea | 578 | config KEXEC |
07d43ce6 | 579 | bool "kexec system call" |
cf13f0ea HC |
580 | help |
581 | kexec is a system call that implements the ability to shutdown your | |
582 | current kernel, and to start another kernel. It is like a reboot | |
583 | but is independent of hardware/microcode support. | |
584 | ||
411ed322 | 585 | config ZFCPDUMP |
59f2e69d | 586 | bool "zfcpdump support" |
411ed322 MH |
587 | select SMP |
588 | default n | |
589 | help | |
590 | Select this option if you want to build an zfcpdump enabled kernel. | |
e403149c | 591 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
411ed322 | 592 | |
fa587743 | 593 | config S390_GUEST |
20766c08 | 594 | bool "s390 guest support for KVM (EXPERIMENTAL)" |
fa587743 CO |
595 | depends on 64BIT && EXPERIMENTAL |
596 | select VIRTIO | |
597 | select VIRTIO_RING | |
faeba830 | 598 | select VIRTIO_CONSOLE |
fa587743 | 599 | help |
20766c08 CB |
600 | Select this option if you want to run the kernel as a guest under |
601 | the KVM hypervisor. This will add detection for KVM as well as a | |
602 | virtio transport. If KVM is detected, the virtio console will be | |
603 | the default console. | |
bcf5cef7 HC |
604 | |
605 | config SECCOMP | |
606 | bool "Enable seccomp to safely compute untrusted bytecode" | |
607 | depends on PROC_FS | |
608 | default y | |
609 | help | |
610 | This kernel feature is useful for number crunching applications | |
611 | that may need to compute untrusted bytecode during their | |
612 | execution. By using pipes or other transports made available to | |
613 | the process as file descriptors supporting the read/write | |
614 | syscalls, it's possible to isolate those applications in | |
615 | their own address space using seccomp. Once seccomp is | |
616 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
617 | and the task is only allowed to execute a few safe syscalls | |
618 | defined by each seccomp mode. | |
619 | ||
620 | If unsure, say Y. | |
621 | ||
1da177e4 LT |
622 | endmenu |
623 | ||
155af2f9 HJP |
624 | menu "Power Management" |
625 | ||
626 | source "kernel/power/Kconfig" | |
627 | ||
628 | endmenu | |
629 | ||
d5950b43 SR |
630 | source "net/Kconfig" |
631 | ||
1da177e4 | 632 | config PCMCIA |
61d48c2c | 633 | def_bool n |
1da177e4 | 634 | |
61d48c2c MS |
635 | config CCW |
636 | def_bool y | |
1da177e4 | 637 | |
61d48c2c | 638 | source "drivers/Kconfig" |
1da177e4 LT |
639 | |
640 | source "fs/Kconfig" | |
641 | ||
1da177e4 LT |
642 | source "arch/s390/Kconfig.debug" |
643 | ||
644 | source "security/Kconfig" | |
645 | ||
646 | source "crypto/Kconfig" | |
647 | ||
648 | source "lib/Kconfig" | |
77b455f1 CB |
649 | |
650 | source "arch/s390/kvm/Kconfig" |