Commit | Line | Data |
---|---|---|
1da177e4 | 1 | config MMU |
61d48c2c | 2 | def_bool y |
1da177e4 | 3 | |
66701b14 | 4 | config ZONE_DMA |
6f9a3c33 | 5 | def_bool y if 64BIT |
66701b14 | 6 | |
2b105ff9 | 7 | config LOCKDEP_SUPPORT |
61d48c2c | 8 | def_bool y |
2b105ff9 | 9 | |
5bdc9b44 | 10 | config STACKTRACE_SUPPORT |
61d48c2c | 11 | def_bool y |
5bdc9b44 | 12 | |
a3afe70b HC |
13 | config HAVE_LATENCYTOP_SUPPORT |
14 | def_bool y | |
15 | ||
1da177e4 LT |
16 | config RWSEM_GENERIC_SPINLOCK |
17 | bool | |
18 | ||
19 | config RWSEM_XCHGADD_ALGORITHM | |
61d48c2c | 20 | def_bool y |
1da177e4 | 21 | |
f0d1b0b3 | 22 | config ARCH_HAS_ILOG2_U32 |
6f9a3c33 | 23 | def_bool n |
f0d1b0b3 DH |
24 | |
25 | config ARCH_HAS_ILOG2_U64 | |
6f9a3c33 | 26 | def_bool n |
f0d1b0b3 | 27 | |
7e33db4e | 28 | config GENERIC_HWEIGHT |
61d48c2c | 29 | def_bool y |
7e33db4e | 30 | |
b020632e MS |
31 | config GENERIC_TIME_VSYSCALL |
32 | def_bool y | |
33 | ||
5a62b192 HC |
34 | config GENERIC_CLOCKEVENTS |
35 | def_bool y | |
36 | ||
c0007f1a | 37 | config GENERIC_BUG |
6f9a3c33 | 38 | def_bool y if BUG |
c0007f1a | 39 | |
52499f40 HC |
40 | config GENERIC_BUG_RELATIVE_POINTERS |
41 | def_bool y | |
42 | ||
23db764d | 43 | config NO_IOMEM |
5ea81769 AV |
44 | def_bool y |
45 | ||
411f0f3e HC |
46 | config NO_DMA |
47 | def_bool y | |
48 | ||
eca577ef FT |
49 | config ARCH_DMA_ADDR_T_64BIT |
50 | def_bool 64BIT | |
51 | ||
b6b40c53 | 52 | config GENERIC_LOCKBREAK |
6f9a3c33 | 53 | def_bool y if SMP && PREEMPT |
b6b40c53 | 54 | |
402b0862 | 55 | config PGSTE |
6f9a3c33 | 56 | def_bool y if KVM |
402b0862 | 57 | |
c185b783 MS |
58 | config VIRT_CPU_ACCOUNTING |
59 | def_bool y | |
60 | ||
6a11f75b AM |
61 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
62 | def_bool y | |
63 | ||
347a8dc3 | 64 | config S390 |
61d48c2c | 65 | def_bool y |
ca9fc75a | 66 | select USE_GENERIC_SMP_HELPERS if SMP |
ed6bb619 | 67 | select HAVE_SYSCALL_WRAPPERS |
5d360a75 | 68 | select HAVE_FUNCTION_TRACER |
8b4488f8 | 69 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
dfd9f7ab | 70 | select HAVE_FTRACE_MCOUNT_RECORD |
b25c477b | 71 | select HAVE_C_RECORDMCOUNT |
66700001 | 72 | select HAVE_SYSCALL_TRACEPOINTS |
dfd9f7ab | 73 | select HAVE_DYNAMIC_FTRACE |
88dbd203 | 74 | select HAVE_FUNCTION_GRAPH_TRACER |
952974ac | 75 | select HAVE_REGS_AND_STACK_ACCESS_API |
42d4b839 | 76 | select HAVE_OPROFILE |
3f550096 | 77 | select HAVE_KPROBES |
9edddaa2 | 78 | select HAVE_KRETPROBES |
77b455f1 | 79 | select HAVE_KVM if 64BIT |
753c4dd6 | 80 | select HAVE_ARCH_TRACEHOOK |
98a79d6a | 81 | select INIT_ALL_POSSIBLE |
e360adbe | 82 | select HAVE_IRQ_WORK |
cdd6c482 | 83 | select HAVE_PERF_EVENTS |
1844c9bc MS |
84 | select HAVE_KERNEL_GZIP |
85 | select HAVE_KERNEL_BZIP2 | |
86 | select HAVE_KERNEL_LZMA | |
cdf56649 | 87 | select HAVE_KERNEL_LZO |
d7b081ac | 88 | select HAVE_KERNEL_XZ |
80217147 | 89 | select HAVE_GET_USER_PAGES_FAST |
34b133f8 | 90 | select HAVE_ARCH_MUTEX_CPU_RELAX |
6beb0009 TG |
91 | select ARCH_INLINE_SPIN_TRYLOCK |
92 | select ARCH_INLINE_SPIN_TRYLOCK_BH | |
93 | select ARCH_INLINE_SPIN_LOCK | |
94 | select ARCH_INLINE_SPIN_LOCK_BH | |
95 | select ARCH_INLINE_SPIN_LOCK_IRQ | |
96 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE | |
97 | select ARCH_INLINE_SPIN_UNLOCK | |
98 | select ARCH_INLINE_SPIN_UNLOCK_BH | |
99 | select ARCH_INLINE_SPIN_UNLOCK_IRQ | |
100 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE | |
101 | select ARCH_INLINE_READ_TRYLOCK | |
102 | select ARCH_INLINE_READ_LOCK | |
103 | select ARCH_INLINE_READ_LOCK_BH | |
104 | select ARCH_INLINE_READ_LOCK_IRQ | |
105 | select ARCH_INLINE_READ_LOCK_IRQSAVE | |
106 | select ARCH_INLINE_READ_UNLOCK | |
107 | select ARCH_INLINE_READ_UNLOCK_BH | |
108 | select ARCH_INLINE_READ_UNLOCK_IRQ | |
109 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE | |
110 | select ARCH_INLINE_WRITE_TRYLOCK | |
111 | select ARCH_INLINE_WRITE_LOCK | |
112 | select ARCH_INLINE_WRITE_LOCK_BH | |
113 | select ARCH_INLINE_WRITE_LOCK_IRQ | |
114 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE | |
115 | select ARCH_INLINE_WRITE_UNLOCK | |
116 | select ARCH_INLINE_WRITE_UNLOCK_BH | |
117 | select ARCH_INLINE_WRITE_UNLOCK_IRQ | |
118 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE | |
1da177e4 | 119 | |
fca3e357 | 120 | config SCHED_OMIT_FRAME_POINTER |
6f9a3c33 | 121 | def_bool y |
fca3e357 | 122 | |
1da177e4 LT |
123 | source "init/Kconfig" |
124 | ||
dc52ddc0 MH |
125 | source "kernel/Kconfig.freezer" |
126 | ||
1da177e4 LT |
127 | menu "Base setup" |
128 | ||
129 | comment "Processor type and features" | |
130 | ||
5a62b192 HC |
131 | source "kernel/time/Kconfig" |
132 | ||
347a8dc3 | 133 | config 64BIT |
6f9a3c33 MS |
134 | def_bool y |
135 | prompt "64 bit kernel" | |
1da177e4 | 136 | help |
db81a23d | 137 | Select this option if you have an IBM z/Architecture machine |
1da177e4 LT |
138 | and want to use the 64 bit addressing mode. |
139 | ||
d9f7a745 | 140 | config 32BIT |
6f9a3c33 | 141 | def_bool y if !64BIT |
d9f7a745 | 142 | |
07606309 MS |
143 | config KTIME_SCALAR |
144 | def_bool 32BIT | |
145 | ||
1da177e4 | 146 | config SMP |
6f9a3c33 MS |
147 | def_bool y |
148 | prompt "Symmetric multi-processing support" | |
1da177e4 LT |
149 | ---help--- |
150 | This enables support for systems with more than one CPU. If you have | |
151 | a system with only one CPU, like most personal computers, say N. If | |
152 | you have a system with more than one CPU, say Y. | |
153 | ||
154 | If you say N here, the kernel will run on single and multiprocessor | |
155 | machines, but will use only one CPU of a multiprocessor machine. If | |
156 | you say Y here, the kernel will run on many, but not all, | |
157 | singleprocessor machines. On a singleprocessor machine, the kernel | |
158 | will run faster if you say N here. | |
159 | ||
03502faa AB |
160 | See also the SMP-HOWTO available at |
161 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
162 | |
163 | Even if you don't know what to do here, say Y. | |
164 | ||
165 | config NR_CPUS | |
166 | int "Maximum number of CPUs (2-64)" | |
167 | range 2 64 | |
168 | depends on SMP | |
057c5cb3 HC |
169 | default "32" if !64BIT |
170 | default "64" if 64BIT | |
1da177e4 LT |
171 | help |
172 | This allows you to specify the maximum number of CPUs which this | |
173 | kernel will support. The maximum supported value is 64 and the | |
174 | minimum value which makes sense is 2. | |
175 | ||
176 | This is purely to save memory - each supported CPU adds | |
177 | approximately sixteen kilobytes to the kernel image. | |
178 | ||
179 | config HOTPLUG_CPU | |
6f9a3c33 MS |
180 | def_bool y |
181 | prompt "Support for hot-pluggable CPUs" | |
1da177e4 LT |
182 | depends on SMP |
183 | select HOTPLUG | |
1da177e4 LT |
184 | help |
185 | Say Y here to be able to turn CPUs off and on. CPUs | |
186 | can be controlled through /sys/devices/system/cpu/cpu#. | |
187 | Say N if you want to disable CPU hotplug. | |
188 | ||
8d11e021 HC |
189 | config SCHED_MC |
190 | def_bool y | |
191 | prompt "Multi-core scheduler support" | |
192 | depends on SMP | |
193 | help | |
194 | Multi-core scheduler support improves the CPU scheduler's decision | |
195 | making when dealing with multi-core CPU chips at a cost of slightly | |
196 | increased overhead in some places. | |
197 | ||
4cb14bc8 | 198 | config SCHED_BOOK |
6f9a3c33 MS |
199 | def_bool y |
200 | prompt "Book scheduler support" | |
8d11e021 | 201 | depends on SMP && SCHED_MC |
4cb14bc8 HC |
202 | help |
203 | Book scheduler support improves the CPU scheduler's decision making | |
204 | when dealing with machines that have several books. | |
205 | ||
1da177e4 | 206 | config MATHEMU |
6f9a3c33 MS |
207 | def_bool y |
208 | prompt "IEEE FPU emulation" | |
1da177e4 LT |
209 | depends on MARCH_G5 |
210 | help | |
211 | This option is required for IEEE compliant floating point arithmetic | |
db81a23d | 212 | on older ESA/390 machines. Say Y unless you know your machine doesn't |
1da177e4 LT |
213 | need this. |
214 | ||
347a8dc3 | 215 | config COMPAT |
6f9a3c33 MS |
216 | def_bool y |
217 | prompt "Kernel support for 31 bit emulation" | |
347a8dc3 | 218 | depends on 64BIT |
63506c41 | 219 | select COMPAT_BINFMT_ELF |
1da177e4 LT |
220 | help |
221 | Select this option if you want to enable your system kernel to | |
222 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
223 | (and some other stuff like libraries and such) is needed for | |
224 | executing 31 bit applications. It is safe to say "Y". | |
225 | ||
1da177e4 | 226 | config SYSVIPC_COMPAT |
6f9a3c33 | 227 | def_bool y if COMPAT && SYSVIPC |
1da177e4 | 228 | |
e65e1fc2 | 229 | config AUDIT_ARCH |
6f9a3c33 | 230 | def_bool y |
e65e1fc2 | 231 | |
c1821c2e | 232 | config S390_EXEC_PROTECT |
6f9a3c33 MS |
233 | def_bool y |
234 | prompt "Data execute protection" | |
c1821c2e GS |
235 | help |
236 | This option allows to enable a buffer overflow protection for user | |
237 | space programs and it also selects the addressing mode option above. | |
238 | The kernel parameter noexec=on will enable this feature and also | |
239 | switch the addressing modes, default is disabled. Enabling this (via | |
db81a23d HC |
240 | kernel parameter) on machines earlier than IBM System z9 this will |
241 | reduce system performance. | |
c1821c2e | 242 | |
1da177e4 LT |
243 | comment "Code generation options" |
244 | ||
245 | choice | |
246 | prompt "Processor type" | |
247 | default MARCH_G5 | |
248 | ||
249 | config MARCH_G5 | |
db81a23d | 250 | bool "System/390 model G5 and G6" |
347a8dc3 | 251 | depends on !64BIT |
1da177e4 LT |
252 | help |
253 | Select this to build a 31 bit kernel that works | |
db81a23d | 254 | on all ESA/390 and z/Architecture machines. |
1da177e4 LT |
255 | |
256 | config MARCH_Z900 | |
db81a23d | 257 | bool "IBM zSeries model z800 and z900" |
1da177e4 | 258 | help |
db81a23d HC |
259 | Select this to enable optimizations for model z800/z900 (2064 and |
260 | 2066 series). This will enable some optimizations that are not | |
261 | available on older ESA/390 (31 Bit) only CPUs. | |
1da177e4 LT |
262 | |
263 | config MARCH_Z990 | |
db81a23d | 264 | bool "IBM zSeries model z890 and z990" |
1da177e4 | 265 | help |
db81a23d HC |
266 | Select this to enable optimizations for model z890/z990 (2084 and |
267 | 2086 series). The kernel will be slightly faster but will not work | |
268 | on older machines. | |
1da177e4 | 269 | |
0efa4703 CB |
270 | config MARCH_Z9_109 |
271 | bool "IBM System z9" | |
272 | help | |
db81a23d HC |
273 | Select this to enable optimizations for IBM System z9 (2094 and |
274 | 2096 series). The kernel will be slightly faster but will not work | |
275 | on older machines. | |
0efa4703 | 276 | |
e37f50e1 MS |
277 | config MARCH_Z10 |
278 | bool "IBM System z10" | |
279 | help | |
db81a23d HC |
280 | Select this to enable optimizations for IBM System z10 (2097 and |
281 | 2098 series). The kernel will be slightly faster but will not work | |
282 | on older machines. | |
e37f50e1 | 283 | |
f861e405 HC |
284 | config MARCH_Z196 |
285 | bool "IBM zEnterprise 196" | |
286 | help | |
db81a23d HC |
287 | Select this to enable optimizations for IBM zEnterprise 196 |
288 | (2817 series). The kernel will be slightly faster but will not work | |
289 | on older machines. | |
f861e405 | 290 | |
1da177e4 LT |
291 | endchoice |
292 | ||
293 | config PACK_STACK | |
6f9a3c33 MS |
294 | def_bool y |
295 | prompt "Pack kernel stack" | |
1da177e4 LT |
296 | help |
297 | This option enables the compiler option -mkernel-backchain if it | |
298 | is available. If the option is available the compiler supports | |
299 | the new stack layout which dramatically reduces the minimum stack | |
300 | frame size. With an old compiler a non-leaf function needs a | |
301 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With | |
302 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit | |
303 | and 24 byte on 64 bit. | |
304 | ||
305 | Say Y if you are unsure. | |
306 | ||
307 | config SMALL_STACK | |
6f9a3c33 MS |
308 | def_bool n |
309 | prompt "Use 8kb for kernel stack instead of 16kb" | |
7f5a8ba6 | 310 | depends on PACK_STACK && 64BIT && !LOCKDEP |
1da177e4 LT |
311 | help |
312 | If you say Y here and the compiler supports the -mkernel-backchain | |
7f5a8ba6 HC |
313 | option the kernel will use a smaller kernel stack size. The reduced |
314 | size is 8kb instead of 16kb. This allows to run more threads on a | |
315 | system and reduces the pressure on the memory management for higher | |
316 | order page allocations. | |
1da177e4 LT |
317 | |
318 | Say N if you are unsure. | |
319 | ||
1da177e4 | 320 | config CHECK_STACK |
6f9a3c33 MS |
321 | def_bool y |
322 | prompt "Detect kernel stack overflow" | |
1da177e4 LT |
323 | help |
324 | This option enables the compiler option -mstack-guard and | |
325 | -mstack-size if they are available. If the compiler supports them | |
326 | it will emit additional code to each function prolog to trigger | |
327 | an illegal operation if the kernel stack is about to overflow. | |
328 | ||
329 | Say N if you are unsure. | |
330 | ||
331 | config STACK_GUARD | |
332 | int "Size of the guard area (128-1024)" | |
333 | range 128 1024 | |
334 | depends on CHECK_STACK | |
335 | default "256" | |
336 | help | |
337 | This allows you to specify the size of the guard area at the lower | |
338 | end of the kernel stack. If the kernel stack points into the guard | |
339 | area on function entry an illegal operation is triggered. The size | |
340 | needs to be a power of 2. Please keep in mind that the size of an | |
341 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
342 | The minimum size for the stack guard should be 256 for 31 bit and | |
343 | 512 for 64 bit. | |
344 | ||
2c190da4 | 345 | config WARN_DYNAMIC_STACK |
6f9a3c33 | 346 | def_bool n |
2c190da4 | 347 | prompt "Emit compiler warnings for function with dynamic stack usage" |
1da177e4 | 348 | help |
2c190da4 JG |
349 | This option enables the compiler option -mwarn-dynamicstack. If the |
350 | compiler supports this options generates warnings for functions | |
351 | that dynamically allocate stack space using alloca. | |
1da177e4 LT |
352 | |
353 | Say N if you are unsure. | |
354 | ||
39b742f9 HC |
355 | config ARCH_POPULATES_NODE_MAP |
356 | def_bool y | |
357 | ||
61d48c2c MS |
358 | comment "Kernel preemption" |
359 | ||
360 | source "kernel/Kconfig.preempt" | |
361 | ||
17f34580 HC |
362 | config ARCH_SPARSEMEM_ENABLE |
363 | def_bool y | |
364 | select SPARSEMEM_VMEMMAP_ENABLE | |
365 | select SPARSEMEM_VMEMMAP | |
148f1678 | 366 | select SPARSEMEM_STATIC if !64BIT |
17f34580 HC |
367 | |
368 | config ARCH_SPARSEMEM_DEFAULT | |
369 | def_bool y | |
370 | ||
97195d6b | 371 | config ARCH_SELECT_MEMORY_MODEL |
6f9a3c33 | 372 | def_bool y |
97195d6b | 373 | |
421c175c | 374 | config ARCH_ENABLE_MEMORY_HOTPLUG |
6f9a3c33 | 375 | def_bool y if SPARSEMEM |
421c175c | 376 | |
7e9238fb GS |
377 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
378 | def_bool y | |
379 | ||
155af2f9 | 380 | config ARCH_HIBERNATION_POSSIBLE |
6f9a3c33 | 381 | def_bool y if 64BIT |
155af2f9 | 382 | |
3f22ab27 DH |
383 | source "mm/Kconfig" |
384 | ||
1da177e4 LT |
385 | comment "I/O subsystem configuration" |
386 | ||
1da177e4 | 387 | config QDIO |
6f9a3c33 MS |
388 | def_tristate y |
389 | prompt "QDIO support" | |
1da177e4 | 390 | ---help--- |
8129ee16 | 391 | This driver provides the Queued Direct I/O base support for |
efca13bc | 392 | IBM System z. |
1da177e4 LT |
393 | |
394 | To compile this driver as a module, choose M here: the | |
395 | module will be called qdio. | |
396 | ||
397 | If unsure, say Y. | |
398 | ||
9d92a7e1 | 399 | config CHSC_SCH |
d9c11b1e | 400 | def_tristate m |
6f9a3c33 | 401 | prompt "Support for CHSC subchannels" |
9d92a7e1 CH |
402 | help |
403 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
404 | is usually present on LPAR only. | |
405 | The driver creates a device /dev/chsc, which may be used to | |
406 | obtain I/O configuration information about the machine and | |
407 | to issue asynchronous chsc commands (DANGEROUS). | |
408 | You will usually only want to use this interface on a special | |
409 | LPAR designated for system management. | |
410 | ||
411 | To compile this driver as a module, choose M here: the | |
412 | module will be called chsc_sch. | |
413 | ||
414 | If unsure, say N. | |
415 | ||
1da177e4 LT |
416 | comment "Misc" |
417 | ||
1da177e4 | 418 | config IPL |
6f9a3c33 MS |
419 | def_bool y |
420 | prompt "Builtin IPL record support" | |
1da177e4 LT |
421 | help |
422 | If you want to use the produced kernel to IPL directly from a | |
423 | device, you have to merge a bootsector specific to the device | |
424 | into the first bytes of the kernel. You will have to select the | |
425 | IPL device. | |
426 | ||
427 | choice | |
428 | prompt "IPL method generated into head.S" | |
429 | depends on IPL | |
46e7951f | 430 | default IPL_VM |
1da177e4 LT |
431 | help |
432 | Select "tape" if you want to IPL the image from a Tape. | |
433 | ||
434 | Select "vm_reader" if you are running under VM/ESA and want | |
435 | to IPL the image from the emulated card reader. | |
436 | ||
437 | config IPL_TAPE | |
438 | bool "tape" | |
439 | ||
440 | config IPL_VM | |
441 | bool "vm_reader" | |
442 | ||
443 | endchoice | |
444 | ||
445 | source "fs/Kconfig.binfmt" | |
446 | ||
684de39b HC |
447 | config FORCE_MAX_ZONEORDER |
448 | int | |
449 | default "9" | |
450 | ||
1da177e4 | 451 | config PFAULT |
6f9a3c33 MS |
452 | def_bool y |
453 | prompt "Pseudo page fault support" | |
1da177e4 LT |
454 | help |
455 | Select this option, if you want to use PFAULT pseudo page fault | |
456 | handling under VM. If running native or in LPAR, this option | |
457 | has no effect. If your VM does not support PFAULT, PAGEEX | |
458 | pseudo page fault handling will be used. | |
459 | Note that VM 4.2 supports PFAULT but has a bug in its | |
460 | implementation that causes some problems. | |
461 | Everybody who wants to run Linux under VM != VM4.2 should select | |
462 | this option. | |
463 | ||
464 | config SHARED_KERNEL | |
6f9a3c33 MS |
465 | def_bool y |
466 | prompt "VM shared kernel support" | |
1da177e4 LT |
467 | help |
468 | Select this option, if you want to share the text segment of the | |
469 | Linux kernel between different VM guests. This reduces memory | |
470 | usage with lots of guests but greatly increases kernel size. | |
9c9c1761 HC |
471 | Also if a kernel was IPL'ed from a shared segment the kexec system |
472 | call will not work. | |
1da177e4 LT |
473 | You should only select this option if you know what you are |
474 | doing and want to exploit this feature. | |
475 | ||
476 | config CMM | |
6f9a3c33 MS |
477 | def_tristate n |
478 | prompt "Cooperative memory management" | |
1da177e4 LT |
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 | ||
1da177e4 | 489 | config CMM_IUCV |
6f9a3c33 MS |
490 | def_bool y |
491 | prompt "IUCV special message interface to cooperative memory management" | |
1da177e4 LT |
492 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
493 | help | |
494 | Select this option to enable the special message interface to | |
495 | the cooperative memory management. | |
496 | ||
1da177e4 | 497 | config APPLDATA_BASE |
6f9a3c33 MS |
498 | def_bool n |
499 | prompt "Linux - VM Monitor Stream, base infrastructure" | |
c185b783 | 500 | depends on PROC_FS |
1da177e4 LT |
501 | help |
502 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
503 | monitor records. The monitor records are updated at certain time | |
504 | intervals, once the timer is started. | |
505 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
506 | i.e. enables or disables monitoring on the Linux side. | |
507 | A custom interval value (in seconds) can be written to | |
508 | /proc/appldata/interval. | |
509 | ||
510 | Defaults are 60 seconds interval and timer off. | |
511 | The /proc entries can also be read from, showing the current settings. | |
512 | ||
513 | config APPLDATA_MEM | |
6f9a3c33 MS |
514 | def_tristate m |
515 | prompt "Monitor memory management statistics" | |
62fb2ba3 | 516 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
517 | help |
518 | This provides memory management related data to the Linux - VM Monitor | |
519 | Stream, like paging/swapping rate, memory utilisation, etc. | |
520 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
521 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
522 | on the z/VM side. | |
523 | ||
524 | Default is disabled. | |
525 | The /proc entry can also be read from, showing the current settings. | |
526 | ||
527 | This can also be compiled as a module, which will be called | |
528 | appldata_mem.o. | |
529 | ||
530 | config APPLDATA_OS | |
6f9a3c33 MS |
531 | def_tristate m |
532 | prompt "Monitor OS statistics" | |
1da177e4 LT |
533 | depends on APPLDATA_BASE |
534 | help | |
535 | This provides OS related data to the Linux - VM Monitor Stream, like | |
536 | CPU utilisation, etc. | |
537 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM | |
538 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
539 | on the z/VM side. | |
540 | ||
541 | Default is disabled. | |
542 | This can also be compiled as a module, which will be called | |
543 | appldata_os.o. | |
544 | ||
545 | config APPLDATA_NET_SUM | |
6f9a3c33 MS |
546 | def_tristate m |
547 | prompt "Monitor overall network statistics" | |
70193af9 | 548 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
549 | help |
550 | This provides network related data to the Linux - VM Monitor Stream, | |
551 | currently there is only a total sum of network I/O statistics, no | |
552 | per-interface data. | |
553 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM | |
554 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
555 | on the z/VM side. | |
556 | ||
557 | Default is disabled. | |
558 | This can also be compiled as a module, which will be called | |
559 | appldata_net_sum.o. | |
560 | ||
61d48c2c MS |
561 | source kernel/Kconfig.hz |
562 | ||
24bbb1fa | 563 | config S390_HYPFS_FS |
6f9a3c33 MS |
564 | def_bool y |
565 | prompt "s390 hypervisor file system support" | |
24bbb1fa | 566 | select SYS_HYPERVISOR |
24bbb1fa MH |
567 | help |
568 | This is a virtual file system intended to provide accounting | |
569 | information in an s390 hypervisor environment. | |
570 | ||
cf13f0ea | 571 | config KEXEC |
6f9a3c33 MS |
572 | def_bool n |
573 | prompt "kexec system call" | |
cf13f0ea HC |
574 | help |
575 | kexec is a system call that implements the ability to shutdown your | |
576 | current kernel, and to start another kernel. It is like a reboot | |
577 | but is independent of hardware/microcode support. | |
578 | ||
411ed322 | 579 | config ZFCPDUMP |
6f9a3c33 MS |
580 | def_bool n |
581 | prompt "zfcpdump support" | |
411ed322 | 582 | select SMP |
411ed322 MH |
583 | help |
584 | Select this option if you want to build an zfcpdump enabled kernel. | |
e403149c | 585 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
411ed322 | 586 | |
fa587743 | 587 | config S390_GUEST |
6f9a3c33 MS |
588 | def_bool y |
589 | prompt "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 | |
6f9a3c33 MS |
601 | def_bool y |
602 | prompt "Enable seccomp to safely compute untrusted bytecode" | |
bcf5cef7 | 603 | depends on PROC_FS |
bcf5cef7 HC |
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" |