Commit | Line | Data |
---|---|---|
1da177e4 | 1 | config MMU |
61d48c2c | 2 | def_bool y |
1da177e4 | 3 | |
66701b14 | 4 | config ZONE_DMA |
69dbb2f7 | 5 | def_bool y |
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 |
df013ffb | 84 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
1844c9bc MS |
85 | select HAVE_KERNEL_GZIP |
86 | select HAVE_KERNEL_BZIP2 | |
87 | select HAVE_KERNEL_LZMA | |
cdf56649 | 88 | select HAVE_KERNEL_LZO |
d7b081ac | 89 | select HAVE_KERNEL_XZ |
80217147 | 90 | select HAVE_GET_USER_PAGES_FAST |
34b133f8 | 91 | select HAVE_ARCH_MUTEX_CPU_RELAX |
5373db88 | 92 | select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 |
36409f63 | 93 | select HAVE_RCU_TABLE_FREE if SMP |
85055dd8 | 94 | select ARCH_SAVE_PAGE_KEYS if HIBERNATION |
6beb0009 TG |
95 | select ARCH_INLINE_SPIN_TRYLOCK |
96 | select ARCH_INLINE_SPIN_TRYLOCK_BH | |
97 | select ARCH_INLINE_SPIN_LOCK | |
98 | select ARCH_INLINE_SPIN_LOCK_BH | |
99 | select ARCH_INLINE_SPIN_LOCK_IRQ | |
100 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE | |
101 | select ARCH_INLINE_SPIN_UNLOCK | |
102 | select ARCH_INLINE_SPIN_UNLOCK_BH | |
103 | select ARCH_INLINE_SPIN_UNLOCK_IRQ | |
104 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE | |
105 | select ARCH_INLINE_READ_TRYLOCK | |
106 | select ARCH_INLINE_READ_LOCK | |
107 | select ARCH_INLINE_READ_LOCK_BH | |
108 | select ARCH_INLINE_READ_LOCK_IRQ | |
109 | select ARCH_INLINE_READ_LOCK_IRQSAVE | |
110 | select ARCH_INLINE_READ_UNLOCK | |
111 | select ARCH_INLINE_READ_UNLOCK_BH | |
112 | select ARCH_INLINE_READ_UNLOCK_IRQ | |
113 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE | |
114 | select ARCH_INLINE_WRITE_TRYLOCK | |
115 | select ARCH_INLINE_WRITE_LOCK | |
116 | select ARCH_INLINE_WRITE_LOCK_BH | |
117 | select ARCH_INLINE_WRITE_LOCK_IRQ | |
118 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE | |
119 | select ARCH_INLINE_WRITE_UNLOCK | |
120 | select ARCH_INLINE_WRITE_UNLOCK_BH | |
121 | select ARCH_INLINE_WRITE_UNLOCK_IRQ | |
122 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE | |
1da177e4 | 123 | |
fca3e357 | 124 | config SCHED_OMIT_FRAME_POINTER |
6f9a3c33 | 125 | def_bool y |
fca3e357 | 126 | |
1da177e4 LT |
127 | source "init/Kconfig" |
128 | ||
dc52ddc0 MH |
129 | source "kernel/Kconfig.freezer" |
130 | ||
1da177e4 LT |
131 | menu "Base setup" |
132 | ||
133 | comment "Processor type and features" | |
134 | ||
5a62b192 HC |
135 | source "kernel/time/Kconfig" |
136 | ||
347a8dc3 | 137 | config 64BIT |
6f9a3c33 MS |
138 | def_bool y |
139 | prompt "64 bit kernel" | |
1da177e4 | 140 | help |
db81a23d | 141 | Select this option if you have an IBM z/Architecture machine |
1da177e4 LT |
142 | and want to use the 64 bit addressing mode. |
143 | ||
d9f7a745 | 144 | config 32BIT |
6f9a3c33 | 145 | def_bool y if !64BIT |
d9f7a745 | 146 | |
07606309 MS |
147 | config KTIME_SCALAR |
148 | def_bool 32BIT | |
149 | ||
1da177e4 | 150 | config SMP |
6f9a3c33 MS |
151 | def_bool y |
152 | prompt "Symmetric multi-processing support" | |
1da177e4 LT |
153 | ---help--- |
154 | This enables support for systems with more than one CPU. If you have | |
155 | a system with only one CPU, like most personal computers, say N. If | |
156 | you have a system with more than one CPU, say Y. | |
157 | ||
158 | If you say N here, the kernel will run on single and multiprocessor | |
159 | machines, but will use only one CPU of a multiprocessor machine. If | |
160 | you say Y here, the kernel will run on many, but not all, | |
161 | singleprocessor machines. On a singleprocessor machine, the kernel | |
162 | will run faster if you say N here. | |
163 | ||
03502faa AB |
164 | See also the SMP-HOWTO available at |
165 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
166 | |
167 | Even if you don't know what to do here, say Y. | |
168 | ||
169 | config NR_CPUS | |
170 | int "Maximum number of CPUs (2-64)" | |
171 | range 2 64 | |
172 | depends on SMP | |
057c5cb3 HC |
173 | default "32" if !64BIT |
174 | default "64" if 64BIT | |
1da177e4 LT |
175 | help |
176 | This allows you to specify the maximum number of CPUs which this | |
177 | kernel will support. The maximum supported value is 64 and the | |
178 | minimum value which makes sense is 2. | |
179 | ||
180 | This is purely to save memory - each supported CPU adds | |
181 | approximately sixteen kilobytes to the kernel image. | |
182 | ||
183 | config HOTPLUG_CPU | |
6f9a3c33 MS |
184 | def_bool y |
185 | prompt "Support for hot-pluggable CPUs" | |
1da177e4 LT |
186 | depends on SMP |
187 | select HOTPLUG | |
1da177e4 LT |
188 | help |
189 | Say Y here to be able to turn CPUs off and on. CPUs | |
190 | can be controlled through /sys/devices/system/cpu/cpu#. | |
191 | Say N if you want to disable CPU hotplug. | |
192 | ||
8d11e021 HC |
193 | config SCHED_MC |
194 | def_bool y | |
195 | prompt "Multi-core scheduler support" | |
196 | depends on SMP | |
197 | help | |
198 | Multi-core scheduler support improves the CPU scheduler's decision | |
199 | making when dealing with multi-core CPU chips at a cost of slightly | |
200 | increased overhead in some places. | |
201 | ||
4cb14bc8 | 202 | config SCHED_BOOK |
6f9a3c33 MS |
203 | def_bool y |
204 | prompt "Book scheduler support" | |
8d11e021 | 205 | depends on SMP && SCHED_MC |
4cb14bc8 HC |
206 | help |
207 | Book scheduler support improves the CPU scheduler's decision making | |
208 | when dealing with machines that have several books. | |
209 | ||
1da177e4 | 210 | config MATHEMU |
6f9a3c33 MS |
211 | def_bool y |
212 | prompt "IEEE FPU emulation" | |
1da177e4 LT |
213 | depends on MARCH_G5 |
214 | help | |
215 | This option is required for IEEE compliant floating point arithmetic | |
db81a23d | 216 | on older ESA/390 machines. Say Y unless you know your machine doesn't |
1da177e4 LT |
217 | need this. |
218 | ||
347a8dc3 | 219 | config COMPAT |
6f9a3c33 MS |
220 | def_bool y |
221 | prompt "Kernel support for 31 bit emulation" | |
347a8dc3 | 222 | depends on 64BIT |
63506c41 | 223 | select COMPAT_BINFMT_ELF |
1da177e4 LT |
224 | help |
225 | Select this option if you want to enable your system kernel to | |
226 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
227 | (and some other stuff like libraries and such) is needed for | |
228 | executing 31 bit applications. It is safe to say "Y". | |
229 | ||
1da177e4 | 230 | config SYSVIPC_COMPAT |
6f9a3c33 | 231 | def_bool y if COMPAT && SYSVIPC |
1da177e4 | 232 | |
e65e1fc2 | 233 | config AUDIT_ARCH |
6f9a3c33 | 234 | def_bool y |
e65e1fc2 | 235 | |
1da177e4 LT |
236 | comment "Code generation options" |
237 | ||
238 | choice | |
239 | prompt "Processor type" | |
240 | default MARCH_G5 | |
241 | ||
242 | config MARCH_G5 | |
db81a23d | 243 | bool "System/390 model G5 and G6" |
347a8dc3 | 244 | depends on !64BIT |
1da177e4 LT |
245 | help |
246 | Select this to build a 31 bit kernel that works | |
db81a23d | 247 | on all ESA/390 and z/Architecture machines. |
1da177e4 LT |
248 | |
249 | config MARCH_Z900 | |
db81a23d | 250 | bool "IBM zSeries model z800 and z900" |
1da177e4 | 251 | help |
db81a23d HC |
252 | Select this to enable optimizations for model z800/z900 (2064 and |
253 | 2066 series). This will enable some optimizations that are not | |
254 | available on older ESA/390 (31 Bit) only CPUs. | |
1da177e4 LT |
255 | |
256 | config MARCH_Z990 | |
db81a23d | 257 | bool "IBM zSeries model z890 and z990" |
1da177e4 | 258 | help |
db81a23d HC |
259 | Select this to enable optimizations for model z890/z990 (2084 and |
260 | 2086 series). The kernel will be slightly faster but will not work | |
261 | on older machines. | |
1da177e4 | 262 | |
0efa4703 CB |
263 | config MARCH_Z9_109 |
264 | bool "IBM System z9" | |
265 | help | |
db81a23d HC |
266 | Select this to enable optimizations for IBM System z9 (2094 and |
267 | 2096 series). The kernel will be slightly faster but will not work | |
268 | on older machines. | |
0efa4703 | 269 | |
e37f50e1 MS |
270 | config MARCH_Z10 |
271 | bool "IBM System z10" | |
272 | help | |
db81a23d HC |
273 | Select this to enable optimizations for IBM System z10 (2097 and |
274 | 2098 series). The kernel will be slightly faster but will not work | |
275 | on older machines. | |
e37f50e1 | 276 | |
f861e405 | 277 | config MARCH_Z196 |
3a81b171 | 278 | bool "IBM zEnterprise 114 and 196" |
f861e405 | 279 | help |
3a81b171 HC |
280 | Select this to enable optimizations for IBM zEnterprise 114 and 196 |
281 | (2818 and 2817 series). The kernel will be slightly faster but will | |
282 | not work on older machines. | |
f861e405 | 283 | |
1da177e4 LT |
284 | endchoice |
285 | ||
286 | config PACK_STACK | |
6f9a3c33 MS |
287 | def_bool y |
288 | prompt "Pack kernel stack" | |
1da177e4 LT |
289 | help |
290 | This option enables the compiler option -mkernel-backchain if it | |
291 | is available. If the option is available the compiler supports | |
292 | the new stack layout which dramatically reduces the minimum stack | |
293 | frame size. With an old compiler a non-leaf function needs a | |
294 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With | |
295 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit | |
296 | and 24 byte on 64 bit. | |
297 | ||
298 | Say Y if you are unsure. | |
299 | ||
300 | config SMALL_STACK | |
6f9a3c33 MS |
301 | def_bool n |
302 | prompt "Use 8kb for kernel stack instead of 16kb" | |
7f5a8ba6 | 303 | depends on PACK_STACK && 64BIT && !LOCKDEP |
1da177e4 LT |
304 | help |
305 | If you say Y here and the compiler supports the -mkernel-backchain | |
7f5a8ba6 HC |
306 | option the kernel will use a smaller kernel stack size. The reduced |
307 | size is 8kb instead of 16kb. This allows to run more threads on a | |
308 | system and reduces the pressure on the memory management for higher | |
309 | order page allocations. | |
1da177e4 LT |
310 | |
311 | Say N if you are unsure. | |
312 | ||
1da177e4 | 313 | config CHECK_STACK |
6f9a3c33 MS |
314 | def_bool y |
315 | prompt "Detect kernel stack overflow" | |
1da177e4 LT |
316 | help |
317 | This option enables the compiler option -mstack-guard and | |
318 | -mstack-size if they are available. If the compiler supports them | |
319 | it will emit additional code to each function prolog to trigger | |
320 | an illegal operation if the kernel stack is about to overflow. | |
321 | ||
322 | Say N if you are unsure. | |
323 | ||
324 | config STACK_GUARD | |
325 | int "Size of the guard area (128-1024)" | |
326 | range 128 1024 | |
327 | depends on CHECK_STACK | |
328 | default "256" | |
329 | help | |
330 | This allows you to specify the size of the guard area at the lower | |
331 | end of the kernel stack. If the kernel stack points into the guard | |
332 | area on function entry an illegal operation is triggered. The size | |
333 | needs to be a power of 2. Please keep in mind that the size of an | |
334 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
335 | The minimum size for the stack guard should be 256 for 31 bit and | |
336 | 512 for 64 bit. | |
337 | ||
2c190da4 | 338 | config WARN_DYNAMIC_STACK |
6f9a3c33 | 339 | def_bool n |
2c190da4 | 340 | prompt "Emit compiler warnings for function with dynamic stack usage" |
1da177e4 | 341 | help |
2c190da4 JG |
342 | This option enables the compiler option -mwarn-dynamicstack. If the |
343 | compiler supports this options generates warnings for functions | |
344 | that dynamically allocate stack space using alloca. | |
1da177e4 LT |
345 | |
346 | Say N if you are unsure. | |
347 | ||
39b742f9 HC |
348 | config ARCH_POPULATES_NODE_MAP |
349 | def_bool y | |
350 | ||
61d48c2c MS |
351 | comment "Kernel preemption" |
352 | ||
353 | source "kernel/Kconfig.preempt" | |
354 | ||
17f34580 HC |
355 | config ARCH_SPARSEMEM_ENABLE |
356 | def_bool y | |
357 | select SPARSEMEM_VMEMMAP_ENABLE | |
358 | select SPARSEMEM_VMEMMAP | |
148f1678 | 359 | select SPARSEMEM_STATIC if !64BIT |
17f34580 HC |
360 | |
361 | config ARCH_SPARSEMEM_DEFAULT | |
362 | def_bool y | |
363 | ||
97195d6b | 364 | config ARCH_SELECT_MEMORY_MODEL |
6f9a3c33 | 365 | def_bool y |
97195d6b | 366 | |
421c175c | 367 | config ARCH_ENABLE_MEMORY_HOTPLUG |
6f9a3c33 | 368 | def_bool y if SPARSEMEM |
421c175c | 369 | |
7e9238fb GS |
370 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
371 | def_bool y | |
372 | ||
155af2f9 | 373 | config ARCH_HIBERNATION_POSSIBLE |
6f9a3c33 | 374 | def_bool y if 64BIT |
155af2f9 | 375 | |
3f22ab27 DH |
376 | source "mm/Kconfig" |
377 | ||
1da177e4 LT |
378 | comment "I/O subsystem configuration" |
379 | ||
1da177e4 | 380 | config QDIO |
6f9a3c33 MS |
381 | def_tristate y |
382 | prompt "QDIO support" | |
1da177e4 | 383 | ---help--- |
8129ee16 | 384 | This driver provides the Queued Direct I/O base support for |
efca13bc | 385 | IBM System z. |
1da177e4 LT |
386 | |
387 | To compile this driver as a module, choose M here: the | |
388 | module will be called qdio. | |
389 | ||
390 | If unsure, say Y. | |
391 | ||
9d92a7e1 | 392 | config CHSC_SCH |
d9c11b1e | 393 | def_tristate m |
6f9a3c33 | 394 | prompt "Support for CHSC subchannels" |
9d92a7e1 CH |
395 | help |
396 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
397 | is usually present on LPAR only. | |
398 | The driver creates a device /dev/chsc, which may be used to | |
399 | obtain I/O configuration information about the machine and | |
400 | to issue asynchronous chsc commands (DANGEROUS). | |
401 | You will usually only want to use this interface on a special | |
402 | LPAR designated for system management. | |
403 | ||
404 | To compile this driver as a module, choose M here: the | |
405 | module will be called chsc_sch. | |
406 | ||
407 | If unsure, say N. | |
408 | ||
1da177e4 LT |
409 | comment "Misc" |
410 | ||
1da177e4 | 411 | config IPL |
6f9a3c33 MS |
412 | def_bool y |
413 | prompt "Builtin IPL record support" | |
1da177e4 LT |
414 | help |
415 | If you want to use the produced kernel to IPL directly from a | |
416 | device, you have to merge a bootsector specific to the device | |
417 | into the first bytes of the kernel. You will have to select the | |
418 | IPL device. | |
419 | ||
420 | choice | |
421 | prompt "IPL method generated into head.S" | |
422 | depends on IPL | |
46e7951f | 423 | default IPL_VM |
1da177e4 LT |
424 | help |
425 | Select "tape" if you want to IPL the image from a Tape. | |
426 | ||
427 | Select "vm_reader" if you are running under VM/ESA and want | |
428 | to IPL the image from the emulated card reader. | |
429 | ||
430 | config IPL_TAPE | |
431 | bool "tape" | |
432 | ||
433 | config IPL_VM | |
434 | bool "vm_reader" | |
435 | ||
436 | endchoice | |
437 | ||
438 | source "fs/Kconfig.binfmt" | |
439 | ||
684de39b HC |
440 | config FORCE_MAX_ZONEORDER |
441 | int | |
442 | default "9" | |
443 | ||
1da177e4 | 444 | config PFAULT |
6f9a3c33 MS |
445 | def_bool y |
446 | prompt "Pseudo page fault support" | |
1da177e4 LT |
447 | help |
448 | Select this option, if you want to use PFAULT pseudo page fault | |
449 | handling under VM. If running native or in LPAR, this option | |
450 | has no effect. If your VM does not support PFAULT, PAGEEX | |
451 | pseudo page fault handling will be used. | |
452 | Note that VM 4.2 supports PFAULT but has a bug in its | |
453 | implementation that causes some problems. | |
454 | Everybody who wants to run Linux under VM != VM4.2 should select | |
455 | this option. | |
456 | ||
457 | config SHARED_KERNEL | |
6f9a3c33 MS |
458 | def_bool y |
459 | prompt "VM shared kernel support" | |
1da177e4 LT |
460 | help |
461 | Select this option, if you want to share the text segment of the | |
462 | Linux kernel between different VM guests. This reduces memory | |
463 | usage with lots of guests but greatly increases kernel size. | |
9c9c1761 HC |
464 | Also if a kernel was IPL'ed from a shared segment the kexec system |
465 | call will not work. | |
1da177e4 LT |
466 | You should only select this option if you know what you are |
467 | doing and want to exploit this feature. | |
468 | ||
469 | config CMM | |
6f9a3c33 MS |
470 | def_tristate n |
471 | prompt "Cooperative memory management" | |
1da177e4 LT |
472 | help |
473 | Select this option, if you want to enable the kernel interface | |
474 | to reduce the memory size of the system. This is accomplished | |
475 | by allocating pages of memory and put them "on hold". This only | |
476 | makes sense for a system running under VM where the unused pages | |
477 | will be reused by VM for other guest systems. The interface | |
478 | allows an external monitor to balance memory of many systems. | |
479 | Everybody who wants to run Linux under VM should select this | |
480 | option. | |
481 | ||
1da177e4 | 482 | config CMM_IUCV |
6f9a3c33 MS |
483 | def_bool y |
484 | prompt "IUCV special message interface to cooperative memory management" | |
1da177e4 LT |
485 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
486 | help | |
487 | Select this option to enable the special message interface to | |
488 | the cooperative memory management. | |
489 | ||
1da177e4 | 490 | config APPLDATA_BASE |
6f9a3c33 MS |
491 | def_bool n |
492 | prompt "Linux - VM Monitor Stream, base infrastructure" | |
c185b783 | 493 | depends on PROC_FS |
1da177e4 LT |
494 | help |
495 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
496 | monitor records. The monitor records are updated at certain time | |
497 | intervals, once the timer is started. | |
498 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
499 | i.e. enables or disables monitoring on the Linux side. | |
500 | A custom interval value (in seconds) can be written to | |
501 | /proc/appldata/interval. | |
502 | ||
503 | Defaults are 60 seconds interval and timer off. | |
504 | The /proc entries can also be read from, showing the current settings. | |
505 | ||
506 | config APPLDATA_MEM | |
6f9a3c33 MS |
507 | def_tristate m |
508 | prompt "Monitor memory management statistics" | |
62fb2ba3 | 509 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
510 | help |
511 | This provides memory management related data to the Linux - VM Monitor | |
512 | Stream, like paging/swapping rate, memory utilisation, etc. | |
513 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
514 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
515 | on the z/VM side. | |
516 | ||
517 | Default is disabled. | |
518 | The /proc entry can also be read from, showing the current settings. | |
519 | ||
520 | This can also be compiled as a module, which will be called | |
521 | appldata_mem.o. | |
522 | ||
523 | config APPLDATA_OS | |
6f9a3c33 MS |
524 | def_tristate m |
525 | prompt "Monitor OS statistics" | |
1da177e4 LT |
526 | depends on APPLDATA_BASE |
527 | help | |
528 | This provides OS related data to the Linux - VM Monitor Stream, like | |
529 | CPU utilisation, etc. | |
530 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM | |
531 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
532 | on the z/VM side. | |
533 | ||
534 | Default is disabled. | |
535 | This can also be compiled as a module, which will be called | |
536 | appldata_os.o. | |
537 | ||
538 | config APPLDATA_NET_SUM | |
6f9a3c33 MS |
539 | def_tristate m |
540 | prompt "Monitor overall network statistics" | |
70193af9 | 541 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
542 | help |
543 | This provides network related data to the Linux - VM Monitor Stream, | |
544 | currently there is only a total sum of network I/O statistics, no | |
545 | per-interface data. | |
546 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM | |
547 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
548 | on the z/VM side. | |
549 | ||
550 | Default is disabled. | |
551 | This can also be compiled as a module, which will be called | |
552 | appldata_net_sum.o. | |
553 | ||
61d48c2c MS |
554 | source kernel/Kconfig.hz |
555 | ||
24bbb1fa | 556 | config S390_HYPFS_FS |
6f9a3c33 MS |
557 | def_bool y |
558 | prompt "s390 hypervisor file system support" | |
24bbb1fa | 559 | select SYS_HYPERVISOR |
24bbb1fa MH |
560 | help |
561 | This is a virtual file system intended to provide accounting | |
562 | information in an s390 hypervisor environment. | |
563 | ||
cf13f0ea | 564 | config KEXEC |
6f9a3c33 MS |
565 | def_bool n |
566 | prompt "kexec system call" | |
cf13f0ea HC |
567 | help |
568 | kexec is a system call that implements the ability to shutdown your | |
569 | current kernel, and to start another kernel. It is like a reboot | |
570 | but is independent of hardware/microcode support. | |
571 | ||
60a0c68d MH |
572 | config CRASH_DUMP |
573 | bool "kernel crash dumps" | |
574 | depends on 64BIT | |
575 | help | |
576 | Generate crash dump after being started by kexec. | |
577 | Crash dump kernels are loaded in the main kernel with kexec-tools | |
578 | into a specially reserved region and then later executed after | |
579 | a crash by kdump/kexec. | |
580 | For more details see Documentation/kdump/kdump.txt | |
581 | ||
411ed322 | 582 | config ZFCPDUMP |
6f9a3c33 MS |
583 | def_bool n |
584 | prompt "zfcpdump support" | |
411ed322 | 585 | select SMP |
411ed322 MH |
586 | help |
587 | Select this option if you want to build an zfcpdump enabled kernel. | |
e403149c | 588 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
411ed322 | 589 | |
fa587743 | 590 | config S390_GUEST |
6f9a3c33 MS |
591 | def_bool y |
592 | prompt "s390 guest support for KVM (EXPERIMENTAL)" | |
fa587743 | 593 | depends on 64BIT && EXPERIMENTAL |
80629b0b | 594 | select VIRTUALIZATION |
fa587743 CO |
595 | select VIRTIO |
596 | select VIRTIO_RING | |
faeba830 | 597 | select VIRTIO_CONSOLE |
fa587743 | 598 | help |
20766c08 CB |
599 | Select this option if you want to run the kernel as a guest under |
600 | the KVM hypervisor. This will add detection for KVM as well as a | |
601 | virtio transport. If KVM is detected, the virtio console will be | |
602 | the default console. | |
bcf5cef7 HC |
603 | |
604 | config SECCOMP | |
6f9a3c33 MS |
605 | def_bool y |
606 | prompt "Enable seccomp to safely compute untrusted bytecode" | |
bcf5cef7 | 607 | depends on PROC_FS |
bcf5cef7 HC |
608 | help |
609 | This kernel feature is useful for number crunching applications | |
610 | that may need to compute untrusted bytecode during their | |
611 | execution. By using pipes or other transports made available to | |
612 | the process as file descriptors supporting the read/write | |
613 | syscalls, it's possible to isolate those applications in | |
614 | their own address space using seccomp. Once seccomp is | |
615 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
616 | and the task is only allowed to execute a few safe syscalls | |
617 | defined by each seccomp mode. | |
618 | ||
619 | If unsure, say Y. | |
620 | ||
1da177e4 LT |
621 | endmenu |
622 | ||
155af2f9 HJP |
623 | menu "Power Management" |
624 | ||
625 | source "kernel/power/Kconfig" | |
626 | ||
627 | endmenu | |
628 | ||
d5950b43 SR |
629 | source "net/Kconfig" |
630 | ||
1da177e4 | 631 | config PCMCIA |
61d48c2c | 632 | def_bool n |
1da177e4 | 633 | |
61d48c2c MS |
634 | config CCW |
635 | def_bool y | |
1da177e4 | 636 | |
61d48c2c | 637 | source "drivers/Kconfig" |
1da177e4 LT |
638 | |
639 | source "fs/Kconfig" | |
640 | ||
1da177e4 LT |
641 | source "arch/s390/Kconfig.debug" |
642 | ||
643 | source "security/Kconfig" | |
644 | ||
645 | source "crypto/Kconfig" | |
646 | ||
647 | source "lib/Kconfig" | |
77b455f1 CB |
648 | |
649 | source "arch/s390/kvm/Kconfig" |