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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 | |
c0007f1a | 31 | config GENERIC_BUG |
6f9a3c33 | 32 | def_bool y if BUG |
c0007f1a | 33 | |
52499f40 HC |
34 | config GENERIC_BUG_RELATIVE_POINTERS |
35 | def_bool y | |
36 | ||
23db764d | 37 | config NO_IOMEM |
5ea81769 AV |
38 | def_bool y |
39 | ||
411f0f3e HC |
40 | config NO_DMA |
41 | def_bool y | |
42 | ||
eca577ef FT |
43 | config ARCH_DMA_ADDR_T_64BIT |
44 | def_bool 64BIT | |
45 | ||
b6b40c53 | 46 | config GENERIC_LOCKBREAK |
6f9a3c33 | 47 | def_bool y if SMP && PREEMPT |
b6b40c53 | 48 | |
402b0862 | 49 | config PGSTE |
6f9a3c33 | 50 | def_bool y if KVM |
402b0862 | 51 | |
c185b783 MS |
52 | config VIRT_CPU_ACCOUNTING |
53 | def_bool y | |
54 | ||
6a11f75b AM |
55 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
56 | def_bool y | |
57 | ||
347a8dc3 | 58 | config S390 |
61d48c2c | 59 | def_bool y |
ca9fc75a | 60 | select USE_GENERIC_SMP_HELPERS if SMP |
5d3b56f9 | 61 | select GENERIC_CPU_DEVICES if !SMP |
ed6bb619 | 62 | select HAVE_SYSCALL_WRAPPERS |
5d360a75 | 63 | select HAVE_FUNCTION_TRACER |
8b4488f8 | 64 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
dfd9f7ab | 65 | select HAVE_FTRACE_MCOUNT_RECORD |
b25c477b | 66 | select HAVE_C_RECORDMCOUNT |
66700001 | 67 | select HAVE_SYSCALL_TRACEPOINTS |
dfd9f7ab | 68 | select HAVE_DYNAMIC_FTRACE |
88dbd203 | 69 | select HAVE_FUNCTION_GRAPH_TRACER |
952974ac | 70 | select HAVE_REGS_AND_STACK_ACCESS_API |
42d4b839 | 71 | select HAVE_OPROFILE |
3f550096 | 72 | select HAVE_KPROBES |
9edddaa2 | 73 | select HAVE_KRETPROBES |
77b455f1 | 74 | select HAVE_KVM if 64BIT |
753c4dd6 | 75 | select HAVE_ARCH_TRACEHOOK |
98a79d6a | 76 | select INIT_ALL_POSSIBLE |
e360adbe | 77 | select HAVE_IRQ_WORK |
cdd6c482 | 78 | select HAVE_PERF_EVENTS |
df013ffb | 79 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
1844c9bc MS |
80 | select HAVE_KERNEL_GZIP |
81 | select HAVE_KERNEL_BZIP2 | |
82 | select HAVE_KERNEL_LZMA | |
cdf56649 | 83 | select HAVE_KERNEL_LZO |
d7b081ac | 84 | select HAVE_KERNEL_XZ |
34b133f8 | 85 | select HAVE_ARCH_MUTEX_CPU_RELAX |
5373db88 | 86 | select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 |
85055dd8 | 87 | select ARCH_SAVE_PAGE_KEYS if HIBERNATION |
7463449b | 88 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
ff38df37 TH |
89 | select HAVE_MEMBLOCK |
90 | select HAVE_MEMBLOCK_NODE_MAP | |
2e30db95 | 91 | select HAVE_CMPXCHG_LOCAL |
ff38df37 | 92 | select ARCH_DISCARD_MEMBLOCK |
6beb0009 TG |
93 | select ARCH_INLINE_SPIN_TRYLOCK |
94 | select ARCH_INLINE_SPIN_TRYLOCK_BH | |
95 | select ARCH_INLINE_SPIN_LOCK | |
96 | select ARCH_INLINE_SPIN_LOCK_BH | |
97 | select ARCH_INLINE_SPIN_LOCK_IRQ | |
98 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE | |
99 | select ARCH_INLINE_SPIN_UNLOCK | |
100 | select ARCH_INLINE_SPIN_UNLOCK_BH | |
101 | select ARCH_INLINE_SPIN_UNLOCK_IRQ | |
102 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE | |
103 | select ARCH_INLINE_READ_TRYLOCK | |
104 | select ARCH_INLINE_READ_LOCK | |
105 | select ARCH_INLINE_READ_LOCK_BH | |
106 | select ARCH_INLINE_READ_LOCK_IRQ | |
107 | select ARCH_INLINE_READ_LOCK_IRQSAVE | |
108 | select ARCH_INLINE_READ_UNLOCK | |
109 | select ARCH_INLINE_READ_UNLOCK_BH | |
110 | select ARCH_INLINE_READ_UNLOCK_IRQ | |
111 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE | |
112 | select ARCH_INLINE_WRITE_TRYLOCK | |
113 | select ARCH_INLINE_WRITE_LOCK | |
114 | select ARCH_INLINE_WRITE_LOCK_BH | |
115 | select ARCH_INLINE_WRITE_LOCK_IRQ | |
116 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE | |
117 | select ARCH_INLINE_WRITE_UNLOCK | |
118 | select ARCH_INLINE_WRITE_UNLOCK_BH | |
119 | select ARCH_INLINE_WRITE_UNLOCK_IRQ | |
120 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE | |
e80e7813 | 121 | select GENERIC_SMP_IDLE_THREAD |
a6527b92 AMG |
122 | select GENERIC_TIME_VSYSCALL |
123 | select GENERIC_CLOCKEVENTS | |
124 | select KTIME_SCALAR if 32BIT | |
1da177e4 | 125 | |
fca3e357 | 126 | config SCHED_OMIT_FRAME_POINTER |
6f9a3c33 | 127 | def_bool y |
fca3e357 | 128 | |
1da177e4 LT |
129 | source "init/Kconfig" |
130 | ||
dc52ddc0 MH |
131 | source "kernel/Kconfig.freezer" |
132 | ||
1da177e4 LT |
133 | menu "Base setup" |
134 | ||
135 | comment "Processor type and features" | |
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 | |
1da177e4 | 147 | config SMP |
6f9a3c33 MS |
148 | def_bool y |
149 | prompt "Symmetric multi-processing support" | |
1da177e4 LT |
150 | ---help--- |
151 | This enables support for systems with more than one CPU. If you have | |
152 | a system with only one CPU, like most personal computers, say N. If | |
153 | you have a system with more than one CPU, say Y. | |
154 | ||
155 | If you say N here, the kernel will run on single and multiprocessor | |
156 | machines, but will use only one CPU of a multiprocessor machine. If | |
157 | you say Y here, the kernel will run on many, but not all, | |
158 | singleprocessor machines. On a singleprocessor machine, the kernel | |
159 | will run faster if you say N here. | |
160 | ||
03502faa AB |
161 | See also the SMP-HOWTO available at |
162 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
163 | |
164 | Even if you don't know what to do here, say Y. | |
165 | ||
166 | config NR_CPUS | |
167 | int "Maximum number of CPUs (2-64)" | |
168 | range 2 64 | |
169 | depends on SMP | |
057c5cb3 HC |
170 | default "32" if !64BIT |
171 | default "64" if 64BIT | |
1da177e4 LT |
172 | help |
173 | This allows you to specify the maximum number of CPUs which this | |
174 | kernel will support. The maximum supported value is 64 and the | |
175 | minimum value which makes sense is 2. | |
176 | ||
177 | This is purely to save memory - each supported CPU adds | |
178 | approximately sixteen kilobytes to the kernel image. | |
179 | ||
180 | config HOTPLUG_CPU | |
6f9a3c33 MS |
181 | def_bool y |
182 | prompt "Support for hot-pluggable CPUs" | |
1da177e4 LT |
183 | depends on SMP |
184 | select HOTPLUG | |
1da177e4 LT |
185 | help |
186 | Say Y here to be able to turn CPUs off and on. CPUs | |
187 | can be controlled through /sys/devices/system/cpu/cpu#. | |
188 | Say N if you want to disable CPU hotplug. | |
189 | ||
8d11e021 | 190 | config SCHED_MC |
83a24e32 | 191 | def_bool n |
8d11e021 | 192 | |
4cb14bc8 | 193 | config SCHED_BOOK |
6f9a3c33 MS |
194 | def_bool y |
195 | prompt "Book scheduler support" | |
83a24e32 HC |
196 | depends on SMP |
197 | select SCHED_MC | |
4cb14bc8 HC |
198 | help |
199 | Book scheduler support improves the CPU scheduler's decision making | |
200 | when dealing with machines that have several books. | |
201 | ||
1da177e4 | 202 | config MATHEMU |
6f9a3c33 MS |
203 | def_bool y |
204 | prompt "IEEE FPU emulation" | |
1da177e4 LT |
205 | depends on MARCH_G5 |
206 | help | |
207 | This option is required for IEEE compliant floating point arithmetic | |
db81a23d | 208 | on older ESA/390 machines. Say Y unless you know your machine doesn't |
1da177e4 LT |
209 | need this. |
210 | ||
347a8dc3 | 211 | config COMPAT |
6f9a3c33 MS |
212 | def_bool y |
213 | prompt "Kernel support for 31 bit emulation" | |
347a8dc3 | 214 | depends on 64BIT |
5cbeecd6 | 215 | select COMPAT_BINFMT_ELF if BINFMT_ELF |
48b25c43 | 216 | select ARCH_WANT_OLD_COMPAT_IPC |
1da177e4 LT |
217 | help |
218 | Select this option if you want to enable your system kernel to | |
219 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
220 | (and some other stuff like libraries and such) is needed for | |
221 | executing 31 bit applications. It is safe to say "Y". | |
222 | ||
1da177e4 | 223 | config SYSVIPC_COMPAT |
6f9a3c33 | 224 | def_bool y if COMPAT && SYSVIPC |
1da177e4 | 225 | |
1d057720 DH |
226 | config KEYS_COMPAT |
227 | def_bool y if COMPAT && KEYS | |
228 | ||
e65e1fc2 | 229 | config AUDIT_ARCH |
6f9a3c33 | 230 | def_bool y |
e65e1fc2 | 231 | |
05445169 HC |
232 | config HAVE_MARCH_Z900_FEATURES |
233 | def_bool n | |
234 | ||
235 | config HAVE_MARCH_Z990_FEATURES | |
236 | def_bool n | |
237 | select HAVE_MARCH_Z900_FEATURES | |
238 | ||
239 | config HAVE_MARCH_Z9_109_FEATURES | |
240 | def_bool n | |
241 | select HAVE_MARCH_Z990_FEATURES | |
242 | ||
243 | config HAVE_MARCH_Z10_FEATURES | |
244 | def_bool n | |
245 | select HAVE_MARCH_Z9_109_FEATURES | |
246 | ||
247 | config HAVE_MARCH_Z196_FEATURES | |
248 | def_bool n | |
249 | select HAVE_MARCH_Z10_FEATURES | |
250 | ||
1da177e4 LT |
251 | comment "Code generation options" |
252 | ||
253 | choice | |
254 | prompt "Processor type" | |
255 | default MARCH_G5 | |
256 | ||
257 | config MARCH_G5 | |
db81a23d | 258 | bool "System/390 model G5 and G6" |
347a8dc3 | 259 | depends on !64BIT |
1da177e4 LT |
260 | help |
261 | Select this to build a 31 bit kernel that works | |
db81a23d | 262 | on all ESA/390 and z/Architecture machines. |
1da177e4 LT |
263 | |
264 | config MARCH_Z900 | |
db81a23d | 265 | bool "IBM zSeries model z800 and z900" |
05445169 | 266 | select HAVE_MARCH_Z900_FEATURES if 64BIT |
1da177e4 | 267 | help |
db81a23d HC |
268 | Select this to enable optimizations for model z800/z900 (2064 and |
269 | 2066 series). This will enable some optimizations that are not | |
270 | available on older ESA/390 (31 Bit) only CPUs. | |
1da177e4 LT |
271 | |
272 | config MARCH_Z990 | |
db81a23d | 273 | bool "IBM zSeries model z890 and z990" |
05445169 | 274 | select HAVE_MARCH_Z990_FEATURES if 64BIT |
1da177e4 | 275 | help |
db81a23d HC |
276 | Select this to enable optimizations for model z890/z990 (2084 and |
277 | 2086 series). The kernel will be slightly faster but will not work | |
278 | on older machines. | |
1da177e4 | 279 | |
0efa4703 CB |
280 | config MARCH_Z9_109 |
281 | bool "IBM System z9" | |
05445169 | 282 | select HAVE_MARCH_Z9_109_FEATURES if 64BIT |
0efa4703 | 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" | |
05445169 | 290 | select HAVE_MARCH_Z10_FEATURES if 64BIT |
e37f50e1 | 291 | help |
db81a23d HC |
292 | Select this to enable optimizations for IBM System z10 (2097 and |
293 | 2098 series). The kernel will be slightly faster but will not work | |
294 | on older machines. | |
e37f50e1 | 295 | |
f861e405 | 296 | config MARCH_Z196 |
3a81b171 | 297 | bool "IBM zEnterprise 114 and 196" |
05445169 | 298 | select HAVE_MARCH_Z196_FEATURES if 64BIT |
f861e405 | 299 | help |
3a81b171 HC |
300 | Select this to enable optimizations for IBM zEnterprise 114 and 196 |
301 | (2818 and 2817 series). The kernel will be slightly faster but will | |
302 | not work on older machines. | |
f861e405 | 303 | |
1da177e4 LT |
304 | endchoice |
305 | ||
306 | config PACK_STACK | |
6f9a3c33 MS |
307 | def_bool y |
308 | prompt "Pack kernel stack" | |
1da177e4 LT |
309 | help |
310 | This option enables the compiler option -mkernel-backchain if it | |
311 | is available. If the option is available the compiler supports | |
312 | the new stack layout which dramatically reduces the minimum stack | |
313 | frame size. With an old compiler a non-leaf function needs a | |
314 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With | |
315 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit | |
316 | and 24 byte on 64 bit. | |
317 | ||
318 | Say Y if you are unsure. | |
319 | ||
320 | config SMALL_STACK | |
6f9a3c33 MS |
321 | def_bool n |
322 | prompt "Use 8kb for kernel stack instead of 16kb" | |
7f5a8ba6 | 323 | depends on PACK_STACK && 64BIT && !LOCKDEP |
1da177e4 LT |
324 | help |
325 | If you say Y here and the compiler supports the -mkernel-backchain | |
7f5a8ba6 HC |
326 | option the kernel will use a smaller kernel stack size. The reduced |
327 | size is 8kb instead of 16kb. This allows to run more threads on a | |
328 | system and reduces the pressure on the memory management for higher | |
329 | order page allocations. | |
1da177e4 LT |
330 | |
331 | Say N if you are unsure. | |
332 | ||
1da177e4 | 333 | config CHECK_STACK |
6f9a3c33 MS |
334 | def_bool y |
335 | prompt "Detect kernel stack overflow" | |
1da177e4 LT |
336 | help |
337 | This option enables the compiler option -mstack-guard and | |
338 | -mstack-size if they are available. If the compiler supports them | |
339 | it will emit additional code to each function prolog to trigger | |
340 | an illegal operation if the kernel stack is about to overflow. | |
341 | ||
342 | Say N if you are unsure. | |
343 | ||
344 | config STACK_GUARD | |
345 | int "Size of the guard area (128-1024)" | |
346 | range 128 1024 | |
347 | depends on CHECK_STACK | |
348 | default "256" | |
349 | help | |
350 | This allows you to specify the size of the guard area at the lower | |
351 | end of the kernel stack. If the kernel stack points into the guard | |
352 | area on function entry an illegal operation is triggered. The size | |
353 | needs to be a power of 2. Please keep in mind that the size of an | |
354 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
355 | The minimum size for the stack guard should be 256 for 31 bit and | |
356 | 512 for 64 bit. | |
357 | ||
2c190da4 | 358 | config WARN_DYNAMIC_STACK |
6f9a3c33 | 359 | def_bool n |
2c190da4 | 360 | prompt "Emit compiler warnings for function with dynamic stack usage" |
1da177e4 | 361 | help |
2c190da4 JG |
362 | This option enables the compiler option -mwarn-dynamicstack. If the |
363 | compiler supports this options generates warnings for functions | |
364 | that dynamically allocate stack space using alloca. | |
1da177e4 LT |
365 | |
366 | Say N if you are unsure. | |
367 | ||
61d48c2c MS |
368 | comment "Kernel preemption" |
369 | ||
370 | source "kernel/Kconfig.preempt" | |
371 | ||
17f34580 HC |
372 | config ARCH_SPARSEMEM_ENABLE |
373 | def_bool y | |
374 | select SPARSEMEM_VMEMMAP_ENABLE | |
375 | select SPARSEMEM_VMEMMAP | |
148f1678 | 376 | select SPARSEMEM_STATIC if !64BIT |
17f34580 HC |
377 | |
378 | config ARCH_SPARSEMEM_DEFAULT | |
379 | def_bool y | |
380 | ||
97195d6b | 381 | config ARCH_SELECT_MEMORY_MODEL |
6f9a3c33 | 382 | def_bool y |
97195d6b | 383 | |
421c175c | 384 | config ARCH_ENABLE_MEMORY_HOTPLUG |
6f9a3c33 | 385 | def_bool y if SPARSEMEM |
421c175c | 386 | |
7e9238fb GS |
387 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
388 | def_bool y | |
389 | ||
155af2f9 | 390 | config ARCH_HIBERNATION_POSSIBLE |
6f9a3c33 | 391 | def_bool y if 64BIT |
155af2f9 | 392 | |
3f22ab27 DH |
393 | source "mm/Kconfig" |
394 | ||
1da177e4 LT |
395 | comment "I/O subsystem configuration" |
396 | ||
1da177e4 | 397 | config QDIO |
6f9a3c33 MS |
398 | def_tristate y |
399 | prompt "QDIO support" | |
1da177e4 | 400 | ---help--- |
8129ee16 | 401 | This driver provides the Queued Direct I/O base support for |
efca13bc | 402 | IBM System z. |
1da177e4 LT |
403 | |
404 | To compile this driver as a module, choose M here: the | |
405 | module will be called qdio. | |
406 | ||
407 | If unsure, say Y. | |
408 | ||
9d92a7e1 | 409 | config CHSC_SCH |
d9c11b1e | 410 | def_tristate m |
6f9a3c33 | 411 | prompt "Support for CHSC subchannels" |
9d92a7e1 CH |
412 | help |
413 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
414 | is usually present on LPAR only. | |
415 | The driver creates a device /dev/chsc, which may be used to | |
416 | obtain I/O configuration information about the machine and | |
417 | to issue asynchronous chsc commands (DANGEROUS). | |
418 | You will usually only want to use this interface on a special | |
419 | LPAR designated for system management. | |
420 | ||
421 | To compile this driver as a module, choose M here: the | |
422 | module will be called chsc_sch. | |
423 | ||
424 | If unsure, say N. | |
425 | ||
1da177e4 LT |
426 | comment "Misc" |
427 | ||
1da177e4 LT |
428 | source "fs/Kconfig.binfmt" |
429 | ||
684de39b HC |
430 | config FORCE_MAX_ZONEORDER |
431 | int | |
432 | default "9" | |
433 | ||
1da177e4 | 434 | config PFAULT |
6f9a3c33 MS |
435 | def_bool y |
436 | prompt "Pseudo page fault support" | |
1da177e4 LT |
437 | help |
438 | Select this option, if you want to use PFAULT pseudo page fault | |
439 | handling under VM. If running native or in LPAR, this option | |
440 | has no effect. If your VM does not support PFAULT, PAGEEX | |
441 | pseudo page fault handling will be used. | |
442 | Note that VM 4.2 supports PFAULT but has a bug in its | |
443 | implementation that causes some problems. | |
444 | Everybody who wants to run Linux under VM != VM4.2 should select | |
445 | this option. | |
446 | ||
447 | config SHARED_KERNEL | |
6f9a3c33 MS |
448 | def_bool y |
449 | prompt "VM shared kernel support" | |
1da177e4 LT |
450 | help |
451 | Select this option, if you want to share the text segment of the | |
452 | Linux kernel between different VM guests. This reduces memory | |
453 | usage with lots of guests but greatly increases kernel size. | |
9c9c1761 HC |
454 | Also if a kernel was IPL'ed from a shared segment the kexec system |
455 | call will not work. | |
1da177e4 LT |
456 | You should only select this option if you know what you are |
457 | doing and want to exploit this feature. | |
458 | ||
459 | config CMM | |
6f9a3c33 MS |
460 | def_tristate n |
461 | prompt "Cooperative memory management" | |
1da177e4 LT |
462 | help |
463 | Select this option, if you want to enable the kernel interface | |
464 | to reduce the memory size of the system. This is accomplished | |
465 | by allocating pages of memory and put them "on hold". This only | |
466 | makes sense for a system running under VM where the unused pages | |
467 | will be reused by VM for other guest systems. The interface | |
468 | allows an external monitor to balance memory of many systems. | |
469 | Everybody who wants to run Linux under VM should select this | |
470 | option. | |
471 | ||
1da177e4 | 472 | config CMM_IUCV |
6f9a3c33 MS |
473 | def_bool y |
474 | prompt "IUCV special message interface to cooperative memory management" | |
1da177e4 LT |
475 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
476 | help | |
477 | Select this option to enable the special message interface to | |
478 | the cooperative memory management. | |
479 | ||
1da177e4 | 480 | config APPLDATA_BASE |
6f9a3c33 MS |
481 | def_bool n |
482 | prompt "Linux - VM Monitor Stream, base infrastructure" | |
c185b783 | 483 | depends on PROC_FS |
1da177e4 LT |
484 | help |
485 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
486 | monitor records. The monitor records are updated at certain time | |
487 | intervals, once the timer is started. | |
488 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
489 | i.e. enables or disables monitoring on the Linux side. | |
490 | A custom interval value (in seconds) can be written to | |
491 | /proc/appldata/interval. | |
492 | ||
493 | Defaults are 60 seconds interval and timer off. | |
494 | The /proc entries can also be read from, showing the current settings. | |
495 | ||
496 | config APPLDATA_MEM | |
6f9a3c33 MS |
497 | def_tristate m |
498 | prompt "Monitor memory management statistics" | |
62fb2ba3 | 499 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
500 | help |
501 | This provides memory management related data to the Linux - VM Monitor | |
502 | Stream, like paging/swapping rate, memory utilisation, etc. | |
503 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
504 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
505 | on the z/VM side. | |
506 | ||
507 | Default is disabled. | |
508 | The /proc entry can also be read from, showing the current settings. | |
509 | ||
510 | This can also be compiled as a module, which will be called | |
511 | appldata_mem.o. | |
512 | ||
513 | config APPLDATA_OS | |
6f9a3c33 MS |
514 | def_tristate m |
515 | prompt "Monitor OS statistics" | |
1da177e4 LT |
516 | depends on APPLDATA_BASE |
517 | help | |
518 | This provides OS related data to the Linux - VM Monitor Stream, like | |
519 | CPU utilisation, etc. | |
520 | Writing 1 or 0 to /proc/appldata/os 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 | This can also be compiled as a module, which will be called | |
526 | appldata_os.o. | |
527 | ||
528 | config APPLDATA_NET_SUM | |
6f9a3c33 MS |
529 | def_tristate m |
530 | prompt "Monitor overall network statistics" | |
70193af9 | 531 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
532 | help |
533 | This provides network related data to the Linux - VM Monitor Stream, | |
534 | currently there is only a total sum of network I/O statistics, no | |
535 | per-interface data. | |
536 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM | |
537 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
538 | on the z/VM side. | |
539 | ||
540 | Default is disabled. | |
541 | This can also be compiled as a module, which will be called | |
542 | appldata_net_sum.o. | |
543 | ||
61d48c2c MS |
544 | source kernel/Kconfig.hz |
545 | ||
24bbb1fa | 546 | config S390_HYPFS_FS |
6f9a3c33 MS |
547 | def_bool y |
548 | prompt "s390 hypervisor file system support" | |
24bbb1fa | 549 | select SYS_HYPERVISOR |
24bbb1fa MH |
550 | help |
551 | This is a virtual file system intended to provide accounting | |
552 | information in an s390 hypervisor environment. | |
553 | ||
cf13f0ea | 554 | config KEXEC |
6f9a3c33 MS |
555 | def_bool n |
556 | prompt "kexec system call" | |
cf13f0ea HC |
557 | help |
558 | kexec is a system call that implements the ability to shutdown your | |
559 | current kernel, and to start another kernel. It is like a reboot | |
560 | but is independent of hardware/microcode support. | |
561 | ||
60a0c68d MH |
562 | config CRASH_DUMP |
563 | bool "kernel crash dumps" | |
54310a2d | 564 | depends on 64BIT && SMP |
96603b50 | 565 | select KEXEC |
60a0c68d MH |
566 | help |
567 | Generate crash dump after being started by kexec. | |
568 | Crash dump kernels are loaded in the main kernel with kexec-tools | |
569 | into a specially reserved region and then later executed after | |
570 | a crash by kdump/kexec. | |
571 | For more details see Documentation/kdump/kdump.txt | |
572 | ||
411ed322 | 573 | config ZFCPDUMP |
6f9a3c33 MS |
574 | def_bool n |
575 | prompt "zfcpdump support" | |
411ed322 | 576 | select SMP |
411ed322 MH |
577 | help |
578 | Select this option if you want to build an zfcpdump enabled kernel. | |
e403149c | 579 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
411ed322 | 580 | |
fa587743 | 581 | config S390_GUEST |
6f9a3c33 MS |
582 | def_bool y |
583 | prompt "s390 guest support for KVM (EXPERIMENTAL)" | |
fa587743 | 584 | depends on 64BIT && EXPERIMENTAL |
80629b0b | 585 | select VIRTUALIZATION |
fa587743 CO |
586 | select VIRTIO |
587 | select VIRTIO_RING | |
faeba830 | 588 | select VIRTIO_CONSOLE |
fa587743 | 589 | help |
20766c08 CB |
590 | Select this option if you want to run the kernel as a guest under |
591 | the KVM hypervisor. This will add detection for KVM as well as a | |
592 | virtio transport. If KVM is detected, the virtio console will be | |
593 | the default console. | |
bcf5cef7 HC |
594 | |
595 | config SECCOMP | |
6f9a3c33 MS |
596 | def_bool y |
597 | prompt "Enable seccomp to safely compute untrusted bytecode" | |
bcf5cef7 | 598 | depends on PROC_FS |
bcf5cef7 HC |
599 | help |
600 | This kernel feature is useful for number crunching applications | |
601 | that may need to compute untrusted bytecode during their | |
602 | execution. By using pipes or other transports made available to | |
603 | the process as file descriptors supporting the read/write | |
604 | syscalls, it's possible to isolate those applications in | |
605 | their own address space using seccomp. Once seccomp is | |
606 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
607 | and the task is only allowed to execute a few safe syscalls | |
608 | defined by each seccomp mode. | |
609 | ||
610 | If unsure, say Y. | |
611 | ||
1da177e4 LT |
612 | endmenu |
613 | ||
155af2f9 HJP |
614 | menu "Power Management" |
615 | ||
616 | source "kernel/power/Kconfig" | |
617 | ||
618 | endmenu | |
619 | ||
d5950b43 SR |
620 | source "net/Kconfig" |
621 | ||
1da177e4 | 622 | config PCMCIA |
61d48c2c | 623 | def_bool n |
1da177e4 | 624 | |
61d48c2c MS |
625 | config CCW |
626 | def_bool y | |
1da177e4 | 627 | |
61d48c2c | 628 | source "drivers/Kconfig" |
1da177e4 LT |
629 | |
630 | source "fs/Kconfig" | |
631 | ||
1da177e4 LT |
632 | source "arch/s390/Kconfig.debug" |
633 | ||
634 | source "security/Kconfig" | |
635 | ||
636 | source "crypto/Kconfig" | |
637 | ||
638 | source "lib/Kconfig" | |
77b455f1 CB |
639 | |
640 | source "arch/s390/kvm/Kconfig" |