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 |
3193a98d | 93 | select BUILDTIME_EXTABLE_SORT |
6beb0009 TG |
94 | select ARCH_INLINE_SPIN_TRYLOCK |
95 | select ARCH_INLINE_SPIN_TRYLOCK_BH | |
96 | select ARCH_INLINE_SPIN_LOCK | |
97 | select ARCH_INLINE_SPIN_LOCK_BH | |
98 | select ARCH_INLINE_SPIN_LOCK_IRQ | |
99 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE | |
100 | select ARCH_INLINE_SPIN_UNLOCK | |
101 | select ARCH_INLINE_SPIN_UNLOCK_BH | |
102 | select ARCH_INLINE_SPIN_UNLOCK_IRQ | |
103 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE | |
104 | select ARCH_INLINE_READ_TRYLOCK | |
105 | select ARCH_INLINE_READ_LOCK | |
106 | select ARCH_INLINE_READ_LOCK_BH | |
107 | select ARCH_INLINE_READ_LOCK_IRQ | |
108 | select ARCH_INLINE_READ_LOCK_IRQSAVE | |
109 | select ARCH_INLINE_READ_UNLOCK | |
110 | select ARCH_INLINE_READ_UNLOCK_BH | |
111 | select ARCH_INLINE_READ_UNLOCK_IRQ | |
112 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE | |
113 | select ARCH_INLINE_WRITE_TRYLOCK | |
114 | select ARCH_INLINE_WRITE_LOCK | |
115 | select ARCH_INLINE_WRITE_LOCK_BH | |
116 | select ARCH_INLINE_WRITE_LOCK_IRQ | |
117 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE | |
118 | select ARCH_INLINE_WRITE_UNLOCK | |
119 | select ARCH_INLINE_WRITE_UNLOCK_BH | |
120 | select ARCH_INLINE_WRITE_UNLOCK_IRQ | |
121 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE | |
c1d7e01d | 122 | select ARCH_WANT_IPC_PARSE_VERSION |
e80e7813 | 123 | select GENERIC_SMP_IDLE_THREAD |
a6527b92 AMG |
124 | select GENERIC_TIME_VSYSCALL |
125 | select GENERIC_CLOCKEVENTS | |
126 | select KTIME_SCALAR if 32BIT | |
c63cb468 | 127 | select HAVE_ARCH_SECCOMP_FILTER |
786d35d4 DH |
128 | select HAVE_MOD_ARCH_SPECIFIC |
129 | select MODULES_USE_ELF_RELA | |
1da177e4 | 130 | |
fca3e357 | 131 | config SCHED_OMIT_FRAME_POINTER |
6f9a3c33 | 132 | def_bool y |
fca3e357 | 133 | |
1da177e4 LT |
134 | source "init/Kconfig" |
135 | ||
dc52ddc0 MH |
136 | source "kernel/Kconfig.freezer" |
137 | ||
1da177e4 LT |
138 | menu "Base setup" |
139 | ||
140 | comment "Processor type and features" | |
141 | ||
347a8dc3 | 142 | config 64BIT |
6f9a3c33 MS |
143 | def_bool y |
144 | prompt "64 bit kernel" | |
1da177e4 | 145 | help |
db81a23d | 146 | Select this option if you have an IBM z/Architecture machine |
1da177e4 LT |
147 | and want to use the 64 bit addressing mode. |
148 | ||
d9f7a745 | 149 | config 32BIT |
6f9a3c33 | 150 | def_bool y if !64BIT |
d9f7a745 | 151 | |
1da177e4 | 152 | config SMP |
6f9a3c33 MS |
153 | def_bool y |
154 | prompt "Symmetric multi-processing support" | |
1da177e4 LT |
155 | ---help--- |
156 | This enables support for systems with more than one CPU. If you have | |
157 | a system with only one CPU, like most personal computers, say N. If | |
158 | you have a system with more than one CPU, say Y. | |
159 | ||
160 | If you say N here, the kernel will run on single and multiprocessor | |
161 | machines, but will use only one CPU of a multiprocessor machine. If | |
162 | you say Y here, the kernel will run on many, but not all, | |
163 | singleprocessor machines. On a singleprocessor machine, the kernel | |
164 | will run faster if you say N here. | |
165 | ||
03502faa AB |
166 | See also the SMP-HOWTO available at |
167 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
168 | |
169 | Even if you don't know what to do here, say Y. | |
170 | ||
171 | config NR_CPUS | |
172 | int "Maximum number of CPUs (2-64)" | |
173 | range 2 64 | |
174 | depends on SMP | |
057c5cb3 HC |
175 | default "32" if !64BIT |
176 | default "64" if 64BIT | |
1da177e4 LT |
177 | help |
178 | This allows you to specify the maximum number of CPUs which this | |
179 | kernel will support. The maximum supported value is 64 and the | |
180 | minimum value which makes sense is 2. | |
181 | ||
182 | This is purely to save memory - each supported CPU adds | |
183 | approximately sixteen kilobytes to the kernel image. | |
184 | ||
185 | config HOTPLUG_CPU | |
6f9a3c33 MS |
186 | def_bool y |
187 | prompt "Support for hot-pluggable CPUs" | |
1da177e4 LT |
188 | depends on SMP |
189 | select HOTPLUG | |
1da177e4 LT |
190 | help |
191 | Say Y here to be able to turn CPUs off and on. CPUs | |
192 | can be controlled through /sys/devices/system/cpu/cpu#. | |
193 | Say N if you want to disable CPU hotplug. | |
194 | ||
8d11e021 | 195 | config SCHED_MC |
83a24e32 | 196 | def_bool n |
8d11e021 | 197 | |
4cb14bc8 | 198 | config SCHED_BOOK |
6f9a3c33 MS |
199 | def_bool y |
200 | prompt "Book scheduler support" | |
83a24e32 HC |
201 | depends on SMP |
202 | select SCHED_MC | |
4cb14bc8 HC |
203 | help |
204 | Book scheduler support improves the CPU scheduler's decision making | |
205 | when dealing with machines that have several books. | |
206 | ||
1da177e4 | 207 | config MATHEMU |
6f9a3c33 MS |
208 | def_bool y |
209 | prompt "IEEE FPU emulation" | |
1da177e4 LT |
210 | depends on MARCH_G5 |
211 | help | |
212 | This option is required for IEEE compliant floating point arithmetic | |
db81a23d | 213 | on older ESA/390 machines. Say Y unless you know your machine doesn't |
1da177e4 LT |
214 | need this. |
215 | ||
347a8dc3 | 216 | config COMPAT |
6f9a3c33 MS |
217 | def_bool y |
218 | prompt "Kernel support for 31 bit emulation" | |
347a8dc3 | 219 | depends on 64BIT |
5cbeecd6 | 220 | select COMPAT_BINFMT_ELF if BINFMT_ELF |
48b25c43 | 221 | select ARCH_WANT_OLD_COMPAT_IPC |
1da177e4 LT |
222 | help |
223 | Select this option if you want to enable your system kernel to | |
224 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
225 | (and some other stuff like libraries and such) is needed for | |
226 | executing 31 bit applications. It is safe to say "Y". | |
227 | ||
1da177e4 | 228 | config SYSVIPC_COMPAT |
6f9a3c33 | 229 | def_bool y if COMPAT && SYSVIPC |
1da177e4 | 230 | |
1d057720 DH |
231 | config KEYS_COMPAT |
232 | def_bool y if COMPAT && KEYS | |
233 | ||
e65e1fc2 | 234 | config AUDIT_ARCH |
6f9a3c33 | 235 | def_bool y |
e65e1fc2 | 236 | |
05445169 HC |
237 | config HAVE_MARCH_Z900_FEATURES |
238 | def_bool n | |
239 | ||
240 | config HAVE_MARCH_Z990_FEATURES | |
241 | def_bool n | |
242 | select HAVE_MARCH_Z900_FEATURES | |
243 | ||
244 | config HAVE_MARCH_Z9_109_FEATURES | |
245 | def_bool n | |
246 | select HAVE_MARCH_Z990_FEATURES | |
247 | ||
248 | config HAVE_MARCH_Z10_FEATURES | |
249 | def_bool n | |
250 | select HAVE_MARCH_Z9_109_FEATURES | |
251 | ||
252 | config HAVE_MARCH_Z196_FEATURES | |
253 | def_bool n | |
254 | select HAVE_MARCH_Z10_FEATURES | |
255 | ||
1da177e4 LT |
256 | comment "Code generation options" |
257 | ||
258 | choice | |
259 | prompt "Processor type" | |
260 | default MARCH_G5 | |
261 | ||
262 | config MARCH_G5 | |
db81a23d | 263 | bool "System/390 model G5 and G6" |
347a8dc3 | 264 | depends on !64BIT |
1da177e4 LT |
265 | help |
266 | Select this to build a 31 bit kernel that works | |
db81a23d | 267 | on all ESA/390 and z/Architecture machines. |
1da177e4 LT |
268 | |
269 | config MARCH_Z900 | |
db81a23d | 270 | bool "IBM zSeries model z800 and z900" |
05445169 | 271 | select HAVE_MARCH_Z900_FEATURES if 64BIT |
1da177e4 | 272 | help |
db81a23d HC |
273 | Select this to enable optimizations for model z800/z900 (2064 and |
274 | 2066 series). This will enable some optimizations that are not | |
275 | available on older ESA/390 (31 Bit) only CPUs. | |
1da177e4 LT |
276 | |
277 | config MARCH_Z990 | |
db81a23d | 278 | bool "IBM zSeries model z890 and z990" |
05445169 | 279 | select HAVE_MARCH_Z990_FEATURES if 64BIT |
1da177e4 | 280 | help |
db81a23d HC |
281 | Select this to enable optimizations for model z890/z990 (2084 and |
282 | 2086 series). The kernel will be slightly faster but will not work | |
283 | on older machines. | |
1da177e4 | 284 | |
0efa4703 CB |
285 | config MARCH_Z9_109 |
286 | bool "IBM System z9" | |
05445169 | 287 | select HAVE_MARCH_Z9_109_FEATURES if 64BIT |
0efa4703 | 288 | help |
db81a23d HC |
289 | Select this to enable optimizations for IBM System z9 (2094 and |
290 | 2096 series). The kernel will be slightly faster but will not work | |
291 | on older machines. | |
0efa4703 | 292 | |
e37f50e1 MS |
293 | config MARCH_Z10 |
294 | bool "IBM System z10" | |
05445169 | 295 | select HAVE_MARCH_Z10_FEATURES if 64BIT |
e37f50e1 | 296 | help |
db81a23d HC |
297 | Select this to enable optimizations for IBM System z10 (2097 and |
298 | 2098 series). The kernel will be slightly faster but will not work | |
299 | on older machines. | |
e37f50e1 | 300 | |
f861e405 | 301 | config MARCH_Z196 |
3a81b171 | 302 | bool "IBM zEnterprise 114 and 196" |
05445169 | 303 | select HAVE_MARCH_Z196_FEATURES if 64BIT |
f861e405 | 304 | help |
3a81b171 HC |
305 | Select this to enable optimizations for IBM zEnterprise 114 and 196 |
306 | (2818 and 2817 series). The kernel will be slightly faster but will | |
307 | not work on older machines. | |
f861e405 | 308 | |
1da177e4 LT |
309 | endchoice |
310 | ||
311 | config PACK_STACK | |
6f9a3c33 MS |
312 | def_bool y |
313 | prompt "Pack kernel stack" | |
1da177e4 LT |
314 | help |
315 | This option enables the compiler option -mkernel-backchain if it | |
316 | is available. If the option is available the compiler supports | |
317 | the new stack layout which dramatically reduces the minimum stack | |
318 | frame size. With an old compiler a non-leaf function needs a | |
319 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With | |
320 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit | |
321 | and 24 byte on 64 bit. | |
322 | ||
323 | Say Y if you are unsure. | |
324 | ||
325 | config SMALL_STACK | |
6f9a3c33 MS |
326 | def_bool n |
327 | prompt "Use 8kb for kernel stack instead of 16kb" | |
7f5a8ba6 | 328 | depends on PACK_STACK && 64BIT && !LOCKDEP |
1da177e4 LT |
329 | help |
330 | If you say Y here and the compiler supports the -mkernel-backchain | |
7f5a8ba6 HC |
331 | option the kernel will use a smaller kernel stack size. The reduced |
332 | size is 8kb instead of 16kb. This allows to run more threads on a | |
333 | system and reduces the pressure on the memory management for higher | |
334 | order page allocations. | |
1da177e4 LT |
335 | |
336 | Say N if you are unsure. | |
337 | ||
1da177e4 | 338 | config CHECK_STACK |
6f9a3c33 MS |
339 | def_bool y |
340 | prompt "Detect kernel stack overflow" | |
1da177e4 LT |
341 | help |
342 | This option enables the compiler option -mstack-guard and | |
343 | -mstack-size if they are available. If the compiler supports them | |
344 | it will emit additional code to each function prolog to trigger | |
345 | an illegal operation if the kernel stack is about to overflow. | |
346 | ||
347 | Say N if you are unsure. | |
348 | ||
349 | config STACK_GUARD | |
350 | int "Size of the guard area (128-1024)" | |
351 | range 128 1024 | |
352 | depends on CHECK_STACK | |
353 | default "256" | |
354 | help | |
355 | This allows you to specify the size of the guard area at the lower | |
356 | end of the kernel stack. If the kernel stack points into the guard | |
357 | area on function entry an illegal operation is triggered. The size | |
358 | needs to be a power of 2. Please keep in mind that the size of an | |
359 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
360 | The minimum size for the stack guard should be 256 for 31 bit and | |
361 | 512 for 64 bit. | |
362 | ||
2c190da4 | 363 | config WARN_DYNAMIC_STACK |
6f9a3c33 | 364 | def_bool n |
2c190da4 | 365 | prompt "Emit compiler warnings for function with dynamic stack usage" |
1da177e4 | 366 | help |
2c190da4 JG |
367 | This option enables the compiler option -mwarn-dynamicstack. If the |
368 | compiler supports this options generates warnings for functions | |
369 | that dynamically allocate stack space using alloca. | |
1da177e4 LT |
370 | |
371 | Say N if you are unsure. | |
372 | ||
61d48c2c MS |
373 | comment "Kernel preemption" |
374 | ||
375 | source "kernel/Kconfig.preempt" | |
376 | ||
17f34580 HC |
377 | config ARCH_SPARSEMEM_ENABLE |
378 | def_bool y | |
379 | select SPARSEMEM_VMEMMAP_ENABLE | |
380 | select SPARSEMEM_VMEMMAP | |
148f1678 | 381 | select SPARSEMEM_STATIC if !64BIT |
17f34580 HC |
382 | |
383 | config ARCH_SPARSEMEM_DEFAULT | |
384 | def_bool y | |
385 | ||
97195d6b | 386 | config ARCH_SELECT_MEMORY_MODEL |
6f9a3c33 | 387 | def_bool y |
97195d6b | 388 | |
421c175c | 389 | config ARCH_ENABLE_MEMORY_HOTPLUG |
6f9a3c33 | 390 | def_bool y if SPARSEMEM |
421c175c | 391 | |
7e9238fb GS |
392 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
393 | def_bool y | |
394 | ||
155af2f9 | 395 | config ARCH_HIBERNATION_POSSIBLE |
6f9a3c33 | 396 | def_bool y if 64BIT |
155af2f9 | 397 | |
3f22ab27 DH |
398 | source "mm/Kconfig" |
399 | ||
1da177e4 LT |
400 | comment "I/O subsystem configuration" |
401 | ||
1da177e4 | 402 | config QDIO |
6f9a3c33 MS |
403 | def_tristate y |
404 | prompt "QDIO support" | |
1da177e4 | 405 | ---help--- |
8129ee16 | 406 | This driver provides the Queued Direct I/O base support for |
efca13bc | 407 | IBM System z. |
1da177e4 LT |
408 | |
409 | To compile this driver as a module, choose M here: the | |
410 | module will be called qdio. | |
411 | ||
412 | If unsure, say Y. | |
413 | ||
9d92a7e1 | 414 | config CHSC_SCH |
d9c11b1e | 415 | def_tristate m |
6f9a3c33 | 416 | prompt "Support for CHSC subchannels" |
9d92a7e1 CH |
417 | help |
418 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
419 | is usually present on LPAR only. | |
420 | The driver creates a device /dev/chsc, which may be used to | |
421 | obtain I/O configuration information about the machine and | |
422 | to issue asynchronous chsc commands (DANGEROUS). | |
423 | You will usually only want to use this interface on a special | |
424 | LPAR designated for system management. | |
425 | ||
426 | To compile this driver as a module, choose M here: the | |
427 | module will be called chsc_sch. | |
428 | ||
429 | If unsure, say N. | |
430 | ||
1da177e4 LT |
431 | comment "Misc" |
432 | ||
1da177e4 LT |
433 | source "fs/Kconfig.binfmt" |
434 | ||
684de39b HC |
435 | config FORCE_MAX_ZONEORDER |
436 | int | |
437 | default "9" | |
438 | ||
1da177e4 | 439 | config PFAULT |
6f9a3c33 MS |
440 | def_bool y |
441 | prompt "Pseudo page fault support" | |
1da177e4 LT |
442 | help |
443 | Select this option, if you want to use PFAULT pseudo page fault | |
444 | handling under VM. If running native or in LPAR, this option | |
445 | has no effect. If your VM does not support PFAULT, PAGEEX | |
446 | pseudo page fault handling will be used. | |
447 | Note that VM 4.2 supports PFAULT but has a bug in its | |
448 | implementation that causes some problems. | |
449 | Everybody who wants to run Linux under VM != VM4.2 should select | |
450 | this option. | |
451 | ||
452 | config SHARED_KERNEL | |
6f9a3c33 MS |
453 | def_bool y |
454 | prompt "VM shared kernel support" | |
1da177e4 LT |
455 | help |
456 | Select this option, if you want to share the text segment of the | |
457 | Linux kernel between different VM guests. This reduces memory | |
458 | usage with lots of guests but greatly increases kernel size. | |
9c9c1761 HC |
459 | Also if a kernel was IPL'ed from a shared segment the kexec system |
460 | call will not work. | |
1da177e4 LT |
461 | You should only select this option if you know what you are |
462 | doing and want to exploit this feature. | |
463 | ||
464 | config CMM | |
6f9a3c33 MS |
465 | def_tristate n |
466 | prompt "Cooperative memory management" | |
1da177e4 LT |
467 | help |
468 | Select this option, if you want to enable the kernel interface | |
469 | to reduce the memory size of the system. This is accomplished | |
470 | by allocating pages of memory and put them "on hold". This only | |
471 | makes sense for a system running under VM where the unused pages | |
472 | will be reused by VM for other guest systems. The interface | |
473 | allows an external monitor to balance memory of many systems. | |
474 | Everybody who wants to run Linux under VM should select this | |
475 | option. | |
476 | ||
1da177e4 | 477 | config CMM_IUCV |
6f9a3c33 MS |
478 | def_bool y |
479 | prompt "IUCV special message interface to cooperative memory management" | |
1da177e4 LT |
480 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
481 | help | |
482 | Select this option to enable the special message interface to | |
483 | the cooperative memory management. | |
484 | ||
1da177e4 | 485 | config APPLDATA_BASE |
6f9a3c33 MS |
486 | def_bool n |
487 | prompt "Linux - VM Monitor Stream, base infrastructure" | |
c185b783 | 488 | depends on PROC_FS |
1da177e4 LT |
489 | help |
490 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
491 | monitor records. The monitor records are updated at certain time | |
492 | intervals, once the timer is started. | |
493 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
494 | i.e. enables or disables monitoring on the Linux side. | |
495 | A custom interval value (in seconds) can be written to | |
496 | /proc/appldata/interval. | |
497 | ||
498 | Defaults are 60 seconds interval and timer off. | |
499 | The /proc entries can also be read from, showing the current settings. | |
500 | ||
501 | config APPLDATA_MEM | |
6f9a3c33 MS |
502 | def_tristate m |
503 | prompt "Monitor memory management statistics" | |
62fb2ba3 | 504 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
505 | help |
506 | This provides memory management related data to the Linux - VM Monitor | |
507 | Stream, like paging/swapping rate, memory utilisation, etc. | |
508 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
509 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
510 | on the z/VM side. | |
511 | ||
512 | Default is disabled. | |
513 | The /proc entry can also be read from, showing the current settings. | |
514 | ||
515 | This can also be compiled as a module, which will be called | |
516 | appldata_mem.o. | |
517 | ||
518 | config APPLDATA_OS | |
6f9a3c33 MS |
519 | def_tristate m |
520 | prompt "Monitor OS statistics" | |
1da177e4 LT |
521 | depends on APPLDATA_BASE |
522 | help | |
523 | This provides OS related data to the Linux - VM Monitor Stream, like | |
524 | CPU utilisation, etc. | |
525 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM | |
526 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
527 | on the z/VM side. | |
528 | ||
529 | Default is disabled. | |
530 | This can also be compiled as a module, which will be called | |
531 | appldata_os.o. | |
532 | ||
533 | config APPLDATA_NET_SUM | |
6f9a3c33 MS |
534 | def_tristate m |
535 | prompt "Monitor overall network statistics" | |
70193af9 | 536 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
537 | help |
538 | This provides network related data to the Linux - VM Monitor Stream, | |
539 | currently there is only a total sum of network I/O statistics, no | |
540 | per-interface data. | |
541 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM | |
542 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
543 | on the z/VM side. | |
544 | ||
545 | Default is disabled. | |
546 | This can also be compiled as a module, which will be called | |
547 | appldata_net_sum.o. | |
548 | ||
61d48c2c MS |
549 | source kernel/Kconfig.hz |
550 | ||
24bbb1fa | 551 | config S390_HYPFS_FS |
6f9a3c33 MS |
552 | def_bool y |
553 | prompt "s390 hypervisor file system support" | |
24bbb1fa | 554 | select SYS_HYPERVISOR |
24bbb1fa MH |
555 | help |
556 | This is a virtual file system intended to provide accounting | |
557 | information in an s390 hypervisor environment. | |
558 | ||
cf13f0ea | 559 | config KEXEC |
6f9a3c33 MS |
560 | def_bool n |
561 | prompt "kexec system call" | |
cf13f0ea HC |
562 | help |
563 | kexec is a system call that implements the ability to shutdown your | |
564 | current kernel, and to start another kernel. It is like a reboot | |
565 | but is independent of hardware/microcode support. | |
566 | ||
60a0c68d MH |
567 | config CRASH_DUMP |
568 | bool "kernel crash dumps" | |
54310a2d | 569 | depends on 64BIT && SMP |
96603b50 | 570 | select KEXEC |
60a0c68d MH |
571 | help |
572 | Generate crash dump after being started by kexec. | |
573 | Crash dump kernels are loaded in the main kernel with kexec-tools | |
574 | into a specially reserved region and then later executed after | |
575 | a crash by kdump/kexec. | |
576 | For more details see Documentation/kdump/kdump.txt | |
577 | ||
411ed322 | 578 | config ZFCPDUMP |
6f9a3c33 MS |
579 | def_bool n |
580 | prompt "zfcpdump support" | |
411ed322 | 581 | select SMP |
411ed322 MH |
582 | help |
583 | Select this option if you want to build an zfcpdump enabled kernel. | |
e403149c | 584 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
411ed322 | 585 | |
fa587743 | 586 | config S390_GUEST |
6f9a3c33 MS |
587 | def_bool y |
588 | prompt "s390 guest support for KVM (EXPERIMENTAL)" | |
fa587743 | 589 | depends on 64BIT && EXPERIMENTAL |
80629b0b | 590 | select VIRTUALIZATION |
fa587743 CO |
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" |