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 | |
c1d7e01d | 121 | select ARCH_WANT_IPC_PARSE_VERSION |
e80e7813 | 122 | select GENERIC_SMP_IDLE_THREAD |
a6527b92 AMG |
123 | select GENERIC_TIME_VSYSCALL |
124 | select GENERIC_CLOCKEVENTS | |
125 | select KTIME_SCALAR if 32BIT | |
1da177e4 | 126 | |
fca3e357 | 127 | config SCHED_OMIT_FRAME_POINTER |
6f9a3c33 | 128 | def_bool y |
fca3e357 | 129 | |
1da177e4 LT |
130 | source "init/Kconfig" |
131 | ||
dc52ddc0 MH |
132 | source "kernel/Kconfig.freezer" |
133 | ||
1da177e4 LT |
134 | menu "Base setup" |
135 | ||
136 | comment "Processor type and features" | |
137 | ||
347a8dc3 | 138 | config 64BIT |
6f9a3c33 MS |
139 | def_bool y |
140 | prompt "64 bit kernel" | |
1da177e4 | 141 | help |
db81a23d | 142 | Select this option if you have an IBM z/Architecture machine |
1da177e4 LT |
143 | and want to use the 64 bit addressing mode. |
144 | ||
d9f7a745 | 145 | config 32BIT |
6f9a3c33 | 146 | def_bool y if !64BIT |
d9f7a745 | 147 | |
1da177e4 | 148 | config SMP |
6f9a3c33 MS |
149 | def_bool y |
150 | prompt "Symmetric multi-processing support" | |
1da177e4 LT |
151 | ---help--- |
152 | This enables support for systems with more than one CPU. If you have | |
153 | a system with only one CPU, like most personal computers, say N. If | |
154 | you have a system with more than one CPU, say Y. | |
155 | ||
156 | If you say N here, the kernel will run on single and multiprocessor | |
157 | machines, but will use only one CPU of a multiprocessor machine. If | |
158 | you say Y here, the kernel will run on many, but not all, | |
159 | singleprocessor machines. On a singleprocessor machine, the kernel | |
160 | will run faster if you say N here. | |
161 | ||
03502faa AB |
162 | See also the SMP-HOWTO available at |
163 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
164 | |
165 | Even if you don't know what to do here, say Y. | |
166 | ||
167 | config NR_CPUS | |
168 | int "Maximum number of CPUs (2-64)" | |
169 | range 2 64 | |
170 | depends on SMP | |
057c5cb3 HC |
171 | default "32" if !64BIT |
172 | default "64" if 64BIT | |
1da177e4 LT |
173 | help |
174 | This allows you to specify the maximum number of CPUs which this | |
175 | kernel will support. The maximum supported value is 64 and the | |
176 | minimum value which makes sense is 2. | |
177 | ||
178 | This is purely to save memory - each supported CPU adds | |
179 | approximately sixteen kilobytes to the kernel image. | |
180 | ||
181 | config HOTPLUG_CPU | |
6f9a3c33 MS |
182 | def_bool y |
183 | prompt "Support for hot-pluggable CPUs" | |
1da177e4 LT |
184 | depends on SMP |
185 | select HOTPLUG | |
1da177e4 LT |
186 | help |
187 | Say Y here to be able to turn CPUs off and on. CPUs | |
188 | can be controlled through /sys/devices/system/cpu/cpu#. | |
189 | Say N if you want to disable CPU hotplug. | |
190 | ||
8d11e021 | 191 | config SCHED_MC |
83a24e32 | 192 | def_bool n |
8d11e021 | 193 | |
4cb14bc8 | 194 | config SCHED_BOOK |
6f9a3c33 MS |
195 | def_bool y |
196 | prompt "Book scheduler support" | |
83a24e32 HC |
197 | depends on SMP |
198 | select SCHED_MC | |
4cb14bc8 HC |
199 | help |
200 | Book scheduler support improves the CPU scheduler's decision making | |
201 | when dealing with machines that have several books. | |
202 | ||
1da177e4 | 203 | config MATHEMU |
6f9a3c33 MS |
204 | def_bool y |
205 | prompt "IEEE FPU emulation" | |
1da177e4 LT |
206 | depends on MARCH_G5 |
207 | help | |
208 | This option is required for IEEE compliant floating point arithmetic | |
db81a23d | 209 | on older ESA/390 machines. Say Y unless you know your machine doesn't |
1da177e4 LT |
210 | need this. |
211 | ||
347a8dc3 | 212 | config COMPAT |
6f9a3c33 MS |
213 | def_bool y |
214 | prompt "Kernel support for 31 bit emulation" | |
347a8dc3 | 215 | depends on 64BIT |
5cbeecd6 | 216 | select COMPAT_BINFMT_ELF if BINFMT_ELF |
48b25c43 | 217 | select ARCH_WANT_OLD_COMPAT_IPC |
1da177e4 LT |
218 | help |
219 | Select this option if you want to enable your system kernel to | |
220 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
221 | (and some other stuff like libraries and such) is needed for | |
222 | executing 31 bit applications. It is safe to say "Y". | |
223 | ||
1da177e4 | 224 | config SYSVIPC_COMPAT |
6f9a3c33 | 225 | def_bool y if COMPAT && SYSVIPC |
1da177e4 | 226 | |
1d057720 DH |
227 | config KEYS_COMPAT |
228 | def_bool y if COMPAT && KEYS | |
229 | ||
e65e1fc2 | 230 | config AUDIT_ARCH |
6f9a3c33 | 231 | def_bool y |
e65e1fc2 | 232 | |
05445169 HC |
233 | config HAVE_MARCH_Z900_FEATURES |
234 | def_bool n | |
235 | ||
236 | config HAVE_MARCH_Z990_FEATURES | |
237 | def_bool n | |
238 | select HAVE_MARCH_Z900_FEATURES | |
239 | ||
240 | config HAVE_MARCH_Z9_109_FEATURES | |
241 | def_bool n | |
242 | select HAVE_MARCH_Z990_FEATURES | |
243 | ||
244 | config HAVE_MARCH_Z10_FEATURES | |
245 | def_bool n | |
246 | select HAVE_MARCH_Z9_109_FEATURES | |
247 | ||
248 | config HAVE_MARCH_Z196_FEATURES | |
249 | def_bool n | |
250 | select HAVE_MARCH_Z10_FEATURES | |
251 | ||
1da177e4 LT |
252 | comment "Code generation options" |
253 | ||
254 | choice | |
255 | prompt "Processor type" | |
256 | default MARCH_G5 | |
257 | ||
258 | config MARCH_G5 | |
db81a23d | 259 | bool "System/390 model G5 and G6" |
347a8dc3 | 260 | depends on !64BIT |
1da177e4 LT |
261 | help |
262 | Select this to build a 31 bit kernel that works | |
db81a23d | 263 | on all ESA/390 and z/Architecture machines. |
1da177e4 LT |
264 | |
265 | config MARCH_Z900 | |
db81a23d | 266 | bool "IBM zSeries model z800 and z900" |
05445169 | 267 | select HAVE_MARCH_Z900_FEATURES if 64BIT |
1da177e4 | 268 | help |
db81a23d HC |
269 | Select this to enable optimizations for model z800/z900 (2064 and |
270 | 2066 series). This will enable some optimizations that are not | |
271 | available on older ESA/390 (31 Bit) only CPUs. | |
1da177e4 LT |
272 | |
273 | config MARCH_Z990 | |
db81a23d | 274 | bool "IBM zSeries model z890 and z990" |
05445169 | 275 | select HAVE_MARCH_Z990_FEATURES if 64BIT |
1da177e4 | 276 | help |
db81a23d HC |
277 | Select this to enable optimizations for model z890/z990 (2084 and |
278 | 2086 series). The kernel will be slightly faster but will not work | |
279 | on older machines. | |
1da177e4 | 280 | |
0efa4703 CB |
281 | config MARCH_Z9_109 |
282 | bool "IBM System z9" | |
05445169 | 283 | select HAVE_MARCH_Z9_109_FEATURES if 64BIT |
0efa4703 | 284 | help |
db81a23d HC |
285 | Select this to enable optimizations for IBM System z9 (2094 and |
286 | 2096 series). The kernel will be slightly faster but will not work | |
287 | on older machines. | |
0efa4703 | 288 | |
e37f50e1 MS |
289 | config MARCH_Z10 |
290 | bool "IBM System z10" | |
05445169 | 291 | select HAVE_MARCH_Z10_FEATURES if 64BIT |
e37f50e1 | 292 | help |
db81a23d HC |
293 | Select this to enable optimizations for IBM System z10 (2097 and |
294 | 2098 series). The kernel will be slightly faster but will not work | |
295 | on older machines. | |
e37f50e1 | 296 | |
f861e405 | 297 | config MARCH_Z196 |
3a81b171 | 298 | bool "IBM zEnterprise 114 and 196" |
05445169 | 299 | select HAVE_MARCH_Z196_FEATURES if 64BIT |
f861e405 | 300 | help |
3a81b171 HC |
301 | Select this to enable optimizations for IBM zEnterprise 114 and 196 |
302 | (2818 and 2817 series). The kernel will be slightly faster but will | |
303 | not work on older machines. | |
f861e405 | 304 | |
1da177e4 LT |
305 | endchoice |
306 | ||
307 | config PACK_STACK | |
6f9a3c33 MS |
308 | def_bool y |
309 | prompt "Pack kernel stack" | |
1da177e4 LT |
310 | help |
311 | This option enables the compiler option -mkernel-backchain if it | |
312 | is available. If the option is available the compiler supports | |
313 | the new stack layout which dramatically reduces the minimum stack | |
314 | frame size. With an old compiler a non-leaf function needs a | |
315 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With | |
316 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit | |
317 | and 24 byte on 64 bit. | |
318 | ||
319 | Say Y if you are unsure. | |
320 | ||
321 | config SMALL_STACK | |
6f9a3c33 MS |
322 | def_bool n |
323 | prompt "Use 8kb for kernel stack instead of 16kb" | |
7f5a8ba6 | 324 | depends on PACK_STACK && 64BIT && !LOCKDEP |
1da177e4 LT |
325 | help |
326 | If you say Y here and the compiler supports the -mkernel-backchain | |
7f5a8ba6 HC |
327 | option the kernel will use a smaller kernel stack size. The reduced |
328 | size is 8kb instead of 16kb. This allows to run more threads on a | |
329 | system and reduces the pressure on the memory management for higher | |
330 | order page allocations. | |
1da177e4 LT |
331 | |
332 | Say N if you are unsure. | |
333 | ||
1da177e4 | 334 | config CHECK_STACK |
6f9a3c33 MS |
335 | def_bool y |
336 | prompt "Detect kernel stack overflow" | |
1da177e4 LT |
337 | help |
338 | This option enables the compiler option -mstack-guard and | |
339 | -mstack-size if they are available. If the compiler supports them | |
340 | it will emit additional code to each function prolog to trigger | |
341 | an illegal operation if the kernel stack is about to overflow. | |
342 | ||
343 | Say N if you are unsure. | |
344 | ||
345 | config STACK_GUARD | |
346 | int "Size of the guard area (128-1024)" | |
347 | range 128 1024 | |
348 | depends on CHECK_STACK | |
349 | default "256" | |
350 | help | |
351 | This allows you to specify the size of the guard area at the lower | |
352 | end of the kernel stack. If the kernel stack points into the guard | |
353 | area on function entry an illegal operation is triggered. The size | |
354 | needs to be a power of 2. Please keep in mind that the size of an | |
355 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
356 | The minimum size for the stack guard should be 256 for 31 bit and | |
357 | 512 for 64 bit. | |
358 | ||
2c190da4 | 359 | config WARN_DYNAMIC_STACK |
6f9a3c33 | 360 | def_bool n |
2c190da4 | 361 | prompt "Emit compiler warnings for function with dynamic stack usage" |
1da177e4 | 362 | help |
2c190da4 JG |
363 | This option enables the compiler option -mwarn-dynamicstack. If the |
364 | compiler supports this options generates warnings for functions | |
365 | that dynamically allocate stack space using alloca. | |
1da177e4 LT |
366 | |
367 | Say N if you are unsure. | |
368 | ||
61d48c2c MS |
369 | comment "Kernel preemption" |
370 | ||
371 | source "kernel/Kconfig.preempt" | |
372 | ||
17f34580 HC |
373 | config ARCH_SPARSEMEM_ENABLE |
374 | def_bool y | |
375 | select SPARSEMEM_VMEMMAP_ENABLE | |
376 | select SPARSEMEM_VMEMMAP | |
148f1678 | 377 | select SPARSEMEM_STATIC if !64BIT |
17f34580 HC |
378 | |
379 | config ARCH_SPARSEMEM_DEFAULT | |
380 | def_bool y | |
381 | ||
97195d6b | 382 | config ARCH_SELECT_MEMORY_MODEL |
6f9a3c33 | 383 | def_bool y |
97195d6b | 384 | |
421c175c | 385 | config ARCH_ENABLE_MEMORY_HOTPLUG |
6f9a3c33 | 386 | def_bool y if SPARSEMEM |
421c175c | 387 | |
7e9238fb GS |
388 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
389 | def_bool y | |
390 | ||
155af2f9 | 391 | config ARCH_HIBERNATION_POSSIBLE |
6f9a3c33 | 392 | def_bool y if 64BIT |
155af2f9 | 393 | |
3f22ab27 DH |
394 | source "mm/Kconfig" |
395 | ||
1da177e4 LT |
396 | comment "I/O subsystem configuration" |
397 | ||
1da177e4 | 398 | config QDIO |
6f9a3c33 MS |
399 | def_tristate y |
400 | prompt "QDIO support" | |
1da177e4 | 401 | ---help--- |
8129ee16 | 402 | This driver provides the Queued Direct I/O base support for |
efca13bc | 403 | IBM System z. |
1da177e4 LT |
404 | |
405 | To compile this driver as a module, choose M here: the | |
406 | module will be called qdio. | |
407 | ||
408 | If unsure, say Y. | |
409 | ||
9d92a7e1 | 410 | config CHSC_SCH |
d9c11b1e | 411 | def_tristate m |
6f9a3c33 | 412 | prompt "Support for CHSC subchannels" |
9d92a7e1 CH |
413 | help |
414 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
415 | is usually present on LPAR only. | |
416 | The driver creates a device /dev/chsc, which may be used to | |
417 | obtain I/O configuration information about the machine and | |
418 | to issue asynchronous chsc commands (DANGEROUS). | |
419 | You will usually only want to use this interface on a special | |
420 | LPAR designated for system management. | |
421 | ||
422 | To compile this driver as a module, choose M here: the | |
423 | module will be called chsc_sch. | |
424 | ||
425 | If unsure, say N. | |
426 | ||
1da177e4 LT |
427 | comment "Misc" |
428 | ||
1da177e4 LT |
429 | source "fs/Kconfig.binfmt" |
430 | ||
684de39b HC |
431 | config FORCE_MAX_ZONEORDER |
432 | int | |
433 | default "9" | |
434 | ||
1da177e4 | 435 | config PFAULT |
6f9a3c33 MS |
436 | def_bool y |
437 | prompt "Pseudo page fault support" | |
1da177e4 LT |
438 | help |
439 | Select this option, if you want to use PFAULT pseudo page fault | |
440 | handling under VM. If running native or in LPAR, this option | |
441 | has no effect. If your VM does not support PFAULT, PAGEEX | |
442 | pseudo page fault handling will be used. | |
443 | Note that VM 4.2 supports PFAULT but has a bug in its | |
444 | implementation that causes some problems. | |
445 | Everybody who wants to run Linux under VM != VM4.2 should select | |
446 | this option. | |
447 | ||
448 | config SHARED_KERNEL | |
6f9a3c33 MS |
449 | def_bool y |
450 | prompt "VM shared kernel support" | |
1da177e4 LT |
451 | help |
452 | Select this option, if you want to share the text segment of the | |
453 | Linux kernel between different VM guests. This reduces memory | |
454 | usage with lots of guests but greatly increases kernel size. | |
9c9c1761 HC |
455 | Also if a kernel was IPL'ed from a shared segment the kexec system |
456 | call will not work. | |
1da177e4 LT |
457 | You should only select this option if you know what you are |
458 | doing and want to exploit this feature. | |
459 | ||
460 | config CMM | |
6f9a3c33 MS |
461 | def_tristate n |
462 | prompt "Cooperative memory management" | |
1da177e4 LT |
463 | help |
464 | Select this option, if you want to enable the kernel interface | |
465 | to reduce the memory size of the system. This is accomplished | |
466 | by allocating pages of memory and put them "on hold". This only | |
467 | makes sense for a system running under VM where the unused pages | |
468 | will be reused by VM for other guest systems. The interface | |
469 | allows an external monitor to balance memory of many systems. | |
470 | Everybody who wants to run Linux under VM should select this | |
471 | option. | |
472 | ||
1da177e4 | 473 | config CMM_IUCV |
6f9a3c33 MS |
474 | def_bool y |
475 | prompt "IUCV special message interface to cooperative memory management" | |
1da177e4 LT |
476 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
477 | help | |
478 | Select this option to enable the special message interface to | |
479 | the cooperative memory management. | |
480 | ||
1da177e4 | 481 | config APPLDATA_BASE |
6f9a3c33 MS |
482 | def_bool n |
483 | prompt "Linux - VM Monitor Stream, base infrastructure" | |
c185b783 | 484 | depends on PROC_FS |
1da177e4 LT |
485 | help |
486 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
487 | monitor records. The monitor records are updated at certain time | |
488 | intervals, once the timer is started. | |
489 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
490 | i.e. enables or disables monitoring on the Linux side. | |
491 | A custom interval value (in seconds) can be written to | |
492 | /proc/appldata/interval. | |
493 | ||
494 | Defaults are 60 seconds interval and timer off. | |
495 | The /proc entries can also be read from, showing the current settings. | |
496 | ||
497 | config APPLDATA_MEM | |
6f9a3c33 MS |
498 | def_tristate m |
499 | prompt "Monitor memory management statistics" | |
62fb2ba3 | 500 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
501 | help |
502 | This provides memory management related data to the Linux - VM Monitor | |
503 | Stream, like paging/swapping rate, memory utilisation, etc. | |
504 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
505 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
506 | on the z/VM side. | |
507 | ||
508 | Default is disabled. | |
509 | The /proc entry can also be read from, showing the current settings. | |
510 | ||
511 | This can also be compiled as a module, which will be called | |
512 | appldata_mem.o. | |
513 | ||
514 | config APPLDATA_OS | |
6f9a3c33 MS |
515 | def_tristate m |
516 | prompt "Monitor OS statistics" | |
1da177e4 LT |
517 | depends on APPLDATA_BASE |
518 | help | |
519 | This provides OS related data to the Linux - VM Monitor Stream, like | |
520 | CPU utilisation, etc. | |
521 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM | |
522 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
523 | on the z/VM side. | |
524 | ||
525 | Default is disabled. | |
526 | This can also be compiled as a module, which will be called | |
527 | appldata_os.o. | |
528 | ||
529 | config APPLDATA_NET_SUM | |
6f9a3c33 MS |
530 | def_tristate m |
531 | prompt "Monitor overall network statistics" | |
70193af9 | 532 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
533 | help |
534 | This provides network related data to the Linux - VM Monitor Stream, | |
535 | currently there is only a total sum of network I/O statistics, no | |
536 | per-interface data. | |
537 | Writing 1 or 0 to /proc/appldata/net_sum 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_net_sum.o. | |
544 | ||
61d48c2c MS |
545 | source kernel/Kconfig.hz |
546 | ||
24bbb1fa | 547 | config S390_HYPFS_FS |
6f9a3c33 MS |
548 | def_bool y |
549 | prompt "s390 hypervisor file system support" | |
24bbb1fa | 550 | select SYS_HYPERVISOR |
24bbb1fa MH |
551 | help |
552 | This is a virtual file system intended to provide accounting | |
553 | information in an s390 hypervisor environment. | |
554 | ||
cf13f0ea | 555 | config KEXEC |
6f9a3c33 MS |
556 | def_bool n |
557 | prompt "kexec system call" | |
cf13f0ea HC |
558 | help |
559 | kexec is a system call that implements the ability to shutdown your | |
560 | current kernel, and to start another kernel. It is like a reboot | |
561 | but is independent of hardware/microcode support. | |
562 | ||
60a0c68d MH |
563 | config CRASH_DUMP |
564 | bool "kernel crash dumps" | |
54310a2d | 565 | depends on 64BIT && SMP |
96603b50 | 566 | select KEXEC |
60a0c68d MH |
567 | help |
568 | Generate crash dump after being started by kexec. | |
569 | Crash dump kernels are loaded in the main kernel with kexec-tools | |
570 | into a specially reserved region and then later executed after | |
571 | a crash by kdump/kexec. | |
572 | For more details see Documentation/kdump/kdump.txt | |
573 | ||
411ed322 | 574 | config ZFCPDUMP |
6f9a3c33 MS |
575 | def_bool n |
576 | prompt "zfcpdump support" | |
411ed322 | 577 | select SMP |
411ed322 MH |
578 | help |
579 | Select this option if you want to build an zfcpdump enabled kernel. | |
e403149c | 580 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
411ed322 | 581 | |
fa587743 | 582 | config S390_GUEST |
6f9a3c33 MS |
583 | def_bool y |
584 | prompt "s390 guest support for KVM (EXPERIMENTAL)" | |
fa587743 | 585 | depends on 64BIT && EXPERIMENTAL |
80629b0b | 586 | select VIRTUALIZATION |
fa587743 CO |
587 | select VIRTIO |
588 | select VIRTIO_RING | |
faeba830 | 589 | select VIRTIO_CONSOLE |
fa587743 | 590 | help |
20766c08 CB |
591 | Select this option if you want to run the kernel as a guest under |
592 | the KVM hypervisor. This will add detection for KVM as well as a | |
593 | virtio transport. If KVM is detected, the virtio console will be | |
594 | the default console. | |
bcf5cef7 HC |
595 | |
596 | config SECCOMP | |
6f9a3c33 MS |
597 | def_bool y |
598 | prompt "Enable seccomp to safely compute untrusted bytecode" | |
bcf5cef7 | 599 | depends on PROC_FS |
bcf5cef7 HC |
600 | help |
601 | This kernel feature is useful for number crunching applications | |
602 | that may need to compute untrusted bytecode during their | |
603 | execution. By using pipes or other transports made available to | |
604 | the process as file descriptors supporting the read/write | |
605 | syscalls, it's possible to isolate those applications in | |
606 | their own address space using seccomp. Once seccomp is | |
607 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
608 | and the task is only allowed to execute a few safe syscalls | |
609 | defined by each seccomp mode. | |
610 | ||
611 | If unsure, say Y. | |
612 | ||
1da177e4 LT |
613 | endmenu |
614 | ||
155af2f9 HJP |
615 | menu "Power Management" |
616 | ||
617 | source "kernel/power/Kconfig" | |
618 | ||
619 | endmenu | |
620 | ||
d5950b43 SR |
621 | source "net/Kconfig" |
622 | ||
1da177e4 | 623 | config PCMCIA |
61d48c2c | 624 | def_bool n |
1da177e4 | 625 | |
61d48c2c MS |
626 | config CCW |
627 | def_bool y | |
1da177e4 | 628 | |
61d48c2c | 629 | source "drivers/Kconfig" |
1da177e4 LT |
630 | |
631 | source "fs/Kconfig" | |
632 | ||
1da177e4 LT |
633 | source "arch/s390/Kconfig.debug" |
634 | ||
635 | source "security/Kconfig" | |
636 | ||
637 | source "crypto/Kconfig" | |
638 | ||
639 | source "lib/Kconfig" | |
77b455f1 CB |
640 | |
641 | source "arch/s390/kvm/Kconfig" |