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Commit | Line | Data |
---|---|---|
1da177e4 | 1 | config MMU |
61d48c2c | 2 | def_bool y |
1da177e4 | 3 | |
66701b14 | 4 | config ZONE_DMA |
6f9a3c33 | 5 | def_bool y if 64BIT |
66701b14 | 6 | |
2b105ff9 | 7 | config LOCKDEP_SUPPORT |
61d48c2c | 8 | def_bool y |
2b105ff9 | 9 | |
5bdc9b44 | 10 | config STACKTRACE_SUPPORT |
61d48c2c | 11 | def_bool y |
5bdc9b44 | 12 | |
a3afe70b HC |
13 | config HAVE_LATENCYTOP_SUPPORT |
14 | def_bool y | |
15 | ||
1da177e4 LT |
16 | config RWSEM_GENERIC_SPINLOCK |
17 | bool | |
18 | ||
19 | config RWSEM_XCHGADD_ALGORITHM | |
61d48c2c | 20 | def_bool y |
1da177e4 | 21 | |
f0d1b0b3 | 22 | config ARCH_HAS_ILOG2_U32 |
6f9a3c33 | 23 | def_bool n |
f0d1b0b3 DH |
24 | |
25 | config ARCH_HAS_ILOG2_U64 | |
6f9a3c33 | 26 | def_bool n |
f0d1b0b3 | 27 | |
7e33db4e | 28 | config GENERIC_HWEIGHT |
61d48c2c | 29 | def_bool y |
7e33db4e | 30 | |
b020632e MS |
31 | config GENERIC_TIME_VSYSCALL |
32 | def_bool y | |
33 | ||
5a62b192 HC |
34 | config GENERIC_CLOCKEVENTS |
35 | def_bool y | |
36 | ||
c0007f1a | 37 | config GENERIC_BUG |
6f9a3c33 | 38 | def_bool y if BUG |
c0007f1a | 39 | |
52499f40 HC |
40 | config GENERIC_BUG_RELATIVE_POINTERS |
41 | def_bool y | |
42 | ||
23db764d | 43 | config NO_IOMEM |
5ea81769 AV |
44 | def_bool y |
45 | ||
411f0f3e HC |
46 | config NO_DMA |
47 | def_bool y | |
48 | ||
eca577ef FT |
49 | config ARCH_DMA_ADDR_T_64BIT |
50 | def_bool 64BIT | |
51 | ||
b6b40c53 | 52 | config GENERIC_LOCKBREAK |
6f9a3c33 | 53 | def_bool y if SMP && PREEMPT |
b6b40c53 | 54 | |
402b0862 | 55 | config PGSTE |
6f9a3c33 | 56 | def_bool y if KVM |
402b0862 | 57 | |
c185b783 MS |
58 | config VIRT_CPU_ACCOUNTING |
59 | def_bool y | |
60 | ||
6a11f75b AM |
61 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
62 | def_bool y | |
63 | ||
347a8dc3 | 64 | config S390 |
61d48c2c | 65 | def_bool y |
ca9fc75a | 66 | select USE_GENERIC_SMP_HELPERS if SMP |
ed6bb619 | 67 | select HAVE_SYSCALL_WRAPPERS |
5d360a75 | 68 | select HAVE_FUNCTION_TRACER |
8b4488f8 | 69 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
dfd9f7ab | 70 | select HAVE_FTRACE_MCOUNT_RECORD |
b25c477b | 71 | select HAVE_C_RECORDMCOUNT |
66700001 | 72 | select HAVE_SYSCALL_TRACEPOINTS |
dfd9f7ab | 73 | select HAVE_DYNAMIC_FTRACE |
88dbd203 | 74 | select HAVE_FUNCTION_GRAPH_TRACER |
952974ac | 75 | select HAVE_REGS_AND_STACK_ACCESS_API |
42d4b839 | 76 | select HAVE_OPROFILE |
3f550096 | 77 | select HAVE_KPROBES |
9edddaa2 | 78 | select HAVE_KRETPROBES |
77b455f1 | 79 | select HAVE_KVM if 64BIT |
753c4dd6 | 80 | select HAVE_ARCH_TRACEHOOK |
98a79d6a | 81 | select INIT_ALL_POSSIBLE |
e360adbe | 82 | select HAVE_IRQ_WORK |
cdd6c482 | 83 | select HAVE_PERF_EVENTS |
1844c9bc MS |
84 | select HAVE_KERNEL_GZIP |
85 | select HAVE_KERNEL_BZIP2 | |
86 | select HAVE_KERNEL_LZMA | |
cdf56649 | 87 | select HAVE_KERNEL_LZO |
80217147 | 88 | select HAVE_GET_USER_PAGES_FAST |
34b133f8 | 89 | select HAVE_ARCH_MUTEX_CPU_RELAX |
6beb0009 TG |
90 | select ARCH_INLINE_SPIN_TRYLOCK |
91 | select ARCH_INLINE_SPIN_TRYLOCK_BH | |
92 | select ARCH_INLINE_SPIN_LOCK | |
93 | select ARCH_INLINE_SPIN_LOCK_BH | |
94 | select ARCH_INLINE_SPIN_LOCK_IRQ | |
95 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE | |
96 | select ARCH_INLINE_SPIN_UNLOCK | |
97 | select ARCH_INLINE_SPIN_UNLOCK_BH | |
98 | select ARCH_INLINE_SPIN_UNLOCK_IRQ | |
99 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE | |
100 | select ARCH_INLINE_READ_TRYLOCK | |
101 | select ARCH_INLINE_READ_LOCK | |
102 | select ARCH_INLINE_READ_LOCK_BH | |
103 | select ARCH_INLINE_READ_LOCK_IRQ | |
104 | select ARCH_INLINE_READ_LOCK_IRQSAVE | |
105 | select ARCH_INLINE_READ_UNLOCK | |
106 | select ARCH_INLINE_READ_UNLOCK_BH | |
107 | select ARCH_INLINE_READ_UNLOCK_IRQ | |
108 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE | |
109 | select ARCH_INLINE_WRITE_TRYLOCK | |
110 | select ARCH_INLINE_WRITE_LOCK | |
111 | select ARCH_INLINE_WRITE_LOCK_BH | |
112 | select ARCH_INLINE_WRITE_LOCK_IRQ | |
113 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE | |
114 | select ARCH_INLINE_WRITE_UNLOCK | |
115 | select ARCH_INLINE_WRITE_UNLOCK_BH | |
116 | select ARCH_INLINE_WRITE_UNLOCK_IRQ | |
117 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE | |
1da177e4 | 118 | |
fca3e357 | 119 | config SCHED_OMIT_FRAME_POINTER |
6f9a3c33 | 120 | def_bool y |
fca3e357 | 121 | |
1da177e4 LT |
122 | source "init/Kconfig" |
123 | ||
dc52ddc0 MH |
124 | source "kernel/Kconfig.freezer" |
125 | ||
1da177e4 LT |
126 | menu "Base setup" |
127 | ||
128 | comment "Processor type and features" | |
129 | ||
5a62b192 HC |
130 | source "kernel/time/Kconfig" |
131 | ||
347a8dc3 | 132 | config 64BIT |
6f9a3c33 MS |
133 | def_bool y |
134 | prompt "64 bit kernel" | |
1da177e4 | 135 | help |
db81a23d | 136 | Select this option if you have an IBM z/Architecture machine |
1da177e4 LT |
137 | and want to use the 64 bit addressing mode. |
138 | ||
d9f7a745 | 139 | config 32BIT |
6f9a3c33 | 140 | def_bool y if !64BIT |
d9f7a745 | 141 | |
07606309 MS |
142 | config KTIME_SCALAR |
143 | def_bool 32BIT | |
144 | ||
1da177e4 | 145 | config SMP |
6f9a3c33 MS |
146 | def_bool y |
147 | prompt "Symmetric multi-processing support" | |
1da177e4 LT |
148 | ---help--- |
149 | This enables support for systems with more than one CPU. If you have | |
150 | a system with only one CPU, like most personal computers, say N. If | |
151 | you have a system with more than one CPU, say Y. | |
152 | ||
153 | If you say N here, the kernel will run on single and multiprocessor | |
154 | machines, but will use only one CPU of a multiprocessor machine. If | |
155 | you say Y here, the kernel will run on many, but not all, | |
156 | singleprocessor machines. On a singleprocessor machine, the kernel | |
157 | will run faster if you say N here. | |
158 | ||
03502faa AB |
159 | See also the SMP-HOWTO available at |
160 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
161 | |
162 | Even if you don't know what to do here, say Y. | |
163 | ||
164 | config NR_CPUS | |
165 | int "Maximum number of CPUs (2-64)" | |
166 | range 2 64 | |
167 | depends on SMP | |
057c5cb3 HC |
168 | default "32" if !64BIT |
169 | default "64" if 64BIT | |
1da177e4 LT |
170 | help |
171 | This allows you to specify the maximum number of CPUs which this | |
172 | kernel will support. The maximum supported value is 64 and the | |
173 | minimum value which makes sense is 2. | |
174 | ||
175 | This is purely to save memory - each supported CPU adds | |
176 | approximately sixteen kilobytes to the kernel image. | |
177 | ||
178 | config HOTPLUG_CPU | |
6f9a3c33 MS |
179 | def_bool y |
180 | prompt "Support for hot-pluggable CPUs" | |
1da177e4 LT |
181 | depends on SMP |
182 | select HOTPLUG | |
1da177e4 LT |
183 | help |
184 | Say Y here to be able to turn CPUs off and on. CPUs | |
185 | can be controlled through /sys/devices/system/cpu/cpu#. | |
186 | Say N if you want to disable CPU hotplug. | |
187 | ||
8d11e021 HC |
188 | config SCHED_MC |
189 | def_bool y | |
190 | prompt "Multi-core scheduler support" | |
191 | depends on SMP | |
192 | help | |
193 | Multi-core scheduler support improves the CPU scheduler's decision | |
194 | making when dealing with multi-core CPU chips at a cost of slightly | |
195 | increased overhead in some places. | |
196 | ||
4cb14bc8 | 197 | config SCHED_BOOK |
6f9a3c33 MS |
198 | def_bool y |
199 | prompt "Book scheduler support" | |
8d11e021 | 200 | depends on SMP && SCHED_MC |
4cb14bc8 HC |
201 | help |
202 | Book scheduler support improves the CPU scheduler's decision making | |
203 | when dealing with machines that have several books. | |
204 | ||
1da177e4 | 205 | config MATHEMU |
6f9a3c33 MS |
206 | def_bool y |
207 | prompt "IEEE FPU emulation" | |
1da177e4 LT |
208 | depends on MARCH_G5 |
209 | help | |
210 | This option is required for IEEE compliant floating point arithmetic | |
db81a23d | 211 | on older ESA/390 machines. Say Y unless you know your machine doesn't |
1da177e4 LT |
212 | need this. |
213 | ||
347a8dc3 | 214 | config COMPAT |
6f9a3c33 MS |
215 | def_bool y |
216 | prompt "Kernel support for 31 bit emulation" | |
347a8dc3 | 217 | depends on 64BIT |
63506c41 | 218 | select COMPAT_BINFMT_ELF |
1da177e4 LT |
219 | help |
220 | Select this option if you want to enable your system kernel to | |
221 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
222 | (and some other stuff like libraries and such) is needed for | |
223 | executing 31 bit applications. It is safe to say "Y". | |
224 | ||
1da177e4 | 225 | config SYSVIPC_COMPAT |
6f9a3c33 | 226 | def_bool y if COMPAT && SYSVIPC |
1da177e4 | 227 | |
e65e1fc2 | 228 | config AUDIT_ARCH |
6f9a3c33 | 229 | def_bool y |
e65e1fc2 | 230 | |
c1821c2e | 231 | config S390_EXEC_PROTECT |
6f9a3c33 MS |
232 | def_bool y |
233 | prompt "Data execute protection" | |
c1821c2e GS |
234 | help |
235 | This option allows to enable a buffer overflow protection for user | |
236 | space programs and it also selects the addressing mode option above. | |
237 | The kernel parameter noexec=on will enable this feature and also | |
238 | switch the addressing modes, default is disabled. Enabling this (via | |
db81a23d HC |
239 | kernel parameter) on machines earlier than IBM System z9 this will |
240 | reduce system performance. | |
c1821c2e | 241 | |
1da177e4 LT |
242 | comment "Code generation options" |
243 | ||
244 | choice | |
245 | prompt "Processor type" | |
246 | default MARCH_G5 | |
247 | ||
248 | config MARCH_G5 | |
db81a23d | 249 | bool "System/390 model G5 and G6" |
347a8dc3 | 250 | depends on !64BIT |
1da177e4 LT |
251 | help |
252 | Select this to build a 31 bit kernel that works | |
db81a23d | 253 | on all ESA/390 and z/Architecture machines. |
1da177e4 LT |
254 | |
255 | config MARCH_Z900 | |
db81a23d | 256 | bool "IBM zSeries model z800 and z900" |
1da177e4 | 257 | help |
db81a23d HC |
258 | Select this to enable optimizations for model z800/z900 (2064 and |
259 | 2066 series). This will enable some optimizations that are not | |
260 | available on older ESA/390 (31 Bit) only CPUs. | |
1da177e4 LT |
261 | |
262 | config MARCH_Z990 | |
db81a23d | 263 | bool "IBM zSeries model z890 and z990" |
1da177e4 | 264 | help |
db81a23d HC |
265 | Select this to enable optimizations for model z890/z990 (2084 and |
266 | 2086 series). The kernel will be slightly faster but will not work | |
267 | on older machines. | |
1da177e4 | 268 | |
0efa4703 CB |
269 | config MARCH_Z9_109 |
270 | bool "IBM System z9" | |
271 | help | |
db81a23d HC |
272 | Select this to enable optimizations for IBM System z9 (2094 and |
273 | 2096 series). The kernel will be slightly faster but will not work | |
274 | on older machines. | |
0efa4703 | 275 | |
e37f50e1 MS |
276 | config MARCH_Z10 |
277 | bool "IBM System z10" | |
278 | help | |
db81a23d HC |
279 | Select this to enable optimizations for IBM System z10 (2097 and |
280 | 2098 series). The kernel will be slightly faster but will not work | |
281 | on older machines. | |
e37f50e1 | 282 | |
f861e405 HC |
283 | config MARCH_Z196 |
284 | bool "IBM zEnterprise 196" | |
285 | help | |
db81a23d HC |
286 | Select this to enable optimizations for IBM zEnterprise 196 |
287 | (2817 series). The kernel will be slightly faster but will not work | |
288 | on older machines. | |
f861e405 | 289 | |
1da177e4 LT |
290 | endchoice |
291 | ||
292 | config PACK_STACK | |
6f9a3c33 MS |
293 | def_bool y |
294 | prompt "Pack kernel stack" | |
1da177e4 LT |
295 | help |
296 | This option enables the compiler option -mkernel-backchain if it | |
297 | is available. If the option is available the compiler supports | |
298 | the new stack layout which dramatically reduces the minimum stack | |
299 | frame size. With an old compiler a non-leaf function needs a | |
300 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With | |
301 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit | |
302 | and 24 byte on 64 bit. | |
303 | ||
304 | Say Y if you are unsure. | |
305 | ||
306 | config SMALL_STACK | |
6f9a3c33 MS |
307 | def_bool n |
308 | prompt "Use 8kb for kernel stack instead of 16kb" | |
7f5a8ba6 | 309 | depends on PACK_STACK && 64BIT && !LOCKDEP |
1da177e4 LT |
310 | help |
311 | If you say Y here and the compiler supports the -mkernel-backchain | |
7f5a8ba6 HC |
312 | option the kernel will use a smaller kernel stack size. The reduced |
313 | size is 8kb instead of 16kb. This allows to run more threads on a | |
314 | system and reduces the pressure on the memory management for higher | |
315 | order page allocations. | |
1da177e4 LT |
316 | |
317 | Say N if you are unsure. | |
318 | ||
1da177e4 | 319 | config CHECK_STACK |
6f9a3c33 MS |
320 | def_bool y |
321 | prompt "Detect kernel stack overflow" | |
1da177e4 LT |
322 | help |
323 | This option enables the compiler option -mstack-guard and | |
324 | -mstack-size if they are available. If the compiler supports them | |
325 | it will emit additional code to each function prolog to trigger | |
326 | an illegal operation if the kernel stack is about to overflow. | |
327 | ||
328 | Say N if you are unsure. | |
329 | ||
330 | config STACK_GUARD | |
331 | int "Size of the guard area (128-1024)" | |
332 | range 128 1024 | |
333 | depends on CHECK_STACK | |
334 | default "256" | |
335 | help | |
336 | This allows you to specify the size of the guard area at the lower | |
337 | end of the kernel stack. If the kernel stack points into the guard | |
338 | area on function entry an illegal operation is triggered. The size | |
339 | needs to be a power of 2. Please keep in mind that the size of an | |
340 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
341 | The minimum size for the stack guard should be 256 for 31 bit and | |
342 | 512 for 64 bit. | |
343 | ||
344 | config WARN_STACK | |
6f9a3c33 MS |
345 | def_bool n |
346 | prompt "Emit compiler warnings for function with broken stack usage" | |
1da177e4 LT |
347 | help |
348 | This option enables the compiler options -mwarn-framesize and | |
349 | -mwarn-dynamicstack. If the compiler supports these options it | |
350 | will generate warnings for function which either use alloca or | |
025dfdaf | 351 | create a stack frame bigger than CONFIG_WARN_STACK_SIZE. |
1da177e4 LT |
352 | |
353 | Say N if you are unsure. | |
354 | ||
355 | config WARN_STACK_SIZE | |
356 | int "Maximum frame size considered safe (128-2048)" | |
357 | range 128 2048 | |
358 | depends on WARN_STACK | |
c5a37255 | 359 | default "2048" |
1da177e4 LT |
360 | help |
361 | This allows you to specify the maximum frame size a function may | |
362 | have without the compiler complaining about it. | |
363 | ||
39b742f9 HC |
364 | config ARCH_POPULATES_NODE_MAP |
365 | def_bool y | |
366 | ||
61d48c2c MS |
367 | comment "Kernel preemption" |
368 | ||
369 | source "kernel/Kconfig.preempt" | |
370 | ||
17f34580 HC |
371 | config ARCH_SPARSEMEM_ENABLE |
372 | def_bool y | |
373 | select SPARSEMEM_VMEMMAP_ENABLE | |
374 | select SPARSEMEM_VMEMMAP | |
148f1678 | 375 | select SPARSEMEM_STATIC if !64BIT |
17f34580 HC |
376 | |
377 | config ARCH_SPARSEMEM_DEFAULT | |
378 | def_bool y | |
379 | ||
97195d6b | 380 | config ARCH_SELECT_MEMORY_MODEL |
6f9a3c33 | 381 | def_bool y |
97195d6b | 382 | |
421c175c | 383 | config ARCH_ENABLE_MEMORY_HOTPLUG |
6f9a3c33 | 384 | def_bool y if SPARSEMEM |
421c175c | 385 | |
7e9238fb GS |
386 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
387 | def_bool y | |
388 | ||
155af2f9 | 389 | config ARCH_HIBERNATION_POSSIBLE |
6f9a3c33 | 390 | def_bool y if 64BIT |
155af2f9 | 391 | |
3f22ab27 DH |
392 | source "mm/Kconfig" |
393 | ||
1da177e4 LT |
394 | comment "I/O subsystem configuration" |
395 | ||
1da177e4 | 396 | config QDIO |
6f9a3c33 MS |
397 | def_tristate y |
398 | prompt "QDIO support" | |
1da177e4 | 399 | ---help--- |
8129ee16 | 400 | This driver provides the Queued Direct I/O base support for |
efca13bc | 401 | IBM System z. |
1da177e4 LT |
402 | |
403 | To compile this driver as a module, choose M here: the | |
404 | module will be called qdio. | |
405 | ||
406 | If unsure, say Y. | |
407 | ||
9d92a7e1 | 408 | config CHSC_SCH |
d9c11b1e | 409 | def_tristate m |
6f9a3c33 | 410 | prompt "Support for CHSC subchannels" |
9d92a7e1 CH |
411 | help |
412 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
413 | is usually present on LPAR only. | |
414 | The driver creates a device /dev/chsc, which may be used to | |
415 | obtain I/O configuration information about the machine and | |
416 | to issue asynchronous chsc commands (DANGEROUS). | |
417 | You will usually only want to use this interface on a special | |
418 | LPAR designated for system management. | |
419 | ||
420 | To compile this driver as a module, choose M here: the | |
421 | module will be called chsc_sch. | |
422 | ||
423 | If unsure, say N. | |
424 | ||
1da177e4 LT |
425 | comment "Misc" |
426 | ||
1da177e4 | 427 | config IPL |
6f9a3c33 MS |
428 | def_bool y |
429 | prompt "Builtin IPL record support" | |
1da177e4 LT |
430 | help |
431 | If you want to use the produced kernel to IPL directly from a | |
432 | device, you have to merge a bootsector specific to the device | |
433 | into the first bytes of the kernel. You will have to select the | |
434 | IPL device. | |
435 | ||
436 | choice | |
437 | prompt "IPL method generated into head.S" | |
438 | depends on IPL | |
46e7951f | 439 | default IPL_VM |
1da177e4 LT |
440 | help |
441 | Select "tape" if you want to IPL the image from a Tape. | |
442 | ||
443 | Select "vm_reader" if you are running under VM/ESA and want | |
444 | to IPL the image from the emulated card reader. | |
445 | ||
446 | config IPL_TAPE | |
447 | bool "tape" | |
448 | ||
449 | config IPL_VM | |
450 | bool "vm_reader" | |
451 | ||
452 | endchoice | |
453 | ||
454 | source "fs/Kconfig.binfmt" | |
455 | ||
684de39b HC |
456 | config FORCE_MAX_ZONEORDER |
457 | int | |
458 | default "9" | |
459 | ||
1da177e4 | 460 | config PFAULT |
6f9a3c33 MS |
461 | def_bool y |
462 | prompt "Pseudo page fault support" | |
1da177e4 LT |
463 | help |
464 | Select this option, if you want to use PFAULT pseudo page fault | |
465 | handling under VM. If running native or in LPAR, this option | |
466 | has no effect. If your VM does not support PFAULT, PAGEEX | |
467 | pseudo page fault handling will be used. | |
468 | Note that VM 4.2 supports PFAULT but has a bug in its | |
469 | implementation that causes some problems. | |
470 | Everybody who wants to run Linux under VM != VM4.2 should select | |
471 | this option. | |
472 | ||
473 | config SHARED_KERNEL | |
6f9a3c33 MS |
474 | def_bool y |
475 | prompt "VM shared kernel support" | |
1da177e4 LT |
476 | help |
477 | Select this option, if you want to share the text segment of the | |
478 | Linux kernel between different VM guests. This reduces memory | |
479 | usage with lots of guests but greatly increases kernel size. | |
9c9c1761 HC |
480 | Also if a kernel was IPL'ed from a shared segment the kexec system |
481 | call will not work. | |
1da177e4 LT |
482 | You should only select this option if you know what you are |
483 | doing and want to exploit this feature. | |
484 | ||
485 | config CMM | |
6f9a3c33 MS |
486 | def_tristate n |
487 | prompt "Cooperative memory management" | |
1da177e4 LT |
488 | help |
489 | Select this option, if you want to enable the kernel interface | |
490 | to reduce the memory size of the system. This is accomplished | |
491 | by allocating pages of memory and put them "on hold". This only | |
492 | makes sense for a system running under VM where the unused pages | |
493 | will be reused by VM for other guest systems. The interface | |
494 | allows an external monitor to balance memory of many systems. | |
495 | Everybody who wants to run Linux under VM should select this | |
496 | option. | |
497 | ||
1da177e4 | 498 | config CMM_IUCV |
6f9a3c33 MS |
499 | def_bool y |
500 | prompt "IUCV special message interface to cooperative memory management" | |
1da177e4 LT |
501 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
502 | help | |
503 | Select this option to enable the special message interface to | |
504 | the cooperative memory management. | |
505 | ||
1da177e4 | 506 | config APPLDATA_BASE |
6f9a3c33 MS |
507 | def_bool n |
508 | prompt "Linux - VM Monitor Stream, base infrastructure" | |
c185b783 | 509 | depends on PROC_FS |
1da177e4 LT |
510 | help |
511 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
512 | monitor records. The monitor records are updated at certain time | |
513 | intervals, once the timer is started. | |
514 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
515 | i.e. enables or disables monitoring on the Linux side. | |
516 | A custom interval value (in seconds) can be written to | |
517 | /proc/appldata/interval. | |
518 | ||
519 | Defaults are 60 seconds interval and timer off. | |
520 | The /proc entries can also be read from, showing the current settings. | |
521 | ||
522 | config APPLDATA_MEM | |
6f9a3c33 MS |
523 | def_tristate m |
524 | prompt "Monitor memory management statistics" | |
62fb2ba3 | 525 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
526 | help |
527 | This provides memory management related data to the Linux - VM Monitor | |
528 | Stream, like paging/swapping rate, memory utilisation, etc. | |
529 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
530 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
531 | on the z/VM side. | |
532 | ||
533 | Default is disabled. | |
534 | The /proc entry can also be read from, showing the current settings. | |
535 | ||
536 | This can also be compiled as a module, which will be called | |
537 | appldata_mem.o. | |
538 | ||
539 | config APPLDATA_OS | |
6f9a3c33 MS |
540 | def_tristate m |
541 | prompt "Monitor OS statistics" | |
1da177e4 LT |
542 | depends on APPLDATA_BASE |
543 | help | |
544 | This provides OS related data to the Linux - VM Monitor Stream, like | |
545 | CPU utilisation, etc. | |
546 | Writing 1 or 0 to /proc/appldata/os 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_os.o. | |
553 | ||
554 | config APPLDATA_NET_SUM | |
6f9a3c33 MS |
555 | def_tristate m |
556 | prompt "Monitor overall network statistics" | |
70193af9 | 557 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
558 | help |
559 | This provides network related data to the Linux - VM Monitor Stream, | |
560 | currently there is only a total sum of network I/O statistics, no | |
561 | per-interface data. | |
562 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM | |
563 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
564 | on the z/VM side. | |
565 | ||
566 | Default is disabled. | |
567 | This can also be compiled as a module, which will be called | |
568 | appldata_net_sum.o. | |
569 | ||
61d48c2c MS |
570 | source kernel/Kconfig.hz |
571 | ||
24bbb1fa | 572 | config S390_HYPFS_FS |
6f9a3c33 MS |
573 | def_bool y |
574 | prompt "s390 hypervisor file system support" | |
24bbb1fa | 575 | select SYS_HYPERVISOR |
24bbb1fa MH |
576 | help |
577 | This is a virtual file system intended to provide accounting | |
578 | information in an s390 hypervisor environment. | |
579 | ||
cf13f0ea | 580 | config KEXEC |
6f9a3c33 MS |
581 | def_bool n |
582 | prompt "kexec system call" | |
cf13f0ea HC |
583 | help |
584 | kexec is a system call that implements the ability to shutdown your | |
585 | current kernel, and to start another kernel. It is like a reboot | |
586 | but is independent of hardware/microcode support. | |
587 | ||
411ed322 | 588 | config ZFCPDUMP |
6f9a3c33 MS |
589 | def_bool n |
590 | prompt "zfcpdump support" | |
411ed322 | 591 | select SMP |
411ed322 MH |
592 | help |
593 | Select this option if you want to build an zfcpdump enabled kernel. | |
e403149c | 594 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
411ed322 | 595 | |
fa587743 | 596 | config S390_GUEST |
6f9a3c33 MS |
597 | def_bool y |
598 | prompt "s390 guest support for KVM (EXPERIMENTAL)" | |
fa587743 CO |
599 | depends on 64BIT && EXPERIMENTAL |
600 | select VIRTIO | |
601 | select VIRTIO_RING | |
faeba830 | 602 | select VIRTIO_CONSOLE |
fa587743 | 603 | help |
20766c08 CB |
604 | Select this option if you want to run the kernel as a guest under |
605 | the KVM hypervisor. This will add detection for KVM as well as a | |
606 | virtio transport. If KVM is detected, the virtio console will be | |
607 | the default console. | |
bcf5cef7 HC |
608 | |
609 | config SECCOMP | |
6f9a3c33 MS |
610 | def_bool y |
611 | prompt "Enable seccomp to safely compute untrusted bytecode" | |
bcf5cef7 | 612 | depends on PROC_FS |
bcf5cef7 HC |
613 | help |
614 | This kernel feature is useful for number crunching applications | |
615 | that may need to compute untrusted bytecode during their | |
616 | execution. By using pipes or other transports made available to | |
617 | the process as file descriptors supporting the read/write | |
618 | syscalls, it's possible to isolate those applications in | |
619 | their own address space using seccomp. Once seccomp is | |
620 | enabled via /proc/<pid>/seccomp, it cannot be disabled | |
621 | and the task is only allowed to execute a few safe syscalls | |
622 | defined by each seccomp mode. | |
623 | ||
624 | If unsure, say Y. | |
625 | ||
1da177e4 LT |
626 | endmenu |
627 | ||
155af2f9 HJP |
628 | menu "Power Management" |
629 | ||
630 | source "kernel/power/Kconfig" | |
631 | ||
632 | endmenu | |
633 | ||
d5950b43 SR |
634 | source "net/Kconfig" |
635 | ||
1da177e4 | 636 | config PCMCIA |
61d48c2c | 637 | def_bool n |
1da177e4 | 638 | |
61d48c2c MS |
639 | config CCW |
640 | def_bool y | |
1da177e4 | 641 | |
61d48c2c | 642 | source "drivers/Kconfig" |
1da177e4 LT |
643 | |
644 | source "fs/Kconfig" | |
645 | ||
1da177e4 LT |
646 | source "arch/s390/Kconfig.debug" |
647 | ||
648 | source "security/Kconfig" | |
649 | ||
650 | source "crypto/Kconfig" | |
651 | ||
652 | source "lib/Kconfig" | |
77b455f1 CB |
653 | |
654 | source "arch/s390/kvm/Kconfig" |