Kconfig 17.3 KB
Newer Older
L
Linus Torvalds 已提交
1
config MMU
2
	def_bool y
L
Linus Torvalds 已提交
3

4
config ZONE_DMA
5
	def_bool y
6

I
Ingo Molnar 已提交
7
config LOCKDEP_SUPPORT
8
	def_bool y
I
Ingo Molnar 已提交
9

10
config STACKTRACE_SUPPORT
11
	def_bool y
12

H
Heiko Carstens 已提交
13 14 15
config HAVE_LATENCYTOP_SUPPORT
	def_bool y

L
Linus Torvalds 已提交
16 17 18 19
config RWSEM_GENERIC_SPINLOCK
	bool

config RWSEM_XCHGADD_ALGORITHM
20
	def_bool y
L
Linus Torvalds 已提交
21

22
config ARCH_HAS_ILOG2_U32
M
Martin Schwidefsky 已提交
23
	def_bool n
24 25

config ARCH_HAS_ILOG2_U64
M
Martin Schwidefsky 已提交
26
	def_bool n
27

28
config GENERIC_HWEIGHT
29
	def_bool y
30

M
Martin Schwidefsky 已提交
31 32 33
config GENERIC_TIME_VSYSCALL
	def_bool y

34 35 36
config GENERIC_CLOCKEVENTS
	def_bool y

H
Heiko Carstens 已提交
37
config GENERIC_BUG
M
Martin Schwidefsky 已提交
38
	def_bool y if BUG
H
Heiko Carstens 已提交
39

40 41 42
config GENERIC_BUG_RELATIVE_POINTERS
	def_bool y

A
Al Viro 已提交
43
config NO_IOMEM
A
Al Viro 已提交
44 45
	def_bool y

H
Heiko Carstens 已提交
46 47 48
config NO_DMA
	def_bool y

49 50 51
config ARCH_DMA_ADDR_T_64BIT
	def_bool 64BIT

52
config GENERIC_LOCKBREAK
M
Martin Schwidefsky 已提交
53
	def_bool y if SMP && PREEMPT
54

55
config PGSTE
M
Martin Schwidefsky 已提交
56
	def_bool y if KVM
57

M
Martin Schwidefsky 已提交
58 59 60
config VIRT_CPU_ACCOUNTING
	def_bool y

A
Akinobu Mita 已提交
61 62 63
config ARCH_SUPPORTS_DEBUG_PAGEALLOC
	def_bool y

64
config S390
65
	def_bool y
66
	select USE_GENERIC_SMP_HELPERS if SMP
67
	select HAVE_SYSCALL_WRAPPERS
68
	select HAVE_FUNCTION_TRACER
69
	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
70
	select HAVE_FTRACE_MCOUNT_RECORD
71
	select HAVE_C_RECORDMCOUNT
72
	select HAVE_SYSCALL_TRACEPOINTS
73
	select HAVE_DYNAMIC_FTRACE
74
	select HAVE_FUNCTION_GRAPH_TRACER
75
	select HAVE_REGS_AND_STACK_ACCESS_API
M
Mathieu Desnoyers 已提交
76
	select HAVE_OPROFILE
M
Mathieu Desnoyers 已提交
77
	select HAVE_KPROBES
78
	select HAVE_KRETPROBES
79
	select HAVE_KVM if 64BIT
M
Martin Schwidefsky 已提交
80
	select HAVE_ARCH_TRACEHOOK
81
	select INIT_ALL_POSSIBLE
82
	select HAVE_IRQ_WORK
83
	select HAVE_PERF_EVENTS
84
	select ARCH_HAVE_NMI_SAFE_CMPXCHG
85 86 87
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
	select HAVE_KERNEL_LZMA
88
	select HAVE_KERNEL_LZO
89
	select HAVE_KERNEL_XZ
90
	select HAVE_GET_USER_PAGES_FAST
91
	select HAVE_ARCH_MUTEX_CPU_RELAX
J
Jan Glauber 已提交
92
	select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
93
	select HAVE_RCU_TABLE_FREE if SMP
94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121
	select ARCH_INLINE_SPIN_TRYLOCK
	select ARCH_INLINE_SPIN_TRYLOCK_BH
	select ARCH_INLINE_SPIN_LOCK
	select ARCH_INLINE_SPIN_LOCK_BH
	select ARCH_INLINE_SPIN_LOCK_IRQ
	select ARCH_INLINE_SPIN_LOCK_IRQSAVE
	select ARCH_INLINE_SPIN_UNLOCK
	select ARCH_INLINE_SPIN_UNLOCK_BH
	select ARCH_INLINE_SPIN_UNLOCK_IRQ
	select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
	select ARCH_INLINE_READ_TRYLOCK
	select ARCH_INLINE_READ_LOCK
	select ARCH_INLINE_READ_LOCK_BH
	select ARCH_INLINE_READ_LOCK_IRQ
	select ARCH_INLINE_READ_LOCK_IRQSAVE
	select ARCH_INLINE_READ_UNLOCK
	select ARCH_INLINE_READ_UNLOCK_BH
	select ARCH_INLINE_READ_UNLOCK_IRQ
	select ARCH_INLINE_READ_UNLOCK_IRQRESTORE
	select ARCH_INLINE_WRITE_TRYLOCK
	select ARCH_INLINE_WRITE_LOCK
	select ARCH_INLINE_WRITE_LOCK_BH
	select ARCH_INLINE_WRITE_LOCK_IRQ
	select ARCH_INLINE_WRITE_LOCK_IRQSAVE
	select ARCH_INLINE_WRITE_UNLOCK
	select ARCH_INLINE_WRITE_UNLOCK_BH
	select ARCH_INLINE_WRITE_UNLOCK_IRQ
	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
L
Linus Torvalds 已提交
122

123
config SCHED_OMIT_FRAME_POINTER
M
Martin Schwidefsky 已提交
124
	def_bool y
125

L
Linus Torvalds 已提交
126 127
source "init/Kconfig"

128 129
source "kernel/Kconfig.freezer"

L
Linus Torvalds 已提交
130 131 132 133
menu "Base setup"

comment "Processor type and features"

134 135
source "kernel/time/Kconfig"

136
config 64BIT
M
Martin Schwidefsky 已提交
137 138
	def_bool y
	prompt "64 bit kernel"
L
Linus Torvalds 已提交
139
	help
140
	  Select this option if you have an IBM z/Architecture machine
L
Linus Torvalds 已提交
141 142
	  and want to use the 64 bit addressing mode.

143
config 32BIT
M
Martin Schwidefsky 已提交
144
	def_bool y if !64BIT
145

146 147 148
config KTIME_SCALAR
	def_bool 32BIT

L
Linus Torvalds 已提交
149
config SMP
M
Martin Schwidefsky 已提交
150 151
	def_bool y
	prompt "Symmetric multi-processing support"
L
Linus Torvalds 已提交
152 153 154 155 156 157 158 159 160 161 162
	---help---
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
	  singleprocessor machines. On a singleprocessor machine, the kernel
	  will run faster if you say N here.

A
Adrian Bunk 已提交
163 164
	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
L
Linus Torvalds 已提交
165 166 167 168 169 170 171

	  Even if you don't know what to do here, say Y.

config NR_CPUS
	int "Maximum number of CPUs (2-64)"
	range 2 64
	depends on SMP
172 173
	default "32" if !64BIT
	default "64" if 64BIT
L
Linus Torvalds 已提交
174 175 176 177 178 179 180 181 182
	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 64 and the
	  minimum value which makes sense is 2.

	  This is purely to save memory - each supported CPU adds
	  approximately sixteen kilobytes to the kernel image.

config HOTPLUG_CPU
M
Martin Schwidefsky 已提交
183 184
	def_bool y
	prompt "Support for hot-pluggable CPUs"
L
Linus Torvalds 已提交
185 186 187 188 189 190 191
	depends on SMP
	select HOTPLUG
	help
	  Say Y here to be able to turn CPUs off and on. CPUs
	  can be controlled through /sys/devices/system/cpu/cpu#.
	  Say N if you want to disable CPU hotplug.

192 193 194 195 196 197 198 199 200
config SCHED_MC
	def_bool y
	prompt "Multi-core scheduler support"
	depends on SMP
	help
	  Multi-core scheduler support improves the CPU scheduler's decision
	  making when dealing with multi-core CPU chips at a cost of slightly
	  increased overhead in some places.

201
config SCHED_BOOK
M
Martin Schwidefsky 已提交
202 203
	def_bool y
	prompt "Book scheduler support"
204
	depends on SMP && SCHED_MC
205 206 207 208
	help
	  Book scheduler support improves the CPU scheduler's decision making
	  when dealing with machines that have several books.

L
Linus Torvalds 已提交
209
config MATHEMU
M
Martin Schwidefsky 已提交
210 211
	def_bool y
	prompt "IEEE FPU emulation"
L
Linus Torvalds 已提交
212 213 214
	depends on MARCH_G5
	help
	  This option is required for IEEE compliant floating point arithmetic
215
	  on older ESA/390 machines. Say Y unless you know your machine doesn't
L
Linus Torvalds 已提交
216 217
	  need this.

218
config COMPAT
M
Martin Schwidefsky 已提交
219 220
	def_bool y
	prompt "Kernel support for 31 bit emulation"
221
	depends on 64BIT
222
	select COMPAT_BINFMT_ELF
L
Linus Torvalds 已提交
223 224 225 226 227 228 229
	help
	  Select this option if you want to enable your system kernel to
	  handle system-calls from ELF binaries for 31 bit ESA.  This option
	  (and some other stuff like libraries and such) is needed for
	  executing 31 bit applications.  It is safe to say "Y".

config SYSVIPC_COMPAT
M
Martin Schwidefsky 已提交
230
	def_bool y if COMPAT && SYSVIPC
L
Linus Torvalds 已提交
231

232
config AUDIT_ARCH
M
Martin Schwidefsky 已提交
233
	def_bool y
234

L
Linus Torvalds 已提交
235 236 237 238 239 240 241
comment "Code generation options"

choice
	prompt "Processor type"
	default MARCH_G5

config MARCH_G5
242
	bool "System/390 model G5 and G6"
243
	depends on !64BIT
L
Linus Torvalds 已提交
244 245
	help
	  Select this to build a 31 bit kernel that works
246
	  on all ESA/390 and z/Architecture machines.
L
Linus Torvalds 已提交
247 248

config MARCH_Z900
249
	bool "IBM zSeries model z800 and z900"
L
Linus Torvalds 已提交
250
	help
251 252 253
	  Select this to enable optimizations for model z800/z900 (2064 and
	  2066 series). This will enable some optimizations that are not
	  available on older ESA/390 (31 Bit) only CPUs.
L
Linus Torvalds 已提交
254 255

config MARCH_Z990
256
	bool "IBM zSeries model z890 and z990"
L
Linus Torvalds 已提交
257
	help
258 259 260
	  Select this to enable optimizations for model z890/z990 (2084 and
	  2086 series). The kernel will be slightly faster but will not work
	  on older machines.
L
Linus Torvalds 已提交
261

262 263 264
config MARCH_Z9_109
	bool "IBM System z9"
	help
265 266 267
	  Select this to enable optimizations for IBM System z9 (2094 and
	  2096 series). The kernel will be slightly faster but will not work
	  on older machines.
268

269 270 271
config MARCH_Z10
	bool "IBM System z10"
	help
272 273 274
	  Select this to enable optimizations for IBM System z10 (2097 and
	  2098 series). The kernel will be slightly faster but will not work
	  on older machines.
275

276
config MARCH_Z196
277
	bool "IBM zEnterprise 114 and 196"
278
	help
279 280 281
	  Select this to enable optimizations for IBM zEnterprise 114 and 196
	  (2818 and 2817 series). The kernel will be slightly faster but will
	  not work on older machines.
282

L
Linus Torvalds 已提交
283 284 285
endchoice

config PACK_STACK
M
Martin Schwidefsky 已提交
286 287
	def_bool y
	prompt "Pack kernel stack"
L
Linus Torvalds 已提交
288 289 290 291 292 293 294 295 296 297 298 299
	help
	  This option enables the compiler option -mkernel-backchain if it
	  is available. If the option is available the compiler supports
	  the new stack layout which dramatically reduces the minimum stack
	  frame size. With an old compiler a non-leaf function needs a
	  minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With
	  -mkernel-backchain the minimum size drops to 16 byte on 31 bit
	  and 24 byte on 64 bit.

	  Say Y if you are unsure.

config SMALL_STACK
M
Martin Schwidefsky 已提交
300 301
	def_bool n
	prompt "Use 8kb for kernel stack instead of 16kb"
H
Heiko Carstens 已提交
302
	depends on PACK_STACK && 64BIT && !LOCKDEP
L
Linus Torvalds 已提交
303 304
	help
	  If you say Y here and the compiler supports the -mkernel-backchain
H
Heiko Carstens 已提交
305 306 307 308
	  option the kernel will use a smaller kernel stack size. The reduced
	  size is 8kb instead of 16kb. This allows to run more threads on a
	  system and reduces the pressure on the memory management for higher
	  order page allocations.
L
Linus Torvalds 已提交
309 310 311 312

	  Say N if you are unsure.

config CHECK_STACK
M
Martin Schwidefsky 已提交
313 314
	def_bool y
	prompt "Detect kernel stack overflow"
L
Linus Torvalds 已提交
315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336
	help
	  This option enables the compiler option -mstack-guard and
	  -mstack-size if they are available. If the compiler supports them
	  it will emit additional code to each function prolog to trigger
	  an illegal operation if the kernel stack is about to overflow.

	  Say N if you are unsure.

config STACK_GUARD
	int "Size of the guard area (128-1024)"
	range 128 1024
	depends on CHECK_STACK
	default "256"
	help
	  This allows you to specify the size of the guard area at the lower
	  end of the kernel stack. If the kernel stack points into the guard
	  area on function entry an illegal operation is triggered. The size
	  needs to be a power of 2. Please keep in mind that the size of an
	  interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit.
	  The minimum size for the stack guard should be 256 for 31 bit and
	  512 for 64 bit.

337
config WARN_DYNAMIC_STACK
M
Martin Schwidefsky 已提交
338
	def_bool n
339
	prompt "Emit compiler warnings for function with dynamic stack usage"
L
Linus Torvalds 已提交
340
	help
341 342 343
	  This option enables the compiler option -mwarn-dynamicstack. If the
	  compiler supports this options generates warnings for functions
	  that dynamically allocate stack space using alloca.
L
Linus Torvalds 已提交
344 345 346

	  Say N if you are unsure.

347 348 349
config ARCH_POPULATES_NODE_MAP
	def_bool y

350 351 352 353
comment "Kernel preemption"

source "kernel/Kconfig.preempt"

354 355 356 357
config ARCH_SPARSEMEM_ENABLE
	def_bool y
	select SPARSEMEM_VMEMMAP_ENABLE
	select SPARSEMEM_VMEMMAP
358
	select SPARSEMEM_STATIC if !64BIT
359 360 361 362

config ARCH_SPARSEMEM_DEFAULT
	def_bool y

363
config ARCH_SELECT_MEMORY_MODEL
M
Martin Schwidefsky 已提交
364
	def_bool y
365

366
config ARCH_ENABLE_MEMORY_HOTPLUG
M
Martin Schwidefsky 已提交
367
	def_bool y if SPARSEMEM
368

369 370 371
config ARCH_ENABLE_MEMORY_HOTREMOVE
	def_bool y

372
config ARCH_HIBERNATION_POSSIBLE
M
Martin Schwidefsky 已提交
373
	def_bool y if 64BIT
374

375 376
source "mm/Kconfig"

L
Linus Torvalds 已提交
377 378 379
comment "I/O subsystem configuration"

config QDIO
M
Martin Schwidefsky 已提交
380 381
	def_tristate y
	prompt "QDIO support"
L
Linus Torvalds 已提交
382
	---help---
383
	  This driver provides the Queued Direct I/O base support for
384
	  IBM System z.
L
Linus Torvalds 已提交
385 386 387 388 389 390

	  To compile this driver as a module, choose M here: the
	  module will be called qdio.

	  If unsure, say Y.

391
config CHSC_SCH
392
	def_tristate m
M
Martin Schwidefsky 已提交
393
	prompt "Support for CHSC subchannels"
394 395 396 397 398 399 400 401 402 403 404 405 406 407
	help
	  This driver allows usage of CHSC subchannels. A CHSC subchannel
	  is usually present on LPAR only.
	  The driver creates a device /dev/chsc, which may be used to
	  obtain I/O configuration information about the machine and
	  to issue asynchronous chsc commands (DANGEROUS).
	  You will usually only want to use this interface on a special
	  LPAR designated for system management.

	  To compile this driver as a module, choose M here: the
	  module will be called chsc_sch.

	  If unsure, say N.

L
Linus Torvalds 已提交
408 409 410
comment "Misc"

config IPL
M
Martin Schwidefsky 已提交
411 412
	def_bool y
	prompt "Builtin IPL record support"
L
Linus Torvalds 已提交
413 414 415 416 417 418 419 420 421
	help
	  If you want to use the produced kernel to IPL directly from a
	  device, you have to merge a bootsector specific to the device
	  into the first bytes of the kernel. You will have to select the
	  IPL device.

choice
	prompt "IPL method generated into head.S"
	depends on IPL
422
	default IPL_VM
L
Linus Torvalds 已提交
423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438
	help
	  Select "tape" if you want to IPL the image from a Tape.

	  Select "vm_reader" if you are running under VM/ESA and want
	  to IPL the image from the emulated card reader.

config IPL_TAPE
	bool "tape"

config IPL_VM
	bool "vm_reader"

endchoice

source "fs/Kconfig.binfmt"

H
Heiko Carstens 已提交
439 440 441 442
config FORCE_MAX_ZONEORDER
	int
	default "9"

L
Linus Torvalds 已提交
443
config PFAULT
M
Martin Schwidefsky 已提交
444 445
	def_bool y
	prompt "Pseudo page fault support"
L
Linus Torvalds 已提交
446 447 448 449 450 451 452 453 454 455 456
	help
	  Select this option, if you want to use PFAULT pseudo page fault
	  handling under VM. If running native or in LPAR, this option
	  has no effect. If your VM does not support PFAULT, PAGEEX
	  pseudo page fault handling will be used.
	  Note that VM 4.2 supports PFAULT but has a bug in its
	  implementation that causes some problems.
	  Everybody who wants to run Linux under VM != VM4.2 should select
	  this option.

config SHARED_KERNEL
M
Martin Schwidefsky 已提交
457 458
	def_bool y
	prompt "VM shared kernel support"
L
Linus Torvalds 已提交
459 460 461 462
	help
	  Select this option, if you want to share the text segment of the
	  Linux kernel between different VM guests. This reduces memory
	  usage with lots of guests but greatly increases kernel size.
H
Heiko Carstens 已提交
463 464
	  Also if a kernel was IPL'ed from a shared segment the kexec system
	  call will not work.
L
Linus Torvalds 已提交
465 466 467 468
	  You should only select this option if you know what you are
	  doing and want to exploit this feature.

config CMM
M
Martin Schwidefsky 已提交
469 470
	def_tristate n
	prompt "Cooperative memory management"
L
Linus Torvalds 已提交
471 472 473 474 475 476 477 478 479 480 481
	help
	  Select this option, if you want to enable the kernel interface
	  to reduce the memory size of the system. This is accomplished
	  by allocating pages of memory and put them "on hold". This only
	  makes sense for a system running under VM where the unused pages
	  will be reused by VM for other guest systems. The interface
	  allows an external monitor to balance memory of many systems.
	  Everybody who wants to run Linux under VM should select this
	  option.

config CMM_IUCV
M
Martin Schwidefsky 已提交
482 483
	def_bool y
	prompt "IUCV special message interface to cooperative memory management"
L
Linus Torvalds 已提交
484 485 486 487 488 489
	depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV)
	help
	  Select this option to enable the special message interface to
	  the cooperative memory management.

config APPLDATA_BASE
M
Martin Schwidefsky 已提交
490 491
	def_bool n
	prompt "Linux - VM Monitor Stream, base infrastructure"
M
Martin Schwidefsky 已提交
492
	depends on PROC_FS
L
Linus Torvalds 已提交
493 494 495 496 497 498 499 500 501 502 503 504 505
	help
	  This provides a kernel interface for creating and updating z/VM APPLDATA
	  monitor records. The monitor records are updated at certain time
	  intervals, once the timer is started.
	  Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer,
	  i.e. enables or disables monitoring on the Linux side.
	  A custom interval value (in seconds) can be written to
	  /proc/appldata/interval.

	  Defaults are 60 seconds interval and timer off.
	  The /proc entries can also be read from, showing the current settings.

config APPLDATA_MEM
M
Martin Schwidefsky 已提交
506 507
	def_tristate m
	prompt "Monitor memory management statistics"
508
	depends on APPLDATA_BASE && VM_EVENT_COUNTERS
L
Linus Torvalds 已提交
509 510 511 512 513 514 515 516 517 518 519 520 521 522
	help
	  This provides memory management related data to the Linux - VM Monitor
	  Stream, like paging/swapping rate, memory utilisation, etc.
	  Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM
	  APPLDATA monitor record, i.e. enables or disables monitoring this record
	  on the z/VM side.

	  Default is disabled.
	  The /proc entry can also be read from, showing the current settings.

	  This can also be compiled as a module, which will be called
	  appldata_mem.o.

config APPLDATA_OS
M
Martin Schwidefsky 已提交
523 524
	def_tristate m
	prompt "Monitor OS statistics"
L
Linus Torvalds 已提交
525 526 527 528 529 530 531 532 533 534 535 536 537
	depends on APPLDATA_BASE
	help
	  This provides OS related data to the Linux - VM Monitor Stream, like
	  CPU utilisation, etc.
	  Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM
	  APPLDATA monitor record, i.e. enables or disables monitoring this record
	  on the z/VM side.

	  Default is disabled.
	  This can also be compiled as a module, which will be called
	  appldata_os.o.

config APPLDATA_NET_SUM
M
Martin Schwidefsky 已提交
538 539
	def_tristate m
	prompt "Monitor overall network statistics"
540
	depends on APPLDATA_BASE && NET
L
Linus Torvalds 已提交
541 542 543 544 545 546 547 548 549 550 551 552
	help
	  This provides network related data to the Linux - VM Monitor Stream,
	  currently there is only a total sum of network I/O statistics, no
	  per-interface data.
	  Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM
	  APPLDATA monitor record, i.e. enables or disables monitoring this record
	  on the z/VM side.

	  Default is disabled.
	  This can also be compiled as a module, which will be called
	  appldata_net_sum.o.

553 554
source kernel/Kconfig.hz

M
Michael Holzheu 已提交
555
config S390_HYPFS_FS
M
Martin Schwidefsky 已提交
556 557
	def_bool y
	prompt "s390 hypervisor file system support"
M
Michael Holzheu 已提交
558 559 560 561 562
	select SYS_HYPERVISOR
	help
	  This is a virtual file system intended to provide accounting
	  information in an s390 hypervisor environment.

H
Heiko Carstens 已提交
563
config KEXEC
M
Martin Schwidefsky 已提交
564 565
	def_bool n
	prompt "kexec system call"
H
Heiko Carstens 已提交
566 567 568 569 570
	help
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
	  but is independent of hardware/microcode support.

M
Michael Holzheu 已提交
571
config ZFCPDUMP
M
Martin Schwidefsky 已提交
572 573
	def_bool n
	prompt "zfcpdump support"
M
Michael Holzheu 已提交
574 575 576
	select SMP
	help
	  Select this option if you want to build an zfcpdump enabled kernel.
577
	  Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
M
Michael Holzheu 已提交
578

579
config S390_GUEST
M
Martin Schwidefsky 已提交
580 581
	def_bool y
	prompt "s390 guest support for KVM (EXPERIMENTAL)"
582
	depends on 64BIT && EXPERIMENTAL
583
	select VIRTUALIZATION
584 585
	select VIRTIO
	select VIRTIO_RING
586
	select VIRTIO_CONSOLE
587
	help
588 589 590 591
	  Select this option if you want to run the kernel as a guest under
	  the KVM hypervisor. This will add detection for KVM as well  as a
	  virtio transport. If KVM is detected, the virtio console will be
	  the default console.
592 593

config SECCOMP
M
Martin Schwidefsky 已提交
594 595
	def_bool y
	prompt "Enable seccomp to safely compute untrusted bytecode"
596 597 598 599 600 601 602 603 604 605 606 607 608 609
	depends on PROC_FS
	help
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via /proc/<pid>/seccomp, it cannot be disabled
	  and the task is only allowed to execute a few safe syscalls
	  defined by each seccomp mode.

	  If unsure, say Y.

L
Linus Torvalds 已提交
610 611
endmenu

612 613 614 615 616 617
menu "Power Management"

source "kernel/power/Kconfig"

endmenu

618 619
source "net/Kconfig"

L
Linus Torvalds 已提交
620
config PCMCIA
621
	def_bool n
L
Linus Torvalds 已提交
622

623 624
config CCW
	def_bool y
L
Linus Torvalds 已提交
625

626
source "drivers/Kconfig"
L
Linus Torvalds 已提交
627 628 629 630 631 632 633 634 635 636

source "fs/Kconfig"

source "arch/s390/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"
637 638

source "arch/s390/kvm/Kconfig"