1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 config MMU !! 2 config M68K
3 def_bool y !! 3 bool
>> 4 default y
>> 5 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
>> 6 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
>> 7 select ARCH_NO_COHERENT_DMA_MMAP if !MMU
>> 8 select ARCH_NO_PREEMPT if !COLDFIRE
>> 9 select HAVE_IDE
>> 10 select HAVE_AOUT if MMU
>> 11 select HAVE_DEBUG_BUGVERBOSE
>> 12 select GENERIC_IRQ_SHOW
>> 13 select GENERIC_ATOMIC64
>> 14 select HAVE_UID16
>> 15 select VIRT_TO_BUS
>> 16 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
>> 17 select GENERIC_CPU_DEVICES
>> 18 select GENERIC_IOMAP
>> 19 select GENERIC_STRNCPY_FROM_USER if MMU
>> 20 select GENERIC_STRNLEN_USER if MMU
>> 21 select ARCH_WANT_IPC_PARSE_VERSION
>> 22 select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
>> 23 select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
>> 24 select HAVE_MOD_ARCH_SPECIFIC
>> 25 select MODULES_USE_ELF_REL
>> 26 select MODULES_USE_ELF_RELA
>> 27 select OLD_SIGSUSPEND3
>> 28 select OLD_SIGACTION
>> 29 select DMA_DIRECT_OPS if HAS_DMA
>> 30 select ARCH_DISCARD_MEMBLOCK
4 31
5 config CPU_BIG_ENDIAN 32 config CPU_BIG_ENDIAN
6 def_bool y 33 def_bool y
7 34
8 config LOCKDEP_SUPPORT !! 35 config RWSEM_GENERIC_SPINLOCK
9 def_bool y !! 36 bool
>> 37 default y
10 38
11 config STACKTRACE_SUPPORT !! 39 config RWSEM_XCHGADD_ALGORITHM
12 def_bool y !! 40 bool
13 41
14 config ARCH_HAS_ILOG2_U32 42 config ARCH_HAS_ILOG2_U32
15 def_bool n !! 43 bool
16 44
17 config ARCH_HAS_ILOG2_U64 45 config ARCH_HAS_ILOG2_U64
18 def_bool n !! 46 bool
19 <<
20 config ARCH_PROC_KCORE_TEXT <<
21 def_bool y <<
22 47
23 config GENERIC_HWEIGHT 48 config GENERIC_HWEIGHT
24 def_bool !HAVE_MARCH_Z196_FEATURES !! 49 bool
25 !! 50 default y
26 config GENERIC_BUG <<
27 def_bool y if BUG <<
28 <<
29 config GENERIC_BUG_RELATIVE_POINTERS <<
30 def_bool y <<
31 51
32 config GENERIC_LOCKBREAK !! 52 config GENERIC_CALIBRATE_DELAY
33 def_bool y if PREEMPTION !! 53 bool
>> 54 default y
34 55
35 config PGSTE !! 56 config GENERIC_CSUM
36 def_bool y if KVM !! 57 bool
37 58
38 config AUDIT_ARCH !! 59 config TIME_LOW_RES
39 def_bool y !! 60 bool
>> 61 default y
40 62
41 config NO_IOPORT_MAP 63 config NO_IOPORT_MAP
42 def_bool y 64 def_bool y
43 65
44 config PCI_QUIRKS !! 66 config NO_DMA
45 def_bool n !! 67 def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)
46 <<
47 config ARCH_SUPPORTS_UPROBES <<
48 def_bool y <<
49 <<
50 config KASAN_SHADOW_OFFSET <<
51 hex <<
52 depends on KASAN <<
53 default 0x1C000000000000 <<
54 <<
55 config S390 <<
56 def_bool y <<
57 # <<
58 # Note: keep this list sorted alphabet <<
59 # <<
60 imply IMA_SECURE_AND_OR_TRUSTED_BOOT <<
61 select ALTERNATE_USER_ADDRESS_SPACE <<
62 select ARCH_32BIT_USTAT_F_TINODE <<
63 select ARCH_BINFMT_ELF_STATE <<
64 select ARCH_CORRECT_STACKTRACE_ON_KRET <<
65 select ARCH_ENABLE_MEMORY_HOTPLUG if S <<
66 select ARCH_ENABLE_MEMORY_HOTREMOVE <<
67 select ARCH_ENABLE_SPLIT_PMD_PTLOCK if <<
68 select ARCH_HAS_CURRENT_STACK_POINTER <<
69 select ARCH_HAS_DEBUG_VIRTUAL <<
70 select ARCH_HAS_DEBUG_VM_PGTABLE <<
71 select ARCH_HAS_DEBUG_WX <<
72 select ARCH_HAS_DEVMEM_IS_ALLOWED <<
73 select ARCH_HAS_DMA_OPS if PCI <<
74 select ARCH_HAS_ELF_RANDOMIZE <<
75 select ARCH_HAS_FORCE_DMA_UNENCRYPTED <<
76 select ARCH_HAS_FORTIFY_SOURCE <<
77 select ARCH_HAS_GCOV_PROFILE_ALL <<
78 select ARCH_HAS_GIGANTIC_PAGE <<
79 select ARCH_HAS_KCOV <<
80 select ARCH_HAS_MEMBARRIER_SYNC_CORE <<
81 select ARCH_HAS_MEM_ENCRYPT <<
82 select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS <<
83 select ARCH_HAS_PTE_SPECIAL <<
84 select ARCH_HAS_SCALED_CPUTIME <<
85 select ARCH_HAS_SET_DIRECT_MAP <<
86 select ARCH_HAS_SET_MEMORY <<
87 select ARCH_HAS_STRICT_KERNEL_RWX <<
88 select ARCH_HAS_STRICT_MODULE_RWX <<
89 select ARCH_HAS_SYSCALL_WRAPPER <<
90 select ARCH_HAS_UBSAN <<
91 select ARCH_HAS_VDSO_DATA <<
92 select ARCH_HAVE_NMI_SAFE_CMPXCHG <<
93 select ARCH_INLINE_READ_LOCK <<
94 select ARCH_INLINE_READ_LOCK_BH <<
95 select ARCH_INLINE_READ_LOCK_IRQ <<
96 select ARCH_INLINE_READ_LOCK_IRQSAVE <<
97 select ARCH_INLINE_READ_TRYLOCK <<
98 select ARCH_INLINE_READ_UNLOCK <<
99 select ARCH_INLINE_READ_UNLOCK_BH <<
100 select ARCH_INLINE_READ_UNLOCK_IRQ <<
101 select ARCH_INLINE_READ_UNLOCK_IRQREST <<
102 select ARCH_INLINE_SPIN_LOCK <<
103 select ARCH_INLINE_SPIN_LOCK_BH <<
104 select ARCH_INLINE_SPIN_LOCK_IRQ <<
105 select ARCH_INLINE_SPIN_LOCK_IRQSAVE <<
106 select ARCH_INLINE_SPIN_TRYLOCK <<
107 select ARCH_INLINE_SPIN_TRYLOCK_BH <<
108 select ARCH_INLINE_SPIN_UNLOCK <<
109 select ARCH_INLINE_SPIN_UNLOCK_BH <<
110 select ARCH_INLINE_SPIN_UNLOCK_IRQ <<
111 select ARCH_INLINE_SPIN_UNLOCK_IRQREST <<
112 select ARCH_INLINE_WRITE_LOCK <<
113 select ARCH_INLINE_WRITE_LOCK_BH <<
114 select ARCH_INLINE_WRITE_LOCK_IRQ <<
115 select ARCH_INLINE_WRITE_LOCK_IRQSAVE <<
116 select ARCH_INLINE_WRITE_TRYLOCK <<
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_IRQRES <<
121 select ARCH_MHP_MEMMAP_ON_MEMORY_ENABL <<
122 select ARCH_STACKWALK <<
123 select ARCH_SUPPORTS_ATOMIC_RMW <<
124 select ARCH_SUPPORTS_DEBUG_PAGEALLOC <<
125 select ARCH_SUPPORTS_HUGETLBFS <<
126 select ARCH_SUPPORTS_INT128 if CC_HAS_ <<
127 select ARCH_SUPPORTS_NUMA_BALANCING <<
128 select ARCH_SUPPORTS_PER_VMA_LOCK <<
129 select ARCH_USE_BUILTIN_BSWAP <<
130 select ARCH_USE_CMPXCHG_LOCKREF <<
131 select ARCH_USE_SYM_ANNOTATIONS <<
132 select ARCH_WANTS_NO_INSTR <<
133 select ARCH_WANT_DEFAULT_BPF_JIT <<
134 select ARCH_WANT_IPC_PARSE_VERSION <<
135 select ARCH_WANT_KERNEL_PMD_MKWRITE <<
136 select ARCH_WANT_LD_ORPHAN_WARN <<
137 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEM <<
138 select BUILDTIME_TABLE_SORT <<
139 select CLONE_BACKWARDS2 <<
140 select DCACHE_WORD_ACCESS if !KMSAN <<
141 select DYNAMIC_FTRACE if FUNCTION_TRAC <<
142 select FUNCTION_ALIGNMENT_8B if CC_IS_ <<
143 select FUNCTION_ALIGNMENT_16B if !CC_I <<
144 select GENERIC_ALLOCATOR <<
145 select GENERIC_CPU_DEVICES <<
146 select GENERIC_CPU_AUTOPROBE <<
147 select GENERIC_CPU_VULNERABILITIES <<
148 select GENERIC_ENTRY <<
149 select GENERIC_GETTIMEOFDAY <<
150 select GENERIC_PTDUMP <<
151 select GENERIC_SMP_IDLE_THREAD <<
152 select GENERIC_TIME_VSYSCALL <<
153 select GENERIC_VDSO_TIME_NS <<
154 select GENERIC_IOREMAP if PCI <<
155 select HAVE_ALIGNED_STRUCT_PAGE <<
156 select HAVE_ARCH_AUDITSYSCALL <<
157 select HAVE_ARCH_JUMP_LABEL <<
158 select HAVE_ARCH_JUMP_LABEL_RELATIVE <<
159 select HAVE_ARCH_KASAN <<
160 select HAVE_ARCH_KASAN_VMALLOC <<
161 select HAVE_ARCH_KCSAN <<
162 select HAVE_ARCH_KMSAN <<
163 select HAVE_ARCH_KFENCE <<
164 select HAVE_ARCH_RANDOMIZE_KSTACK_OFFS <<
165 select HAVE_ARCH_SECCOMP_FILTER <<
166 select HAVE_ARCH_SOFT_DIRTY <<
167 select HAVE_ARCH_STACKLEAK <<
168 select HAVE_ARCH_TRACEHOOK <<
169 select HAVE_ARCH_TRANSPARENT_HUGEPAGE <<
170 select HAVE_ARCH_VMAP_STACK <<
171 select HAVE_ASM_MODVERSIONS <<
172 select HAVE_CMPXCHG_DOUBLE <<
173 select HAVE_CMPXCHG_LOCAL <<
174 select HAVE_DEBUG_KMEMLEAK <<
175 select HAVE_DMA_CONTIGUOUS <<
176 select HAVE_DYNAMIC_FTRACE <<
177 select HAVE_DYNAMIC_FTRACE_WITH_ARGS <<
178 select HAVE_DYNAMIC_FTRACE_WITH_DIRECT <<
179 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
180 select HAVE_EBPF_JIT if HAVE_MARCH_Z19 <<
181 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
182 select HAVE_GUP_FAST <<
183 select HAVE_FENTRY <<
184 select HAVE_FTRACE_MCOUNT_RECORD <<
185 select HAVE_FUNCTION_ARG_ACCESS_API <<
186 select HAVE_FUNCTION_ERROR_INJECTION <<
187 select HAVE_FUNCTION_GRAPH_RETVAL <<
188 select HAVE_FUNCTION_GRAPH_TRACER <<
189 select HAVE_FUNCTION_TRACER <<
190 select HAVE_GCC_PLUGINS <<
191 select HAVE_GENERIC_VDSO <<
192 select HAVE_IOREMAP_PROT if PCI <<
193 select HAVE_KERNEL_BZIP2 <<
194 select HAVE_KERNEL_GZIP <<
195 select HAVE_KERNEL_LZ4 <<
196 select HAVE_KERNEL_LZMA <<
197 select HAVE_KERNEL_LZO <<
198 select HAVE_KERNEL_UNCOMPRESSED <<
199 select HAVE_KERNEL_XZ <<
200 select HAVE_KERNEL_ZSTD <<
201 select HAVE_KPROBES <<
202 select HAVE_KPROBES_ON_FTRACE <<
203 select HAVE_KRETPROBES <<
204 select HAVE_LIVEPATCH <<
205 select HAVE_MEMBLOCK_PHYS_MAP <<
206 select HAVE_MOD_ARCH_SPECIFIC <<
207 select HAVE_NMI <<
208 select HAVE_NOP_MCOUNT <<
209 select HAVE_PAGE_SIZE_4KB <<
210 select HAVE_PCI <<
211 select HAVE_PERF_EVENTS <<
212 select HAVE_PERF_REGS <<
213 select HAVE_PERF_USER_STACK_DUMP <<
214 select HAVE_REGS_AND_STACK_ACCESS_API <<
215 select HAVE_RELIABLE_STACKTRACE <<
216 select HAVE_RETHOOK <<
217 select HAVE_RSEQ <<
218 select HAVE_SAMPLE_FTRACE_DIRECT <<
219 select HAVE_SAMPLE_FTRACE_DIRECT_MULTI <<
220 select HAVE_SETUP_PER_CPU_AREA <<
221 select HAVE_SOFTIRQ_ON_OWN_STACK <<
222 select HAVE_SYSCALL_TRACEPOINTS <<
223 select HAVE_VIRT_CPU_ACCOUNTING <<
224 select HAVE_VIRT_CPU_ACCOUNTING_IDLE <<
225 select IOMMU_HELPER if PCI <<
226 select IOMMU_SUPPORT if PCI <<
227 select MMU_GATHER_MERGE_VMAS <<
228 select MMU_GATHER_NO_GATHER <<
229 select MMU_GATHER_RCU_TABLE_FREE <<
230 select MODULES_USE_ELF_RELA <<
231 select NEED_DMA_MAP_STATE if PCI <<
232 select NEED_PER_CPU_EMBED_FIRST_CHUNK <<
233 select NEED_SG_DMA_LENGTH if PCI <<
234 select OLD_SIGACTION <<
235 select OLD_SIGSUSPEND3 <<
236 select PCI_DOMAINS if PCI <<
237 select PCI_MSI if PCI <<
238 select PCI_MSI_ARCH_FALLBACKS if PCI <<
239 select SPARSE_IRQ <<
240 select SWIOTLB <<
241 select SYSCTL_EXCEPTION_TRACE <<
242 select THREAD_INFO_IN_TASK <<
243 select TRACE_IRQFLAGS_SUPPORT <<
244 select TTY <<
245 select USER_STACKTRACE_SUPPORT <<
246 select VDSO_GETRANDOM <<
247 select VIRT_CPU_ACCOUNTING <<
248 select ZONE_DMA <<
249 # Note: keep the above list sorted alp <<
250 <<
251 config SCHED_OMIT_FRAME_POINTER <<
252 def_bool y <<
253 <<
254 config PGTABLE_LEVELS <<
255 int <<
256 default 5 <<
257 <<
258 source "kernel/livepatch/Kconfig" <<
259 <<
260 config ARCH_SUPPORTS_KEXEC <<
261 def_bool y <<
262 <<
263 config ARCH_SUPPORTS_KEXEC_FILE <<
264 def_bool y <<
265 <<
266 config ARCH_SUPPORTS_KEXEC_SIG <<
267 def_bool MODULE_SIG_FORMAT <<
268 <<
269 config ARCH_SUPPORTS_KEXEC_PURGATORY <<
270 def_bool y <<
271 <<
272 config ARCH_SUPPORTS_CRASH_DUMP <<
273 def_bool y <<
274 help <<
275 Refer to <file:Documentation/arch/s3 <<
276 This option also enables s390 zfcpdu <<
277 See also <file:Documentation/arch/s3 <<
278 <<
279 menu "Processor type and features" <<
280 <<
281 config HAVE_MARCH_Z10_FEATURES <<
282 def_bool n <<
283 <<
284 config HAVE_MARCH_Z196_FEATURES <<
285 def_bool n <<
286 select HAVE_MARCH_Z10_FEATURES <<
287 <<
288 config HAVE_MARCH_ZEC12_FEATURES <<
289 def_bool n <<
290 select HAVE_MARCH_Z196_FEATURES <<
291 <<
292 config HAVE_MARCH_Z13_FEATURES <<
293 def_bool n <<
294 select HAVE_MARCH_ZEC12_FEATURES <<
295 <<
296 config HAVE_MARCH_Z14_FEATURES <<
297 def_bool n <<
298 select HAVE_MARCH_Z13_FEATURES <<
299 <<
300 config HAVE_MARCH_Z15_FEATURES <<
301 def_bool n <<
302 select HAVE_MARCH_Z14_FEATURES <<
303 <<
304 config HAVE_MARCH_Z16_FEATURES <<
305 def_bool n <<
306 select HAVE_MARCH_Z15_FEATURES <<
307 <<
308 choice <<
309 prompt "Processor type" <<
310 default MARCH_Z196 <<
311 <<
312 config MARCH_Z10 <<
313 bool "IBM System z10" <<
314 select HAVE_MARCH_Z10_FEATURES <<
315 depends on $(cc-option,-march=z10) <<
316 help <<
317 Select this to enable optimizations <<
318 series). This is the oldest machine <<
319 <<
320 config MARCH_Z196 <<
321 bool "IBM zEnterprise 114 and 196" <<
322 select HAVE_MARCH_Z196_FEATURES <<
323 depends on $(cc-option,-march=z196) <<
324 help <<
325 Select this to enable optimizations <<
326 (2818 and 2817 series). The kernel w <<
327 not work on older machines. <<
328 <<
329 config MARCH_ZEC12 <<
330 bool "IBM zBC12 and zEC12" <<
331 select HAVE_MARCH_ZEC12_FEATURES <<
332 depends on $(cc-option,-march=zEC12) <<
333 help <<
334 Select this to enable optimizations <<
335 2827 series). The kernel will be sli <<
336 older machines. <<
337 <<
338 config MARCH_Z13 <<
339 bool "IBM z13s and z13" <<
340 select HAVE_MARCH_Z13_FEATURES <<
341 depends on $(cc-option,-march=z13) <<
342 help <<
343 Select this to enable optimizations <<
344 2964 series). The kernel will be sli <<
345 older machines. <<
346 <<
347 config MARCH_Z14 <<
348 bool "IBM z14 ZR1 and z14" <<
349 select HAVE_MARCH_Z14_FEATURES <<
350 depends on $(cc-option,-march=z14) <<
351 help <<
352 Select this to enable optimizations <<
353 and 3906 series). The kernel will be <<
354 work on older machines. <<
355 <<
356 config MARCH_Z15 <<
357 bool "IBM z15" <<
358 select HAVE_MARCH_Z15_FEATURES <<
359 depends on $(cc-option,-march=z15) <<
360 help <<
361 Select this to enable optimizations <<
362 and 8561 series). The kernel will be <<
363 work on older machines. <<
364 <<
365 config MARCH_Z16 <<
366 bool "IBM z16" <<
367 select HAVE_MARCH_Z16_FEATURES <<
368 depends on $(cc-option,-march=z16) <<
369 help <<
370 Select this to enable optimizations <<
371 3932 series). <<
372 <<
373 endchoice <<
374 <<
375 config MARCH_Z10_TUNE <<
376 def_bool TUNE_Z10 || MARCH_Z10 && TUNE <<
377 <<
378 config MARCH_Z196_TUNE <<
379 def_bool TUNE_Z196 || MARCH_Z196 && TU <<
380 <<
381 config MARCH_ZEC12_TUNE <<
382 def_bool TUNE_ZEC12 || MARCH_ZEC12 && <<
383 <<
384 config MARCH_Z13_TUNE <<
385 def_bool TUNE_Z13 || MARCH_Z13 && TUNE <<
386 <<
387 config MARCH_Z14_TUNE <<
388 def_bool TUNE_Z14 || MARCH_Z14 && TUNE <<
389 <<
390 config MARCH_Z15_TUNE <<
391 def_bool TUNE_Z15 || MARCH_Z15 && TUNE <<
392 <<
393 config MARCH_Z16_TUNE <<
394 def_bool TUNE_Z16 || MARCH_Z16 && TUNE <<
395 <<
396 choice <<
397 prompt "Tune code generation" <<
398 default TUNE_DEFAULT <<
399 help <<
400 Cause the compiler to tune (-mtune) <<
401 This will make the code run faster o <<
402 somewhat slower on other machines. <<
403 This option only changes how the com <<
404 selection of instructions itself, so <<
405 all other machines. <<
406 <<
407 config TUNE_DEFAULT <<
408 bool "Default" <<
409 help <<
410 Tune the generated code for the targ <<
411 will be compiled. <<
412 <<
413 config TUNE_Z10 <<
414 bool "IBM System z10" <<
415 <<
416 config TUNE_Z196 <<
417 bool "IBM zEnterprise 114 and 196" <<
418 depends on $(cc-option,-mtune=z196) <<
419 <<
420 config TUNE_ZEC12 <<
421 bool "IBM zBC12 and zEC12" <<
422 depends on $(cc-option,-mtune=zEC12) <<
423 <<
424 config TUNE_Z13 <<
425 bool "IBM z13s and z13" <<
426 depends on $(cc-option,-mtune=z13) <<
427 <<
428 config TUNE_Z14 <<
429 bool "IBM z14 ZR1 and z14" <<
430 depends on $(cc-option,-mtune=z14) <<
431 <<
432 config TUNE_Z15 <<
433 bool "IBM z15" <<
434 depends on $(cc-option,-mtune=z15) <<
435 <<
436 config TUNE_Z16 <<
437 bool "IBM z16" <<
438 depends on $(cc-option,-mtune=z16) <<
439 <<
440 endchoice <<
441 <<
442 config 64BIT <<
443 def_bool y <<
444 <<
445 config COMMAND_LINE_SIZE <<
446 int "Maximum size of kernel command li <<
447 default 4096 <<
448 range 896 1048576 <<
449 help <<
450 This allows you to specify the maxim <<
451 line. <<
452 <<
453 config COMPAT <<
454 def_bool n <<
455 prompt "Kernel support for 31 bit emul <<
456 select ARCH_WANT_OLD_COMPAT_IPC <<
457 select COMPAT_OLD_SIGACTION <<
458 select HAVE_UID16 <<
459 depends on MULTIUSER <<
460 depends on !CC_IS_CLANG && !LD_IS_LLD <<
461 help <<
462 Select this option if you want to en <<
463 handle system-calls from ELF binarie <<
464 (and some other stuff like libraries <<
465 executing 31 bit applications. <<
466 <<
467 If unsure say N. <<
468 <<
469 config SMP <<
470 def_bool y <<
471 <<
472 config NR_CPUS <<
473 int "Maximum number of CPUs (2-512)" <<
474 range 2 512 <<
475 default "64" <<
476 help <<
477 This allows you to specify the maxim <<
478 kernel will support. The maximum sup <<
479 minimum value which makes sense is 2 <<
480 <<
481 This is purely to save memory - each <<
482 approximately sixteen kilobytes to t <<
483 <<
484 config HOTPLUG_CPU <<
485 def_bool y <<
486 <<
487 config NUMA <<
488 bool "NUMA support" <<
489 depends on SCHED_TOPOLOGY <<
490 default n <<
491 help <<
492 Enable NUMA support <<
493 68
494 This option adds NUMA support to the !! 69 config ZONE_DMA
>> 70 bool
>> 71 default y
495 72
496 config NODES_SHIFT !! 73 config HZ
497 int 74 int
498 depends on NUMA !! 75 default 1000 if CLEOPATRA
499 default "1" !! 76 default 100
500 <<
501 config SCHED_SMT <<
502 def_bool n <<
503 <<
504 config SCHED_MC <<
505 def_bool n <<
506 <<
507 config SCHED_TOPOLOGY <<
508 def_bool y <<
509 prompt "Topology scheduler support" <<
510 select SCHED_SMT <<
511 select SCHED_MC <<
512 help <<
513 Topology scheduler support improves <<
514 making when dealing with machines th <<
515 multiple cores or multiple books. <<
516 <<
517 config SCHED_TOPOLOGY_VERTICAL <<
518 def_bool y <<
519 bool "Use vertical CPU polarization by <<
520 depends on SCHED_TOPOLOGY <<
521 help <<
522 Use vertical CPU polarization by def <<
523 The default CPU polarization is hori <<
524 <<
525 config HIPERDISPATCH_ON <<
526 def_bool y <<
527 bool "Use hiperdispatch on vertical po <<
528 depends on SCHED_TOPOLOGY <<
529 depends on PROC_SYSCTL <<
530 help <<
531 Hiperdispatch aims to improve the CP <<
532 making when using vertical polarizat <<
533 capacities dynamically. Set this opt <<
534 on vertical polarization by default. <<
535 by sysctl's s390.hiperdispatch attri <<
536 <<
537 source "kernel/Kconfig.hz" <<
538 <<
539 config CERT_STORE <<
540 bool "Get user certificates via DIAG32 <<
541 depends on KEYS <<
542 select CRYPTO_LIB_SHA256 <<
543 help <<
544 Enable this option if you want to ac <<
545 certificates via DIAG 0x320. <<
546 <<
547 These certificates will be made avai <<
548 'cert_store'. <<
549 <<
550 config KERNEL_NOBP <<
551 def_bool n <<
552 prompt "Enable modified branch predict <<
553 help <<
554 If this option is selected the kerne <<
555 branch prediction mode if the firmwa <<
556 The modified branch prediction mode <<
557 regard to speculative execution. <<
558 <<
559 With the option enabled the kernel p <<
560 can be used to run the kernel in the <<
561 <<
562 With the option disabled the modifie <<
563 enabled with the "nobp=1" kernel par <<
564 <<
565 If unsure, say N. <<
566 <<
567 config EXPOLINE <<
568 def_bool n <<
569 depends on $(cc-option,-mindirect-bran <<
570 prompt "Avoid speculative indirect bra <<
571 help <<
572 Compile the kernel with the expoline <<
573 against kernel-to-user data leaks by <<
574 branches. <<
575 Requires a compiler with -mindirect- <<
576 protection. The kernel may run slowe <<
577 <<
578 If unsure, say N. <<
579 <<
580 config EXPOLINE_EXTERN <<
581 def_bool EXPOLINE && CC_IS_GCC && GCC_ <<
582 $(success,$(srctree)/arch/s39 <<
583 help <<
584 Generate expolines as external funct <<
585 This option is required for some too <<
586 are enabled. The kernel is compiled <<
587 -mindirect-branch=thunk-extern, whic <<
588 77
589 choice !! 78 config PGTABLE_LEVELS
590 prompt "Expoline default" !! 79 default 2 if SUN3 || COLDFIRE
591 depends on EXPOLINE !! 80 default 3
592 default EXPOLINE_FULL <<
593 <<
594 config EXPOLINE_OFF <<
595 bool "spectre_v2=off" <<
596 <<
597 config EXPOLINE_AUTO <<
598 bool "spectre_v2=auto" <<
599 <<
600 config EXPOLINE_FULL <<
601 bool "spectre_v2=on" <<
602 <<
603 endchoice <<
604 <<
605 config RELOCATABLE <<
606 def_bool y <<
607 help <<
608 This builds a kernel image that reta <<
609 so it can be loaded at an arbitrary <<
610 The relocations make the kernel imag <<
611 10%), but are discarded at runtime. <<
612 Note: this option exists only for do <<
613 not remove it. <<
614 81
615 config RANDOMIZE_BASE !! 82 config MMU
616 bool "Randomize the address of the ker !! 83 bool "MMU-based Paged Memory Management Support"
617 default y 84 default y
618 help 85 help
619 In support of Kernel Address Space L !! 86 Select if you want MMU-based virtualised addressing space
620 this randomizes the address at which !! 87 support by paged memory management. If unsure, say 'Y'.
621 as a security feature that deters ex <<
622 knowledge of the location of kernel <<
623 <<
624 config RANDOMIZE_IDENTITY_BASE <<
625 bool "Randomize the address of the ide <<
626 depends on RANDOMIZE_BASE <<
627 default DEBUG_VM <<
628 help <<
629 The identity mapping base address is <<
630 Allow randomization of that base to <<
631 notion of physical and virtual addre <<
632 That does not have any impact on the <<
633 kernel image is loaded. <<
634 <<
635 If unsure, say N <<
636 <<
637 config KERNEL_IMAGE_BASE <<
638 hex "Kernel image base address" <<
639 range 0x100000 0x1FFFFFE0000000 if !KA <<
640 range 0x100000 0x1BFFFFE0000000 if KAS <<
641 default 0x3FFE0000000 if !KASAN <<
642 default 0x7FFFE0000000 if KASAN <<
643 help <<
644 This is the address at which the ker <<
645 Kernel Address Space Layout Randomiz <<
646 <<
647 In case the Protected virtualization <<
648 Ultravisor imposes a virtual address <<
649 option leads to the kernel image exc <<
650 this option is ignored and the image <<
651 <<
652 If the value of this option leads to <<
653 the virtual memory where other data <<
654 option is ignored and the image is l <<
655 <<
656 endmenu <<
657 <<
658 menu "Memory setup" <<
659 <<
660 config ARCH_SPARSEMEM_ENABLE <<
661 def_bool y <<
662 select SPARSEMEM_VMEMMAP_ENABLE <<
663 select SPARSEMEM_VMEMMAP <<
664 <<
665 config ARCH_SPARSEMEM_DEFAULT <<
666 def_bool y <<
667 <<
668 config MAX_PHYSMEM_BITS <<
669 int "Maximum size of supported physica <<
670 range 42 53 <<
671 default "46" <<
672 help <<
673 This option specifies the maximum su <<
674 in bits. Supported is any size betwe <<
675 Increasing the number of bits also i <<
676 By default 46 bits (64TB) are suppor <<
677 <<
678 config CHECK_STACK <<
679 def_bool y <<
680 depends on !VMAP_STACK <<
681 prompt "Detect kernel stack overflow" <<
682 help <<
683 This option enables the compiler opt <<
684 -mstack-size if they are available. <<
685 it will emit additional code to each <<
686 an illegal operation if the kernel s <<
687 <<
688 Say N if you are unsure. <<
689 <<
690 config STACK_GUARD <<
691 int "Size of the guard area (128-1024) <<
692 range 128 1024 <<
693 depends on CHECK_STACK <<
694 default "256" <<
695 help <<
696 This allows you to specify the size <<
697 end of the kernel stack. If the kern <<
698 area on function entry an illegal op <<
699 needs to be a power of 2. Please kee <<
700 interrupt frame is 184 bytes for 31 <<
701 The minimum size for the stack guard <<
702 512 for 64 bit. <<
703 <<
704 endmenu <<
705 <<
706 menu "I/O subsystem" <<
707 <<
708 config QDIO <<
709 def_tristate y <<
710 prompt "QDIO support" <<
711 help <<
712 This driver provides the Queued Dire <<
713 IBM System z. <<
714 <<
715 To compile this driver as a module, <<
716 module will be called qdio. <<
717 <<
718 If unsure, say Y. <<
719 <<
720 if PCI <<
721 <<
722 config PCI_NR_FUNCTIONS <<
723 int "Maximum number of PCI functions ( <<
724 range 1 4096 <<
725 default "512" <<
726 help <<
727 This allows you to specify the maxim <<
728 this kernel will support. <<
729 88
730 endif # PCI !! 89 config MMU_MOTOROLA
>> 90 bool
731 91
732 config HAS_IOMEM !! 92 config MMU_COLDFIRE
733 def_bool PCI !! 93 bool
734 94
735 config CHSC_SCH !! 95 config MMU_SUN3
736 def_tristate m !! 96 bool
737 prompt "Support for CHSC subchannels" !! 97 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
738 help <<
739 This driver allows usage of CHSC sub <<
740 is usually present on LPAR only. <<
741 The driver creates a device /dev/chs <<
742 obtain I/O configuration information <<
743 to issue asynchronous chsc commands <<
744 You will usually only want to use th <<
745 LPAR designated for system managemen <<
746 <<
747 To compile this driver as a module, <<
748 module will be called chsc_sch. <<
749 <<
750 If unsure, say N. <<
751 98
752 config SCM_BUS !! 99 config KEXEC
753 def_bool y !! 100 bool "kexec system call"
754 prompt "SCM bus driver" !! 101 depends on M68KCLASSIC
>> 102 select KEXEC_CORE
755 help 103 help
756 Bus driver for Storage Class Memory. !! 104 kexec is a system call that implements the ability to shutdown your
>> 105 current kernel, and to start another kernel. It is like a reboot
>> 106 but it is independent of the system firmware. And like a reboot
>> 107 you can start any kernel with it, not just Linux.
757 108
758 config EADM_SCH !! 109 The name comes from the similarity to the exec system call.
759 def_tristate m <<
760 prompt "Support for EADM subchannels" <<
761 depends on SCM_BUS <<
762 help <<
763 This driver allows usage of EADM sub <<
764 as a communication vehicle for SCM i <<
765 110
766 To compile this driver as a module, !! 111 It is an ongoing process to be certain the hardware in a machine
767 module will be called eadm_sch. !! 112 is properly shutdown, so do not be surprised if this code does not
>> 113 initially work for you. As of this writing the exact hardware
>> 114 interface is strongly in flux, so no good recommendation can be
>> 115 made.
768 116
769 config AP !! 117 config BOOTINFO_PROC
770 def_tristate y !! 118 bool "Export bootinfo in procfs"
771 prompt "Support for Adjunct Processors !! 119 depends on KEXEC && M68KCLASSIC
772 help <<
773 This driver allows usage to Adjunct <<
774 the ap bus, cards and queues. Suppor <<
775 the CryptoExpress Cards (CEX). <<
776 <<
777 To compile this driver as a module, <<
778 module will be called ap. <<
779 <<
780 If unsure, say Y (default). <<
781 <<
782 config AP_DEBUG <<
783 def_bool n <<
784 prompt "Enable debug features for Adju <<
785 depends on AP <<
786 help 120 help
787 Say 'Y' here to enable some addition !! 121 Say Y to export the bootinfo used to boot the kernel in a
788 Processor (ap) devices. !! 122 "bootinfo" file in procfs. This is useful with kexec.
789 123
790 There will be some more sysfs attrib !! 124 menu "Platform setup"
791 125
792 Do not enable on production level ke !! 126 source arch/m68k/Kconfig.cpu
793 127
794 If unsure, say N. !! 128 source arch/m68k/Kconfig.machine
795 129
796 config VFIO_CCW !! 130 source arch/m68k/Kconfig.bus
797 def_tristate n <<
798 prompt "Support for VFIO-CCW subchanne <<
799 depends on VFIO <<
800 select VFIO_MDEV <<
801 help <<
802 This driver allows usage of I/O subc <<
803 <<
804 To compile this driver as a module, <<
805 module will be called vfio_ccw. <<
806 <<
807 config VFIO_AP <<
808 def_tristate n <<
809 prompt "VFIO support for AP devices" <<
810 depends on KVM <<
811 depends on VFIO <<
812 depends on AP <<
813 select VFIO_MDEV <<
814 help <<
815 This driver grants access to Adjunct <<
816 via the VFIO mediated device interfa <<
817 <<
818 To compile this driver as a module, <<
819 will be called vfio_ap. <<
820 131
821 endmenu 132 endmenu
822 133
823 config CCW !! 134 menu "Kernel Features"
824 def_bool y <<
825 <<
826 config HAVE_PNETID <<
827 tristate <<
828 default (SMC || CCWGROUP) <<
829 <<
830 menu "Virtualization" <<
831 <<
832 config PFAULT <<
833 def_bool y <<
834 prompt "Pseudo page fault support" <<
835 help <<
836 Select this option, if you want to u <<
837 handling under VM. If running native <<
838 has no effect. If your VM does not s <<
839 pseudo page fault handling will be u <<
840 Note that VM 4.2 supports PFAULT but <<
841 implementation that causes some prob <<
842 Everybody who wants to run Linux und <<
843 this option. <<
844 <<
845 config CMM <<
846 def_tristate n <<
847 prompt "Cooperative memory management" <<
848 help <<
849 Select this option, if you want to e <<
850 to reduce the memory size of the sys <<
851 by allocating pages of memory and pu <<
852 makes sense for a system running und <<
853 will be reused by VM for other guest <<
854 allows an external monitor to balanc <<
855 Everybody who wants to run Linux und <<
856 option. <<
857 <<
858 config CMM_IUCV <<
859 def_bool y <<
860 prompt "IUCV special message interface <<
861 depends on CMM && (SMSGIUCV=y || CMM=S <<
862 help <<
863 Select this option to enable the spe <<
864 the cooperative memory management. <<
865 <<
866 config APPLDATA_BASE <<
867 def_bool n <<
868 prompt "Linux - VM Monitor Stream, bas <<
869 depends on PROC_SYSCTL <<
870 help <<
871 This provides a kernel interface for <<
872 monitor records. The monitor records <<
873 intervals, once the timer is started <<
874 Writing 1 or 0 to /proc/appldata/tim <<
875 i.e. enables or disables monitoring <<
876 A custom interval value (in seconds) <<
877 /proc/appldata/interval. <<
878 <<
879 Defaults are 60 seconds interval and <<
880 The /proc entries can also be read f <<
881 <<
882 config APPLDATA_MEM <<
883 def_tristate m <<
884 prompt "Monitor memory management stat <<
885 depends on APPLDATA_BASE && VM_EVENT_C <<
886 help <<
887 This provides memory management rela <<
888 Stream, like paging/swapping rate, m <<
889 Writing 1 or 0 to /proc/appldata/mem <<
890 APPLDATA monitor record, i.e. enable <<
891 on the z/VM side. <<
892 <<
893 Default is disabled. <<
894 The /proc entry can also be read fro <<
895 <<
896 This can also be compiled as a modul <<
897 appldata_mem.o. <<
898 <<
899 config APPLDATA_OS <<
900 def_tristate m <<
901 prompt "Monitor OS statistics" <<
902 depends on APPLDATA_BASE <<
903 help <<
904 This provides OS related data to the <<
905 CPU utilisation, etc. <<
906 Writing 1 or 0 to /proc/appldata/os <<
907 APPLDATA monitor record, i.e. enable <<
908 on the z/VM side. <<
909 <<
910 Default is disabled. <<
911 This can also be compiled as a modul <<
912 appldata_os.o. <<
913 <<
914 config APPLDATA_NET_SUM <<
915 def_tristate m <<
916 prompt "Monitor overall network statis <<
917 depends on APPLDATA_BASE && NET <<
918 help <<
919 This provides network related data t <<
920 currently there is only a total sum <<
921 per-interface data. <<
922 Writing 1 or 0 to /proc/appldata/net <<
923 APPLDATA monitor record, i.e. enable <<
924 on the z/VM side. <<
925 <<
926 Default is disabled. <<
927 This can also be compiled as a modul <<
928 appldata_net_sum.o. <<
929 <<
930 config S390_HYPFS <<
931 def_bool y <<
932 prompt "s390 hypervisor information" <<
933 help <<
934 This provides several binary files a <<
935 provide accounting information in an <<
936 <<
937 config S390_HYPFS_FS <<
938 def_bool n <<
939 prompt "s390 hypervisor file system su <<
940 select SYS_HYPERVISOR <<
941 depends on S390_HYPFS <<
942 help <<
943 This is a virtual file system intend <<
944 information in an s390 hypervisor en <<
945 is deprecated and should not be used <<
946 <<
947 Say N if you are unsure. <<
948 <<
949 source "arch/s390/kvm/Kconfig" <<
950 <<
951 config S390_GUEST <<
952 def_bool y <<
953 prompt "s390 support for virtio device <<
954 select TTY <<
955 select VIRTUALIZATION <<
956 select VIRTIO <<
957 help <<
958 Enabling this option adds support fo <<
959 drivers on s390. <<
960 <<
961 Select this option if you want to ru <<
962 the KVM hypervisor. <<
963 135
964 endmenu 136 endmenu
965 137
966 config S390_MODULES_SANITY_TEST_HELPERS !! 138 if !MMU
967 def_bool n !! 139 menu "Power management options"
968 <<
969 menu "Selftests" <<
970 140
971 config S390_UNWIND_SELFTEST !! 141 config PM
972 def_tristate n !! 142 bool "Power Management support"
973 depends on KUNIT <<
974 default KUNIT_ALL_TESTS <<
975 prompt "Test unwind functions" <<
976 help <<
977 This option enables s390 specific st <<
978 module. This option is not useful fo <<
979 kernels, but only for kernel develop <<
980 <<
981 Say N if you are unsure. <<
982 <<
983 config S390_KPROBES_SANITY_TEST <<
984 def_tristate n <<
985 prompt "Enable s390 specific kprobes t <<
986 depends on KPROBES <<
987 depends on KUNIT <<
988 help 143 help
989 This option enables an s390 specific !! 144 Support processor power management modes
990 is not useful for distributions or g <<
991 developers working on architecture c <<
992 <<
993 Say N if you are unsure. <<
994 <<
995 config S390_MODULES_SANITY_TEST <<
996 def_tristate n <<
997 depends on KUNIT <<
998 default KUNIT_ALL_TESTS <<
999 prompt "Enable s390 specific modules t <<
1000 select S390_MODULES_SANITY_TEST_HELPE <<
1001 help <<
1002 This option enables an s390 specifi <<
1003 not useful for distributions or gen <<
1004 kernel developers working on archit <<
1005 145
1006 Say N if you are unsure. <<
1007 endmenu 146 endmenu
>> 147 endif
>> 148
>> 149 source "arch/m68k/Kconfig.devices"
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