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_32BIT_OFF_T
>> 6 select ARCH_HAS_BINFMT_FLAT
>> 7 select ARCH_HAS_DMA_PREP_COHERENT if HAS_DMA && MMU && !COLDFIRE
>> 8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
>> 9 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
>> 10 select ARCH_NO_PREEMPT if !COLDFIRE
>> 11 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
>> 12 select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE
>> 13 select HAVE_IDE
>> 14 select HAVE_AOUT if MMU
>> 15 select HAVE_ASM_MODVERSIONS
>> 16 select HAVE_DEBUG_BUGVERBOSE
>> 17 select GENERIC_IRQ_SHOW
>> 18 select GENERIC_ATOMIC64
>> 19 select NO_DMA if !MMU && !COLDFIRE
>> 20 select HAVE_UID16
>> 21 select VIRT_TO_BUS
>> 22 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
>> 23 select GENERIC_CPU_DEVICES
>> 24 select GENERIC_IOMAP
>> 25 select GENERIC_STRNCPY_FROM_USER if MMU
>> 26 select GENERIC_STRNLEN_USER if MMU
>> 27 select ARCH_WANT_IPC_PARSE_VERSION
>> 28 select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
>> 29 select HAVE_MOD_ARCH_SPECIFIC
>> 30 select MODULES_USE_ELF_REL
>> 31 select MODULES_USE_ELF_RELA
>> 32 select OLD_SIGSUSPEND3
>> 33 select OLD_SIGACTION
>> 34 select MMU_GATHER_NO_RANGE if MMU
4 35
5 config CPU_BIG_ENDIAN 36 config CPU_BIG_ENDIAN
6 def_bool y 37 def_bool y
7 38
8 config LOCKDEP_SUPPORT <<
9 def_bool y <<
10 <<
11 config STACKTRACE_SUPPORT <<
12 def_bool y <<
13 <<
14 config ARCH_HAS_ILOG2_U32 39 config ARCH_HAS_ILOG2_U32
15 def_bool n !! 40 bool
16 41
17 config ARCH_HAS_ILOG2_U64 42 config ARCH_HAS_ILOG2_U64
18 def_bool n !! 43 bool
19 <<
20 config ARCH_PROC_KCORE_TEXT <<
21 def_bool y <<
22 44
23 config GENERIC_HWEIGHT 45 config GENERIC_HWEIGHT
24 def_bool !HAVE_MARCH_Z196_FEATURES !! 46 bool
25 !! 47 default y
26 config GENERIC_BUG <<
27 def_bool y if BUG <<
28 <<
29 config GENERIC_BUG_RELATIVE_POINTERS <<
30 def_bool y <<
31 48
32 config GENERIC_LOCKBREAK !! 49 config GENERIC_CALIBRATE_DELAY
33 def_bool y if PREEMPTION !! 50 bool
>> 51 default y
34 52
35 config PGSTE !! 53 config GENERIC_CSUM
36 def_bool y if KVM !! 54 bool
37 55
38 config AUDIT_ARCH !! 56 config TIME_LOW_RES
39 def_bool y !! 57 bool
>> 58 default y
40 59
41 config NO_IOPORT_MAP 60 config NO_IOPORT_MAP
42 def_bool y 61 def_bool y
43 62
44 config PCI_QUIRKS !! 63 config ZONE_DMA
45 def_bool n !! 64 bool
46 !! 65 default y
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 <<
494 This option adds NUMA support to the <<
495 66
496 config NODES_SHIFT !! 67 config HZ
497 int 68 int
498 depends on NUMA !! 69 default 1000 if CLEOPATRA
499 default "1" !! 70 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 <<
589 choice <<
590 prompt "Expoline default" <<
591 depends on EXPOLINE <<
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 71
603 endchoice !! 72 config PGTABLE_LEVELS
604 !! 73 default 2 if SUN3 || COLDFIRE
605 config RELOCATABLE !! 74 default 3
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 75
615 config RANDOMIZE_BASE !! 76 config MMU
616 bool "Randomize the address of the ker !! 77 bool "MMU-based Paged Memory Management Support"
617 default y 78 default y
618 help 79 help
619 In support of Kernel Address Space L !! 80 Select if you want MMU-based virtualised addressing space
620 this randomizes the address at which !! 81 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 <<
730 endif # PCI <<
731 <<
732 config HAS_IOMEM <<
733 def_bool PCI <<
734 82
735 config CHSC_SCH !! 83 config MMU_MOTOROLA
736 def_tristate m !! 84 bool
737 prompt "Support for CHSC subchannels" <<
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 85
747 To compile this driver as a module, !! 86 config MMU_COLDFIRE
748 module will be called chsc_sch. !! 87 bool
749 88
750 If unsure, say N. !! 89 config MMU_SUN3
>> 90 bool
>> 91 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
751 92
752 config SCM_BUS !! 93 config KEXEC
753 def_bool y !! 94 bool "kexec system call"
754 prompt "SCM bus driver" !! 95 depends on M68KCLASSIC
>> 96 select KEXEC_CORE
755 help 97 help
756 Bus driver for Storage Class Memory. !! 98 kexec is a system call that implements the ability to shutdown your
>> 99 current kernel, and to start another kernel. It is like a reboot
>> 100 but it is independent of the system firmware. And like a reboot
>> 101 you can start any kernel with it, not just Linux.
757 102
758 config EADM_SCH !! 103 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 <<
765 104
766 To compile this driver as a module, !! 105 It is an ongoing process to be certain the hardware in a machine
767 module will be called eadm_sch. !! 106 is properly shutdown, so do not be surprised if this code does not
>> 107 initially work for you. As of this writing the exact hardware
>> 108 interface is strongly in flux, so no good recommendation can be
>> 109 made.
768 110
769 config AP !! 111 config BOOTINFO_PROC
770 def_tristate y !! 112 bool "Export bootinfo in procfs"
771 prompt "Support for Adjunct Processors !! 113 depends on KEXEC && M68KCLASSIC
772 help 114 help
773 This driver allows usage to Adjunct !! 115 Say Y to export the bootinfo used to boot the kernel in a
774 the ap bus, cards and queues. Suppor !! 116 "bootinfo" file in procfs. This is useful with kexec.
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 <<
787 Say 'Y' here to enable some addition <<
788 Processor (ap) devices. <<
789 <<
790 There will be some more sysfs attrib <<
791 <<
792 Do not enable on production level ke <<
793 117
794 If unsure, say N. !! 118 menu "Platform setup"
795 119
796 config VFIO_CCW !! 120 source "arch/m68k/Kconfig.cpu"
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. <<
806 121
807 config VFIO_AP !! 122 source "arch/m68k/Kconfig.machine"
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 <<
817 123
818 To compile this driver as a module, !! 124 source "arch/m68k/Kconfig.bus"
819 will be called vfio_ap. <<
820 125
821 endmenu 126 endmenu
822 127
823 config CCW !! 128 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. <<
963 129
964 endmenu 130 endmenu
965 131
966 config S390_MODULES_SANITY_TEST_HELPERS !! 132 if !MMU
967 def_bool n !! 133 menu "Power management options"
968 <<
969 menu "Selftests" <<
970 134
971 config S390_UNWIND_SELFTEST !! 135 config PM
972 def_tristate n !! 136 bool "Power Management support"
973 depends on KUNIT <<
974 default KUNIT_ALL_TESTS <<
975 prompt "Test unwind functions" <<
976 help 137 help
977 This option enables s390 specific st !! 138 Support processor power management modes
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 <<
989 This option enables an s390 specific <<
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 139
1006 Say N if you are unsure. <<
1007 endmenu 140 endmenu
>> 141 endif
>> 142
>> 143 source "arch/m68k/Kconfig.devices"
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