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Commit | Line | Data |
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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | config MMU |
61d48c2c | 3 | def_bool y |
1da177e4 | 4 | |
2fd92273 HC |
5 | config CPU_BIG_ENDIAN |
6 | def_bool y | |
7 | ||
2b105ff9 | 8 | config LOCKDEP_SUPPORT |
61d48c2c | 9 | def_bool y |
2b105ff9 | 10 | |
5bdc9b44 | 11 | config STACKTRACE_SUPPORT |
61d48c2c | 12 | def_bool y |
5bdc9b44 | 13 | |
f0d1b0b3 | 14 | config ARCH_HAS_ILOG2_U32 |
6f9a3c33 | 15 | def_bool n |
f0d1b0b3 DH |
16 | |
17 | config ARCH_HAS_ILOG2_U64 | |
6f9a3c33 | 18 | def_bool n |
f0d1b0b3 | 19 | |
7e33db4e | 20 | config GENERIC_HWEIGHT |
61d48c2c | 21 | def_bool y |
7e33db4e | 22 | |
c0007f1a | 23 | config GENERIC_BUG |
6f9a3c33 | 24 | def_bool y if BUG |
c0007f1a | 25 | |
52499f40 HC |
26 | config GENERIC_BUG_RELATIVE_POINTERS |
27 | def_bool y | |
28 | ||
b6b40c53 | 29 | config GENERIC_LOCKBREAK |
114b9df4 | 30 | def_bool y if PREEMPTION |
b6b40c53 | 31 | |
402b0862 | 32 | config PGSTE |
6f9a3c33 | 33 | def_bool y if KVM |
402b0862 | 34 | |
843c48fd JG |
35 | config AUDIT_ARCH |
36 | def_bool y | |
37 | ||
ce816fa8 | 38 | config NO_IOPORT_MAP |
c8717a3d JG |
39 | def_bool y |
40 | ||
41 | config PCI_QUIRKS | |
42 | def_bool n | |
43 | ||
2a0a5b22 | 44 | config ARCH_SUPPORTS_UPROBES |
5a79859a | 45 | def_bool y |
2a0a5b22 | 46 | |
5e785963 VG |
47 | config KASAN_SHADOW_OFFSET |
48 | hex | |
49 | depends on KASAN | |
9a39abb7 | 50 | default 0x1C000000000000 |
5e785963 | 51 | |
347a8dc3 | 52 | config S390 |
61d48c2c | 53 | def_bool y |
129975e7 HC |
54 | # |
55 | # Note: keep this list sorted alphabetically | |
56 | # | |
57 | imply IMA_SECURE_AND_OR_TRUSTED_BOOT | |
12700c17 | 58 | select ALTERNATE_USER_ADDRESS_SPACE |
96c0a6a7 | 59 | select ARCH_32BIT_USTAT_F_TINODE |
23fefe11 | 60 | select ARCH_BINFMT_ELF_STATE |
708b1376 | 61 | select ARCH_CORRECT_STACKTRACE_ON_KRETPROBE |
91024b3c AK |
62 | select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM |
63 | select ARCH_ENABLE_MEMORY_HOTREMOVE | |
cebc774f | 64 | select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2 |
2792d84e | 65 | select ARCH_HAS_CURRENT_STACK_POINTER |
399145f9 | 66 | select ARCH_HAS_DEBUG_VM_PGTABLE |
08c8e685 | 67 | select ARCH_HAS_DEBUG_WX |
21266be9 | 68 | select ARCH_HAS_DEVMEM_IS_ALLOWED |
2b68f6ca | 69 | select ARCH_HAS_ELF_RANDOMIZE |
129975e7 | 70 | select ARCH_HAS_FORCE_DMA_UNENCRYPTED |
79962038 | 71 | select ARCH_HAS_FORTIFY_SOURCE |
957e3fac | 72 | select ARCH_HAS_GCOV_PROFILE_ALL |
4eb0716e | 73 | select ARCH_HAS_GIGANTIC_PAGE |
907fa061 | 74 | select ARCH_HAS_KCOV |
e7615c92 | 75 | select ARCH_HAS_MEMBARRIER_SYNC_CORE |
0c9c1d56 | 76 | select ARCH_HAS_MEM_ENCRYPT |
85bf3785 | 77 | select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS |
3010a5ea | 78 | select ARCH_HAS_PTE_SPECIAL |
129975e7 | 79 | select ARCH_HAS_SCALED_CPUTIME |
0490d6d7 | 80 | select ARCH_HAS_SET_DIRECT_MAP |
d2852a22 | 81 | select ARCH_HAS_SET_MEMORY |
ad21fc4f LA |
82 | select ARCH_HAS_STRICT_KERNEL_RWX |
83 | select ARCH_HAS_STRICT_MODULE_RWX | |
aa0d6e70 | 84 | select ARCH_HAS_SYSCALL_WRAPPER |
c42d8c7d | 85 | select ARCH_HAS_UBSAN_SANITIZE_ALL |
4bff8cb5 | 86 | select ARCH_HAS_VDSO_DATA |
0e0d04a8 | 87 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
6beb0009 TG |
88 | select ARCH_INLINE_READ_LOCK |
89 | select ARCH_INLINE_READ_LOCK_BH | |
90 | select ARCH_INLINE_READ_LOCK_IRQ | |
91 | select ARCH_INLINE_READ_LOCK_IRQSAVE | |
0e0d04a8 | 92 | select ARCH_INLINE_READ_TRYLOCK |
6beb0009 TG |
93 | select ARCH_INLINE_READ_UNLOCK |
94 | select ARCH_INLINE_READ_UNLOCK_BH | |
95 | select ARCH_INLINE_READ_UNLOCK_IRQ | |
96 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE | |
0e0d04a8 HC |
97 | select ARCH_INLINE_SPIN_LOCK |
98 | select ARCH_INLINE_SPIN_LOCK_BH | |
99 | select ARCH_INLINE_SPIN_LOCK_IRQ | |
100 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE | |
101 | select ARCH_INLINE_SPIN_TRYLOCK | |
102 | select ARCH_INLINE_SPIN_TRYLOCK_BH | |
103 | select ARCH_INLINE_SPIN_UNLOCK | |
104 | select ARCH_INLINE_SPIN_UNLOCK_BH | |
105 | select ARCH_INLINE_SPIN_UNLOCK_IRQ | |
106 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE | |
6beb0009 TG |
107 | select ARCH_INLINE_WRITE_LOCK |
108 | select ARCH_INLINE_WRITE_LOCK_BH | |
109 | select ARCH_INLINE_WRITE_LOCK_IRQ | |
110 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE | |
0e0d04a8 | 111 | select ARCH_INLINE_WRITE_TRYLOCK |
6beb0009 TG |
112 | select ARCH_INLINE_WRITE_UNLOCK |
113 | select ARCH_INLINE_WRITE_UNLOCK_BH | |
114 | select ARCH_INLINE_WRITE_UNLOCK_IRQ | |
115 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE | |
e991e5bb | 116 | select ARCH_STACKWALK |
36e7fdaa | 117 | select ARCH_SUPPORTS_ATOMIC_RMW |
5d6ad668 | 118 | select ARCH_SUPPORTS_DEBUG_PAGEALLOC |
bb9c14ad | 119 | select ARCH_SUPPORTS_HUGETLBFS |
fbac266f | 120 | select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && CC_IS_CLANG |
a763bc8b | 121 | select ARCH_SUPPORTS_NUMA_BALANCING |
e06f47a1 | 122 | select ARCH_SUPPORTS_PER_VMA_LOCK |
295d8fa9 | 123 | select ARCH_USE_BUILTIN_BSWAP |
efc1d23b | 124 | select ARCH_USE_CMPXCHG_LOCKREF |
ccf7c3fb | 125 | select ARCH_USE_SYM_ANNOTATIONS |
51c2ee6d | 126 | select ARCH_WANTS_NO_INSTR |
d2abfbe4 | 127 | select ARCH_WANT_DEFAULT_BPF_JIT |
6ca6b581 | 128 | select ARCH_WANT_IPC_PARSE_VERSION |
2f0584f3 | 129 | select ARCH_WANT_KERNEL_PMD_MKWRITE |
0b6f1582 | 130 | select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP |
10916706 | 131 | select BUILDTIME_TABLE_SORT |
0e0d04a8 | 132 | select CLONE_BACKWARDS2 |
802ba53e | 133 | select DCACHE_WORD_ACCESS if !KMSAN |
2f9237d4 | 134 | select DMA_OPS if PCI |
5d6a0163 | 135 | select DYNAMIC_FTRACE if FUNCTION_TRACER |
6ef55060 HC |
136 | select FUNCTION_ALIGNMENT_8B if CC_IS_GCC |
137 | select FUNCTION_ALIGNMENT_16B if !CC_IS_GCC | |
129975e7 | 138 | select GENERIC_ALLOCATOR |
8f00b3e2 | 139 | select GENERIC_CPU_AUTOPROBE |
d424986f | 140 | select GENERIC_CPU_VULNERABILITIES |
56e62a73 | 141 | select GENERIC_ENTRY |
4bff8cb5 | 142 | select GENERIC_GETTIMEOFDAY |
9d719d39 | 143 | select GENERIC_PTDUMP |
e80e7813 | 144 | select GENERIC_SMP_IDLE_THREAD |
79c74ecb | 145 | select GENERIC_TIME_VSYSCALL |
eeab78b0 | 146 | select GENERIC_VDSO_TIME_NS |
b43b3fff | 147 | select GENERIC_IOREMAP if PCI |
2a19be61 | 148 | select HAVE_ALIGNED_STRUCT_PAGE |
7a017721 | 149 | select HAVE_ARCH_AUDITSYSCALL |
5a79859a | 150 | select HAVE_ARCH_JUMP_LABEL |
13ddb52c | 151 | select HAVE_ARCH_JUMP_LABEL_RELATIVE |
42db5ed8 | 152 | select HAVE_ARCH_KASAN |
3e39ce26 | 153 | select HAVE_ARCH_KASAN_VMALLOC |
e37b3dd0 | 154 | select HAVE_ARCH_KCSAN |
e41ba111 | 155 | select HAVE_ARCH_KFENCE |
bae1cd36 | 156 | select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET |
c63cb468 | 157 | select HAVE_ARCH_SECCOMP_FILTER |
5614dd92 | 158 | select HAVE_ARCH_SOFT_DIRTY |
b94c0ebb | 159 | select HAVE_ARCH_STACKLEAK |
0e0d04a8 | 160 | select HAVE_ARCH_TRACEHOOK |
5a79859a | 161 | select HAVE_ARCH_TRANSPARENT_HUGEPAGE |
ce3dc447 | 162 | select HAVE_ARCH_VMAP_STACK |
2ff2b7ec | 163 | select HAVE_ASM_MODVERSIONS |
0e0d04a8 HC |
164 | select HAVE_CMPXCHG_DOUBLE |
165 | select HAVE_CMPXCHG_LOCAL | |
0e0d04a8 | 166 | select HAVE_DEBUG_KMEMLEAK |
e1231b0e | 167 | select HAVE_DMA_CONTIGUOUS |
5a79859a | 168 | select HAVE_DYNAMIC_FTRACE |
5740a7c7 | 169 | select HAVE_DYNAMIC_FTRACE_WITH_ARGS |
2ab3a0a9 | 170 | select HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS |
5a79859a | 171 | select HAVE_DYNAMIC_FTRACE_WITH_REGS |
42b01a55 | 172 | select HAVE_EBPF_JIT if HAVE_MARCH_Z196_FEATURES |
9078a549 | 173 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
129975e7 | 174 | select HAVE_FAST_GUP |
d983c89c | 175 | select HAVE_FENTRY |
0e0d04a8 | 176 | select HAVE_FTRACE_MCOUNT_RECORD |
a30b5b03 | 177 | select HAVE_FUNCTION_ARG_ACCESS_API |
73d6eb48 | 178 | select HAVE_FUNCTION_ERROR_INJECTION |
1256e70a | 179 | select HAVE_FUNCTION_GRAPH_RETVAL |
5a79859a HC |
180 | select HAVE_FUNCTION_GRAPH_TRACER |
181 | select HAVE_FUNCTION_TRACER | |
bc00b3ec | 182 | select HAVE_GCC_PLUGINS |
4bff8cb5 | 183 | select HAVE_GENERIC_VDSO |
d460bb6c | 184 | select HAVE_IOREMAP_PROT if PCI |
0e0d04a8 HC |
185 | select HAVE_KERNEL_BZIP2 |
186 | select HAVE_KERNEL_GZIP | |
8e2872ce | 187 | select HAVE_KERNEL_LZ4 |
0e0d04a8 HC |
188 | select HAVE_KERNEL_LZMA |
189 | select HAVE_KERNEL_LZO | |
89b5202e | 190 | select HAVE_KERNEL_UNCOMPRESSED |
0e0d04a8 | 191 | select HAVE_KERNEL_XZ |
7b034d9c | 192 | select HAVE_KERNEL_ZSTD |
0e0d04a8 | 193 | select HAVE_KPROBES |
657480d9 | 194 | select HAVE_KPROBES_ON_FTRACE |
0e0d04a8 | 195 | select HAVE_KRETPROBES |
21042d43 | 196 | select HAVE_LIVEPATCH |
50be6345 | 197 | select HAVE_MEMBLOCK_PHYS_MAP |
786d35d4 | 198 | select HAVE_MOD_ARCH_SPECIFIC |
129975e7 | 199 | select HAVE_NMI |
d983c89c | 200 | select HAVE_NOP_MCOUNT |
eb01d42a | 201 | select HAVE_PCI |
0e0d04a8 | 202 | select HAVE_PERF_EVENTS |
129975e7 HC |
203 | select HAVE_PERF_REGS |
204 | select HAVE_PERF_USER_STACK_DUMP | |
0e0d04a8 | 205 | select HAVE_REGS_AND_STACK_ACCESS_API |
aa137a6d | 206 | select HAVE_RELIABLE_STACKTRACE |
6ca6b581 | 207 | select HAVE_RETHOOK |
9d6d99e3 | 208 | select HAVE_RSEQ |
1254cfbc | 209 | select HAVE_SAMPLE_FTRACE_DIRECT |
890e3dc8 | 210 | select HAVE_SAMPLE_FTRACE_DIRECT_MULTI |
254b2fd0 | 211 | select HAVE_SETUP_PER_CPU_AREA |
cd1a41ce | 212 | select HAVE_SOFTIRQ_ON_OWN_STACK |
0e0d04a8 | 213 | select HAVE_SYSCALL_TRACEPOINTS |
0e0d04a8 | 214 | select HAVE_VIRT_CPU_ACCOUNTING |
2b91ec9f | 215 | select HAVE_VIRT_CPU_ACCOUNTING_IDLE |
eb01d42a CH |
216 | select IOMMU_HELPER if PCI |
217 | select IOMMU_SUPPORT if PCI | |
6ca6b581 | 218 | select MMU_GATHER_MERGE_VMAS |
129975e7 HC |
219 | select MMU_GATHER_NO_GATHER |
220 | select MMU_GATHER_RCU_TABLE_FREE | |
786d35d4 | 221 | select MODULES_USE_ELF_RELA |
eb01d42a | 222 | select NEED_DMA_MAP_STATE if PCI |
254b2fd0 | 223 | select NEED_PER_CPU_EMBED_FIRST_CHUNK |
eb01d42a | 224 | select NEED_SG_DMA_LENGTH if PCI |
7eddd99c | 225 | select OLD_SIGACTION |
93bead43 | 226 | select OLD_SIGSUSPEND3 |
2eac9c2d | 227 | select PCI_DOMAINS if PCI |
eb01d42a | 228 | select PCI_MSI if PCI |
981aa1d3 | 229 | select PCI_MSI_ARCH_FALLBACKS if PCI_MSI |
bb98f396 | 230 | select SPARSE_IRQ |
129975e7 | 231 | select SWIOTLB |
0e0d04a8 | 232 | select SYSCTL_EXCEPTION_TRACE |
d5c352cd | 233 | select THREAD_INFO_IN_TASK |
4aae683f | 234 | select TRACE_IRQFLAGS_SUPPORT |
0563416b | 235 | select TTY |
aa44433a | 236 | select USER_STACKTRACE_SUPPORT |
0e0d04a8 | 237 | select VIRT_CPU_ACCOUNTING |
63703f37 | 238 | select ZONE_DMA |
129975e7 | 239 | # Note: keep the above list sorted alphabetically |
1da177e4 | 240 | |
fca3e357 | 241 | config SCHED_OMIT_FRAME_POINTER |
6f9a3c33 | 242 | def_bool y |
fca3e357 | 243 | |
c81956c9 KS |
244 | config PGTABLE_LEVELS |
245 | int | |
1aea9b3f | 246 | default 5 |
c81956c9 | 247 | |
21042d43 JS |
248 | source "kernel/livepatch/Kconfig" |
249 | ||
75239cf7 ED |
250 | config ARCH_SUPPORTS_KEXEC |
251 | def_bool y | |
252 | ||
253 | config ARCH_SUPPORTS_KEXEC_FILE | |
c1ad12ee | 254 | def_bool y |
75239cf7 ED |
255 | |
256 | config ARCH_SUPPORTS_KEXEC_SIG | |
257 | def_bool MODULE_SIG_FORMAT | |
258 | ||
e6265fe7 | 259 | config ARCH_SUPPORTS_KEXEC_PURGATORY |
c1ad12ee | 260 | def_bool y |
75239cf7 ED |
261 | |
262 | config ARCH_SUPPORTS_CRASH_DUMP | |
263 | def_bool y | |
264 | help | |
d68b4b6f | 265 | Refer to <file:Documentation/arch/s390/zfcpdump.rst> for more details on this. |
75239cf7 | 266 | This option also enables s390 zfcpdump. |
d68b4b6f | 267 | See also <file:Documentation/arch/s390/zfcpdump.rst> |
75239cf7 | 268 | |
843c48fd JG |
269 | menu "Processor type and features" |
270 | ||
843c48fd JG |
271 | config HAVE_MARCH_Z10_FEATURES |
272 | def_bool n | |
843c48fd JG |
273 | |
274 | config HAVE_MARCH_Z196_FEATURES | |
275 | def_bool n | |
276 | select HAVE_MARCH_Z10_FEATURES | |
277 | ||
991c1505 HC |
278 | config HAVE_MARCH_ZEC12_FEATURES |
279 | def_bool n | |
280 | select HAVE_MARCH_Z196_FEATURES | |
281 | ||
f8b2dcbd MS |
282 | config HAVE_MARCH_Z13_FEATURES |
283 | def_bool n | |
284 | select HAVE_MARCH_ZEC12_FEATURES | |
285 | ||
6997c323 MS |
286 | config HAVE_MARCH_Z14_FEATURES |
287 | def_bool n | |
288 | select HAVE_MARCH_Z13_FEATURES | |
289 | ||
a0e22511 MS |
290 | config HAVE_MARCH_Z15_FEATURES |
291 | def_bool n | |
292 | select HAVE_MARCH_Z14_FEATURES | |
293 | ||
e69a7ff8 HC |
294 | config HAVE_MARCH_Z16_FEATURES |
295 | def_bool n | |
296 | select HAVE_MARCH_Z15_FEATURES | |
297 | ||
843c48fd JG |
298 | choice |
299 | prompt "Processor type" | |
7072276e | 300 | default MARCH_Z196 |
1da177e4 | 301 | |
843c48fd JG |
302 | config MARCH_Z10 |
303 | bool "IBM System z10" | |
5a79859a | 304 | select HAVE_MARCH_Z10_FEATURES |
5474080a | 305 | depends on $(cc-option,-march=z10) |
843c48fd | 306 | help |
4efd417f VG |
307 | Select this to enable optimizations for IBM System z10 (2097 and 2098 |
308 | series). This is the oldest machine generation currently supported. | |
843c48fd JG |
309 | |
310 | config MARCH_Z196 | |
311 | bool "IBM zEnterprise 114 and 196" | |
5a79859a | 312 | select HAVE_MARCH_Z196_FEATURES |
5474080a | 313 | depends on $(cc-option,-march=z196) |
843c48fd JG |
314 | help |
315 | Select this to enable optimizations for IBM zEnterprise 114 and 196 | |
316 | (2818 and 2817 series). The kernel will be slightly faster but will | |
317 | not work on older machines. | |
1da177e4 | 318 | |
991c1505 | 319 | config MARCH_ZEC12 |
59471227 | 320 | bool "IBM zBC12 and zEC12" |
5a79859a | 321 | select HAVE_MARCH_ZEC12_FEATURES |
5474080a | 322 | depends on $(cc-option,-march=zEC12) |
991c1505 | 323 | help |
59471227 HC |
324 | Select this to enable optimizations for IBM zBC12 and zEC12 (2828 and |
325 | 2827 series). The kernel will be slightly faster but will not work on | |
326 | older machines. | |
991c1505 | 327 | |
f8b2dcbd | 328 | config MARCH_Z13 |
bb3aa614 | 329 | bool "IBM z13s and z13" |
5a79859a | 330 | select HAVE_MARCH_Z13_FEATURES |
5474080a | 331 | depends on $(cc-option,-march=z13) |
f8b2dcbd | 332 | help |
bb3aa614 HC |
333 | Select this to enable optimizations for IBM z13s and z13 (2965 and |
334 | 2964 series). The kernel will be slightly faster but will not work on | |
335 | older machines. | |
f8b2dcbd | 336 | |
6997c323 | 337 | config MARCH_Z14 |
451239eb | 338 | bool "IBM z14 ZR1 and z14" |
6997c323 | 339 | select HAVE_MARCH_Z14_FEATURES |
5474080a | 340 | depends on $(cc-option,-march=z14) |
6997c323 | 341 | help |
451239eb HC |
342 | Select this to enable optimizations for IBM z14 ZR1 and z14 (3907 |
343 | and 3906 series). The kernel will be slightly faster but will not | |
344 | work on older machines. | |
6997c323 | 345 | |
a0e22511 MS |
346 | config MARCH_Z15 |
347 | bool "IBM z15" | |
348 | select HAVE_MARCH_Z15_FEATURES | |
5474080a | 349 | depends on $(cc-option,-march=z15) |
a0e22511 MS |
350 | help |
351 | Select this to enable optimizations for IBM z15 (8562 | |
352 | and 8561 series). The kernel will be slightly faster but will not | |
353 | work on older machines. | |
354 | ||
e69a7ff8 HC |
355 | config MARCH_Z16 |
356 | bool "IBM z16" | |
357 | select HAVE_MARCH_Z16_FEATURES | |
358 | depends on $(cc-option,-march=z16) | |
359 | help | |
360 | Select this to enable optimizations for IBM z16 (3931 and | |
361 | 3932 series). | |
362 | ||
843c48fd | 363 | endchoice |
1da177e4 | 364 | |
1db9e051 HC |
365 | config MARCH_Z10_TUNE |
366 | def_bool TUNE_Z10 || MARCH_Z10 && TUNE_DEFAULT | |
367 | ||
368 | config MARCH_Z196_TUNE | |
369 | def_bool TUNE_Z196 || MARCH_Z196 && TUNE_DEFAULT | |
370 | ||
371 | config MARCH_ZEC12_TUNE | |
372 | def_bool TUNE_ZEC12 || MARCH_ZEC12 && TUNE_DEFAULT | |
373 | ||
f8b2dcbd MS |
374 | config MARCH_Z13_TUNE |
375 | def_bool TUNE_Z13 || MARCH_Z13 && TUNE_DEFAULT | |
376 | ||
6997c323 MS |
377 | config MARCH_Z14_TUNE |
378 | def_bool TUNE_Z14 || MARCH_Z14 && TUNE_DEFAULT | |
379 | ||
a0e22511 MS |
380 | config MARCH_Z15_TUNE |
381 | def_bool TUNE_Z15 || MARCH_Z15 && TUNE_DEFAULT | |
382 | ||
e69a7ff8 HC |
383 | config MARCH_Z16_TUNE |
384 | def_bool TUNE_Z16 || MARCH_Z16 && TUNE_DEFAULT | |
385 | ||
1db9e051 HC |
386 | choice |
387 | prompt "Tune code generation" | |
388 | default TUNE_DEFAULT | |
389 | help | |
390 | Cause the compiler to tune (-mtune) the generated code for a machine. | |
391 | This will make the code run faster on the selected machine but | |
392 | somewhat slower on other machines. | |
393 | This option only changes how the compiler emits instructions, not the | |
394 | selection of instructions itself, so the resulting kernel will run on | |
395 | all other machines. | |
396 | ||
397 | config TUNE_DEFAULT | |
398 | bool "Default" | |
399 | help | |
400 | Tune the generated code for the target processor for which the kernel | |
401 | will be compiled. | |
402 | ||
1db9e051 HC |
403 | config TUNE_Z10 |
404 | bool "IBM System z10" | |
405 | ||
406 | config TUNE_Z196 | |
407 | bool "IBM zEnterprise 114 and 196" | |
5474080a | 408 | depends on $(cc-option,-mtune=z196) |
1db9e051 HC |
409 | |
410 | config TUNE_ZEC12 | |
411 | bool "IBM zBC12 and zEC12" | |
5474080a | 412 | depends on $(cc-option,-mtune=zEC12) |
1db9e051 | 413 | |
f8b2dcbd | 414 | config TUNE_Z13 |
89d0180a | 415 | bool "IBM z13s and z13" |
5474080a | 416 | depends on $(cc-option,-mtune=z13) |
f8b2dcbd | 417 | |
6997c323 | 418 | config TUNE_Z14 |
89d0180a | 419 | bool "IBM z14 ZR1 and z14" |
5474080a | 420 | depends on $(cc-option,-mtune=z14) |
6997c323 | 421 | |
a0e22511 MS |
422 | config TUNE_Z15 |
423 | bool "IBM z15" | |
5474080a | 424 | depends on $(cc-option,-mtune=z15) |
a0e22511 | 425 | |
e69a7ff8 HC |
426 | config TUNE_Z16 |
427 | bool "IBM z16" | |
428 | depends on $(cc-option,-mtune=z16) | |
429 | ||
1db9e051 HC |
430 | endchoice |
431 | ||
347a8dc3 | 432 | config 64BIT |
6f9a3c33 | 433 | def_bool y |
d9f7a745 | 434 | |
622021cd SS |
435 | config COMMAND_LINE_SIZE |
436 | int "Maximum size of kernel command line" | |
437 | default 4096 | |
438 | range 896 1048576 | |
439 | help | |
440 | This allows you to specify the maximum length of the kernel command | |
441 | line. | |
442 | ||
843c48fd | 443 | config COMPAT |
77ed045e | 444 | def_bool n |
843c48fd | 445 | prompt "Kernel support for 31 bit emulation" |
843c48fd | 446 | select ARCH_WANT_OLD_COMPAT_IPC |
7eddd99c | 447 | select COMPAT_OLD_SIGACTION |
fef747ba | 448 | select HAVE_UID16 |
2813893f | 449 | depends on MULTIUSER |
779df224 | 450 | depends on !CC_IS_CLANG |
843c48fd JG |
451 | help |
452 | Select this option if you want to enable your system kernel to | |
453 | handle system-calls from ELF binaries for 31 bit ESA. This option | |
454 | (and some other stuff like libraries and such) is needed for | |
77ed045e HC |
455 | executing 31 bit applications. |
456 | ||
457 | If unsure say N. | |
843c48fd | 458 | |
1da177e4 | 459 | config SMP |
6f9a3c33 | 460 | def_bool y |
1da177e4 LT |
461 | |
462 | config NR_CPUS | |
5c75a0da HC |
463 | int "Maximum number of CPUs (2-512)" |
464 | range 2 512 | |
5a79859a | 465 | default "64" |
1da177e4 LT |
466 | help |
467 | This allows you to specify the maximum number of CPUs which this | |
5c75a0da | 468 | kernel will support. The maximum supported value is 512 and the |
1da177e4 LT |
469 | minimum value which makes sense is 2. |
470 | ||
471 | This is purely to save memory - each supported CPU adds | |
472 | approximately sixteen kilobytes to the kernel image. | |
473 | ||
474 | config HOTPLUG_CPU | |
6f9a3c33 | 475 | def_bool y |
1da177e4 | 476 | |
3a368f74 PH |
477 | config NUMA |
478 | bool "NUMA support" | |
67626fad | 479 | depends on SCHED_TOPOLOGY |
3a368f74 PH |
480 | default n |
481 | help | |
482 | Enable NUMA support | |
483 | ||
484 | This option adds NUMA support to the kernel. | |
485 | ||
3a368f74 | 486 | config NODES_SHIFT |
701dc81e | 487 | int |
a9ee6cf5 | 488 | depends on NUMA |
701dc81e | 489 | default "1" |
9236b4dd HC |
490 | |
491 | config SCHED_SMT | |
492 | def_bool n | |
c29a7baf | 493 | |
8d11e021 | 494 | config SCHED_MC |
83a24e32 | 495 | def_bool n |
8d11e021 | 496 | |
10ad34bc | 497 | config SCHED_TOPOLOGY |
6f9a3c33 | 498 | def_bool y |
10ad34bc | 499 | prompt "Topology scheduler support" |
10ad34bc | 500 | select SCHED_SMT |
83a24e32 | 501 | select SCHED_MC |
4cb14bc8 | 502 | help |
10ad34bc MS |
503 | Topology scheduler support improves the CPU scheduler's decision |
504 | making when dealing with machines that have multi-threading, | |
505 | multiple cores or multiple books. | |
4cb14bc8 | 506 | |
8636a1f9 | 507 | source "kernel/Kconfig.hz" |
1da177e4 | 508 | |
8cf57d72 AE |
509 | config CERT_STORE |
510 | bool "Get user certificates via DIAG320" | |
511 | depends on KEYS | |
481daa50 | 512 | select CRYPTO_LIB_SHA256 |
8cf57d72 AE |
513 | help |
514 | Enable this option if you want to access user-provided secure boot | |
515 | certificates via DIAG 0x320. | |
516 | ||
517 | These certificates will be made available via the keyring named | |
518 | 'cert_store'. | |
519 | ||
d768bd89 MS |
520 | config KERNEL_NOBP |
521 | def_bool n | |
522 | prompt "Enable modified branch prediction for the kernel by default" | |
523 | help | |
524 | If this option is selected the kernel will switch to a modified | |
525 | branch prediction mode if the firmware interface is available. | |
526 | The modified branch prediction mode improves the behaviour in | |
527 | regard to speculative execution. | |
528 | ||
529 | With the option enabled the kernel parameter "nobp=0" or "nospec" | |
530 | can be used to run the kernel in the normal branch prediction mode. | |
531 | ||
532 | With the option disabled the modified branch prediction mode is | |
533 | enabled with the "nobp=1" kernel parameter. | |
534 | ||
535 | If unsure, say N. | |
536 | ||
f19fbd5e MS |
537 | config EXPOLINE |
538 | def_bool n | |
1d2ad084 | 539 | depends on $(cc-option,-mindirect-branch=thunk) |
f19fbd5e MS |
540 | prompt "Avoid speculative indirect branches in the kernel" |
541 | help | |
542 | Compile the kernel with the expoline compiler options to guard | |
543 | against kernel-to-user data leaks by avoiding speculative indirect | |
544 | branches. | |
545 | Requires a compiler with -mindirect-branch=thunk support for full | |
546 | protection. The kernel may run slower. | |
547 | ||
548 | If unsure, say N. | |
549 | ||
1d2ad084 VG |
550 | config EXPOLINE_EXTERN |
551 | def_bool n | |
552 | depends on EXPOLINE | |
1d2ad084 VG |
553 | depends on CC_IS_GCC && GCC_VERSION >= 110200 |
554 | depends on $(success,$(srctree)/arch/s390/tools/gcc-thunk-extern.sh $(CC)) | |
555 | prompt "Generate expolines as extern functions." | |
556 | help | |
557 | This option is required for some tooling like kpatch. The kernel is | |
558 | compiled with -mindirect-branch=thunk-extern and requires a newer | |
559 | compiler. | |
560 | ||
561 | If unsure, say N. | |
f19fbd5e MS |
562 | |
563 | choice | |
564 | prompt "Expoline default" | |
565 | depends on EXPOLINE | |
566 | default EXPOLINE_FULL | |
567 | ||
568 | config EXPOLINE_OFF | |
569 | bool "spectre_v2=off" | |
570 | ||
6e179d64 | 571 | config EXPOLINE_AUTO |
f19fbd5e MS |
572 | bool "spectre_v2=auto" |
573 | ||
574 | config EXPOLINE_FULL | |
575 | bool "spectre_v2=on" | |
576 | ||
577 | endchoice | |
578 | ||
805bc0bc | 579 | config RELOCATABLE |
80ddf5ce | 580 | def_bool y |
805bc0bc GS |
581 | help |
582 | This builds a kernel image that retains relocation information | |
583 | so it can be loaded at an arbitrary address. | |
584 | The kernel is linked as a position-independent executable (PIE) | |
585 | and contains dynamic relocations which are processed early in the | |
586 | bootup process. | |
587 | The relocations make the kernel image about 15% larger (compressed | |
588 | 10%), but are discarded at runtime. | |
80ddf5ce HC |
589 | Note: this option exists only for documentation purposes, please do |
590 | not remove it. | |
805bc0bc | 591 | |
b2d24b97 GS |
592 | config RANDOMIZE_BASE |
593 | bool "Randomize the address of the kernel image (KASLR)" | |
b2d24b97 GS |
594 | default y |
595 | help | |
596 | In support of Kernel Address Space Layout Randomization (KASLR), | |
597 | this randomizes the address at which the kernel image is loaded, | |
598 | as a security feature that deters exploit attempts relying on | |
599 | knowledge of the location of kernel internals. | |
600 | ||
843c48fd | 601 | endmenu |
1da177e4 | 602 | |
843c48fd | 603 | menu "Memory setup" |
1d057720 | 604 | |
843c48fd | 605 | config ARCH_SPARSEMEM_ENABLE |
6f9a3c33 | 606 | def_bool y |
843c48fd JG |
607 | select SPARSEMEM_VMEMMAP_ENABLE |
608 | select SPARSEMEM_VMEMMAP | |
e65e1fc2 | 609 | |
843c48fd JG |
610 | config ARCH_SPARSEMEM_DEFAULT |
611 | def_bool y | |
1da177e4 | 612 | |
b8402b95 HC |
613 | config MAX_PHYSMEM_BITS |
614 | int "Maximum size of supported physical memory in bits (42-53)" | |
615 | range 42 53 | |
616 | default "46" | |
617 | help | |
618 | This option specifies the maximum supported size of physical memory | |
619 | in bits. Supported is any size between 2^42 (4TB) and 2^53 (8PB). | |
620 | Increasing the number of bits also increases the kernel image size. | |
621 | By default 46 bits (64TB) are supported. | |
622 | ||
1da177e4 | 623 | config CHECK_STACK |
6f9a3c33 | 624 | def_bool y |
ce3dc447 | 625 | depends on !VMAP_STACK |
6f9a3c33 | 626 | prompt "Detect kernel stack overflow" |
1da177e4 LT |
627 | help |
628 | This option enables the compiler option -mstack-guard and | |
629 | -mstack-size if they are available. If the compiler supports them | |
630 | it will emit additional code to each function prolog to trigger | |
631 | an illegal operation if the kernel stack is about to overflow. | |
632 | ||
633 | Say N if you are unsure. | |
634 | ||
635 | config STACK_GUARD | |
636 | int "Size of the guard area (128-1024)" | |
637 | range 128 1024 | |
638 | depends on CHECK_STACK | |
639 | default "256" | |
640 | help | |
641 | This allows you to specify the size of the guard area at the lower | |
642 | end of the kernel stack. If the kernel stack points into the guard | |
643 | area on function entry an illegal operation is triggered. The size | |
644 | needs to be a power of 2. Please keep in mind that the size of an | |
645 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. | |
646 | The minimum size for the stack guard should be 256 for 31 bit and | |
647 | 512 for 64 bit. | |
648 | ||
843c48fd | 649 | endmenu |
3f22ab27 | 650 | |
843c48fd | 651 | menu "I/O subsystem" |
1da177e4 | 652 | |
1da177e4 | 653 | config QDIO |
6f9a3c33 MS |
654 | def_tristate y |
655 | prompt "QDIO support" | |
a7f7f624 | 656 | help |
8129ee16 | 657 | This driver provides the Queued Direct I/O base support for |
efca13bc | 658 | IBM System z. |
1da177e4 LT |
659 | |
660 | To compile this driver as a module, choose M here: the | |
661 | module will be called qdio. | |
662 | ||
663 | If unsure, say Y. | |
664 | ||
c8717a3d JG |
665 | if PCI |
666 | ||
667 | config PCI_NR_FUNCTIONS | |
668 | int "Maximum number of PCI functions (1-4096)" | |
669 | range 1 4096 | |
10e59217 | 670 | default "512" |
c8717a3d JG |
671 | help |
672 | This allows you to specify the maximum number of PCI functions which | |
673 | this kernel will support. | |
674 | ||
8b96d971 | 675 | endif # PCI |
c8717a3d | 676 | |
c8717a3d JG |
677 | config HAS_IOMEM |
678 | def_bool PCI | |
679 | ||
9d92a7e1 | 680 | config CHSC_SCH |
d9c11b1e | 681 | def_tristate m |
6f9a3c33 | 682 | prompt "Support for CHSC subchannels" |
9d92a7e1 CH |
683 | help |
684 | This driver allows usage of CHSC subchannels. A CHSC subchannel | |
685 | is usually present on LPAR only. | |
686 | The driver creates a device /dev/chsc, which may be used to | |
687 | obtain I/O configuration information about the machine and | |
688 | to issue asynchronous chsc commands (DANGEROUS). | |
689 | You will usually only want to use this interface on a special | |
690 | LPAR designated for system management. | |
691 | ||
692 | To compile this driver as a module, choose M here: the | |
693 | module will be called chsc_sch. | |
694 | ||
695 | If unsure, say N. | |
696 | ||
1d1c8f78 SO |
697 | config SCM_BUS |
698 | def_bool y | |
1d1c8f78 SO |
699 | prompt "SCM bus driver" |
700 | help | |
701 | Bus driver for Storage Class Memory. | |
702 | ||
eadb86ab SO |
703 | config EADM_SCH |
704 | def_tristate m | |
705 | prompt "Support for EADM subchannels" | |
706 | depends on SCM_BUS | |
707 | help | |
708 | This driver allows usage of EADM subchannels. EADM subchannels act | |
709 | as a communication vehicle for SCM increments. | |
710 | ||
711 | To compile this driver as a module, choose M here: the | |
712 | module will be called eadm_sch. | |
713 | ||
63f1934d DJS |
714 | config VFIO_CCW |
715 | def_tristate n | |
716 | prompt "Support for VFIO-CCW subchannels" | |
de858a05 | 717 | depends on VFIO |
8bf8c5ee | 718 | select VFIO_MDEV |
63f1934d DJS |
719 | help |
720 | This driver allows usage of I/O subchannels via VFIO-CCW. | |
721 | ||
722 | To compile this driver as a module, choose M here: the | |
723 | module will be called vfio_ccw. | |
724 | ||
1fde5734 TK |
725 | config VFIO_AP |
726 | def_tristate n | |
727 | prompt "VFIO support for AP devices" | |
0f1cbf94 | 728 | depends on KVM |
de858a05 | 729 | depends on VFIO |
929a343b | 730 | depends on ZCRYPT |
de858a05 | 731 | select VFIO_MDEV |
1fde5734 | 732 | help |
4d1f2e45 JH |
733 | This driver grants access to Adjunct Processor (AP) devices |
734 | via the VFIO mediated device interface. | |
1fde5734 | 735 | |
4d1f2e45 JH |
736 | To compile this driver as a module, choose M here: the module |
737 | will be called vfio_ap. | |
1fde5734 | 738 | |
843c48fd JG |
739 | endmenu |
740 | ||
843c48fd JG |
741 | config CCW |
742 | def_bool y | |
743 | ||
b6ef86e9 UB |
744 | config HAVE_PNETID |
745 | tristate | |
746 | default (SMC || CCWGROUP) | |
747 | ||
843c48fd | 748 | menu "Virtualization" |
684de39b | 749 | |
5abb9351 VG |
750 | config PROTECTED_VIRTUALIZATION_GUEST |
751 | def_bool n | |
752 | prompt "Protected virtualization guest support" | |
753 | help | |
754 | Select this option, if you want to be able to run this | |
755 | kernel as a protected virtualization KVM guest. | |
756 | Protected virtualization capable machines have a mini hypervisor | |
757 | located at machine level (an ultravisor). With help of the | |
758 | Ultravisor, KVM will be able to run "protected" VMs, special | |
759 | VMs whose memory and management data are unavailable to KVM. | |
760 | ||
1da177e4 | 761 | config PFAULT |
6f9a3c33 MS |
762 | def_bool y |
763 | prompt "Pseudo page fault support" | |
1da177e4 LT |
764 | help |
765 | Select this option, if you want to use PFAULT pseudo page fault | |
766 | handling under VM. If running native or in LPAR, this option | |
767 | has no effect. If your VM does not support PFAULT, PAGEEX | |
768 | pseudo page fault handling will be used. | |
769 | Note that VM 4.2 supports PFAULT but has a bug in its | |
770 | implementation that causes some problems. | |
771 | Everybody who wants to run Linux under VM != VM4.2 should select | |
772 | this option. | |
773 | ||
1da177e4 | 774 | config CMM |
6f9a3c33 MS |
775 | def_tristate n |
776 | prompt "Cooperative memory management" | |
1da177e4 LT |
777 | help |
778 | Select this option, if you want to enable the kernel interface | |
779 | to reduce the memory size of the system. This is accomplished | |
780 | by allocating pages of memory and put them "on hold". This only | |
781 | makes sense for a system running under VM where the unused pages | |
782 | will be reused by VM for other guest systems. The interface | |
783 | allows an external monitor to balance memory of many systems. | |
784 | Everybody who wants to run Linux under VM should select this | |
785 | option. | |
786 | ||
1da177e4 | 787 | config CMM_IUCV |
6f9a3c33 MS |
788 | def_bool y |
789 | prompt "IUCV special message interface to cooperative memory management" | |
1da177e4 LT |
790 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
791 | help | |
792 | Select this option to enable the special message interface to | |
793 | the cooperative memory management. | |
794 | ||
1da177e4 | 795 | config APPLDATA_BASE |
6f9a3c33 MS |
796 | def_bool n |
797 | prompt "Linux - VM Monitor Stream, base infrastructure" | |
5d3516b3 | 798 | depends on PROC_SYSCTL |
1da177e4 LT |
799 | help |
800 | This provides a kernel interface for creating and updating z/VM APPLDATA | |
801 | monitor records. The monitor records are updated at certain time | |
802 | intervals, once the timer is started. | |
803 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, | |
804 | i.e. enables or disables monitoring on the Linux side. | |
805 | A custom interval value (in seconds) can be written to | |
806 | /proc/appldata/interval. | |
807 | ||
808 | Defaults are 60 seconds interval and timer off. | |
809 | The /proc entries can also be read from, showing the current settings. | |
810 | ||
811 | config APPLDATA_MEM | |
6f9a3c33 MS |
812 | def_tristate m |
813 | prompt "Monitor memory management statistics" | |
62fb2ba3 | 814 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
1da177e4 LT |
815 | help |
816 | This provides memory management related data to the Linux - VM Monitor | |
817 | Stream, like paging/swapping rate, memory utilisation, etc. | |
818 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM | |
819 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
820 | on the z/VM side. | |
821 | ||
822 | Default is disabled. | |
823 | The /proc entry can also be read from, showing the current settings. | |
824 | ||
825 | This can also be compiled as a module, which will be called | |
826 | appldata_mem.o. | |
827 | ||
828 | config APPLDATA_OS | |
6f9a3c33 MS |
829 | def_tristate m |
830 | prompt "Monitor OS statistics" | |
1da177e4 LT |
831 | depends on APPLDATA_BASE |
832 | help | |
833 | This provides OS related data to the Linux - VM Monitor Stream, like | |
834 | CPU utilisation, etc. | |
835 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM | |
836 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
837 | on the z/VM side. | |
838 | ||
839 | Default is disabled. | |
840 | This can also be compiled as a module, which will be called | |
841 | appldata_os.o. | |
842 | ||
843 | config APPLDATA_NET_SUM | |
6f9a3c33 MS |
844 | def_tristate m |
845 | prompt "Monitor overall network statistics" | |
70193af9 | 846 | depends on APPLDATA_BASE && NET |
1da177e4 LT |
847 | help |
848 | This provides network related data to the Linux - VM Monitor Stream, | |
849 | currently there is only a total sum of network I/O statistics, no | |
850 | per-interface data. | |
851 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM | |
852 | APPLDATA monitor record, i.e. enables or disables monitoring this record | |
853 | on the z/VM side. | |
854 | ||
855 | Default is disabled. | |
856 | This can also be compiled as a module, which will be called | |
857 | appldata_net_sum.o. | |
858 | ||
3325b4d8 | 859 | config S390_HYPFS |
6f9a3c33 | 860 | def_bool y |
3325b4d8 HC |
861 | prompt "s390 hypervisor information" |
862 | help | |
863 | This provides several binary files at (debugfs)/s390_hypfs/ to | |
864 | provide accounting information in an s390 hypervisor environment. | |
865 | ||
866 | config S390_HYPFS_FS | |
867 | def_bool n | |
6f9a3c33 | 868 | prompt "s390 hypervisor file system support" |
24bbb1fa | 869 | select SYS_HYPERVISOR |
3325b4d8 | 870 | depends on S390_HYPFS |
24bbb1fa MH |
871 | help |
872 | This is a virtual file system intended to provide accounting | |
3325b4d8 HC |
873 | information in an s390 hypervisor environment. This file system |
874 | is deprecated and should not be used. | |
875 | ||
876 | Say N if you are unsure. | |
24bbb1fa | 877 | |
843c48fd | 878 | source "arch/s390/kvm/Kconfig" |
411ed322 | 879 | |
fa587743 | 880 | config S390_GUEST |
6f9a3c33 | 881 | def_bool y |
510cf5a6 | 882 | prompt "s390 support for virtio devices" |
79b6f7fb | 883 | select TTY |
80629b0b | 884 | select VIRTUALIZATION |
fa587743 | 885 | select VIRTIO |
fa587743 | 886 | help |
bdd1fc27 CH |
887 | Enabling this option adds support for virtio based paravirtual device |
888 | drivers on s390. | |
1da177e4 | 889 | |
20766c08 | 890 | Select this option if you want to run the kernel as a guest under |
bdd1fc27 | 891 | the KVM hypervisor. |
155af2f9 HJP |
892 | |
893 | endmenu | |
badbf397 | 894 | |
90c53187 IL |
895 | config S390_MODULES_SANITY_TEST_HELPERS |
896 | def_bool n | |
897 | ||
badbf397 IL |
898 | menu "Selftests" |
899 | ||
900 | config S390_UNWIND_SELFTEST | |
901 | def_tristate n | |
25d36a85 MD |
902 | depends on KUNIT |
903 | default KUNIT_ALL_TESTS | |
badbf397 IL |
904 | prompt "Test unwind functions" |
905 | help | |
906 | This option enables s390 specific stack unwinder testing kernel | |
907 | module. This option is not useful for distributions or general | |
908 | kernels, but only for kernel developers working on architecture code. | |
909 | ||
910 | Say N if you are unsure. | |
911 | ||
d340d28a SS |
912 | config S390_KPROBES_SANITY_TEST |
913 | def_tristate n | |
914 | prompt "Enable s390 specific kprobes tests" | |
915 | depends on KPROBES | |
916 | depends on KUNIT | |
917 | help | |
918 | This option enables an s390 specific kprobes test module. This option | |
919 | is not useful for distributions or general kernels, but only for kernel | |
920 | developers working on architecture code. | |
921 | ||
922 | Say N if you are unsure. | |
923 | ||
90c53187 IL |
924 | config S390_MODULES_SANITY_TEST |
925 | def_tristate n | |
926 | depends on KUNIT | |
927 | default KUNIT_ALL_TESTS | |
928 | prompt "Enable s390 specific modules tests" | |
929 | select S390_MODULES_SANITY_TEST_HELPERS | |
930 | help | |
931 | This option enables an s390 specific modules test. This option is | |
932 | not useful for distributions or general kernels, but only for | |
933 | kernel developers working on architecture code. | |
934 | ||
935 | Say N if you are unsure. | |
badbf397 | 936 | endmenu |