Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | config MMU |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 2 | def_bool y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | |
Christoph Lameter | 66701b1 | 2007-02-10 01:43:09 -0800 | [diff] [blame] | 4 | config ZONE_DMA |
Heiko Carstens | 69dbb2f | 2011-05-26 09:48:31 +0200 | [diff] [blame] | 5 | def_bool y |
Christoph Lameter | 66701b1 | 2007-02-10 01:43:09 -0800 | [diff] [blame] | 6 | |
Ingo Molnar | 2b105ff | 2006-07-03 00:25:02 -0700 | [diff] [blame] | 7 | config LOCKDEP_SUPPORT |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 8 | def_bool y |
Ingo Molnar | 2b105ff | 2006-07-03 00:25:02 -0700 | [diff] [blame] | 9 | |
Heiko Carstens | 5bdc9b4 | 2006-07-03 00:24:41 -0700 | [diff] [blame] | 10 | config STACKTRACE_SUPPORT |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 11 | def_bool y |
Heiko Carstens | 5bdc9b4 | 2006-07-03 00:24:41 -0700 | [diff] [blame] | 12 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | config RWSEM_GENERIC_SPINLOCK |
| 14 | bool |
| 15 | |
| 16 | config RWSEM_XCHGADD_ALGORITHM |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 17 | def_bool y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 19 | config ARCH_HAS_ILOG2_U32 |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 20 | def_bool n |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 21 | |
| 22 | config ARCH_HAS_ILOG2_U64 |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 23 | def_bool n |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 24 | |
Akinobu Mita | 7e33db4 | 2006-03-26 01:39:34 -0800 | [diff] [blame] | 25 | config GENERIC_HWEIGHT |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 26 | def_bool y |
Akinobu Mita | 7e33db4 | 2006-03-26 01:39:34 -0800 | [diff] [blame] | 27 | |
Heiko Carstens | c0007f1 | 2007-04-27 16:01:42 +0200 | [diff] [blame] | 28 | config GENERIC_BUG |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 29 | def_bool y if BUG |
Heiko Carstens | c0007f1 | 2007-04-27 16:01:42 +0200 | [diff] [blame] | 30 | |
Heiko Carstens | 52499f4 | 2010-02-26 22:37:44 +0100 | [diff] [blame] | 31 | config GENERIC_BUG_RELATIVE_POINTERS |
| 32 | def_bool y |
| 33 | |
FUJITA Tomonori | eca577e | 2010-10-25 16:10:50 +0200 | [diff] [blame] | 34 | config ARCH_DMA_ADDR_T_64BIT |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 35 | def_bool y |
FUJITA Tomonori | eca577e | 2010-10-25 16:10:50 +0200 | [diff] [blame] | 36 | |
Martin Schwidefsky | b6b40c5 | 2008-02-05 16:50:42 +0100 | [diff] [blame] | 37 | config GENERIC_LOCKBREAK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 38 | def_bool y if SMP && PREEMPT |
Martin Schwidefsky | b6b40c5 | 2008-02-05 16:50:42 +0100 | [diff] [blame] | 39 | |
Carsten Otte | 402b086 | 2008-03-25 18:47:10 +0100 | [diff] [blame] | 40 | config PGSTE |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 41 | def_bool y if KVM |
Carsten Otte | 402b086 | 2008-03-25 18:47:10 +0100 | [diff] [blame] | 42 | |
Akinobu Mita | 6a11f75 | 2009-03-31 15:23:17 -0700 | [diff] [blame] | 43 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| 44 | def_bool y |
| 45 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 46 | config KEXEC |
| 47 | def_bool y |
Dave Young | 2965faa | 2015-09-09 15:38:55 -0700 | [diff] [blame] | 48 | select KEXEC_CORE |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 49 | |
| 50 | config AUDIT_ARCH |
| 51 | def_bool y |
| 52 | |
Uwe Kleine-König | ce816fa | 2014-04-07 15:39:19 -0700 | [diff] [blame] | 53 | config NO_IOPORT_MAP |
Jan Glauber | c8717a3 | 2012-11-29 14:38:46 +0100 | [diff] [blame] | 54 | def_bool y |
| 55 | |
| 56 | config PCI_QUIRKS |
| 57 | def_bool n |
| 58 | |
Jan Willeke | 2a0a5b2 | 2014-09-22 16:39:06 +0200 | [diff] [blame] | 59 | config ARCH_SUPPORTS_UPROBES |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 60 | def_bool y |
Jan Willeke | 2a0a5b2 | 2014-09-22 16:39:06 +0200 | [diff] [blame] | 61 | |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 62 | config S390 |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 63 | def_bool y |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 64 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
Heiko Carstens | 93bead4 | 2013-09-06 10:03:30 +0200 | [diff] [blame] | 65 | select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS |
Dan Williams | 21266be | 2015-11-19 18:19:29 -0800 | [diff] [blame] | 66 | select ARCH_HAS_DEVMEM_IS_ALLOWED |
Kees Cook | 2b68f6c | 2015-04-14 15:48:00 -0700 | [diff] [blame] | 67 | select ARCH_HAS_ELF_RANDOMIZE |
Riku Voipio | 957e3fa | 2014-12-12 16:57:44 -0800 | [diff] [blame] | 68 | select ARCH_HAS_GCOV_PROFILE_ALL |
Heiko Carstens | 47523c9 | 2014-12-22 10:07:04 +0100 | [diff] [blame] | 69 | select ARCH_HAS_SG_CHAIN |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 70 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
Thomas Gleixner | 6beb000 | 2009-11-09 15:21:34 +0000 | [diff] [blame] | 71 | select ARCH_INLINE_READ_LOCK |
| 72 | select ARCH_INLINE_READ_LOCK_BH |
| 73 | select ARCH_INLINE_READ_LOCK_IRQ |
| 74 | select ARCH_INLINE_READ_LOCK_IRQSAVE |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 75 | select ARCH_INLINE_READ_TRYLOCK |
Thomas Gleixner | 6beb000 | 2009-11-09 15:21:34 +0000 | [diff] [blame] | 76 | select ARCH_INLINE_READ_UNLOCK |
| 77 | select ARCH_INLINE_READ_UNLOCK_BH |
| 78 | select ARCH_INLINE_READ_UNLOCK_IRQ |
| 79 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 80 | select ARCH_INLINE_SPIN_LOCK |
| 81 | select ARCH_INLINE_SPIN_LOCK_BH |
| 82 | select ARCH_INLINE_SPIN_LOCK_IRQ |
| 83 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE |
| 84 | select ARCH_INLINE_SPIN_TRYLOCK |
| 85 | select ARCH_INLINE_SPIN_TRYLOCK_BH |
| 86 | select ARCH_INLINE_SPIN_UNLOCK |
| 87 | select ARCH_INLINE_SPIN_UNLOCK_BH |
| 88 | select ARCH_INLINE_SPIN_UNLOCK_IRQ |
| 89 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE |
Thomas Gleixner | 6beb000 | 2009-11-09 15:21:34 +0000 | [diff] [blame] | 90 | select ARCH_INLINE_WRITE_LOCK |
| 91 | select ARCH_INLINE_WRITE_LOCK_BH |
| 92 | select ARCH_INLINE_WRITE_LOCK_IRQ |
| 93 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 94 | select ARCH_INLINE_WRITE_TRYLOCK |
Thomas Gleixner | 6beb000 | 2009-11-09 15:21:34 +0000 | [diff] [blame] | 95 | select ARCH_INLINE_WRITE_UNLOCK |
| 96 | select ARCH_INLINE_WRITE_UNLOCK_BH |
| 97 | select ARCH_INLINE_WRITE_UNLOCK_IRQ |
| 98 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 99 | select ARCH_SAVE_PAGE_KEYS if HIBERNATION |
Christian Borntraeger | 36e7fda | 2014-08-05 09:57:51 +0200 | [diff] [blame] | 100 | select ARCH_SUPPORTS_ATOMIC_RMW |
Philipp Hachtmann | a763bc8 | 2015-05-08 17:40:44 +0200 | [diff] [blame] | 101 | select ARCH_SUPPORTS_NUMA_BALANCING |
Christian Borntraeger | 295d8fa | 2015-10-29 01:16:04 +0100 | [diff] [blame] | 102 | select ARCH_USE_BUILTIN_BSWAP |
Heiko Carstens | efc1d23 | 2013-09-05 13:26:17 +0200 | [diff] [blame] | 103 | select ARCH_USE_CMPXCHG_LOCKREF |
Philipp Hachtmann | a763bc8 | 2015-05-08 17:40:44 +0200 | [diff] [blame] | 104 | select ARCH_WANTS_PROT_NUMA_PROT_NONE |
Will Deacon | c1d7e01 | 2012-07-30 14:42:46 -0700 | [diff] [blame] | 105 | select ARCH_WANT_IPC_PARSE_VERSION |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 106 | select BUILDTIME_EXTABLE_SORT |
| 107 | select CLONE_BACKWARDS2 |
Heiko Carstens | 5d6a016 | 2014-08-15 13:16:09 +0200 | [diff] [blame] | 108 | select DYNAMIC_FTRACE if FUNCTION_TRACER |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 109 | select GENERIC_CLOCKEVENTS |
Hendrik Brueckner | 8f00b3e | 2015-02-19 12:22:02 +0100 | [diff] [blame] | 110 | select GENERIC_CPU_AUTOPROBE |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 111 | select GENERIC_CPU_DEVICES if !SMP |
Heiko Carstens | 746479c | 2013-09-18 11:45:36 +0200 | [diff] [blame] | 112 | select GENERIC_FIND_FIRST_BIT |
Thomas Gleixner | e80e781 | 2012-04-20 13:05:52 +0000 | [diff] [blame] | 113 | select GENERIC_SMP_IDLE_THREAD |
Martin Schwidefsky | 79c74ec | 2013-11-22 10:04:53 +0100 | [diff] [blame] | 114 | select GENERIC_TIME_VSYSCALL |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 115 | select HAVE_ALIGNED_STRUCT_PAGE if SLUB |
AKASHI Takahiro | 7a01772 | 2014-02-25 18:16:24 +0900 | [diff] [blame] | 116 | select HAVE_ARCH_AUDITSYSCALL |
Philipp Hachtmann | a763bc8 | 2015-05-08 17:40:44 +0200 | [diff] [blame] | 117 | select HAVE_ARCH_EARLY_PFN_TO_NID |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 118 | select HAVE_ARCH_JUMP_LABEL |
Heiko Carstens | c63cb46 | 2012-07-31 15:37:13 +0200 | [diff] [blame] | 119 | select HAVE_ARCH_SECCOMP_FILTER |
Martin Schwidefsky | 5614dd9 | 2015-04-22 14:47:42 +0200 | [diff] [blame] | 120 | select HAVE_ARCH_SOFT_DIRTY |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 121 | select HAVE_ARCH_TRACEHOOK |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 122 | select HAVE_ARCH_TRANSPARENT_HUGEPAGE |
Heiko Carstens | 77a87f0 | 2015-04-21 16:50:08 +0200 | [diff] [blame] | 123 | select HAVE_BPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 124 | select HAVE_CMPXCHG_DOUBLE |
| 125 | select HAVE_CMPXCHG_LOCAL |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 126 | select HAVE_DEBUG_KMEMLEAK |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 127 | select HAVE_DYNAMIC_FTRACE |
| 128 | select HAVE_DYNAMIC_FTRACE_WITH_REGS |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 129 | select HAVE_FTRACE_MCOUNT_RECORD |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 130 | select HAVE_FUNCTION_GRAPH_TRACER |
| 131 | select HAVE_FUNCTION_TRACER |
Heiko Carstens | 03b8c7b | 2014-03-02 13:09:47 +0100 | [diff] [blame] | 132 | select HAVE_FUTEX_CMPXCHG if FUTEX |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 133 | select HAVE_KERNEL_BZIP2 |
| 134 | select HAVE_KERNEL_GZIP |
Heiko Carstens | 8e2872c | 2013-07-18 15:18:24 +0200 | [diff] [blame] | 135 | select HAVE_KERNEL_LZ4 |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 136 | select HAVE_KERNEL_LZMA |
| 137 | select HAVE_KERNEL_LZO |
| 138 | select HAVE_KERNEL_XZ |
| 139 | select HAVE_KPROBES |
| 140 | select HAVE_KRETPROBES |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 141 | select HAVE_KVM |
Jiri Slaby | 21042d4 | 2015-03-26 10:10:17 +0100 | [diff] [blame] | 142 | select HAVE_LIVEPATCH |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 143 | select HAVE_MEMBLOCK |
| 144 | select HAVE_MEMBLOCK_NODE_MAP |
Philipp Hachtmann | 50be634 | 2014-01-29 18:16:01 +0100 | [diff] [blame] | 145 | select HAVE_MEMBLOCK_PHYS_MAP |
David Howells | 786d35d | 2012-09-28 14:31:03 +0930 | [diff] [blame] | 146 | select HAVE_MOD_ARCH_SPECIFIC |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 147 | select HAVE_OPROFILE |
| 148 | select HAVE_PERF_EVENTS |
| 149 | select HAVE_REGS_AND_STACK_ACCESS_API |
| 150 | select HAVE_SYSCALL_TRACEPOINTS |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 151 | select HAVE_VIRT_CPU_ACCOUNTING |
David Howells | 786d35d | 2012-09-28 14:31:03 +0930 | [diff] [blame] | 152 | select MODULES_USE_ELF_RELA |
Philipp Hachtmann | 50be634 | 2014-01-29 18:16:01 +0100 | [diff] [blame] | 153 | select NO_BOOTMEM |
Al Viro | 7eddd99 | 2012-12-25 19:26:12 -0500 | [diff] [blame] | 154 | select OLD_SIGACTION |
Heiko Carstens | 93bead4 | 2013-09-06 10:03:30 +0200 | [diff] [blame] | 155 | select OLD_SIGSUSPEND3 |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 156 | select SYSCTL_EXCEPTION_TRACE |
Josh Triplett | 0563416 | 2014-02-26 18:13:06 -0800 | [diff] [blame] | 157 | select TTY |
Heiko Carstens | 0e0d04a | 2013-02-06 10:15:55 +0100 | [diff] [blame] | 158 | select VIRT_CPU_ACCOUNTING |
Heiko Carstens | 93bead4 | 2013-09-06 10:03:30 +0200 | [diff] [blame] | 159 | select VIRT_TO_BUS |
Philipp Hachtmann | 3a368f7 | 2014-03-06 18:25:13 +0100 | [diff] [blame] | 160 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | |
Martin Schwidefsky | fca3e35 | 2009-07-07 16:37:10 +0200 | [diff] [blame] | 162 | config SCHED_OMIT_FRAME_POINTER |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 163 | def_bool y |
Martin Schwidefsky | fca3e35 | 2009-07-07 16:37:10 +0200 | [diff] [blame] | 164 | |
Kirill A. Shutemov | c81956c | 2015-04-14 15:46:00 -0700 | [diff] [blame] | 165 | config PGTABLE_LEVELS |
| 166 | int |
Heiko Carstens | c095a94 | 2015-12-28 12:53:51 +0100 | [diff] [blame] | 167 | default 4 |
Kirill A. Shutemov | c81956c | 2015-04-14 15:46:00 -0700 | [diff] [blame] | 168 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | source "init/Kconfig" |
| 170 | |
Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 171 | source "kernel/Kconfig.freezer" |
| 172 | |
Jiri Slaby | 21042d4 | 2015-03-26 10:10:17 +0100 | [diff] [blame] | 173 | source "kernel/livepatch/Kconfig" |
| 174 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 175 | menu "Processor type and features" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 177 | config HAVE_MARCH_Z900_FEATURES |
| 178 | def_bool n |
| 179 | |
| 180 | config HAVE_MARCH_Z990_FEATURES |
| 181 | def_bool n |
| 182 | select HAVE_MARCH_Z900_FEATURES |
| 183 | |
| 184 | config HAVE_MARCH_Z9_109_FEATURES |
| 185 | def_bool n |
| 186 | select HAVE_MARCH_Z990_FEATURES |
| 187 | |
| 188 | config HAVE_MARCH_Z10_FEATURES |
| 189 | def_bool n |
| 190 | select HAVE_MARCH_Z9_109_FEATURES |
| 191 | |
| 192 | config HAVE_MARCH_Z196_FEATURES |
| 193 | def_bool n |
| 194 | select HAVE_MARCH_Z10_FEATURES |
| 195 | |
Heiko Carstens | 991c1505 | 2012-11-13 10:26:37 +0200 | [diff] [blame] | 196 | config HAVE_MARCH_ZEC12_FEATURES |
| 197 | def_bool n |
| 198 | select HAVE_MARCH_Z196_FEATURES |
| 199 | |
Martin Schwidefsky | f8b2dcb | 2015-01-14 17:50:19 +0100 | [diff] [blame] | 200 | config HAVE_MARCH_Z13_FEATURES |
| 201 | def_bool n |
| 202 | select HAVE_MARCH_ZEC12_FEATURES |
| 203 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 204 | choice |
| 205 | prompt "Processor type" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 206 | default MARCH_Z900 |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 207 | |
| 208 | config MARCH_Z900 |
| 209 | bool "IBM zSeries model z800 and z900" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 210 | select HAVE_MARCH_Z900_FEATURES |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 211 | help |
| 212 | Select this to enable optimizations for model z800/z900 (2064 and |
| 213 | 2066 series). This will enable some optimizations that are not |
| 214 | available on older ESA/390 (31 Bit) only CPUs. |
| 215 | |
| 216 | config MARCH_Z990 |
| 217 | bool "IBM zSeries model z890 and z990" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 218 | select HAVE_MARCH_Z990_FEATURES |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 219 | help |
| 220 | Select this to enable optimizations for model z890/z990 (2084 and |
| 221 | 2086 series). The kernel will be slightly faster but will not work |
| 222 | on older machines. |
| 223 | |
| 224 | config MARCH_Z9_109 |
| 225 | bool "IBM System z9" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 226 | select HAVE_MARCH_Z9_109_FEATURES |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 227 | help |
| 228 | Select this to enable optimizations for IBM System z9 (2094 and |
| 229 | 2096 series). The kernel will be slightly faster but will not work |
| 230 | on older machines. |
| 231 | |
| 232 | config MARCH_Z10 |
| 233 | bool "IBM System z10" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 234 | select HAVE_MARCH_Z10_FEATURES |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 235 | help |
| 236 | Select this to enable optimizations for IBM System z10 (2097 and |
| 237 | 2098 series). The kernel will be slightly faster but will not work |
| 238 | on older machines. |
| 239 | |
| 240 | config MARCH_Z196 |
| 241 | bool "IBM zEnterprise 114 and 196" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 242 | select HAVE_MARCH_Z196_FEATURES |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 243 | help |
| 244 | Select this to enable optimizations for IBM zEnterprise 114 and 196 |
| 245 | (2818 and 2817 series). The kernel will be slightly faster but will |
| 246 | not work on older machines. |
| 247 | |
Heiko Carstens | 991c1505 | 2012-11-13 10:26:37 +0200 | [diff] [blame] | 248 | config MARCH_ZEC12 |
Heiko Carstens | 5947122 | 2013-07-24 10:35:33 +0200 | [diff] [blame] | 249 | bool "IBM zBC12 and zEC12" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 250 | select HAVE_MARCH_ZEC12_FEATURES |
Heiko Carstens | 991c1505 | 2012-11-13 10:26:37 +0200 | [diff] [blame] | 251 | help |
Heiko Carstens | 5947122 | 2013-07-24 10:35:33 +0200 | [diff] [blame] | 252 | Select this to enable optimizations for IBM zBC12 and zEC12 (2828 and |
| 253 | 2827 series). The kernel will be slightly faster but will not work on |
| 254 | older machines. |
Heiko Carstens | 991c1505 | 2012-11-13 10:26:37 +0200 | [diff] [blame] | 255 | |
Martin Schwidefsky | f8b2dcb | 2015-01-14 17:50:19 +0100 | [diff] [blame] | 256 | config MARCH_Z13 |
| 257 | bool "IBM z13" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 258 | select HAVE_MARCH_Z13_FEATURES |
Martin Schwidefsky | f8b2dcb | 2015-01-14 17:50:19 +0100 | [diff] [blame] | 259 | help |
| 260 | Select this to enable optimizations for IBM z13 (2964 series). |
| 261 | The kernel will be slightly faster but will not work on older |
| 262 | machines. |
| 263 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 264 | endchoice |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
Heiko Carstens | 1db9e05 | 2013-10-30 12:12:50 +0100 | [diff] [blame] | 266 | config MARCH_Z900_TUNE |
| 267 | def_bool TUNE_Z900 || MARCH_Z900 && TUNE_DEFAULT |
| 268 | |
| 269 | config MARCH_Z990_TUNE |
| 270 | def_bool TUNE_Z990 || MARCH_Z990 && TUNE_DEFAULT |
| 271 | |
| 272 | config MARCH_Z9_109_TUNE |
| 273 | def_bool TUNE_Z9_109 || MARCH_Z9_109 && TUNE_DEFAULT |
| 274 | |
| 275 | config MARCH_Z10_TUNE |
| 276 | def_bool TUNE_Z10 || MARCH_Z10 && TUNE_DEFAULT |
| 277 | |
| 278 | config MARCH_Z196_TUNE |
| 279 | def_bool TUNE_Z196 || MARCH_Z196 && TUNE_DEFAULT |
| 280 | |
| 281 | config MARCH_ZEC12_TUNE |
| 282 | def_bool TUNE_ZEC12 || MARCH_ZEC12 && TUNE_DEFAULT |
| 283 | |
Martin Schwidefsky | f8b2dcb | 2015-01-14 17:50:19 +0100 | [diff] [blame] | 284 | config MARCH_Z13_TUNE |
| 285 | def_bool TUNE_Z13 || MARCH_Z13 && TUNE_DEFAULT |
| 286 | |
Heiko Carstens | 1db9e05 | 2013-10-30 12:12:50 +0100 | [diff] [blame] | 287 | choice |
| 288 | prompt "Tune code generation" |
| 289 | default TUNE_DEFAULT |
| 290 | help |
| 291 | Cause the compiler to tune (-mtune) the generated code for a machine. |
| 292 | This will make the code run faster on the selected machine but |
| 293 | somewhat slower on other machines. |
| 294 | This option only changes how the compiler emits instructions, not the |
| 295 | selection of instructions itself, so the resulting kernel will run on |
| 296 | all other machines. |
| 297 | |
| 298 | config TUNE_DEFAULT |
| 299 | bool "Default" |
| 300 | help |
| 301 | Tune the generated code for the target processor for which the kernel |
| 302 | will be compiled. |
| 303 | |
Heiko Carstens | 1db9e05 | 2013-10-30 12:12:50 +0100 | [diff] [blame] | 304 | config TUNE_Z900 |
| 305 | bool "IBM zSeries model z800 and z900" |
| 306 | |
| 307 | config TUNE_Z990 |
| 308 | bool "IBM zSeries model z890 and z990" |
| 309 | |
| 310 | config TUNE_Z9_109 |
| 311 | bool "IBM System z9" |
| 312 | |
| 313 | config TUNE_Z10 |
| 314 | bool "IBM System z10" |
| 315 | |
| 316 | config TUNE_Z196 |
| 317 | bool "IBM zEnterprise 114 and 196" |
| 318 | |
| 319 | config TUNE_ZEC12 |
| 320 | bool "IBM zBC12 and zEC12" |
| 321 | |
Martin Schwidefsky | f8b2dcb | 2015-01-14 17:50:19 +0100 | [diff] [blame] | 322 | config TUNE_Z13 |
| 323 | bool "IBM z13" |
| 324 | |
Heiko Carstens | 1db9e05 | 2013-10-30 12:12:50 +0100 | [diff] [blame] | 325 | endchoice |
| 326 | |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 327 | config 64BIT |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 328 | def_bool y |
Martin Schwidefsky | d9f7a74 | 2006-09-28 16:55:39 +0200 | [diff] [blame] | 329 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 330 | config COMPAT |
| 331 | def_bool y |
| 332 | prompt "Kernel support for 31 bit emulation" |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 333 | select COMPAT_BINFMT_ELF if BINFMT_ELF |
| 334 | select ARCH_WANT_OLD_COMPAT_IPC |
Al Viro | 7eddd99 | 2012-12-25 19:26:12 -0500 | [diff] [blame] | 335 | select COMPAT_OLD_SIGACTION |
Iulia Manda | 2813893 | 2015-04-15 16:16:41 -0700 | [diff] [blame] | 336 | depends on MULTIUSER |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 337 | help |
| 338 | Select this option if you want to enable your system kernel to |
| 339 | handle system-calls from ELF binaries for 31 bit ESA. This option |
| 340 | (and some other stuff like libraries and such) is needed for |
| 341 | executing 31 bit applications. It is safe to say "Y". |
| 342 | |
| 343 | config SYSVIPC_COMPAT |
| 344 | def_bool y if COMPAT && SYSVIPC |
| 345 | |
| 346 | config KEYS_COMPAT |
| 347 | def_bool y if COMPAT && KEYS |
| 348 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | config SMP |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 350 | def_bool y |
| 351 | prompt "Symmetric multi-processing support" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | ---help--- |
| 353 | This enables support for systems with more than one CPU. If you have |
| 354 | a system with only one CPU, like most personal computers, say N. If |
| 355 | you have a system with more than one CPU, say Y. |
| 356 | |
Robert Graffham | 4a47415 | 2014-01-23 15:55:29 -0800 | [diff] [blame] | 357 | If you say N here, the kernel will run on uni- and multiprocessor |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | machines, but will use only one CPU of a multiprocessor machine. If |
| 359 | you say Y here, the kernel will run on many, but not all, |
Robert Graffham | 4a47415 | 2014-01-23 15:55:29 -0800 | [diff] [blame] | 360 | uniprocessor machines. On a uniprocessor machine, the kernel |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | will run faster if you say N here. |
| 362 | |
Adrian Bunk | 03502fa | 2008-02-03 15:50:21 +0200 | [diff] [blame] | 363 | See also the SMP-HOWTO available at |
| 364 | <http://www.tldp.org/docs.html#howto>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | |
| 366 | Even if you don't know what to do here, say Y. |
| 367 | |
| 368 | config NR_CPUS |
Heiko Carstens | 5c75a0d | 2015-01-28 16:52:01 +0100 | [diff] [blame] | 369 | int "Maximum number of CPUs (2-512)" |
| 370 | range 2 512 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | depends on SMP |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 372 | default "64" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | help |
| 374 | This allows you to specify the maximum number of CPUs which this |
Heiko Carstens | 5c75a0d | 2015-01-28 16:52:01 +0100 | [diff] [blame] | 375 | kernel will support. The maximum supported value is 512 and the |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | minimum value which makes sense is 2. |
| 377 | |
| 378 | This is purely to save memory - each supported CPU adds |
| 379 | approximately sixteen kilobytes to the kernel image. |
| 380 | |
| 381 | config HOTPLUG_CPU |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 382 | def_bool y |
| 383 | prompt "Support for hot-pluggable CPUs" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | depends on SMP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | help |
| 386 | Say Y here to be able to turn CPUs off and on. CPUs |
| 387 | can be controlled through /sys/devices/system/cpu/cpu#. |
| 388 | Say N if you want to disable CPU hotplug. |
| 389 | |
Philipp Hachtmann | 3a368f7 | 2014-03-06 18:25:13 +0100 | [diff] [blame] | 390 | # Some NUMA nodes have memory ranges that span |
| 391 | # other nodes. Even though a pfn is valid and |
| 392 | # between a node's start and end pfns, it may not |
| 393 | # reside on that node. See memmap_init_zone() |
| 394 | # for details. <- They meant memory holes! |
| 395 | config NODES_SPAN_OTHER_NODES |
| 396 | def_bool NUMA |
| 397 | |
| 398 | config NUMA |
| 399 | bool "NUMA support" |
Heiko Carstens | c095a94 | 2015-12-28 12:53:51 +0100 | [diff] [blame] | 400 | depends on SMP && SCHED_TOPOLOGY |
Philipp Hachtmann | 3a368f7 | 2014-03-06 18:25:13 +0100 | [diff] [blame] | 401 | default n |
| 402 | help |
| 403 | Enable NUMA support |
| 404 | |
| 405 | This option adds NUMA support to the kernel. |
| 406 | |
| 407 | An operation mode can be selected by appending |
| 408 | numa=<method> to the kernel command line. |
| 409 | |
| 410 | The default behaviour is identical to appending numa=plain to |
| 411 | the command line. This will create just one node with all |
| 412 | available memory and all CPUs in it. |
| 413 | |
| 414 | config NODES_SHIFT |
| 415 | int "Maximum NUMA nodes (as a power of 2)" |
| 416 | range 1 10 |
| 417 | depends on NUMA |
| 418 | default "4" |
| 419 | help |
| 420 | Specify the maximum number of NUMA nodes available on the target |
| 421 | system. Increases memory reserved to accommodate various tables. |
| 422 | |
Michael Holzheu | c29a7ba | 2014-03-06 18:47:21 +0100 | [diff] [blame] | 423 | menu "Select NUMA modes" |
| 424 | depends on NUMA |
| 425 | |
| 426 | config NUMA_EMU |
| 427 | bool "NUMA emulation" |
| 428 | default y |
| 429 | help |
| 430 | Numa emulation mode will split the available system memory into |
| 431 | equal chunks which then are distributed over the configured number |
| 432 | of nodes in a round-robin manner. |
| 433 | |
| 434 | The number of fake nodes is limited by the number of available memory |
| 435 | chunks (i.e. memory size / fake size) and the number of supported |
| 436 | nodes in the kernel. |
| 437 | |
| 438 | The CPUs are assigned to the nodes in a way that partially respects |
| 439 | the original machine topology (if supported by the machine). |
| 440 | Fair distribution of the CPUs is not guaranteed. |
| 441 | |
| 442 | config EMU_SIZE |
| 443 | hex "NUMA emulation memory chunk size" |
| 444 | default 0x10000000 |
| 445 | range 0x400000 0x100000000 |
| 446 | depends on NUMA_EMU |
| 447 | help |
| 448 | Select the default size by which the memory is chopped and then |
| 449 | assigned to emulated NUMA nodes. |
| 450 | |
| 451 | This can be overridden by specifying |
| 452 | |
| 453 | emu_size=<n> |
| 454 | |
| 455 | on the kernel command line where also suffixes K, M, G, and T are |
| 456 | supported. |
| 457 | |
| 458 | endmenu |
| 459 | |
Heiko Carstens | 9236b4d | 2015-12-28 13:20:43 +0100 | [diff] [blame] | 460 | config SCHED_SMT |
| 461 | def_bool n |
| 462 | |
Heiko Carstens | 8d11e02 | 2010-10-29 16:50:37 +0200 | [diff] [blame] | 463 | config SCHED_MC |
Heiko Carstens | 83a24e3 | 2011-12-27 11:27:09 +0100 | [diff] [blame] | 464 | def_bool n |
Heiko Carstens | 8d11e02 | 2010-10-29 16:50:37 +0200 | [diff] [blame] | 465 | |
Heiko Carstens | 4cb14bc | 2010-08-31 10:28:18 +0200 | [diff] [blame] | 466 | config SCHED_BOOK |
Martin Schwidefsky | 10ad34b | 2015-01-14 17:52:10 +0100 | [diff] [blame] | 467 | def_bool n |
| 468 | |
| 469 | config SCHED_TOPOLOGY |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 470 | def_bool y |
Martin Schwidefsky | 10ad34b | 2015-01-14 17:52:10 +0100 | [diff] [blame] | 471 | prompt "Topology scheduler support" |
Heiko Carstens | 83a24e3 | 2011-12-27 11:27:09 +0100 | [diff] [blame] | 472 | depends on SMP |
Martin Schwidefsky | 10ad34b | 2015-01-14 17:52:10 +0100 | [diff] [blame] | 473 | select SCHED_SMT |
Heiko Carstens | 83a24e3 | 2011-12-27 11:27:09 +0100 | [diff] [blame] | 474 | select SCHED_MC |
Martin Schwidefsky | 10ad34b | 2015-01-14 17:52:10 +0100 | [diff] [blame] | 475 | select SCHED_BOOK |
Heiko Carstens | 4cb14bc | 2010-08-31 10:28:18 +0200 | [diff] [blame] | 476 | help |
Martin Schwidefsky | 10ad34b | 2015-01-14 17:52:10 +0100 | [diff] [blame] | 477 | Topology scheduler support improves the CPU scheduler's decision |
| 478 | making when dealing with machines that have multi-threading, |
| 479 | multiple cores or multiple books. |
Heiko Carstens | 4cb14bc | 2010-08-31 10:28:18 +0200 | [diff] [blame] | 480 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 481 | source kernel/Kconfig.preempt |
| 482 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 483 | source kernel/Kconfig.hz |
| 484 | |
| 485 | endmenu |
| 486 | |
| 487 | menu "Memory setup" |
| 488 | |
| 489 | config ARCH_SPARSEMEM_ENABLE |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 490 | def_bool y |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 491 | select SPARSEMEM_VMEMMAP_ENABLE |
| 492 | select SPARSEMEM_VMEMMAP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 494 | config ARCH_SPARSEMEM_DEFAULT |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 495 | def_bool y |
Al Viro | e65e1fc | 2006-09-12 03:04:40 -0400 | [diff] [blame] | 496 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 497 | config ARCH_SELECT_MEMORY_MODEL |
| 498 | def_bool y |
Heiko Carstens | 0544516 | 2012-05-14 10:12:41 +0200 | [diff] [blame] | 499 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 500 | config ARCH_ENABLE_MEMORY_HOTPLUG |
| 501 | def_bool y if SPARSEMEM |
Heiko Carstens | 0544516 | 2012-05-14 10:12:41 +0200 | [diff] [blame] | 502 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 503 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
| 504 | def_bool y |
Heiko Carstens | 0544516 | 2012-05-14 10:12:41 +0200 | [diff] [blame] | 505 | |
Martin Schwidefsky | ec66ad6 | 2014-02-12 14:16:18 +0100 | [diff] [blame] | 506 | config ARCH_ENABLE_SPLIT_PMD_PTLOCK |
| 507 | def_bool y |
Martin Schwidefsky | ec66ad6 | 2014-02-12 14:16:18 +0100 | [diff] [blame] | 508 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 509 | config FORCE_MAX_ZONEORDER |
| 510 | int |
| 511 | default "9" |
Heiko Carstens | 0544516 | 2012-05-14 10:12:41 +0200 | [diff] [blame] | 512 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 513 | source "mm/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | |
| 515 | config PACK_STACK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 516 | def_bool y |
| 517 | prompt "Pack kernel stack" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | help |
| 519 | This option enables the compiler option -mkernel-backchain if it |
| 520 | is available. If the option is available the compiler supports |
| 521 | the new stack layout which dramatically reduces the minimum stack |
| 522 | frame size. With an old compiler a non-leaf function needs a |
| 523 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With |
| 524 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit |
| 525 | and 24 byte on 64 bit. |
| 526 | |
| 527 | Say Y if you are unsure. |
| 528 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | config CHECK_STACK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 530 | def_bool y |
| 531 | prompt "Detect kernel stack overflow" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | help |
| 533 | This option enables the compiler option -mstack-guard and |
| 534 | -mstack-size if they are available. If the compiler supports them |
| 535 | it will emit additional code to each function prolog to trigger |
| 536 | an illegal operation if the kernel stack is about to overflow. |
| 537 | |
| 538 | Say N if you are unsure. |
| 539 | |
| 540 | config STACK_GUARD |
| 541 | int "Size of the guard area (128-1024)" |
| 542 | range 128 1024 |
| 543 | depends on CHECK_STACK |
| 544 | default "256" |
| 545 | help |
| 546 | This allows you to specify the size of the guard area at the lower |
| 547 | end of the kernel stack. If the kernel stack points into the guard |
| 548 | area on function entry an illegal operation is triggered. The size |
| 549 | needs to be a power of 2. Please keep in mind that the size of an |
| 550 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. |
| 551 | The minimum size for the stack guard should be 256 for 31 bit and |
| 552 | 512 for 64 bit. |
| 553 | |
Jan Glauber | 2c190da | 2011-03-15 17:08:19 +0100 | [diff] [blame] | 554 | config WARN_DYNAMIC_STACK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 555 | def_bool n |
Jan Glauber | 2c190da | 2011-03-15 17:08:19 +0100 | [diff] [blame] | 556 | prompt "Emit compiler warnings for function with dynamic stack usage" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | help |
Jan Glauber | 2c190da | 2011-03-15 17:08:19 +0100 | [diff] [blame] | 558 | This option enables the compiler option -mwarn-dynamicstack. If the |
| 559 | compiler supports this options generates warnings for functions |
| 560 | that dynamically allocate stack space using alloca. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | |
| 562 | Say N if you are unsure. |
| 563 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 564 | endmenu |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 565 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 566 | menu "I/O subsystem" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | config QDIO |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 569 | def_tristate y |
| 570 | prompt "QDIO support" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | ---help--- |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 572 | This driver provides the Queued Direct I/O base support for |
Ursula Braun | efca13b | 2008-04-17 07:46:19 +0200 | [diff] [blame] | 573 | IBM System z. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | |
| 575 | To compile this driver as a module, choose M here: the |
| 576 | module will be called qdio. |
| 577 | |
| 578 | If unsure, say Y. |
| 579 | |
Jan Glauber | c8717a3 | 2012-11-29 14:38:46 +0100 | [diff] [blame] | 580 | menuconfig PCI |
| 581 | bool "PCI support" |
Jan Glauber | c8717a3 | 2012-11-29 14:38:46 +0100 | [diff] [blame] | 582 | select PCI_MSI |
Gerald Schaefer | 8128f23 | 2015-08-27 15:33:03 +0200 | [diff] [blame] | 583 | select IOMMU_SUPPORT |
Jan Glauber | c8717a3 | 2012-11-29 14:38:46 +0100 | [diff] [blame] | 584 | help |
| 585 | Enable PCI support. |
| 586 | |
| 587 | if PCI |
| 588 | |
| 589 | config PCI_NR_FUNCTIONS |
| 590 | int "Maximum number of PCI functions (1-4096)" |
| 591 | range 1 4096 |
| 592 | default "64" |
| 593 | help |
| 594 | This allows you to specify the maximum number of PCI functions which |
| 595 | this kernel will support. |
| 596 | |
Martin Schwidefsky | 1f44a22 | 2013-06-27 09:01:09 +0200 | [diff] [blame] | 597 | config PCI_NR_MSI |
| 598 | int "Maximum number of MSI interrupts (64-32768)" |
| 599 | range 64 32768 |
| 600 | default "256" |
| 601 | help |
| 602 | This defines the number of virtual interrupts the kernel will |
| 603 | provide for MSI interrupts. If you configure your system to have |
| 604 | too few drivers will fail to allocate MSI interrupts for all |
| 605 | PCI devices. |
| 606 | |
Jan Glauber | c8717a3 | 2012-11-29 14:38:46 +0100 | [diff] [blame] | 607 | source "drivers/pci/Kconfig" |
| 608 | source "drivers/pci/pcie/Kconfig" |
| 609 | source "drivers/pci/hotplug/Kconfig" |
| 610 | |
| 611 | endif # PCI |
| 612 | |
| 613 | config PCI_DOMAINS |
| 614 | def_bool PCI |
| 615 | |
| 616 | config HAS_IOMEM |
| 617 | def_bool PCI |
| 618 | |
| 619 | config IOMMU_HELPER |
| 620 | def_bool PCI |
| 621 | |
| 622 | config HAS_DMA |
| 623 | def_bool PCI |
| 624 | select HAVE_DMA_API_DEBUG |
| 625 | |
| 626 | config NEED_SG_DMA_LENGTH |
| 627 | def_bool PCI |
| 628 | |
Jan Glauber | 9163003 | 2012-12-05 15:06:01 +0100 | [diff] [blame] | 629 | config NEED_DMA_MAP_STATE |
| 630 | def_bool PCI |
| 631 | |
Cornelia Huck | 9d92a7e | 2008-07-14 09:59:05 +0200 | [diff] [blame] | 632 | config CHSC_SCH |
Sebastian Ott | d9c11b1 | 2011-01-31 11:30:09 +0100 | [diff] [blame] | 633 | def_tristate m |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 634 | prompt "Support for CHSC subchannels" |
Cornelia Huck | 9d92a7e | 2008-07-14 09:59:05 +0200 | [diff] [blame] | 635 | help |
| 636 | This driver allows usage of CHSC subchannels. A CHSC subchannel |
| 637 | is usually present on LPAR only. |
| 638 | The driver creates a device /dev/chsc, which may be used to |
| 639 | obtain I/O configuration information about the machine and |
| 640 | to issue asynchronous chsc commands (DANGEROUS). |
| 641 | You will usually only want to use this interface on a special |
| 642 | LPAR designated for system management. |
| 643 | |
| 644 | To compile this driver as a module, choose M here: the |
| 645 | module will be called chsc_sch. |
| 646 | |
| 647 | If unsure, say N. |
| 648 | |
Sebastian Ott | 1d1c8f7 | 2012-08-28 16:46:26 +0200 | [diff] [blame] | 649 | config SCM_BUS |
| 650 | def_bool y |
Sebastian Ott | 1d1c8f7 | 2012-08-28 16:46:26 +0200 | [diff] [blame] | 651 | prompt "SCM bus driver" |
| 652 | help |
| 653 | Bus driver for Storage Class Memory. |
| 654 | |
Sebastian Ott | eadb86a | 2012-08-28 16:48:16 +0200 | [diff] [blame] | 655 | config EADM_SCH |
| 656 | def_tristate m |
| 657 | prompt "Support for EADM subchannels" |
| 658 | depends on SCM_BUS |
| 659 | help |
| 660 | This driver allows usage of EADM subchannels. EADM subchannels act |
| 661 | as a communication vehicle for SCM increments. |
| 662 | |
| 663 | To compile this driver as a module, choose M here: the |
| 664 | module will be called eadm_sch. |
| 665 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 666 | endmenu |
| 667 | |
| 668 | menu "Dump support" |
| 669 | |
| 670 | config CRASH_DUMP |
| 671 | bool "kernel crash dumps" |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 672 | depends on SMP |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 673 | select KEXEC |
| 674 | help |
| 675 | Generate crash dump after being started by kexec. |
| 676 | Crash dump kernels are loaded in the main kernel with kexec-tools |
| 677 | into a specially reserved region and then later executed after |
| 678 | a crash by kdump/kexec. |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 679 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
Michael Holzheu | bf28a59 | 2014-04-14 10:38:05 +0200 | [diff] [blame] | 680 | This option also enables s390 zfcpdump. |
| 681 | See also <file:Documentation/s390/zfcpdump.txt> |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 682 | |
| 683 | endmenu |
| 684 | |
| 685 | menu "Executable file formats / Emulations" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | source "fs/Kconfig.binfmt" |
| 688 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 689 | config SECCOMP |
| 690 | def_bool y |
| 691 | prompt "Enable seccomp to safely compute untrusted bytecode" |
| 692 | depends on PROC_FS |
| 693 | help |
| 694 | This kernel feature is useful for number crunching applications |
| 695 | that may need to compute untrusted bytecode during their |
| 696 | execution. By using pipes or other transports made available to |
| 697 | the process as file descriptors supporting the read/write |
| 698 | syscalls, it's possible to isolate those applications in |
| 699 | their own address space using seccomp. Once seccomp is |
| 700 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
| 701 | and the task is only allowed to execute a few safe syscalls |
| 702 | defined by each seccomp mode. |
| 703 | |
| 704 | If unsure, say Y. |
| 705 | |
| 706 | endmenu |
| 707 | |
| 708 | menu "Power Management" |
| 709 | |
| 710 | config ARCH_HIBERNATION_POSSIBLE |
Heiko Carstens | 5a79859 | 2015-02-12 13:08:27 +0100 | [diff] [blame] | 711 | def_bool y |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 712 | |
| 713 | source "kernel/power/Kconfig" |
| 714 | |
| 715 | endmenu |
| 716 | |
| 717 | source "net/Kconfig" |
| 718 | |
| 719 | config PCMCIA |
| 720 | def_bool n |
| 721 | |
| 722 | config CCW |
| 723 | def_bool y |
| 724 | |
| 725 | source "drivers/Kconfig" |
| 726 | |
| 727 | source "fs/Kconfig" |
| 728 | |
| 729 | source "arch/s390/Kconfig.debug" |
| 730 | |
| 731 | source "security/Kconfig" |
| 732 | |
| 733 | source "crypto/Kconfig" |
| 734 | |
| 735 | source "lib/Kconfig" |
| 736 | |
| 737 | menu "Virtualization" |
Heiko Carstens | 684de39 | 2008-03-05 12:37:14 +0100 | [diff] [blame] | 738 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | config PFAULT |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 740 | def_bool y |
| 741 | prompt "Pseudo page fault support" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | help |
| 743 | Select this option, if you want to use PFAULT pseudo page fault |
| 744 | handling under VM. If running native or in LPAR, this option |
| 745 | has no effect. If your VM does not support PFAULT, PAGEEX |
| 746 | pseudo page fault handling will be used. |
| 747 | Note that VM 4.2 supports PFAULT but has a bug in its |
| 748 | implementation that causes some problems. |
| 749 | Everybody who wants to run Linux under VM != VM4.2 should select |
| 750 | this option. |
| 751 | |
| 752 | config SHARED_KERNEL |
Heiko Carstens | 0eccc78 | 2012-09-25 14:53:15 +0200 | [diff] [blame] | 753 | bool "VM shared kernel support" |
| 754 | depends on !JUMP_LABEL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | help |
| 756 | Select this option, if you want to share the text segment of the |
| 757 | Linux kernel between different VM guests. This reduces memory |
| 758 | usage with lots of guests but greatly increases kernel size. |
Heiko Carstens | 9c9c176 | 2007-03-05 23:35:45 +0100 | [diff] [blame] | 759 | Also if a kernel was IPL'ed from a shared segment the kexec system |
| 760 | call will not work. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | You should only select this option if you know what you are |
| 762 | doing and want to exploit this feature. |
| 763 | |
| 764 | config CMM |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 765 | def_tristate n |
| 766 | prompt "Cooperative memory management" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | help |
| 768 | Select this option, if you want to enable the kernel interface |
| 769 | to reduce the memory size of the system. This is accomplished |
| 770 | by allocating pages of memory and put them "on hold". This only |
| 771 | makes sense for a system running under VM where the unused pages |
| 772 | will be reused by VM for other guest systems. The interface |
| 773 | allows an external monitor to balance memory of many systems. |
| 774 | Everybody who wants to run Linux under VM should select this |
| 775 | option. |
| 776 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | config CMM_IUCV |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 778 | def_bool y |
| 779 | prompt "IUCV special message interface to cooperative memory management" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
| 781 | help |
| 782 | Select this option to enable the special message interface to |
| 783 | the cooperative memory management. |
| 784 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | config APPLDATA_BASE |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 786 | def_bool n |
| 787 | prompt "Linux - VM Monitor Stream, base infrastructure" |
Martin Schwidefsky | c185b78 | 2008-12-25 13:39:25 +0100 | [diff] [blame] | 788 | depends on PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | help |
| 790 | This provides a kernel interface for creating and updating z/VM APPLDATA |
| 791 | monitor records. The monitor records are updated at certain time |
| 792 | intervals, once the timer is started. |
| 793 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, |
| 794 | i.e. enables or disables monitoring on the Linux side. |
| 795 | A custom interval value (in seconds) can be written to |
| 796 | /proc/appldata/interval. |
| 797 | |
| 798 | Defaults are 60 seconds interval and timer off. |
| 799 | The /proc entries can also be read from, showing the current settings. |
| 800 | |
| 801 | config APPLDATA_MEM |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 802 | def_tristate m |
| 803 | prompt "Monitor memory management statistics" |
Al Viro | 62fb2ba | 2006-12-13 00:34:59 -0800 | [diff] [blame] | 804 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | help |
| 806 | This provides memory management related data to the Linux - VM Monitor |
| 807 | Stream, like paging/swapping rate, memory utilisation, etc. |
| 808 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM |
| 809 | APPLDATA monitor record, i.e. enables or disables monitoring this record |
| 810 | on the z/VM side. |
| 811 | |
| 812 | Default is disabled. |
| 813 | The /proc entry can also be read from, showing the current settings. |
| 814 | |
| 815 | This can also be compiled as a module, which will be called |
| 816 | appldata_mem.o. |
| 817 | |
| 818 | config APPLDATA_OS |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 819 | def_tristate m |
| 820 | prompt "Monitor OS statistics" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | depends on APPLDATA_BASE |
| 822 | help |
| 823 | This provides OS related data to the Linux - VM Monitor Stream, like |
| 824 | CPU utilisation, etc. |
| 825 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM |
| 826 | APPLDATA monitor record, i.e. enables or disables monitoring this record |
| 827 | on the z/VM side. |
| 828 | |
| 829 | Default is disabled. |
| 830 | This can also be compiled as a module, which will be called |
| 831 | appldata_os.o. |
| 832 | |
| 833 | config APPLDATA_NET_SUM |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 834 | def_tristate m |
| 835 | prompt "Monitor overall network statistics" |
Sachin Sant | 70193af | 2009-03-26 15:24:00 +0100 | [diff] [blame] | 836 | depends on APPLDATA_BASE && NET |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | help |
| 838 | This provides network related data to the Linux - VM Monitor Stream, |
| 839 | currently there is only a total sum of network I/O statistics, no |
| 840 | per-interface data. |
| 841 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM |
| 842 | APPLDATA monitor record, i.e. enables or disables monitoring this record |
| 843 | on the z/VM side. |
| 844 | |
| 845 | Default is disabled. |
| 846 | This can also be compiled as a module, which will be called |
| 847 | appldata_net_sum.o. |
| 848 | |
Michael Holzheu | 24bbb1f | 2006-06-23 02:05:06 -0700 | [diff] [blame] | 849 | config S390_HYPFS_FS |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 850 | def_bool y |
| 851 | prompt "s390 hypervisor file system support" |
Michael Holzheu | 24bbb1f | 2006-06-23 02:05:06 -0700 | [diff] [blame] | 852 | select SYS_HYPERVISOR |
Michael Holzheu | 24bbb1f | 2006-06-23 02:05:06 -0700 | [diff] [blame] | 853 | help |
| 854 | This is a virtual file system intended to provide accounting |
| 855 | information in an s390 hypervisor environment. |
| 856 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 857 | source "arch/s390/kvm/Kconfig" |
Michael Holzheu | 411ed32 | 2007-04-27 16:01:49 +0200 | [diff] [blame] | 858 | |
Carsten Otte | fa58774 | 2008-03-25 18:47:44 +0100 | [diff] [blame] | 859 | config S390_GUEST |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 860 | def_bool y |
Kees Cook | 510cf5a | 2012-10-02 11:16:42 -0700 | [diff] [blame] | 861 | prompt "s390 support for virtio devices" |
Chen Gang | 79b6f7f | 2013-07-23 16:26:08 +0800 | [diff] [blame] | 862 | select TTY |
Christian Borntraeger | 80629b0 | 2011-06-22 16:24:07 +0200 | [diff] [blame] | 863 | select VIRTUALIZATION |
Carsten Otte | fa58774 | 2008-03-25 18:47:44 +0100 | [diff] [blame] | 864 | select VIRTIO |
Christian Borntraeger | faeba830 | 2008-06-20 15:24:18 +0200 | [diff] [blame] | 865 | select VIRTIO_CONSOLE |
Carsten Otte | fa58774 | 2008-03-25 18:47:44 +0100 | [diff] [blame] | 866 | help |
Cornelia Huck | bdd1fc2 | 2012-08-27 12:56:48 +0200 | [diff] [blame] | 867 | Enabling this option adds support for virtio based paravirtual device |
| 868 | drivers on s390. |
| 869 | |
Christian Borntraeger | 20766c0 | 2008-08-29 13:30:56 +0200 | [diff] [blame] | 870 | Select this option if you want to run the kernel as a guest under |
Cornelia Huck | bdd1fc2 | 2012-08-27 12:56:48 +0200 | [diff] [blame] | 871 | the KVM hypervisor. |
Heiko Carstens | bcf5cef | 2009-06-12 10:26:26 +0200 | [diff] [blame] | 872 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | endmenu |