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 | |
Heiko Carstens | a3afe70 | 2008-02-05 16:50:45 +0100 | [diff] [blame] | 13 | config HAVE_LATENCYTOP_SUPPORT |
| 14 | def_bool y |
| 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | config RWSEM_GENERIC_SPINLOCK |
| 17 | bool |
| 18 | |
| 19 | config RWSEM_XCHGADD_ALGORITHM |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 20 | def_bool y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 22 | config ARCH_HAS_ILOG2_U32 |
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 | |
| 25 | config ARCH_HAS_ILOG2_U64 |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 26 | def_bool n |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 27 | |
Akinobu Mita | 7e33db4 | 2006-03-26 01:39:34 -0800 | [diff] [blame] | 28 | config GENERIC_HWEIGHT |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 29 | def_bool y |
Akinobu Mita | 7e33db4 | 2006-03-26 01:39:34 -0800 | [diff] [blame] | 30 | |
Heiko Carstens | c0007f1 | 2007-04-27 16:01:42 +0200 | [diff] [blame] | 31 | config GENERIC_BUG |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 32 | def_bool y if BUG |
Heiko Carstens | c0007f1 | 2007-04-27 16:01:42 +0200 | [diff] [blame] | 33 | |
Heiko Carstens | 52499f4 | 2010-02-26 22:37:44 +0100 | [diff] [blame] | 34 | config GENERIC_BUG_RELATIVE_POINTERS |
| 35 | def_bool y |
| 36 | |
Al Viro | 23db764 | 2007-02-11 18:15:29 +0000 | [diff] [blame] | 37 | config NO_IOMEM |
Al Viro | 5ea8176 | 2007-02-11 15:41:31 +0000 | [diff] [blame] | 38 | def_bool y |
| 39 | |
Heiko Carstens | 411f0f3 | 2007-05-06 14:49:09 -0700 | [diff] [blame] | 40 | config NO_DMA |
| 41 | def_bool y |
| 42 | |
FUJITA Tomonori | eca577e | 2010-10-25 16:10:50 +0200 | [diff] [blame] | 43 | config ARCH_DMA_ADDR_T_64BIT |
| 44 | def_bool 64BIT |
| 45 | |
Martin Schwidefsky | b6b40c5 | 2008-02-05 16:50:42 +0100 | [diff] [blame] | 46 | config GENERIC_LOCKBREAK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 47 | def_bool y if SMP && PREEMPT |
Martin Schwidefsky | b6b40c5 | 2008-02-05 16:50:42 +0100 | [diff] [blame] | 48 | |
Carsten Otte | 402b086 | 2008-03-25 18:47:10 +0100 | [diff] [blame] | 49 | config PGSTE |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 50 | def_bool y if KVM |
Carsten Otte | 402b086 | 2008-03-25 18:47:10 +0100 | [diff] [blame] | 51 | |
Akinobu Mita | 6a11f75 | 2009-03-31 15:23:17 -0700 | [diff] [blame] | 52 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| 53 | def_bool y |
| 54 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 55 | config KEXEC |
| 56 | def_bool y |
| 57 | |
| 58 | config AUDIT_ARCH |
| 59 | def_bool y |
| 60 | |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 61 | config S390 |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 62 | def_bool y |
Heiko Carstens | ca9fc75 | 2008-12-25 13:38:39 +0100 | [diff] [blame] | 63 | select USE_GENERIC_SMP_HELPERS if SMP |
Martin Schwidefsky | 5d3b56f | 2012-03-23 11:13:07 +0100 | [diff] [blame] | 64 | select GENERIC_CPU_DEVICES if !SMP |
Heiko Carstens | ed6bb61 | 2009-01-14 14:14:01 +0100 | [diff] [blame] | 65 | select HAVE_SYSCALL_WRAPPERS |
Heiko Carstens | 5d360a7 | 2008-12-25 13:38:56 +0100 | [diff] [blame] | 66 | select HAVE_FUNCTION_TRACER |
Heiko Carstens | 8b4488f | 2009-06-12 10:26:45 +0200 | [diff] [blame] | 67 | select HAVE_FUNCTION_TRACE_MCOUNT_TEST |
Heiko Carstens | dfd9f7a | 2009-06-12 10:26:44 +0200 | [diff] [blame] | 68 | select HAVE_FTRACE_MCOUNT_RECORD |
Heiko Carstens | b25c477 | 2010-10-29 16:50:42 +0200 | [diff] [blame] | 69 | select HAVE_C_RECORDMCOUNT |
Josh Stone | 6670000 | 2009-08-24 14:43:11 -0700 | [diff] [blame] | 70 | select HAVE_SYSCALL_TRACEPOINTS |
Catalin Marinas | 7ac57a8 | 2012-10-08 16:28:16 -0700 | [diff] [blame] | 71 | select SYSCTL_EXCEPTION_TRACE |
Heiko Carstens | dfd9f7a | 2009-06-12 10:26:44 +0200 | [diff] [blame] | 72 | select HAVE_DYNAMIC_FTRACE |
Heiko Carstens | 88dbd20 | 2009-06-12 10:26:46 +0200 | [diff] [blame] | 73 | select HAVE_FUNCTION_GRAPH_TRACER |
Heiko Carstens | 952974ac6 | 2010-02-12 13:38:40 +0100 | [diff] [blame] | 74 | select HAVE_REGS_AND_STACK_ACCESS_API |
Mathieu Desnoyers | 42d4b83 | 2008-02-02 15:10:34 -0500 | [diff] [blame] | 75 | select HAVE_OPROFILE |
Mathieu Desnoyers | 3f55009 | 2008-02-02 15:10:35 -0500 | [diff] [blame] | 76 | select HAVE_KPROBES |
Ananth N Mavinakayanahalli | 9edddaa | 2008-03-04 14:28:37 -0800 | [diff] [blame] | 77 | select HAVE_KRETPROBES |
Christian Borntraeger | 77b455f | 2008-03-25 18:47:36 +0100 | [diff] [blame] | 78 | select HAVE_KVM if 64BIT |
Martin Schwidefsky | 753c4dd | 2008-10-10 21:33:20 +0200 | [diff] [blame] | 79 | select HAVE_ARCH_TRACEHOOK |
Rusty Russell | 98a79d6 | 2008-12-13 21:19:41 +1030 | [diff] [blame] | 80 | select INIT_ALL_POSSIBLE |
Peter Zijlstra | e360adb | 2010-10-14 14:01:34 +0800 | [diff] [blame] | 81 | select HAVE_IRQ_WORK |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 82 | select HAVE_PERF_EVENTS |
Huang Ying | df013ff | 2011-07-13 13:14:22 +0800 | [diff] [blame] | 83 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
Catalin Marinas | b69ec42 | 2012-10-08 16:28:11 -0700 | [diff] [blame] | 84 | select HAVE_DEBUG_KMEMLEAK |
Martin Schwidefsky | 1844c9b | 2010-02-26 22:37:53 +0100 | [diff] [blame] | 85 | select HAVE_KERNEL_GZIP |
| 86 | select HAVE_KERNEL_BZIP2 |
| 87 | select HAVE_KERNEL_LZMA |
Heiko Carstens | cdf5664 | 2010-05-26 23:27:12 +0200 | [diff] [blame] | 88 | select HAVE_KERNEL_LZO |
Heiko Carstens | d7b081a | 2011-03-15 17:08:32 +0100 | [diff] [blame] | 89 | select HAVE_KERNEL_XZ |
Gerald Schaefer | 34b133f | 2011-01-05 12:48:14 +0100 | [diff] [blame] | 90 | select HAVE_ARCH_MUTEX_CPU_RELAX |
Jan Glauber | 5373db8 | 2011-03-16 15:58:30 -0400 | [diff] [blame] | 91 | select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 |
Martin Schwidefsky | c10302e | 2012-07-31 16:23:59 +0200 | [diff] [blame] | 92 | select HAVE_BPF_JIT if 64BIT && PACK_STACK |
Martin Schwidefsky | 85055dd | 2011-08-17 20:42:24 +0200 | [diff] [blame] | 93 | select ARCH_SAVE_PAGE_KEYS if HIBERNATION |
Catalin Marinas | 7463449 | 2012-07-30 14:41:09 -0700 | [diff] [blame] | 94 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
Tejun Heo | ff38df3 | 2011-12-08 10:22:09 -0800 | [diff] [blame] | 95 | select HAVE_MEMBLOCK |
| 96 | select HAVE_MEMBLOCK_NODE_MAP |
Heiko Carstens | 2e30db95 | 2012-05-29 11:21:27 +0200 | [diff] [blame] | 97 | select HAVE_CMPXCHG_LOCAL |
Heiko Carstens | b1d6b40 | 2012-09-17 07:37:13 +0200 | [diff] [blame] | 98 | select HAVE_CMPXCHG_DOUBLE |
Frederic Weisbecker | b952741 | 2012-06-16 15:39:34 +0200 | [diff] [blame] | 99 | select HAVE_VIRT_CPU_ACCOUNTING |
| 100 | select VIRT_CPU_ACCOUNTING |
Tejun Heo | ff38df3 | 2011-12-08 10:22:09 -0800 | [diff] [blame] | 101 | select ARCH_DISCARD_MEMBLOCK |
Heiko Carstens | 3193a98 | 2012-07-24 14:51:34 +0200 | [diff] [blame] | 102 | select BUILDTIME_EXTABLE_SORT |
Thomas Gleixner | 6beb000 | 2009-11-09 15:21:34 +0000 | [diff] [blame] | 103 | select ARCH_INLINE_SPIN_TRYLOCK |
| 104 | select ARCH_INLINE_SPIN_TRYLOCK_BH |
| 105 | select ARCH_INLINE_SPIN_LOCK |
| 106 | select ARCH_INLINE_SPIN_LOCK_BH |
| 107 | select ARCH_INLINE_SPIN_LOCK_IRQ |
| 108 | select ARCH_INLINE_SPIN_LOCK_IRQSAVE |
| 109 | select ARCH_INLINE_SPIN_UNLOCK |
| 110 | select ARCH_INLINE_SPIN_UNLOCK_BH |
| 111 | select ARCH_INLINE_SPIN_UNLOCK_IRQ |
| 112 | select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE |
| 113 | select ARCH_INLINE_READ_TRYLOCK |
| 114 | select ARCH_INLINE_READ_LOCK |
| 115 | select ARCH_INLINE_READ_LOCK_BH |
| 116 | select ARCH_INLINE_READ_LOCK_IRQ |
| 117 | select ARCH_INLINE_READ_LOCK_IRQSAVE |
| 118 | select ARCH_INLINE_READ_UNLOCK |
| 119 | select ARCH_INLINE_READ_UNLOCK_BH |
| 120 | select ARCH_INLINE_READ_UNLOCK_IRQ |
| 121 | select ARCH_INLINE_READ_UNLOCK_IRQRESTORE |
| 122 | select ARCH_INLINE_WRITE_TRYLOCK |
| 123 | select ARCH_INLINE_WRITE_LOCK |
| 124 | select ARCH_INLINE_WRITE_LOCK_BH |
| 125 | select ARCH_INLINE_WRITE_LOCK_IRQ |
| 126 | select ARCH_INLINE_WRITE_LOCK_IRQSAVE |
| 127 | select ARCH_INLINE_WRITE_UNLOCK |
| 128 | select ARCH_INLINE_WRITE_UNLOCK_BH |
| 129 | select ARCH_INLINE_WRITE_UNLOCK_IRQ |
| 130 | select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE |
Catalin Marinas | af1839e | 2012-10-08 16:28:08 -0700 | [diff] [blame] | 131 | select HAVE_UID16 if 32BIT |
Will Deacon | c1d7e01 | 2012-07-30 14:42:46 -0700 | [diff] [blame] | 132 | select ARCH_WANT_IPC_PARSE_VERSION |
Thomas Gleixner | e80e781 | 2012-04-20 13:05:52 +0000 | [diff] [blame] | 133 | select GENERIC_SMP_IDLE_THREAD |
John Stultz | 7063942 | 2012-09-04 15:34:21 -0400 | [diff] [blame] | 134 | select GENERIC_TIME_VSYSCALL_OLD |
Anna-Maria Gleixner | a6527b9 | 2012-05-18 16:45:52 +0000 | [diff] [blame] | 135 | select GENERIC_CLOCKEVENTS |
| 136 | select KTIME_SCALAR if 32BIT |
Heiko Carstens | c63cb46 | 2012-07-31 15:37:13 +0200 | [diff] [blame] | 137 | select HAVE_ARCH_SECCOMP_FILTER |
Al Viro | f9a7e02 | 2012-09-21 20:48:32 -0400 | [diff] [blame] | 138 | select GENERIC_KERNEL_THREAD |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
Martin Schwidefsky | fca3e35 | 2009-07-07 16:37:10 +0200 | [diff] [blame] | 140 | config SCHED_OMIT_FRAME_POINTER |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 141 | def_bool y |
Martin Schwidefsky | fca3e35 | 2009-07-07 16:37:10 +0200 | [diff] [blame] | 142 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | source "init/Kconfig" |
| 144 | |
Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 145 | source "kernel/Kconfig.freezer" |
| 146 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 147 | menu "Processor type and features" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 149 | config HAVE_MARCH_Z900_FEATURES |
| 150 | def_bool n |
| 151 | |
| 152 | config HAVE_MARCH_Z990_FEATURES |
| 153 | def_bool n |
| 154 | select HAVE_MARCH_Z900_FEATURES |
| 155 | |
| 156 | config HAVE_MARCH_Z9_109_FEATURES |
| 157 | def_bool n |
| 158 | select HAVE_MARCH_Z990_FEATURES |
| 159 | |
| 160 | config HAVE_MARCH_Z10_FEATURES |
| 161 | def_bool n |
| 162 | select HAVE_MARCH_Z9_109_FEATURES |
| 163 | |
| 164 | config HAVE_MARCH_Z196_FEATURES |
| 165 | def_bool n |
| 166 | select HAVE_MARCH_Z10_FEATURES |
| 167 | |
| 168 | choice |
| 169 | prompt "Processor type" |
| 170 | default MARCH_G5 |
| 171 | |
| 172 | config MARCH_G5 |
| 173 | bool "System/390 model G5 and G6" |
| 174 | depends on !64BIT |
| 175 | help |
| 176 | Select this to build a 31 bit kernel that works |
| 177 | on all ESA/390 and z/Architecture machines. |
| 178 | |
| 179 | config MARCH_Z900 |
| 180 | bool "IBM zSeries model z800 and z900" |
| 181 | select HAVE_MARCH_Z900_FEATURES if 64BIT |
| 182 | help |
| 183 | Select this to enable optimizations for model z800/z900 (2064 and |
| 184 | 2066 series). This will enable some optimizations that are not |
| 185 | available on older ESA/390 (31 Bit) only CPUs. |
| 186 | |
| 187 | config MARCH_Z990 |
| 188 | bool "IBM zSeries model z890 and z990" |
| 189 | select HAVE_MARCH_Z990_FEATURES if 64BIT |
| 190 | help |
| 191 | Select this to enable optimizations for model z890/z990 (2084 and |
| 192 | 2086 series). The kernel will be slightly faster but will not work |
| 193 | on older machines. |
| 194 | |
| 195 | config MARCH_Z9_109 |
| 196 | bool "IBM System z9" |
| 197 | select HAVE_MARCH_Z9_109_FEATURES if 64BIT |
| 198 | help |
| 199 | Select this to enable optimizations for IBM System z9 (2094 and |
| 200 | 2096 series). The kernel will be slightly faster but will not work |
| 201 | on older machines. |
| 202 | |
| 203 | config MARCH_Z10 |
| 204 | bool "IBM System z10" |
| 205 | select HAVE_MARCH_Z10_FEATURES if 64BIT |
| 206 | help |
| 207 | Select this to enable optimizations for IBM System z10 (2097 and |
| 208 | 2098 series). The kernel will be slightly faster but will not work |
| 209 | on older machines. |
| 210 | |
| 211 | config MARCH_Z196 |
| 212 | bool "IBM zEnterprise 114 and 196" |
| 213 | select HAVE_MARCH_Z196_FEATURES if 64BIT |
| 214 | help |
| 215 | Select this to enable optimizations for IBM zEnterprise 114 and 196 |
| 216 | (2818 and 2817 series). The kernel will be slightly faster but will |
| 217 | not work on older machines. |
| 218 | |
| 219 | endchoice |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | |
Martin Schwidefsky | 347a8dc | 2006-01-06 00:19:28 -0800 | [diff] [blame] | 221 | config 64BIT |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 222 | def_bool y |
| 223 | prompt "64 bit kernel" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | help |
Heiko Carstens | db81a23 | 2010-10-29 16:50:36 +0200 | [diff] [blame] | 225 | Select this option if you have an IBM z/Architecture machine |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | and want to use the 64 bit addressing mode. |
| 227 | |
Martin Schwidefsky | d9f7a74 | 2006-09-28 16:55:39 +0200 | [diff] [blame] | 228 | config 32BIT |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 229 | def_bool y if !64BIT |
Martin Schwidefsky | d9f7a74 | 2006-09-28 16:55:39 +0200 | [diff] [blame] | 230 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 231 | config COMPAT |
| 232 | def_bool y |
| 233 | prompt "Kernel support for 31 bit emulation" |
| 234 | depends on 64BIT |
| 235 | select COMPAT_BINFMT_ELF if BINFMT_ELF |
| 236 | select ARCH_WANT_OLD_COMPAT_IPC |
| 237 | help |
| 238 | Select this option if you want to enable your system kernel to |
| 239 | handle system-calls from ELF binaries for 31 bit ESA. This option |
| 240 | (and some other stuff like libraries and such) is needed for |
| 241 | executing 31 bit applications. It is safe to say "Y". |
| 242 | |
| 243 | config SYSVIPC_COMPAT |
| 244 | def_bool y if COMPAT && SYSVIPC |
| 245 | |
| 246 | config KEYS_COMPAT |
| 247 | def_bool y if COMPAT && KEYS |
| 248 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | config SMP |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 250 | def_bool y |
| 251 | prompt "Symmetric multi-processing support" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | ---help--- |
| 253 | This enables support for systems with more than one CPU. If you have |
| 254 | a system with only one CPU, like most personal computers, say N. If |
| 255 | you have a system with more than one CPU, say Y. |
| 256 | |
| 257 | If you say N here, the kernel will run on single and multiprocessor |
| 258 | machines, but will use only one CPU of a multiprocessor machine. If |
| 259 | you say Y here, the kernel will run on many, but not all, |
| 260 | singleprocessor machines. On a singleprocessor machine, the kernel |
| 261 | will run faster if you say N here. |
| 262 | |
Adrian Bunk | 03502fa | 2008-02-03 15:50:21 +0200 | [diff] [blame] | 263 | See also the SMP-HOWTO available at |
| 264 | <http://www.tldp.org/docs.html#howto>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
| 266 | Even if you don't know what to do here, say Y. |
| 267 | |
| 268 | config NR_CPUS |
| 269 | int "Maximum number of CPUs (2-64)" |
| 270 | range 2 64 |
| 271 | depends on SMP |
Heiko Carstens | 057c5cb | 2008-02-19 15:29:25 +0100 | [diff] [blame] | 272 | default "32" if !64BIT |
| 273 | default "64" if 64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | help |
| 275 | This allows you to specify the maximum number of CPUs which this |
| 276 | kernel will support. The maximum supported value is 64 and the |
| 277 | minimum value which makes sense is 2. |
| 278 | |
| 279 | This is purely to save memory - each supported CPU adds |
| 280 | approximately sixteen kilobytes to the kernel image. |
| 281 | |
| 282 | config HOTPLUG_CPU |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 283 | def_bool y |
| 284 | prompt "Support for hot-pluggable CPUs" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | depends on SMP |
| 286 | select HOTPLUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | help |
| 288 | Say Y here to be able to turn CPUs off and on. CPUs |
| 289 | can be controlled through /sys/devices/system/cpu/cpu#. |
| 290 | Say N if you want to disable CPU hotplug. |
| 291 | |
Heiko Carstens | 8d11e02 | 2010-10-29 16:50:37 +0200 | [diff] [blame] | 292 | config SCHED_MC |
Heiko Carstens | 83a24e3 | 2011-12-27 11:27:09 +0100 | [diff] [blame] | 293 | def_bool n |
Heiko Carstens | 8d11e02 | 2010-10-29 16:50:37 +0200 | [diff] [blame] | 294 | |
Heiko Carstens | 4cb14bc | 2010-08-31 10:28:18 +0200 | [diff] [blame] | 295 | config SCHED_BOOK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 296 | def_bool y |
| 297 | prompt "Book scheduler support" |
Heiko Carstens | 83a24e3 | 2011-12-27 11:27:09 +0100 | [diff] [blame] | 298 | depends on SMP |
| 299 | select SCHED_MC |
Heiko Carstens | 4cb14bc | 2010-08-31 10:28:18 +0200 | [diff] [blame] | 300 | help |
| 301 | Book scheduler support improves the CPU scheduler's decision making |
| 302 | when dealing with machines that have several books. |
| 303 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 304 | source kernel/Kconfig.preempt |
| 305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | config MATHEMU |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 307 | def_bool y |
| 308 | prompt "IEEE FPU emulation" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | depends on MARCH_G5 |
| 310 | help |
| 311 | This option is required for IEEE compliant floating point arithmetic |
Heiko Carstens | db81a23 | 2010-10-29 16:50:36 +0200 | [diff] [blame] | 312 | on older ESA/390 machines. Say Y unless you know your machine doesn't |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | need this. |
| 314 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 315 | source kernel/Kconfig.hz |
| 316 | |
| 317 | endmenu |
| 318 | |
| 319 | menu "Memory setup" |
| 320 | |
| 321 | config ARCH_SPARSEMEM_ENABLE |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 322 | def_bool y |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 323 | select SPARSEMEM_VMEMMAP_ENABLE |
| 324 | select SPARSEMEM_VMEMMAP |
| 325 | select SPARSEMEM_STATIC if !64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 327 | config ARCH_SPARSEMEM_DEFAULT |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 328 | def_bool y |
Al Viro | e65e1fc | 2006-09-12 03:04:40 -0400 | [diff] [blame] | 329 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 330 | config ARCH_SELECT_MEMORY_MODEL |
| 331 | def_bool y |
Heiko Carstens | 0544516 | 2012-05-14 10:12:41 +0200 | [diff] [blame] | 332 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 333 | config ARCH_ENABLE_MEMORY_HOTPLUG |
| 334 | def_bool y if SPARSEMEM |
Heiko Carstens | 0544516 | 2012-05-14 10:12:41 +0200 | [diff] [blame] | 335 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 336 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
| 337 | def_bool y |
Heiko Carstens | 0544516 | 2012-05-14 10:12:41 +0200 | [diff] [blame] | 338 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 339 | config FORCE_MAX_ZONEORDER |
| 340 | int |
| 341 | default "9" |
Heiko Carstens | 0544516 | 2012-05-14 10:12:41 +0200 | [diff] [blame] | 342 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 343 | source "mm/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | |
| 345 | config PACK_STACK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 346 | def_bool y |
| 347 | prompt "Pack kernel stack" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | help |
| 349 | This option enables the compiler option -mkernel-backchain if it |
| 350 | is available. If the option is available the compiler supports |
| 351 | the new stack layout which dramatically reduces the minimum stack |
| 352 | frame size. With an old compiler a non-leaf function needs a |
| 353 | minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With |
| 354 | -mkernel-backchain the minimum size drops to 16 byte on 31 bit |
| 355 | and 24 byte on 64 bit. |
| 356 | |
| 357 | Say Y if you are unsure. |
| 358 | |
| 359 | config SMALL_STACK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 360 | def_bool n |
| 361 | prompt "Use 8kb for kernel stack instead of 16kb" |
Heiko Carstens | 7f5a8ba | 2008-10-28 11:10:21 +0100 | [diff] [blame] | 362 | depends on PACK_STACK && 64BIT && !LOCKDEP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | help |
| 364 | If you say Y here and the compiler supports the -mkernel-backchain |
Heiko Carstens | 7f5a8ba | 2008-10-28 11:10:21 +0100 | [diff] [blame] | 365 | option the kernel will use a smaller kernel stack size. The reduced |
| 366 | size is 8kb instead of 16kb. This allows to run more threads on a |
| 367 | system and reduces the pressure on the memory management for higher |
| 368 | order page allocations. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | |
| 370 | Say N if you are unsure. |
| 371 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | config CHECK_STACK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 373 | def_bool y |
| 374 | prompt "Detect kernel stack overflow" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | help |
| 376 | This option enables the compiler option -mstack-guard and |
| 377 | -mstack-size if they are available. If the compiler supports them |
| 378 | it will emit additional code to each function prolog to trigger |
| 379 | an illegal operation if the kernel stack is about to overflow. |
| 380 | |
| 381 | Say N if you are unsure. |
| 382 | |
| 383 | config STACK_GUARD |
| 384 | int "Size of the guard area (128-1024)" |
| 385 | range 128 1024 |
| 386 | depends on CHECK_STACK |
| 387 | default "256" |
| 388 | help |
| 389 | This allows you to specify the size of the guard area at the lower |
| 390 | end of the kernel stack. If the kernel stack points into the guard |
| 391 | area on function entry an illegal operation is triggered. The size |
| 392 | needs to be a power of 2. Please keep in mind that the size of an |
| 393 | interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit. |
| 394 | The minimum size for the stack guard should be 256 for 31 bit and |
| 395 | 512 for 64 bit. |
| 396 | |
Jan Glauber | 2c190da | 2011-03-15 17:08:19 +0100 | [diff] [blame] | 397 | config WARN_DYNAMIC_STACK |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 398 | def_bool n |
Jan Glauber | 2c190da | 2011-03-15 17:08:19 +0100 | [diff] [blame] | 399 | prompt "Emit compiler warnings for function with dynamic stack usage" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | help |
Jan Glauber | 2c190da | 2011-03-15 17:08:19 +0100 | [diff] [blame] | 401 | This option enables the compiler option -mwarn-dynamicstack. If the |
| 402 | compiler supports this options generates warnings for functions |
| 403 | that dynamically allocate stack space using alloca. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | |
| 405 | Say N if you are unsure. |
| 406 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 407 | endmenu |
Martin Schwidefsky | 61d48c2 | 2007-05-10 15:46:00 +0200 | [diff] [blame] | 408 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 409 | menu "I/O subsystem" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | config QDIO |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 412 | def_tristate y |
| 413 | prompt "QDIO support" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | ---help--- |
Frank Pavlic | 8129ee1 | 2006-01-06 00:19:20 -0800 | [diff] [blame] | 415 | This driver provides the Queued Direct I/O base support for |
Ursula Braun | efca13b | 2008-04-17 07:46:19 +0200 | [diff] [blame] | 416 | IBM System z. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | |
| 418 | To compile this driver as a module, choose M here: the |
| 419 | module will be called qdio. |
| 420 | |
| 421 | If unsure, say Y. |
| 422 | |
Cornelia Huck | 9d92a7e | 2008-07-14 09:59:05 +0200 | [diff] [blame] | 423 | config CHSC_SCH |
Sebastian Ott | d9c11b1 | 2011-01-31 11:30:09 +0100 | [diff] [blame] | 424 | def_tristate m |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 425 | prompt "Support for CHSC subchannels" |
Cornelia Huck | 9d92a7e | 2008-07-14 09:59:05 +0200 | [diff] [blame] | 426 | help |
| 427 | This driver allows usage of CHSC subchannels. A CHSC subchannel |
| 428 | is usually present on LPAR only. |
| 429 | The driver creates a device /dev/chsc, which may be used to |
| 430 | obtain I/O configuration information about the machine and |
| 431 | to issue asynchronous chsc commands (DANGEROUS). |
| 432 | You will usually only want to use this interface on a special |
| 433 | LPAR designated for system management. |
| 434 | |
| 435 | To compile this driver as a module, choose M here: the |
| 436 | module will be called chsc_sch. |
| 437 | |
| 438 | If unsure, say N. |
| 439 | |
Sebastian Ott | 1d1c8f7 | 2012-08-28 16:46:26 +0200 | [diff] [blame] | 440 | config SCM_BUS |
| 441 | def_bool y |
| 442 | depends on 64BIT |
| 443 | prompt "SCM bus driver" |
| 444 | help |
| 445 | Bus driver for Storage Class Memory. |
| 446 | |
Sebastian Ott | eadb86a | 2012-08-28 16:48:16 +0200 | [diff] [blame] | 447 | config EADM_SCH |
| 448 | def_tristate m |
| 449 | prompt "Support for EADM subchannels" |
| 450 | depends on SCM_BUS |
| 451 | help |
| 452 | This driver allows usage of EADM subchannels. EADM subchannels act |
| 453 | as a communication vehicle for SCM increments. |
| 454 | |
| 455 | To compile this driver as a module, choose M here: the |
| 456 | module will be called eadm_sch. |
| 457 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 458 | endmenu |
| 459 | |
| 460 | menu "Dump support" |
| 461 | |
| 462 | config CRASH_DUMP |
| 463 | bool "kernel crash dumps" |
| 464 | depends on 64BIT && SMP |
| 465 | select KEXEC |
| 466 | help |
| 467 | Generate crash dump after being started by kexec. |
| 468 | Crash dump kernels are loaded in the main kernel with kexec-tools |
| 469 | into a specially reserved region and then later executed after |
| 470 | a crash by kdump/kexec. |
| 471 | For more details see Documentation/kdump/kdump.txt |
| 472 | |
| 473 | config ZFCPDUMP |
| 474 | def_bool n |
| 475 | prompt "zfcpdump support" |
| 476 | select SMP |
| 477 | help |
| 478 | Select this option if you want to build an zfcpdump enabled kernel. |
| 479 | Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this. |
| 480 | |
| 481 | endmenu |
| 482 | |
| 483 | menu "Executable file formats / Emulations" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | source "fs/Kconfig.binfmt" |
| 486 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 487 | config SECCOMP |
| 488 | def_bool y |
| 489 | prompt "Enable seccomp to safely compute untrusted bytecode" |
| 490 | depends on PROC_FS |
| 491 | help |
| 492 | This kernel feature is useful for number crunching applications |
| 493 | that may need to compute untrusted bytecode during their |
| 494 | execution. By using pipes or other transports made available to |
| 495 | the process as file descriptors supporting the read/write |
| 496 | syscalls, it's possible to isolate those applications in |
| 497 | their own address space using seccomp. Once seccomp is |
| 498 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
| 499 | and the task is only allowed to execute a few safe syscalls |
| 500 | defined by each seccomp mode. |
| 501 | |
| 502 | If unsure, say Y. |
| 503 | |
| 504 | endmenu |
| 505 | |
| 506 | menu "Power Management" |
| 507 | |
| 508 | config ARCH_HIBERNATION_POSSIBLE |
| 509 | def_bool y if 64BIT |
| 510 | |
| 511 | source "kernel/power/Kconfig" |
| 512 | |
| 513 | endmenu |
| 514 | |
| 515 | source "net/Kconfig" |
| 516 | |
| 517 | config PCMCIA |
| 518 | def_bool n |
| 519 | |
| 520 | config CCW |
| 521 | def_bool y |
| 522 | |
| 523 | source "drivers/Kconfig" |
| 524 | |
| 525 | source "fs/Kconfig" |
| 526 | |
| 527 | source "arch/s390/Kconfig.debug" |
| 528 | |
| 529 | source "security/Kconfig" |
| 530 | |
| 531 | source "crypto/Kconfig" |
| 532 | |
| 533 | source "lib/Kconfig" |
| 534 | |
| 535 | menu "Virtualization" |
Heiko Carstens | 684de39 | 2008-03-05 12:37:14 +0100 | [diff] [blame] | 536 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | config PFAULT |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 538 | def_bool y |
| 539 | prompt "Pseudo page fault support" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | help |
| 541 | Select this option, if you want to use PFAULT pseudo page fault |
| 542 | handling under VM. If running native or in LPAR, this option |
| 543 | has no effect. If your VM does not support PFAULT, PAGEEX |
| 544 | pseudo page fault handling will be used. |
| 545 | Note that VM 4.2 supports PFAULT but has a bug in its |
| 546 | implementation that causes some problems. |
| 547 | Everybody who wants to run Linux under VM != VM4.2 should select |
| 548 | this option. |
| 549 | |
| 550 | config SHARED_KERNEL |
Heiko Carstens | 0eccc78 | 2012-09-25 14:53:15 +0200 | [diff] [blame] | 551 | bool "VM shared kernel support" |
| 552 | depends on !JUMP_LABEL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | help |
| 554 | Select this option, if you want to share the text segment of the |
| 555 | Linux kernel between different VM guests. This reduces memory |
| 556 | usage with lots of guests but greatly increases kernel size. |
Heiko Carstens | 9c9c176 | 2007-03-05 23:35:45 +0100 | [diff] [blame] | 557 | Also if a kernel was IPL'ed from a shared segment the kexec system |
| 558 | call will not work. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | You should only select this option if you know what you are |
| 560 | doing and want to exploit this feature. |
| 561 | |
| 562 | config CMM |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 563 | def_tristate n |
| 564 | prompt "Cooperative memory management" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | help |
| 566 | Select this option, if you want to enable the kernel interface |
| 567 | to reduce the memory size of the system. This is accomplished |
| 568 | by allocating pages of memory and put them "on hold". This only |
| 569 | makes sense for a system running under VM where the unused pages |
| 570 | will be reused by VM for other guest systems. The interface |
| 571 | allows an external monitor to balance memory of many systems. |
| 572 | Everybody who wants to run Linux under VM should select this |
| 573 | option. |
| 574 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | config CMM_IUCV |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 576 | def_bool y |
| 577 | prompt "IUCV special message interface to cooperative memory management" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV) |
| 579 | help |
| 580 | Select this option to enable the special message interface to |
| 581 | the cooperative memory management. |
| 582 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | config APPLDATA_BASE |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 584 | def_bool n |
| 585 | prompt "Linux - VM Monitor Stream, base infrastructure" |
Martin Schwidefsky | c185b78 | 2008-12-25 13:39:25 +0100 | [diff] [blame] | 586 | depends on PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | help |
| 588 | This provides a kernel interface for creating and updating z/VM APPLDATA |
| 589 | monitor records. The monitor records are updated at certain time |
| 590 | intervals, once the timer is started. |
| 591 | Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer, |
| 592 | i.e. enables or disables monitoring on the Linux side. |
| 593 | A custom interval value (in seconds) can be written to |
| 594 | /proc/appldata/interval. |
| 595 | |
| 596 | Defaults are 60 seconds interval and timer off. |
| 597 | The /proc entries can also be read from, showing the current settings. |
| 598 | |
| 599 | config APPLDATA_MEM |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 600 | def_tristate m |
| 601 | prompt "Monitor memory management statistics" |
Al Viro | 62fb2ba | 2006-12-13 00:34:59 -0800 | [diff] [blame] | 602 | depends on APPLDATA_BASE && VM_EVENT_COUNTERS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | help |
| 604 | This provides memory management related data to the Linux - VM Monitor |
| 605 | Stream, like paging/swapping rate, memory utilisation, etc. |
| 606 | Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM |
| 607 | APPLDATA monitor record, i.e. enables or disables monitoring this record |
| 608 | on the z/VM side. |
| 609 | |
| 610 | Default is disabled. |
| 611 | The /proc entry can also be read from, showing the current settings. |
| 612 | |
| 613 | This can also be compiled as a module, which will be called |
| 614 | appldata_mem.o. |
| 615 | |
| 616 | config APPLDATA_OS |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 617 | def_tristate m |
| 618 | prompt "Monitor OS statistics" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | depends on APPLDATA_BASE |
| 620 | help |
| 621 | This provides OS related data to the Linux - VM Monitor Stream, like |
| 622 | CPU utilisation, etc. |
| 623 | Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM |
| 624 | APPLDATA monitor record, i.e. enables or disables monitoring this record |
| 625 | on the z/VM side. |
| 626 | |
| 627 | Default is disabled. |
| 628 | This can also be compiled as a module, which will be called |
| 629 | appldata_os.o. |
| 630 | |
| 631 | config APPLDATA_NET_SUM |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 632 | def_tristate m |
| 633 | prompt "Monitor overall network statistics" |
Sachin Sant | 70193af | 2009-03-26 15:24:00 +0100 | [diff] [blame] | 634 | depends on APPLDATA_BASE && NET |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | help |
| 636 | This provides network related data to the Linux - VM Monitor Stream, |
| 637 | currently there is only a total sum of network I/O statistics, no |
| 638 | per-interface data. |
| 639 | Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM |
| 640 | APPLDATA monitor record, i.e. enables or disables monitoring this record |
| 641 | on the z/VM side. |
| 642 | |
| 643 | Default is disabled. |
| 644 | This can also be compiled as a module, which will be called |
| 645 | appldata_net_sum.o. |
| 646 | |
Michael Holzheu | 24bbb1f | 2006-06-23 02:05:06 -0700 | [diff] [blame] | 647 | config S390_HYPFS_FS |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 648 | def_bool y |
| 649 | prompt "s390 hypervisor file system support" |
Michael Holzheu | 24bbb1f | 2006-06-23 02:05:06 -0700 | [diff] [blame] | 650 | select SYS_HYPERVISOR |
Michael Holzheu | 24bbb1f | 2006-06-23 02:05:06 -0700 | [diff] [blame] | 651 | help |
| 652 | This is a virtual file system intended to provide accounting |
| 653 | information in an s390 hypervisor environment. |
| 654 | |
Jan Glauber | 843c48f | 2012-08-27 10:55:18 +0200 | [diff] [blame] | 655 | source "arch/s390/kvm/Kconfig" |
Michael Holzheu | 411ed32 | 2007-04-27 16:01:49 +0200 | [diff] [blame] | 656 | |
Carsten Otte | fa58774 | 2008-03-25 18:47:44 +0100 | [diff] [blame] | 657 | config S390_GUEST |
Martin Schwidefsky | 6f9a3c3 | 2011-01-05 12:47:15 +0100 | [diff] [blame] | 658 | def_bool y |
Cornelia Huck | bdd1fc2 | 2012-08-27 12:56:48 +0200 | [diff] [blame] | 659 | prompt "s390 support for virtio devices (EXPERIMENTAL)" |
Carsten Otte | fa58774 | 2008-03-25 18:47:44 +0100 | [diff] [blame] | 660 | depends on 64BIT && EXPERIMENTAL |
Christian Borntraeger | 80629b0 | 2011-06-22 16:24:07 +0200 | [diff] [blame] | 661 | select VIRTUALIZATION |
Carsten Otte | fa58774 | 2008-03-25 18:47:44 +0100 | [diff] [blame] | 662 | select VIRTIO |
Christian Borntraeger | faeba830 | 2008-06-20 15:24:18 +0200 | [diff] [blame] | 663 | select VIRTIO_CONSOLE |
Carsten Otte | fa58774 | 2008-03-25 18:47:44 +0100 | [diff] [blame] | 664 | help |
Cornelia Huck | bdd1fc2 | 2012-08-27 12:56:48 +0200 | [diff] [blame] | 665 | Enabling this option adds support for virtio based paravirtual device |
| 666 | drivers on s390. |
| 667 | |
Christian Borntraeger | 20766c0 | 2008-08-29 13:30:56 +0200 | [diff] [blame] | 668 | 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] | 669 | the KVM hypervisor. |
Heiko Carstens | bcf5cef | 2009-06-12 10:26:26 +0200 | [diff] [blame] | 670 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | endmenu |