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1da177e4 LT |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | ||
6 | mainmenu "IA-64 Linux Kernel Configuration" | |
7 | ||
8 | source "init/Kconfig" | |
9 | ||
dc52ddc0 MH |
10 | source "kernel/Kconfig.freezer" |
11 | ||
1da177e4 LT |
12 | menu "Processor type and features" |
13 | ||
14 | config IA64 | |
15 | bool | |
06f87adf LB |
16 | select PCI if (!IA64_HP_SIM) |
17 | select ACPI if (!IA64_HP_SIM) | |
8140a90e | 18 | select PM if (!IA64_HP_SIM) |
f282b970 | 19 | select ARCH_SUPPORTS_MSI |
0773a6cf | 20 | select HAVE_UNSTABLE_SCHED_CLOCK |
ec7748b5 | 21 | select HAVE_IDE |
42d4b839 | 22 | select HAVE_OPROFILE |
3f550096 | 23 | select HAVE_KPROBES |
9edddaa2 | 24 | select HAVE_KRETPROBES |
a14a07b8 SL |
25 | select HAVE_FTRACE_MCOUNT_RECORD |
26 | select HAVE_DYNAMIC_FTRACE if (!ITANIUM) | |
d3e75ff1 | 27 | select HAVE_FUNCTION_TRACER |
74bc7cee | 28 | select HAVE_DMA_ATTRS |
b693919c | 29 | select HAVE_KVM |
9690ad03 | 30 | select HAVE_ARCH_TRACEHOOK |
99162195 | 31 | select HAVE_DMA_API_DEBUG |
1da177e4 LT |
32 | default y |
33 | help | |
34 | The Itanium Processor Family is Intel's 64-bit successor to | |
35 | the 32-bit X86 line. The IA-64 Linux project has a home | |
36 | page at <http://www.linuxia64.org/> and a mailing list at | |
37 | <linux-ia64@vger.kernel.org>. | |
38 | ||
39 | config 64BIT | |
40 | bool | |
9f271d57 | 41 | select ATA_NONSTANDARD if ATA |
1da177e4 LT |
42 | default y |
43 | ||
66701b14 | 44 | config ZONE_DMA |
09ae1f58 CL |
45 | def_bool y |
46 | depends on !IA64_SGI_SN2 | |
66701b14 | 47 | |
2bd62a40 CL |
48 | config QUICKLIST |
49 | bool | |
50 | default y | |
51 | ||
1da177e4 LT |
52 | config MMU |
53 | bool | |
54 | default y | |
55 | ||
66ed5ef8 FT |
56 | config NEED_DMA_MAP_STATE |
57 | def_bool y | |
58 | ||
6c654b5f JL |
59 | config SWIOTLB |
60 | bool | |
6c654b5f | 61 | |
95c354fe | 62 | config GENERIC_LOCKBREAK |
2c86963b | 63 | def_bool n |
95c354fe | 64 | |
1da177e4 LT |
65 | config RWSEM_XCHGADD_ALGORITHM |
66 | bool | |
67 | default y | |
68 | ||
d9c23400 MG |
69 | config HUGETLB_PAGE_SIZE_VARIABLE |
70 | bool | |
71 | depends on HUGETLB_PAGE | |
72 | default y | |
73 | ||
2875aef8 AM |
74 | config GENERIC_FIND_NEXT_BIT |
75 | bool | |
76 | default y | |
77 | ||
1da177e4 LT |
78 | config GENERIC_CALIBRATE_DELAY |
79 | bool | |
80 | default y | |
81 | ||
0aa366f3 TL |
82 | config GENERIC_TIME |
83 | bool | |
84 | default y | |
85 | ||
86 | config GENERIC_TIME_VSYSCALL | |
1da177e4 LT |
87 | bool |
88 | default y | |
89 | ||
988c388a | 90 | config HAVE_SETUP_PER_CPU_AREA |
b32ef636 | 91 | def_bool y |
92 | ||
3ed3bce8 MD |
93 | config DMI |
94 | bool | |
95 | default y | |
96 | ||
1da177e4 LT |
97 | config EFI |
98 | bool | |
99 | default y | |
100 | ||
101 | config GENERIC_IOMAP | |
102 | bool | |
103 | default y | |
104 | ||
ae1e9130 | 105 | config SCHED_OMIT_FRAME_POINTER |
7d12e522 AB |
106 | bool |
107 | default y | |
108 | ||
f14f75b8 JS |
109 | config IA64_UNCACHED_ALLOCATOR |
110 | bool | |
111 | select GENERIC_ALLOCATOR | |
112 | ||
46cf98cd VP |
113 | config ARCH_USES_PG_UNCACHED |
114 | def_bool y | |
115 | depends on IA64_UNCACHED_ALLOCATOR | |
116 | ||
e65e1fc2 AV |
117 | config AUDIT_ARCH |
118 | bool | |
119 | default y | |
120 | ||
ba9cc328 IY |
121 | menuconfig PARAVIRT_GUEST |
122 | bool "Paravirtualized guest support" | |
123 | help | |
124 | Say Y here to get to see options related to running Linux under | |
125 | various hypervisors. This option alone does not add any kernel code. | |
126 | ||
127 | If you say N, all options in this submenu will be skipped and disabled. | |
128 | ||
129 | if PARAVIRT_GUEST | |
130 | ||
131 | config PARAVIRT | |
132 | bool "Enable paravirtualization code" | |
133 | depends on PARAVIRT_GUEST | |
134 | default y | |
135 | bool | |
136 | default y | |
137 | help | |
138 | This changes the kernel so it can modify itself when it is run | |
139 | under a hypervisor, potentially improving performance significantly | |
140 | over full virtualization. However, when run without a hypervisor | |
141 | the kernel is theoretically slower and slightly larger. | |
142 | ||
143 | ||
144 | source "arch/ia64/xen/Kconfig" | |
145 | ||
146 | endif | |
147 | ||
1da177e4 LT |
148 | choice |
149 | prompt "System type" | |
150 | default IA64_GENERIC | |
151 | ||
152 | config IA64_GENERIC | |
153 | bool "generic" | |
154 | select NUMA | |
155 | select ACPI_NUMA | |
d1598e05 | 156 | select SWIOTLB |
62fdd767 | 157 | select PCI_MSI |
f2b3fdc8 | 158 | select DMAR |
1da177e4 LT |
159 | help |
160 | This selects the system type of your hardware. A "generic" kernel | |
161 | will run on any supported IA-64 system. However, if you configure | |
162 | a kernel for your specific system, it will be faster and smaller. | |
163 | ||
164 | generic For any supported IA-64 system | |
165 | DIG-compliant For DIG ("Developer's Interface Guide") compliant systems | |
62fdd767 | 166 | DIG+Intel+IOMMU For DIG systems with Intel IOMMU |
1da177e4 LT |
167 | HP-zx1/sx1000 For HP systems |
168 | HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. | |
169 | SGI-SN2 For SGI Altix systems | |
22246614 | 170 | SGI-UV For SGI UV systems |
1da177e4 | 171 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> |
ba9cc328 | 172 | Xen-domU For xen domU system |
1da177e4 LT |
173 | |
174 | If you don't know what to do, choose "generic". | |
175 | ||
176 | config IA64_DIG | |
177 | bool "DIG-compliant" | |
d1598e05 | 178 | select SWIOTLB |
1da177e4 | 179 | |
62fdd767 FY |
180 | config IA64_DIG_VTD |
181 | bool "DIG+Intel+IOMMU" | |
182 | select DMAR | |
183 | select PCI_MSI | |
184 | ||
1da177e4 LT |
185 | config IA64_HP_ZX1 |
186 | bool "HP-zx1/sx1000" | |
187 | help | |
188 | Build a kernel that runs on HP zx1 and sx1000 systems. This adds | |
189 | support for the HP I/O MMU. | |
190 | ||
191 | config IA64_HP_ZX1_SWIOTLB | |
192 | bool "HP-zx1/sx1000 with software I/O TLB" | |
d1598e05 | 193 | select SWIOTLB |
1da177e4 LT |
194 | help |
195 | Build a kernel that runs on HP zx1 and sx1000 systems even when they | |
196 | have broken PCI devices which cannot DMA to full 32 bits. Apart | |
197 | from support for the HP I/O MMU, this includes support for the software | |
198 | I/O TLB, which allows supporting the broken devices at the expense of | |
199 | wasting some kernel memory (about 2MB by default). | |
200 | ||
201 | config IA64_SGI_SN2 | |
202 | bool "SGI-SN2" | |
bd3be240 JS |
203 | select NUMA |
204 | select ACPI_NUMA | |
1da177e4 LT |
205 | help |
206 | Selecting this option will optimize the kernel for use on sn2 based | |
207 | systems, but the resulting kernel binary will not run on other | |
208 | types of ia64 systems. If you have an SGI Altix system, it's safe | |
209 | to select this option. If in doubt, select ia64 generic support | |
210 | instead. | |
211 | ||
3351ab9b JS |
212 | config IA64_SGI_UV |
213 | bool "SGI-UV" | |
22246614 JS |
214 | select NUMA |
215 | select ACPI_NUMA | |
216 | select SWIOTLB | |
217 | help | |
218 | Selecting this option will optimize the kernel for use on UV based | |
219 | systems, but the resulting kernel binary will not run on other | |
220 | types of ia64 systems. If you have an SGI UV system, it's safe | |
221 | to select this option. If in doubt, select ia64 generic support | |
222 | instead. | |
223 | ||
1da177e4 LT |
224 | config IA64_HP_SIM |
225 | bool "Ski-simulator" | |
d1598e05 | 226 | select SWIOTLB |
1da177e4 | 227 | |
ba9cc328 IY |
228 | config IA64_XEN_GUEST |
229 | bool "Xen guest" | |
1d5b20f4 | 230 | select SWIOTLB |
ba9cc328 | 231 | depends on XEN |
1d5b20f4 IY |
232 | help |
233 | Build a kernel that runs on Xen guest domain. At this moment only | |
234 | 16KB page size in supported. | |
ba9cc328 | 235 | |
1da177e4 LT |
236 | endchoice |
237 | ||
238 | choice | |
239 | prompt "Processor type" | |
240 | default ITANIUM | |
241 | ||
242 | config ITANIUM | |
243 | bool "Itanium" | |
244 | help | |
245 | Select your IA-64 processor type. The default is Itanium. | |
246 | This choice is safe for all IA-64 systems, but may not perform | |
247 | optimally on systems with, say, Itanium 2 or newer processors. | |
248 | ||
249 | config MCKINLEY | |
250 | bool "Itanium 2" | |
251 | help | |
252 | Select this to configure for an Itanium 2 (McKinley) processor. | |
253 | ||
254 | endchoice | |
255 | ||
256 | choice | |
257 | prompt "Kernel page size" | |
258 | default IA64_PAGE_SIZE_16KB | |
259 | ||
260 | config IA64_PAGE_SIZE_4KB | |
261 | bool "4KB" | |
262 | help | |
263 | This lets you select the page size of the kernel. For best IA-64 | |
264 | performance, a page size of 8KB or 16KB is recommended. For best | |
265 | IA-32 compatibility, a page size of 4KB should be selected (the vast | |
266 | majority of IA-32 binaries work perfectly fine with a larger page | |
267 | size). For Itanium 2 or newer systems, a page size of 64KB can also | |
268 | be selected. | |
269 | ||
270 | 4KB For best IA-32 compatibility | |
271 | 8KB For best IA-64 performance | |
272 | 16KB For best IA-64 performance | |
273 | 64KB Requires Itanium 2 or newer processor. | |
274 | ||
275 | If you don't know what to do, choose 16KB. | |
276 | ||
277 | config IA64_PAGE_SIZE_8KB | |
278 | bool "8KB" | |
279 | ||
280 | config IA64_PAGE_SIZE_16KB | |
281 | bool "16KB" | |
282 | ||
283 | config IA64_PAGE_SIZE_64KB | |
284 | depends on !ITANIUM | |
285 | bool "64KB" | |
286 | ||
287 | endchoice | |
288 | ||
837cd0bd RH |
289 | choice |
290 | prompt "Page Table Levels" | |
291 | default PGTABLE_3 | |
292 | ||
293 | config PGTABLE_3 | |
294 | bool "3 Levels" | |
295 | ||
296 | config PGTABLE_4 | |
297 | depends on !IA64_PAGE_SIZE_64KB | |
298 | bool "4 Levels" | |
299 | ||
300 | endchoice | |
301 | ||
10d0aa3c TL |
302 | if IA64_HP_SIM |
303 | config HZ | |
304 | default 32 | |
305 | endif | |
306 | ||
307 | if !IA64_HP_SIM | |
b5d23e5b | 308 | source kernel/Kconfig.hz |
10d0aa3c | 309 | endif |
b5d23e5b | 310 | |
1da177e4 LT |
311 | config IA64_BRL_EMU |
312 | bool | |
313 | depends on ITANIUM | |
314 | default y | |
315 | ||
316 | # align cache-sensitive data to 128 bytes | |
317 | config IA64_L1_CACHE_SHIFT | |
318 | int | |
319 | default "7" if MCKINLEY | |
320 | default "6" if ITANIUM | |
321 | ||
1da177e4 LT |
322 | config IA64_CYCLONE |
323 | bool "Cyclone (EXA) Time Source support" | |
324 | help | |
325 | Say Y here to enable support for IBM EXA Cyclone time source. | |
326 | If you're unsure, answer N. | |
327 | ||
328 | config IOSAPIC | |
329 | bool | |
330 | depends on !IA64_HP_SIM | |
331 | default y | |
332 | ||
1da177e4 | 333 | config FORCE_MAX_ZONEORDER |
da9577c5 BP |
334 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
335 | range 11 17 if !HUGETLB_PAGE | |
336 | default "17" if HUGETLB_PAGE | |
337 | default "11" | |
1da177e4 | 338 | |
b64f34cd HS |
339 | config VIRT_CPU_ACCOUNTING |
340 | bool "Deterministic task and CPU time accounting" | |
341 | default n | |
342 | help | |
343 | Select this option to enable more accurate task and CPU time | |
344 | accounting. This is done by reading a CPU counter on each | |
345 | kernel entry and exit and on transitions within the kernel | |
346 | between system, softirq and hardirq state, so there is a | |
347 | small performance impact. | |
348 | If in doubt, say N here. | |
349 | ||
1da177e4 LT |
350 | config SMP |
351 | bool "Symmetric multi-processing support" | |
f27b433e | 352 | select USE_GENERIC_SMP_HELPERS |
1da177e4 LT |
353 | help |
354 | This enables support for systems with more than one CPU. If you have | |
355 | a system with only one CPU, say N. If you have a system with more | |
356 | than one CPU, say Y. | |
357 | ||
358 | If you say N here, the kernel will run on single and multiprocessor | |
359 | systems, but will use only one CPU of a multiprocessor system. If | |
360 | you say Y here, the kernel will run on many, but not all, | |
361 | single processor systems. On a single processor system, the kernel | |
362 | will run faster if you say N here. | |
363 | ||
03502faa AB |
364 | See also the SMP-HOWTO available at |
365 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
366 | |
367 | If you don't know what to do here, say N. | |
368 | ||
369 | config NR_CPUS | |
d1339df1 RH |
370 | int "Maximum number of CPUs (2-4096)" |
371 | range 2 4096 | |
1da177e4 | 372 | depends on SMP |
d1339df1 | 373 | default "4096" |
1da177e4 LT |
374 | help |
375 | You should set this to the number of CPUs in your system, but | |
376 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but | |
377 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger | |
378 | than 64 will cause the use of a CPU mask array, causing a small | |
379 | performance hit. | |
380 | ||
381 | config HOTPLUG_CPU | |
382 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
383 | depends on SMP && EXPERIMENTAL | |
384 | select HOTPLUG | |
385 | default n | |
386 | ---help--- | |
387 | Say Y here to experiment with turning CPUs off and on. CPUs | |
388 | can be controlled through /sys/devices/system/cpu/cpu#. | |
389 | Say N if you want to disable CPU hotplug. | |
390 | ||
cc57637b YG |
391 | config ARCH_ENABLE_MEMORY_HOTPLUG |
392 | def_bool y | |
393 | ||
0c0e6195 KH |
394 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
395 | def_bool y | |
396 | ||
7a9bdd88 SS |
397 | config SCHED_SMT |
398 | bool "SMT scheduler support" | |
399 | depends on SMP | |
7a9bdd88 SS |
400 | help |
401 | Improves the CPU scheduler's decision making when dealing with | |
402 | Intel IA64 chips with MultiThreading at a cost of slightly increased | |
403 | overhead in some places. If unsure say N here. | |
404 | ||
ff741906 AR |
405 | config PERMIT_BSP_REMOVE |
406 | bool "Support removal of Bootstrap Processor" | |
407 | depends on HOTPLUG_CPU | |
408 | default n | |
409 | ---help--- | |
410 | Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU | |
411 | support. | |
412 | ||
413 | config FORCE_CPEI_RETARGET | |
414 | bool "Force assumption that CPEI can be re-targetted" | |
415 | depends on PERMIT_BSP_REMOVE | |
416 | default n | |
417 | ---help--- | |
418 | Say Y if you need to force the assumption that CPEI can be re-targetted to | |
419 | any cpu in the system. This hint is available via ACPI 3.0 specifications. | |
420 | Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. | |
421 | This option it useful to enable this feature on older BIOS's as well. | |
422 | You can also enable this by using boot command line option force_cpei=1. | |
423 | ||
0b0517a4 | 424 | source "kernel/Kconfig.preempt" |
1da177e4 | 425 | |
3f22ab27 DH |
426 | source "mm/Kconfig" |
427 | ||
da9577c5 BP |
428 | config ARCH_SELECT_MEMORY_MODEL |
429 | def_bool y | |
430 | ||
431 | config ARCH_DISCONTIGMEM_ENABLE | |
432 | def_bool y | |
433 | help | |
434 | Say Y to support efficient handling of discontiguous physical memory, | |
435 | for architectures which are either NUMA (Non-Uniform Memory Access) | |
436 | or have huge holes in the physical address space for other reasons. | |
437 | See <file:Documentation/vm/numa> for more. | |
438 | ||
439 | config ARCH_FLATMEM_ENABLE | |
440 | def_bool y | |
441 | ||
442 | config ARCH_SPARSEMEM_ENABLE | |
443 | def_bool y | |
444 | depends on ARCH_DISCONTIGMEM_ENABLE | |
ef229c5a | 445 | select SPARSEMEM_VMEMMAP_ENABLE |
da9577c5 BP |
446 | |
447 | config ARCH_DISCONTIGMEM_DEFAULT | |
448 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) | |
449 | depends on ARCH_DISCONTIGMEM_ENABLE | |
450 | ||
451 | config NUMA | |
452 | bool "NUMA support" | |
453 | depends on !IA64_HP_SIM && !FLATMEM | |
454 | default y if IA64_SGI_SN2 | |
6c33eb39 | 455 | select ACPI_NUMA if ACPI |
da9577c5 BP |
456 | help |
457 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
458 | Access). This option is for configuring high-end multiprocessor | |
459 | server systems. If in doubt, say N. | |
460 | ||
c80d79d7 YG |
461 | config NODES_SHIFT |
462 | int "Max num nodes shift(3-10)" | |
463 | range 3 10 | |
c57d68ca | 464 | default "10" |
c80d79d7 YG |
465 | depends on NEED_MULTIPLE_NODES |
466 | help | |
467 | This option specifies the maximum number of nodes in your SSI system. | |
468 | MAX_NUMNODES will be 2^(This value). | |
469 | If in doubt, use the default. | |
470 | ||
05e0caad MG |
471 | config ARCH_POPULATES_NODE_MAP |
472 | def_bool y | |
473 | ||
da9577c5 BP |
474 | # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. |
475 | # VIRTUAL_MEM_MAP has been retained for historical reasons. | |
476 | config VIRTUAL_MEM_MAP | |
477 | bool "Virtual mem map" | |
478 | depends on !SPARSEMEM | |
479 | default y if !IA64_HP_SIM | |
480 | help | |
481 | Say Y to compile the kernel with support for a virtual mem map. | |
482 | This code also only takes effect if a memory hole of greater than | |
483 | 1 Gb is found during boot. You must turn this option on if you | |
484 | require the DISCONTIGMEM option for your machine. If you are | |
485 | unsure, say Y. | |
486 | ||
487 | config HOLES_IN_ZONE | |
488 | bool | |
489 | default y if VIRTUAL_MEM_MAP | |
490 | ||
491 | config HAVE_ARCH_EARLY_PFN_TO_NID | |
334f85b6 | 492 | def_bool NUMA && SPARSEMEM |
da9577c5 | 493 | |
10ad400b YG |
494 | config HAVE_ARCH_NODEDATA_EXTENSION |
495 | def_bool y | |
496 | depends on NUMA | |
497 | ||
9492587c KH |
498 | config ARCH_PROC_KCORE_TEXT |
499 | def_bool y | |
500 | depends on PROC_KCORE | |
501 | ||
1da177e4 LT |
502 | config IA64_MCA_RECOVERY |
503 | tristate "MCA recovery from errors other than TLB." | |
504 | ||
505 | config PERFMON | |
506 | bool "Performance monitor support" | |
507 | help | |
508 | Selects whether support for the IA-64 performance monitor hardware | |
509 | is included in the kernel. This makes some kernel data-structures a | |
510 | little bigger and slows down execution a bit, but it is generally | |
511 | a good idea to turn this on. If you're unsure, say Y. | |
512 | ||
513 | config IA64_PALINFO | |
514 | tristate "/proc/pal support" | |
515 | help | |
516 | If you say Y here, you are able to get PAL (Processor Abstraction | |
517 | Layer) information in /proc/pal. This contains useful information | |
518 | about the processors in your systems, such as cache and TLB sizes | |
519 | and the PAL firmware version in use. | |
520 | ||
521 | To use this option, you have to ensure that the "/proc file system | |
522 | support" (CONFIG_PROC_FS) is enabled, too. | |
523 | ||
e9ef08bd FY |
524 | config IA64_MC_ERR_INJECT |
525 | tristate "MC error injection support" | |
526 | help | |
01dd2fbf ML |
527 | Adds support for MC error injection. If enabled, the kernel |
528 | will provide a sysfs interface for user applications to | |
529 | call MC error injection PAL procedures to inject various errors. | |
e9ef08bd FY |
530 | This is a useful tool for MCA testing. |
531 | ||
532 | If you're unsure, do not select this option. | |
533 | ||
466575f4 JS |
534 | config SGI_SN |
535 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) | |
536 | ||
2ab561a1 DMT |
537 | config IA64_ESI |
538 | bool "ESI (Extensible SAL Interface) support" | |
539 | help | |
540 | If you say Y here, support is built into the kernel to | |
541 | make ESI calls. ESI calls are used to support vendor-specific | |
542 | firmware extensions, such as the ability to inject memory-errors | |
543 | for test-purposes. If you're unsure, say N. | |
544 | ||
28eda5b8 BH |
545 | config IA64_HP_AML_NFW |
546 | bool "Support ACPI AML calls to native firmware" | |
547 | help | |
548 | This driver installs a global ACPI Operation Region handler for | |
549 | region 0xA1. AML methods can use this OpRegion to call arbitrary | |
550 | native firmware functions. The driver installs the OpRegion | |
551 | handler if there is an HPQ5001 device or if the user supplies | |
552 | the "force" module parameter, e.g., with the "aml_nfw.force" | |
553 | kernel command line option. | |
554 | ||
c1311af1 BC |
555 | source "drivers/sn/Kconfig" |
556 | ||
a7956113 ZN |
557 | config KEXEC |
558 | bool "kexec system call (EXPERIMENTAL)" | |
559 | depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) | |
560 | help | |
561 | kexec is a system call that implements the ability to shutdown your | |
562 | current kernel, and to start another kernel. It is like a reboot | |
3dde6ad8 | 563 | but it is independent of the system firmware. And like a reboot |
a7956113 ZN |
564 | you can start any kernel with it, not just Linux. |
565 | ||
01dd2fbf | 566 | The name comes from the similarity to the exec system call. |
a7956113 ZN |
567 | |
568 | It is an ongoing process to be certain the hardware in a machine | |
569 | is properly shutdown, so do not be surprised if this code does not | |
570 | initially work for you. It may help to enable device hotplugging | |
571 | support. As of this writing the exact hardware interface is | |
572 | strongly in flux, so no good recommendation can be made. | |
573 | ||
574 | config CRASH_DUMP | |
fb86611f BW |
575 | bool "kernel crash dumps" |
576 | depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) | |
a7956113 ZN |
577 | help |
578 | Generate crash dump after being started by kexec. | |
579 | ||
1da177e4 LT |
580 | source "drivers/firmware/Kconfig" |
581 | ||
582 | source "fs/Kconfig.binfmt" | |
583 | ||
584 | endmenu | |
585 | ||
1547a012 | 586 | menu "Power management and ACPI options" |
1da177e4 | 587 | |
eb7b6b32 | 588 | source "kernel/power/Kconfig" |
1da177e4 LT |
589 | |
590 | source "drivers/acpi/Kconfig" | |
591 | ||
4db8699b VP |
592 | if PM |
593 | ||
594 | source "arch/ia64/kernel/cpufreq/Kconfig" | |
595 | ||
596 | endif | |
597 | ||
1da177e4 LT |
598 | endmenu |
599 | ||
600 | if !IA64_HP_SIM | |
601 | ||
602 | menu "Bus options (PCI, PCMCIA)" | |
603 | ||
604 | config PCI | |
605 | bool "PCI support" | |
606 | help | |
85f265d8 CH |
607 | Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y |
608 | here unless you are using a simulator without PCI support. | |
1da177e4 LT |
609 | |
610 | config PCI_DOMAINS | |
36e23590 MW |
611 | def_bool PCI |
612 | ||
613 | config PCI_SYSCALL | |
614 | def_bool PCI | |
1da177e4 | 615 | |
b7bb575c KK |
616 | source "drivers/pci/pcie/Kconfig" |
617 | ||
1da177e4 LT |
618 | source "drivers/pci/Kconfig" |
619 | ||
620 | source "drivers/pci/hotplug/Kconfig" | |
621 | ||
622 | source "drivers/pcmcia/Kconfig" | |
623 | ||
62fdd767 FY |
624 | config DMAR |
625 | bool "Support for DMA Remapping Devices (EXPERIMENTAL)" | |
626 | depends on IA64_GENERIC && ACPI && EXPERIMENTAL | |
627 | help | |
628 | DMA remapping (DMAR) devices support enables independent address | |
629 | translations for Direct Memory Access (DMA) from devices. | |
630 | These DMA remapping devices are reported via ACPI tables | |
631 | and include PCI device scope covered by these DMA | |
632 | remapping devices. | |
633 | ||
6b1ff036 KM |
634 | config DMAR_DEFAULT_ON |
635 | def_bool y | |
636 | prompt "Enable DMA Remapping Devices by default" | |
637 | depends on DMAR | |
638 | help | |
639 | Selecting this option will enable a DMAR device at boot time if | |
640 | one is found. If this option is not selected, DMAR support can | |
641 | be enabled by passing intel_iommu=on to the kernel. It is | |
642 | recommended you say N here while the DMAR code remains | |
643 | experimental. | |
644 | ||
1da177e4 LT |
645 | endmenu |
646 | ||
647 | endif | |
648 | ||
d5950b43 SR |
649 | source "net/Kconfig" |
650 | ||
1da177e4 LT |
651 | source "drivers/Kconfig" |
652 | ||
1547a012 BH |
653 | source "arch/ia64/hp/sim/Kconfig" |
654 | ||
1a4b0fc5 JS |
655 | config MSPEC |
656 | tristate "Memory special operations driver" | |
657 | depends on IA64 | |
658 | select IA64_UNCACHED_ALLOCATOR | |
659 | help | |
660 | If you have an ia64 and you want to enable memory special | |
661 | operations support (formerly known as fetchop), say Y here, | |
662 | otherwise say N. | |
663 | ||
1da177e4 LT |
664 | source "fs/Kconfig" |
665 | ||
1547a012 BH |
666 | source "arch/ia64/Kconfig.debug" |
667 | ||
668 | source "security/Kconfig" | |
669 | ||
670 | source "crypto/Kconfig" | |
671 | ||
b693919c XZ |
672 | source "arch/ia64/kvm/Kconfig" |
673 | ||
1da177e4 LT |
674 | source "lib/Kconfig" |
675 | ||
676 | # | |
677 | # Use the generic interrupt handling code in kernel/irq/: | |
678 | # | |
679 | config GENERIC_HARDIRQS | |
680 | bool | |
681 | default y | |
682 | ||
683 | config GENERIC_IRQ_PROBE | |
684 | bool | |
685 | default y | |
686 | ||
54d5d424 AR |
687 | config GENERIC_PENDING_IRQ |
688 | bool | |
689 | depends on GENERIC_HARDIRQS && SMP | |
690 | default y | |
691 | ||
0d7012a9 IM |
692 | config IRQ_PER_CPU |
693 | bool | |
694 | default y | |
695 | ||
b34eb53c | 696 | config IOMMU_HELPER |
a8522509 | 697 | def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) |
1aaf1183 JR |
698 | |
699 | config IOMMU_API | |
700 | def_bool (DMAR) |