Commit | Line | Data |
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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 |
74bc7cee | 25 | select HAVE_DMA_ATTRS |
b693919c | 26 | select HAVE_KVM |
9690ad03 | 27 | select HAVE_ARCH_TRACEHOOK |
1da177e4 LT |
28 | default y |
29 | help | |
30 | The Itanium Processor Family is Intel's 64-bit successor to | |
31 | the 32-bit X86 line. The IA-64 Linux project has a home | |
32 | page at <http://www.linuxia64.org/> and a mailing list at | |
33 | <linux-ia64@vger.kernel.org>. | |
34 | ||
35 | config 64BIT | |
36 | bool | |
9f271d57 | 37 | select ATA_NONSTANDARD if ATA |
1da177e4 LT |
38 | default y |
39 | ||
66701b14 | 40 | config ZONE_DMA |
09ae1f58 CL |
41 | def_bool y |
42 | depends on !IA64_SGI_SN2 | |
66701b14 | 43 | |
2bd62a40 CL |
44 | config QUICKLIST |
45 | bool | |
46 | default y | |
47 | ||
1da177e4 LT |
48 | config MMU |
49 | bool | |
50 | default y | |
51 | ||
6c654b5f JL |
52 | config SWIOTLB |
53 | bool | |
6c654b5f | 54 | |
a8522509 FT |
55 | config IOMMU_HELPER |
56 | bool | |
57 | ||
95c354fe NP |
58 | config GENERIC_LOCKBREAK |
59 | bool | |
60 | default y | |
61 | depends on SMP && PREEMPT | |
62 | ||
1da177e4 LT |
63 | config RWSEM_XCHGADD_ALGORITHM |
64 | bool | |
65 | default y | |
66 | ||
d9c23400 MG |
67 | config HUGETLB_PAGE_SIZE_VARIABLE |
68 | bool | |
69 | depends on HUGETLB_PAGE | |
70 | default y | |
71 | ||
2875aef8 AM |
72 | config GENERIC_FIND_NEXT_BIT |
73 | bool | |
74 | default y | |
75 | ||
1da177e4 LT |
76 | config GENERIC_CALIBRATE_DELAY |
77 | bool | |
78 | default y | |
79 | ||
0aa366f3 TL |
80 | config GENERIC_TIME |
81 | bool | |
82 | default y | |
83 | ||
84 | config GENERIC_TIME_VSYSCALL | |
1da177e4 LT |
85 | bool |
86 | default y | |
87 | ||
988c388a | 88 | config HAVE_SETUP_PER_CPU_AREA |
b32ef636 | 89 | def_bool y |
90 | ||
3ed3bce8 MD |
91 | config DMI |
92 | bool | |
93 | default y | |
94 | ||
1da177e4 LT |
95 | config EFI |
96 | bool | |
97 | default y | |
98 | ||
99 | config GENERIC_IOMAP | |
100 | bool | |
101 | default y | |
102 | ||
ae1e9130 | 103 | config SCHED_OMIT_FRAME_POINTER |
7d12e522 AB |
104 | bool |
105 | default y | |
106 | ||
f14f75b8 JS |
107 | config IA64_UNCACHED_ALLOCATOR |
108 | bool | |
109 | select GENERIC_ALLOCATOR | |
110 | ||
e65e1fc2 AV |
111 | config AUDIT_ARCH |
112 | bool | |
113 | default y | |
114 | ||
ba9cc328 IY |
115 | menuconfig PARAVIRT_GUEST |
116 | bool "Paravirtualized guest support" | |
117 | help | |
118 | Say Y here to get to see options related to running Linux under | |
119 | various hypervisors. This option alone does not add any kernel code. | |
120 | ||
121 | If you say N, all options in this submenu will be skipped and disabled. | |
122 | ||
123 | if PARAVIRT_GUEST | |
124 | ||
125 | config PARAVIRT | |
126 | bool "Enable paravirtualization code" | |
127 | depends on PARAVIRT_GUEST | |
128 | default y | |
129 | bool | |
130 | default y | |
131 | help | |
132 | This changes the kernel so it can modify itself when it is run | |
133 | under a hypervisor, potentially improving performance significantly | |
134 | over full virtualization. However, when run without a hypervisor | |
135 | the kernel is theoretically slower and slightly larger. | |
136 | ||
137 | ||
138 | source "arch/ia64/xen/Kconfig" | |
139 | ||
140 | endif | |
141 | ||
1da177e4 LT |
142 | choice |
143 | prompt "System type" | |
144 | default IA64_GENERIC | |
145 | ||
146 | config IA64_GENERIC | |
147 | bool "generic" | |
148 | select NUMA | |
149 | select ACPI_NUMA | |
d1598e05 | 150 | select SWIOTLB |
62fdd767 | 151 | select PCI_MSI |
f2b3fdc8 | 152 | select DMAR |
1da177e4 LT |
153 | help |
154 | This selects the system type of your hardware. A "generic" kernel | |
155 | will run on any supported IA-64 system. However, if you configure | |
156 | a kernel for your specific system, it will be faster and smaller. | |
157 | ||
158 | generic For any supported IA-64 system | |
159 | DIG-compliant For DIG ("Developer's Interface Guide") compliant systems | |
62fdd767 | 160 | DIG+Intel+IOMMU For DIG systems with Intel IOMMU |
1da177e4 LT |
161 | HP-zx1/sx1000 For HP systems |
162 | HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices. | |
163 | SGI-SN2 For SGI Altix systems | |
22246614 | 164 | SGI-UV For SGI UV systems |
1da177e4 | 165 | Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/> |
ba9cc328 | 166 | Xen-domU For xen domU system |
1da177e4 LT |
167 | |
168 | If you don't know what to do, choose "generic". | |
169 | ||
170 | config IA64_DIG | |
171 | bool "DIG-compliant" | |
d1598e05 | 172 | select SWIOTLB |
1da177e4 | 173 | |
62fdd767 FY |
174 | config IA64_DIG_VTD |
175 | bool "DIG+Intel+IOMMU" | |
176 | select DMAR | |
177 | select PCI_MSI | |
178 | ||
1da177e4 LT |
179 | config IA64_HP_ZX1 |
180 | bool "HP-zx1/sx1000" | |
181 | help | |
182 | Build a kernel that runs on HP zx1 and sx1000 systems. This adds | |
183 | support for the HP I/O MMU. | |
184 | ||
185 | config IA64_HP_ZX1_SWIOTLB | |
186 | bool "HP-zx1/sx1000 with software I/O TLB" | |
d1598e05 | 187 | select SWIOTLB |
1da177e4 LT |
188 | help |
189 | Build a kernel that runs on HP zx1 and sx1000 systems even when they | |
190 | have broken PCI devices which cannot DMA to full 32 bits. Apart | |
191 | from support for the HP I/O MMU, this includes support for the software | |
192 | I/O TLB, which allows supporting the broken devices at the expense of | |
193 | wasting some kernel memory (about 2MB by default). | |
194 | ||
195 | config IA64_SGI_SN2 | |
196 | bool "SGI-SN2" | |
bd3be240 JS |
197 | select NUMA |
198 | select ACPI_NUMA | |
1da177e4 LT |
199 | help |
200 | Selecting this option will optimize the kernel for use on sn2 based | |
201 | systems, but the resulting kernel binary will not run on other | |
202 | types of ia64 systems. If you have an SGI Altix system, it's safe | |
203 | to select this option. If in doubt, select ia64 generic support | |
204 | instead. | |
205 | ||
3351ab9b JS |
206 | config IA64_SGI_UV |
207 | bool "SGI-UV" | |
22246614 JS |
208 | select NUMA |
209 | select ACPI_NUMA | |
210 | select SWIOTLB | |
211 | help | |
212 | Selecting this option will optimize the kernel for use on UV based | |
213 | systems, but the resulting kernel binary will not run on other | |
214 | types of ia64 systems. If you have an SGI UV system, it's safe | |
215 | to select this option. If in doubt, select ia64 generic support | |
216 | instead. | |
217 | ||
1da177e4 LT |
218 | config IA64_HP_SIM |
219 | bool "Ski-simulator" | |
d1598e05 | 220 | select SWIOTLB |
1da177e4 | 221 | |
ba9cc328 IY |
222 | config IA64_XEN_GUEST |
223 | bool "Xen guest" | |
224 | depends on XEN | |
225 | ||
1da177e4 LT |
226 | endchoice |
227 | ||
228 | choice | |
229 | prompt "Processor type" | |
230 | default ITANIUM | |
231 | ||
232 | config ITANIUM | |
233 | bool "Itanium" | |
234 | help | |
235 | Select your IA-64 processor type. The default is Itanium. | |
236 | This choice is safe for all IA-64 systems, but may not perform | |
237 | optimally on systems with, say, Itanium 2 or newer processors. | |
238 | ||
239 | config MCKINLEY | |
240 | bool "Itanium 2" | |
241 | help | |
242 | Select this to configure for an Itanium 2 (McKinley) processor. | |
243 | ||
244 | endchoice | |
245 | ||
246 | choice | |
247 | prompt "Kernel page size" | |
248 | default IA64_PAGE_SIZE_16KB | |
249 | ||
250 | config IA64_PAGE_SIZE_4KB | |
251 | bool "4KB" | |
252 | help | |
253 | This lets you select the page size of the kernel. For best IA-64 | |
254 | performance, a page size of 8KB or 16KB is recommended. For best | |
255 | IA-32 compatibility, a page size of 4KB should be selected (the vast | |
256 | majority of IA-32 binaries work perfectly fine with a larger page | |
257 | size). For Itanium 2 or newer systems, a page size of 64KB can also | |
258 | be selected. | |
259 | ||
260 | 4KB For best IA-32 compatibility | |
261 | 8KB For best IA-64 performance | |
262 | 16KB For best IA-64 performance | |
263 | 64KB Requires Itanium 2 or newer processor. | |
264 | ||
265 | If you don't know what to do, choose 16KB. | |
266 | ||
267 | config IA64_PAGE_SIZE_8KB | |
268 | bool "8KB" | |
269 | ||
270 | config IA64_PAGE_SIZE_16KB | |
271 | bool "16KB" | |
272 | ||
273 | config IA64_PAGE_SIZE_64KB | |
274 | depends on !ITANIUM | |
275 | bool "64KB" | |
276 | ||
277 | endchoice | |
278 | ||
837cd0bd RH |
279 | choice |
280 | prompt "Page Table Levels" | |
281 | default PGTABLE_3 | |
282 | ||
283 | config PGTABLE_3 | |
284 | bool "3 Levels" | |
285 | ||
286 | config PGTABLE_4 | |
287 | depends on !IA64_PAGE_SIZE_64KB | |
288 | bool "4 Levels" | |
289 | ||
290 | endchoice | |
291 | ||
10d0aa3c TL |
292 | if IA64_HP_SIM |
293 | config HZ | |
294 | default 32 | |
295 | endif | |
296 | ||
297 | if !IA64_HP_SIM | |
b5d23e5b | 298 | source kernel/Kconfig.hz |
10d0aa3c | 299 | endif |
b5d23e5b | 300 | |
1da177e4 LT |
301 | config IA64_BRL_EMU |
302 | bool | |
303 | depends on ITANIUM | |
304 | default y | |
305 | ||
306 | # align cache-sensitive data to 128 bytes | |
307 | config IA64_L1_CACHE_SHIFT | |
308 | int | |
309 | default "7" if MCKINLEY | |
310 | default "6" if ITANIUM | |
311 | ||
1da177e4 LT |
312 | config IA64_CYCLONE |
313 | bool "Cyclone (EXA) Time Source support" | |
314 | help | |
315 | Say Y here to enable support for IBM EXA Cyclone time source. | |
316 | If you're unsure, answer N. | |
317 | ||
318 | config IOSAPIC | |
319 | bool | |
320 | depends on !IA64_HP_SIM | |
321 | default y | |
322 | ||
1da177e4 | 323 | config FORCE_MAX_ZONEORDER |
da9577c5 BP |
324 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
325 | range 11 17 if !HUGETLB_PAGE | |
326 | default "17" if HUGETLB_PAGE | |
327 | default "11" | |
1da177e4 | 328 | |
b64f34cd HS |
329 | config VIRT_CPU_ACCOUNTING |
330 | bool "Deterministic task and CPU time accounting" | |
331 | default n | |
332 | help | |
333 | Select this option to enable more accurate task and CPU time | |
334 | accounting. This is done by reading a CPU counter on each | |
335 | kernel entry and exit and on transitions within the kernel | |
336 | between system, softirq and hardirq state, so there is a | |
337 | small performance impact. | |
338 | If in doubt, say N here. | |
339 | ||
1da177e4 LT |
340 | config SMP |
341 | bool "Symmetric multi-processing support" | |
f27b433e | 342 | select USE_GENERIC_SMP_HELPERS |
1da177e4 LT |
343 | help |
344 | This enables support for systems with more than one CPU. If you have | |
345 | a system with only one CPU, say N. If you have a system with more | |
346 | than one CPU, say Y. | |
347 | ||
348 | If you say N here, the kernel will run on single and multiprocessor | |
349 | systems, but will use only one CPU of a multiprocessor system. If | |
350 | you say Y here, the kernel will run on many, but not all, | |
351 | single processor systems. On a single processor system, the kernel | |
352 | will run faster if you say N here. | |
353 | ||
03502faa AB |
354 | See also the SMP-HOWTO available at |
355 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
356 | |
357 | If you don't know what to do here, say N. | |
358 | ||
359 | config NR_CPUS | |
d1339df1 RH |
360 | int "Maximum number of CPUs (2-4096)" |
361 | range 2 4096 | |
1da177e4 | 362 | depends on SMP |
d1339df1 | 363 | default "4096" |
1da177e4 LT |
364 | help |
365 | You should set this to the number of CPUs in your system, but | |
366 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but | |
367 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger | |
368 | than 64 will cause the use of a CPU mask array, causing a small | |
369 | performance hit. | |
370 | ||
371 | config HOTPLUG_CPU | |
372 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" | |
373 | depends on SMP && EXPERIMENTAL | |
374 | select HOTPLUG | |
375 | default n | |
376 | ---help--- | |
377 | Say Y here to experiment with turning CPUs off and on. CPUs | |
378 | can be controlled through /sys/devices/system/cpu/cpu#. | |
379 | Say N if you want to disable CPU hotplug. | |
380 | ||
cc57637b YG |
381 | config ARCH_ENABLE_MEMORY_HOTPLUG |
382 | def_bool y | |
383 | ||
0c0e6195 KH |
384 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
385 | def_bool y | |
386 | ||
7a9bdd88 SS |
387 | config SCHED_SMT |
388 | bool "SMT scheduler support" | |
389 | depends on SMP | |
7a9bdd88 SS |
390 | help |
391 | Improves the CPU scheduler's decision making when dealing with | |
392 | Intel IA64 chips with MultiThreading at a cost of slightly increased | |
393 | overhead in some places. If unsure say N here. | |
394 | ||
ff741906 AR |
395 | config PERMIT_BSP_REMOVE |
396 | bool "Support removal of Bootstrap Processor" | |
397 | depends on HOTPLUG_CPU | |
398 | default n | |
399 | ---help--- | |
400 | Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU | |
401 | support. | |
402 | ||
403 | config FORCE_CPEI_RETARGET | |
404 | bool "Force assumption that CPEI can be re-targetted" | |
405 | depends on PERMIT_BSP_REMOVE | |
406 | default n | |
407 | ---help--- | |
408 | Say Y if you need to force the assumption that CPEI can be re-targetted to | |
409 | any cpu in the system. This hint is available via ACPI 3.0 specifications. | |
410 | Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. | |
411 | This option it useful to enable this feature on older BIOS's as well. | |
412 | You can also enable this by using boot command line option force_cpei=1. | |
413 | ||
0b0517a4 | 414 | source "kernel/Kconfig.preempt" |
1da177e4 | 415 | |
3f22ab27 DH |
416 | source "mm/Kconfig" |
417 | ||
da9577c5 BP |
418 | config ARCH_SELECT_MEMORY_MODEL |
419 | def_bool y | |
420 | ||
421 | config ARCH_DISCONTIGMEM_ENABLE | |
422 | def_bool y | |
423 | help | |
424 | Say Y to support efficient handling of discontiguous physical memory, | |
425 | for architectures which are either NUMA (Non-Uniform Memory Access) | |
426 | or have huge holes in the physical address space for other reasons. | |
427 | See <file:Documentation/vm/numa> for more. | |
428 | ||
429 | config ARCH_FLATMEM_ENABLE | |
430 | def_bool y | |
431 | ||
432 | config ARCH_SPARSEMEM_ENABLE | |
433 | def_bool y | |
434 | depends on ARCH_DISCONTIGMEM_ENABLE | |
ef229c5a | 435 | select SPARSEMEM_VMEMMAP_ENABLE |
da9577c5 BP |
436 | |
437 | config ARCH_DISCONTIGMEM_DEFAULT | |
438 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) | |
439 | depends on ARCH_DISCONTIGMEM_ENABLE | |
440 | ||
441 | config NUMA | |
442 | bool "NUMA support" | |
443 | depends on !IA64_HP_SIM && !FLATMEM | |
444 | default y if IA64_SGI_SN2 | |
6c33eb39 | 445 | select ACPI_NUMA if ACPI |
da9577c5 BP |
446 | help |
447 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
448 | Access). This option is for configuring high-end multiprocessor | |
449 | server systems. If in doubt, say N. | |
450 | ||
c80d79d7 YG |
451 | config NODES_SHIFT |
452 | int "Max num nodes shift(3-10)" | |
453 | range 3 10 | |
c57d68ca | 454 | default "10" |
c80d79d7 YG |
455 | depends on NEED_MULTIPLE_NODES |
456 | help | |
457 | This option specifies the maximum number of nodes in your SSI system. | |
458 | MAX_NUMNODES will be 2^(This value). | |
459 | If in doubt, use the default. | |
460 | ||
05e0caad MG |
461 | config ARCH_POPULATES_NODE_MAP |
462 | def_bool y | |
463 | ||
da9577c5 BP |
464 | # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. |
465 | # VIRTUAL_MEM_MAP has been retained for historical reasons. | |
466 | config VIRTUAL_MEM_MAP | |
467 | bool "Virtual mem map" | |
468 | depends on !SPARSEMEM | |
469 | default y if !IA64_HP_SIM | |
470 | help | |
471 | Say Y to compile the kernel with support for a virtual mem map. | |
472 | This code also only takes effect if a memory hole of greater than | |
473 | 1 Gb is found during boot. You must turn this option on if you | |
474 | require the DISCONTIGMEM option for your machine. If you are | |
475 | unsure, say Y. | |
476 | ||
477 | config HOLES_IN_ZONE | |
478 | bool | |
479 | default y if VIRTUAL_MEM_MAP | |
480 | ||
481 | config HAVE_ARCH_EARLY_PFN_TO_NID | |
482 | def_bool y | |
483 | depends on NEED_MULTIPLE_NODES | |
484 | ||
10ad400b YG |
485 | config HAVE_ARCH_NODEDATA_EXTENSION |
486 | def_bool y | |
487 | depends on NUMA | |
488 | ||
1da177e4 LT |
489 | config IA32_SUPPORT |
490 | bool "Support for Linux/x86 binaries" | |
491 | help | |
492 | IA-64 processors can execute IA-32 (X86) instructions. By | |
493 | saying Y here, the kernel will include IA-32 system call | |
494 | emulation support which makes it possible to transparently | |
495 | run IA-32 Linux binaries on an IA-64 Linux system. | |
496 | If in doubt, say Y. | |
497 | ||
498 | config COMPAT | |
499 | bool | |
500 | depends on IA32_SUPPORT | |
501 | default y | |
502 | ||
7a6c8135 TL |
503 | config COMPAT_FOR_U64_ALIGNMENT |
504 | def_bool COMPAT | |
505 | ||
1da177e4 LT |
506 | config IA64_MCA_RECOVERY |
507 | tristate "MCA recovery from errors other than TLB." | |
508 | ||
509 | config PERFMON | |
510 | bool "Performance monitor support" | |
511 | help | |
512 | Selects whether support for the IA-64 performance monitor hardware | |
513 | is included in the kernel. This makes some kernel data-structures a | |
514 | little bigger and slows down execution a bit, but it is generally | |
515 | a good idea to turn this on. If you're unsure, say Y. | |
516 | ||
517 | config IA64_PALINFO | |
518 | tristate "/proc/pal support" | |
519 | help | |
520 | If you say Y here, you are able to get PAL (Processor Abstraction | |
521 | Layer) information in /proc/pal. This contains useful information | |
522 | about the processors in your systems, such as cache and TLB sizes | |
523 | and the PAL firmware version in use. | |
524 | ||
525 | To use this option, you have to ensure that the "/proc file system | |
526 | support" (CONFIG_PROC_FS) is enabled, too. | |
527 | ||
e9ef08bd FY |
528 | config IA64_MC_ERR_INJECT |
529 | tristate "MC error injection support" | |
530 | help | |
01dd2fbf ML |
531 | Adds support for MC error injection. If enabled, the kernel |
532 | will provide a sysfs interface for user applications to | |
533 | call MC error injection PAL procedures to inject various errors. | |
e9ef08bd FY |
534 | This is a useful tool for MCA testing. |
535 | ||
536 | If you're unsure, do not select this option. | |
537 | ||
466575f4 JS |
538 | config SGI_SN |
539 | def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) | |
540 | ||
2ab561a1 DMT |
541 | config IA64_ESI |
542 | bool "ESI (Extensible SAL Interface) support" | |
543 | help | |
544 | If you say Y here, support is built into the kernel to | |
545 | make ESI calls. ESI calls are used to support vendor-specific | |
546 | firmware extensions, such as the ability to inject memory-errors | |
547 | for test-purposes. If you're unsure, say N. | |
548 | ||
28eda5b8 BH |
549 | config IA64_HP_AML_NFW |
550 | bool "Support ACPI AML calls to native firmware" | |
551 | help | |
552 | This driver installs a global ACPI Operation Region handler for | |
553 | region 0xA1. AML methods can use this OpRegion to call arbitrary | |
554 | native firmware functions. The driver installs the OpRegion | |
555 | handler if there is an HPQ5001 device or if the user supplies | |
556 | the "force" module parameter, e.g., with the "aml_nfw.force" | |
557 | kernel command line option. | |
558 | ||
c1311af1 BC |
559 | source "drivers/sn/Kconfig" |
560 | ||
a7956113 ZN |
561 | config KEXEC |
562 | bool "kexec system call (EXPERIMENTAL)" | |
563 | depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) | |
564 | help | |
565 | kexec is a system call that implements the ability to shutdown your | |
566 | current kernel, and to start another kernel. It is like a reboot | |
3dde6ad8 | 567 | but it is independent of the system firmware. And like a reboot |
a7956113 ZN |
568 | you can start any kernel with it, not just Linux. |
569 | ||
01dd2fbf | 570 | The name comes from the similarity to the exec system call. |
a7956113 ZN |
571 | |
572 | It is an ongoing process to be certain the hardware in a machine | |
573 | is properly shutdown, so do not be surprised if this code does not | |
574 | initially work for you. It may help to enable device hotplugging | |
575 | support. As of this writing the exact hardware interface is | |
576 | strongly in flux, so no good recommendation can be made. | |
577 | ||
578 | config CRASH_DUMP | |
fb86611f BW |
579 | bool "kernel crash dumps" |
580 | depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) | |
a7956113 ZN |
581 | help |
582 | Generate crash dump after being started by kexec. | |
583 | ||
1da177e4 LT |
584 | source "drivers/firmware/Kconfig" |
585 | ||
586 | source "fs/Kconfig.binfmt" | |
587 | ||
588 | endmenu | |
589 | ||
1547a012 | 590 | menu "Power management and ACPI options" |
1da177e4 | 591 | |
eb7b6b32 | 592 | source "kernel/power/Kconfig" |
1da177e4 LT |
593 | |
594 | source "drivers/acpi/Kconfig" | |
595 | ||
4db8699b VP |
596 | if PM |
597 | ||
598 | source "arch/ia64/kernel/cpufreq/Kconfig" | |
599 | ||
600 | endif | |
601 | ||
1da177e4 LT |
602 | endmenu |
603 | ||
604 | if !IA64_HP_SIM | |
605 | ||
606 | menu "Bus options (PCI, PCMCIA)" | |
607 | ||
608 | config PCI | |
609 | bool "PCI support" | |
610 | help | |
85f265d8 CH |
611 | Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y |
612 | here unless you are using a simulator without PCI support. | |
1da177e4 LT |
613 | |
614 | config PCI_DOMAINS | |
36e23590 MW |
615 | def_bool PCI |
616 | ||
617 | config PCI_SYSCALL | |
618 | def_bool PCI | |
1da177e4 | 619 | |
b7bb575c KK |
620 | source "drivers/pci/pcie/Kconfig" |
621 | ||
1da177e4 LT |
622 | source "drivers/pci/Kconfig" |
623 | ||
624 | source "drivers/pci/hotplug/Kconfig" | |
625 | ||
626 | source "drivers/pcmcia/Kconfig" | |
627 | ||
62fdd767 FY |
628 | config DMAR |
629 | bool "Support for DMA Remapping Devices (EXPERIMENTAL)" | |
630 | depends on IA64_GENERIC && ACPI && EXPERIMENTAL | |
631 | help | |
632 | DMA remapping (DMAR) devices support enables independent address | |
633 | translations for Direct Memory Access (DMA) from devices. | |
634 | These DMA remapping devices are reported via ACPI tables | |
635 | and include PCI device scope covered by these DMA | |
636 | remapping devices. | |
637 | ||
1da177e4 LT |
638 | endmenu |
639 | ||
640 | endif | |
641 | ||
d5950b43 SR |
642 | source "net/Kconfig" |
643 | ||
1da177e4 LT |
644 | source "drivers/Kconfig" |
645 | ||
1547a012 BH |
646 | source "arch/ia64/hp/sim/Kconfig" |
647 | ||
1a4b0fc5 JS |
648 | config MSPEC |
649 | tristate "Memory special operations driver" | |
650 | depends on IA64 | |
651 | select IA64_UNCACHED_ALLOCATOR | |
652 | help | |
653 | If you have an ia64 and you want to enable memory special | |
654 | operations support (formerly known as fetchop), say Y here, | |
655 | otherwise say N. | |
656 | ||
1da177e4 LT |
657 | source "fs/Kconfig" |
658 | ||
1547a012 BH |
659 | source "arch/ia64/Kconfig.debug" |
660 | ||
661 | source "security/Kconfig" | |
662 | ||
663 | source "crypto/Kconfig" | |
664 | ||
b693919c XZ |
665 | source "arch/ia64/kvm/Kconfig" |
666 | ||
1da177e4 LT |
667 | source "lib/Kconfig" |
668 | ||
669 | # | |
670 | # Use the generic interrupt handling code in kernel/irq/: | |
671 | # | |
672 | config GENERIC_HARDIRQS | |
673 | bool | |
674 | default y | |
675 | ||
676 | config GENERIC_IRQ_PROBE | |
677 | bool | |
678 | default y | |
679 | ||
54d5d424 AR |
680 | config GENERIC_PENDING_IRQ |
681 | bool | |
682 | depends on GENERIC_HARDIRQS && SMP | |
683 | default y | |
684 | ||
0d7012a9 IM |
685 | config IRQ_PER_CPU |
686 | bool | |
687 | default y | |
688 | ||
b34eb53c | 689 | config IOMMU_HELPER |
a8522509 | 690 | def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) |
1aaf1183 JR |
691 | |
692 | config IOMMU_API | |
693 | def_bool (DMAR) |