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b2670eac PBG |
1 | config DEFCONFIG_LIST |
2 | string | |
3 | option defconfig_list | |
4 | default "arch/$ARCH/defconfig" | |
5 | ||
1da177e4 LT |
6 | # UML uses the generic IRQ sugsystem |
7 | config GENERIC_HARDIRQS | |
8 | bool | |
9 | default y | |
10 | ||
11 | config UML | |
12 | bool | |
13 | default y | |
14 | ||
1da177e4 LT |
15 | config MMU |
16 | bool | |
17 | default y | |
18 | ||
5ea81769 AV |
19 | config NO_IOMEM |
20 | def_bool y | |
21 | ||
1da177e4 LT |
22 | mainmenu "Linux/Usermode Kernel Configuration" |
23 | ||
24 | config ISA | |
25 | bool | |
26 | ||
27 | config SBUS | |
28 | bool | |
29 | ||
30 | config PCI | |
31 | bool | |
32 | ||
694a464e AV |
33 | config PCMCIA |
34 | bool | |
35 | ||
711553ef PBG |
36 | # Yet to do! |
37 | config TRACE_IRQFLAGS_SUPPORT | |
38 | bool | |
39 | default n | |
40 | ||
41 | config LOCKDEP_SUPPORT | |
42 | bool | |
43 | default y | |
44 | ||
45 | config STACKTRACE_SUPPORT | |
46 | bool | |
6df0187e | 47 | default n |
711553ef | 48 | |
1da177e4 LT |
49 | config GENERIC_CALIBRATE_DELAY |
50 | bool | |
51 | default y | |
52 | ||
e182c965 JD |
53 | config GENERIC_BUG |
54 | bool | |
55 | default y | |
56 | depends on BUG | |
57 | ||
b77d6adc PBG |
58 | # Used in kernel/irq/manage.c and include/linux/irq.h |
59 | config IRQ_RELEASE_METHOD | |
60 | bool | |
61 | default y | |
62 | ||
1da177e4 LT |
63 | menu "UML-specific options" |
64 | ||
1da177e4 LT |
65 | config STATIC_LINK |
66 | bool "Force a static link" | |
67 | default n | |
1da177e4 | 68 | help |
42fda663 JD |
69 | This option gives you the ability to force a static link of UML. |
70 | Normally, UML is linked as a shared binary. This is inconvenient for | |
71 | use in a chroot jail. So, if you intend to run UML inside a chroot, | |
72 | you probably want to say Y here. | |
ca316fcf | 73 | Additionally, this option enables using higher memory spaces (up to |
42fda663 | 74 | 2.75G) for UML. |
1da177e4 | 75 | |
08b178eb | 76 | source "arch/um/Kconfig.arch" |
3f22ab27 | 77 | source "mm/Kconfig" |
1da177e4 LT |
78 | |
79 | config LD_SCRIPT_STATIC | |
80 | bool | |
81 | default y | |
42fda663 | 82 | depends on STATIC_LINK |
1da177e4 LT |
83 | |
84 | config LD_SCRIPT_DYN | |
85 | bool | |
86 | default y | |
87 | depends on !LD_SCRIPT_STATIC | |
88 | ||
89 | config NET | |
90 | bool "Networking support" | |
91 | help | |
92 | Unless you really know what you are doing, you should say Y here. | |
93 | The reason is that some programs need kernel networking support even | |
94 | when running on a stand-alone machine that isn't connected to any | |
95 | other computer. If you are upgrading from an older kernel, you | |
96 | should consider updating your networking tools too because changes | |
97 | in the kernel and the tools often go hand in hand. The tools are | |
98 | contained in the package net-tools, the location and version number | |
99 | of which are given in <file:Documentation/Changes>. | |
100 | ||
101 | For a general introduction to Linux networking, it is highly | |
102 | recommended to read the NET-HOWTO, available from | |
103 | <http://www.tldp.org/docs.html#howto>. | |
104 | ||
105 | ||
106 | source "fs/Kconfig.binfmt" | |
107 | ||
108 | config HOSTFS | |
109 | tristate "Host filesystem" | |
110 | help | |
111 | While the User-Mode Linux port uses its own root file system for | |
112 | booting and normal file access, this module lets the UML user | |
113 | access files stored on the host. It does not require any | |
114 | network connection between the Host and UML. An example use of | |
115 | this might be: | |
116 | ||
117 | mount none /tmp/fromhost -t hostfs -o /tmp/umlshare | |
118 | ||
119 | where /tmp/fromhost is an empty directory inside UML and | |
120 | /tmp/umlshare is a directory on the host with files the UML user | |
121 | wishes to access. | |
122 | ||
123 | For more information, see | |
124 | <http://user-mode-linux.sourceforge.net/hostfs.html>. | |
125 | ||
126 | If you'd like to be able to work with files stored on the host, | |
127 | say Y or M here; otherwise say N. | |
128 | ||
129 | config HPPFS | |
130 | tristate "HoneyPot ProcFS (EXPERIMENTAL)" | |
ce2d2aed | 131 | depends on EXPERIMENTAL |
1da177e4 LT |
132 | help |
133 | hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc | |
134 | entries to be overridden, removed, or fabricated from the host. | |
135 | Its purpose is to allow a UML to appear to be a physical machine | |
136 | by removing or changing anything in /proc which gives away the | |
137 | identity of a UML. | |
138 | ||
139 | See <http://user-mode-linux.sf.net/hppfs.html> for more information. | |
140 | ||
141 | You only need this if you are setting up a UML honeypot. Otherwise, | |
142 | it is safe to say 'N' here. | |
143 | ||
1da177e4 LT |
144 | config MCONSOLE |
145 | bool "Management console" | |
146 | default y | |
147 | help | |
148 | The user mode linux management console is a low-level interface to | |
149 | the kernel, somewhat like the i386 SysRq interface. Since there is | |
150 | a full-blown operating system running under every user mode linux | |
151 | instance, there is much greater flexibility possible than with the | |
152 | SysRq mechanism. | |
153 | ||
154 | If you answer 'Y' to this option, to use this feature, you need the | |
155 | mconsole client (called uml_mconsole) which is present in CVS in | |
156 | 2.4.5-9um and later (path /tools/mconsole), and is also in the | |
157 | distribution RPM package in 2.4.6 and later. | |
158 | ||
159 | It is safe to say 'Y' here. | |
160 | ||
161 | config MAGIC_SYSRQ | |
162 | bool "Magic SysRq key" | |
163 | depends on MCONSOLE | |
164 | ---help--- | |
165 | If you say Y here, you will have some control over the system even | |
166 | if the system crashes for example during kernel debugging (e.g., you | |
167 | will be able to flush the buffer cache to disk, reboot the system | |
168 | immediately or dump some status information). A key for each of the | |
169 | possible requests is provided. | |
170 | ||
171 | This is the feature normally accomplished by pressing a key | |
172 | while holding SysRq (Alt+PrintScreen). | |
173 | ||
174 | On UML, this is accomplished by sending a "sysrq" command with | |
175 | mconsole, followed by the letter for the requested command. | |
176 | ||
177 | The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y | |
178 | unless you really know what this hack does. | |
179 | ||
1da177e4 LT |
180 | config SMP |
181 | bool "Symmetric multi-processing support (EXPERIMENTAL)" | |
182 | default n | |
3b8d108a | 183 | #SMP_BROKEN is for x86_64. |
42fda663 | 184 | depends on EXPERIMENTAL && (!SMP_BROKEN || (BROKEN && SMP_BROKEN)) |
1da177e4 LT |
185 | help |
186 | This option enables UML SMP support. | |
187 | It is NOT related to having a real SMP box. Not directly, at least. | |
188 | ||
189 | UML implements virtual SMP by allowing as many processes to run | |
190 | simultaneously on the host as there are virtual processors configured. | |
191 | ||
192 | Obviously, if the host is a uniprocessor, those processes will | |
193 | timeshare, but, inside UML, will appear to be running simultaneously. | |
194 | If the host is a multiprocessor, then UML processes may run | |
195 | simultaneously, depending on the host scheduler. | |
196 | ||
197 | This, however, is supported only in TT mode. So, if you use the SKAS | |
198 | patch on your host, switching to TT mode and enabling SMP usually gives | |
199 | you worse performances. | |
200 | Also, since the support for SMP has been under-developed, there could | |
201 | be some bugs being exposed by enabling SMP. | |
202 | ||
203 | If you don't know what to do, say N. | |
204 | ||
205 | config NR_CPUS | |
206 | int "Maximum number of CPUs (2-32)" | |
207 | range 2 32 | |
208 | depends on SMP | |
209 | default "32" | |
210 | ||
211 | config NEST_LEVEL | |
212 | int "Nesting level" | |
213 | default "0" | |
214 | help | |
215 | This is set to the number of layers of UMLs that this UML will be run | |
216 | in. Normally, this is zero, meaning that it will run directly on the | |
217 | host. Setting it to one will build a UML that can run inside a UML | |
218 | that is running on the host. Generally, if you intend this UML to run | |
219 | inside another UML, set CONFIG_NEST_LEVEL to one more than the host | |
220 | UML. | |
221 | ||
1da177e4 | 222 | config HIGHMEM |
ce2d2aed PBG |
223 | bool "Highmem support (EXPERIMENTAL)" |
224 | depends on !64BIT && EXPERIMENTAL | |
225 | default n | |
226 | help | |
227 | This was used to allow UML to run with big amounts of memory. | |
228 | Currently it is unstable, so if unsure say N. | |
229 | ||
42fda663 JD |
230 | To use big amounts of memory, it is recommended enable static |
231 | linking (i.e. CONFIG_STATIC_LINK) - this should allow the | |
232 | guest to use up to 2.75G of memory. | |
1da177e4 LT |
233 | |
234 | config KERNEL_STACK_ORDER | |
235 | int "Kernel stack size order" | |
02239c29 | 236 | default 1 if 64BIT |
e80ad9b6 | 237 | range 1 10 if 64BIT |
02239c29 | 238 | default 0 if !64BIT |
1da177e4 LT |
239 | help |
240 | This option determines the size of UML kernel stacks. They will | |
241 | be 1 << order pages. The default is OK unless you're running Valgrind | |
242 | on UML, in which case, set this to 3. | |
243 | ||
244 | config UML_REAL_TIME_CLOCK | |
245 | bool "Real-time Clock" | |
246 | default y | |
247 | help | |
248 | This option makes UML time deltas match wall clock deltas. This should | |
249 | normally be enabled. The exception would be if you are debugging with | |
250 | UML and spend long times with UML stopped at a breakpoint. In this | |
251 | case, when UML is restarted, it will call the timer enough times to make | |
252 | up for the time spent at the breakpoint. This could result in a | |
44c09201 | 253 | noticeable lag. If this is a problem, then disable this option. |
1da177e4 LT |
254 | |
255 | endmenu | |
256 | ||
257 | source "init/Kconfig" | |
258 | ||
ce2d2aed | 259 | source "drivers/block/Kconfig" |
1da177e4 | 260 | |
08b178eb | 261 | source "arch/um/Kconfig.char" |
1da177e4 | 262 | |
ce2d2aed | 263 | source "drivers/base/Kconfig" |
1da177e4 | 264 | |
ce2d2aed | 265 | source "net/Kconfig" |
1da177e4 | 266 | |
08b178eb | 267 | source "arch/um/Kconfig.net" |
1da177e4 | 268 | |
d5950b43 | 269 | source "drivers/net/Kconfig" |
1da177e4 | 270 | |
76c842d8 PBG |
271 | source "drivers/connector/Kconfig" |
272 | ||
1da177e4 LT |
273 | source "fs/Kconfig" |
274 | ||
275 | source "security/Kconfig" | |
276 | ||
277 | source "crypto/Kconfig" | |
278 | ||
279 | source "lib/Kconfig" | |
280 | ||
0ff56383 | 281 | source "drivers/scsi/Kconfig" |
1da177e4 LT |
282 | |
283 | source "drivers/md/Kconfig" | |
284 | ||
285 | if BROKEN | |
286 | source "drivers/mtd/Kconfig" | |
287 | endif | |
288 | ||
289 | #This is just to shut up some Kconfig warnings, so no prompt. | |
290 | config INPUT | |
291 | bool | |
292 | default n | |
293 | ||
294 | source "arch/um/Kconfig.debug" |