1 # SPDX-License-Identifier: GPL-2.0
2
3 menu "UML Character Devices"
4
5 config STDERR_CONSOLE
6 bool "stderr console"
7 default y
8 help
9 console driver which dumps all print
10
11 config SSL
12 bool "Virtual serial line"
13 help
14 The User-Mode Linux environment allo
15 lines on the UML that are usually ma
16 ttys or ptys.
17
18 See <http://user-mode-linux.sourcefo
19 information and command line example
20
21 Unless you have a specific reason fo
22
23 config NULL_CHAN
24 bool "null channel support"
25 help
26 This option enables support for atta
27 lines to a device similar to /dev/nu
28 and there is never any data to be re
29
30 config PORT_CHAN
31 bool "port channel support"
32 help
33 This option enables support for atta
34 lines to host portals. They may be
35 <port number>'. Any number of conso
36 attached to a single portal, althoug
37 you telnet to that portal will be un
38 It is safe to say 'Y' here.
39
40 config PTY_CHAN
41 bool "pty channel support"
42 help
43 This option enables support for atta
44 lines to host pseudo-terminals. Acc
45 pseudo-terminals (/dev/pty*) and pts
46 with this option. The assignment of
47 will be announced in the kernel mess
48 It is safe to say 'Y' here.
49
50 config TTY_CHAN
51 bool "tty channel support"
52 help
53 This option enables support for atta
54 lines to host terminals. Access to
55 (/dev/tty*) and the slave side of ps
56 /dev/pts/*) are controlled by this o
57 It is safe to say 'Y' here.
58
59 config XTERM_CHAN
60 bool "xterm channel support"
61 help
62 This option enables support for atta
63 lines to xterms. Each UML device so
64 its own xterm.
65 It is safe to say 'Y' here.
66
67 config XTERM_CHAN_DEFAULT_EMULATOR
68 string "xterm channel default terminal
69 depends on XTERM_CHAN
70 default "xterm"
71 help
72 This option allows changing the defa
73
74 config NOCONFIG_CHAN
75 bool
76 default !(XTERM_CHAN && TTY_CHAN && PT
77
78 config CON_ZERO_CHAN
79 string "Default main console channel i
80 default "fd:0,fd:1"
81 help
82 This is the string describing the ch
83 will be attached by default. This v
84 command line. The default value is
85 main console to stdin and stdout.
86 It is safe to leave this unchanged.
87
88 config CON_CHAN
89 string "Default console channel initia
90 default "xterm"
91 help
92 This is the string describing the ch
93 except the main console will be atta
94 be overridden from the command line.
95 which brings them up in xterms.
96 It is safe to leave this unchanged,
97 this if you expect the UML that you
98 which don't have X or xterm availabl
99
100 config SSL_CHAN
101 string "Default serial line channel in
102 default "pty"
103 help
104 This is the string describing the ch
105 will be attached by default. This v
106 command line. The default value is
107 traditional pseudo-terminals.
108 It is safe to leave this unchanged,
109 this if you expect the UML that you
110 which don't have a set of /dev/pty*
111
112 config UML_SOUND
113 tristate "Sound support"
114 depends on SOUND
115 select SOUND_OSS_CORE
116 help
117 This option enables UML sound suppor
118 the UML hostaudio relay, which acts
119 between the host's dsp and mixer dev
120 It is safe to say 'Y' here.
121
122 endmenu
123
124 menu "UML Network Devices"
125 depends on NET
126
127 # UML virtual driver
128 config UML_NET
129 bool "Virtual network device"
130 help
131 While the User-Mode port cannot dire
132 hardware devices, this choice and th
133 provide one or more virtual network
134 kernels can talk to each other, the
135 machines on the outside world.
136
137 For more information, including expl
138 sample configurations, see
139 <http://user-mode-linux.sourceforge.
140
141 If you'd like to be able to enable n
142 linux environment, say Y; otherwise
143 enable at least one of the following
144 make use of UML networking.
145
146 config UML_NET_ETHERTAP
147 bool "Ethertap transport (obsolete)"
148 depends on UML_NET
149 help
150 The Ethertap User-Mode Linux network
151 running UML to exchange packets with
152 host's Ethertap devices, such as /de
153 UMLs can use additional Ethertap dev
154 While the UML believes it's on a (mu
155 Ethernet network, it's in fact commu
156 link with the host.
157
158 To use this, your host kernel must h
159 devices. Also, if your host kernel
160 CONFIG_NETLINK_DEV configured as Y o
161
162 For more information, see
163 <http://user-mode-linux.sourceforge.
164 has examples of the UML command line
165 networking.
166
167 NOTE: THIS TRANSPORT IS DEPRECATED A
168 migrate to UML_NET_VECTOR.
169
170 If unsure, say N.
171
172 config UML_NET_TUNTAP
173 bool "TUN/TAP transport (obsolete)"
174 depends on UML_NET
175 help
176 The UML TUN/TAP network transport al
177 packets with the host over a TUN/TAP
178 work with a 2.4 host, unless you've
179 your 2.2 host kernel.
180
181 To use this transport, your host ker
182 devices, either built-in or as a mod
183
184 NOTE: THIS TRANSPORT IS DEPRECATED A
185 migrate to UML_NET_VECTOR.
186
187 If unsure, say N.
188
189 config UML_NET_SLIP
190 bool "SLIP transport (obsolete)"
191 depends on UML_NET
192 help
193 The slip User-Mode Linux network tra
194 network with its host over a point-t
195 which can carry any Ethernet frame (
196 the slip transport can only carry IP
197
198 To use this, your host must support
199
200 For more information, see
201 <http://user-mode-linux.sourceforge.
202 has examples of the UML command line
203 networking, and details of a few qui
204
205 NOTE: THIS TRANSPORT IS DEPRECATED A
206 migrate to UML_NET_VECTOR.
207
208 If unsure, say N.
209
210 config UML_NET_DAEMON
211 bool "Daemon transport (obsolete)"
212 depends on UML_NET
213 help
214 This User-Mode Linux network transpo
215 UMLs on a single host to communicate
216 the host.
217
218 To use this form of networking, you'
219 networking daemon on the host.
220
221 For more information, see
222 <http://user-mode-linux.sourceforge.
223 has examples of the UML command line
224 networking.
225
226 NOTE: THIS TRANSPORT IS DEPRECATED A
227 migrate to UML_NET_VECTOR.
228
229 If unsure, say N.
230
231 config UML_NET_DAEMON_DEFAULT_SOCK
232 string "Default socket for daemon tran
233 default "/tmp/uml.ctl"
234 depends on UML_NET_DAEMON
235 help
236 This option allows setting the defau
237 transport, normally it defaults to /
238
239 config UML_NET_VECTOR
240 bool "Vector I/O high performance netw
241 depends on UML_NET
242 select MAY_HAVE_RUNTIME_DEPS
243 help
244 This User-Mode Linux network driver
245 and receive functions. The host runn
246 a linux kernel version above 3.0 and
247 This driver provides tap, raw, gre a
248 with up to 4 times higher network th
249 drivers.
250
251 config UML_NET_VDE
252 bool "VDE transport (obsolete)"
253 depends on UML_NET
254 depends on !MODVERSIONS
255 select MAY_HAVE_RUNTIME_DEPS
256 help
257 This User-Mode Linux network transpo
258 UMLs on a single host to communicate
259 with the rest of the world using Vir
260 an improved fork of uml_switch.
261
262 You must have libvdeplug installed i
263 transport into UML.
264
265 To use this form of networking, you
266 on the host.
267
268 For more information, see <http://wi
269 That site has a good overview of wha
270 of the UML command line to use to en
271
272 NOTE: THIS TRANSPORT IS DEPRECATED A
273 migrate to UML_NET_VECTOR.
274
275 If unsure, say N.
276
277 config UML_NET_MCAST
278 bool "Multicast transport (obsolete)"
279 depends on UML_NET
280 help
281 This Multicast User-Mode Linux netwo
282 UMLs (even ones running on different
283 each other over a virtual ethernet n
284 at least one UML with one of the oth
285 bridge if any of them need to be abl
286 other IP machines.
287
288 To use this, your host kernel(s) mus
289
290 For more information, see
291 <http://user-mode-linux.sourceforge.
292 has examples of the UML command line
293 networking, and notes about the secu
294
295 NOTE: THIS TRANSPORT IS DEPRECATED A
296 migrate to UML_NET_VECTOR.
297
298 If unsure, say N.
299
300 config UML_NET_SLIRP
301 bool "SLiRP transport (obsolete)"
302 depends on UML_NET
303 help
304 The SLiRP User-Mode Linux network tr
305 to network by invoking a program tha
306 packets. This is commonly (but not
307 known as SLiRP, a program that can r
308 he host on which it is run. Only IP
309 unlike other network transports that
310 frames. In general, slirp allows th
311 to the outside world that the host u
312 other transports, SLiRP works withou
313 privileges, setuid binaries, or SLIP
314 also means not every type of connect
315 situations can be accommodated with
316 commands that can be passed along as
317 setup string. The effect of this tr
318 that of a host behind a firewall tha
319 connections passing through it (but
320
321 NOTE: THIS TRANSPORT IS DEPRECATED A
322 migrate to UML_NET_VECTOR.
323
324 If unsure, say N.
325
326 Startup example: "eth0=slirp,FE:FD:0
327
328 endmenu
329
330 config VIRTIO_UML
331 bool "UML driver for virtio devices"
332 select VIRTIO
333 help
334 This driver provides support for vir
335 drivers over vhost-user sockets.
336
337 config UML_RTC
338 bool "UML RTC driver"
339 depends on RTC_CLASS
340 # there's no use in this if PM_SLEEP i
341 depends on PM_SLEEP
342 help
343 When PM_SLEEP is configured, it may
344 rtcwake, especially in time-travel m
345 by providing a fake RTC clock that c
346 time.
347
348 config UML_PCI_OVER_VIRTIO
349 bool "Enable PCI over VIRTIO device si
350 # in theory, just VIRTIO is enough, bu
351 depends on VIRTIO_UML
352 select FORCE_PCI
353 select UML_IOMEM_EMULATION
354 select UML_DMA_EMULATION
355 select PCI_MSI
356 select PCI_LOCKLESS_CONFIG
357
358 config UML_PCI_OVER_VIRTIO_DEVICE_ID
359 int "set the virtio device ID for PCI
360 default -1
361 depends on UML_PCI_OVER_VIRTIO
362 help
363 There's no official device ID assign
364 wish to use for experimentation here
365 not valid and will cause the driver
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