338 lines
12 KiB
Plaintext
338 lines
12 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
menu "UML Character Devices"
|
|
|
|
config STDERR_CONSOLE
|
|
bool "stderr console"
|
|
default y
|
|
help
|
|
console driver which dumps all printk messages to stderr.
|
|
|
|
config SSL
|
|
bool "Virtual serial line"
|
|
help
|
|
The User-Mode Linux environment allows you to create virtual serial
|
|
lines on the UML that are usually made to show up on the host as
|
|
ttys or ptys.
|
|
|
|
See <http://user-mode-linux.sourceforge.net/old/input.html> for more
|
|
information and command line examples of how to use this facility.
|
|
|
|
Unless you have a specific reason for disabling this, say Y.
|
|
|
|
config NULL_CHAN
|
|
bool "null channel support"
|
|
help
|
|
This option enables support for attaching UML consoles and serial
|
|
lines to a device similar to /dev/null. Data written to it disappears
|
|
and there is never any data to be read.
|
|
|
|
config PORT_CHAN
|
|
bool "port channel support"
|
|
help
|
|
This option enables support for attaching UML consoles and serial
|
|
lines to host portals. They may be accessed with 'telnet <host>
|
|
<port number>'. Any number of consoles and serial lines may be
|
|
attached to a single portal, although what UML device you get when
|
|
you telnet to that portal will be unpredictable.
|
|
It is safe to say 'Y' here.
|
|
|
|
config PTY_CHAN
|
|
bool "pty channel support"
|
|
help
|
|
This option enables support for attaching UML consoles and serial
|
|
lines to host pseudo-terminals. Access to both traditional
|
|
pseudo-terminals (/dev/pty*) and pts pseudo-terminals are controlled
|
|
with this option. The assignment of UML devices to host devices
|
|
will be announced in the kernel message log.
|
|
It is safe to say 'Y' here.
|
|
|
|
config TTY_CHAN
|
|
bool "tty channel support"
|
|
help
|
|
This option enables support for attaching UML consoles and serial
|
|
lines to host terminals. Access to both virtual consoles
|
|
(/dev/tty*) and the slave side of pseudo-terminals (/dev/ttyp* and
|
|
/dev/pts/*) are controlled by this option.
|
|
It is safe to say 'Y' here.
|
|
|
|
config XTERM_CHAN
|
|
bool "xterm channel support"
|
|
help
|
|
This option enables support for attaching UML consoles and serial
|
|
lines to xterms. Each UML device so assigned will be brought up in
|
|
its own xterm.
|
|
It is safe to say 'Y' here.
|
|
|
|
config NOCONFIG_CHAN
|
|
bool
|
|
default !(XTERM_CHAN && TTY_CHAN && PTY_CHAN && PORT_CHAN && NULL_CHAN)
|
|
|
|
config CON_ZERO_CHAN
|
|
string "Default main console channel initialization"
|
|
default "fd:0,fd:1"
|
|
help
|
|
This is the string describing the channel to which the main console
|
|
will be attached by default. This value can be overridden from the
|
|
command line. The default value is "fd:0,fd:1", which attaches the
|
|
main console to stdin and stdout.
|
|
It is safe to leave this unchanged.
|
|
|
|
config CON_CHAN
|
|
string "Default console channel initialization"
|
|
default "xterm"
|
|
help
|
|
This is the string describing the channel to which all consoles
|
|
except the main console will be attached by default. This value can
|
|
be overridden from the command line. The default value is "xterm",
|
|
which brings them up in xterms.
|
|
It is safe to leave this unchanged, although you may wish to change
|
|
this if you expect the UML that you build to be run in environments
|
|
which don't have X or xterm available.
|
|
|
|
config SSL_CHAN
|
|
string "Default serial line channel initialization"
|
|
default "pty"
|
|
help
|
|
This is the string describing the channel to which the serial lines
|
|
will be attached by default. This value can be overridden from the
|
|
command line. The default value is "pty", which attaches them to
|
|
traditional pseudo-terminals.
|
|
It is safe to leave this unchanged, although you may wish to change
|
|
this if you expect the UML that you build to be run in environments
|
|
which don't have a set of /dev/pty* devices.
|
|
|
|
config UML_SOUND
|
|
tristate "Sound support"
|
|
help
|
|
This option enables UML sound support. If enabled, it will pull in
|
|
soundcore and the UML hostaudio relay, which acts as a intermediary
|
|
between the host's dsp and mixer devices and the UML sound system.
|
|
It is safe to say 'Y' here.
|
|
|
|
config SOUND
|
|
tristate
|
|
default UML_SOUND
|
|
|
|
config SOUND_OSS_CORE
|
|
bool
|
|
default UML_SOUND
|
|
|
|
config HOSTAUDIO
|
|
tristate
|
|
default UML_SOUND
|
|
|
|
endmenu
|
|
|
|
menu "UML Network Devices"
|
|
depends on NET
|
|
|
|
# UML virtual driver
|
|
config UML_NET
|
|
bool "Virtual network device"
|
|
help
|
|
While the User-Mode port cannot directly talk to any physical
|
|
hardware devices, this choice and the following transport options
|
|
provide one or more virtual network devices through which the UML
|
|
kernels can talk to each other, the host, and with the host's help,
|
|
machines on the outside world.
|
|
|
|
For more information, including explanations of the networking and
|
|
sample configurations, see
|
|
<http://user-mode-linux.sourceforge.net/old/networking.html>.
|
|
|
|
If you'd like to be able to enable networking in the User-Mode
|
|
linux environment, say Y; otherwise say N. Note that you must
|
|
enable at least one of the following transport options to actually
|
|
make use of UML networking.
|
|
|
|
config UML_NET_ETHERTAP
|
|
bool "Ethertap transport"
|
|
depends on UML_NET
|
|
help
|
|
The Ethertap User-Mode Linux network transport allows a single
|
|
running UML to exchange packets with its host over one of the
|
|
host's Ethertap devices, such as /dev/tap0. Additional running
|
|
UMLs can use additional Ethertap devices, one per running UML.
|
|
While the UML believes it's on a (multi-device, broadcast) virtual
|
|
Ethernet network, it's in fact communicating over a point-to-point
|
|
link with the host.
|
|
|
|
To use this, your host kernel must have support for Ethertap
|
|
devices. Also, if your host kernel is 2.4.x, it must have
|
|
CONFIG_NETLINK_DEV configured as Y or M.
|
|
|
|
For more information, see
|
|
<http://user-mode-linux.sourceforge.net/old/networking.html> That site
|
|
has examples of the UML command line to use to enable Ethertap
|
|
networking.
|
|
|
|
If you'd like to set up an IP network with the host and/or the
|
|
outside world, say Y to this, the Daemon Transport and/or the
|
|
Slip Transport. You'll need at least one of them, but may choose
|
|
more than one without conflict. If you don't need UML networking,
|
|
say N.
|
|
|
|
config UML_NET_TUNTAP
|
|
bool "TUN/TAP transport"
|
|
depends on UML_NET
|
|
help
|
|
The UML TUN/TAP network transport allows a UML instance to exchange
|
|
packets with the host over a TUN/TAP device. This option will only
|
|
work with a 2.4 host, unless you've applied the TUN/TAP patch to
|
|
your 2.2 host kernel.
|
|
|
|
To use this transport, your host kernel must have support for TUN/TAP
|
|
devices, either built-in or as a module.
|
|
|
|
config UML_NET_SLIP
|
|
bool "SLIP transport"
|
|
depends on UML_NET
|
|
help
|
|
The slip User-Mode Linux network transport allows a running UML to
|
|
network with its host over a point-to-point link. Unlike Ethertap,
|
|
which can carry any Ethernet frame (and hence even non-IP packets),
|
|
the slip transport can only carry IP packets.
|
|
|
|
To use this, your host must support slip devices.
|
|
|
|
For more information, see
|
|
<http://user-mode-linux.sourceforge.net/old/networking.html>.
|
|
has examples of the UML command line to use to enable slip
|
|
networking, and details of a few quirks with it.
|
|
|
|
The Ethertap Transport is preferred over slip because of its
|
|
limitations. If you prefer slip, however, say Y here. Otherwise
|
|
choose the Multicast transport (to network multiple UMLs on
|
|
multiple hosts), Ethertap (to network with the host and the
|
|
outside world), and/or the Daemon transport (to network multiple
|
|
UMLs on a single host). You may choose more than one without
|
|
conflict. If you don't need UML networking, say N.
|
|
|
|
config UML_NET_DAEMON
|
|
bool "Daemon transport"
|
|
depends on UML_NET
|
|
help
|
|
This User-Mode Linux network transport allows one or more running
|
|
UMLs on a single host to communicate with each other, but not to
|
|
the host.
|
|
|
|
To use this form of networking, you'll need to run the UML
|
|
networking daemon on the host.
|
|
|
|
For more information, see
|
|
<http://user-mode-linux.sourceforge.net/old/networking.html> That site
|
|
has examples of the UML command line to use to enable Daemon
|
|
networking.
|
|
|
|
If you'd like to set up a network with other UMLs on a single host,
|
|
say Y. If you need a network between UMLs on multiple physical
|
|
hosts, choose the Multicast Transport. To set up a network with
|
|
the host and/or other IP machines, say Y to the Ethertap or Slip
|
|
transports. You'll need at least one of them, but may choose
|
|
more than one without conflict. If you don't need UML networking,
|
|
say N.
|
|
|
|
config UML_NET_VECTOR
|
|
bool "Vector I/O high performance network devices"
|
|
depends on UML_NET
|
|
help
|
|
This User-Mode Linux network driver uses multi-message send
|
|
and receive functions. The host running the UML guest must have
|
|
a linux kernel version above 3.0 and a libc version > 2.13.
|
|
This driver provides tap, raw, gre and l2tpv3 network transports
|
|
with up to 4 times higher network throughput than the UML network
|
|
drivers.
|
|
|
|
config UML_NET_VDE
|
|
bool "VDE transport"
|
|
depends on UML_NET
|
|
help
|
|
This User-Mode Linux network transport allows one or more running
|
|
UMLs on a single host to communicate with each other and also
|
|
with the rest of the world using Virtual Distributed Ethernet,
|
|
an improved fork of uml_switch.
|
|
|
|
You must have libvdeplug installed in order to build the vde
|
|
transport into UML.
|
|
|
|
To use this form of networking, you will need to run vde_switch
|
|
on the host.
|
|
|
|
For more information, see <http://wiki.virtualsquare.org/>
|
|
That site has a good overview of what VDE is and also examples
|
|
of the UML command line to use to enable VDE networking.
|
|
|
|
If you need UML networking with VDE,
|
|
say Y.
|
|
|
|
config UML_NET_MCAST
|
|
bool "Multicast transport"
|
|
depends on UML_NET
|
|
help
|
|
This Multicast User-Mode Linux network transport allows multiple
|
|
UMLs (even ones running on different host machines!) to talk to
|
|
each other over a virtual ethernet network. However, it requires
|
|
at least one UML with one of the other transports to act as a
|
|
bridge if any of them need to be able to talk to their hosts or any
|
|
other IP machines.
|
|
|
|
To use this, your host kernel(s) must support IP Multicasting.
|
|
|
|
For more information, see
|
|
<http://user-mode-linux.sourceforge.net/old/networking.html> That site
|
|
has examples of the UML command line to use to enable Multicast
|
|
networking, and notes about the security of this approach.
|
|
|
|
If you need UMLs on multiple physical hosts to communicate as if
|
|
they shared an Ethernet network, say Y. If you need to communicate
|
|
with other IP machines, make sure you select one of the other
|
|
transports (possibly in addition to Multicast; they're not
|
|
exclusive). If you don't need to network UMLs say N to each of
|
|
the transports.
|
|
|
|
config UML_NET_PCAP
|
|
bool "pcap transport"
|
|
depends on UML_NET
|
|
help
|
|
The pcap transport makes a pcap packet stream on the host look
|
|
like an ethernet device inside UML. This is useful for making
|
|
UML act as a network monitor for the host. You must have libcap
|
|
installed in order to build the pcap transport into UML.
|
|
|
|
For more information, see
|
|
<http://user-mode-linux.sourceforge.net/old/networking.html> That site
|
|
has examples of the UML command line to use to enable this option.
|
|
|
|
If you intend to use UML as a network monitor for the host, say
|
|
Y here. Otherwise, say N.
|
|
|
|
config UML_NET_SLIRP
|
|
bool "SLiRP transport"
|
|
depends on UML_NET
|
|
help
|
|
The SLiRP User-Mode Linux network transport allows a running UML
|
|
to network by invoking a program that can handle SLIP encapsulated
|
|
packets. This is commonly (but not limited to) the application
|
|
known as SLiRP, a program that can re-socket IP packets back onto
|
|
he host on which it is run. Only IP packets are supported,
|
|
unlike other network transports that can handle all Ethernet
|
|
frames. In general, slirp allows the UML the same IP connectivity
|
|
to the outside world that the host user is permitted, and unlike
|
|
other transports, SLiRP works without the need of root level
|
|
privleges, setuid binaries, or SLIP devices on the host. This
|
|
also means not every type of connection is possible, but most
|
|
situations can be accommodated with carefully crafted slirp
|
|
commands that can be passed along as part of the network device's
|
|
setup string. The effect of this transport on the UML is similar
|
|
that of a host behind a firewall that masquerades all network
|
|
connections passing through it (but is less secure).
|
|
|
|
To use this you should first have slirp compiled somewhere
|
|
accessible on the host, and have read its documentation. If you
|
|
don't need UML networking, say N.
|
|
|
|
Startup example: "eth0=slirp,FE:FD:01:02:03:04,/usr/local/bin/slirp"
|
|
|
|
endmenu
|