| # 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 XTERM_CHAN_DEFAULT_EMULATOR |
| string "xterm channel default terminal emulator" |
| depends on XTERM_CHAN |
| default "xterm" |
| help |
| This option allows changing the default terminal emulator. |
| |
| 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" |
| depends on SOUND |
| select SOUND_OSS_CORE |
| help |
| This option enables UML sound support. If enabled, it will pull in |
| 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. |
| |
| endmenu |
| |
| menu "UML Network Devices" |
| depends on NET |
| |
| config UML_NET_VECTOR |
| bool "Vector I/O high performance network devices" |
| select MAY_HAVE_RUNTIME_DEPS |
| 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. |
| |
| For more information, including explanations of the networking |
| and sample configurations, see |
| <file:Documentation/virt/uml/user_mode_linux_howto_v2.rst>. |
| |
| endmenu |
| |
| config VIRTIO_UML |
| bool "UML driver for virtio devices" |
| select VIRTIO |
| help |
| This driver provides support for virtio based paravirtual device |
| drivers over vhost-user sockets. |
| |
| config UML_RTC |
| bool "UML RTC driver" |
| depends on RTC_CLASS |
| # there's no use in this if PM_SLEEP isn't enabled ... |
| depends on PM_SLEEP |
| help |
| When PM_SLEEP is configured, it may be desirable to wake up using |
| rtcwake, especially in time-travel mode. This driver enables that |
| by providing a fake RTC clock that causes a wakeup at the right |
| time. |
| |
| config UML_PCI |
| bool |
| select FORCE_PCI |
| select IRQ_MSI_LIB |
| select UML_IOMEM_EMULATION |
| select UML_DMA_EMULATION |
| select PCI_MSI |
| select PCI_LOCKLESS_CONFIG |
| |
| config UML_PCI_OVER_VIRTIO |
| bool "Enable PCI over VIRTIO device simulation" |
| # in theory, just VIRTIO is enough, but that causes recursion |
| depends on VIRTIO_UML |
| select UML_PCI |
| |
| config UML_PCI_OVER_VIRTIO_DEVICE_ID |
| int "set the virtio device ID for PCI emulation" |
| default -1 |
| depends on UML_PCI_OVER_VIRTIO |
| help |
| There's no official device ID assigned (yet), set the one you |
| wish to use for experimentation here. The default of -1 is |
| not valid and will cause the driver to fail at probe. |
| |
| config UML_PCI_OVER_VFIO |
| bool "Enable VFIO-based PCI passthrough" |
| select UML_PCI |
| help |
| This driver provides support for VFIO-based PCI passthrough. |
| Currently, only MSI-X capable devices are supported, and it |
| is assumed that drivers will use MSI-X. |
