tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2if TTY
3
4config HVC_DRIVER
5 bool
6 help
7 Generic "hypervisor virtual console" infrastructure for various
8 hypervisors (pSeries, iSeries, Xen).
9 It will automatically be selected if one of the back-end console drivers
10 is selected.
11
12config HVC_IRQ
13 bool
14
15config HVC_CONSOLE
16 bool "pSeries Hypervisor Virtual Console support"
17 depends on PPC_PSERIES
18 select HVC_DRIVER
19 select HVC_IRQ
20 help
21 pSeries machines when partitioned support a hypervisor virtual
22 console. This driver allows each pSeries partition to have a console
23 which is accessed via the HMC.
24
25config HVC_OLD_HVSI
26 bool "Old driver for pSeries serial port (/dev/hvsi*)"
27 depends on HVC_CONSOLE
28
29config HVC_OPAL
30 bool "OPAL Console support"
31 depends on PPC_POWERNV
32 select HVC_DRIVER
33 select HVC_IRQ
34 default y
35 help
36 PowerNV machines running under OPAL need that driver to get a console
37
38config HVC_RTAS
39 bool "IBM RTAS Console support"
40 depends on PPC_RTAS
41 select HVC_DRIVER
42 help
43 IBM Console device driver which makes use of RTAS
44
45config HVC_IUCV
46 bool "z/VM IUCV Hypervisor console support (VM only)"
47 depends on S390 && NET
48 select HVC_DRIVER
49 select IUCV
50 default y
51 help
52 This driver provides a Hypervisor console (HVC) back-end to access
53 a Linux (console) terminal via a z/VM IUCV communication path.
54
55config HVC_XEN
56 bool "Xen Hypervisor Console support"
57 depends on XEN
58 select HVC_DRIVER
59 select HVC_IRQ
60 default y
61 help
62 Xen virtual console device driver
63
64config HVC_XEN_FRONTEND
65 bool "Xen Hypervisor Multiple Consoles support"
66 depends on HVC_XEN
67 select XEN_XENBUS_FRONTEND
68 default y
69 help
70 Xen driver for secondary virtual consoles
71
72config HVC_UDBG
73 bool "udbg based fake hypervisor console"
74 depends on PPC
75 select HVC_DRIVER
76 help
77 This is meant to be used during HW bring up or debugging when
78 no other console mechanism exist but udbg, to get you a quick
79 console for userspace. Do NOT enable in production kernels.
80
81config HVC_DCC
82 bool "ARM JTAG DCC console"
83 depends on ARM || ARM64
84 select HVC_DRIVER
85 help
86 This console uses the JTAG DCC on ARM to create a console under the HVC
87 driver. This console is used through a JTAG only on ARM. If you don't have
88 a JTAG then you probably don't want this option.
89
90config HVC_RISCV_SBI
91 bool "RISC-V SBI console support"
92 depends on RISCV
93 select HVC_DRIVER
94 help
95 This enables support for console output via RISC-V SBI calls, which
96 is normally used only during boot to output printk.
97
98 If you don't know what do to here, say Y.
99
100config HVCS
101 tristate "IBM Hypervisor Virtual Console Server support"
102 depends on PPC_PSERIES && HVC_CONSOLE
103 help
104 Partitionable IBM Power5 ppc64 machines allow hosting of
105 firmware virtual consoles from one Linux partition by
106 another Linux partition. This driver allows console data
107 from Linux partitions to be accessed through TTY device
108 interfaces in the device tree of a Linux partition running
109 this driver.
110
111 To compile this driver as a module, choose M here: the
112 module will be called hvcs. Additionally, this module
113 will depend on arch specific APIs exported from hvcserver.ko
114 which will also be compiled when this driver is built as a
115 module.
116
117endif # TTY