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_SBI 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 118