drivers/tty/hvc/Kconfig

Source file repositories/reference/linux-study-clean/drivers/tty/hvc/Kconfig

File Facts

System: Linux kernel
Corpus path: drivers/tty/hvc/Kconfig
Extension: [no extension]
Size: 4345 bytes
Lines: 137
Domain: Driver Families
Bucket: drivers/tty
Inferred role: Driver Families: build/configuration rule
Status: atlas-only

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0

config HVC_DRIVER
	bool
	help
	  Generic "hypervisor virtual console" infrastructure for various
	  hypervisors (pSeries, iSeries, Xen).
	  It will automatically be selected if one of the back-end console drivers
	  is selected.

config HVC_IRQ
	bool

config HVC_CONSOLE
	bool "pSeries Hypervisor Virtual Console support"
	depends on PPC_PSERIES
	select HVC_DRIVER
	select HVC_IRQ
	help
	  pSeries machines when partitioned support a hypervisor virtual
	  console. This driver allows each pSeries partition to have a console
	  which is accessed via the HMC.

config HVC_OLD_HVSI
	bool "Old driver for pSeries serial port (/dev/hvsi*)"
	depends on HVC_CONSOLE

config HVC_OPAL
	bool "OPAL Console support"
	depends on PPC_POWERNV
	select HVC_DRIVER
	select HVC_IRQ
	default y
	help
	  PowerNV machines running under OPAL need that driver to get a console

config HVC_RTAS
	bool "IBM RTAS Console support"
	depends on PPC_RTAS
	select HVC_DRIVER
	help
	  IBM Console device driver which makes use of RTAS

config HVC_IUCV
	bool "z/VM IUCV Hypervisor console support (VM only)"
	depends on S390 && NET
	select HVC_DRIVER
	select IUCV
	default y
	help
	  This driver provides a Hypervisor console (HVC) back-end to access
	  a Linux (console) terminal via a z/VM IUCV communication path.

config HVC_XEN
	bool "Xen Hypervisor Console support"
	depends on XEN
	select HVC_DRIVER
	select HVC_IRQ
	default y
	help
	  Xen virtual console device driver

config HVC_XEN_FRONTEND
	bool "Xen Hypervisor Multiple Consoles support"
	depends on HVC_XEN
	select XEN_XENBUS_FRONTEND
	default y
	help
	  Xen driver for secondary virtual consoles

Annotation

Atlas domain: Driver Families / drivers/tty.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.