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# SPDX-License-Identifier: GPL-2.0-only
config VHOST_IOTLB
	tristate
	help
	  Generic IOTLB implementation for vhost and vringh.
	  This option is selected by any driver which needs to support
	  an IOMMU in software.

config VHOST_RING
	tristate
	select VHOST_IOTLB
	help
	  This option is selected by any driver which needs to access
	  the host side of a virtio ring.

config VHOST_TASK
	bool
	default n

config VHOST
	tristate
	select VHOST_IOTLB
	select VHOST_TASK
	help
	  This option is selected by any driver which needs to access
	  the core of vhost.

menuconfig VHOST_MENU
	bool "VHOST drivers"
	default y

if VHOST_MENU

config VHOST_NET
	tristate "Host kernel accelerator for virtio net"
	depends on NET && EVENTFD && (TUN || !TUN) && (TAP || !TAP)
	select VHOST
	help
	  This kernel module can be loaded in host kernel to accelerate
	  guest networking with virtio_net. Not to be confused with virtio_net
	  module itself which needs to be loaded in guest kernel.

To compile this driver as a module, choose M here: the module will
	  be called vhost_net.

config VHOST_SCSI
	tristate "VHOST_SCSI TCM fabric driver"
	depends on TARGET_CORE && EVENTFD
	select VHOST
	select SG_POOL
	default n
	help
	Say M here to enable the vhost_scsi TCM fabric module
	for use with virtio-scsi guests

config VHOST_VSOCK
	tristate "vhost virtio-vsock driver"
	depends on VSOCKETS && EVENTFD
	select VHOST
	select VIRTIO_VSOCKETS_COMMON
	default n
	help
	This kernel module can be loaded in the host kernel to provide AF_VSOCK
	sockets for communicating with guests.  The guests must have the
	virtio_transport.ko driver loaded to use the virtio-vsock device.

To compile this driver as a module, choose M here: the module will be called
	vhost_vsock.

config VHOST_VDPA
	tristate "Vhost driver for vDPA-based backend"
	depends on EVENTFD
	select VHOST
	select IRQ_BYPASS_MANAGER
	depends on VDPA
	help
	  This kernel module can be loaded in host kernel to accelerate
	  guest virtio devices with the vDPA-based backends.

To compile this driver as a module, choose M here: the module
	  will be called vhost_vdpa.

config VHOST_CROSS_ENDIAN_LEGACY
	bool "Cross-endian support for vhost"
	default n
	help
	  This option allows vhost to support guests with a different byte
	  ordering from host while using legacy virtio.

Userspace programs can control the feature using the
	  VHOST_SET_VRING_ENDIAN and VHOST_GET_VRING_ENDIAN ioctls.

This is only useful on a few platforms (ppc64 and arm64). Since it
	  adds some overhead, it is disabled by default.

If unsure, say "N".

config VHOST_ENABLE_FORK_OWNER_CONTROL
	bool "Enable VHOST_ENABLE_FORK_OWNER_CONTROL"
	default y
	help
	  This option enables two IOCTLs: VHOST_SET_FORK_FROM_OWNER and
	  VHOST_GET_FORK_FROM_OWNER. These allow userspace applications
	  to modify the vhost worker mode for vhost devices.

Also expose module parameter 'fork_from_owner_default' to allow users
	  to configure the default mode for vhost workers.

By default, `VHOST_ENABLE_FORK_OWNER_CONTROL` is set to `y`,
	  users can change the worker thread mode as needed.
	  If this config is disabled (n),the related IOCTLs and parameters will
	  be unavailable.

If unsure, say "Y".

endif

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📄 Kconfig	?	3.2 KB	2025-09-28 21:39	EDIT
📄 Makefile	?	433 B	2025-09-28 21:39	EDIT