xref: /openbmc/linux/drivers/vhost/Kconfig (revision 20c384f1)
1# SPDX-License-Identifier: GPL-2.0-only
2config VHOST_RING
3	tristate
4	help
5	  This option is selected by any driver which needs to access
6	  the host side of a virtio ring.
7
8config VHOST
9	tristate
10	select VHOST_IOTLB
11	help
12	  This option is selected by any driver which needs to access
13	  the core of vhost.
14
15menuconfig VHOST_MENU
16	bool "VHOST drivers"
17	default y
18
19if VHOST_MENU
20
21config VHOST_NET
22	tristate "Host kernel accelerator for virtio net"
23	depends on NET && EVENTFD && (TUN || !TUN) && (TAP || !TAP)
24	select VHOST
25	---help---
26	  This kernel module can be loaded in host kernel to accelerate
27	  guest networking with virtio_net. Not to be confused with virtio_net
28	  module itself which needs to be loaded in guest kernel.
29
30	  To compile this driver as a module, choose M here: the module will
31	  be called vhost_net.
32
33config VHOST_SCSI
34	tristate "VHOST_SCSI TCM fabric driver"
35	depends on TARGET_CORE && EVENTFD
36	select VHOST
37	default n
38	---help---
39	Say M here to enable the vhost_scsi TCM fabric module
40	for use with virtio-scsi guests
41
42config VHOST_VSOCK
43	tristate "vhost virtio-vsock driver"
44	depends on VSOCKETS && EVENTFD
45	select VHOST
46	select VIRTIO_VSOCKETS_COMMON
47	default n
48	---help---
49	This kernel module can be loaded in the host kernel to provide AF_VSOCK
50	sockets for communicating with guests.  The guests must have the
51	virtio_transport.ko driver loaded to use the virtio-vsock device.
52
53	To compile this driver as a module, choose M here: the module will be called
54	vhost_vsock.
55
56config VHOST_CROSS_ENDIAN_LEGACY
57	bool "Cross-endian support for vhost"
58	default n
59	---help---
60	  This option allows vhost to support guests with a different byte
61	  ordering from host while using legacy virtio.
62
63	  Userspace programs can control the feature using the
64	  VHOST_SET_VRING_ENDIAN and VHOST_GET_VRING_ENDIAN ioctls.
65
66	  This is only useful on a few platforms (ppc64 and arm64). Since it
67	  adds some overhead, it is disabled by default.
68
69	  If unsure, say "N".
70endif
71