xref: /linux/drivers/vhost/Kconfig (revision 0bbe30668d89ec8a309f28ced6d092c90fb23e8c)
1# SPDX-License-Identifier: GPL-2.0-only
2config VHOST_IOTLB
3	tristate
4	help
5	  Generic IOTLB implementation for vhost and vringh.
6
7config VHOST_RING
8	tristate
9	help
10	  This option is selected by any driver which needs to access
11	  the host side of a virtio ring.
12
13config VHOST
14	tristate
15	select VHOST_IOTLB
16	help
17	  This option is selected by any driver which needs to access
18	  the core of vhost.
19
20menuconfig VHOST_MENU
21	bool "VHOST drivers"
22	default y
23
24if VHOST_MENU
25
26config VHOST_NET
27	tristate "Host kernel accelerator for virtio net"
28	depends on NET && EVENTFD && (TUN || !TUN) && (TAP || !TAP)
29	select VHOST
30	---help---
31	  This kernel module can be loaded in host kernel to accelerate
32	  guest networking with virtio_net. Not to be confused with virtio_net
33	  module itself which needs to be loaded in guest kernel.
34
35	  To compile this driver as a module, choose M here: the module will
36	  be called vhost_net.
37
38config VHOST_SCSI
39	tristate "VHOST_SCSI TCM fabric driver"
40	depends on TARGET_CORE && EVENTFD
41	select VHOST
42	default n
43	---help---
44	Say M here to enable the vhost_scsi TCM fabric module
45	for use with virtio-scsi guests
46
47config VHOST_VSOCK
48	tristate "vhost virtio-vsock driver"
49	depends on VSOCKETS && EVENTFD
50	select VHOST
51	select VIRTIO_VSOCKETS_COMMON
52	default n
53	---help---
54	This kernel module can be loaded in the host kernel to provide AF_VSOCK
55	sockets for communicating with guests.  The guests must have the
56	virtio_transport.ko driver loaded to use the virtio-vsock device.
57
58	To compile this driver as a module, choose M here: the module will be called
59	vhost_vsock.
60
61config VHOST_CROSS_ENDIAN_LEGACY
62	bool "Cross-endian support for vhost"
63	default n
64	---help---
65	  This option allows vhost to support guests with a different byte
66	  ordering from host while using legacy virtio.
67
68	  Userspace programs can control the feature using the
69	  VHOST_SET_VRING_ENDIAN and VHOST_GET_VRING_ENDIAN ioctls.
70
71	  This is only useful on a few platforms (ppc64 and arm64). Since it
72	  adds some overhead, it is disabled by default.
73
74	  If unsure, say "N".
75
76endif
77