drivers/vhost/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 config VHOST_IOTLB
   3         tristate
   4         help
   5           Generic IOTLB implementation for vhost and vringh.
   6           This option is selected by any driver which needs to support
   7           an IOMMU in software.
   8
   9 config VHOST_RING
  10         tristate
  11         select VHOST_IOTLB
  12         help
  13           This option is selected by any driver which needs to access
  14           the host side of a virtio ring.
  15
  16 config VHOST
  17         tristate
  18         select VHOST_IOTLB
  19         help
  20           This option is selected by any driver which needs to access
  21           the core of vhost.
  22
  23 menuconfig VHOST_MENU
  24         bool "VHOST drivers"
  25         default y
  26
  27 if VHOST_MENU
  28
  29 config VHOST_NET
  30         tristate "Host kernel accelerator for virtio net"
  31         depends on NET && EVENTFD && (TUN || !TUN) && (TAP || !TAP)
  32         select VHOST
  33         ---help---
  34           This kernel module can be loaded in host kernel to accelerate
  35           guest networking with virtio_net. Not to be confused with virtio_net
  36           module itself which needs to be loaded in guest kernel.
  37
  38           To compile this driver as a module, choose M here: the module will
  39           be called vhost_net.
  40
  41 config VHOST_SCSI
  42         tristate "VHOST_SCSI TCM fabric driver"
  43         depends on TARGET_CORE && EVENTFD
  44         select VHOST
  45         default n
  46         ---help---
  47         Say M here to enable the vhost_scsi TCM fabric module
  48         for use with virtio-scsi guests
  49
  50 config VHOST_VSOCK
  51         tristate "vhost virtio-vsock driver"
  52         depends on VSOCKETS && EVENTFD
  53         select VHOST
  54         select VIRTIO_VSOCKETS_COMMON
  55         default n
  56         ---help---
  57         This kernel module can be loaded in the host kernel to provide AF_VSOCK
  58         sockets for communicating with guests.  The guests must have the
  59         virtio_transport.ko driver loaded to use the virtio-vsock device.
  60
  61         To compile this driver as a module, choose M here: the module will be called
  62         vhost_vsock.
  63
  64 config VHOST_VDPA
  65         tristate "Vhost driver for vDPA-based backend"
  66         depends on EVENTFD
  67         select VHOST
  68         depends on VDPA
  69         help
  70           This kernel module can be loaded in host kernel to accelerate
  71           guest virtio devices with the vDPA-based backends.
  72
  73           To compile this driver as a module, choose M here: the module
  74           will be called vhost_vdpa.
  75
  76 config VHOST_CROSS_ENDIAN_LEGACY
  77         bool "Cross-endian support for vhost"
  78         default n
  79         ---help---
  80           This option allows vhost to support guests with a different byte
  81           ordering from host while using legacy virtio.
  82
  83           Userspace programs can control the feature using the
  84           VHOST_SET_VRING_ENDIAN and VHOST_GET_VRING_ENDIAN ioctls.
  85
  86           This is only useful on a few platforms (ppc64 and arm64). Since it
  87           adds some overhead, it is disabled by default.
  88
  89           If unsure, say "N".
  90
  91 endif