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         select IRQ_BYPASS_MANAGER
  69         depends on VDPA
  70         help
  71           This kernel module can be loaded in host kernel to accelerate
  72           guest virtio devices with the vDPA-based backends.
  73
  74           To compile this driver as a module, choose M here: the module
  75           will be called vhost_vdpa.
  76
  77 config VHOST_CROSS_ENDIAN_LEGACY
  78         bool "Cross-endian support for vhost"
  79         default n
  80         help
  81           This option allows vhost to support guests with a different byte
  82           ordering from host while using legacy virtio.
  83
  84           Userspace programs can control the feature using the
  85           VHOST_SET_VRING_ENDIAN and VHOST_GET_VRING_ENDIAN ioctls.
  86
  87           This is only useful on a few platforms (ppc64 and arm64). Since it
  88           adds some overhead, it is disabled by default.
  89
  90           If unsure, say "N".
  91
  92 endif