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20c384f1ea
Currently, CONFIG_VHOST depends on CONFIG_VIRTUALIZATION. But vhost is not necessarily for VM since it's a generic userspace and kernel communication protocol. Such dependency may prevent archs without virtualization support from using vhost. To solve this, a dedicated vhost menu is created under drivers so CONIFG_VHOST can be decoupled out of CONFIG_VIRTUALIZATION. While at it, also squash Kconfig.vringh into vhost Kconfig file. This avoids the trick of conditional inclusion from VOP or CAIF. Then it will be easier to introduce new vringh users and common dependency for both vringh and vhost. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20200326140125.19794-2-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
70 lines
1.9 KiB
Text
70 lines
1.9 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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config VHOST_RING
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tristate
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help
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This option is selected by any driver which needs to access
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the host side of a virtio ring.
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config VHOST
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tristate
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select VHOST_IOTLB
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help
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This option is selected by any driver which needs to access
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the core of vhost.
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menuconfig VHOST_MENU
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bool "VHOST drivers"
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default y
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if VHOST_MENU
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config VHOST_NET
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tristate "Host kernel accelerator for virtio net"
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depends on NET && EVENTFD && (TUN || !TUN) && (TAP || !TAP)
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select VHOST
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---help---
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This kernel module can be loaded in host kernel to accelerate
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guest networking with virtio_net. Not to be confused with virtio_net
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module itself which needs to be loaded in guest kernel.
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To compile this driver as a module, choose M here: the module will
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be called vhost_net.
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config VHOST_SCSI
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tristate "VHOST_SCSI TCM fabric driver"
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depends on TARGET_CORE && EVENTFD
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select VHOST
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default n
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---help---
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Say M here to enable the vhost_scsi TCM fabric module
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for use with virtio-scsi guests
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config VHOST_VSOCK
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tristate "vhost virtio-vsock driver"
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depends on VSOCKETS && EVENTFD
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select VHOST
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select VIRTIO_VSOCKETS_COMMON
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default n
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---help---
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This kernel module can be loaded in the host kernel to provide AF_VSOCK
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sockets for communicating with guests. The guests must have the
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virtio_transport.ko driver loaded to use the virtio-vsock device.
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To compile this driver as a module, choose M here: the module will be called
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vhost_vsock.
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config VHOST_CROSS_ENDIAN_LEGACY
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bool "Cross-endian support for vhost"
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default n
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---help---
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This option allows vhost to support guests with a different byte
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ordering from host while using legacy virtio.
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Userspace programs can control the feature using the
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VHOST_SET_VRING_ENDIAN and VHOST_GET_VRING_ENDIAN ioctls.
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This is only useful on a few platforms (ppc64 and arm64). Since it
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adds some overhead, it is disabled by default.
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If unsure, say "N".
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endif
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