# SPDX-License-Identifier: GPL-2.0+ # # Copyright (C) 2018, Tuomas Tynkkynen # Copyright (C) 2018, Bin Meng # # VirtIO is a virtualization standard for network and disk device drivers # where just the guest's device driver "knows" it is running in a virtual # environment, and cooperates with the hypervisor. This enables guests to # get high performance network and disk operations, and gives most of the # performance benefits of paravirtualization. In the U-Boot case, the guest # is U-Boot itself, while the virtual environment are normally QEMU targets # like ARM, RISC-V and x86. # # See http://docs.oasis-open.org/virtio/virtio/v1.0/virtio-v1.0.pdf for # the VirtIO specification v1.0. menu "VirtIO Drivers" config VIRTIO bool help This option is selected by any driver which implements the virtio transport, such as CONFIG_VIRTIO_MMIO or CONFIG_VIRTIO_PCI. config VIRTIO_MMIO bool "Platform bus driver for memory mapped virtio devices" select VIRTIO help This driver provides support for memory mapped virtio platform device driver. config VIRTIO_PCI bool "PCI driver for virtio devices" depends on DM_PCI select VIRTIO help This driver provides support for virtio based paravirtual device drivers over PCI. config VIRTIO_SANDBOX bool "Sandbox driver for virtio devices" depends on SANDBOX select VIRTIO help This driver provides support for Sandbox implementation of virtio transport driver which is used for testing purpose only. config VIRTIO_NET bool "virtio net driver" depends on VIRTIO help This is the virtual net driver for virtio. It can be used with QEMU based targets. config VIRTIO_BLK bool "virtio block driver" depends on VIRTIO help This is the virtual block driver for virtio. It can be used with QEMU based targets. config VIRTIO_RNG bool "virtio rng driver" depends on DM_RNG depends on VIRTIO default y help This is the virtual random number generator driver. It can be used with QEMU based targets. endmenu