kernel config
CONFIG_NET_9P_VIRTIO=m
CONFIG_VIRTIO_BLK=m
CONFIG_VIRTIO_NET=m
CONFIG_VIRTIO_CONSOLE=y
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_VIRTIO=y
CONFIG_VIRTIO_RING=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_BALLOON=m
Virtualization --->
Host kernel accelerator for virtio net (EXPERIMENTAL)
<*> PCI driver for virtio devices (EXPERIMENTAL)
Virtio balloon driver (EXPERIMENTAL)
Networking Support ---> Plan 9 Resource Sharing Support (9P2000) --->
9P Virtio Transport
Device Drivers ---> [*] Block devices --->
Virtio block driver (EXPERIMENTAL)
Device Drivers ---> [*] Network device support --->
Virtio network driver (EXPERIMENTAL)
Device Drivers ---> Character devices --->
<*> Virtio console
VirtIO Random Number Generator support