Virtio network driver

modulename: virtio_net.ko

configname: CONFIG_VIRTIO_NET

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Virtio network driver
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
This is the virtual network driver for virtio. It can be used with
lguest or QEMU based VMMs (like KVM or Xen). Say Y or M.

source code: