CONFIG_RPMSG_VIRTIO (not configurable)

modulename: virtio_rpmsg_bus.ko

configname: CONFIG_RPMSG_VIRTIO

Linux Kernel Configuration
└─>Device Drivers
└─>Rpmsg drivers
└─>RPMSG_VIRTIO
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code: