Virtual Socket protocol

modulename: vsock.ko

configname: CONFIG_VSOCKETS

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Virtual Socket protocol
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Virtual Socket Protocol is a socket protocol similar to TCP/IP
allowing communication between Virtual Machines and hypervisor
or host.

You should also select one or more hypervisor-specific transports
below.

To compile this driver as a module, choose M here: the module
will be called vsock. If unsure, say N.

source code:
depends
CONFIG_NET

is selected by
CONFIG_VSOCKETS_LOOPBACK