IVC (Inter-VM Communication) protocol is part of the IPC
(Inter Processor Communication) framework on Tegra. It maintains the
data and the different communication channels in SysRAM or RAM and
keeps the content is synchronization between host CPU and remote
processors.

BPMP (Boot and Power Management Processor) is designed to off-loading
the PM functions which include clock/DVFS/thermal/power from the CPU.
It needs HSP as the HW synchronization and notification module and
IVC module as the message communication protocol.

This driver manages the IPC interface between host CPU and the
firmware running on BPMP.