Intel® Virtualization Technology for Directed I/O

Intel® Virtualization Technology for Directed I/O (Intel® VT-d) allows addresses in incoming I/O device memory transactions to be remapped to different host addresses. This provides Virtual Machine Monitor (VMM) software with:

Improved reliability and security through device isolation using hardware assisted remapping.
Improved I/O performance and availability by direct assignment of devices.

For information about	Refer to
Intel® Virtualization Technology for Directed I/O	https://software.intel.com/en-us/node/139035?wapkw=vt directed io

Power Management

Intel® Virtualization Technology Power Management