I've received a fair number of questions on the Intel Virtualization and Software Development Forum about VT-d -- enough to justify a few words on this note in the blogging sphere.

"VT-d" stands for "Intel Virtualization Technology for Directed I/O". The relationship between VT and VT-d is that the former is an "umbrella" term referring to all Intel virtualization technologies and the latter is a particular solution within a suite of solutions under this umbrella.