What is the difference between virtualization technology VT-x, VT-d- Vt-i and so on?

[idata]

This is the only one question that i want that somebody explain the difference between Vt-x, VT-d, Vt-i and others.

[DSilv11]

Thats is about a 2 day class lecture.

Here are the basics http://en.wikipedia.org/wiki/Vt-x# Intel_Virtualization_Technology_for_x86_.28Intel_VT-x.29 http://en.wikipedia.org/wiki/Vt-x# Intel_Virtualization_Technology_for_x86_.28Intel_VT-x.29

Each subset refers to hardware features that assist in creating a VM mostly around speed since by their very nature, VM slow things down when it comes to passing information back and forth thru the hardware,

[Edward_Z_Intel]

Very short version:

VT-x: for x86 processor

VT-i: for Itanium processor

VT-d: for devices DMA access

[8legged]

"VT-d: for devices DMA access"

VT-d: for Direct Memory Access (DMA)