VT-x and VT-d Dependency

VT-x and VT-d Dependency

Can any one let me know How much is VT-d isolated from VT-x ? and In What Way?
Thanks

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VT-x is a processor feature and VT-d is a chipset feature. They are independent.

Then again, you usually use VT-d to avoid VM exits that are caused by VT-x. So this and other usage scenarios connect them in practice.

-d

Forgot to add that a nice place to look for technical info on VT-x and VT-d is an older issue of the Intel Technology Journal. It showcases Intel Virtualization with a number of articles.

http://www.intel.com/technology/itj/2006/v10i3

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