https://community.intel.com/t5/Software-Archive/VT-x-and-VT-d-Dependency/m-p/891871#M10256 VT-x is a processor feature and VT-d is a chipset feature. They are independent.<BR /><BR />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.<BR /><BR />-d<BR /><BR /><BR /><BR /> Mon, 02 Mar 2009 18:33:33 GMT David_O_Intel1 2009-03-02T18:33:33Z https://community.intel.com/t5/Software-Archive/VT-x-and-VT-d-Dependency/m-p/891870#M10255 Can any one let me know How much is VT-d isolated from VT-x ? and In What Way?<BR />Thanks Fri, 27 Feb 2009 23:14:33 GMT https://community.intel.com/t5/Software-Archive/VT-x-and-VT-d-Dependency/m-p/891870#M10255 bodke 2009-02-27T23:14:33Z https://community.intel.com/t5/Software-Archive/VT-x-and-VT-d-Dependency/m-p/891871#M10256 VT-x is a processor feature and VT-d is a chipset feature. They are independent.<BR /><BR />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.<BR /><BR />-d<BR /><BR /><BR /><BR /> Mon, 02 Mar 2009 18:33:33 GMT https://community.intel.com/t5/Software-Archive/VT-x-and-VT-d-Dependency/m-p/891871#M10256 David_O_Intel1 2009-03-02T18:33:33Z https://community.intel.com/t5/Software-Archive/VT-x-and-VT-d-Dependency/m-p/891872#M10257 <DIV style="margin:0px;">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.<BR /><BR /><A href="http://www.intel.com/technology/itj/2006/v10i3">http://www.intel.com/technology/itj/2006/v10i3</A><BR /><BR /><BR /></DIV> Mon, 02 Mar 2009 18:39:09 GMT https://community.intel.com/t5/Software-Archive/VT-x-and-VT-d-Dependency/m-p/891872#M10257 David_O_Intel1 2009-03-02T18:39:09Z