topic Re: Stupid VT-d Question in Software Archive

Stupid VT-d Question

hypervista — Wed, 19 Sep 2007 02:08:18 GMT

I'm interested in implementing Direct Assignment and have been reading with great interest about the VT-d technology for I/O virtualization.

My question is, if I have a VT-x capable processor do I also have a VT-d capable processor? Is VT-d a component of the processor, or a component of the Northbridge chipset? How do I determine, or discover support for VT-d?

Thanks in advance for your time in answering my question.

Re: Stupid VT-d Question

Steven_T_Intel — Mon, 24 Sep 2007 21:52:02 GMT

Hypervista,
Your processor is VT-x capable. It is your platform which would be VT-d capable, as the chipset enables VT-d. This chipset will be available very soon, so I do not think your platform is VT-d capable (unless you got an early version from Intel ). I hope this answers your question.
Stev

Re: Stupid VT-d Question

hypervista — Mon, 08 Oct 2007 18:30:39 GMT

Thank you Stev! Yes, your response did answer my question.

Re: Stupid VT-d Question

andykkt — Wed, 21 Nov 2007 09:20:20 GMT

hmm...I got a another stupid question...what I understand isthat there is no VT-d capable chipset out there yet, then if I make a VMM (hypervisor) on those VT-x capable system, Do I still need to support virtual device and manage each VM's status to guest-VM to work? I just finished VMX operation to work(just VMX-On, Off, VM enter, and exit).. but have no idea what to do to make guest-VM to work... could you give me a hint to create new guest-VM on hosted-VM? where do I have to start? or look up? (ifit's possible, could you give me simple examplecode of start new VM?)