Intel G870 BX80623G870 User Manual

Datasheet, Volume 1

35

This chapter provides a high-level description of Intel technologies implemented in the 
processor.

The implementation of the features may vary between the processor SKUs.

Details on the different technologies of Intel processors and other relevant external 
notes are located at the Intel technology web site: 

http://www.intel.com/technology/

Intel Virtualization Technology (Intel

®

 VT) makes a single system appear as multiple 

independent systems to software. This allows multiple, independent operating systems 
to run simultaneously on a single system. Intel VT comprises technology components 
to support virtualization of platforms based on Intel architecture microprocessors and 
chipsets. Intel Virtualization Technology (Intel VT-x) added hardware support in the 
processor to improve the virtualization performance and robustness. Intel Virtualization 
Technology for Directed I/O (Intel VT-d) adds chipset hardware implementation to 
support and improve I/O virtualization performance and robustness.

Intel VT-x specifications and functional descriptions are included in the Intel

®

IA-32 Architectures Software Developer’s Manual, Volume 3B and is available at: 

http://www.intel.com/products/processor/manuals/index.htm

The Intel VT-d specification and other VT documents can be referenced at:

http://www.intel.com/technology/virtualization/index.htm

Intel VT-x provides hardware acceleration for virtualization of IA platforms. Virtual 
Machine Monitor (VMM) can use Intel VT-x features to provide improved a reliable 
virtualized platform. By using Intel VT-x, a VMM is: 

• Robust: VMMs no longer need to use paravirtualization or binary translation. This 

means that they will be able to run off-the-shelf OSs and applications without any 
special steps.

• Enhanced: Intel VT enables VMMs to run 64-bit guest operating systems on IA x86 

processors.

• More reliable: Due to the hardware support, VMMs can now be smaller, less 

complex, and more efficient. This improves reliability and availability and reduces 
the potential for software conflicts.

• More secure: The use of hardware transitions in the VMM strengthens the isolation 

of VMs and further prevents corruption of one VM from affecting others on the 
same system.