Intel BX80623I72600K Datasheet download pdf (Page 35)

Datasheet, Volume 1 35

Technologies

3 Technologies

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/

3.1 Intel

Virtualization 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

64 and

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

3.1.1 Intel

VT-x Objectives

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.

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Intel BX80623I72600K Datasheet Page 35