Intel BX80633I74820K, BX80633I74930K 3

Technologies

22 Datasheet

3Technologies

This chapter covers the following technologies:

• Intel® Virtualization Technology (Intel® VT)

• Security Technologies

• Intel® Hyper-Threading Technology (Intel® HT Technology)

• Intel® Turbo Boost Technology

• Enhanced Intel® SpeedStep® Technology

• Intel® Advanced Vector Extensions (Intel® AVX)

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) for Intel® 64 and IA-32 Intel®

Architecture (Intel® VT-x) adds hardware support in the processor to improve

the 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

•Intel® Virtualization Technology (Intel® VT) for Directed I/O

(Intel® VT-d) adds processor and uncore implementations to support and

improve I/O virtualization performance and robustness. The Intel VT-d specification

and other Intel 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 reliable

virtualized platforms. By using Intel VT-x, a VMM is:

•Robust: VMMs no longer need to use para-virtualization or binary translation. This

means that off-the-shelf operating systems and applications can be run 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.