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Intel® Virtualization Technology for Directed I/O: Spec1 IntroductionThis document describes the Intel® Virtualization Technology for Directed I/O (Intel® VT for Directed I/O); specifically, it describes the components supporting I/O virtualization as it applies to platforms that use Intel® processors and core logic chipsets complying with Intel® platform specifications.The document includes the following topics:• An overview of I/O subsystem hardware functions for virtualization support• A brief overview of expected usages of the generalized hardware functions• The theory of operation of hardware, including the programming interfaceThe following topics are not covered (or are covered in a limited context):• Intel Virtualization Technology for Intel® 64 Architecture. For more information, refer to the “Intel® 64 Architecture Software Developer's Manual, Volume 3B: System Programming Guide”.• Intel Virtualization Technology for Intel® Itanium® Architecture. For more information, refer to the “Intel® Itanium® Architecture software developer's manuals”.1.1 AudienceThis document is aimed at hardware designers developing Intel platforms or core-logic providing hardware support for virtualization. The document is also expected to be used by operating system and virtual machine monitor developers utilizing the I/O virtualization hardware functions.Read the full Intel® Virtualization Technology for Directed I/O Architecture Specification.
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