Functional Description
264 Datasheet
5.26.6 Intel
®
Flexible Display Interconnect
Intel
®
FDI connects the display engine in the processor with the display interfaces on
the PCH. The display data from the frame buffer is processed in the display engine of
the processor and sent to the PCH over the Intel FDI where it is transcoded as per the
display protocol and driven to the display monitor.
Intel FDI has two channels A and B. Each channel has 4 lanes and total combined is 8
lanes to transfer the data from the processor to the PCH. Depending on the data
bandwidth the interface is dynamically configured as x1, x2 or x4 lanes. Intel FDI
supports lane reversal and lane polarity reversal.
5.27 Intel
®
Virtualization Technology
Intel
Virtualization Technology (Intel
VT) makes a single system appear as multiple
independent systems to software. This allows for multiple, independent operating
systems to be running simultaneously on a single system. Intel VT comprises
technology components to support virtualization of platforms based on Intel
architecture microprocessors and chipsets. The first revision of this technology (Intel
VT-x) added hardware support in the processor to improve the virtualization
performance and robustness. The second revision of this specification (Intel VT-d) adds
chipset hardware implementation to improve I/O performance and robustness.
The Intel VT-d specification and other VT documents can be referenced here: http://
www.intel.com/technology/platform-technology/virtualization/index.htm
5.27.1 Intel
®
VT-d Objectives
The key Intel VT-d objectives are domain based isolation and hardware based
virtualization. A domain can be abstractly defined as an isolated environment in a
platform to which a subset of host physical memory is allocated. Virtualization allows
for the creation of one or more partitions on a single system. This could be multiple
partitions in the same OS or there can be multiple operating system instances running
on the same system offering benefits such as system consolidation, legacy migration,
activity partitioning or security.
5.27.2 Intel
®
VT-d Features Supported
• The following devices and functions support FLR in the PCH:
— High Definition Audio (Device 27: Function 0)
— SATA Host Controller 1 (Device 31: Function 2)
— SATA Host Controller 2 (Device 31: Function 5)
— USB2 (EHCI) Host Controller 1 (Device 29: Function 0)
— USB2 (EHCI) Host Controller 2 (Device 26: Function 0)
— GbE Lan Host Controller (Device 25: Function 0)
• Interrupt virtualization support for IOxAPIC
• Virtualization support for HPETs
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