Technology Support; Intel Trusted Execution Technology; Vt-X/Vt-D/Vt-C - Intel S2600CO Family Technical Product Specification

Intel® Server Board S2600CO Family TPS
4.

Technology Support

4.1 Intel Trusted Execution Technology
®
® ®
The Intel Xeon Processor E5 4600/2600/2400/1600 Product Families support Intel
Execution Technology (Intel
protect against software-based attacks. Intel
security features and capabilities into the processor, chipset and other platform components.
When used in conjunction with Intel
with an active TPM, Intel
your virtual applications.
4.2 Intel Virtualization Technology – Intel
®
®
Intel Virtualization Technology consists of three components which are integrated and
interrelated, but which address different areas of Virtualization.
®
Intel Virtualization Technology (VT-x) is processor-related and provides capabilities

needed to provide a hardware assist to a Virtual Machine Monitor (VMM).
®
Intel Virtualization Technology for Directed I/O (VT-d) is primarily concerned with

virtualizing I/O efficiently in a VMM environment. This would generally be a chipset I/O
feature, but in the Second Generation Intel
Integrated I/O unit embedded in the processor, and the IIO is also enabled for VT-d.
®
Intel Virtualization Technology for Connectivity (VT-c) is primarily concerned I/O

hardware assist features, complementary to but independent of VT-d.
®
Intel VT-x is designed to support multiple software environments sharing same hardware
resources. Each software environment may consist of OS and applications. The Intel
Virtualization Technology features can be enabled or disabled in the BIOS setup. The default
behavior is disabled.
®
Intel VT-d is supported jointly by the Intel
Families and the C600 chipset. Both support DMA remapping from inbound PCI Express*
memory Guest Physical Address (GPA) to Host Physical Address (HPA). PCI devices are
directly assigned to a virtual machine leading to a robust and efficient virtualization.
®
The Intel S4600/S2600/S2400/S1600/S1400 Server Board Family BIOS publishes the DMAR
table in the ACPI Tables. For each DMA Remapping Engine in the platform, one exact entry of
DRHD (DMA Remapping Hardware Unit Definition) structure is added to the DMAR. The DRHD
structure in turn contains a Device Scope structure that describes the PCI endpoints and/or sub-
hierarchies handled by the particular DMA Remapping Engine.
Similarly, there are reserved memory regions typically allocated by the BIOS at boot time. The
BIOS marks these regions as either reserved or unavailable in the system address memory
map reported to the OS. Some of these regions can be a target of DMA requests from one or
more devices in the system, while the OS or executive is active. The BIOS reports each such
memory region using exactly one RMRR (Reserved Memory Region Reporting) structure in the
DMAR. Each RMRR has a Device Scope listing the devices in the system that can cause a
DMA request to the region.
For more information on the DMAR table and the DRHD entry format, refer to the Intel
Virtualization Technology for Directed I/O Architecture Specification. For more general
Revision 1.0
®
TXT), which is a robust security environment designed to help
®
Trusted Execution Technology integrates new
®
Virtualization Technology and Intel
®
Trusted Execution Technology provides hardware-rooted trust for
®
Xeon
Intel order number G42278-002

VT-x/VT-d/VT-c

®
®
Core™ Processor Family there is an
®
Processor E5 4600/2600/2400/1600 Product
Technology Support
®
Trusted
®
VT for Directed IO,
®
®
43