Intel S1400SP4 DBS1400SP4 Manual De Usuario

Los códigos de productos

DBS1400SP4

Intel® Server Board S1400SP TPS

Technology Support

Revision 1.0

Intel order number G64248-001

5. Technology Support

5.1 Intel

Trusted Execution Technology

The Intel

Xeon

Processor E5 4600/2600/2400/1600 Product Families support Intel

Trusted

Execution Technology (Intel

TXT), which is a robust security environment designed to help

protect against software-based attacks. Intel

Trusted Execution Technology integrates new

security features and capabilities into the processor, chipset and other platform components.
When used in conjunction with Intel

Virtualization Technology and Intel

VT for Directed IO,

with an active TPM, Intel

Trusted Execution Technology provides hardware-rooted trust for

your virtual applications.

5.2 Intel

Virtualization Technology – Intel

VT-x/VT-d/VT-c

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 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

Core™ Processor Family there is an

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

Xeon

Processor E5 4600/2600/2400/1600 Product

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.