Intel E6420 - Core 2 Duo Dual-Core Processor Datasheet page 13

Introduction
• Functional operation — Refers to normal operating conditions in which all
processor specifications, including DC, AC, system bus, signal quality, mechanical
and thermal are satisfied.
• Execute Disable Bit — Allows memory to be marked as executable or non-
executable, when combined with a supporting operating system. If code attempts
to run in non-executable memory the processor raises an error to the operating
system. This feature can prevent some classes of viruses or worms that exploit
buffer over run vulnerabilities and can thus help improve the overall security of the
system. See the Intel
information.
• Intel
the processor to execute operating systems and applications written to take
advantage of Intel 64 architecture. Further details on Intel 64 architecture and
programming model can be found in the Intel
Software Developer Guide at http://www.intel.com/technology/intel64/index.htm.
• Enhanced Intel SpeedStep
technology allows trade-offs to be made between performance and power
consumptions, based on processor utilization. This may lower average power
consumption (in conjunction with OS support).
• Intel
provides silicon-based functionality that works together with compatible Virtual
Machine Monitor (VMM) software to improve upon software-only solutions. Because
this virtualization hardware provides a new architecture upon which the operating
system can run directly, it removes the need for binary translation. Thus, it helps
eliminate associated performance overhead and vastly simplifies the design of the
VMM, in turn allowing VMMs to be written to common standards and to be more
robust. See the Intel
Architecture for more details.
• Intel
Technology (Intel
requires for operation a computer system with Intel
Intel Trusted Execution Technology-enabled Intel processor, chipset, BIOS,
Authenticated Code Modules, and an Intel or other Intel Trusted Execution
Technology compatible measured virtual machine monitor. In addition, Intel Trusted
Execution Technology requires the system to contain a TPMv1.2 as defined by the
Trusted Computing Group and specific software for some uses.
Datasheet
®
Architecture Software Developer's Manual for more detailed
®
64 Architecture — An enhancement to Intel's IA-32 architecture, allowing
®
Virtualization Technology (Intel VT) — Intel Virtualization Technology
®
Virtualization Technology Specification for the IA-32 Intel
®
Trusted Execution Technology (Intel
®
TXT) is a security technology under development by Intel and
®
Extended Memory 64 Technology
®
Technology — Enhanced Intel Speedstep
®
TXT)— Intel
®
®
®
Trusted Execution
Virtualization Technology, a
®
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