Advantech AIIS-3411 User Manual page 42

3.2.2.2 CPU Configuration
Software Guard Extensions (SGX)
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Intel Software Guard Extensions (SGX) is a set of security-related instruction
codes that are built into Intel central processing units (CPUs). They allow user-
level as well as operating system code to define private regions of memory,
called enclaves, whose contents are intended to be protected and unreadable
by any process outside the enclave itself, including processes running at higher
privilege levels.
Hardware Prefetcher
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Hardware Prefetching is a technique that fetches instructions and/or data from
memory into the CPU cache memory well before the CPU needs it to improve
the load-to-use latency. You may choose to enable or disable it.
Adjacent Cache Line Prefetch
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The Adjacent Cache-Line Prefetch mechanism, like automatic hardware
prefetch, operates without programmer intervention. When it is enabled through
the BIOS, two 64-byte cache lines are fetched into a 128-byte sector, regardless
of whether the additional cache line has been requested or not. You may choose
to enable or disable it.
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Intel Virtualization Technology
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This feature is used to enable or disable the Intel
(IVT) extension. It allows multiple operating systems to run simultaneously on
the same system by creating virtual machines, each running its own x86 operat-
ing system. When enabled, a VMM can utilize the additional hardware capabili-
ties provided by Vanderpool Technology.
Active Processor Core
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Use this item to select the number of processor cores you want to activate when
you are using a dual- or quad-core processor.
AIIS-3411 User Manual
Figure 3.5 CPU Configuration
30
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Virtualization Technology