What is SLAT?
SLAT or “Second Level Address Translation” technology is mainly used by Hyper-V to perform more VM memory management functions and reduce the overhead of translating guest physical addresses to real physical addresses. As result, Hypervisor CPU time is significantly reduced, and more memory is saved for each VM. Second Level Address Translation technology is introduced in both Intel and AMD.
Intel calls their SLAT technology EPT(Extended Page Table). This technology was first introduced in the Nehalem microarchitecture found in Core i3, Core i5, and Core i7 processors.
AMD, introduced SLAT technology in their third generation Opteron processors (code name Barcelona). They called it Rapid Virtualization Indexing (RVI) technology.
Windows 8 has Hyper-V as a vitalization platform. SLAT will be required for Hyper-V in Windows 8.
Follow the steps to check if your CPU Supports Second Level Address Translation (SLAT).
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