SLAT stands for "Second Level Address Translation".

Intel calls their SLAT technology EPT (Extended Page Table

Extended Page Table

Extended Page Tables is an Intel second generation x86 virtualization technology for the memory management unit . When this feature is active, the ordinary IA-32 page tables translate from linear addresses to guest-physical addresses...

) . This technology was introduced in the Nehalem microarchitecture found in certain Core i7, Core i5, and Core i3 processors.

AMD, beginning with their 3rd generation Opteron

Opteron

Opteron is AMD's x86 server and workstation processor line, and was the first processor which supported the AMD64 instruction set architecture . It was released on April 22, 2003 with the SledgeHammer core and was intended to compete in the server and workstation markets, particularly in the same...

 processors (code name Barcelona) support SLAT through their Rapid Virtualization Indexing

Rapid Virtualization Indexing

Rapid Virtualization Indexing is an AMD second generation hardware-assisted virtualization technology for the processor memory management unit ....

(RVI) technology.