AMD’s Virtualization (AMD-V) technology, which takes some tasks that virtual machine managers (VMMs) perform in software, through emulation, and simplifies them through enhancements to the AMD Athlon 64 and Opteron instruction set. AMD Virtualization Technology was announced in 2004, under the code-name Pacifica, and AMD released technical details in mid-2005. Processors using this technology are expected to appear in 2006.
See also “Understanding Hardware-Assisted Virtualization” in Webopedia’s Did You Know section.