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Any suggestions on the abbrev, btw? "Three-Letter Acronym". I love "TLA" because the very fact that one has to ask what it means, shows why using them makes it harder to communicate. :) As for alternatives, here I'll demonstrate that "GTP" actually is probably better than anything else I can come up with, heh. Brainstorming: * GPN ("Guest pfn to pfn") * GTPN (similar, but with a "T" for "to") * GFNC ("guest frame number conversion") ugggh. :) thanks, -- John Hubbard NVIDIA