- Handle invalidation of G2T and L2M tables on context switch.
  Retest performance.

- dtTranslateG2T() case gOff==0

- dtSetG2TPair() cases

- dtTranslateLPAToMI() uses brute-force lookup when not in hash
  table.  The real monitor could use phy page markings for a lookup.

- dtTranslateLPAToMI() add new entry more intelligently

- dtTranslateLPAToMI() Meta entry allocation scheme
