Use monitor unmapped IO port handler rather than user space.

Get rid of VM message count instrumentation spew to kernel log

Get rid of extra IAC indirection sysIAC -> picIAC

Get rid of IAC stuff from user space.

unallocVmPages/unreserve_guest_pages called twice,
  release & teardown.

move mapMonitor to -host.c

do we need inemu flags for sel/desc?

Zero out GDT when remapped.

When is mapMonitor called?

Fix extra PDBR reload in nexus.S

emulation of LOCK prefix with non-lockable instructions, or ones that
  are lockable but do not use a memory reference (regs only) - causes
  fault.
