Use virtual_avail instead of freemempos as the starting point of the available physical memory, as the vm uses the memory between freemempos and virtual_avail.
Use virtual_avail instead of freemempos as the starting point of the available
physical memory, as the vm uses the memory between freemempos and
virtual_avail.

MFC After:	3 days

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase