Implementing mmap()

Calling mmap
Functionality in process local VMM
Verifies state of file descriptor
Establishes memory range and driver

On Page Fault
Pager thread finds the range
Contacts the correct server
Installs memory

Anonymous Memory
Done locally
Faults
Reuse pages
Zeroing is done locally

sbrk() and Stacks
Nothing special
Up to local VMM range drivers