Advanced Operating Systems   COMP9242 2002/S2

UNSW

Printer-Friendly Version Administration                - Notices - Course Intro - Consultations # On-line Survey (closed) - Survey Results   Work - Lectures - Milestone 0 - Project Admin - Project Spec - Project FAQ - Exam   Documentation - ASysT Lab - L4 source browser - Sulima ISA Simulator - R4x00 ISA Summary  - MIPS R4700 Reference - MIPS R4000 User Manual  - Network Driver - GT64111   Related Info - Aurema OS Prize - OS Hall of Fame   History - 2000 - 1999 - 1998   Staff - Gernot Heiser (LiC)

Fpage Mapping Rules In order to disambiguate fpage mapping, the following rules apply: Hotspot address is taken modulo receive fpage size. Uniquely determines a page in the receiver's address space which will receive a mapping. Hotspot address is also taken modulo send fpage size. Uniquely determines a page in the send fpage which will be mapped. In other words, the smaller fpage is mapped to/from the larger one so that: it is aligned according to its size, and it contains the hot spot. .