The MMU support is a very challenging project. The scope of the project
and potential use cases must be determined. You need a lot of experience
to design good APIs and it helps if you know the APIs for this kind of
stuff on other systems like QNX, Linux, FreeBSD, etc. For the
architecture support a lot of background knowledge is required at least
on PowerPC, ARMv5..8, SPARC, Nios2, MIPS, etc. For example, changing the
TLB1 based MMU during application run-time on PowerPC (including SMP
support, cache consistency) is not easy. There are some optimization
problems involved if you want to determine a good cover with memory
areas (alignment restrictions, limited number of areas in the MMU/MPU if
not page based, e.g. 16).
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
PGP : Public key available on request.
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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