Fiasco properties

Björn Döbel doebel at os.inf.tu-dresden.de
Tue Feb 24 21:17:30 CET 2009


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Hi,

> 1. Which communication control mechanism is implemented in Fiasco? Is it
> "Clans and Chifs" as specified in "Lava Nucleus (LN) Reference Manual" or
> something else?

Fiasco does not implement Clans&Chiefs. There is a communication control
mechanism based on reference monitoring. An example implementation can
be found in l4/pkg/ipcmon.

> 2. AFAIK Fiasco (at least in public repository) doesn't support SMP yet. But
> at the same time there was SMP/Fiasco project and work performed by Sven
> Schneider "Multiprocessor Support for the Fiasco Microkernel". Are there any
> plans or maybe approximate date when SMP support will be available? What
> about L4Env with SMP support?

Yes, there are plans. The next Fiasco version provides SMP support, but
has not been officially released yet. I can't give you an exact date on
when this will happen, sorry. Somewhen before summer might be a
substantial educated guess, but this is not an official statement.

Bjoern
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