Re: MemoryControl for PowerPC

Espen Skoglund <[email protected]>
Newsgroups gmane.comp.micro-kernel.l4.l4ka.general
Message-ID <[email protected]>
[Martin Christian]
> Could someone confirm, that the MemoryControl syscall is not
> implemented in the PowerPC version of L4Ka::Pistachio? I don't need
> it anymore, but I need to mention it in my Diplomarbeit.

Yes.  MemoryControl is not implemented for PowerPC.  We did not
implement it for most architectures because we found that its
semantics was quite ambigous, and often didn't offer what we wanted.
The plan has been to drop MemoryControl in favour of a more generic
MapControl syscall that offers the semantics of both MemoryControl and
Unmap combined.  In fact, if you look at the IA32 implementation of
MemoryControl you'll see that it's only a wrapper for the in-kernel
implementation of mapctrl.

	eSk
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