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