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Re: [MiNT] fVDI issues



Hello!

> > Does MiNT currently do anything about pointers passed to system calls
> > under memory protection, by the way?
>
> What, for example?

Checking correctness :-)

> > Or will for example an Fread to
> > memory not owned by the calling process succeed?
>
> No, it won't (the MMU disallows the access).

This is not the right btw. The check should be done on an defined point
before the memory is accessed.

> Yes, the same for the AES. Ideally, the AES should be a bunch of shared
> libraries executing completely in user mode, plus one screen manager
> process, perhaps. This would solve memory access problems to a great extent,
> I suppose.

Maybe. But you still have the problem to go back to usermode after the
process has trapped (e.g. entering kernel -> leaving kernel).


Ciao
   ...Frank

--
ATARI FALCON 040 // MILAN 060
-----------------------------------------
http://www.cs.uni-magdeburg.de/~fnaumann/
e-Mail: fnaumann@freemint.de