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Re: Rep:Re: [f-cpu] virtually or physically-addressed cache ?

From: "Christophe"

> Lazy solution for my opinion.


> Not viable for micro kernel or exo kernel which really counts upon sharing
> some physical pages in different virtual addresses with different access
> rights.

You only need per process memory protection, the actual location in memory
is entirely arbitrary. In fact sharing data at different addresses in
different memory spaces is a big pain in the ass ... you cant share data
with embedded non relative pointers.

There's a lot of microkernels meant for 64 bit architectures which use a
global address space in fact.

> Anyway, if an OS programmer wants to use per process address spaces, he
> should be able to do so.



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