Re: Claim on IEEE1275

[Marco Gerards]

Hollis Blanchard <address@hidden> writes:

> It has been pointed out to me that a simpler fix would just be to
> ignore map failures. That sounds better to me... we *are* supposed to
> use map, but the first 32 MB or so are probably already mapped anyways
> on most systems.
>
> Likely the error occurs because "map" is meaningless in real-mode, and
> Codegen chose to return an error in this case. I was told an
> implementation in real-mode *may* provide an mmu node, so things seem
> rather open-ended in this situation.
>
> The patch I sent earlier may get us into trouble if we want to load
> things on New World that happen to fall outside the already-mapped
> region (like large ramdisks). I think a better plan would be:
> 1) only call map in virtual mode

Right.

> 2) *and* ignore map errors. We could report them as warnings in a
> verbose mode for remote debugging.

Ignore them in claimmap you mean, right?  But doesn't #1 fix the
problem already?

--
Marco