On Tuesday 02 May 2006 09:41, Brown, Len wrote:
> You are right. This code is wrong.
> It makes absolutely no sense to reserve vectors in advance
> for every RTE in the IOAPIC when we don't even know if they
> are going to be used.
>
> This is clearly a holdover from the early IOAPIC/MPS days
> when we were talking about 4 to 8 non-legacy RTEs.
Yes I agree. A lot of the IO-APIC code could probably
need some renovation.
> This is where the big system vector shortage problem
> should be addressed.
If we go to per CPU IDTs it will be much less pressing, but
still a good idea.
-Andi
P.S.: There seems to be a lot of confusion about all this.
Maybe it would make sense to do a write up defining all the terms
and stick it into Documentation/* ?
-
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