[coreboot] AMD platform: IO-APIC => Local APIC delivery modes

[Rudolf Marek]

Hi again,

> It would be interesting to test 0x00...300 and 0xff...400 just for completeness.

The 0x00...300 does the same (NMI delivered on all CPUs) and the other one does
nothing.

> That would be great.  I am really curious about the official clarification on
> the issue.  Maybe there is a configuration bit that they forgot to set or
> something like that.

I try to get someone responsible for this.

> I found a really old document about AMD-8131 chipset which seems like something
> that later morphed into the APIC component of the southbrdiges and in that
> document they discuss APIC -> HT mapping quite extensively.   I wonder what went
> wrong later on.
> In this copy of the document it's on page 67
> http://www.tautec-electronics.de/Datenblaetter/Schaltkreise/AMD8131.pdf

I think the SB600 series was an ATI design, so perhaps it is just bug.

Thanks
Rudolf