[coreboot] Resource Allocation discussion

Rudolf Marek r.marek at assembler.cz
Tue Dec 2 17:30:17 CET 2008

Myles Watson wrote:
>> -----Original Message-----
>> From: Rudolf Marek [mailto:r.marek at assembler.cz]
> I'm wondering why the size of the APIC region here is 256.  That's smaller
> than any reference from the resource map link you sent.

The K8M890 APIC decodes only 256 bytes. Some APICs can decode more.

> Which device should logically own the ACPI resources?  We can just allocate
> them there.  I vote for the domain or the mainboard (root device) to own
> them. 

Here is something how the other resources from host bus and PCI bus are handled:


How do I report a CPU-to-PCI bridge (root PCI Bus) in the ACPI NameSpace?

And also some more about the ACPI representation in:

> I'm in too deep here.  I'm hoping that we can figure out resource allocation
> a little better before we move on to ACPI tables.

Yes ;)


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