[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:
http://www.acpi.info/acpi_faq.htm
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:
http://www.google.cz/search?hl=cs&q=%22PCI+Firmware+Specification%22+filetype%3Apdf&btnG=Hledat&lr=
http://www.pcisig.com/specifications/conventional/pci_firmware/PCI_FW_Slot_Power_ECN_website.pdf
> 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 ;)
Rudolf
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