[M] Change in coreboot[main]: soc/intel/xeon_sp/skx: Configure IOAPICs

[Shuo Liu (Code Review)]

Attention is currently required from: Alicja Michalska, Christian Walter, Eric Lai, Felix Held, Johnny Lin, Jonathan Zhang, Patrick Rudolph, Tim Chu, [e-mail].

Shuo Liu has posted comments on this change by Patrick Rudolph. ( https://review.coreboot.org/c/coreboot/+/85170?usp=email )

Change subject: soc/intel/xeon_sp/skx: Configure IOAPICs
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Patch Set 5:

(3 comments)

File src/soc/intel/xeon_sp/skx/ioapic.c:

https://review.coreboot.org/c/coreboot/+/85170/comment/af8bbfa1_4670af71?usp... :
PS4, Line 47: 	}
> that is correct.

Is there special reason that in SKX, the linear GSI assignment is not usable? I guess is to match the static _PRT reporting results?

https://review.coreboot.org/c/coreboot/+/85170/comment/9df52943_033dbd73?usp... :
PS4, Line 49: i
> #include <arch/ioapic. […]

So, do we need to rebase this patch on https://review.coreboot.org/c/coreboot/+/85226/?

https://review.coreboot.org/c/coreboot/+/85170/comment/0041f208_04c2bad1?usp... :
PS4, Line 61: 	.enable_resources = pci_dev_enable_resources,
> it's a PCI endpoint device

Are 0x2036/0x2026 PCI root port devices?