[L] Change in coreboot[master]: soc/intel/xeon_sp: Redesign resource allocation

[Felix Held (Code Review)]

Attention is currently required from: Anjaneya "Reddy" Chagam, Arthur Heymans, Christian Walter, Johnny Lin, Jonathan Zhang, Nico Huber, Tim Chu.

Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/67020?usp=email )

Change subject: soc/intel/xeon_sp: Redesign resource allocation
......................................................................

Patch Set 3:

(1 comment)

File src/soc/intel/xeon_sp/chip_common.c:

https://review.coreboot.org/c/coreboot/+/67020/comment/6122febd_1db3e133 :
PS1, Line 53: 	res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
> Are these indeed subtractive? i.e. can another device (not below this […]

from what i heard, this is probably decoded positively on intel server cpus and not subtractively. on amd it's definitely positively decoded, so i dropped the IORESOURCE_SUBTRACTIVE flag there; see https://review.coreboot.org/c/coreboot/+/74717/19/src/soc/amd/common/block/d...