[coreboot-gerrit] [S] Change in coreboot[master]: soc/amd/*/root_complex: reserve IOMMU MMIO area

[Arthur Heymans (Code Review)]

Attention is currently required from: Felix Held, Fred Reitberger, Jason Glenesk, Matt DeVillier, Raul Rangel.

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/75611?usp=email )

Change subject: soc/amd/*/root_complex: reserve IOMMU MMIO area
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Patch Set 4: Code-Review+2

(1 comment)

Patchset:

PS4: 
I found the following in docs. I guess reserving the full 4G is a good idea.

If IOMMU is enabled, the processor must reserve the following addresses:
• 0x00FD_0000_0000->0x00FD_F8FF_FFFF (3.9GB)
• 0x00FD_F910_0000->0x00FD_F91F_FFFF (1MB)
• 0x00FD_FB00_0000->0x00FD_FFFF_FFFF (80MB)