Attention is currently required from: Nico Huber. Matt DeVillier has posted comments on this change. ( https://review.coreboot.org/c/libgfxinit/+/48824 )
Change subject: gma: Extend dummy PTEs for buggy VT-d to 256 before/after the FB ......................................................................
Patch Set 1:
(1 comment)
Patchset:
PS1: unfortunately still getting DMAR errors even with this patch, which occur directly after the handoff to the i915 framebuffer:
fb0: switching to inteldrmfb from EFI VGA DMAR: DRHD: handling fault status reg 3 DMAR: [DMA Read] Request device [00:02.0] PASID ffffffff fault addr 9bd5d000 [fault reason 06] PTE Read access is not set DMAR: DRHD: handling fault status reg 3 DMAR: [DMA Read] Request device [00:02.0] PASID ffffffff fault addr 9bd47000 [fault reason 06] PTE Read access is not set DMAR: DRHD: handling fault status reg 3 DMAR: [DMA Read] Request device [00:02.0] PASID ffffffff fault addr 9bd57000 [fault reason 06] PTE Read access is not set