Patch Set 1:

I wonder if that commit just unmasked another issue.
When testing on Mandolin the IVRS table out of the HOB written by AGESA/FSP was so broken that the kernel (the version that is used in the live boot media of kubuntu 18.04 LTS; haven't checked which) just disabled the IOMMU altogether. The IVRS table generated by coreboot fixed at least that issue, so reverting it would cause a regression there.

This is causing complete instability on zork devices. Have you verified the coreboot IVRS table on zork with IOMMU turned on?

View Change

To view, visit change 44897. To unsubscribe, or for help writing mail filters, visit settings.