Add `DisableIoMapperMapping` - Githubissues

dortania / bugtracker

Dortania Bugtracker

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Add `DisableIoMapperMapping` #330

Open dhinakg opened 1 year ago

dhinakg commented 1 year ago

[ ] Instructions on when to use it
- VT-d enabled, DisableIoMapper off
- More than 16GB RAM
- DMAR table has Reserved Memory regions
- Using TB devices, or Aquantia/i225-V/i226-V Ethernet
  - Ventura removes the legacy kext for i225-V/i226-V, and DriverKit requires VT-d
  - You can grab the legacy kext from Monterey and reinject it if you want (make sure to add e1000=0)
[ ] Mention in troubleshooting
[x] Instructions on patching the DMAR table

dhinakg commented 1 month ago

Added to ACPI guide, the rest is shelved for a future date.