Ubuntu
linux package

  1. Bug #1776563
  2. Comment #534

Comment 534 for bug 1776563

Revision history for this message
In , kai.heng.feng (kai.heng.feng-linux-kernel-bugs) wrote :

(In reply to Suravee Suthikulpanit from comment #204)
> For IOMMU-related part, as mentioned above, the IVRS table does not list the
> correct IOAPIC IDs. This would cause driver to disable interrupt-remapping
> support provided by HW IOMMU.
> Here the "ivrs_ioapic[4]=00:14.0 ivrs_ioapic[5]=00:00.2" boot option is
> needed to override the table. Permanent solution would be for laptop OEMs
> (e.g. Acer, Lenovo) to fix this in their BIOSes.

Is it possible to use DMI based quirk to override the tables?