> Also regarding you questions on IRC last week: I hope you don't forget > that Debian does some changes to the default IOMMU configuration. So > applying the same config to an upstream kernel will need explicit > setting the wanted iommu state. Yes, we're testing with the related Debian config (now without any Debian patches though)
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set CONFIG_INTEL_IOMMU_DEFAULT_ON_INTGPU_OFF=y # CONFIG_INTEL_IOMMU_DEFAULT_OFF is not set and intel_iommu=on Originally we suspected an interaction with the Debian IOMMU intgpu patches but were able to rule them out.
