Command line: BOOT_IMAGE=/vmlinuz-5.0.0-13-generic root=UUID=6eeed3b5-4320-4505-af0d-30c548a69b9d ro intel_iommu=on modprobe.blacklist=nouveau,nvme,xhci_hcd vfio_iommu_type1.allow_unsafe_interrupts=1 Subsystem: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961 Ġ5:00.0 USB controller : VIA Technologies, Inc. GP106 High Definition Audio Controller Ġ4:00.0 Non-Volatile memory controller : Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961
GP106 Ġ2:00.1 Audio device : NVIDIA Corporation GP106 High Definition Audio Controller (rev a1) Lspci -k: 02:00.0 VGA compatible controller : NVIDIA Corporation GP106 (rev a1) I need allow_unsafe_interrupts=1, or vfio cannot bind anything at all. GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on modprobe.blacklist=nouveau,nvme,xhci_hcd vfio_iommu_type1.allow_unsafe_interrupts=1" Software: Ubuntu 19.04 Server, stock 5.0.0-13 kernel. My issue is, I cannot get xhci_hcd to keep its dirty hands off my controller. This simplifies matters, since I don't need to tiptoe around individual ports. My board has only USB 2.0 and I plugged in generic VIA-based USB 3.0 controller.
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