VFIO Support WIP: (VFIO contradiciton in README)

[M1cha]

just a nitpick, but the sample commands in https://github.com/sickcodes/dock-droid/blob/5a3ed6502f8fe384d462669dc83d80e317d81daf/README.md#vfio-passthrough are for virtio/usb forwarding, not vfio forwarding.
vfio forwarding would look like this:

-device vfio-pci,host=04:00.0

[sickcodes]

Will adjust, thanks for pointing that out.

I keep trying vfio passthru and it keeps never working 😂 laptop lyf, no USB ports after I passthru the group, even using Linux Zen plus acs override 😔 need to get a desktop or a usb graphics card.

[M1cha]

the online documentation for that is very bad and mostly outdated(due to kernel and qemu updates). But here's some references that helped me set it up several times:

• https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#Plain_QEMU_without_libvirt (the whole page + the section I linked)
• https://www.kernel.org/doc/Documentation/vfio.txt

the general summary:

• make sure your hardware supports VT-d/AMD-VI and UEFI and linux have it enabled
• figure out which devices are in the same iommu group
• detach all drivers from those devices
• attach vfio-pci to those devices

[sickcodes]

I ran Linux-Zen

Added boot arg:

pcie_acs_override=downstream,multifunction

Got 27 VFIO groups, usually get 16, can't pass through the NVIDIA, takes over every peripheral, even the touchpad.

Will try again at some stage

[sickcodes]

Interesting usage: https://jellyfin.org/docs/general/administration/hardware-acceleration.html