I am trying to pass through an old Radeon HD5830 to a Ubuntu VM. I have checked that it is in its own IOMMU group, and that IOMMU is enabled in unRAID. but when i try to start my VM, i get this error.. any tip would be very much appreciated :)

 

Execution error

internal error: qemu unexpectedly closed the monitor: 2017-11-05T05:19:22.533077Z qemu-system-x86_64: -device vfio-pci,host=01:00.0,id=hostdev0,bus=pci.2,addr=0x5: vfio: failed to set iommu for container: Operation not permitted
2017-11-05T05:19:22.533112Z qemu-system-x86_64: -device vfio-pci,host=01:00.0,id=hostdev0,bus=pci.2,addr=0x5: vfio: failed to setup container for group 11
2017-11-05T05:19:22.533118Z qemu-system-x86_64: -device vfio-pci,host=01:00.0,id=hostdev0,bus=pci.2,addr=0x5: vfio: failed to get group 11
2017-11-05T05:19:22.533133Z qemu-system-x86_64: -device vfio-pci,host=01:00.0,id=hostdev0,bus=pci.2,addr=0x5: Device initialization failed

 

 

Are you also passing through the card's audio?

yes, trying to passthrough both. have also tried to choose just the graphics as well, but same problem. this is my setup

Edited November 11, 20178 yr by Andremelst

I'm not sure this card will work using ovmf. You could try Seabios, but I don't think that is the problem here.

First try to add the below in between append and initrd=/bzroot in your syslinux.cfg.

Go to the Main page of unraid, click Flash and you can add it directly in the syslinux.cfg editor.

 

vfio_iommu_type1.allow_unsafe_interrupts=1

 

Edited November 12, 20178 yr by saarg

like this?

tried with that, and making a new VM with seabios. get the error as shown under.

thanks for your response