qemu-system-x86_64: vfio: Cannot reset device 0000:00:1f.3, no available reset mechanism.

[dantahoua]

I cannot install the Windows 10 driver in the VM probably because of this message when strat QEmu...
qemu-system-x86_64: vfio: Cannot reset device 0000:00:1f.3, no available reset mechanism.

Also do I have to use this qemu and generate it from source or can I use the regular qemu-kvm from ubuntu? (I'm on popOs)

[dantahoua]

Tried with this version of qemu and still the same error... :(

[ryanprescott]

Are you passing everything in the IOMMU group through to QEMU? Also, yes you do need to use the custom QEMU as only that version generates the proper output.

…

On Fri, Jun 25, 2021 at 3:26 PM Vincent Morel ***@***.***> wrote: Tried with this version of qemu and still the same error... :( — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AOWASR6NN2WUR4SE5EHRB3LTUTJ4RANCNFSM47KLVWZQ> .

[dantahoua]

Thanks, Yes I'm passing all the group with
sudo ./vfio-bind.sh 0000:00:1f.0 0000:00:1f.3 0000:00:1f.4 0000:00:1f.5
Do I have to pass them also to the start script to Qemu? The main address is 00:1f.3

[ryanprescott]

Hi, yes I believe you may need to pass them all in.

[aleksfadini]

Thanks, Yes I'm passing all the group with sudo ./vfio-bind.sh 0000:00:1f.0 0000:00:1f.3 0000:00:1f.4 0000:00:1f.5 Do I have to pass them also to the start script to Qemu? The main address is 00:1f.3

I am dealing with the same issue. How do you pass the to the start script to qemu?

I tried both

sudo qemu-system-x86_64 -enable-kvm -hda win10.img -m 4G -smp 4 -device vfio-pci,host="0000:00:1f.0 0000:00:1f.3 0000:00:1f.4 0000:00:1f.5",x-no-mmap=true -trace events=./events.txt -monitor stdio

and

sudo qemu-system-x86_64 -enable-kvm -hda win10.img -m 4G -smp 4 -device vfio-pci,host=0000:00:1f.3,x-no-mmap=true -trace events=./events.txt -monitor stdio

Neither seems to work. My soundcard is 1f.3, but I need to bind 1f.0, 1f.4 and 1f.5 as well (which I did bind with the vfio script as you did in this thread).

[dgunay]

I tried adding a separate -device flag for each device, but that just made the error appear for all the devices I added.