Hi,
I installed a second Quadro card in the host to passthrough to a VM. However, there is an Interrupt Request (IRQ) collision between the Quadro K4200 and the SM Bus Controller that I do not know how to solve.
Followed the PCI-Passthrough procedure from https://pve.proxmox.com/wiki/Pci_passthrough as before. In practice I only added one line to vfio.conf for the K4200.
followed by,
and a host reboot.
I did check the iommu grouping before passing the GPU to the VM, assuming it would work since the GPUs are in different groups.
Am I missing something trivial? The 2nd GPU is not working even if it is the only GPU passed to the VM.
I installed a second Quadro card in the host to passthrough to a VM. However, there is an Interrupt Request (IRQ) collision between the Quadro K4200 and the SM Bus Controller that I do not know how to solve.
Followed the PCI-Passthrough procedure from https://pve.proxmox.com/wiki/Pci_passthrough as before. In practice I only added one line to vfio.conf for the K4200.
Code:
nano /etc/modprobe.d/vfio.conf
# K2200
options vfio-pci ids=10de:13ba,10de:0fbc disable_vga=1
# K4200
options vfio-pci ids=10de:11b4,10de:0e0a disable_vga=1followed by,
Code:
update-intramfs -u
update-grubI did check the iommu grouping before passing the GPU to the VM, assuming it would work since the GPUs are in different groups.
Code:
find /sys/kernel/iommu_groups/ -type l
/sys/kernel/iommu_groups/49/devices/0000:02:00.0
/sys/kernel/iommu_groups/49/devices/0000:02:00.1
/sys/kernel/iommu_groups/50/devices/0000:03:00.0
/sys/kernel/iommu_groups/50/devices/0000:03:00.1Am I missing something trivial? The 2nd GPU is not working even if it is the only GPU passed to the VM.
Last edited: