Hello, does anyone is having issues with device passthrough on oVirt 4.5? I can passthrough the devices without issue to a given VM, but inside the VM it fails to recognize all the devices. In my case I’ve added 4x GPUs to a VM, but only one show up, and there’s the following errors inside the VM: [ 23.006655] nvidia 0000:0a:00.0: enabling device (0000 -> 0002) [ 23.008026] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid: NVRM: BAR1 is 0M @ 0x0 (PCI:0000:0a:00.0) [ 23.008035] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid: NVRM: BAR2 is 0M @ 0x0 (PCI:0000:0a:00.0) [ 23.008040] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid: NVRM: BAR3 is 0M @ 0x0 (PCI:0000:0a:00.0) [ 23.008045] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid: NVRM: BAR4 is 0M @ 0x0 (PCI:0000:0a:00.0) [ 23.008049] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid: NVRM: BAR5 is 0M @ 0x0 (PCI:0000:0a:00.0) [ 23.012339] NVRM: The NVIDIA GPU 0000:0a:00.0 (PCI ID: 10de:1db1) NVRM: installed in this system is not supported by the NVRM: NVIDIA 535.54.03 driver release. NVRM: Please see 'Appendix A - Supported NVIDIA GPU Products' NVRM: in this release's README, available on the operating system NVRM: specific graphics driver download page at www.nvidia.com. [ 23.016175] nvidia: probe of 0000:0a:00.0 failed with error -1 [ 23.016838] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid: NVRM: BAR0 is 0M @ 0x0 (PCI:0000:0b:00.0) [ 23.016842] nvidia: probe of 0000:0b:00.0 failed with error -1 [ 23.017211] NVRM: This PCI I/O region assigned to your NVIDIA device is invalid: NVRM: BAR0 is 0M @ 0x0 (PCI:0000:0c:00.0) [ 23.017215] nvidia: probe of 0000:0c:00.0 failed with error -1 [ 23.017248] NVRM: The NVIDIA probe routine failed for 3 device(s). [ 23.214409] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 535.54.03 Tue Jun 6 22:20:39 UTC 2023 [ 23.485704] [drm] [nvidia-drm] [GPU ID 0x00000900] Loading driver [ 23.485708] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:09:00.0 on minor 1 On the host this shows up on dmesg, but seems right: [ 709.572845] vfio-pci 0000:1a:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258 [ 709.572877] vfio-pci 0000:1a:00.0: vfio_ecap_init: hiding ecap 0x19@0x900 [ 709.572883] vfio-pci 0000:1a:00.0: vfio_ecap_init: hiding ecap 0x23@0xac0 [ 710.660813] vfio-pci 0000:1d:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258 [ 710.660845] vfio-pci 0000:1d:00.0: vfio_ecap_init: hiding ecap 0x19@0x900 [ 710.660851] vfio-pci 0000:1d:00.0: vfio_ecap_init: hiding ecap 0x23@0xac0 [ 711.748760] vfio-pci 0000:1e:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258 [ 711.748791] vfio-pci 0000:1e:00.0: vfio_ecap_init: hiding ecap 0x19@0x900 [ 711.748797] vfio-pci 0000:1e:00.0: vfio_ecap_init: hiding ecap 0x23@0xac0 [ 712.836687] vfio-pci 0000:1c:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258 [ 712.836718] vfio-pci 0000:1c:00.0: vfio_ecap_init: hiding ecap 0x19@0x900 [ 712.836725] vfio-pci 0000:1c:00.0: vfio_ecap_init: hiding ecap 0x23@0xac0 Thanks.