I have a HP Gen 8 Microserver with a PCIe quad NIC passed through to a pfSense VM.

On 7.0.1 it works fine, but when I tried to upgrade it to 7.1.4 the VM fails to start with the following error:

Execution error

internal error: QEMU unexpectedly closed the monitor (vm='pfSense'): 2025-08-13T16:43:44.250018Z qemu-system-x86_64: -device {"driver":"vfio-pci","host":"0000:07:00.0","id":"hostdev0","bus":"pci.3","addr":"0x0"}: vfio 0000:07:00.0: failed to setup container for group 1: Failed to set group container: Invalid argument

I tried creating a new VM but the problem still exists with only a downgrade back to 7.0.1 fixing it and VFIO bind is enabled for all the NICs.

The attached diag was made before the downgrade.

Any advice or is this a bug?

Please note that the system is at my parents house, so it may take a few days before I can try anything.

Thank you

HP-Gen8-unraid-diagnostics-20250813-1740.zip

Tried updating to 7.2.2, same issues are occuring.

Don't have access to the updated diag right now but it's the same errors in the logs from when I looked for 7.1.4.

Aug 13 17:39:34 Primrose-unRAID kernel: DMAR: [Firmware Bug]: No firmware reserved region can cover this RMRR [0x00000000000e8000-0x00000000000e8fff], contact BIOS vendor for fixes

Aug 13 17:39:34 Primrose-unRAID kernel: DMAR: [Firmware Bug]: Your BIOS is broken; bad RMRR [0x00000000000e8000-0x00000000000e8fff]

Aug 13 17:40:50 Primrose-unRAID kernel: vfio-pci 0000:07:00.0: Firmware has requested this device have a 1:1 IOMMU mapping, rejecting configuring the device without a 1:1 mapping. Contact your platform vendor.

I am running the latest versions of BIOS and iLO.