Smart Array P420 Passthrough

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pedro84430

New Member
Mar 17, 2021
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Hello Everyone
So I just installed Proxmox on my Proliant dl380e G8 with the following specs:
2x Xeon E5 2420 6 Core 1.9GHz
64 DDR3 RAM

I have Proxmox installed on 2 SATA HDDs Raid1 with a SATA Controller.
I want to virtualise TrueNAS and passthrough the P420 card.

First thing I did was flash the card into HBA mode and that worked fine (by telling it in the BIOS with a message)

Next thing I did was followed all the steps from the wiki page (https://pve.proxmox.com/wiki/Pci_passthrough)
After executing all the commands and configuring everything I selected the PCI device in VM > Hardware
than started the VM and it gave me an error
Code: 
kvm: -device vfio-pci,host=0000:0a:00.0,id=hostpci0,bus=ich9-pcie-port-1,addr=0x0: vfio 0000:0a:00.0: failed to setup container for group 31: Failed to set iommu for container: Operation not permitted
TASK ERROR: start failed: QEMU exited with code 1

** ALSO the fans span up to 100% (showing on the iLO) and it told me the card has failed after starting the VM


If anyone could help me I would appreciate. BTW this is my first time installing Proxmox
 
Is there any useful information in dmesg or journalctl -b 0 when you try to start the VM and get this error?
Maybe this post from reddit will work for you? Maybe try (temporarily) adding vfio_iommu_type1.allow_unsafe_interrupts=1 to the kernel parameters in the GRUB or systemd boot menu when booting Proxmox?
EDIT: Good suggestion here too: blacklist the driver (or bind vfio-pci early via /etc/modprobe.d) to make sure the device is not touched before passthrough.
 
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