VT-d and SR-IOV

[Virt]

I have been searching for a few days now trying to figure out what I'm missing. I have IOMMU enabled in BIOS and in proxmox and everything shows up as it should. I tried configuring SR-IOV and I get the same message several others have:

Not enoiugh MMIO resources for SR-IOV

The chip is the Intel 82576 which is on a Supermicro X8DTG-DF board. I confirmed that both the board and chip support SR-IOV and it is enabled in BIOS. After hours of trying to get it working I finally decided to install a separate card.
I installed the Intel 82571EB and tried passing it through to the VM using

qm set 102 01:00

(among other configurations) but consistently receive the error:

Failed to assign device "hostpci0.0": Operation not permitted

Being able to assign a dedicated nic is critical since this is to be used for pfsense.

 

[spirit]

Hi,

do you have tried with kernel 3.10 and vfio ?

https://pve.proxmox.com/wiki/Pci_passthrough#PCI_EXPRESS_PASSTHROUGH

 

[Virt]

I followed those directions. Is kernel 3.10 the default for 3.3? I made sure to do a dist-upgrade.

 

[spirit]

I followed those directions. Is kernel 3.10 the default for 3.3? I made sure to do a dist-upgrade.

Not yet, because they are no openvz support currently.

you need to install it

#apt-get install pve-kernel-3.10.0-4-pve


(this not remove kernel 2.6.32, so you can switch at boot in grub if you want)

 

[Virt]

I installed kernel 3.10 and cleared up some other issues. Now when I go to start the VM I get an error saying

No IOMMU Found. Unable to assign device "hostpci0"

Do I need to re-enable IOMMU somehow?

 

[Virt]

I think I might have just gotten it!
I removed the input from the qm set command and configured it manually.
In my case the card to passthrough was PCI 01:00.0 and 01:00.1 (dual port)
So I added

hostpci0: 01:00.0,driver=vfio
hostpci1: 01:00.1,driver=vfio

Note: this was after manually unbinding the devices and attaching them to the stub.

Still don't know about the SR-IOV though.

And Thank you massively for the info, I never would have figured the kernel thing out.