XCP-ng PCI & USB Pass Through Video Commands

Software & Web Applications
1

These are all the commands used in the XCP-ng USB & PCIe Pass Through video:

# List all the devices 
lspci -D

# Hide  Realtek NIC from DOM0
/opt/xensource/libexec/xen-cmdline --set-dom0 "xen-pciback.hide=(0000:2a:00.0)"

# Hide Avermedia from DOM0
/opt/xensource/libexec/xen-cmdline --set-dom0 "xen-pciback.hide=(0000:10:00.0)"

# Show all devices hidden from DOM0
/opt/xensource/libexec/xen-cmdline --get-dom0 xen-pciback.hide

# Hide from Avermedia & Realtek DOM0 
/opt/xensource/libexec/xen-cmdline --set-dom0 "xen-pciback.hide=(0000:10:00.0)(0000:2a:00.0)"

# Clear all devices hidden from DOM0
/opt/xensource/libexec/xen-cmdline --delete-dom0 xen-pciback.hide

# Show assignable devices
xl pci-assignable-list

# Add Avermedia Device to VM
xe vm-param-set other-config:pci=0/0000:10:00.0 uuid=900973ef-4e6c-ec6c-ee2f-d3625a306840

# Add Avermedia & Realtek Device to VM
xe vm-param-set other-config:pci=0/0000:10:00.0,0/0000:2a:00.0 uuid=900973ef-4e6c-ec6c-ee2f-d3625a306840

# Show Devices Attached to VM
xe vm-param-get param-name=other-config uuid=900973ef-4e6c-ec6c-ee2f-d3625a306840

# Remove all devices attached to VM
xe vm-param-set other-config:pci uuid=900973ef-4e6c-ec6c-ee2f-d3625a306840
2

Great video. Maybe I missed it but can XCP-ng allow multiple VMs running to tap into the pass through device at the same time?

I’m trying to decide if running TrueNAS Scale virtually is going to be a pain or if I should be running it bare metal.

3

I am able to pass through a BlackMagic Design Decklink card to a VM but if I re-assign it to a different VM it won’t work without a reboot. It does show up in the new VM but won’t actually output video. Is that expected?

4

That is correct. To pass through devices you have to do this while the VM is off or if it is on you have to reboot.

5

I get shutting off the VM but I have to shut off the HOST before the card will work after being re-assigned.