@stormi said in XCP-ng 8.3 PCI Passthrough issue:

@MJGZ51 said in XCP-ng 8.3 PCI Passthrough issue:

For anyone experiencing this issue, it happens when you enable Passthrough via CLI (hide devices from DOM).

After a clean install of xcp-ng 8.3, Passthrough would work via XOA GUI. However, as soon as I enabled PCI Passthrough for a device via CLI, the errors appeared.

I've moved to just passing the devices via GUI and not CLI. Everything is now working.

What's the involved CLI command?

Following the xcp-ng documentation for PCI passthrough:

/opt/xensource/libexec/xen-cmdline --set-dom0 "xen-pciback.hide=(0000:04:01.0)"

Then,

xe vm-param-set other-config:pci=0/0000:04:01.0 uuid=<vm uuid>

That's when I see the errors appear in XOA. If I remove the device from Passthrough via CLI (xe vm-param-remove param-name=other-config param-key=pci uuid=<vm uuid>), everything works again in XOA.

For anyone experiencing this issue, it happens when you enable Passthrough via CLI (hide devices from DOM).

After a clean install of xcp-ng 8.3, Passthrough would work via XOA GUI. However, as soon as I enabled PCI Passthrough for a device via CLI, the errors appeared.

I've moved to just passing the devices via GUI and not CLI. Everything is now working.

@psafont Thanks for the reply.

To the untrained eye, I couldn't find anything glaring. Is there anything specific I should be looking for?

I'm wondering if I should just reinstall XCP-ng on that host and start fresh.

Thanks!

I have an XCP-ng 8.3 installation that passes through a few devices (2 USB PCI Cards and 1 Graphics Card).

Dell R630 Host (XCP-ng 8.3 - upgraded from 8.2)
XOA from Sources (commits are up-to-date)

Initially, when I set the host up, I passed these devices through using CLI. Now, after updating the host I tried using XOA and get the following:

These devices are successfully passed through into a couple VMs using the CLI method, but can't seem to get this working in XOA.

The other thing that's odd, the USB PCI devices are not showing in the list above.

Does anyone have any ideas what the error shown above is from?

Thank you.