"Failed to start an HVM qube.."

In an attempt to get the sys-net VM running, I get the following message:
“Failed to start an HVM qube with PCI devices assigned - hardware does not support IOMMU/VT-d/AMD-Vi”

There is a documented way of running Qubes without such support. But how do I do so?
I am so frustrated - please help this poor guy.

Hello, not sure if you already figured it out. I was having the same problem but only just figured it out. I don’t know if this is the right way to do it - it just works for me. Probably not the secure way to do it.

Go to the “Q” icon > Service: sys-firewall > sys-firewall: Qube Settings > Advanced > Virtualization Mode: PVH.

Do the same/similar for the other services. Some of them can only use “PV.” Then check that your domains are set to the same (they should be already on PVH by default). That’s pretty much it.