@olivierlambert

Awesome Thanks Olivier.

Darn, I thought that might be the case. I have heard it does work with with ESX and Proxmox. I think Proxmox is KVM based, but not 100% sure.

I do hope Xen gets this figured out. This likely isnt a big deal for linux guests, but newer Windows guests (and their related security features) are starting to require this for their advanced security configurations.

I've seen a couple threads referring to nested hyper-v not working with XCP-ng. We're trying to implement Windows VBS (virtualization based security) in our 2019 servers. This apparently uses Hyper-V to achieve this. I've tested some of the settings used in the other threads in effort to get hyper-v to work, but have been unsuccessful at this point.

Just thought I'd check, has anyone had success getting it to run yet?

Thanks

I have a fully updated xcp 8.2 running with 2 nvidia quadro rtx 6000s.

GPU passthrough works as expected.
GPU PCI passthrough works as expected.
USB PCI passthrough of an ASMedia controller works as expected

However I cannot combine GPU and USB pci passthrough. Starting the vm just hangs. I see no errors, nothing of note in xl dmesg.

I have done this before with KVM on Fedora linux, on the same machine. So I know its not the hardware or bios.

Is there some underlying reason why USB and GPU PCI Passthrough together will not work?

Tested new security patches on 8.2.

Network performance seems just fine. Have 4 Windows server 2019 and 2 Fedora Server VMs recording video feed. Haven't observed any difference in performance.

Supermicro SYS-1029U-TR4 with 768gig ram.
Network usage: about 400mbps constant.
ZFS