@ovicz xapi-26.1.16-1.1.0.pirq.2.xcpng8.3 is now available on xcp-ng-ndinh2, which disables HVM PIRQ for all existing VMs by default on reboot. Please try it out.
I've prepared an upstream PR for this feature. If you'd like to be listed as a tester, please respond with your name and email address (or your fake github email if you prefer) and I'll update my commit with your credit.
@archw Which AV is causing the warning, can you report it as a false positive?
We have been working on a version of the emulex-lpfc RPM package that would support both old and new hardware (the work-in-progress documentation can be found at https://github.com/xcp-ng/xcp-ng-org/pull/518), and we would really appreciate your help testing the installation ISO or the updated RPMs to make sure it works as expected on your hosts.
The new (testing) ISO can be found here
The updated RPM can be pulled directly from here (to update the driver on an already installed XCP-ng host):.
The new RPM bundles two different versions of the lpfc kernel module, lpfc.ko handles the Emulex Fiber Chanell adapters that were already supported while a lpfc14.ko handles the newer generations.
Whether you are running an older generation Fiber Chanel Adapter or a more recent one, it would be great to get confirmation it works for your use case!
Any remarks on the documentation PR is welcome too!
@clip This often happens with Driver Verifier enabled, what do verifier /querysettings and verifier /query say?
@ovicz Thanks for testing. Is everything working without the pci=nomsi or GRUB command line tweaks? We'll work to integrate this fix into a future update.
@ovicz Are you up for a test package with a fix? Note that the fix is not yet tested nor supported at the moment.
Add user repos using this command:
yum-config-manager --add-repo https://koji.xcp-ng.org/repos/user/8/8.3/xcpng-users.repo
To know what you need to upgrade, run this command (as xcp-ng-ndinh2 contains some changes that you don't need):
rpm -qa --qf '%{NAME}\t%{SOURCERPM}\n' | grep $'\txapi'
Then upgrade just the XAPI-related packages:
yum update --enablerepo=xcp-ng-ndinh2 <list of packages from above>
Remember to reboot the host after installing.
Finally, disable hvm-pirq on your affected VM and reboot it (parameter name subject to change):
xe vm-param-set uuid=... platform:hvm-pirq=false
To go back, list what you installed and downgrade them:
yum list installed | grep ndinh
yum downgrade ...
Intel needs some special handling to support physical displays with PCI Passthrough; I don't know much of the details, but on "recent" machines, some bits are missing according to :
https://lore.kernel.org/all/20260802050824.10554-1-brchuckz@aol.com/
