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dinhngtu

Hello, this issue has been fixed in XAPI 26.1.19-1.1 available in the testing updates. For now you have to configure your VMs manually (https://docs.xcp-ng.org/troubleshooting/common-problems/#pci-passthrough-error-unsupported-msi-delivery-mode-7) but the fix will be activated by default in the future.

dinhngtu

@ovicz Which exact version of XAPI do you have? If you have 26.1.19-1.1 from testing, you should be able to fix it by setting hvm-pirq=false using the instructions here: https://docs.xcp-ng.org/troubleshooting/common-problems/#pci-passthrough-error-unsupported-msi-delivery-mode-7

dinhngtu

@ovicz Have you set platform:hvm-pirq=false on it? The disable-by-default behavior had to be reverted in the upstream fix because of an unforeseen regression.

dinhngtu

@flakpyro Note that various important Viridian settings are not yet settable via Xen Orchestra, so you might want to confirm using xe instead.

dinhngtu

@flakpyro These template updates only concern new "from scratch" VMs. Older VMs should not be impacted at all.

But if some of your VMs are missing Viridian settings, you may run into poor performance and/or odd Windows issues. You can correct them using the instructions documented here: https://docs.xcp-ng.org/vms/#enabling-viridian-extensions

dinhngtu

@ovicz I was wrong, it's already in testing. So you could simply install the testing updates for that.

dinhngtu

@ovicz xcp-ng-ndinh2 currently contains a newer xapi 26.1.19 with some other patches you don't need, so you shouldn't use that any more.

The hvm-pirq feature have been integrated into our xapi 26.1.19 package, now available in testing. You can install the testing packages and get that feature. now available in incoming. But that's very early and not yet tested. If you need something based on the latest testing packages instead, feel free to ask me and I'll build it into a different tag for you.

~~Note that you should only upgrade XAPI packages listed in the RPM commands given above. Don't upgrade anything else or you may end up taking something unexpected.~~

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