@xcp-ng-justgreat I have checked here, https://wiki.xenproject.org/wiki/Nested_Virtualization_in_Xen
But I can't really figure out where to set the options,
hap=1 nestedhvm=1 cpuid = ['0x1:ecx=0xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx']
I have set theese variables on the VM under vm-param platform and other-config. But that does not help.
I have also disabled the CFG on the VM, still no luck though.