https://pagure.io/fedora-qa/issue/818

[QA:Testcase_Boot_Methods_Xen_Para_Virt](https://fedoraproject.org/wiki/QA:Testcase_Boot_Methods_Xen_Para_Virt) is an optional testcase from https://fedoraproject.org/wiki/Template:Installation_test_matrix#Virtualization which doesn't seem to have anyone interested in providing results for it. The DomU criterion was dropped in Fedora 32 (changed to "Xen in EC2"):
https://fedoraproject.org/w/index.php?title=Fedora_32_Final_Release_Criteria&diff=prev&oldid=557560

Between F32 and 42 (i.e. in 5 years), it was tested exactly once - in F35 by pwhalen.

It seems that nobody cares about it enough so that we don't need to keep it around. Furthermore, since F32 Xen testing is covered by EC2 testing, so there even seems to be unnecessary duplication:
https://fedoraproject.org/wiki/Template:Cloud_test_matrix#x86_64

It doesn't bother me that much, the criterion can rot there forever, I'm just trying to clean it a little.

A little discussion from #quality Matrix:
> Fabio Valentini: I think the only ones who care about Xen are Qubes OS people ...
>
> marmarek: Yes, we do care about Xen, but in dom0 we have our Xen packages. We do care about domU support in Fedora, though. And we have tests for that, and we do test upcoming releases (usually we start testing new release shortly after mass rebuild)
> Would you like to have also some positive feedback (like "Xen domU in Qubes works with F43")? Or just lack of bug reports is enough?
>
> Kamil Páral: as somebody who has no experience or knowledge about xen, is there is a difference between Xen domU, and booting Cloud images through Xen in Amazon EC2? Or is the same code path tested?
>
> marmarek: Between EC2 and Qubes there are some differences, especially in how VM is booted (bootloader config etc), but there are also a lot of similarities, for example regarding storage and network. So, I'd say a test on Qubes shares ~50-60% of Xen-specific code with EC2. It's definitely not "if works on Qubes, will work on EC2" (or the other way around), but it is "if breaks on Qubes, will likely be broken on EC2".