https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277326

--- Comment #4 from Zhenlei Huang <z...@freebsd.org> ---
(In reply to Roger Pau Monné from comment #3)
> Hm, I guess I'm a bit confused.
While debugging PR 274810, I see the behavior, that FreeBSD guests report
HyperV rather than KVM when Hyper-V enlightenment is enabled.

> If the hypervisor is KVM, shouldn't it be detected as KVM rather than HyperV?
I think KVM should be reported. But it seems everything goes right even HyperV
is reported.

> What's the benefit of using the HyperV enlightenments when running on 
> QEMU/KVM?
I think Microsoft people are more familiar with that. When debugging PR 274810
I read briefly the design of Hyper-V virtual devices. I think the design is
pretty clear and performant.

I see lots of comparing of vm_guest in hyperv device drivers. I guess they
should be removed to correctly probe Hyper-V devices, to correctly support
Hyper-V enlightenment feature.

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