bhyve, Windows guest and trim support

[Felix Palmen]

* Andrea Venturoli <ml at netfence.it> [20200714 09:53]:
> I applied the same patch and, still using virtio-blk, when trying to retrim,
> Windows says "Optimize-Volume : The volume optimization operation requested
> is not supported by the hardware backing the volume."

The reason is the same I accidentally started a defrag here: The windows
drivers are too old :)

It worked fine for me after upgrading to
https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/virtio-win-0.1.185-1/

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