[jggimi]

OpenBSD's vmm(4) is functional and useful, and still a work-in-progress. My opinions follow.

(Disclaimer: they are just opinions, unburdened by actual knowledge.)

• AMD virtualization is on the development roadmap.
• The newly developed switch(4) is likely to replace bridge(4) over time, as it does not need to carry the weight of legacy connectivity that bridge() bears, and that permits the flexibility to add new capabilities such as its OpenFlow SDN features.
• The initial commits included configuration controls for multiprocessor guests, with a functional limit of 1 CPU. The controls were removed during development, and all guests today are uniprocessor. But the logic for multiprocessors remains, so I would not be surprised to see multiprocessor guests in the future.
• I understand it is not a priority, but I would not be astonished if other virtio(4)-capable operating systems with ELF kernels (such as FreeBSD or NetBSD) could be operated as guests in the future.