[Bug 292686] bhyve fails to build with WITH_BHYVE_SNAPSHOT=yes on arm64

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292686

mgrooms@shrew.net changed:

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--- Comment #5 from mgrooms@shrew.net ---
Perhaps the FreeBSD Foundation can allocate resources to help review and
potentially support the work being done here ...

https://reviews.freebsd.org/D51555

It's my understanding that Hans Rosenfeld is attempting to backport a subset of
patches from IllumOS to FreeBSD bhyve related to snapshot and migration
support. The bhyve code in IllumOS has matured far past FreeBSD in this regard.
His stated goals here are to reduce differences between the two platforms,
mature the feature set and potentially make them interoperate ( ie. support
migration between the IllumOS & FreeBSD ).

The CPUID feature work referenced above is foundational to solving issues
relate to the snapshot and migration features that IllumOS has already sorted.
Unfortunately it seems that his work is stalled waiting on review.

For more info, please see his presentation at bhyvecon 2025 ...

https://www.youtube.com/watch?v=DPafGgfWaJU&list=PLkIW-zZY-vLHwsS6R87yDp9DDtvAF9tfN&index=10


The bhyve hypervisor tech really needs to be pushed forward. Not much runs on
physical hardware these days. What does is mostly to support virtualized guest
work. When very capable folks like Hans step up to do heavy lifting, I hate to
see it die on the vine.

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