Re: BHYVE_SNAPSHOT

On Tue, May 2, 2023 at 3:00 AM Vitaliy Gusev <gusev.vitaliy@gmail.com>
wrote:

> Just add some plans for me:
>
>  1. Describe snapshot file format: One file for snapshot.
>
>  2. Implement snapshot/resume via nvlist.
>
>    *nvlist* implementation brings:
>
>
>    - Versioning
>    - Easy debugging, getting saved values, etc.
>    - Validate restored variables: types, sized, etc.
>    - Add optional variables without breaking backward compatibility
>    (resume can be performed with old snapshots)
>    - Remove variables without breaking backward compatibility
>    - Use one file for snapshot
>    - Improve restore command line:  "bhyve -r $snapshot”, i.e. w/o
>    additional arguments
>
>
Do you plan on saving the guest memory into the nvlist? If I have VM with 8
gigs of memory, will the nvlist implementation allocate 8 gigs of memory
for the nvlist then write it out to disk? Or..?

All the bullet points look good to me.

-Rob