simplify bhyve vatpit
The vATPIT emulation in bhyve carries a bunch of state in types that are too large and/or expansive for what they represent - using
int for booleans, for example. It would be nice to clean this logic up, and make it more readable so that it is easier to deal with for kernel device import/export during a live migration.
Updated by Patrick Mooney 6 months ago
I booted the normal array of guests for smoke-testing, while looking at the in-kernel data structures (via mdb -k) to observe PIT manipulations. Those guests booted and functioned normally. CentOS and OmniOS guests used the PIT early (for clock calibration), ignoring it for other time sources after that. Windows did not seem to touch it at all. OpenBSD continued to run the PIT after boot-up.
Updated by Electric Monk 6 months ago
- Status changed from In Progress to Closed
- % Done changed from 0 to 100
commit 8cbaa6a809af7f43b3da2420c9d29a3507893284 Author: Patrick Mooney <firstname.lastname@example.org> Date: 2022-02-23T21:40:30.000Z 14430 simplify bhyve vatpit Reviewed by: Dan Cross <email@example.com> Approved by: Rich Lowe <firstname.lastname@example.org>