CP15 support
Registered by
Michael Hope
CP15 support
Blueprint information
- Status:
- Complete
- Approver:
- Michael Hope
- Priority:
- Essential
- Drafter:
- Michael Hope
- Direction:
- Approved
- Assignee:
- Rusty Russell
- Definition:
- Approved
- Series goal:
- Accepted for trunk
- Implementation:
-
Implemented
- Milestone target:
- None
- Started by
- Michael Hope
- Completed by
- Peter Maydell
Related branches
Related bugs
Sprints
Whiteboard
[1] Marc: HSTR is deprecated ... Instead, we should only use HCR which should contain all the necessary bits. HSTR is viewed internally as "the workaround when everything else has failed...".
HSTR is still needed in some places.
[2] between the host and guest and indirectly guest to guest
[3] such as an ECC error while you're in HYP mode. Now panics which matches the host kernel
(?)
Work Items
Work items:
Audit for correct trapping including removing use of the HSTR[1]: DONE
Save and restore on world switch[2]: DONE
Userspace save/restore: DONE
HYP mode abort handlers[3]: DONE
Dependency tree
* Blueprints in grey have been implemented.
