- Fix annotations
- Don't use KiServiceExit to return to the caller with an error code, instead just return from the function, that is the same thing.
- Refactor failure path
- Add DPRINTs on failure
- Implement KiExceptionExit, which works like KiServiceExit2, but takes an exception frame as 2nd parameter
- Add a local exception frame to NtRaiseException and NtContinue, which is needed to exit with a full context on x64 and arm
- Use KeContextToTrapFrame again instead of KiSetTrapContext, since we have a proper exception frame now.