>
> Sounds really frightening... this glue code is a real breeding ground
> for subtle bugs and merge problems.
...and that's why we are more than late with unifying it into a single
code base.
After that upcoming cleanup round we will have three major remaining to-dos:
- in-kernel irqchip and PIT support with the subtopics
- VAPIC/TPR-patching support
- IRQ routing
- PCI device assignment
- VCPU& IO-thread execution model
While I'm not that concerned about the first two as they basically add
code that "just" needs to be refactored, the last one is worrying me. We
need to find a smart way to morph one into the other. The code is full
of subtle differences and is likely quite performance sensitive.