On 2012-05-30 15:34, Michael S. Tsirkin wrote: > Below's as far as I got - hopefully this > explains what I had in mind: for deep hierarchies > this will save a bus scan so I think this makes sense > even in the absense of kvm irqchip. > > Warning: completely untested and known to be incomplete. > Please judge whether this is going in a direction that > is helpful for your efforts. If you respond in the positive, > I hope to be able to get back to this next week.
We need to - account for polarity changes along the route - get rid of irq_count as it is no longer updated in the fast path, thus useless on routing updates So it's a bit more complicated and requires a some broader refactorings. But there is likely some room for simplifications in the end, true. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux
