On Wed, Jan 11, 2023 at 02:41:58PM +0000, David Woodhouse wrote: > This allows drivers to register a callback on a qemu_irq, which is > invoked when a level-triggered IRQ is acked on the irqchip. > > This allows us to simulate level-triggered interrupts more efficiently, > by resampling the state of the interrupt only when it actually matters.
I think we tried this with vfio and had to give up on this. I don't remember the details though. Alex probably does?
