On 06/18/2012 11:52 AM, Jan Kiszka wrote: >> >> I don't understand how this works. A level IRQ isn't de-asserted by the >> EOI, it's de-asserted by its source. >> >> Consider the following sequence: >> >> device guest >> >> event >> assert >> interrupt >> interrupt handler >> handle event >> clear ISR bit >> deassert >> event >> assert >> EOI >> >> What should happen is that the interrupt will be redelivered >> immmediately after the EOI, but that won't happen with your API since >> the EOI ack notifier will deassert the interrupt and nothing will >> re-assert it. > > As it's level triggered and we unmask the physical source, another > host-side interrupt will be triggered and then reported to the guest.
That works for real devices. What about emulated devices (vhost, msi-less ivshmem clone)? -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
