On Mon, Aug 24, 2009 at 09:19:05PM +0300, Gleb Natapov wrote: > > > It is obviously wrong thing to do from assigned devices POV. > > > > Thats not entirely clear to me. So what happens if a guest with PIC > > assigned device resets with a pending IRR? The host interrupt line will > > be kept disabled, even though the guest is able to process further > > interrupts? > The host interrupt line will be enabled (assigned device ack notifier > does this) without clearing interrupt condition in assigned device > (guest hasn't acked irq so how can we be sure it ran device's irq > handler?). Host will hang. > Actually, on the second thought, it will not hang. Next time host interrupt handler runs it will disable interrupt once again. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
