On Sun, 2010-07-11 at 21:14 +0300, Avi Kivity wrote: > On 07/11/2010 09:09 PM, Alex Williamson wrote: > > For device assignment, we need to know when the VM writes an end > > of interrupt to the APIC, which allows us to de-assert the interrupt > > line and clear the DisINTx bit. Add a new wrapper for ioapic > > generated interrupts with a callback on eoi and create an interface > > for drivers to be notified on eoi. > > > > You aren't going to get this with kvm's in-kernel irqchip, so we need a > new interface there.
Registering an eventfd for the eoi seems like a reasonable alternative. I also need to figure out how to avoid bouncing the vfio interrupt events through qemu, but it's a functional start. Thanks, Alex
