> From: Paolo Bonzini [mailto:pbonz...@redhat.com] > On 04/12/2014 12:02, Pavel Dovgaluk wrote: > >> > Why do you need to do this if !cpu_can_do_io(cpu)? > > We save number of executed instruction when saving interrupt or exception > > event. > > It leads to the call of cpu_get_instructions_counter() from cpu_exec > > function > > (through several replay functions). It is correct (because no block is > > executing > > at that moment) but is different to prior usage of icount requests. > > Why is !cpu_can_do_io(cpu) if no block is executing?
Because it returns cpu->can_do_io which is equal to zero at that moment. Pavel Dovgalyuk
