Re: [PATCH] virtio: disable ioeventfd for record/replay

[Paolo Bonzini]

On 11/02/21 09:58, Alex Bennée wrote:
> > virtio devices support separate iothreads waiting for
> > events from file descriptors. These are asynchronous
> > events that can't be recorded and replayed, therefore
> > this patch disables ioeventfd for all devices when
> > record or replay is enabled.
> Does it always have to be the case? Can a virtio device forgo iothreads
> and poll events from the main loop?

Yes and in fact it's the default, but ioeventfd has the same issue I 
think even if the polling happens from the main thread.

Paolo