The exact meaning of DEVICE_REMOVED event

[Peter Krempa]

On Tue, Oct 26, 2021 at 15:13:22 +0800, Han Han wrote:
> Hi, developers
> I has a question about the event VIR_DOMAIN_EVENT_ID_DEVICE_REMOVED. When
> will it occur? Detach device from an active VM? Or an inactive VM? Or both?
> I get a code comment from the callback of this event
> https://gitlab.com/libvirt/libvirt/-/blob/master/include/libvirt/libvirt-domain.h#L4151
> "This callback occurs when a device is removed from the domain"
> 
> But it is not clear the domain could be active or inactive or both.

The wording is indeed a bit confusing. At this point the callback is
emitted only when the VM is running and only when the guest OS
cooperates with the device removal.