[Qemu-devel] [Question] How can we confirm hot-plug disk succesfully?

[Xie Changlong]

Hi all

In device hot-remove scenario, if we don't probe acpiphp module on the 
guest, 'device_del' will never emit DEVICE_DELETED event(because guest 
will not write to __EJ0) . So we can confirm that hot-remove failed. But 
IIUC, there is no event such as DEVICE_ADDED, so
1) How can we confirm hotplug('device_add') successfully?
2) It seems when hot-plug disk, we don't care acpiphp module status on 
the guest, am I right?
3) Why there is no DEVICE_ADDED like event?

Any answer would be appreciated, thanks.

--
Thanks
    -Xie