[libvirt] [PATCHv2 4/4] qemu: Implement shared memory device hot-unplug

[John Ferlan]

[...]

>>> +    if (rc < 0)
>>> +        return -1;
>>> +
>> I know this is a copy of the RemoveRNGDevice; however, this code doesn't
>> remove an 'obj'. In fact, if !shmem->server.enabled, then we don't enter
>> the monitor at all.
>>
>> Thus the following event probably won't happen...
> 
> I am not sure what your mean is ... i guess your mean the device remove
> event we get from qmp monitor won't happen ? we will get that event if
> qemu remove shmem device success, it should always happen if qemu really
> remove it and there is no bugs on qemu :)
> 

While reviewing I got lazy and didn't check the non hotplug case to how
shmem is added to the vm, but the point I was trying to make is that "if
(shmem->server.enabled)" fails (e.g. is false), then there is no "rc =
qemuMonitorDelObject(priv->mon, objAlias);" call in this API (similar to
RNG code), thus how does the following event get triggered?  Even if the
condition was true, does detaching the char dev cause the event to be
triggered?

I thought the event was related to the DelObject code, but I didn't go
follow that code

John

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