Hi Gerd,
Thank you very much for your reply, it's very useful!
Regards,
-Gonglei
> -Original Message-
> From: Gerd Hoffmann [mailto:kra...@redhat.com]
> Sent: Monday, September 05, 2016 4:58 PM
> To: wangxin (U)
> Cc: qemu-devel@nongnu.org; fuweiwei (C); Gonglei (Arei)
> Subject: Re: question with usb stick host pass-through do ejection in guest
>
> Hi,
>
> > It appears that "eject" the stick in the guest may also actually eject it on
> > the host,
>
> Yes, that is the case.
>
> > which however, is not rational.
>
> Why? I see the same behavior on physical machines. If I want to use a
> usb stick after ejecting it I have to unplug and re-plug it.
>
> > Could you tell me the root cause
> > of the problem and some proposals to evade the scenario？ Thanks.
>
> Well, the guest owns the device. When the guest sends a eject command
> it will be forwarded to the device like any other request issued by the
> guest ...
>
> cheers,
> Gerd
