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
