From: Gerd Hoffmann <kraxel@redhat.com>
To: "wangxin (U)" <wangxinxin.wang@huawei.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"fuweiwei (C)" <fuweiwei2@huawei.com>,
"Gonglei (Arei)" <arei.gonglei@huawei.com>
Subject: Re: [Qemu-devel] question with usb stick host pass-through do ejection in guest
Date: Mon, 05 Sep 2016 10:57:47 +0200 [thread overview]
Message-ID: <1473065867.9260.5.camel@redhat.com> (raw)
In-Reply-To: <8ADDA2EB7601DA429B6B2A43EF4620A531F79551@szxeml556-mbs.china.huawei.com>
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
next prev parent reply other threads:[~2016-09-05 8:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-30 12:36 [Qemu-devel] question with usb stick host pass-through do ejection in guest wangxin (U)
2016-09-05 8:57 ` Gerd Hoffmann [this message]
2016-09-05 9:38 ` Gonglei (Arei)
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