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Re: [Qemu-devel] Some confusion about live migration of usb device
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From: |
CheneyLin |
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Subject: |
Re: [Qemu-devel] Some confusion about live migration of usb device |
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Date: |
Thu, 6 Sep 2018 22:23:45 +0800 (GMT+08:00) |
> -----原始邮件-----
> 发件人: "gerd hoffmann" <address@hidden>
> 发送时间: 2018-09-06 21:52:23 (星期四)
> 收件人: linzhecheng <address@hidden>
> 抄送: "wangxin (U)" <address@hidden>, CheneyLin <address@hidden>,
> "address@hidden" <address@hidden>
> 主题: Re: [Qemu-devel] Some confusion about live migration of usb device
>
> On Thu, Sep 06, 2018 at 12:10:08PM +0000, linzhecheng wrote:
> > You had said that copying vmstate of usb-host is pointless, so just unpulg
> > and plug it after migration is all right,
> > but will other usb devices like usb-storage devices lose pending
> > USBPackets then?
>
> Ah, emulated usb devices. The usb host adapters will re-submit any
> unfinished usb transfers on the target machine.
You mean target vm usb controllers will re-submit them?
And what about usb-redir, btw?
>
> cheers,
> Gerd
>