All of lore.kernel.org
 help / color / mirror / Atom feed
From: linzhecheng <linzhecheng@huawei.com>
To: gerd hoffmann <kraxel@redhat.com>
Cc: CheneyLin <linzc@zju.edu.cn>,
	"wangxin (U)" <wangxinxin.wang@huawei.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] Some confusion about live migration of usb device
Date: Thu, 6 Sep 2018 12:10:08 +0000	[thread overview]
Message-ID: <D9DE8DBB19F2A24080482022C1DE758302CED55C@DGGEMM529-MBX.china.huawei.com> (raw)
In-Reply-To: <20180906120404.zuvf3kkgmzwkb6a3@sirius.home.kraxel.org>

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?  

> -----Original Message-----
> From: gerd hoffmann [mailto:kraxel@redhat.com]
> Sent: Thursday, September 06, 2018 8:04 PM
> To: linzhecheng <linzhecheng@huawei.com>
> Cc: CheneyLin <linzc@zju.edu.cn>; wangxin (U)
> <wangxinxin.wang@huawei.com>; qemu-devel@nongnu.org
> Subject: Re: Some confusion about live migration of usb device
> 
> On Thu, Sep 06, 2018 at 10:25:20AM +0000, linzhecheng wrote:
> > Hi, Gerd
> >
> > I'm going through relevant codes about live migration of usb devices,
> > it seems that we will not save/load USBpacket in any vmstate, so
> > pending usb packets will be lost after live migration, is it a
> > problem?
> 
> With usb-host or usb-redir?
> 
> cheers,
>   Gerd

  reply	other threads:[~2018-09-06 12:15 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-06 10:25 [Qemu-devel] Some confusion about live migration of usb device linzhecheng
2018-09-06 12:04 ` gerd hoffmann
2018-09-06 12:10   ` linzhecheng [this message]
2018-09-06 13:52     ` gerd hoffmann
2018-09-06 14:23       ` CheneyLin
2018-09-07  6:23         ` gerd hoffmann
2018-09-07  6:27           ` linzhecheng

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=D9DE8DBB19F2A24080482022C1DE758302CED55C@DGGEMM529-MBX.china.huawei.com \
    --to=linzhecheng@huawei.com \
    --cc=kraxel@redhat.com \
    --cc=linzc@zju.edu.cn \
    --cc=qemu-devel@nongnu.org \
    --cc=wangxinxin.wang@huawei.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.