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Re: [Xen-devel] Re: usb in hvm domU

  • To: Henning Sprang <henning_sprang@xxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Thu, 15 Feb 2007 23:53:37 +0000
  • Cc: Xen devel list <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Thu, 15 Feb 2007 15:53:01 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcdRXIJnwRuPXr1PEduQdwAWy6hiGQ==
  • Thread-topic: [Xen-devel] Re: usb in hvm domU

On 15/2/07 20:28, "Henning Sprang" <henning_sprang@xxxxxx> wrote:

>> It would make it slower to access,
> Like when using an usb 1.0 stick on an usb 2.0 port, or the other way round?

I'm not sure you can tell the difference, but 2.0 device on a 1.0 port I

>> but shouldn't noticeably slow down your
>> boot time. It sounds more like there are issues with USB pass-through.
> It seems, it's not just a bit "slowed down" but basically unusable.
> I'm going to file a bug then. Do you need additional information? (can
> take a while until I can further gather this info, I'm  a bit too
> loaded currently).

Just what you tried to do and the resulting problem is probably fine for
now. We'd ask for more info if it is difficult to reproduce.

It may also be worth trying to repro with plain qemu (most recent possible
version). It may well be an issue we have in common with upstream qemu.

 -- Keir

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