From: "Pasi Kärkkäinen" <pasik@iki.fi>
To: merc1984@f-m.fm
Cc: Xen-devel@lists.xen.org
Subject: Re: Bug: USB Bridge Will Not PassThru
Date: Wed, 18 Jun 2014 18:47:20 +0300 [thread overview]
Message-ID: <20140618154720.GD18930@reaktio.net> (raw)
In-Reply-To: <1403105326.24953.130218681.5D1F239F@webmail.messagingengine.com>
On Wed, Jun 18, 2014 at 08:28:46AM -0700, merc1984@f-m.fm wrote:
>
> USB2 is not possible with qemu-traditional.
>
> You've have to use PVUSB, which has USB2 support, if you have the
> drivers.
>
>
> So a USB2 hardware device is still emulated in the domU, even when
> passed-thru? It's not passing through the hardware? (like it seems it
> should)
>
USB passthru to an HVM guest Qemu emulated USB controller means Qemu emulation, yes.
And like said qemu-traditional only emulates USB 1.1 controllers/devices.
PVUSB is another option, it supports passthru of USB2 devices,
but it requires special drivers in both dom0 and guest kernel.
-- Pasi
next prev parent reply other threads:[~2014-06-18 15:47 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-18 6:00 Bug: USB Bridge Will Not PassThru merc1984
2014-06-18 6:48 ` Pasi Kärkkäinen
2014-06-18 13:45 ` merc1984
2014-06-18 14:10 ` Pasi Kärkkäinen
2014-06-18 15:28 ` merc1984
2014-06-18 15:47 ` Pasi Kärkkäinen [this message]
2014-06-18 16:26 ` merc1984
2014-06-18 17:22 ` Pasi Kärkkäinen
2014-06-18 17:55 ` Pasi Kärkkäinen
2014-06-18 18:13 ` merc1984
2014-06-18 19:02 ` merc1984
2014-06-18 20:30 ` merc1984
2014-06-18 11:34 ` George Dunlap
2014-06-18 15:17 ` merc1984
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