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Re: [Xen-users] Passing USB controller via USB passthrough

from [Pasi Kärkkäinen]

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To:	Lawrence Ing <larry.xen@xxxxxxxx>
Subject:	Re: [Xen-users] Passing USB controller via USB passthrough
From:	Pasi Kärkkäinen <pasik@xxxxxx>
Date:	Fri, 26 Aug 2011 16:36:53 +0300
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On Thu, Aug 18, 2011 at 03:57:39PM -0700, Lawrence Ing wrote:
> I have a USB controller in a PCI slot on my xen host that I need to pass
> to a Windows HVM guest.  I successfully passed the device to the Windows
> guest, installed the driver for the controller, and tried to use the
> controller.  I am currently unable to use the controller.  The device
> has a little yellow exclamation point next to it in device manager as
> well as a device called "Xen pci device #0," which is only present when
> the usb controller is passed, and the USB controller says it is unable
> to start.  What can I do to resolve this?
> 
> 

http://wiki.xen.org/xenwiki/XenPCIpassthrough

read that wiki page and try various things:

- with and without pci resource alignment
- vpci and passthru modes


-- Pasi


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