Re: [Xen-devel] usbpassthrough of xen-4.1.2 update

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Sep 25, 2012 at 11:17:03AM +0800, Qian Hu wrote:
>    Hi, everyone! The same question with updated message.
>    I am working on the USB passthrough of Xen-4.1.2. My host OS  is Fedora 14
>    and the guest OS is win7.
>    According to the wiki
>    page([1]http://wiki.xen.org/wiki/Xen_USB_Passthrough),
>    xen supports passthrough of usb device from dom0 to guests. I have tried
>    the Xen HVM guest qemu-dm usb1.1 emulation,
>    by specifying "usb = 1" and "usbdevice = host:xxxx:yyyy". I have also
>    tried the command usb_add host:xxxx:yyyy.
>    But, the mouse could work, the keyboard didn't, and the usb storage
>    device(usb 2.0) appeared in the device manager.
>    While the driver is OK, it couldn't start. I can only find the message
>     "The device cannot start(code 10)".
>    I doubt there may be something wrong with the guest OS driver, which is
>    not said to be needed.
>    I am confused and don't know how to resolve it.  Could anyone help me?
>

It might be a bug in the USB emulation code in the old qemu-dm traditional.

Any errors in:
- "dmesg" output? 
- /var/log/xen/qemu-dm* (for the windows vm).
- "xm dmesg" output ? 


-- Pasi


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