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

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Sep 19, 2012 at 04:53:33PM +0800, Qian Hu wrote:
>    Hi, everyone!
>    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". But, the mouse
>    could work, the keyboard and usb storage failed.
>

at least the usb storage is probably USB2 device, so it might have issues in 
usb1.1 mode..

Did you get any errors in qemu-dm logs (/var/log/xen/) ? or in dom0 linux 
dmesg? 


>    If I change the guest OS to winXP, it is surprising that only the usb
>    storage can be detected in the guest.
>    I have also tried the PVUSB, it didn't work either.
>

Did you actually install PVUSB drivers? in dom0 kernel you need xen-usbback 
driver,
and in the kernel of the VM you need xen-usbfront driver.

-- Pasi


>    I am confused and don't know how to resolve it.  Could anyone help me?
>    Great thanks!
>    huqian
> 
> References
> 
>    Visible links
>    1. http://wiki.xen.org/wiki/Xen_USB_Passthrough

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