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

[Qian Hu <qianhu2011@xxxxxxxxx>]

I am sorry what does the re-assign mean? By the way, where can I find the ID C408 0040?

It seems not to be the message listed by "lsusb".

Below is my config file, similar with yours.

import os, re

arch = os.uname()[4]

if re.search('64', arch):

   arch_libdir = 'lib64'

else:

  arch_libdir = 'lib'

name = "win7"

builder = "hvm"

memory = "1024"

disk = [ 'file:/root/win7.img,hda,w',

#         'file:/mnt/win7.iso,hdc:cdrom,r',

        ]

vif = [ 'type=ioemu, mac=00:16:3e:3f:74:01 , bridge=eth0  ,model=e1000', ]

uuid = "11111111-2262-28d2-9b64-b11713adfb20"

device_model = "/home/root1/xen/xen-4.1.2/tools/ioemu-dir/i386-dm/qemu-dm"

kernel = "/usr/lib/xen/boot/hvmloader"

vnc=1

vnclisten="0.0.0.0"

vncdisplay=0

apic=1

acpi=1

pae=1

boot="dc"

vcpus=2

serial = "pty"

>

>

dhcp='off'

stdvga=0

audio=1

soundhw='es1370'

videoram=16

usb=1

usb_add='host:0204:6025'

usbdevice='tablet'

2012/9/25 Konrad Rzeszutek Wilk <konrad@xxxxxxxxxx>

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(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.

Do you also re-assign the device from the Linux kernel? Like this:

(the C408 0040 is my mouse).

 cd /sys/bus/usb/drivers/usbhid
 for a in `ls -1 | grep :`
 do
   for DEV in C408 0040
   do
        grep $DEV $a/modalias
        if [ $? -eq 0 ]; then
                echo "Unbinding $a for $DEV"
                echo $a > unbind
        fi
   done
 done

This is what the config file looks for me:
builder='hvm'
memory = 2048
name = "Windows7"
vcpus=3
disk = [ 'phy:/dev/vg_guest/Win7_Home,hda,w']
vnc=1
videoram=8
vnclisten="0.0.0.0"
vncpasswd=''
stdvga=0
serial='pty'
tsc_mode=0
usb=1
usb_add="host:045e:0040"
usbdevice='tablet'
xen_platform_pci=1
# Remember QEMU_AUDIO_DRV=pa
soundhw='es1370'
pci=['01:00.0','01:00.1','02:00.0']

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