USB passthrough test reports in 7.5RC1

Aimdev

@fjen said in XCP-ng 7.5.0 Release Candidate:

@aimdev

Just wanted to chime in here and say that USB Passthrough is also non-functional for me. Can't pass through a USB Bluetooth dongle, even though I added an allow run to the usb-policy.conf file and it shows up fine in the CLI and XCP-ng Center.

Hi

Thanks for the info.

My /etc/xensource/usb-policy.conf contained a DENY for class 2 devices

DENY: vid=17e9 # All DisplayLink USB displays
#DENY: class=02 # Communications and CDC-Control
ALLOW: class=02 subclass=02 # Communications and CDC-Control
ALLOW:vid=056a pid=0315 class=03 # Wacom Intuos tablet
ALLOW:vid=056a pid=0314 class=03 # Wacom Intuos tablet
ALLOW:vid=056a pid=00fb class=03 # Wacom DTU tablet
DENY: class=03 subclass=01 prot=01 # HID Boot keyboards
DENY: class=03 subclass=01 prot=02 # HID Boot mice
DENY: class=0a # CDC-Data
DENY: class=0b # Smartcard
DENY: class=e0 # Wireless controller
DENY: class=ef subclass=04 # Miscellaneous network devices
ALLOW:vid=1546 pid=01a8 class=02 # Ublox
ALLOW: # Otherwise allow everything else

My device is a class 2 device.
Aug 2 06:02:38 localhost usb_scan.py DEBUG: UsbDevice: (u'3-2', {'idVendor': '1546', 'ID_VENDOR_FROM_DATABASE': u'U-Blox AG', 'bConfigurationValue': '1', 'bDeviceClass': '02', 'ID_MODEL_FROM_DATABASE': '', 'version': ' 1.10', 'idProduct': '01a8', 'bNumInterfaces': ' 2', 'serial': '', 'bcdDevice': '0301'})#012#011|__ UsbInterface: (u'3-2:1.0', {'bInterfaceNumber': '00', 'bInterfaceClass': '02', 'bInterfaceProtocol': '01', 'bInterfaceSubClass': '02'})#012#011|__ UsbInterface: (u'3-2:1.1', {'bInterfaceNumber': '01', 'bInterfaceClass': '0a', 'bInterfaceProtocol': 'ff', 'bInterfaceSubClass': '00'})

I commented out the DENY, added an ALLOW for class 2, added the line for the UBLOX, which basically is a serial
device (its a gps receiver I am going to use as the source for a time server)

Rebooted

The result of the /opt/xensource/libexec/usb_scan.py -d command does not show the UBLOX, only the UPS.

Not sure if I have got the configuration correct.
I looked at the citrix docs, but until the scan shows the device, I cannot proceed any further.
I will take a look at the usb_scan.py to try and determine the rules.

Thanks

Aimee

olivierlambert

@fjen If I try your procedure, I can't boot the VM when it's attached to the vUSB device. I got:

# xe vm-start uuid=71700117-2d3f-1d99-9d3f-a2e106ac701a 
The value given is invalid
field: platform:device-model when vm has VUSBs
value: undefined

What did I miss?

fjen

@olivierlambert

Actually, re-doing the procedure on a fresh VM, I actually got the same error... This doesn't happen with XCP-ng Center though.

I can resolve it though by specifying the platform:device-model parameter.

xe vm-param-set uuid=<uuid> platform:device-model=qemu-upstream-compat

olivierlambert

@fjen

So I tried USB passthrough with a simple USB stick, and it worked perfectly. The stick is passed to my Windows VM without any issue, from both XCP-ng 7.5 RC1 and XenServer 7.5

You can see the "Vates (E:)" USB key dislayed here:

VM is a Windows 2012 R2 64 Bits. Followed the xe CLI instruction with success.

fjen

@olivierlambert Ah thanks for the test! Guess the feature just doesn't play well with my Bluetooth dongle and mouse.

olivierlambert

I'll try tomorrow with a wireless dongle for keyboard/mouse.

fjen

@olivierlambert Thank you!

Aimdev

@aimdev

Update

I removed all the rules except the allow all in /etc/xensource/usb-policy.conf
The U-blox device was present when running /opt/xensource/libexec/usb_scan.py -d
The device is present when running xe pusb-list
The device is present using xcp-ng centre
The configuration file clearly has an issue for me to resolve.
Followed instructions from @fjen , thanks for your efforts.
got this on vm startup
The value given is invalid
field: platform:device-model when vm has VUSBs
value: qemu-trad

issued command
xe vm-param-set uuid=<uuid> platform:device-model=qemu-upstream-compat
Started vm
cat /dev/ttyACM0 present and seeing gps messages.

It appears the only way to get this to work is via the cli.

Doing a reboot test next, fingers crossed, yes ok

Thanks

Aimee

Aimdev

@aimdev said in USB passthrough test reports in 7.5RC1:

@aimdev

Update

I removed all the rules except the allow all in /etc/xensource/usb-policy.conf
The U-blox device was present when running /opt/xensource/libexec/usb_scan.py -d
The device is present when running xe pusb-list
The device is present using xcp-ng centre
The configuration file clearly has an issue for me to resolve.
Followed instructions from @fjen , thanks for your efforts.
got this on vm startup
The value given is invalid
field: platform:device-model when vm has VUSBs
value: qemu-trad

issued command
xe vm-param-set uuid=<uuid> platform:device-model=qemu-upstream-compat
Started vm
cat /dev/ttyACM0 present and seeing gps messages.

It appears the only way to get this to work is via the cli.

Doing a reboot test next, fingers crossed, yes ok

Thanks

Aimee

Hi

Didn't survive the 7.5 RC1 to 7.5 upgrade, had to re configure it.
All working ok.

Aimee

olivierlambert

Yes that's normal config file are changed

Jianghuaw

I met the same issue after upgrading my host to 7.5. The information at here is helpful. Thanks.

BTW I guess xcp-ng doesn't support vUSB hotplug. Is there anyone know if there is any plan to support hot plug/unplug? Maybe depend on Citrix's plan on XenServer? Is there any workaround to support that with qemu?

DustinB

@olivierlambert said in USB passthrough test reports in 7.5RC1:

@fjen

So I tried USB passthrough with a simple USB stick, and it worked perfectly. The stick is passed to my Windows VM without any issue, from both XCP-ng 7.5 RC1 and XenServer 7.5

You can see the "Vates (E:)" USB key dislayed here:

VM is a Windows 2012 R2 64 Bits. Followed the xe CLI instruction with success.

Just an odd question. . .

Is that USB device available to just this one VM or to every VM?

olivierlambert

Not an odd question You assign the USB device to one VM only. IDK if it's possible to assign it to multiple VMs, but it sounds unlikely!

DustinB

@olivierlambert the reason I ask is I recall considering this option back on XS6.5 and simply opt'd to not use USB devices any longer.

It was just more of a headache using USB than it was using network attached storage.

Now for USB license fobs etc it could be an issue, but I would get a USB to network adapter in that scenario.

olivierlambert

Back in 6.5, it was probably passing through the whole USB controller, which is different with USB passthrough on 7.5 (just release since this version), where you can pass one specific device without taking the whole USB controller

cowboy

First off, thanks to @Aimdev and @fjen for providing a good write up of the steps taken to get USB passthrough to work.

I followed them all pretty much with out any difficulty and with no errors on anything for a Broadcom Bluetooth USB card (Broadcom Corp._BCM2045B) that's built into my laptop I'd like to pass through to a Linux VM.

And I get all the way up to where the USB device is correctly presented in the XCP-ng Centre application, but the device doesn't [seem to] appear at the OS level in dmesg | grep usbcore or lusb outputs in my guest OS VM.

However, since I didn't any failure to start the vm or other errors, I had not executed the final command: xe vm-param-set uuid=<VM UUID> platform:device-model=qemu-upstream-compat

But since the Broadcom chip still didn't appear in the guest Linux VM, I shutdown the VM and then executed the above command with the VM UUID.

But after a restart, the VM still doesn't see the Broadcom USB device.

Any idea what could be up or suggestions where I need to dig?

xiaolou86

@fjen I also got the same error...

INTERNAL_ERROR(xenopsd internal error: Call to usb reset failed: Forkhelpers.Spawn_internal_error("usage: usb_reset.py attach [-h] -d DOMID -p PID [-r RESET_ONLY] device\nusb_reset.py attach: error: argument -r: expected one argument\n", "", _))

Adrian Fretwell

@xiaolou86 Did you find a resolution for this issue?

stormi

For future reference, github issue related to USB passthrough: https://github.com/xcp-ng/xcp/issues/108

AdrianFretwell created this issue in xcp-ng/xcp

closed Starting a VM with USB passthrough results in Internal Server Error #108

panixx

No luck with passing through a zwave usb dongle. Have tried two different types:
Aeon Labs Z-Stick Gen 5 (https://aeotec.com/z-wave-usb-stick)
Nortek GoControl HUSBZ-1 (http://www.gocontrol.com/detail.php?productId=5)

Tried both adding through XCP-NG Center and following the procedure above. I can see it added to the vm, but nothing shows in the guest (CentOS7 and Ubuntu Server 1604 and 1804).

This stick contains both an 02 device type and 0a, both CDC device types it appears.