trying to usb passthru joystick

[almiller]

I have ProxMox 7.2 on a Dell PowerEdge R710 and I'm trying to passthru
a USB1 device to my Debian 11 VM.

I was able to assign a USB2 camera but the joystick is not showing up on the VM.

On proxmox this is the device I want to assign to vm 104.

root@pve ~ # usb-devices |less
T:  Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#=  4 Spd=1.5 MxCh= 0
D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0079 ProdID=0006 Rev=01.07
S:  Manufacturer=DragonRise inc.
S:  Product=Generic   USB  Joystick
C:  #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 2 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid

I tried both ways:

root@pve ~ # qm set 104 -usb1 host=0079:0006
update VM 104: -usb1 host=0079:0006

AND

root@pve ~ # qm monitor 104
Entering Qemu Monitor for VM 104 - type 'help' for help
qm> device_add usb-host,vendorid=0x0079,productid=0x006,id=usb1

and then rebooted my VM each time but I still don't see the joystick device.

>cvm104 #  lsusb
Bus 002 Device 002: ID 32e4:4689 HD USB Camera HD USB Camera
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

 

[shrdlicka]

Hi,

can you post your VM config

qm config 104

 

[almiller]

Sure.

root@pve ~ # qm config 104
boot: order=scsi0;ide2;net0
cores: 6
cpu: kvm64
ide2: local:iso/debian-11.4.0-amd64-DVD-1.iso,media=cdrom
memory: 65536
name: debi11
net0: virtio=62:91:F6:25:A2:6F,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: l26
scsi0: local-lvm:vm-104-disk-0,size=32G
scsihw: virtio-scsi-pci
smbios1: uuid=2eaa8e4e-9221-48d4-82b4-56f0535aa2d8
sockets: 2
usb0: host=32e4:4689
usb1: host=0079:0006
vmgenid: a55f0503-1296-42bf-97f4-4a3e3870ce34

 

[shrdlicka]

Can you try only using pass-through for the keyboard without the webcam?

 

[almiller]

FYI: I added a different device and it's recognized along side the camera.

root@pve ~ # qm set 104 -usb2 host=0909:0050
update VM 104: -usb2 host=0909:0050

root@pve ~ # qm config 104 |grep usb
usb0: host=32e4:4689
usb1: host=0079:0006
usb2: host=0909:0050

❯ lsusb
Bus 002 Device 002: ID 32e4:4689 HD USB Camera HD USB Camera
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

 

[almiller]

Oh, I see 0909:0050 was NOT recognized.

I removed them all, rebooted. Then did this:

the VM before assignments:

❯ lsusb
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

assigned the device from PVE

root@pve ~ # qm monitor 104
Entering Qemu Monitor for VM 104 - type 'help' for help
qm> device_add usb-host,vendorid=0x0079,productid=0x006,id=usb0

the VM after assignment:

❯ lsusb
Bus 001 Device 003: ID 0409:55aa NEC Corp. Hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

 

[almiller]

Seems wierd, a different device shows up? What is 0409:55aa?

So I removed all usb devices again, rebooted.

After reboot

❯ lsusb
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Then added this one

root@pve ~ # qm monitor 104
Entering Qemu Monitor for VM 104 - type 'help' for help
qm> device_add usb-host,vendorid=0x0909,productid=0x0050,id=usb1

After assignment

❯ lsusb
Bus 001 Device 004: ID 0909:0050 Audio-Technica Corp. ATR4697-USB
Bus 001 Device 003: ID 0409:55aa NEC Corp. Hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

This time the correct device showed up BUT ALSO the NEC 0409:55aa device?

 

[almiller]

Another attempt. Removed all usb devices.

Assigned all 3 via the GUI via the port option

After reboot 2 of the 3 are visible but not the joystick

❯ lsusb
Bus 002 Device 003: ID 32e4:4689 HD USB Camera HD USB Camera
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0909:0050 Audio-Technica Corp. ATR4697-USB
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

 

[shrdlicka]

What you could try if you have an USB hub, hand over the port that the USB Hub is connected to and see if this helps.

What I know of USB handover is that it is not that performant (aka more CPU intensive). Some recommend a PCIe passthrough of the USB controller to the VM.

 

[leesteken]

Note that you cannot passthrough an entire USB hub. You can only passthrough a port on the USB hub, or each port separately. Sometimes adding a hub in between the host and the device can improve stability (especially then the hub has external power). I
have also noticeD that some (cheap) USB gamepads don't work with some type of USB controllers, or keep disconnecting and reconnecting. Using a hub can also help because it might have a different USB controller chip than the motherboard.

 

[almiller]

I decided to toss the usb1.0 joystick into my cheap-hardware-junk-from-amazon pile.
After plugging the device into a "real" machine, I noticed it kept constantly connecting/disconnecting.

In the meantime I put a PCIe x4 USB3 card in my server and was able to passthrough the whole PCIe card to my VM.

root@pve ~ # dmesg | grep 'remapping'
[    1.219434] DMAR-IR: This system BIOS has enabled interrupt remapping
               interrupt remapping is being disabled.  Please
              
root@pve ~ # cat /etc/modprobe.d/iommu_unsafe_interrupts.conf
options vfio_iommu_type1 allow_unsafe_interrupts=1

root@pve ~ # lsmod |grep vfio
vfio_pci               16384  1
vfio_pci_core          73728  1 vfio_pci
vfio_virqfd            16384  1 vfio_pci_core
vfio_iommu_type1       40960  1
vfio                   45056  5 vfio_pci_core,vfio_iommu_type1
irqbypass              16384  50 vfio_pci_core,kvm

On the Proxmox server I don't see the usb devices at all but I've assigned the pci card to the VM

root@pve ~ # lsusb
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 002: ID 0624:0248 Avocent Corp. Virtual Hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0424:2514 Microchip Technology, Inc. (formerly SMSC) USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

root@pve ~ # lspci |grep Renesas
04:00.0 USB controller: Renesas Technology Corp. uPD720201 USB 3.0 Host Controller (rev 03)

root@pve ~ # qm config 104
agent: 1
audio0: device=ich9-intel-hda,driver=spice
boot: order=scsi0;ide2;net0
cores: 6
cpu: kvm64
hostpci0: 0000:04:00.0
ide2: local:iso/debian-11.4.0-amd64-DVD-1.iso,media=cdrom
memory: 65536
name: debi11
net0: virtio=62:91:F6:25:A2:6F,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: l26
scsi0: local-lvm:vm-104-disk-0,size=32G
scsihw: virtio-scsi-pci
smbios1: uuid=2eaa8e4e-9221-48d4-82b4-56f0535aa2d8
sockets: 2
vmgenid: a55f0503-1296-42bf-97f4-4a3e3870ce34

On the VM I see the PCI card and the 2 USB devices Camera and Microphone

❯ lspci |grep Renesas
00:10.0 USB controller: Renesas Technology Corp. uPD720201 USB 3.0 Host Controller (rev 03)

❯ lsusb
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 0909:0050 Audio-Technica Corp. ATR4697-USB
Bus 002 Device 003: ID 32e4:4689 HD USB Camera HD USB Camera
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub