Hello, I'm trying USB passthrough on x86 and ARM platforms. I've taken the USB frontend and backend code from
When I passthrough a certain USB device it shows up in the device list of Dom-u, I've verified this with "xl usb-list Dom-u". When I switch to Dom-u, this USB device does not show up instead a USB device with different address is showing up all the time. *************************** Dom-0 ****************************** root@salvator-x-xen-dom0:~# lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 005 Device 005: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Command "xl usbctrl-attach dom-u version=2 ports" is creating USB controller but with the following error. root@salvator-x-xen-dom0:~# xl usbctrl-attach dom-u version=2 ports=8 [ 2000.019717] rcar_gen3_thermal e61a8000.thermal: Can't register thermal zone [ 2000.026768] xen-pvusb: urb-ring-ref 0, conn-ring-ref 0, event-channel 7 [ 2000.033565] xen-pvusb: Dom3 provided bogus ring requests (0x720d0d0d - 0x0 = 1913457933). Halting ring processing on dev=0x0 [ 2000.034177] xen-pvusb: urb-ring-ref 0, conn-ring-ref 0, event-channel 7 libxl: error: libxl_device.c:1074:device_backend_callback: unable to add device with path /local/domain/0/backend/vusb/3/0 libxl: error: libxl.c:2009:device_addrm_aocomplete: unable to add vusb with id 0 libxl_device_usbctrl_add failed. root@salvator-x-xen-dom0:~# xl usbdev-attach Domain hostbus=5 hostaddr=5 [ 5024.235683] rroot@salvator-x-xen-dom0:~# car_gen3_thermal e61a8000.thermal: Can't register thermal zone root@salvator-x-xen-dom0:~# root@salvator-x-xen-dom0:~# root@salvator-x-xen-dom0:~# root@salvator-x-xen-dom0:~# xl usb-list dom-u Devid Type BE state usb-ver ports 0 pv 0 4 2 8 Port 1: Bus 005 Device 005 Port 2: Port 3: Port 4: Port 5: Port 6: Port 7: Port 8: root@salvator-x-xen-dom0:~# xl console 3 *************************** Dom-U ****************************** [ 3165.172553] vusb vusb-0: Xen USB2.0 Virtual Host Controller [ 3165.172588] vusb vusb-0: new USB bus registered, assigned bus number 1 [ 3165.173363] hub 1-0:1.0: USB hub found [ 3165.173401] hub 1-0:1.0: 8 ports detected root@salvator-x-xen-dom0:~# lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I'm not sure why a different USB device is getting attached to domain U. Any help is really appreciated. Kernel version: 4.6 Xen version: 4.8 Thanks.
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