Blasiantech Posted January 30, 2015 Share Posted January 30, 2015 My lsusb result is as follows : Bus 003 Device 003: ID 058f:6387 Alcor Micro Corp. Flash Drive Bus 003 Device 002: ID 046d:c31c Logitech, Inc. Keyboard K120 for Business Bus 003 Device 004: ID 413c:2501 Dell Computer Corp. Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I tried adding <hostdev mode='subsystem' type='usb'> <source> <vendor id='0x413c'/> <product id='0x2501'/> </source> </hostdev> Edit : The entry disappear as soon as saved it. Scenario 2 : I tried creating a new vm and add any usb device and i get "Error: internal error: cannot parse vendor id 0x 003 Devi" At the moment the kvm runs but i have no usb devices attached to it, thus no means of control. I have gigabyte h87n-wifi motherboard. According to the manual i have 6 x usb 3.0 and 4 x usb 2.0/1.1 ports. However when i tried all the ports at the back, it all connects to bus 3. I find this strange indeed. Hence i cannot do usb passthrough even if i wanted to. I would appreciate some workarounds. Thanks Quote Link to comment
reluctantflux Posted January 30, 2015 Share Posted January 30, 2015 Make sure the device isn't being used by another running VM. Also, make sure that it doesn't have old bus/host information in there. It shouldn't have any bus/host info, as it will create that at startup. Quote Link to comment
Blasiantech Posted January 30, 2015 Author Share Posted January 30, 2015 Anyway this is my xml <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> <name>windows81nvidia</name> <uuid>cc411d70-4463-4db7-bf36-d364c0cdaa8b</uuid> <memory unit='KiB'>4194304</memory> <currentMemory unit='KiB'>3906252</currentMemory> <vcpu placement='static'>2</vcpu> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64' machine='pc-q35-2.1'>hvm</type> <loader>/usr/share/qemu/bios-256k.bin</loader> <boot dev='hd'/> <bootmenu enable='yes'/> </os> <features> <acpi/> <apic/> <pae/> <kvm> <hidden state='on'/> </kvm> </features> <cpu mode='host-passthrough'> </cpu> <clock offset='localtime'> <timer name='rtc' tickpolicy='catchup'/> <timer name='pit' tickpolicy='delay'/> <timer name='hpet' present='yes'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <pm> <suspend-to-mem enabled='no'/> <suspend-to-disk enabled='no'/> </pm> <devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none' io='native'/> <source file='/mnt/disk1/vm_images/win81nvidia.qcow2'/> <target dev='hda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x02' slot='0x04' function='0x0'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/mnt/disk1/vm_images/installer/Windows8.1.iso'/> <target dev='hda' bus='sata'/> <readonly/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/mnt/disk1/vm_images/installer/virtio-win-0.1-100.iso'/> <target dev='hdd' bus='sata'/> <readonly/> <address type='drive' controller='0' bus='0' target='0' unit='3'/> </disk> <controller type='pci' index='0' model='pcie-root'/> <controller type='pci' index='1' model='dmi-to-pci-bridge'> <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/> </controller> <controller type='pci' index='2' model='pci-bridge'> <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/> </controller> <controller type='sata' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/> </controller> <controller type='virtio-serial' index='0'> <address type='pci' domain='0x0000' bus='0x02' slot='0x02' function='0x0'/> </controller> <controller type='usb' index='0' model='ich9-ehci1'> <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x7'/> </controller> <controller type='usb' index='0' model='ich9-uhci1'> <master startport='0'/> <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0' multifunction='on'/> </controller> <controller type='usb' index='0' model='ich9-uhci2'> <master startport='2'/> <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x1'/> </controller> <controller type='usb' index='0' model='ich9-uhci3'> <master startport='4'/> <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x2'/> </controller> <interface type='bridge'> <mac address='52:54:00:46:29:be'/> <source bridge='br0'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/> </interface> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x02' slot='0x05' function='0x0'/> </memballoon> </devices> <qemu:commandline> <qemu:arg value='-device'/> <qemu:arg value='ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1'/> <qemu:arg value='-device'/> <qemu:arg value='vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on'/> <qemu:arg value='-device'/> <qemu:arg value='vfio-pci,host=01:00.1,bus=pcie.0'/> </qemu:commandline> </domain> Quote Link to comment
reluctantflux Posted January 30, 2015 Share Posted January 30, 2015 What happens when you manually add the following to your xml when the VM is off? <hostdev mode='subsystem' type='usb'> <source> <vendor id='0x413c'/> <product id='0x2501'/> </source> </hostdev> Quote Link to comment
Blasiantech Posted January 30, 2015 Author Share Posted January 30, 2015 I cannot add it. The new entry will disappear. Quote Link to comment
reluctantflux Posted January 30, 2015 Share Posted January 30, 2015 Try this: <hostdev mode='subsystem' type='usb' managed='no'> <source> <vendor id='0x413c'/> <product id='0x2501'/> </source> </hostdev> Where are you placing it? It should be within the <devices> </devices> headers. Quote Link to comment
Blasiantech Posted January 30, 2015 Author Share Posted January 30, 2015 Thanks . I think that did it Quote Link to comment
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