Bug 1025743
| Summary: | USB tablet device does't work when USB bus is defined as EHCI (instead of the default one) | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Juan Rodriguez <jrodrigu> | ||||
| Component: | qemu-kvm | Assignee: | Virtualization Maintenance <virt-maint> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | Virtualization Bugs <virt-bugs> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 6.4 | CC: | acathrow, aglotov, bsarathy, chayang, juzhang, kraxel, michen, mkenneth, qzhang, sluo, virt-maint | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2013-11-11 09:01:43 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
|
||||||
|
Description
Juan Rodriguez
2013-11-01 12:26:57 UTC
Reproduce this issue on qemu-kvm-0.12.1.2-2.415.el6.x86_64 that passthrough usb tablet device doesn't work well with EHCI controller. If used uhci controller to test that worked well. BTW, i don't think there is bugging here, as QEMU has gave speed mismatch warning message for your using wrong controller, this suggestion that you should use the 1.1 UHCI controller for the low speed device i think. host info: # uname -r && rpm -q qemu-kvm 2.6.32-425.el6.x86_64 qemu-kvm-0.12.1.2-2.415.el6.x86_64 Steps: 1.insert a usb mouse to host, get the vendorid and productid info. # lsusb | grep USB Bus 002 Device 003: ID 046d:c06a Logitech, Inc. USB Optical Mouse 2.passthroug the usb mouse to guest with EHCI controller. e.g:...-device usb-ehci,id=ehci -device usb-host,vendorid=046d,productid=c06a,port=1 Results: after step 2, there are many speed mismatch warning message prompt in HMP monitor, and the passthrough usb mouse can't work in guest. (qemu) info usb Device 0.0, Port 1, Speed 1.5 Mb/s, Product USB Host Device (qemu) c husb: open device 2.3 husb: grabbed usb device 2.3 Warning: speed mismatch trying to attach usb device USB Optical Mouse to bus ehci.0 (qemu) husb: open device 2.3 husb: grabbed usb device 2.3 qemu-kvm: Warning: speed mismatch trying to attach usb device USB Optical Mouse to bus ehci.0 husb: open device 2.3 husb: grabbed usb device 2.3 qemu-kvm: Warning: speed mismatch trying to attach usb device USB Optical Mouse to bus ehci.0 (qemu) info usb Device 0.0, Port 1, Speed 1.5 Mb/s, Product USB Optical Mouse Base on above, i make qa_ack+ this issue first, please correct me if any mistake. Best Regards, sluo (In reply to Sibiao Luo from comment #1) > BTW, i don't think there is bugging here, as QEMU has gave speed mismatch > warning message for your using wrong controller, this suggestion that you > should use the 1.1 UHCI controller for the low speed device i think. > According above, i should remove the qa_ack+ first, this maybe not a bug form QE side. Gerd Hoffmann, could you help check this issue, thanks in advance. Best Regards, sluo Created attachment 822323 [details]
libvirt ehci setup
Tablet is a usb1.1 device and doesn't work with ehci (usb 2.0 controller).
If you need a usb bus which can handle both 1.1 and 2.0 devices you'll need
a bunch of uhci companion controllers for the ehci controller. The attachment
shows how to configure this in libvirt.
|