Bug 715590

Summary: Add support for USB 2.0 (EHCI) to libvirt
Product: Red Hat Enterprise Linux 6 Reporter: Daniel Berrangé <berrange>
Component: libvirtAssignee: Osier Yang <jyang>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: low    
Version: 6.0CC: ajia, bsarathy, chaowang, czhang, dallan, dyuan, gren, juzhang, kraxel, mkenneth, mzhan, rwu, tburke, veillard, virt-maint, weizhan
Target Milestone: beta   
Target Release: 6.2   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: libvirt-0.9.9-1.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 645351 Environment:
Last Closed: 2012-06-20 06:29:05 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 645351    
Bug Blocks: 580953, 747667, 808057    

Description Daniel Berrangé 2011-06-23 12:55:52 UTC 
QEMU upstream has gained USB 2.0 (EHCI) support. The way this is implemented in QEMU will require some additional work in libvirt to enable its use.

Specifically the ECHI device will need to be explicitly added to the guest, and USB devices attached to the guest will need to be explicitly connected to that device, rather than the default USB 1.0 device.

This will require

 - Additional <controller> type in guest XML to represent the USB controllers used for initial startup
 - The same for hotplug/unplug of the USB 2.0 device controller
 - Additional <address type='usb'/> to specify the USB controller, and the USB socket to connect to, for any USB devices

We likely also want to consider whether the node device XML actually contains enough info to determine if a host device needs USB 2.0 support or not, so apps can validate it before trying to connect the device to the guest.
Comment 1 Daniel Berrangé 2011-06-23 12:56:47 UTC 
See also

http://www.redhat.com/archives/libvir-list/2011-June/msg00296.html
http://www.kraxel.org/cgit/qemu/tree/docs/usb2.txt?h=usb.15
Comment 5 Osier Yang 2011-09-13 06:49:30 UTC 
https://www.redhat.com/archives/libvir-list/2011-September/msg00104.html

Patches from Marc-Andre Lureau are in upstream.
Comment 12 Min Zhan 2012-01-13 10:02:35 UTC 
According to Comment 10 & 11, move it to VERIFIED.
Comment 14 errata-xmlrpc 2012-06-20 06:29:05 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2012-0748.html