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Bug 1001113

Summary: Disable or remove USB host controller devices we won't support
Product: Red Hat Enterprise Linux 7 Reporter: Markus Armbruster <armbru>
Component: qemu-kvmAssignee: Markus Armbruster <armbru>
Status: CLOSED WONTFIX QA Contact: Virtualization Bugs <virt-bugs>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.0CC: acathrow, huding, juzhang, michen, sluo, virt-maint, xfu
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-04-29 12:00:15 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:
Bug Depends On: 1001216    
Bug Blocks: 720747    

Description Markus Armbruster 2013-08-26 14:06:10 UTC
The following USB host controller devices should be removed or made unavailable with -device / device_add:

name "exynos4210-ehci-usb", bus System
name "xlnx,ps7-usb", bus System
name "vt82c686b-usb-uhci", bus PCI
name "piix4-usb-uhci", bus PCI

How reproducible:
Always

Steps to Reproduce:
1. for X in the above devices: -device X

Actual results:
-device X is accepted

Expected results:
-device X is rejected, just like -device nonexistant

Additional info:
Equally unwanted pci-ohci, sysbus-ohci are tracked seperately (bug 903914).

Comment 3 Markus Armbruster 2014-04-29 12:00:15 UTC
The time for cutting unwanted devices has passed.  We'll have to live with these, just as in RHEL-6.

Comment 4 Markus Armbruster 2014-07-29 13:04:25 UTC
Clarification on WONTFIX: "exynos4210-ehci-usb" and "xlnx,ps7-usb" are actually gone (fix for bug 1001216 got rid of them).  Only "vt82c686b-usb-uhci" and "piix4-usb-uhci" are still around.