[Xen-bugs] [Bug 1504] New: [vt-d]USB mouse/keyboard device has poor performance in guest

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1504

           Summary: [vt-d]USB mouse/keyboard device has poor performance in
                    guest
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jiajun.xu@xxxxxxxxx


Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32e
Guest OS Type (Linux/Windows): Linux
Change Set: 20033
Hardware: NHM-HEDT


Bug detailed description:
--------------------------
We assigned USB keyboard/mouse device to guest, the response of keyboard/mouse
is very slow.
This issue is for all bdf but not only for some special bdf. 

USB lspci info:
[root@vt-nhm1 ~]# lspci | grep USB
00:1a.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI
Controller #4
00:1a.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI
Controller #5
00:1a.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI
Controller #6
00:1a.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI
Controller #2
00:1d.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI
Controller #1
00:1d.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI
Controller #2
00:1d.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI
Controller #3
00:1d.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI
Controller #1


-- 
Configure bugmail: 
http://bugzilla.xensource.com/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

_______________________________________________
Xen-bugs mailing list
Xen-bugs@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-bugs