[Xen-bugs] [Bug 1710] New: [vt-d] fail to passthrou two or more devices to guest

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1710

           Summary: [vt-d] fail to passthrou two or more devices to guest
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Tools
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: shaohui.zheng@xxxxxxxxx


Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32e
Guest Arch (ia32/ia32e/IA64): 
Guest OS Type (Linux/Windows):Linux
Change Set: 22764
Hardware: Westmere-ep and Sandybridge 

Other:
xen-changeset:   22764:75b6287626ee
xen-date:        Fri Jan 14 16:38:51 2011 +0000
xen-summary:     rcupdate: Make rcu_barrier() more paranoia-proof

pvops git:
commit 862ef97190f6b54d35c76c93fb2b8fadd7ab7d68
Merge: 7835387... 5823a82...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Date:   Mon Dec 6 14:56:48 2010 -0800

ioemu git:
commit 1c304816043c0ffe14d20d6006d6165cb7fddb9b
Author: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date:   Tue Jan 11 18:48:58 2011 +0000





Bug detailed description:
--------------------------
For the xen-unstable(c/s22764).When assigned more than two pf (or vf) NIC to
guest,we only seen one pf (or vf) NIC. This issue is exsited at Westmere-ep and
Sandybridge .


Reproduce steps:
----------------
1.hide two pf (or vf) NIC.
2.assign two(or more than two) pf or vf NIC to guest in config file.
3.xl create <your config file>.
4.we only seen one pf (or vf) NIC.

Current result:
----------------


Expected result:
----------------


Basic root-causing log:


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