[Xen-bugs] [Bug 971] New: HVM guest cannot detect memory > 4GB

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=971

           Summary: HVM guest cannot detect memory > 4GB
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HVM
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: yunfeng.zhao@xxxxxxxxx


Environment:
------------
Service OS (ia32/ia32e/IA64): IA32e
Guest OS (ia32/ia32e/IA64): 
Change Set: 14887
Hardware: 



Bug detailed description:
--------------------------
On xen unstable 14887 hvm guest cannot detect memory > 4GB.
If specified +4GB memory, HVM guest can only detect 4GB mem.
This issue exists on both IA32pae/IA32e linux and Windows HVM guests. 


Reproduce steps:
----------------
1.prepare a guest images
2.enable pae in guest.
3.assign more than 4G memory to guest
if you are testing a Window guest, you shold add "/PAE" in your boot.ini
4.boot guest and check memory size in guest OS

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


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


Basic root-causing log:
----------------------


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