From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 73331] New: Nested Virtualization, L2 cannot boot up on
 Ivybridge and Haswell
Date: Tue, 01 Apr 2014 06:47:08 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=73331

            Bug ID: 73331
           Summary: Nested Virtualization, L2 cannot boot up on Ivybridge
                    and Haswell
           Product: Virtualization
           Version: unspecified
    Kernel Version: 3.14.0-rc3
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: Robert.Hu@intel.com
                CC: jan.kiszka@web.de
        Regression: No

Environment:
------------
Host OS (ia32/ia32e/IA64):ia32e
Guest OS (ia32/ia32e/IA64):ia32e
Guest OS Type (Linux/Windows):Linux
kvm.git Commit:7227fc0666606b0df2c0d2966a7f4859b01bdf74
qemu.git Commit: 8648fcd52a9bcc2aa415cbe87b7c636e545acb38
Host Kernel Version:3.14.0-rc3
Hardware:Ivytown_EP, Grantley-EP

Bug detailed description:
--------------------------
create L2 guest, L2 guest cannot boot up on Ivytown.


Reproduce steps:
----------------
1.create L1 guests:
qemu-system-x86_64 --enable-kvm -m 10240 -smp 8 -net
nic,macaddr=00:12:45:67:2B:1C -net tap,script=/etc/kvm/qemu-ifup
nested-kvm-rhel6u4.qcow -cpu host
2. create L2 guests:
qemu-system-x86_64 -enable-kvm -m 1024 -smp 2 -net none rhel6u4.qcow


Current result:
----------------
L2 guest cannot boot up fine

Expected result:
----------------
L2 guest boot up fine.

Basic root-causing log:
----------------------
[root@rhel6u4 ~]# qemu-system-x86_64 -enable-kvm -m 1024 -smp 2 -net none
rhel6u4.qcow
VNC server running on `::1:5900'
KVM: entry failed, hardware error 0x0
EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000623
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=0000fff0 EFL=00000002 [-------] CPL=3 II=0 A20=1 SMM=0 HLT=0
ES =0000 00000000 0000ffff 00009300
CS =f000 000f0000 0000ffff 0000f300
SS =0000 00000000 0000ffff 0000f300
DS =0000 00000000 0000ffff 00009300
FS =0000 00000000 0000ffff 00009300
GS =0000 00000000 0000ffff 00009300
LDT=0000 00000000 0000ffff 00008200
TR =0000 00000000 0000ffff 00008b00
GDT=     00000000 0000ffff
IDT=     00000000 0000ffff
CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000000
Code=ff 66 89 c8 66 5b 66 5e 66 5f 66 5d 66 c3 fb f4 fa fc 66 c3 <ea> 5b e0 00
f0 30 36 2f 32 33 2f 39 39 00 fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

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