https://bugzilla.kernel.org/show_bug.cgi?id=94771
Bug ID: 94771
Summary: [Nested kvm on kvm] 32bit win7 guest as L2 guest sho
blue screen
Product: Virtualization
Version: unspecified
Kernel Version: 4.0.0-rc1
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: kvm
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Environment:
------------
Host OS (ia32/ia32e/IA64):ia32e
Guest OS (ia32/ia32e/IA64):ia32
Guest OS Type (Linux/Windows):Windows
kvm.git Commit:4ff6f8e61eb7f96d3ca535c6d240f863ccd6fb7d
qemu.kvm Commit:d598911b6f5e7bf7bafb63b8e1d074729e94aca7
Host Kernel Version: 4.0.0-rc1
Hardware:Ivytown_EP, Haswell_EP
Bug detailed description:
--------------------------
create 32bit win7 guest as L2 guest, the guest will show blue screen.
note:
create 32bit win8 or 32bit win8.1 as L2 guest, the guest boots up fine.
Reproduce steps:
----------------
1 create L1 guest:
qemu-system-x86_64 -enable-kvm -m 8G -smp 4 -net nic,macaddr=00:12:31:34:51:31
-net tap,script=/etc/kvm/qemu-ifup nested-kvm.qcow -cpu host
2. create L2 guest
qemu-system-x86_64 -enable-kvm -m 2G -smp 2 -net none win7-32.qcow
Current result:
----------------
32bit win7 as L2 guest boots up fail
Expected result:
----------------
32bit win7 as L2 guest boots up fine
Basic root-causing log:
----------------------
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