KVM: after upgrade to RHEL 7.3, Guest hangs after migration.

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Issue

After upgrading to RHEL 7.3, guest hangs after migration

Environment

Red Hat Enterprise Linux 7.3
Source Host has AMD Family 21 Processor
- AMD Opteron(tm) Processor 6344
Destination Host has AMD Family 16 Processor
- AMD Opteron(tm) Processor 6168
Opteron_G3 qemu cpu model.

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