For a migration to occur, both the source and target machines must be running compatible software:
The hypervisor on both the source and target machines must have firmware that supports domain migration.
If you see the following error, you do not have the correct version of system firmware on either the source or target machine.
System Firmware version on <downrev machine> does not support Domain Migration Domain Migration of LDom <source domain> failed
A compatible version of the Logical Domains Manager must be running on both machines.
The migration feature was first released with the Logical Domains 1.1 software and corresponding firmware. For information about the latest firmware for your platform, see the Logical Domains 1.2 Release Notes.