1. A computer implemented method for migrating a workload partition, the computer implemented method comprising: responsive to receiving a request to checkpoint the workload partition on a first data processing system, generating, by a checkpoint process, a list of a set of virtual identifiers used by the workload partition to refer to a set of inter-process communication (IPC) objects, wherein each virtual identifier of the set of set of virtual identifiers corresponds to an IPC object of the set of IPC objects and to a real identifier used by a kernel that corresponds to the IPC object; storing the list in a data repository; collecting IPC object data and control information for each IPC object in the list, forming collected data; storing the collected data in the data repository; storing, by each process in the workload partition, per process data in the data repository; responsive to receiving a request to restart the workload partition on a second data processing system, registering, by a restart process, the virtual identifier stored in the data repository that the workload partition wants to be used for a new IPC object to be created on the second data processing system to form a registered virtual identifier; creating the new IPC object by a kernel on the second data processing system; mapping, by the kernel, a real identifier used by the kernel associated with the new IPC object to the registered virtual identifier; retrieving, by the restart process, the collected data from the data repository associated with the registered virtual identifier; overlaying the collected data on the new IPC object; and restoring per process data from the data repository of r each process in the workload partition.