The EEMI service handlers are implemented in the PLM, as one of the modules called a PM Controller (there are other modules running in the PLM to handle other types of services). For more details, see the Boot and Configuration.
Embedded Energy Management Interface (EEMI)
EEMI API events are software-generated events. The events are triggered using IPI interrupts when a processor node initiates an EEMI API call to the PMC. The PM Controller handles the EEMI request. An EEMI request often triggers a change in the power state, or change in configuration of a resource.