In the last years, processors dedicated to embedded systems became more and more powerful enabling heterogeneous multi-core platforms. This created a new trend in combining multiple Electronic Control Units into a single System on Chip. These new platforms can be used to reduce the power consumption, the production cost, and design complexity. On the other hand, this approach introduces new problems regarding software isolation. For example, in an automotive use case, it is unacceptable that an issue in the infotainment software can cause a failure in the electric braking system. To solve this problem, it is possible to exploit processor features, such as ARM TrustZone, to ensure isolation at hardware level between many sub-systems.