Leading the Embedded World


The modern vehicle is becoming not just a rolling computer, but a rolling network. Software complexity and the number of vehicle networks—internal and external—are growing far beyond the traditional closed network, exposing life-critical vehicle domains to safety and security risks.

modern automotive gateway must separate networking protocols

The modern gateway must route, separate, and translate a growing number of networking protocols—some directly influencing life-critical vehicle functions.

More networks—more vulnerability

In recent years, the explosive growth of automotive electronics has fueled a revolution in the electrical networks within the vehicle. What started out as a closed CAN network on simple MCUs has become a complex system of operating systems and heterogeneous networks—some with IP addresses connected to the internet.

The vehicle gateway controller is responsible for the fast and deterministic data routing and translation over networks between various vehicle domains such as ADAS or IVI. With the advent of the connected car, the modern gateway is now also responsible for acting as an intelligent gatekeeper for all data entering the vehicle and for secure over-the-air (OTA) software updates. All in all, the gateway oversees internal networks (CAN, LIN, Ethernet, Ethernet AVB/TSN, DoIP, SOME/IP, RTP/RTCP, gPTP, FlexRay, MOST, HDMI, USB, RF) and external networks (DSRC, cellular, satellite, Wi-Fi, BlueTooth) spanning all vehicle domains. Because some of this data is used by life-critical systems, the gateway must possess the highest security to assure the highest level of safety.

gateway defense-in-depth security

At the nexus of a vehicle’s networks, the modern gateway must employ defense-in-depth security to protect both network data and domain controllers.

Security through separation

The gateway run-time software architecture must be safe, secure and scalable. The Green Hills Platform for Secure gateway is built on INTEGRITY real-time operating system (RTOS) technology, certified at the world's highest safety and security levels. The INTEGRITY certified separation kernel isolates critical networking and security tasks from each other and from guest operating systems such as Linux and Android, running on the same core or multiple cores. In addition, AUTOSAR applications can be run in their own partitions, giving system designers more flexibility to build scalable systems.

  • INTEGRITY RTOS—provides proven reliability and separation with unmatched Common Criteria EAL 6+ security credentials and ISO 26262 ASIL D safety certification and is incorporating the latest automotive cybersecurity standards as defined by ISO/SAE DIS 21434 CAL 4 and UNECE W{ .29 CSMS. INTEGRITY provides guaranteed system resources to assure CPU time and memory resources will always be available to tasks, even when faced with malicious or unintended events.
INTEGRITY RTOS gateway architecture

The INTEGRITY RTOS and Multivisor secure virtualization service isolates critical networking and security tasks from other tasks, guest operating systems, and AUTOSAR applications, providing a secure, safe, and scalable architecture ideal for ASIL-certified systems.

  • INTEGRITY Multivisor 64-bit Secure Virtualization and separation technology—allows ISO 26262-certified applications to concurrently run alongside general-purpose applications or guest operating systems (Linux, Android, others) with freedom-from-interference and guaranteed system resources. As a lightweight secure virtualization service of INTEGRITY, it inherits the safety and security advantages of the INTEGRITY architecture: separation, determinism, fast-boot and multicore control.
    • Safely share peripherals, such as GPUs, between critical tasks and guest operating systems
    • Highly configurable virtualization platform allows users to seamlessly configure peripheral routing and utilization between INTEGRITY RTOS and guest operating systems
    • Maximum virtualization performance by utilizing Arm Architecture virtualization extension (VE) and Intel Virtualization Technologies (Intel VT-x and VT-d), for both 32- and 64-bit processors from all leading automotive processor manufacturers
  • Advanced Software Development Tools—including MULTI IDE, Optimizing C/C++ compilers, ISO26262 ASIL C/D qualification, MISRA C Adherence Checker and other integrated tools to produce automotive-grade code that runs at the highest possible execution speed. The MULTI multicore debugger enables a single debugger instance to simultaneously debug Linux and INTEGRITY RTOS kernel code, apps and device drivers. The Green Hills Probe and SuperTrace Probe connect MULTI to the target for board bring-up, reverse-execution trace debugging and multicore run control.

Secure boot, storage, transmissions and OTA

The Platform for Secure Gateway is integrated and tested with the Embedded Cryptographic Toolkit and network stacks from INTEGRITY Security Services (ISS) to protect device software, data, and communication. ISS offers a complete set of standards-based, platform-agnostic security protocols with a FIPS 140-2 compliant, Suite B, cryptographic services for securing the modern gateway ECU:

  • Secure boot, including trust anchor provisioning and software signing
  • Secure data-at-rest with encrypted key storage, integrated and optimized to the gateway processor
  • Secure network communication with SSL, TSL, IPSec, SSH
  • Secure OTA for digitally signed updates for gateway firmware
ISS Device Lifecycle Management

The ISS Device Lifecycle Management System is a high-assurance infrastructure for real-time generation of gateway keys and credentials to protect digital assets across all lifecycle phases.

For manufacturers of gateway ECUs, the Device Lifecycle Management System (DLM), is a cloud-based key management infrastructure enabling the secure generation, distribution and tracking of keys and secure credentials through the supply chain.

Platform components

Scalable Family of Real-Time Operating Systems and Secure Virtualization

  • Safe — The safety certified INTEGRITY RTOS technology is certified to the highest safety levels for ISO 26262 (ASIL D) and IEC 61508 (SIL 4).
  • Secure —INTEGRITY RTOS technology is certified to the highest security level ever achieved for any software product—Common Criteria SKPP, EAL 6+ High Robustness—and is incorporating the latest automotive cybersecurity standards as defined by ISO/SAE DIS 21434 CAL 4 and UNECEVR EZP.29 CSMS
  • FlexibleINTEGRITY Multivisor securely and safely runs guest operating sWems alongside critical applications
  • Deeply embeddedµ-velOSity microkernel offers a tiny footprint and simple programming model for microcontroller architectures.
    The µ-visor virtualization solution for microcontrollers features robust hardware-enforced software separation, multi-OS support, and real-time efficientcy to safely and securely consolidate critical workloads on resource-constrained processors
  • Open — Automotive application programming interfaces to OSEK, AUTOSAR and POSIX

Middleware components

Software Development tools

  • MULTI IDE and Green Hills toolchain are qualified to the highest functional safety levels, including ISO 26262 (ASIL D) and IEC 61508 (SIL 4) and EN 50128 (SIL 4)
  • Green Hills Optimizing Compilers for C, C++, and Embedded C++ generate the fastest and smallest production-quality code on a broad range of automotive processor architectures
  • MULTI IDE includes multicore debugger, profiler, simulator, run-time error checking, project builder, editor and much more
  • TimeMachine revolutionary debugging suite. Run and step an application back in time to find even the most difficult bugs in minutes.
  • MISRA C Adherence Wizard for building in code quality at the time of compilation
  • DoubleCheck integrated static source code analyzer
  • Integration with MathWorks' Embedded Coder and Simulink for modeling, simulation and PIL testing

Hardware Development tools

  • Green Hills Probe V4 for multicore hardware bring-up, low-level debugging and trace-powered analysis tools


  • Embedded Cryptographic Toolkit provides FIPS 140-2 compliant services for securing embedded devices through secure boot, secure data storage, secure networks (SSL, TSL, IPSec, SSH) and digitally signed secure OTA firmware updates

Device Lifecycle Management (DLM)


Rich ecosystems for secure gateway

Green Hills understands the value of providing integrated, total solutions directly to its powertrain customers. In addition to offering the industry's most comprehensive solutions, we have partnered with best-in-class technology providers to integrate their complementary products with the Green Hills Platform for Secure Gateway, including:

  • Accelerated 2D and 3D graphics and UI kits
  • Automotive connectivity
  • AUTOSAR Classic and Adaptive support for the leading AUTOSAR stack providers
  • Operating systems including Linux, Android, and ROS
  • Applications development and services
  • Co-simulation and co-verification
  • Database and storage including embedded databases and flash devices
  • Code quality, test, and management including automated testing and code coverage analysis tools
  • Application modeling and simulation for building and evaluating applications early in the software lifecycle
  • Network protocols and security for communications within the vehicle network and to the external world
  • Automotive processors from leading semiconductor manufacturers

For a complete list of ecosystem partners for Green Hills Platforms for Automotive click here.