19 min read

What Is A Separation Kernel?

By Tim Loveless | Principal Solutions Architect on Mar 22, 2020 12:02:33 PM

_______________

Having built both separation kernels and real-time operating systems—and supported customers using both across a wide range of industries—we are familiar with the pros and cons of each software technology, as well as their security, safety, reliability, and adaptability impact on complex system designs. Yet despite providing strong security and safety benefits and being the foundation of some of the world’s largest mission-critical systems, separation kernels remain largely unknown and poorly understood. In this article, we hope to:

  1. Bring some clarity to the topic of separation kernels vs. real-time operating systems (RTOSes) and embedded hypervisors
  2. Discuss the benefits and drawbacks of using a separation kernel as the software foundation of your embedded systems design
  3. Introduce LynxSecure®, our own separation kernel
Topics: Safety Certification MCP Least Privilege Systems Architecture Security Trusted Codebase architecture linux rtos embedded systems hardware vulnerabilities development real-time LynxSecure separation kernel hypervisors virtualization
9 min read

Embedded Best Practices at Arm Tech-con

By James Deutch | Principal Field Applications Engineer on Oct 17, 2019 2:13:00 PM

_______________

Lynx participated in this year’s Arm TechCon with a booth in the expo hall, where we demoed Lynx MOSA.ic and its components — LynxSecure®, Buildroot Linux, LynxOS-178®, and Lynx Simple Applications (which are bare-metal apps).  It was great to see people walk down the hallways and stop in the aisle to examine the Automotive demo and Industrial demos.

The concepts behind the demos apply across multiple industries and use cases; we simply chose to highlight these concepts in the context of these two markets for the purpose of putting together the demos.  For more information on the Automotive demo, you can read Chris Barlow's blog post.  Below you can see a close-up of the architectural graphic shown on the notebook’s screen:

Topics: Demo Multicore Safety MCP Least Privilege Systems Architecture Arm Tech Con Security Trusted Codebase embedded systems partitioning privilege escalation development real-time Technical Blog
16 min read

How to Choose a Real-Time Operating System

By Tim Loveless | Principal Solutions Architect on Oct 14, 2019 10:32:00 AM

_______________

Choosing an RTOS is not as simple as choosing a car.  We know about cars; we know their strengths and weaknesses and we intuitively understand compromises like performance vs practicality or luxury vs price.  We see all kinds of vehicles on the road, so the range of available cars is obvious. When choosing an RTOS, the middle ground is crowded—dozens of general-purpose RTOSes with broadly similar characteristics compete.  They all have a scheduler, services, libraries, middleware, technical support, and graphical tools. Any one of them could genuinely do a good job and so choosing between them is a mixture of quantitative metrics (like features and price) and qualitative measures (like past-experience, personal-preference, and reputation). 

Topics: Multi-core Avionics Lynx MOSA.ic™ Multicore Safety MCP Systems Architecture Security linux embedded linux rtos embedded systems development real-time
3 min read

Design Prevails: Protecting Systems from Meltdown and Spectre

By Will Keegan | CTO on Feb 19, 2018 10:21:00 AM

_______________

Topics: Press Release Least Privilege Systems Architecture Security spectre CVEs hardware side channels privilege escalation meltdown vulnerabilities