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Virtualization function added to scalable RTOS

April 22, 2020 By Aimee Kalnoskas Leave a Comment

eSOL announced the immediate availability of its eMCOS Hypervisor, a ground-breaking embedded virtualization function for the company’s eMCOS scalable real-time operating system (RTOS). eMCOS Hypervisor facilitates the integration of both robust real-time applications on RTOS and feature-rich applications on general-purpose OS – running concurrently on a single hardware platform. Full time and space isolation is provided for each mixed-criticality system.

In terms of architecture, the addition of virtualization to the eMCOS RTOS brings even greater flexibility in mixed-criticality system configuration, making it possible to incorporate general-purpose operating systems like Linux or Android without compromising real-time capabilities and safety.

As eMCOS Hypervisor is implemented by incorporating a mechanism for virtualization into eMCOS POSIX, users can enjoy scheduling features such as load-balancing and time separation, on the same hardware platform as a guest OS.

As guest operating systems are started as eMCOS POSIX processes, the boot sequence can be implemented simply as a process start, and is easily customized as sequential start-up and multi-core parallel start-up. The deployment of multiple guest operating systems is performed in a coordinated, optionally load-balanced manner, without impacting the determinism of real-time or safety functions.

Linux standard Virtio drivers are supported, making it easy to port Linux guests. In addition, drivers that are tightly coupled to the SoC can be ported with ease because the Virtual Machine Monitor (VMM) can filter or passthrough hardware accesses.

The robustness of eMCOS Hypervisor against malfunctions and malicious software. The system is designed to minimize and optimize the virtualization mechanism in the more privileged hypervisor and kernel space and perform most processing in the VMM placed in the user space. As a result, abnormalities in the guest OS and virtual machine do not cause catastrophic failures that lead to a system-wide crash.

Filed Under: Embedded, RTOS Tagged With: esol

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