Embedded virtualization system implementation method based on microkernel mechanism

Abstract

The invention discloses an embedded virtualization system implementation method based on a microkernel mechanism, virtualization resources of embedded equipment are partitioned, each resource partition comprises a plurality of CPUs, each resource partition group serves as an independent execution environment to execute a client operating system kernel, and when a client is guided, each client operating system kernel image is loaded to a corresponding client resource partition; and partition access control is carried out on virtual system resources through permission access control based on a micro kernel, a virtual machine management program and a client to be guided carry out cooperative control on the resources in the client resource partition according to the configured permission, and then cross-core communication of the client is achieved based on the rmsg in the running process of the client. According to the invention, an asymmetric processor architecture and a microkernel permission access control mechanism are adopted, the isolation and security of each operating system are ensured, and cross-core communication is realized among a plurality of clients through an rpmsg framework.

Description

technical field [0001] The invention belongs to the technical field of ARM architecture virtualization, and more specifically relates to a method for realizing an embedded virtualization system based on a microkernel mechanism. Background technique [0002] With the rapid development of embedded software and hardware, embedded system products have penetrated into all aspects of our lives, and embedded systems and equipment have been applied in mobile phones, vehicle electronics, industrial control and other fields. On the one hand, with the continuous upgrading of embedded hardware architecture, embedded systems today require features such as high performance, real-time performance, and microkernel architecture. On the other hand, as the requirements continue to deepen, complex usage scenarios appear more and more frequently, and there is often a collaborative work between applications running on general-purpose operating systems and real-time operating systems. The emergen...

AI Technical Summary

Problems solved by technology

The common limitations and defects of these two methods are similar. They both rely too much on the rich component ecosystem of Linux. Once separated from Linux, they cannot support the normal operation of the client in the virtualization system.

Ordinary client kernels also need the support of Linux components in booting, which has great limitations.

And in the embedded field, the size of the supporting software will also cause certain restrictions. In some application fields, the Linux kernel cannot meet its requirements for simplicity, efficiency, security, and portability.

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