Equipment distributed access system and method in heterogeneous multi-core environment

Abstract

An equipment distributed access system in a heterogeneous multi-core environment comprises an equipment management program module, a security application program module, a vehicle information application program module, a route selection and distribution module, an equipment front-end module and a physical equipment interface module, and the equipment management program module, the security application program module and the route selection and distribution module are connected with the vehicle information application program module. The physical equipment interface module is located in the security processing domain; the vehicle information application program module and the equipment front-end module are located in an application processing domain; and the security processing domain and the application processing domain perform inter-core communication according to an RPMSG protocol. The invention further provides an equipment distributed access method under the heterogeneous multi-core environment, the vehicle body bus is accessed by using the security characteristic of the security processing domain, so that the application of the non-security domain can conveniently obtain the vehicle information, and the vehicle information is sent to the corresponding application program through the distribution rule.

Description

technical field [0001] The invention relates to the technical field of on-board chips, in particular to a heterogeneous multiprocessor support cross-domain device access and management system and method. Background technique [0002] With the development of the automobile industry today, under the development trend of automobile networking and intelligence, the chip system needs to take into account both computing power and functional safety. The chip design is more complex and needs to be designed to meet the needs of various scenarios. It is mainly manifested in the increase of the number of asymmetric multi-processors on the chip, and the functional isolation of the processors, retaining the necessary mutual communication, and ensuring the independent operation of their respective functions. However, as the overall design of a system, communication between processors, such as the sharing of certain hardware states and cross-network data transmission, is essential. It is n...

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Problems solved by technology

[0006] For applications, it is not only necessary to deal with the underlying details of cross-core communication and the distribution of data sources, but also to consider the synchronization and coordination of device bus interfaces between different applications and different operating systems, even in a virtualized environment Virtual devices on different virtual machines are cumbersome and unnecessary

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