A security control device and method for a multi-core processor

Abstract

The present disclosure relates to a security control device and method for a multi-core processor. The device includes: a bus, multiple processor cores connected to the bus, multiple startup registers, and a bus monitor; multiple startup registers are connected to multiple processing Corresponding settings of the processor core, and used to control the safe operation of the corresponding processor core; the bus monitor is used to monitor the access of the processor core to the bus in real time. In this disclosure, by setting the bus monitor and the startup register, at the beginning of the startup, a safety monitoring check is used to verify the safety of the operating environment of each processor core, and the safe operation of the processor core is controlled through the startup register, and then the processor core is running. The bus monitor continuously monitors the access status of the processor core, and comprehensively detects, verifies and monitors the security of the system from the moment the system is started, so as to realize dynamic security monitoring and improve system security.

Description

technical field [0001] The present disclosure relates to the technical field of multi-core processors, and in particular, to a security management and control device and method for multi-core processors. Background technique [0002] Using a multi-core processor to improve the performance of the processor is a commonly used technology at present. The overall computing power of the processor chip can be improved by integrating multiple identical processor cores in one chip; Heterogeneous processor cores are integrated to form a high-performance processor; multiple general-purpose processor cores, graphics processor cores, and dedicated accelerators can also be integrated to form a high-performance computing core for domain applications. [0003] figure 1 It is an architecture diagram of the processor as the core computing unit of the embedded system in the prior art, such as figure 1 As shown, the processor core is mainly composed of computing components and control compone...

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Problems solved by technology

[0004] but, figure 1 In the actual application of the embedded processor shown in the strong real-time embedded system, it is difficult to verify the system security

In a multi-core processor, each processor core executes different programs and performs different functions. Any processor core may be attacked and hijacked. Security issues caused by attacks

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