Processor fault injection method oriented to BIT software test and simulator thereof
A technology of fault injection and software testing, applied in the field of processors, can solve problems such as failure to execute, failure to inject components, poor accessibility, etc., to achieve the effect of ensuring reliability and accuracy
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[0042] The present invention will be further described in detail below with reference to the drawings and embodiments.
[0043] As an embedded software in avionics equipment, BIT software cannot run directly on x86 architecture PCs. The hardware circuit boards it runs are generally PowerPC, ARM and other RISC architectures. However, due to the closedness and non-intrusiveness of aviation boards For other reasons, failures cannot be injected directly into the hardware. Since the simulator is implemented in software according to the real hardware functions, it can be modified arbitrarily, and there is no intrusion or damage to the hardware and the applications running on it. Therefore, it is a feasible solution to combine simulator and fault injection technology in BIT software testing. The basic technical idea of the present invention is: take the hardware circuit board running BIT software as the simulation object, adopt the method of simulator simulation to solve the bottlene...
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