A heterogeneous multi-core processor with bus connection adjustment

Abstract

The invention discloses a heterogeneous multi-core processor for bus connection adjustment. The heterogeneous multi-core processor comprises an architecture bus, bus equipment and a first communication bus which are connected with the architecture bus, and an application CPU core connected with the first communication bus; the application CPU core is provided with a debugging port used for being connected with a debugger, the first communication bus is used for being connected with plug-in equipment, and the first communication bus is used for allowing main equipment in bus equipment and the application CPU core to access the plug-in equipment. According to the the technical scheme, both the application CPU core and the plug-in device are not connected to the architecture bus, therefore, when the debugger is connected to the application CPU through the debugging port and the plug-in equipment is operated, even if a malicious attacker attacks through the debugging port, the malicious attacker only attacks the plug-in equipment along the application CPU core and the first communication bus without influencing the bus equipment connected with the architecture bus, so that the safety of the bus equipment can be ensured.

Description

technical field [0001] The present application relates to the technical field of multi-core processors, and more specifically, to a heterogeneous multi-core processor for bus connection adjustment. Background technique [0002] Heterogeneous multi-core processors provide great potential for high-performance computing, which integrates multiple processor cores with different structures or functions in one chip, generally including general-purpose main processing and accelerators. Heterogeneous multi-core processors can use different types of processor cores to complete different types of tasks. If the task parallelism is high, use many streamlined accelerators to speed up, otherwise use a powerful general-purpose main processor to run, which is better than using the same processing It is more efficient for the processor core to perform all tasks, which is more conducive to improving the performance of the processor. [0003] At present, in heterogeneous multi-core processors...

AI Technical Summary

Problems solved by technology

For the above structure, during the access, upgrade, reconfiguration or debugging of the external devices in the heterogeneous multi-core processor through the debug port of the application CPU core, since the application CPU core is also connected to the bus device through the bus, malicious attacks The operator may implant unauthorized software, code, etc. into the bus device by using the debug port of the CPU core, which will reduce the security of the bus device

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