PCIe firmware management method, processor, chip and electronic device

Abstract

Embodiments of the present disclosure provide a PCIe firmware management method, a processor, a chip and an electronic device. The PCIe firmware management method comprises: in a power-on starting process of a processor, performing, by an auxiliary processing unit, a PCIe controller subsystem initialization operation to generate PCIe configuration information; and delivering the PCIe configuration information to a main processing unit; acquiring, by the main processing unit, the PCIe configuration information and reporting the PCIe configuration information to an operating system, so that the operating system performs PCIe hardware management based on the reported PCIe configuration information. The PCIe firmware management scheme provided by the embodiments of the present disclosure helps to improve the starting speed of the PCIe function, and further enables the PCIe device based on the PCIe function to be quickly enabled; facilitates the later maintenance and debugging of the code, and flexibly realizes the extension and upgrade of the PCIe initialization code without interfering with the main processing unit; and reduces the processing burden of the main processing unit in the processor, so that it can focus on performing other important tasks.

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