Firmware interaction method and device, server and storage medium

The invention relates to a firmware interaction method and device, a server and a storage medium. The method is applied to the server, the server comprises a plurality of firmware, each firmware comprises a central processing unit (CPU), a basic input and output system (BIOS) and a baseboard management controller (BMC), and the method comprises the following steps: in a power-on self-test stage after the server is started, obtaining initial memory mapping IO from the CPU through the BIOS, carrying out initialization operation on the initial memory mapping IO through the BIOS to obtain target memory mapping IO, and sending the target memory mapping IO to the server; the target memory mapping IO is used for interacting with the BMC through the BIOS. By adopting the method, the interaction time of multiple pieces of firmware in the server can be shortened, so that the starting time of the POST stage of the server is shortened. 本申请涉及一种固件交互方法、装置、服务器和存储介质。该方法应用于服务器，服务器包括多个固件，各固件为中央处理器CPU、基本输入输出系统BIOS和基板管理控制器BMC，包括：