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BIOS flash memory data read and write system and method based on baseboard management controller

A technology for baseboard management and data reading and writing, applied in electrical digital data processing, instruments, etc., can solve problems such as unimaginable consequences, achieve the effect of achieving integrity, improving reliability, and highlighting substantive characteristics

Inactive Publication Date: 2017-05-31
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

At present, the BIOS has become the target of attacks by some viruses and Trojan horses. Once the BIOS is damaged, the consequences will be disastrous

Method used

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  • BIOS flash memory data read and write system and method based on baseboard management controller

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Embodiment Construction

[0025] In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation mode combined with the accompanying drawings.

[0026] As can be seen from the accompanying drawings, the BIOS flash memory data reading and writing system based on the baseboard management controller of this program includes an ARM processor and a BIOS controller. The stack-out module is connected to the BIOS controller, and the BIOS controller is connected to the BIOS flash memory, wherein the SCLK pin of the BIOS controller is connected to the CLK pin of the BIOS flash memory, and the SDO pin of the BIOS controller is connected to the WR pin of the BIOS flash memory; The SDI pin of the controller is connected to the RD pin of the BIOS flash memory; the CS pin of the BIOS controller is connected to the SEL pin of the BIOS flash memory; SCLK: output signal, as the clock output signal of the SPI bus, controls the timing of the BIOS...

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Abstract

The invention provides a BIOS flash memory data read and write system and a method based on a baseboard management controller. The system comprises an ARM processor, a BIOS control device, the ARM processor is connected with a first-in and first-out stack module, and the first-in and first-out stack module is connected with the BIOS control device, and the BIOS control device is connected with a BIOS flash memory. According to the technical scheme, the operation of the BIOS flash memory (BIOS Flash) is achieved, the scheme is based on the reading and writing of the data of the BIOS control device of the BMC SPI interface, a control device of an SPI interface is utilized in BMC to interact with BIOS, and the complete verification is further conducted through the BMC reading the BIOS code, the completeness of BIOS is guaranteed and malicious codes are certainly not planted, and the reliability of the execution environment of a system platform is thus guaranteed.

Description

technical field [0001] The invention relates to a BIOS flash memory data reading and writing system and method based on a baseboard management controller. Background technique [0002] In the prior art, it is known that the BMC is a baseboard management controller on the main board of the server, and its function is to provide remote management functions for the server by using a virtual keyboard, interface, mouse, power supply, and the like. Users use the BMC to monitor the physical characteristics of the server, such as the temperature, voltage, fan working status, power supply, and chassis intrusion of each component. [0003] BIOS is a set of programs solidified on a ROM chip on the main board of the server. It stores the most important basic input and output programs of the server, the self-test program after power-on and the system self-starting program. It can read and write the system settings from the CMOS. specific information. Its main function is to provide the...

Claims

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Application Information

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IPC IPC(8): G06F13/20
CPCG06F13/20
Inventor 苏振宇
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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