Design method for achieving i2c bus data monitoring and protection

A technology of data monitoring and design method, applied in bus network, data exchange network, data exchange through path configuration, etc., can solve problems such as system crashes, and achieve the effect of improving security and stability

Inactive Publication Date: 2018-11-09
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to avoid the problem of maliciously modifying the internal registers of the IC through remote operation of the controller BMC, resulting in the collapse of the entire system

Method used

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  • Design method for achieving i2c bus data monitoring and protection
  • Design method for achieving i2c bus data monitoring and protection
  • Design method for achieving i2c bus data monitoring and protection

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Embodiment Construction

[0021] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily lim...

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Abstract

The present invention provides a design method for achieving i2c bus data monitoring and protection. CPLD is added in the hardware design to achieve monitoring and protection of data on an I2C bus, the CPLD is taken as a monitoring module to analyze the data on the I2C bus in real time, it is allowed that a controller BMC performs read-write operation of an IC by only employing a preset allowed command, and when there is an illegal command, the CPLD can immediately forbid the transmission of the I2C bus data so as to have the protection of the IC and improve the safety and the stability of thewhole system.

Description

technical field [0001] The invention relates to a common i2c bus, in particular to a design method for realizing data monitoring and protection of the i2c bus. Background technique [0002] In the mainboard design of the server, the i2c bus is a commonly used application bus, which is often used for data reading and writing between ICs, and the baseboard management controller (BMC), as a small operating system independent of the server system, can be used remotely It is convenient for the server to perform remote management, monitoring, installation, restart and other operations. Since the ICs are directly connected to the baseboard management controller BMC through I2C, and the BMC can directly perform read and write operations on the ICs through the I2C bus, when the remote operation manager is used, there is a possibility of illegal reading and writing of the IC through the remote operation manager. Operation, that is, to read and write the IC at will, there is a risk th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/40
CPCH04L12/40H04L41/145
Inventor 陈占良
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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