A method and computer system for identifying bios state based on bois bus

Abstract

The invention discloses a method for recognizing a BIOS (Basic Input / Output System) state based on a BOIS bus and a computer system. The computer system comprises a computer body and a BIOS carrier; the computer system further comprises judgment hardware, wherein the judgment hardware is connected to the BIOS bus which is communicated between the computer body and the BIOS carrier; the judgment hardware monitors data on the BIOS bus, judges a working state of the BIOS and outputs a state recognition signal. The method and computer system provided by the invention have no dependence on BIOS software and do not interfere with system start-up or extend the system start-up time.

Description

technical field [0001] The invention belongs to the technical field of computer systems, and in particular relates to a method and a computer system for identifying a BIOS state based on a BOIS bus. Background technique [0002] BIOS (Basic Input / Output System) is the first software loaded when the computer system is started. When the BIOS fails, the computer system will not be able to start normally. In order to ensure the reliability of the BIOS, the method of master-standby switch is generally adopted, and the premise of realizing the BIOS master-standby switch is to be able to correctly and accurately judge whether the BIOS is working normally. [0003] Such as figure 1 As shown, the method disclosed in the prior art includes a whole set of hardware and a computer body, wherein the whole set of hardware includes switching hardware for switching BIOS and judging hardware for judging BIOS operation, and the computer body is the minimum system required to start a computer....

AI Technical Summary

Problems solved by technology

[0004] 1. The BIOS software is required to operate the GPIO pins of the computer body, so the BIOS needs to be customized in conjunction with the active / standby switching function, and the BIOS needs to be customized during device development, which increases the complexity of the board design

[0005] 2. Judging the hardware requires the cooperation of the BIOS software to complete the judgment of the BIOS status. It is dependent on the BIOS software. If the BIOS hangs up after the program after setting the GPIO, the judgment hardware will make an error in judging the BIOS status.

[0008] 1. The BIOS bus and the bus where the error detection code is located are not on the same bus. It is necessary to judge that the hardware must be connected to the bus that outputs the error detection code, such as the LPC bus, but these bus signals often have more signals. For example, LPC has 5 necessary signals. Judging the hardware These 5 signals must be connected, and the connection structure is complex, which increases the complexity of the board design

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