CN113076140B - A GPIO configuration detection method, device and server - Google Patents

Abstract

The invention discloses a GPIO configuration detection method, a device and a server, which are characterized in that each GPIO and hardware are initialized; after initialization, sequentially reading pin logics of all GPIOs; comparing the read pin logic with standard logic in a pre-stored logic detection table, and judging whether the read pin logic is consistent with the standard logic; and outputting the comparison result, wherein if the comparison result is consistent with the comparison result, the GPIO configuration is normal, otherwise, the GPIO configuration is abnormal. The invention prestores a logic detection table, stores pin standard logic of the GPIO in the table, starts a machine to automatically collect pin information of the GPIO, matches the collected information with the prestored standard logic direction, carries out automatic detection, obtains a detection result and outputs the detection result. The method can obtain the correctness of the current GPIO configuration in the PCH, enhance the testability of the GPIO function, improve the test integrity and effectively improve the detection efficiency.

Description

A GPIO configuration detection method, device and server

technical field

The invention relates to the field of GPIO configuration detection, in particular to a GPIO configuration detection method, device and server.

Background technique

With the upgrade of server PCH chips, more and more GPIOs of PCH are added. The setting of GPIO is determined by the hardware. In the startup phase, a single GPIO is configured according to the hardware design, and the Native function or GPIO function is selected. Taking the GPIO function as an example, the GPIO function is configured as input and output signals, and the number of configured input and output signals depends on the hardware configuration. When configured as an output signal, it can be configured as a high level or a low level, and the path bit of the GPIO allows input of an SMI (system control interrupt), SCI (system management interrupt) or NMI (non-maskable interrupt) interrupt, each bit Can be used as the path of SMI or SCI, some registers of GPIO can be changed from lock down (locked) to read-only state.

Each GPIO corresponds to a function. Checking the settings of each GPIO can ensure that the function is running normally, and there will be no abnormal results of some function tests caused by some GPIO setting problems in the whole machine test. At present, some functions of GPIO settings can be tested, but most of the functions may not have corresponding function test cases. When verifying the configuration, it is generally read out through tools, and the GPIO configurations are manually checked one by one. However, there are many GPIOs in the PCH. Manual inspection is time-consuming and error-prone, and can only be inspected by developers. The test cannot fully cover the functional test, and it is prone to functional abnormalities caused by GPIO configuration errors.

Contents of the invention

In order to solve the above problems, the present invention provides a GPIO configuration detection method, device and server, which can automatically detect GPIO configuration and improve detection efficiency.

The technical scheme of the present invention is: a kind of GPIO configuration detection method, comprises the following steps:

S1, initialize each GPIO and hardware;

S2, read the pin logic of each GPIO in turn;

S3, comparing the read pin logic with the standard logic in the pre-stored logic detection table, and judging whether the two are consistent;

S4, outputting the comparison result, if the two are consistent, the GPIO configuration is normal, otherwise the GPIO configuration is abnormal.

Further, the method is executed during BIOS startup.

Further, steps S2-S4 are executed in the DXE stage of the BIOS boot process.

Further, before step S1, the following steps are also included:

Add a detection variable in the BIOS, which includes two states of on and off;

After step S1, the following steps are also included:

Determine the state of the detected variable;

If the state of the detection variable is turned on, then perform subsequent steps S2-S4, and continue to start the BIOS after performing step S4;

If the state of the detected variable is off, skip steps S2-S4 and continue to start the BIOS.

Further, step S4 outputting the comparison result is specifically outputting the comparison result through BIOS serial port printing.

Further, if the read pin logic does not match the standard logic in the pre-stored logic detection table, the output result includes the read pin logic and the corresponding standard logic.

The technical solution of the present invention also includes a GPIO configuration detection device, comprising:

Initialization module: initialize each GPIO and hardware;

Pin logic reading module: read the pin logic of each GPIO in turn;

Pin logic comparison module: compare the read pin logic with the standard logic in the pre-stored logic detection table, and judge whether the two are consistent;

Result output module: output the comparison result, if the two are consistent, the GPIO configuration is normal, otherwise the GPIO configuration is abnormal.

Further, the device operates during the BIOS startup process;

Wherein, the pin logic reading module, the pin logic comparing module, and the result output module operate in the DXE stage of the BIOS startup process.

Further, the device also includes,

Detection variable setting module: set the state of the detection variable; wherein the detection variable includes two states of on and off;

Detection variable state judgment module: judge the state of the detection variable; if the state of the detection variable is open, then continue to start the BIOS after running the pin logic reading module, pin logic comparison module, and result output module; if the state of the detection variable is off , then skip the pin logic reading module, the pin logic comparison module, and the result output module and continue to start the BIOS.

The technical solution of the present invention also includes a server, which executes any one of the methods described above when started.

A GPIO configuration detection method, device and server provided by the present invention store a logic detection table in advance, store GPIO pin standard logic in the table, start the machine to automatically collect GPIO pin information, and transfer the collected information and pre-stored standard logic to Matching, automatic detection, detection results and output. The invention can obtain the correctness of the GPIO configuration in the current PCH, enhance the testability of the GPIO function, improve the integrity of the test, and effectively improve the detection efficiency.

Description of drawings

Fig. 1 is a schematic flow chart of a method of a specific embodiment of the present invention;

Fig. 2 is a specific embodiment of the present invention-a schematic flow diagram of a specific implementation method;

Fig. 3 is a schematic block diagram of the second embodiment of the present invention.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

Some English terms involved in this application are explained below:

BIOS: Basic Input Output System, Basic Input Output System;

GPIO: General-purpose input/output, general-purpose input and output;

DXE stage: Driver Execution Environment, one of the execution stages of UEFI BIOS; this stage performs most of the system initialization work. When entering this stage, the memory can be fully used, so a lot of complicated work can be performed at this stage;

PCH: Platform Controller Hub, the integrated south bridge of intel company.

Embodiment one

As shown in Figure 1, the present embodiment provides a GPIO configuration detection method, including the following steps:

S1, initialize each GPIO and hardware;

S2, read the pin logic of each GPIO in turn;

S3, comparing the read pin logic with the standard logic in the pre-stored logic detection table, and judging whether the two are consistent;

S4, outputting the comparison result, if the two are consistent, the GPIO configuration is normal, otherwise the GPIO configuration is abnormal.

This method first pre-stores the logic detection table, which stores the pin standard logic of each GPIO. After reading the pin logic of each GPIO, the configuration of the GPIO is automatically detected by matching and comparing with the standard logic in the table. No need for manual inspection, improve detection efficiency.

The method of this embodiment is executed during the booting process of the BIOS, automatically detects the logic of the GPIO pin during the booting process of the BIOS, and provides the detection result. Specifically, by adding a detection variable in the setup menu of the BIOS to control the execution of the detection, the detection variable includes two states of on and off, and when the detection variable is in the on state, execute the method of this embodiment to detect the logic of the GPIO pin, otherwise Skip the detection and start the BIOS normally.

In order to further illustrate the present invention, below in conjunction with above-mentioned steps, provide a specific implementation method based on the principle of the present invention, as shown in Figure 2, this specific implementation method comprises the following steps:

SS1, add a menu option to detect variables in BIOS;

This option is added for testers to set according to their needs. The state of the detection variable includes two states of on and off, and the detection function can be turned on or off as needed.

SS2, pre-stored logic detection table;

The tester stores the logic detection table in advance, and the pin standard logic of each GPIO is saved in the table for subsequent detection.

SS3, set the state of the detection variable;

As mentioned above, the detection variables include two states of on and off, and the tester can choose according to needs.

SS4, start the BIOS, initialize each GPIO and hardware;

After starting the BIOS, each GPIO and hardware will be initialized, and the GPIO pin configuration will be completed after the initialization is completed;

SS5, judging the state of the detected variable; if the state of the detected variable is on, then enter step SS6, if the state of the detected variable is off, then enter step SS9;

That is, in the open state, the GPIO pin logic detection is performed, otherwise the detection is not performed, and the BIOS continues to be started normally.

It should be noted that step SS5-step SS8 are executed in the DXE stage of the BIOS startup process.

SS6, read the pin logic of each GPIO in turn;

SS7, compare the read pin logic with the standard logic in the pre-stored logic detection table, and judge whether the two are consistent;

After the detection, first read the pin logic of each GPIO, compare and match with the standard logic in the logic detection table after reading, and check whether the two are consistent. If they are consistent, it means that the GPIO configuration is correct. If they are inconsistent, it means that the GPIO configuration is correct. mistake.

It should be noted that each time a GPIO is read, a comparison and match can be performed.

SS8, output the comparison result, if the two are consistent, the GPIO configuration is normal, otherwise the GPIO configuration is abnormal;

After all comparisons are completed, print the results through the BIOS serial port. It should be noted that, when the read pin logic does not match the standard logic in the pre-stored logic detection table, the output result includes the read pin logic and the corresponding standard logic. In addition, if there is a situation where the read pin logic does not match the standard logic in the pre-stored logic detection table, the output result will show that the configuration is abnormal, and if all match, it will show that the configuration is normal.

SS9, continue to start the BIOS;

After the detection is completed, or when the detection is not performed, start the BIOS normally.

The method automatically completes the GPIO pin logic detection during the BIOS startup stage, so as to know whether the GPIO is configured correctly, the result display is intuitive, and the detection efficiency is high.

Embodiment two

As shown in FIG. 3 , on the basis of Embodiment 1, this embodiment provides a GPIO configuration detection device, which executes the method of Embodiment 1 after operation, including the following functional modules.

Initialization module 101: initialize each GPIO and hardware;

Pin logic reading module 102: read the pin logic of each GPIO in turn;

Pin logic comparison module 103: compare the read pin logic with the standard logic in the pre-stored logic detection table, and judge whether the two are consistent;

Result output module 104: output the comparison result, if the two are consistent, then the GPIO configuration is normal; otherwise, the GPIO configuration is abnormal.

The device runs during the BIOS boot process, wherein the pin logic reading module, pin logic comparison module, and result output module run in the DXE stage of the BIOS boot process, that is, the initialization of GPIO and hardware is completed during the initialization phase of the BIOS boot process configuration, and then detect the GPIO configuration in the DXE phase.

In addition, in this embodiment, the detection control function is pre-configured, and it is determined whether the detection function is enabled. Specifically, the device also includes the following functional modules.

Detection variable setting module 105: set the state of the detection variable; wherein the detection variable includes two states of on and off;

Detection variable state judging module 106: judge the state of detection variable; If the state of detection variable is open, then continue to start BIOS after running pin logic reading module, pin logic comparison module, result output module; If the state of detection variable is If it is closed, skip the pin logic reading module, pin logic comparison module, and result output module and continue to start the BIOS.

Embodiment Three

This embodiment provides a server. When the server is started, the method in Embodiment 1 is executed, and GPIO configuration detection is implemented during the server BIOS startup process.

The above disclosure is only a preferred embodiment of the present invention, but the present invention is not limited thereto, any non-creative changes that those skilled in the art can think of, and some improvements and modifications made without departing from the principle of the present invention , should fall within the protection scope of the present invention.

Claims (5)

1. A GPIO configuration detection method is characterized by comprising the following steps:

s1, initializing each GPIO and hardware;

s2, sequentially reading pin logics of all GPIOs;

s3, comparing the read pin logic with standard logic in a pre-stored logic detection table, and judging whether the read pin logic is consistent with the standard logic;

s4, outputting the comparison result, if the comparison result is consistent with the comparison result, normally configuring the GPIO, and if not, abnormally configuring the GPIO;

the method is executed in the BIOS starting process;

steps S2-S4 are executed in the DXE stage of the BIOS starting process;

the method also comprises the following steps before the step S1:

adding a detection variable in the BIOS, wherein the detection variable comprises an opening state and a closing state;

the following steps are also included after the step S1:

judging the state of the detection variable;

if the state of the detection variable is open, executing subsequent steps S2-S4, and continuing to start the BIOS after executing step S4;

and if the state of the detection variable is closed, skipping the steps S2-S4 and continuing to start the BIOS.

2. The GPIO configuration detection method of claim 1, wherein the step S4 outputs the comparison result, specifically by BIOS serial port printing.

3. The GPIO configuration detection method of claim 2, wherein if the read pin logic does not match the standard logic in the pre-stored logic detection table, the output result comprises the read pin logic and the corresponding standard logic.

4. A GPIO configuration detection device is characterized by comprising,

an initialization module: initializing each GPIO and hardware;

a pin logic reading module: sequentially reading pin logics of all GPIOs;

a pin logic comparison module: comparing the read pin logic with standard logic in a pre-stored logic detection table, and judging whether the read pin logic is consistent with the standard logic;

a result output module: outputting the comparison result, if the comparison result is consistent with the comparison result, the GPIO configuration is normal, otherwise, the GPIO configuration is abnormal;

the device operates during the BIOS startup process;

the pin logic reading module, the pin logic comparison module and the result output module operate in the DXE stage of the BIOS starting process;

the device also comprises a control unit for controlling the operation of the device,

a detection variable setting module: setting the state of a detection variable; wherein the sensed variable includes two states, on and off;

a detection variable state judgment module: judging the state of the detection variable; if the state of the detection variable is on, the BIOS is continuously started after the pin logic reading module, the pin logic comparison module and the result output module are operated; and if the state of the detection variable is closed, skipping over the pin logic reading module, the pin logic comparison module and the result output module and continuing to start the BIOS.

5. A server, characterized in that the method of any of claims 1-3 is performed at start-up.

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