CN115718628A - Low-temperature power-on self-starting method, system, device and medium of edge server - Google Patents

Abstract

The invention provides a low-temperature power-on self-starting method, a system, a device and a medium of an edge server, wherein the method comprises the following steps: after the power is on, the temperature of the server is monitored, so that the temperature of the server meets the starting condition; acquiring a flag bit through the MCU, and judging whether to send a starting signal to the CPU according to the flag bit; sending a starting signal to the CPU through the MCU; setting MCUFlag1 to be 1 through BIOS, and sending MCUFlag1 to MCU; the BIOS acquires the value of the current State After G3, and sets MCUFlag0 according to the acquired value; judging whether a shutdown action occurs at present; executing an S5CallBack function, and judging whether the value of the State After G3 is the Last Status; setting MCUFlag1 to be 0 through BIOS; and powering off the server. The invention can meet three requirements of automatically starting up the edge server when the edge server is electrified under the condition of low temperature, keeping the shutdown when the edge server is electrified and maintaining the state before the power-off by communicating the BIOS with the BMC and the MCU and storing the state mark by the EEPROM.

Description

Low-temperature power-on self-starting method, system, device and medium of edge server

technical field

The present invention relates to the field of computer technology, and more specifically relates to a low-temperature power-on self-starting method, system, device and medium of an edge server.

Background technique

At present, the method commonly used by the Intel X86 platform to automatically start the server when it is powered on is to modify the state of the option "State After G3" under BIOS SETUP. G3 indicates that the power supply status of the server is that the power supply is cut off, and the server is completely powered off. There are three options for this option, namely S0: after the server is powered on, it will start up by itself, and the CPU will run to the S0 state to load the BIOS code and boot into the system; the second state is S5: after the server is powered on, keep the CPU state as S5 , that is, the shutdown state; the third option is, last state: After the server is powered on, it will keep the state before the server is powered off, that is, before the server enters the G3 state. The server automatically starts up and enters the S0 state. If the server is in the shutdown state before the power is turned off, the server will remain in the S5 state when the power is turned on again.

However, the current scheme has the following shortcomings:

1. The implementation of this solution depends on the registers powered by the RTC, which are used to record the value of the option "State After G3" and to record the on/off status of the machine before power-on. After the server is powered on, the PCH is powered, and the ME in the PCH can determine whether to send a power-on signal to the CPU by judging the status of the registers, so as to control whether the server is powered on next time. If the battery voltage is too low, the status of the register cannot be maintained, and the server cannot be turned on or off according to the needs of the customer.

2. If the server is in a low-temperature environment, such as an edge server scenario, the low temperature of the machine may reach minus 40°C. Generally, in order to solve the problem of low-temperature environment, the MCU can send instructions to the CPU to notify the power-on after receiving the power-on button signal. Before, the ambient temperature was detected, and if the temperature was too low, the heater was enabled to heat the server. After the temperature reached the standard, a signal was sent to turn on the CPU. At this time, if it is set to power on automatically, the power is supplied to the PCH, and after the ME code is loaded internally, if the temperature does not reach the standard, the CPU has been controlled to start up and enters the S0 state. Other equipment in the server will not be able to start normally due to low temperature, and there will be a downtime or malfunction. unusual situation.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a low-temperature power-on self-starting method, system, device and medium of an edge server, communicate with BMC and MCU through BIOS, and store status flags in EEPROM, which can meet the needs of edge servers under low temperature conditions. There are three requirements: power on automatically, power on and keep off, and power on and maintain the state before power off.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a low-temperature power-on self-starting method for an edge server, comprising the following steps:

S1: After power-on, monitor the temperature of the server through the MCU to ensure that the temperature of the server meets the booting conditions;

S2: Obtain the flag bit MCUFlag0 and the flag bit MCUFlag1 through the MCU, and judge whether to send a power-on signal to the CPU according to the flag bit; if so, perform step S3; otherwise, maintain the current state until power off;

S3: Send a power-on signal to the CPU through the MCU, so that the CPU enters the S0 state;

S4: Initialize IPMI by loading BIOS, and set MCUFlag1 to 1;

S5: BIOS sends MCUFlag1 to MCU through BMC, and saves it;

S6: BIOS acquires the value of the current SetUp option State After G3, sets MCUFlag0 according to the acquired value, and saves it;

S7: Determine whether there is a shutdown action; if so, execute step S8, otherwise maintain the current state until power off;

S8: Execute the S5CallBack function through the BIOS, and judge whether the value of State After G3 is LastStatus; if so, execute step S9, otherwise maintain the current state until power off;

S9: set MCUFlag1 to 0 through BIOS, and save;

S10: Power off the server.

Further, step S1 includes:

After power-on, the MCU executes the temperature control program by loading the code, and obtains the temperature value through the built-in temperature sensor of the server, and compares the temperature value with the preset value;

If the temperature value is greater than or equal to the preset value, the power-on condition is met, and the next step is directly executed;

If the temperature value is less than the preset value, the start-up condition is not met, and the heating sheet heating action is continued, and the temperature is continuously monitored until the start-up condition is met.

Further, step S2 includes:

The MCU obtains the flag bit MCUFlag0 and the flag bit MCUFlag1 from the built-in EEPROM, and calculates the MCUFlag0 and MCUFlag1, and generates the calculation result;

If the calculation result is 1, a power-on signal is sent to the CPU, and then the CPU enters the S0 state; if the calculation result is 0, the state remains unchanged. At this time, the CPU is in the S5 state and remains until power off.

Further, step S4 includes:

Initialize the CPU, memory and IO devices through the BIOS, and load the boot system to start;

The BIOS initializes its own IPMI service to interact with the BMC. After the IPMI initialization is completed, the BIOS sets the current MCUFlag1 to 1, indicating that the current server is powered on.

Further, step S5 includes:

BIOS sends MCUFlag1 to BMC through IPMI command;

After receiving MCUFlag1, BMC establishes communication with MCU through I2C, sends MCUFlag1 to MCU, and stores it in the built-in EEPROM of MCU.

Further, step S6 includes:

BIOS obtains the value of the current SetUp option State After G3;

If the obtained value is S0 or Last Status, set MCUFlag0 to 1;

If the obtained value is S5, set MCUFlag0 to 0;

After the MCUFlag0 is set, the BIOS sends the MCUFlag0 to the MCU through the BMC, and stores it in the built-in EEPROM of the MCU.

Further, step S9 includes:

Set MCUFlag1 to 0 in the S5CallBack function through BIOS;

The BIOS sends MCUFlag1 to the MCU through the BMC, and stores it in the EEPROM built in the MCU.

Correspondingly, the present invention also discloses a low-temperature power-on self-starting system of an edge server, including: a temperature monitoring unit, which is used to monitor the temperature of the server through the MCU after power-on, so as to ensure that the temperature of the server meets the start-up conditions;

The first judging unit is used to obtain the flag bit MCUFlag0 and the flag bit MCUFlag1 through the MCU, and judge whether to send a power-on signal to the CPU according to the flag bit;

The boot unit is used to send a boot signal to the CPU through the MCU, so that the CPU enters the S0 state;

The flag bit setting unit is used to set the value of the flag bit MCUFlag0 and the flag bit MCUFlag1 through the BIOS; the flag bit storage unit is used to control the BIOS to send the MCUFlag0 and MCUFlag1 to the MCU through the BMC and save them;

The option acquisition unit is used to control the BIOS to acquire the value of the current SetUp option State After G3, set MCUFlag0 according to the acquired value, and save it;

The second judging unit is used to judge whether a shutdown action occurs currently;

The option recognition unit is used to execute the S5CallBack function through the BIOS, and judge whether the value of State After G3 is Last Status;

The power-off unit is configured to perform a server power-off operation.

Correspondingly, the present invention discloses a low-temperature power-on self-starting device for an edge server, including:

The memory is used to store the low-temperature power-on self-starting program of the edge server;

The processor is configured to implement the steps of the low-temperature power-on self-start method for the edge server as described in any one of the above when executing the low-temperature power-on self-start program of the edge server.

Correspondingly, the present invention discloses a readable storage medium, the low-temperature power-on self-start program of the edge server is stored on the readable storage medium, and the low-temperature power-on self-start program of the edge server is implemented when the processor executes The steps of the low-temperature power-on self-starting method for the edge server as described in any one of the above.

Compared with the prior art, the beneficial effect of the present invention is that: the present invention discloses a low-temperature power-on self-starting method, system, device and medium of an edge server, communicates with BMC and MCU through BIOS, and stores status flags in EEPROM to realize power-on There are three requirements: automatic power-on, power-on and power-off, and power-on and power-off status. The present invention uses EEPROM to store status flags, and the MCU monitors the status flags to execute control logic, avoiding that the register state cannot be maintained because the RTC voltage is too low, the ME in the PCH cannot send correct control signals, and cannot normally realize functions. At the same time, in the low-temperature scene, since the behavior of controlling the heating of the heating plate and the behavior of controlling the server State after G3 are both controlled by the MCU, this avoids the condition that the temperature of the server in the peripheral IO equipment does not meet the standard, and the power-on automatically Startup situation.

It can be seen that, compared with the prior art, the present invention has outstanding substantive features and remarkable progress, and the beneficial effects of its implementation are also obvious.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

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

Fig. 2 is a system structure diagram of a specific embodiment of the present invention.

In the figure, 1. temperature monitoring unit; 2. first judging unit; 3. boot unit; 4. flag bit setting unit; 5. flag bit storage unit; 6. option acquisition unit; 7. second judging unit; 8. Option identification unit; 9. Power-off unit.

Detailed ways

The core of the present invention is to provide a low-temperature power-on self-starting method for an edge server. In the prior art, because the RTC voltage is too low, the state of the register cannot be maintained, and the ME in the PCH cannot send a correct control signal, so it cannot be connected normally. Electric self-start function. In addition, if the server is in a low-temperature environment, other equipment of the server will not be able to start up normally due to the low temperature, and there will be downtime or abnormal functions.

The low-temperature power-on self-starting method of the edge server provided by the present invention communicates with the BMC and MCU through the BIOS, and stores the status flags in the EEPROM to realize three requirements: automatic power-on when power-on, power-on and power-off, and power-on to maintain the state before power-off . The present invention uses EEPROM to store status flags, and the MCU monitors the status flags to execute control logic, avoiding that the register state cannot be maintained because the RTC voltage is too low, the ME in the PCH cannot send correct control signals, and cannot normally realize functions. At the same time, in the low-temperature scene, the behavior of controlling the heating of the heating plate and the behavior of controlling the server Stateafter G3 are both controlled by the MCU, so as to avoid the situation that the temperature of the server in the peripheral IO equipment does not meet the standard, and the power-on self-starting Case.

In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one:

As shown in FIG. 1, this embodiment provides a low-temperature power-on self-starting method for an edge server, including the following steps:

S1: After power-on, monitor the temperature of the server through the MCU to ensure that the temperature of the server meets the power-on conditions.

Specifically, after power-on, the MCU executes the temperature control program by loading the code, and obtains the temperature value through the built-in temperature sensor of the server, and compares the temperature value with the preset value. If the temperature value is greater than or equal to the preset value, the start-up condition is met, and the next step is directly executed; if the temperature value is less than the preset value, the start-up condition is not met, and the heater heating action is continued, and the temperature is continuously monitored until the start-up condition is met.

S2: Obtain the MCUFlag0 and MCUFlag1 flags through the MCU, and judge whether to send a power-on signal to the CPU according to the flags; if so, perform step S3; otherwise, maintain the current state until power off.

Specifically, the MCU obtains the flag bit MCUFlag0 and the flag bit MCUFlag1 from the built-in EEPROM, performs AND calculation on the MCUFlag0 and MCUFlag1, and generates a calculation result. At this time, judge whether to send a power-on signal to the CPU according to the calculation result. If the calculation result is 1, then send a power-on signal to the CPU, and then the CPU enters the S0 state; if the calculation result is 0, the state remains unchanged, and the CPU is now S5. state, and maintain it until power off.

S3: Send a power-on signal to the CPU through the MCU, so that the CPU enters the S0 state.

S4: Initialize the IPMI by loading the BIOS, and set MCUFlag1 to 1.

First, initialize the CPU memory and IO devices through the BIOS, and load the boot system to start. Then, the BIOS initializes its own IPMI service to interact with the BMC. After the IPMI initialization is completed, the BIOS sets the current MCUFlag1 to 1, indicating that the current server is powered on.

S5: The BIOS sends the MCUFlag1 to the MCU through the BMC, and saves it.

This step specifically includes: the BIOS sends the MCUFlag1 to the BMC through the IPMI command; after the BMC receives the MCUFlag1, it establishes communication with the MCU through I2C, sends the MCUFlag1 to the MCU, and stores it in the built-in EEPROM of the MCU for use in the next judgment.

S6: The BIOS acquires the value of the current SetUp option State After G3, sets MCUFlag0 according to the acquired value, and saves it.

First, the BIOS obtains the value of the current SetUp option State After G3; if the obtained value is S0 or LastStatus, set MCUFlag0 to 1; if the obtained value is S5, set MCUFlag0 to 0; after the MCUFlag0 setting is completed, the BIOS will MCUFlag0 is sent to the MCU through the BMC and stored in the EEPROM built in the MCU.

What needs special explanation is:

If the power is turned off abnormally at this time, when the power is turned on again, the Last State of the server is S0, that is, the power-on state.

If the "State After G3" is set to "S0" or "Last Status", then the MCU should send a power-on signal to make the CPU enter S0. In fact, the values of MCUFlag0 and 1 are both 1 at this time, and the flag bit is calculated and the result is If it is 1, refer to step S2, it will execute the power-on action and enter the S0 state, which is in line with expectations.

If the "State After G3" is set to "S5", then the MCU should not send a power-on signal to keep the CPU in the S5 state. In fact, at this time, the value of MCUFlag0 is 0, and the value of MCUFlag1 is 1. The flag bits are compared with the calculated results If it is 0, refer to step S2, the power-on action will not be performed, and the CPU will maintain the state of S5, which is as expected.

S7: Determine whether there is a shutdown action; if yes, execute step S8; otherwise, maintain the current state until power off.

S8: Execute the S5CallBack function through the BIOS, and judge whether the value of State After G3 is LastStatus; if so, execute step S9, otherwise maintain the current state until power off.

S9: Set MCUFlag1 to 0 through BIOS, and save it.

First, set MCUFlag1 to 0 in the S5CallBack function through the BIOS; then, the BIOS sends MCUFlag1 to the MCU through the BMC, and stores it in the EEPROM built in the MCU.

It should be noted that if a normal shutdown occurs in the power-on state, the S5CallBack function of the BIOS will be triggered. At this time, the server will enter the S5 state. If you select "State After G3" as "LastStatus", it should be in the shutdown state (S5) after power on again. The Intel X86 architecture CPU is implemented by writing a fixed value to a fixed IO address to trigger an interrupt. The BIOS associates the interrupt with the custom S5CallBack function by registering an interrupt processing function. Registering an interrupt handler is a routine action of the BIOS. In the S5CallBack function, get the value of the current SetUp option "State After G3", if the value is "S0" or "Last Status", set MCUFlag1 to 0. If the value is S5, the BIOS does not take action, that is, MCUFlag1 remains at 1.

At this time, the CPU enters the S5 state after shutdown. If the power is abnormally turned off, when the power is turned on again, the LastState of the server at this time is S5, that is, the shutdown state.

If the "State After G3" is set to "S0", then the MCU should send a power-on signal to make the CPU enter S0. In fact, the values of MCUFlag0 and 1 are both 1 at this time, and the result of the calculation of the flag bits is 1. Refer to the steps S2 will execute the boot action and enter S0, which is in line with expectations.

If the "State After G3" is set to "S5", then the MCU should not send a power-on signal to keep the CPU at S5. In fact, the value of MCUFlag0 is 0, and the value of MCUFlag1 is 0 at this time. The flag bit is calculated and the result If it is 0, refer to step S2, the power-on action will not be performed, and the CPU will maintain the state of S5, which is as expected.

If the "State After G3" is set to "Last Status", then the MCU should not send a power-on signal to keep the CPU at S5. In fact, the value of MCUFlag0 is 1 and the value of MCUFlag1 is 0 at this time. The result is 0, referring to step S2, the booting action will not be performed, and the CPU will maintain the state of S5, which is as expected.

S10: Power off the server.

It can be seen that this method essentially provides a start-up process in which the edge server is powered on after being powered off abnormally, and powered off again abnormally. In a low temperature scenario, after an abnormal power failure and power on again, the edge server implements the execution process of the "State After G3" function. There are two states that the MCU needs to judge, MCUFlag0: State After G3, MCUFlag1: Last State. The values of these two Flags are determined by the BIOS and sent to the BMC via IPMI. The BMC communicates with the MCU through the I2C link, and the MCU stores them in its own EEPROM.

This embodiment provides a low-temperature power-on self-starting method for an edge server. It communicates with the BMC and MCU through the BIOS, and stores the status flags in the EEPROM to realize automatic startup after power-on, keep power-off when power-on, and maintain the state before power-off. kind of demand. This method uses the EEPROM to store the status flag, and the MCU monitors the status flag to execute the control logic, avoiding that the register state cannot be maintained due to the low voltage of the RTC, and the ME in the PCH cannot send a correct control signal and cannot normally realize the function. At the same time, in the low-temperature scene, since the behavior of controlling the heating of the heating plate and the behavior of controlling the server Stateafter G3 are both controlled by the MCU, this avoids the occurrence of conditions where the temperature of the server in the peripheral IO equipment does not meet the standard, and the power-on self-starting Case.

Embodiment two:

Based on Embodiment 1, as shown in FIG. 2 , the present invention also discloses a low-temperature power-on self-starting system for an edge server, including: a temperature monitoring unit 1 , a first judging unit 2 , a booting unit 3 , and a flag bit setting unit 4 , a flag storage unit 5, an option acquisition unit 6, a second judgment unit 7, an option identification unit 8 and a power-off unit 9.

The temperature monitoring unit 1 is used to monitor the temperature of the server through the MCU after the power is turned on, so as to ensure that the temperature of the server meets the starting conditions. The temperature monitoring unit 1 is specifically used for: after power-on, the MCU executes the temperature control program by loading the code, and obtains the temperature value through the built-in temperature sensor of the server, and compares the temperature value with the preset value; if the temperature value is greater than or equal to the preset value, Then the starting condition is met; if the temperature value is less than the preset value, the starting condition is not met, and the heater heating action is continued, and the temperature is continuously monitored until the starting condition is met.

The first judging unit 2 is configured to acquire flag bits MCUFlag0 and flag bits MCUFlag1 through the MCU, and judge whether to send a power-on signal to the CPU according to the flag bits. The first judging unit 2 is specifically used for: the MCU obtains the flag bit MCUFlag0 and the flag bit MCUFlag1 from the built-in EEPROM, and calculates the MCUFlag0 and MCUFlag1, and generates a calculation result; if the calculation result is 1, a power-on signal is sent to the CPU, The subsequent CPU enters the S0 state; if the calculation result is 0, the state remains unchanged. At this time, the CPU is in the S5 state and remains until power off.

The start-up unit 3 is configured to send a start-up signal to the CPU through the MCU, so that the CPU enters the S0 state.

The flag setting unit 4 is configured to set the values of the flag MCUFlag0 and the flag MCUFlag1 through the BIOS. Flag bit setting unit 4 is specifically used for: carrying out the initialization of CPU, internal memory and IO device by BIOS, and loading and booting system startup; The IPMI service of self initialization by BIOS, is used for interacting with BMC, after IPMI initialization is finished, BIOS sets current flag The value of bit MCUFlag0 and flag bit MCUFlag1.

The flag bit storage unit 5 is used to control the BIOS to send MCUFlag0 and MCUFlag1 to the MCU through the BMC and save them. The flag bit storage unit 5 is specifically used for: the BIOS sends MCUFlag0 and MCUFlag1 to the BMC through the IPMI command; after the BMC receives the MCUFlag0 and MCUFlag1, it establishes communication with the MCU through I2C, sends the MCUFlag0 and MCUFlag1 to the MCU, and stores them in the MCU built-in in EEPROM.

The option obtaining unit 6 is used to control the BIOS to obtain the value of the current SetUp option State After G3, set MCUFlag0 according to the obtained value, and save it.

The second judging unit 7 is used for judging whether a power-off action occurs currently.

The option recognition unit 8 is used to execute the S5CallBack function through the BIOS, and judge whether the value of State After G3 is Last Status.

The power-off unit 9 is configured to perform a server power-off operation.

This embodiment provides a low-temperature power-on self-starting system of an edge server, which communicates with BMC and MCU through BIOS, stores status flags in EEPROM, realizes automatic power-on when power-on, keeps power-off when power-on, and maintains the state before power-off. kind of demand.

Embodiment three:

This embodiment discloses a low-temperature power-on self-starting device for an edge server, including a processor and a memory; wherein, when the processor executes the low-temperature power-on self-starting program of the edge server stored in the memory, the following steps are implemented:

1. After power on, monitor the temperature of the server through the MCU to ensure that the temperature of the server meets the starting conditions.

2. Obtain the flag bits MCUFlag0 and MCUFlag1 through the MCU, and judge whether to send a power-on signal to the CPU according to the flag bits; if so, perform step 3; otherwise, maintain the current state until power off.

3. Send a power-on signal to the CPU through the MCU, so that the CPU enters the S0 state.

4. Initialize IPMI through BIOS loading, and set MCUFlag1 to 1.

5. The BIOS sends MCUFlag1 to the MCU through the BMC and saves it.

6. The BIOS obtains the value of the current SetUp option State After G3, sets MCUFlag0 according to the obtained value, and saves it.

7. Determine whether there is a shutdown action at present; if so, perform step 8, otherwise maintain the current state until power off.

8. Execute the S5CallBack function through the BIOS, and judge whether the value of State After G3 is LastStatus; if so, perform step 9, otherwise maintain the current state until power off.

9. Set MCUFlag1 to 0 through BIOS and save it.

10. Power off the server.

Further, the low-temperature power-on self-starting device of the edge server in this embodiment may also include:

The input interface is used to obtain the low-temperature power-on self-starting program of the edge server imported from the outside world, and save the obtained low-temperature power-on self-starting program of the edge server into the memory, and can also be used to obtain the self-starting program transmitted by the external terminal device Various instructions and parameters are transmitted to the processor, so that the processor can use the above-mentioned various instructions and parameters to carry out corresponding processing. In this embodiment, the input interface may specifically include, but not limited to, a USB interface, a serial interface, a voice input interface, a fingerprint input interface, a hard disk reading interface, and the like.

The output interface is used to output various data generated by the processor to a terminal device connected to it, so that other terminal devices connected to the output interface can obtain various data generated by the processor. In this embodiment, the output interface may specifically include but not limited to a USB interface, a serial interface, and the like.

The communication unit is used to establish a remote communication connection between the low-temperature power-on self-starting device of the edge server and the external server, so that the low-temperature power-on self-starting device of the edge server can mount the image file to the external server. In this embodiment, the communication unit may specifically include, but is not limited to, a remote communication unit based on wireless communication technology or wired communication technology.

The keyboard is used to obtain various parameter data or instructions input by the user by tapping the keycaps in real time.

The display is used for real-time display of relevant information in the process of locating the short circuit of the power supply line of the server.

The mouse can be used to assist the user to input data and simplify the user's operation.

Embodiment four:

This embodiment also discloses a readable storage medium, where the readable storage medium includes random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, Registers, hard disks, removable hard disks, CD-ROMs or any other form of storage media known in the technical field. The low-temperature power-on self-starting program of the edge server is stored in the readable storage medium. When the low-temperature power-on self-starting program of the edge server is executed by the processor, the following steps are implemented:

1. After power on, monitor the temperature of the server through the MCU to ensure that the temperature of the server meets the starting conditions.

2. Obtain the flag bits MCUFlag0 and MCUFlag1 through the MCU, and judge whether to send a power-on signal to the CPU according to the flag bits; if so, perform step 3; otherwise, maintain the current state until power off.

3. Send a power-on signal to the CPU through the MCU, so that the CPU enters the S0 state.

4. Initialize IPMI through BIOS loading, and set MCUFlag1 to 1.

5. The BIOS sends MCUFlag1 to the MCU through the BMC and saves it.

6. The BIOS obtains the value of the current SetUp option State After G3, sets MCUFlag0 according to the obtained value, and saves it.

7. Determine whether there is a shutdown action at present; if so, perform step 8, otherwise maintain the current state until power off.

8. Execute the S5CallBack function through the BIOS, and judge whether the value of State After G3 is LastStatus; if so, perform step 9, otherwise maintain the current state until power off.

9. Set MCUFlag1 to 0 through BIOS and save it.

10. Power off the server.

To sum up, the present invention communicates with BMC and MCU through BIOS, and stores status flags in EEPROM to meet the three requirements of edge server to automatically start when powered on, keep shutting down when powered on, and maintain the state before powering off.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other. As for the method disclosed in the embodiment, since it corresponds to the system disclosed in the embodiment, the description is relatively simple, and for related parts, please refer to the description of the method part.

Professionals can further realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software or a combination of the two. In order to clearly illustrate the possible For interchangeability, in the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

In the several embodiments provided by the present invention, it should be understood that the disclosed system, system and method can be implemented in other ways. For example, the system embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of systems or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, or each module may physically exist separately, or two or more modules may be integrated into one unit.

Similarly, each processing unit in each embodiment of the present invention may be integrated into one functional module, or each processing unit may exist physically, or two or more processing units may be integrated into one functional module.

The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known storage medium.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The self-starting method, system, device and readable storage medium of the edge server provided by the present invention are introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (10)

1. A low-temperature power-on self-starting method of an edge server is characterized by comprising the following steps:

s1: after the power is on, the temperature of the server is monitored through the MCU, and the temperature of the server is ensured to meet the starting condition;

s2: acquiring a flag MCUFlag0 and a flag MCUFlag1 through the MCU, and judging whether to send a starting signal to the CPU according to the flag; if yes, executing step S3; otherwise, the current state is maintained until power is off;

s3: sending a starting signal to the CPU through the MCU to enable the CPU to enter an S0 state;

s4: loading and initializing IPMI through BIOS, and setting MCUFlag1 as 1;

s5: the BIOS sends the MCUFlag1 to the MCU through the BMC and stores the MCUFlag 1;

s6: the BIOS acquires the value of the current SetUp option State After G3, sets MCUFlag0 according to the acquired value, and stores the value;

s7: judging whether a shutdown action occurs at present; if so, executing the step S8, otherwise, maintaining the current state until powering off;

s8: executing an S5CallBack function through the BIOS, and judging whether the value of State After G3 is Last Status; if yes, executing step S9, otherwise, maintaining the current state until powering off;

s9: setting MCUFlag1 to be 0 through BIOS, and storing;

s10: and powering off the server.

2. The low-temperature power-on self-starting method of the edge server according to claim 1, wherein the step S1 comprises:

after the power is on, the MCU executes a temperature control program by loading a code, acquires a temperature value by a built-in temperature sensor of the server, and compares the temperature value with a preset value;

if the temperature value is greater than or equal to the preset value, the starting condition is met, and the next step is directly executed;

if the temperature value is smaller than the preset value, the starting condition is not met, the heating action of the heating sheet is continuously executed, and the temperature is continuously monitored until the starting condition is met.

3. The low-temperature power-on self-starting method of the edge server according to claim 1, wherein the step S2 comprises:

the MCU acquires a flag bit MCUFlag0 and a flag bit MCUFlag1 from a built-in EEPROM, and performs AND calculation on the MCUFlag0 and the MCUFlag1 to generate a calculation result;

if the calculation result is 1, a starting signal is sent to the CPU, and the subsequent CPU enters an S0 state; if the calculation result is 0, the state is maintained, and the CPU is in an S5 state and is maintained to be powered down.

4. The low-temperature power-on self-starting method of the edge server according to claim 3, wherein the step S4 comprises:

initializing a CPU, an internal memory and IO equipment through a BIOS, and loading a boot system for starting;

initializing the IPMI service of the BIOS through the BIOS, and enabling the IPMI service to interact with the BMC, wherein after the IPMI initialization is completed, the BIOS sets the current MCUFlag1 to be 1, and the current server is in a starting state.

5. The low-temperature power-on self-starting method of the edge server according to claim 4, wherein the step S5 comprises:

the BIOS sends the MCUFlag1 to the BMC through an IPMI command;

after receiving the MCUFlag1, the BMC establishes communication with the MCU through the I2C, sends the MCUFlag1 to the MCU, and stores the MCUFlag1 in an EEPROM (electrically erasable programmable read-only memory) built in the MCU.

6. The low-temperature power-on self-starting method of the edge server according to claim 5, wherein the step S6 comprises:

the BIOS acquires the value of the current SetUp option State After G3;

if the obtained value is S0 or Last Status, setting MCUFlag0 to 1;

if the acquired value is S5, MCUFlag0 is set to 0;

after the MCUFlag0 is set, the BIOS sends the MCUFlag0 to the MCU through the BMC and stores the MCUFlag0 in the EEPROM built in the MCU.

7. The low-temperature power-on self-starting method of the edge server according to claim 6, wherein the step S9 comprises:

setting MCUFlag1 to be 0 in an S5CallBack function through a BIOS;

and the BIOS sends the MCUFlag1 to the MCU through the BMC and stores the MCUFlag1 in an EEPROM built in the MCU.

8. A low-temperature power-on self-starting system of an edge server is characterized by comprising:

the temperature monitoring unit is used for monitoring the temperature of the server through the MCU after the power is on, and ensuring that the temperature of the server meets the starting condition;

the first judgment unit is used for acquiring a flag bit MCUFlag0 and a flag bit MCUFlag1 through the MCU and judging whether to send a starting signal to the CPU according to the flag bit;

the starting unit is used for sending a starting signal to the CPU through the MCU so as to enable the CPU to enter an S0 state;

the flag bit setting unit is used for setting the values of a flag bit MCUFlag0 and a flag bit MCUFlag1 through a BIOS; the flag bit storage unit is used for controlling the BIOS to send the MCUFlag0 and the MCUFlag1 to the MCU through the BMC and store the MCUFlag0 and the MCUFlag 1;

an option obtaining unit, configured to control the BIOS to obtain a value of a current SetUp option State After G3, set MCUFlag0 according to the obtained value, and store the MCUFlag;

the second judgment unit is used for judging whether the shutdown action occurs currently;

the option identification unit is used for executing an S5CallBack function through the BIOS and judging whether the value of the State After G3 is the Last Status;

and the power-off unit is used for carrying out power-off operation on the server.

9. A low-temperature power-on self-starting device of an edge server is characterized by comprising:

the memory is used for storing a low-temperature power-on self-starting program of the edge server;

a processor, configured to implement the steps of the low-temperature power-on self-starting method of the edge server according to any one of claims 1 to 7 when executing the low-temperature power-on self-starting program of the edge server.

10. A readable storage medium, characterized by: the readable storage medium stores a low-temperature power-on self-starting program of the edge server, and the low-temperature power-on self-starting program of the edge server, when executed by the processor, implements the steps of the low-temperature power-on self-starting method of the edge server according to any one of claims 1 to 7.

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