CN117667252A

CN117667252A - Method, system, equipment and storage medium for opening system-guided watchdog

Info

Publication number: CN117667252A
Application number: CN202311607477.1A
Authority: CN
Inventors: 管彦广; 梁志强
Original assignee: Suzhou Metabrain Intelligent Technology Co Ltd
Current assignee: Suzhou Metabrain Intelligent Technology Co Ltd
Priority date: 2023-11-28
Filing date: 2023-11-28
Publication date: 2024-03-08

Abstract

The application provides a method, a system, equipment and a storage medium for opening a system-guided watchdog, wherein the method comprises the following steps: loading a preset starting white list when starting; before the system is started, acquiring each starting parameter corresponding to the starting parameter type in a preset starting white list; and determining that the watchdog function guided by the system is started according to the preset starting white list and the acquired starting parameters. The method aims at simplifying the production procedure of the server production detection link and improving the usability of the server research and development stage and the client maintenance stage.

Description

Method, system, equipment and storage medium for opening system-guided watchdog

Technical Field

The present disclosure relates to the field of computer devices, and in particular, to a method, a system, an apparatus, and a storage medium for opening a system-guided watchdog.

Background

In the field of cloud computing data centers, the requirements on stability, reliability and serverability of a server are strict. The system must be as reliable as possible without unexpected crashes, reboots or even physical damage to the system. This means that a reliable system must be able to self-repair for some small errors and to isolate errors that cannot be self-repaired as much as possible, ensuring that the rest of the system is operating properly. When a server encounters serious faults in the running of a System to cause the downtime of the System, the System is required to be restored to run by Operating a watchdog mechanism through an OS (Operating System); in addition, serious faults (such as CPU core or critical bus UCE) which cannot be operated by the Firmware in the BIOS starting operation stage of the server directly cause FW (Firmware) operation to be hang, and for the scene, the intervention of a BIOS starting watchdog function is also required, and the mainboard is reset/restarted after BIOS starting overtime; also, the process of loading the OS for BIOS boot may also encounter serious failures resulting in downtime, and this stage is typically attended by the watchdog function of the OS loader in order to ensure that the server can resume.

While the watchdog function of the OS loader encounters the following problems in actual use: (1) In the production process of the server, the production detection system does not support the function of the OS loader watchdog, the OS loader watchdog is required to be closed before production detection, and the OS watchdog is started after the production detection is finished, so that the production flow and the working procedures are increased; (2) The OS filling process usually does not carry out feeding of OS loader, when the system filling is carried out, the OS loader watchdog is closed for filling, so that the complexity of the system filling is increased; (3) The server may load an OS system that does not support the OS loader watchdog, and if the OS loader watchdog is not closed, the system is restarted all the time, and a common scenario is that different types of OS systems are loaded for testing in research and development tests.

Disclosure of Invention

In view of this, the present application provides a method, a system, a device and a storage medium for opening a system-guided watchdog. The method aims at simplifying the production procedure of the server production detection link and improving the usability of the server research and development stage and the client maintenance stage.

In a first aspect of an embodiment of the present application, a method for starting a system boot watchdog is provided and applied to a BIOS, where the method includes:

Loading a preset starting white list when starting;

before starting the system boot, acquiring each starting parameter corresponding to the starting parameter type in the preset starting white list;

and determining that the watchdog function guided by the system is started according to the preset starting white list and the acquired starting parameters.

Optionally, the starting parameter types include starting medium slot information, starting medium and starting path.

Optionally, the determining that the watchdog function guided by the system is turned on according to the preset starting whitelist and the obtained starting parameters includes:

comparing the obtained starting parameters with the starting parameters of the white list under the corresponding starting parameter types in the preset starting white list to obtain a comparison result;

and starting the watchdog function guided by the system under the condition that the starting parameters of each starting parameter type obtained by the comparison result characterization comprise target starting parameters existing in the preset starting white list.

Optionally, in the case that the type of the start parameter is start medium slot information, before starting the system boot, acquiring each start parameter corresponding to the type of the start parameter in the preset start white list includes:

Enumerating PCIe equipment in a drive execution environment stage to obtain enumeration results;

generating a device path of the PCIe device according to the PCIe device in the enumeration result;

and determining the starting medium slot position information of the PCIe equipment according to the equipment path of the PCIe equipment.

Optionally, in the case that the type of the start parameter is a start medium, before starting the system boot, acquiring each start parameter corresponding to the type of the start parameter in the preset start white list includes:

in a starting device selection stage, accessing the PCIe device through a device path of the PCIe device, and reading class ids in a configuration space of the PCIe device;

and determining a starting medium of the PCIe device according to the class id in the configuration space of the PCIe device.

Optionally, in the case that the type of the start parameter is a start path, before starting the system boot, acquiring each start parameter corresponding to the type of the start parameter in the preset start white list includes:

Searching each storage path to obtain the storage path of the startup file;

and determining the storage path of the startup item file as a startup path.

Optionally, before loading the preset starting white list at the starting time, the method further includes:

setting the preset starting white list which is built in advance as a default white list in the BIOS;

or configuring the preset starting white list which is built in advance to the setup of the BIOS.

Optionally, in the case that the preset startup whitelist is configured to the setup of the BIOS, the method further includes:

updating the preset starting white list;

configuring and storing an updated preset starting white list through a setup of the BIOS;

and after restarting the BIOS, starting the updated preset starting white list.

In a second aspect of embodiments of the present application, there is provided a system for directing the opening of a watchdog, the system comprising:

the preset starting white list acquisition module is used for loading a preset starting white list when starting;

the starting parameter acquisition module is used for acquiring each starting parameter corresponding to the starting parameter type in the preset starting white list before starting the system boot;

And the watchdog function control module is used for determining that the watchdog function guided by the system is started according to the preset starting white list and the acquired starting parameters.

In a third aspect of embodiments of the present application, the present application provides an electronic device, including: a processor, a memory and a computer program stored on the memory and running on the processor, which when executed by the processor performs the steps in the system guided watchdog opening method according to the first aspect of the present application.

In a third aspect of embodiments of the present application, the present application provides a computer non-volatile readable storage medium having stored thereon a computer program which, when executed by a processor, implements steps in a method for opening a system-guided watchdog as described in the first aspect of the present application.

Aiming at the prior art, the application has the following advantages:

the method for starting the system boot watchdog is applied to a BIOS (BasicInput Output System basic input output system), and firstly, when the system boot (namely starting an OS loader) is started, a preset starting white list constructed in advance is obtained; acquiring each starting parameter corresponding to the starting parameter type in the preset starting white list in the process of starting system guidance; and determining whether each starting parameter accords with the condition of starting the system-guided watchdog function according to the preset starting white list and each starting parameter obtained, and starting the system-guided watchdog function when the starting parameter accords with the condition. Therefore, by introducing a preset starting white list which is built in advance, acquiring relevant starting parameters in the process of starting the OS loader by the BIOS, comparing the acquired starting parameters with the starting parameters in the preset starting white list, determining whether the scene of starting the OS loader currently meets the condition of starting the watchdog function of the OS loader or not by the BIOS according to a comparison result, and starting and closing the watchdog function of the OS loader based on the determination result, so that an engineering person does not need to start or close the corresponding watchdog function of the OS loader according to the scene of actually starting the OS loader, thereby simplifying the production procedure of a server production detection link and improving the usability of a server research and development stage and a client maintenance stage.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a flowchart of a method for opening a system-guided watchdog according to an embodiment of the present application;

FIG. 2 shows a logic relationship diagram of each unit in a method for opening a system-guided watchdog according to an embodiment of the present application;

FIG. 3 is another flowchart of a method for opening a system-guided watchdog according to an embodiment of the present application;

fig. 4 is a schematic diagram of a system for opening a system-guided watchdog according to an embodiment of the present application;

fig. 5 is a schematic diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings.

Before explaining the present application, related terms related to the following are explained to facilitate understanding of the embodiments.

UEFI: the unified extensible firmware interface is a personal computer system specification, is used for defining a software interface between an operating system and system firmware, belongs to a new BIOS, and is responsible for power-on self-test (POST), connecting the operating system and providing an interface for connecting the operating system and hardware.

OS loader: the operating system boots the load.

NVMe: NVM Express (NVMe), or nonvolatile memory host controller interface specification (english: nonVolatile Memory Host Controller Interface Specification, abbreviation: NVMHCIS), is a logical device interface specification. It is a bus transport protocol specification (equivalent to an application layer in a communication protocol) based on a device logic interface, similar to AHCI, for accessing non-volatile memory media attached through a PCI Express (PCIe) bus.

PXE: the pre-boot execution environment (Preboot eXecution Environment, PXE), also referred to as a pre-execution environment, provides a mechanism for booting a computer using a network interface (Network Interface). This mechanism allows the computer to boot independently of the local data storage device (e.g., hard disk) or the locally installed operating system.

PCI-Express (peripheral component interconnect express) is a high-speed serial computer expansion bus standard.

Fig. 1 is a flowchart of a method for opening a system boot watchdog according to an embodiment of the present application, as shown in fig. 1, the method is applied to a BIOS (Basic Input Output System ), and the method includes:

step S1: and loading a preset starting white list when starting.

In this embodiment, the starting of the operating system in the device requires loading an operating system boot program (i.e., OS loader) by the BIOS to control the operating system to start. After BIOS is started, loading a preset starting white list which is built in advance, wherein the preset starting white list stores at least one starting parameter type of white list starting parameter which is used for determining whether the current operating system starting process meets the condition of controlling the start of the watchdog function of the OS loader.

Step S2: before the system boot is started, acquiring each starting parameter corresponding to the starting parameter type in the preset starting white list.

In this embodiment, when the system boot (i.e., the OS loader) is started, it is required to determine whether the BIOS is required to control the start of the watchdog function of the OS loader, so that before the system boot is started, the BIOS obtains each start parameter having the same type as the start parameter in the preset start whitelist. For example, in the case where the startup parameter types in the preset startup whitelist include whitelist startup parameters of type a and type b, each startup parameter belonging to type a and each startup parameter belonging to type b are acquired by the BIOS.

Step S3: and determining that the watchdog function guided by the system is started according to the preset starting white list and the acquired starting parameters.

In this embodiment, after loading the preset starting whitelist and obtaining each starting parameter with the same type as the starting parameter in the preset starting whitelist through step S1 and step S2, the BIOS determines whether to start the watchdog function of the system boot according to the relationship between each obtained starting parameter and each starting parameter of the whitelist in the preset whitelist. Under the condition that the BIOS determines that the watchdog function of the system guide needs to be started, directly controlling the start of the watchdog function of the system guide; and in the case that the BIOS determines that the system-guided watchdog function is not required to be started, the system-guided watchdog function is directly controlled not to be started.

The method for starting the system boot watchdog is applied to a BIOS (BasicInput Output System basic input output system), and firstly, when the system boot (namely an OS loader) is started, a preset starting white list constructed in advance is obtained; acquiring each starting parameter corresponding to the starting parameter type in the preset starting white list in the process of starting system guidance; and determining whether to start the watchdog function guided by the system according to the preset starting white list and the obtained starting parameters. Therefore, by introducing a preset starting white list which is built in advance, acquiring relevant starting parameters in the process of starting the OS loader by the BIOS, comparing the acquired starting parameters with the starting parameters in the preset starting white list, and determining whether the current scene of starting the OS loader needs to start the watchdog function of the OS loader or not by the BIOS according to the comparison result, the engineering personnel does not need to start or close the corresponding watchdog function of the OS loader according to the actual scene of starting the OS loader, thereby simplifying the production procedure of the server production detection link and improving the usability of the server research and development stage and the client maintenance stage.

In combination with the above embodiment, in an implementation manner, the embodiment of the application further provides a method for opening the system-guided watchdog. In the method for opening the system-guided watchdog, the starting parameter types in the preset starting white list comprise starting medium slot position information, starting medium and starting path.

In this embodiment, the type of the start parameter included in the preset start whitelist that is pre-built in the present application preferably includes start medium slot information, start medium and start path at the same time. The starting media refer to various media required to be started by the operating system, including but not limited to USB starting media, SSD/HDD starting media, PXE starting media, CDROM starting media and the like, wherein SSD/HDD comprises an SAS/SATA HDD disk and an NVMe SSD disk; the boot media slot information refers to a plurality of hardware ports on the server, which can be used as boot media access ports of an OS (i.e., an operating system), for example, there may be 3 USB interfaces, 2 m.2nvme slots, a plurality of network ports supporting PXE functions, etc. on the server, where the ports have corresponding slot codes, and the boot media of the OS (i.e., the operating system) can perform the boot of the OS through the ports, for example, in the case where the boot media is USB, the USB boot media can boot the OS through the USB interfaces; the boot path refers to a storage path corresponding to a boot item file corresponding to an OS loader, for example: EFI/redhat/osloader wdt/grubx64.EFI. For example, the types of the starting parameters included in the preset starting whitelist which is pre-built in the application include the starting medium slot information, the starting medium and the starting path, the PXE starting medium and the NVMe starting medium are stored in the preset starting whitelist to be used as the whitelist starting medium, the slot information of the first slot in the 2 pieces of m.2 starting medium slot information is stored in the preset starting whitelist to be used as the whitelist starting medium slot information, and the "/EFI/redhat/osloader wdt/grubx64.EFI" starting path is stored in the preset starting whitelist to be used as the whitelist starting path, and the whitelist starting medium, the whitelist starting medium slot information and the whitelist starting path are all called whitelist starting parameters.

In this embodiment, the type of the starting parameter included in the preset starting whitelist previously constructed in this application may also include only any one of the starting medium slot information, the starting medium and the starting path, or may include only any two of the starting medium slot information, the starting medium and the starting path.

In combination with the above embodiment, in an implementation manner, the embodiment of the application further provides a method for opening the system-guided watchdog. In the system-guided watchdog opening method, step S3 may include steps S31 to S32:

step S31: and comparing the obtained starting parameters with the starting parameters of the white list under the corresponding starting parameter types in the preset starting white list to obtain a comparison result.

In this embodiment, the type of the starting parameter in the preset starting whitelist may only include any one of the starting medium slot information, the starting medium and the starting path, or may only include any two of the starting medium slot information, the starting medium and the starting path, or may also include all three of the starting medium slot information, the starting medium and the starting path.

In this embodiment, when comparing the acquired starting parameter with the white list starting parameter in the preset starting white list, the same starting parameter type is compared, for example, the acquired starting medium is compared with the white list starting medium in the preset starting white list, the acquired starting medium slot position information is compared with the white list starting medium slot position information in the preset starting white list, and the acquired starting path is compared with the white list starting path in the preset starting white list.

And in the case that the type of the starting parameter in the preset starting white list comprises a starting medium, the starting medium for starting the operating system, such as any one of a USB starting medium, a PXE starting medium, an NVMe SSD starting medium and the like, is acquired before the BIOS starts the system.

And under the condition that the type of the starting parameter in the preset starting white list comprises the starting medium slot information, the starting medium slot information is acquired before the BIOS starts the system to boot. In the X86 system server, the boot media port is typically a PCIe device port, so the present application uses BDF information of the PCIe device as slot information to uniquely identify different boot media slot information in the server. BDF information of PCIe devices consists of PCIe Bus, PCIe Device and Functions, for example, BDF information is 0000:01:00.0 represents PCIe devices located in Bus0, device1, and Func0 slots.

And under the condition that the type of the starting parameters in the preset starting white list comprises a starting path, acquiring a corresponding starting path before the BIOS starts the system to boot, wherein the starting path is a storage path where the starting item file is located.

In this embodiment, when the type of the start parameter in the preset start white list includes a start medium, the start medium acquired before the BIOS starts the system boot is compared with each white list start medium included in the preset start white list, so as to obtain a corresponding comparison result.

The white list starting media included in the preset starting white list include a PXE starting media and an NVMe starting media, the starting media obtained before the BIOS starting system is guided include a USB starting media and a PXE starting media, and at this time, the obtained USB starting media and PXE starting media are compared with the PXE starting media and the NVMe starting media in the preset starting white list, so as to obtain a comparison result.

In this embodiment, when the type of the start parameter in the preset start white list includes start medium slot information, the start medium slot information acquired before the BIOS starts the system boot is compared with each white list start medium slot information included in the preset start white list, so as to obtain a corresponding comparison result.

For example, the general server may configure 3 USB interface slots, 2 m.2nvme slots, and a plurality of network port slots supporting PXE functions, and in this example, the slot information of the first slot of the 2 m.2nvme slots and the slot information of all the network port slots are determined as the white list start medium slot information in the preset start white list. The slot information of the starting medium acquired before the BIOS starts the system to guide is the slot information of the second slot in the 2 m.2NVMe slots and the slot information of the slot of the network port. And comparing the acquired slot position information of the second slot position in the 2 m.2NVMe slot positions with the slot position information of the one network port slot position with the slot position information of each white list starting medium in the preset starting white list to obtain a comparison result.

In this embodiment, when the type of the start parameter in the preset start white list includes a start path, the start path obtained before the BIOS starts the system boot is compared with each white list start path in the preset start white list, so as to obtain a corresponding comparison result.

For example, the server may start an operating system through the BIOS in different manners, such as starting a local operating system through the BIOS, or starting an operating system through the BIOS based on a PXE starting medium using a network interface, or starting an operating system through the BIOS based on an NVMe starting medium, where storage paths of used startup item files are different when the BIOS starts a corresponding operating system in different manners, so that by excluding storage paths of some startup item files from a preset startup whitelist, a startup manner for operating system startup through some startup item files may be automatically controlled by the BIOS without starting a watchdog function guided by the system. In this example, a startup path "/EFI/redhat/osloader_ wdt/grubx64.EFI" is determined as a white list startup path in a preset startup white list, the startup path obtained before the BIOS startup system boots is "/EFI/redhat/osloader_ wdt/grubx64.EFI", and at this time, the obtained startup path is compared with the white list startup path in the preset startup white list, so as to obtain a corresponding comparison result.

Step S32: and starting the watchdog function guided by the system under the condition that the starting parameters of each starting parameter type obtained by the comparison result characterization comprise target starting parameters existing in the preset starting white list.

In this embodiment, in the case that the type of the starting parameter in the preset starting whitelist includes only one type of starting parameter (for example, includes only a starting medium, or includes only starting medium slot information, or includes only a starting path), when each starting parameter obtained by comparing the result characterization includes a target starting parameter existing in the preset starting whitelist, a watchdog function guided by the BIOS automatic control system is started.

The preset starting white list only comprises a starting parameter type of starting media, meanwhile, the white list starting media are PXE starting media and NVMe SSD starting media, the starting media acquired before the BIOS starting system is guided are USB starting media and PXE starting media, at the moment, the acquired USB starting media and PXE starting media are compared with each white list starting media in the preset starting white list, the acquired comparison result is that the two acquired starting media comprise PXE starting media in the preset starting white list, the PXE starting media are target starting media, at the moment, the starting media identifier of the OS loader is set to true by default false, and at the moment, the BIOS automatically controls the watchdog function guided by the starting system.

The preset starting white list only includes a starting parameter type of starting medium slot information, meanwhile, the white list starting medium slot information is slot information of a first slot position and slot information of all network port slots in 2 m.2NVMe slots of a server, the starting medium slot information acquired before the BIOS starting system is guided is slot information of 1 network port slot and slot information of a second slot position in 2 m.2NVMe slots, at this time, the acquired slot information of the network port slots is slot information of a target starting medium and slot information of the second slot position in 2 m.2NVMe slots are compared with each white list starting medium slot information in the preset starting white list, and because the slot information of all network port slots exists in the preset starting white list, the acquired comparison result is that the acquired slot information of each starting medium slot position includes the network port slot information in the preset starting white list, the slot information of the network port slot is the target starting medium slot information, at this time, and the error function of the system is automatically guided by a default, and the error function of the system is started.

For example, the preset starting white list only includes the starting parameter type of the starting path, meanwhile, the white list starting path is "/EFI/redhat/osloader_ wdt/grubx64.EFI", the starting path obtained before the BIOS starting system is booted is "/EFI/redhat/osloader_ wdt/grubx64.EFI", at this time, the obtained starting path is compared with each white list starting path in the preset starting white list, the obtained comparison result is that the obtained starting path exists in the preset starting white list, at this time, the starting path identifier of the OS loader is set to true by default false, at this time, the BIOS automatically controls and starts the watchdog function guided by the system.

In this embodiment, in the case that the startup parameter types in the preset startup whitelist include three or any two startup parameter types, when the startup parameter under each startup parameter type obtained by comparing the result characterization includes the target startup parameter existing in the preset startup whitelist, the watchdog function guided by the IOS automatic control system is started.

For example, the starting parameter types in the preset starting white list include starting medium and starting medium slot information, meanwhile, the white list starting medium is a PXE starting medium and an NVMe SSD starting medium, the white list starting medium slot information is slot information of a first slot of 2 m.2NVMe slots, the starting medium acquired before the BIOS starting system guides is an NVMe SSD starting medium and a USB starting medium, and the acquired starting medium slot information is slot information of the first slot of 2 m.2NVMe slots and slot information of one network port slot. At the moment, the obtained NVMeSSD starting medium and the USB starting medium are compared with a white list starting medium in a preset starting white list, and the obtained slot information of the first slot in the 2 m.2NVMe slots and the slot information of one network port slot are compared with the white list starting medium slot information in the preset starting white list. The comparison result obtained at this time is that the obtained plurality of starting media have the NVMe SSD starting media existing in the preset starting white list, at this time, the NVMe SSD starting media are the target starting parameters existing in the preset starting white list under the starting parameter type of the starting media, and meanwhile, the obtained plurality of starting media slot information have the slot information of the first slot of the 2 m.2NVMe slots existing in the preset starting white list, at this time, the slot information of the first slot of the 2 m.2NVMe slots is the target starting parameter existing in the preset starting white list under the starting parameter type of the starting media slot information. Therefore, the default false is set as true for the boot media identifier of the OSloader, and the default false is set as true for the boot media slot information identifier of the OS loader, and because the identifiers corresponding to all the two types of boot parameters included in the preset boot white list are true, the BIOS automatically controls and starts the watchdog function guided by the system. If false exists in the corresponding identifiers of all the starting parameter types in the preset starting white list, the BIOS will not control the start of the watchdog function guided by the system.

In this embodiment, in the case where the types of the startup parameters in the preset startup whitelist include a plurality of types, the types of the startup parameters for performing the comparison operation may have a sequence. For the starting parameter type of the first comparison operation (it should be understood that the starting parameter type of the first comparison operation may be any starting parameter type), after each starting parameter of the starting parameter type of the first comparison operation is obtained, the starting parameter is compared with the white list starting parameter of the same starting parameter type in the preset starting white list to obtain a comparison result, when the obtained comparison result characterizes that each starting parameter does not include the target starting parameter existing in the preset starting white list, the subsequent comparison operation may be ended, and the watchdog function which is not started by the system is directly determined. The sequence may be optionally combined, and is not particularly limited herein, for example, when the type of the starting parameter in the preset starting white list includes a starting medium, starting medium slot position information and a starting path, the sequence may be that the obtained starting mediums are compared with the white list starting mediums in the preset starting white list, then the obtained starting medium slot position information is compared with the white list starting medium slot position information in the preset starting white list, and finally the obtained starting path is compared with the white list starting path in the preset starting white list; or comparing the obtained starting paths, then comparing the obtained starting media, finally comparing the obtained starting media slot position information, and the like. Under the condition that the starting parameter types in the preset starting white list comprise a plurality of types, various starting parameter types for comparison operation can be performed simultaneously, whether the watchdog function guided by the system is started or not is comprehensively determined according to a plurality of comparison results corresponding to the various starting parameter types, if the identifications corresponding to all the starting parameter types are finally obtained, whether all the identifications are all the features is determined, and the BIOS controls the watchdog function guided by the system to be started only when all the identifications are the features.

For example, for the sake of understanding the embodiments, the preset starting whitelist includes whitelist starting parameters a1, a2, a3 of a type of starting parameters, whitelist starting parameters B1, B2, B3 of a type of starting parameters, and whitelist starting parameters C1, C2, C3 of a type of starting parameters. The starting parameters of the type A starting parameters acquired by the BIOS before the system is started comprise a1 and a4, the starting parameters of the type B starting parameters comprise B2 and B4, and the starting parameters of the type C starting parameters comprise C1 and a5. Since the acquired starting parameters a1 and a4 include a1 existing in a preset starting white list, the identifier of the type of the A starting parameter of the OS loader is set to true by default false; since the acquired starting parameters B2 and B4 include B2 existing in the preset starting white list, the identifier of the type of the B starting parameter of the OS loader is set to true by default false; since the acquired startup parameters C1 and C5 include C1 existing in the preset startup white list, the identifier of the type of the C startup parameter of the OS loader is set to true by default false. Finally, the identification of the three types of starting parameters is wire, so that the BIOS automatically controls and starts the watchdog function of the system boot.

In this embodiment, for the problem that the OS loader watchdog function is not supported by the production detection system in the server production process, the OS watchdog is required to be turned off before the production detection, and the corresponding watchdog function is not turned on when the BIOS is controlled to be turned on because the USB startup white list is not present in the preset startup white list, and the process is automatically completed by the engineering staff after the preset startup white list is built and placed in the BIOS, without the need of the engineering staff to turn off the watchdog function first for each production detection, so that the production process of the server can be effectively detected.

In this embodiment, for the problem that the OS loader is usually not fed to the dog, when the system filling is performed, the OS loader watchdog needs to be closed first to perform filling, and the complexity of the system filling is increased.

In this embodiment, the server may load an OS system that does not support the OS loader watchdog, if the OS loader watchdog is not closed, the system is restarted all the time, and a common scenario is a problem that different types of OS systems are loaded for testing in development and testing, and because of different operating systems, the system generally has uniformity in a startup path and the like. For example, for the same OS system which does not support the OS loader watchdog, the starting paths are generally consistent, at this time, by the method for starting the system boot watchdog provided by the application, when the preset starting white list is built, the preset starting white list firstly comprises the starting parameter type of the starting path, and meanwhile, the starting paths on which the OS system which does not support the OS loader watchdog is excluded from the preset starting white list, when the server loads the OS system which does not support the OS loader watchdog, the BIOS will not start the watchdog function when controlling to start the system boot based on the preset starting white list, so that the system is prevented from being restarted all the time, and the process is automatically completed by the BIOS after the preset starting white list is built and placed in the BIOS, so that the usability of a customer maintenance stage can be effectively improved.

In this embodiment, by the method for opening the system boot watchdog provided by the present application, it may be ensured that the OS Loader watchdog is only opened for the OS system that opens the OS Loader and is inserted in the specific boot media on the specific boot media slot information, for example, the OS Loader watchdog is opened by the product operating system corresponding to the client (the boot path is different from other general OS), the boot path of the operating system is added to the preset boot whitelist, the OS is filled in the nvme system disk on m.2 _0 slot, and the m.2 _0 boot media slot and nvme boot media are excluded from the preset boot whitelist; the method solves the problems in the OS filling process (the OS filling process is usually carried out through a storage starting system such as a USB disk medium, a pxe medium, a CDROM medium and the like), the production detection problem and the system boot loading problem of the watchdog which does not support the OS loader.

In combination with the above embodiment, in an implementation manner, the embodiment of the application further provides a method for opening the system-guided watchdog. In the method for opening the system-guided watchdog, in the case that the type of the start parameter in the preset start whitelist includes start medium slot information, step S2 may include steps S21 to S23:

Step S21: and enumerating PCIe equipment in a drive execution environment stage to obtain enumeration results.

In this embodiment, the implementation manner for acquiring the boot media slot information before the BIOS boots the system is: the starting process of the operating system is started under the control of the BIOS, the whole process can involve a plurality of stages, the determination of the slot position information of the starting medium is performed in a DXE (Driver Execution Environment) stage, namely a stage of driving an execution environment, and the BIOS can enumerate PCIe devices in the stage to obtain enumeration results, wherein the enumeration results represent the PCIe devices needing to be started.

Step S22: and generating a device path of the PCIe device according to the PCIe device in the enumeration result.

In this embodiment, according to each PCIe Device in the enumeration result, a Device Path of each PCIe Device, that is, a Device Path of each PCIe Device, is generated.

Step S23: and determining the starting medium slot position information of the PCIe equipment according to the equipment path of the PCIe equipment.

In this embodiment, the Device Path of each PCIe Device includes slot information, that is, BDF information, of the corresponding PCIe Device. The BIOS obtains the Device Path of each PCIe Device, and extracts BDF information, that is, slot information, of each PCIe Device from the Device Path corresponding to the PCIe Device, thereby obtaining boot medium slot information of each PCIe Device, and at this time, the boot medium slot information connected with the boot medium of the operating system to be booted is also present in the obtained boot medium slot information of each PCIe Device.

In combination with the above embodiment, in an implementation manner, the embodiment of the application further provides a method for opening the system-guided watchdog. In the method for opening the system-guided watchdog, in the case that the type of the start parameter in the preset start whitelist includes a start medium, step S2 may include steps S201 to S204:

step S201: and enumerating PCIe equipment in a drive execution environment stage to obtain enumeration results.

In this embodiment, the implementation manner for acquiring the boot media before the BIOS boots the system is: the starting process of the operating system is started under the control of the BIOS, the whole process can involve a plurality of stages, the determination of a starting medium is performed in the stages DXE (Driver Execution Environment) and BDS (Boot Device Select), namely, the stage of driving the execution environment and starting the device selection, and the BIOS enumerates the PCIe device in the stage of driving the execution environment to obtain an enumeration result, wherein the enumeration result characterizes the PCIe device needing to be started.

Step S202: and generating a device path of the PCIe device according to the PCIe device in the enumeration result.

Step S203: and in the stage of starting device selection, accessing the PCIe device through the device path of the PCIe device, and reading class ids in the configuration space of the PCIe device.

In this embodiment, during the device selection stage, the BIOS accesses each PCIe device through a device path (DevicePath) of each PCIe device, and reads class ids in a PCIe configuration space of each PCIe device during the access.

Step S204: and determining a starting medium of the PCIe device according to the class id in the configuration space of the PCIe device.

In this embodiment, the class id in the PCIe configuration space of the PCIe device is a data structure defined by the PCIe standard protocol, and the relevant information in the data structure corresponds to a specific type of the boot media, so that the type of the boot media to each PCIe device, such as a USB boot media, a PXE boot media, or an NVMe SSD boot media, or the like, may be determined based on the class id in the PCIe configuration space of each PCIe device. Therefore, the class ids in the configuration space of each PCIe device are obtained, and the type of the starting medium to each PCIe device can be determined by identifying the corresponding class ids through the BIOS. The boot media of the operating system that needs to be booted at this time also exist in the boot media types of the PCIe devices obtained above.

In combination with the above embodiment, in an implementation manner, the embodiment of the application further provides a method for opening the system-guided watchdog. In the method for opening the system-guided watchdog, in a case where the type of the start parameter in the preset start whitelist includes a start path, step S2 may include steps S211 to S212:

step S211: and searching each storage path to obtain the storage path of the startup file.

In this embodiment, the OS is of various kinds, such as windows system, linux system, etc., and the linux system is of various kinds of open source or commercial systems, such as redhat, centos, kylinos, ubuntu, etc. The OS operating system currently supports the UEFI specification, and places the UEFI startup item file under a specific startup path, so the implementation of acquiring the startup path by the BIOS before booting the system is as follows: the starting process of the operating system is started by BIOS control, and the control process involves the startup item files needed by the startup system to be guided, so that the startup item files can be searched in a startup medium in the startup process of the BIOS control operating system, and when the startup item files are searched, the storage path of the startup item files is obtained.

Step S212: and determining the storage path of the startup item file as a startup path.

In this embodiment, the storage path in which the startup item file is located is determined as a startup path, and is used for subsequent determination whether to perform system-boot watchdog function startup.

In combination with the above embodiment, in an implementation manner, the embodiment of the application further provides a method for opening the system-guided watchdog. In the method for opening the system-guided watchdog, the method further includes step S01: setting the preset starting white list which is built in advance as a default white list in the BIOS; or configuring the preset starting white list which is built in advance to the setup of the BIOS.

In this embodiment, the preset starting white list built in advance in the present application may be directly set in the BIOS as a default white list, or the preset starting white list built in advance is configured in a setup interface of the BIOS.

In combination with the above embodiment, in an implementation manner, the embodiment of the application further provides a method for opening the system-guided watchdog. In the system boot watchdog starting method, in the case that the preset starting white list is configured to the setup of the BIOS, the method further includes steps S011 to S013:

Step S011: and updating the preset starting white list.

In this embodiment, under the condition that the preset starting white list constructed in advance is configured to the setup interface of the BIOS, the preset starting white list can be conveniently updated and adjusted, and first, a new preset starting white list is constructed by an engineering person, or an original preset starting white list is updated.

Step S012: and configuring and storing the updated preset starting white list through the setup of the BIOS.

In this embodiment, the setup interface of the BIOS is used to store a new preset starting whitelist constructed or a preset starting whitelist obtained by updating an original preset starting whitelist. Meanwhile, an OS Loader watchdog enabling option and an OS Loader watchdog timeout time setting option are designed in the setup.

Step S013: and after restarting the BIOS, starting the updated preset starting white list.

In this embodiment, after the BIOS is restarted, the new preset startup whitelist is started, or a preset startup whitelist obtained by updating the original preset startup whitelist is started.

In this embodiment, the method for opening the watchdog function is different according to different server designs, and in this application, a watchdog mechanism is implemented by using CPLD (Complex Programmable Logic Device), and the watchdog timeout time defaults to 5min. And setting a watchdog enabling register provided by the CPLD to enable the OS Loader watchdog through the CPLD IIC channel. Further, in the case of using the OSloader watchdog of the ipmi (Intelligent Platform Management Interface) standard, an enable OS Loader watchdog command may be issued to the BMC by an ipmi instruction. As shown in fig. 2, fig. 2 shows a logic relationship diagram of each unit in a method for opening a system boot watchdog according to an embodiment of the present application, as shown in fig. 2, a BIOS changes data in a register based on a CPLD to control opening and closing of a watchdog function of an OS Loader, and based on an on-off state of the watchdog function, an OS Loader is used to boot an operating system, and in this process, the boot opening of the operating system may be performed in a state where the watchdog function is opened, or the boot opening of the operating system may be performed in a state where the watchdog function is closed.

In this embodiment, after the operating system boots to kernel init, it is determined that the operating system has normally turned on to call and close the OS loader watchdog function. According to the closing method, because different servers are designed to be different in closing method, a CPLD is used for realizing a watchdog mechanism, and a watchdog closing register provided by the CPLD is set to close an OSLoader watchdog through a CPLD IIC channel. In addition, in the case of using the OS Loader watchdog of the ipmi standard, an OS Loader watchdog closing command may be issued to the BMC by an ipmi instruction.

In this embodiment, when the UEFI BIOS is down during the booting process after booting the product system OS, the OS fails to run to the kernel init and then closes the OS Loader watchdog stage, and the OS Loader watchdog will timeout, at this time, the CPLD or the BMC will restart the system to recover.

According to the method for starting the system guide watchdog, the preset starting whitelist comprising three starting parameter types is designed, so that the screening of starting conditions of the OS Loader watchdog function is realized, the OS Loader watchdog function is ensured to be started only for a specific OS starting medium, specific starting medium slot position information and a specific operating system which is started to support the OS Loader watchdog function, the problem that no watchdog is cared in the OS guide starting stage is solved, and the problem that an operating system cannot be used due to the fact that other OS starts which are met in production, research and development and OS filling scenes do not support the OS Loader watchdog function is solved. The reliability and the usability of the server are improved, the production procedure of the production detection link is simplified, and the usability of the research and development stage and the client maintenance stage is improved.

In this embodiment, fig. 3 is another flowchart of a method for starting a system boot watchdog according to an embodiment of the present application, as shown in fig. 3, in which a preset start-up white list is set in setup of the BIOS. After power-on, BIOS flash nvram (Non-Volatile Random Access Memory) is read to obtain setup configuration, and when the flash nvram is empty, a default preset starting white list is updated to the flash nvram. Three identifiers of the OS loader are set to default to false by using a preset start-up white list in the flash nvram. Before the BIOS starts system booting, device Path of each PCIe Device is obtained by enumerating the PCIe devices, and then access is carried out on each PCIe Device based on the Device Path of each PCIe Device to obtain class id corresponding to each PCIe Device. The method comprises the steps that respective starting media of each PCIe Device can be determined according to respective class ids of the PCIe devices, meanwhile, respective starting media slot information of each PCIe Device can be determined according to Device paths of the PCIe devices, and a BIOS retrieves a storage Path of a starting item file when an operating system is started, wherein the storage Path is a starting Path. Polling to check whether the respective starting medium of each PCIe device has a target starting medium existing in a preset starting medium white list, and if not, maintaining the starting medium identifier of the OS loader as false; if so, the boot media identification of the OS loader is updated to true. Continuing to poll and check whether the respective starting medium slot information of each PCIe device has target starting medium slot information existing in a preset starting medium white list, and if not, maintaining the starting medium slot information identification of the OS loader as false; if so, the startup media slot information identification of the OSloader is updated to true. Checking whether a starting path exists in a preset starting medium white list, and if not, maintaining a starting path representation of the OS loader as false; if the logical state exists, the starting path identification of the OS loader is updated to true, finally, whether three representations of the OS loader are true or not is judged, if true, the BIOS starts the watchdog function when the OS loader is started, and if not true, the BIOS does not start the watchdog function when the OS loader is started.

Based on the same inventive concept, a second aspect of the present application provides a system for guiding an opening system of a watchdog, as shown in fig. 4, the system 400 includes:

a preset starting whitelist obtaining module 401, configured to load a preset starting whitelist when starting;

a start-up parameter obtaining module 402, configured to obtain, before starting the system boot, each start-up parameter corresponding to a start-up parameter type in the preset start-up white list;

and the watchdog function control module 403 is configured to determine that the watchdog function guided by the system is turned on according to the preset starting whitelist and the obtained starting parameters.

Optionally, the startup parameter types in the startup parameter obtaining module 402 include startup media slot information, startup media, and startup path.

Optionally, the watchdog function control module 403 includes:

the comparison module is used for comparing the obtained starting parameters with the starting parameters of the white list under the corresponding starting parameter types in the preset starting white list to obtain comparison results;

and the watchdog function control sub-module is used for starting the watchdog function guided by the system under the condition that the starting parameters of each starting parameter type obtained by the comparison result characterization comprise target starting parameters existing in the preset starting white list.

Optionally, the starting parameter obtaining module 402 includes:

the first enumeration module is used for enumerating PCIe equipment in a driving execution environment stage under the condition that the starting parameter type is starting medium slot position information, and obtaining enumeration results;

the first device path determining module is used for generating a device path of the PCIe device according to the PCIe device in the enumeration result;

and the starting medium slot position information determining module is used for determining the starting medium slot position information of the PCIe equipment according to the equipment path of the PCIe equipment.

Optionally, the starting parameter obtaining module 402 includes:

the second enumeration module is used for enumerating PCIe equipment in the stage of driving the execution environment under the condition that the type of the starting parameter is a starting medium, and obtaining an enumeration result;

the second device path determining module is used for generating a device path of the PCIe device according to the PCIe device in the enumeration result;

the ID determining module is used for accessing the PCIe equipment through the equipment path of the PCIe equipment and reading class IDs in the configuration space of the PCIe equipment in the equipment selection starting stage;

the starting medium determining module is used for determining the starting medium of the PCIe equipment according to the class id in the configuration space of the PCIe equipment.

Optionally, the starting parameter obtaining module 402 includes:

the storage path determining module is used for obtaining the storage path of the startup item file by searching each storage path under the condition that the startup parameter type is the startup path;

and the starting path determining module is used for determining the storage path of the starting item file as a starting path.

Optionally, the system 400 further includes:

the preset starting white list setting module is used for setting the preset starting white list which is built in advance as a default white list in the BIOS; or configuring the preset starting white list which is built in advance to the setup of the BIOS.

Optionally, the system 400 further includes:

a preset starting white list first updating module, configured to update the preset starting white list under the condition that the preset starting white list is configured to a setup of the BIOS;

the second updating module of the preset starting white list is used for configuring and storing the updated preset starting white list through the setup of the BIOS;

and the preset starting white list starting module is used for starting the updated preset starting white list after restarting the BIOS.

Based on the same inventive concept, in a third aspect of the embodiments of the present application, as shown in fig. 5, fig. 5 is a schematic diagram of an electronic device provided in the embodiments of the present application. The present application provides an electronic device 500 comprising: a processor 501, a memory 502 and a computer program stored on and running on the processor, which when executed by the processor implements the steps in the system guided watchdog opening method as described in the first aspect of the present application.

Based on the same inventive concept, in a fourth aspect of the embodiments of the present application, the present application provides a computer non-volatile readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps in the system-guided watchdog opening method described in the first aspect of the present application.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer non-volatile readable storage medium to another computer non-volatile readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center via a wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means to another website, computer, server, or data center. The computer non-volatile readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. that are within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

1. A method for opening a system boot watchdog, applied to a BIOS, the method comprising:

loading a preset starting white list when starting;

2. The system guided watchdog opening method of claim 1, wherein the startup parameter types include startup media slot information, startup media, and startup path.

3. The method for opening a system-guided watchdog according to claim 2, wherein the determining that the system-guided watchdog function is opened according to the preset start whitelist and the obtained respective start parameters includes:

4. The method for opening a system boot watchdog according to claim 2, wherein, in the case that the boot parameter type is boot media slot information, the obtaining, before booting the system boot, each boot parameter corresponding to the boot parameter type in the preset boot whitelist includes:

5. The method for opening a system boot watchdog according to claim 2, wherein, in the case that the boot parameter type is a boot medium, the step of acquiring, before booting the system boot, each boot parameter corresponding to the boot parameter type in the preset boot whitelist includes:

6. The method for opening a system boot watchdog according to claim 2, wherein, in the case that the boot parameter type is a boot path, the step of acquiring each boot parameter corresponding to the boot parameter type in the preset boot whitelist before booting the system boot includes:

searching each storage path to obtain the storage path of the startup file;

and determining the storage path of the startup item file as a startup path.

7. A method of opening a system-guided watchdog as claimed in claim 3, wherein, at start-up, before loading a preset start-up whitelist, the method further comprises:

8. A system boot watchdog opening method according to claim 3, characterized in that in case the pre-built preset start-up whitelist is configured to setup of BIOS, the method further comprises:

updating the preset starting white list;

and after restarting the BIOS, starting the updated preset starting white list.

9. A system-guided watchdog opening system, the system comprising:

10. An electronic device, comprising: a processor, a memory and a computer program stored on the memory and running on the processor, which when executed by the processor performs the steps in the system-guided watchdog opening method of any of claims 1 to 8.

11. A computer non-transitory readable storage medium, having stored thereon a computer program which, when executed by a processor, implements the steps in the method of opening a system-guided watchdog according to any of claims 1 to 8.