CN113238778B - Method, system, equipment and medium for upgrading BIOS firmware - Google Patents

Abstract

The invention discloses a method, system, equipment and storage medium for upgrading BIOS firmware. The method includes: in response to updating the BIOS firmware, opening a BIOS image file and determining whether the BIOS image file includes attributes of the BIOS firmware; in response to The BIOS image file includes attributes of the BIOS firmware, determines the location of the signature in the BIOS image file, determines the firmware volume header based on the location of the signature, and obtains the offset and size of the actual partition based on the firmware volume header; Determine whether the actual partition is a configuration partition of the BIOS firmware based on the attributes of the firmware volume header; and in response to the actual partition being a configuration partition of the BIOS firmware, use the offset and size to The configuration partition of the BIOS firmware is updated. By decoupling from the BIOS, the present invention eliminates the need for the BMC to be unable to retain the configuration when updating the BIOS firmware due to changes in the BIOS configuration partition offset, and can also completely retain all configuration items of the BIOS.

Description

A method, system, device and medium for upgrading BIOS firmware

Technical field

The present invention relates to the field of servers, and more specifically, to a method, system, computer equipment and readable medium for upgrading BIOS firmware.

Background technique

Current servers, regardless of Intel or AMD (Advanced Micro Devices, AMD) platforms, use BIOS (Basic Input/Output System) firmware to enable the server. In addition to updating BIOS firmware through OS (Operating System, operating system) or UEFI (Unified Extensible Firmware Interface, unified extensible firmware interface) shell (shell) related tools, you can generally also update BIOS firmware through BMC (Baseboard Management Controller, baseboard management control) remote BIOS firmware update. In addition to full (all) BIOS firmware update, it can theoretically also support retaining BIOS related configurations. However, there is currently no way to effectively retain all settings related to BIOS configuration retention. It is often necessary to communicate with the BIOS to customize the configuration items that can be retained, or if there is a flash (flash memory) layout (layout) of the BIOS The configuration offset changes the position, and BMC has no way to completely guarantee that the BIOS configuration can be preserved when updating the BIOS firmware.

The current method is to find the fixed offset by informing the BIOS engineer in advance. This design forces the BMC and BIOS to be unable to be decoupled. As long as the BIOS changes the offset due to configuration item updates, the BMC must also be updated simultaneously. Even if BIOS configuration items are customized through communication between BIOS and BMC, BMC and BIOS cannot be decoupled, or all configuration items cannot be retained.

Contents of the invention

In view of this, the purpose of embodiments of the present invention is to propose a method, system, computer equipment and computer-readable storage medium for upgrading BIOS firmware. The present invention obtains the offset and size of the actual partition through the firmware volume header, and uses the offset The offset and size are used to update the configuration partition of the BIOS firmware to achieve decoupling from the BIOS. There is no need for the BMC to be unable to retain the configuration when updating the BIOS firmware due to changes in the offset of the BIOS configuration partition, and the BIOS can also be completely retained. All configuration items.

Based on the above purpose, one aspect of the embodiment of the present invention provides a method for upgrading BIOS firmware, including the following steps: in response to updating the BIOS firmware, opening the BIOS image file and determining whether the BIOS image file includes attributes of the BIOS firmware. ; In response to the BIOS image file including the attributes of the BIOS firmware, determine the location of the signature in the BIOS image file, determine the firmware volume header based on the location of the signature, and obtain the offset of the actual partition based on the firmware volume header and size; determining whether the actual partition is a configuration partition of the BIOS firmware based on the attributes of the firmware volume header; and in response to the actual partition being a configuration partition of the BIOS firmware, using the offset and size Update the configuration partition of the BIOS firmware.

In some implementations, the method further includes: assigning corresponding identifiers to different partitions in the BIOS firmware, creating an attribute table according to the identifiers, and synchronizing the attribute table to the BIOS image file.

In some embodiments, determining the location of the signature in the BIOS image file includes: matching signatures in sequence from the head to the tail of the BIOS image file, and in response to a successful match, recording the signature in the BIOS image file. The location in the file.

In some embodiments, determining the firmware volume header according to the location of the signature includes: determining a mapping relationship of the signature, and determining the firmware volume header based on the location of the signature and the mapping relationship.

In some embodiments, determining whether the actual partition is a configuration partition of the BIOS firmware based on the attributes of the firmware volume header includes: determining whether an identifier of the configuration partition exists in the attribute table in the image file.

In some embodiments, the method further includes: in response to the existence of multiple BIOS image files, reading the timestamp corresponding to the offset and size of the actual partition in each BIOS image file, and determining the time stamp for updating based on the timestamp. BIOS image file.

In some embodiments, determining the BIOS image file for update based on the timestamp includes: in response to an abnormality in the BIOS firmware after the update, restoring the update item and determining a new BIOS for update based on the timestamp again. Mirror file.

Another aspect of the embodiment of the present invention provides a system for upgrading BIOS firmware, including: an opening module configured to respond to updating the BIOS firmware, opening a BIOS image file and determining whether the BIOS image file includes BIOS firmware. attributes; a collection module configured to respond to the BIOS image file including attributes of the BIOS firmware, determine the location of the signature in the BIOS image file, determine the firmware volume header according to the location of the signature, and determine the firmware volume header according to the location of the signature. header to obtain the offset and size of the actual partition; a judgment module configured to judge whether the actual partition is a configuration partition of the BIOS firmware based on the attributes of the firmware volume header; and an execution module configured to respond to the The actual partition is a configuration partition of the BIOS firmware, and the offset and size are used to update the configuration partition of the BIOS firmware.

In yet another aspect of the embodiment of the present invention, a computer device is provided, including: at least one processor; and a memory, where the memory stores computer instructions that can be run on the processor, and the instructions are generated by the The steps to implement the above method are implemented when the processor executes.

In another aspect of the embodiment of the present invention, a computer-readable storage medium is also provided. The computer-readable storage medium stores a computer program that implements the above method steps when executed by a processor.

The present invention has the following beneficial technical effects: it obtains the offset and size of the actual partition through the firmware volume header, and uses the offset and size to update the configuration partition of the BIOS firmware, thereby achieving decoupling from the BIOS without having to configure the partition for the BIOS. The change in offset causes BMC to be unable to retain the configuration when updating the BIOS firmware, and it can also retain all BIOS configuration items completely.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other embodiments can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of an embodiment of a method for upgrading BIOS firmware provided by the present invention;

Figure 2 is a schematic diagram of the hardware structure of an embodiment of a computer device for upgrading BIOS firmware provided by the present invention;

FIG. 3 is a schematic diagram of an embodiment of a computer storage medium for upgrading BIOS firmware provided by the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to specific embodiments and the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities or parameters with the same name but not the same, so it can be seen that "first" and "second" It is only for the convenience of description and should not be understood as a limitation on the embodiments of the present invention, and subsequent embodiments will not describe this one by one.

A first aspect of the embodiment of the present invention provides an embodiment of a method for upgrading BIOS firmware. Figure 1 shows a schematic diagram of an embodiment of a method for upgrading BIOS firmware provided by the present invention. As shown in Figure 1, the embodiment of the present invention includes the following steps:

S1. In response to updating the BIOS firmware, open the BIOS image file and determine whether the BIOS image file includes attributes of the BIOS firmware;

S2. In response to the BIOS image file including the attributes of the BIOS firmware, determine the location of the signature in the BIOS image file, determine the firmware volume header based on the location of the signature, and obtain the offset of the actual partition based on the firmware volume header. quantity and size;

S3. Determine whether the actual partition is the configuration partition of the BIOS firmware based on the attributes of the firmware volume header; and

S4. In response to the actual partition being the configuration partition of the BIOS firmware, update the configuration partition of the BIOS firmware using the offset and size.

BIOS, or Basic Input and Output System, is an untamperable startup program engraved on the motherboard ROM (Read Only Memory) chip. BIOS is responsible for computing the system self-test program (POST, Power On Self Test) and system self-startup program. , so it is the first program after the computer system is started. Because it cannot be tampered with, the program is stored in the ROM chip, and the original settings can still be maintained after the power is turned off.

BMC, or Baseboard Management Controller, is a small operating system independent of the server system. It is a chip integrated on the motherboard. There are also products that are plugged into the motherboard through PCIE (Peripheral Component Interface Express, bus and interface standard). On the outside, the external manifestation is just a standard RJ45 network port and a firmware system with an independent IP (Internet Protocol). Server clusters generally use BMC instructions to perform large-scale unattended operations, including remote management, monitoring, installation and restart of servers.

An object often needs to deal with other objects, including knowing the status of other objects and relying on the behavior of other objects. Once a dependency relationship occurs, the object is considered to be dependent on another object, as long as there is a relationship between the two objects. A relationship in which one party is dependent on the other is considered to be coupled between the two objects. In the existing technology, as long as the BIOS changes the offset due to the configuration item update, the BMC will also be updated synchronously, that is, there is a coupling relationship between the BIOS and the BMC.

In order to avoid this relationship, the methods to achieve decoupling between BMC and BIOS mainly include the following:

The first method is to expand the structure. Define the data structure for interaction between BIOS and BMC. When one party adds new requirements, the corresponding data will be expanded at the end of the structure. If the BIOS expands the structure and is paired with an old version of BMC, BMC will not parse the newly expanded data. The content is sufficient. If the BMC expands the structure and is paired with an old version of BIOS, the BMC will not receive the content of the expanded structure sent by the BIOS, and it can be executed according to the default policy. This method is easy to realize the overall processing of data between BIOS and BMC, but there is a lot of information exchanged between BIOS and BMC. In many cases, different information types need to be classified and processed, so this method lacks flexibility and ease. scalability;

The second method is to classify the interactive information between BMC and BIOS, such as fru information, CPU asset information, PCIE asset information, etc. Each type corresponds to a code. Only one type of information is transmitted at a time. When it is necessary to expand it When a type of structure is created, the structure is not expanded, but a new type of encoding is added to reorganize the data of that type. This method ensures the integrity of the original data. However, when the BMC does not support the newly expanded data type but the BIOS does, blindly sending the BIOS to the BMC may cause the BMC to fail to return normally, and the BIOS may retry and other operations. The startup speed of the server, in severe cases, may directly trigger IPMI (Intelligent Platform Management Interface, Intelligent Platform Management Interface) Watchdog (watchdog), resulting in serious consequences such as server restart and shutdown.

The embodiment of the present invention proposes a method for dynamically searching BIOS configuration partitions to help BMC without having to modify relevant codes due to changes in the offset of the BIOS configuration or the customization of configuration items to increase/decrease and release them simultaneously with the BIOS, which cannot be achieved. The purpose of decoupling.

In response to updating the BIOS firmware, the BIOS image file is opened and it is determined whether the BIOS image file includes attributes of the BIOS firmware. When a user wants to update the BIOS firmware, he or she will upload a BIOS image file. The BIOS image file can be a document that records BIOS image information. During the upload process, you can determine whether the upload is successful in real time. After the BIOS image file is successfully uploaded, the BMC will open the uploaded BIOS image file.

In the embodiment of the present invention, corresponding identifiers are assigned to different partitions in the BIOS firmware, an attribute table is created according to the identifiers, and the attribute table is synchronized to the BIOS image file. For example: the ID of the BIOS attribute partition is 0x10000000, the ID of the BIOS bootloader partition is 0x10000001, and the ID of the BIOS configuration (NVRAM, Non-Volatile Random Access Memory, non-volatile random access memory) partition. The identification is 0x10000002, and the identification of the BIOS backup (Backup) configuration partition is 0x10000004. For details, please refer to the following table:

BIOS firmware 0x10000000(BIOS attribute base) BIOS bootloader 0x10000001 BIOS NVRAM 0x10000002 BIOS Backup NVRAM 0x10000004

In response to the BIOS image file including attributes of the BIOS firmware, determine the location of the signature in the BIOS image file, determine the firmware volume header based on the location of the signature, and obtain the offset and sum of the actual partition based on the firmware volume header. size. First determine whether the 0x10000000 mark in this image file corresponds to the BIOS firmware attribute partition. If so, you can determine the location of the signature in the BIOS image file.

When creating a BIOS image file, you can digitally sign the BIOS image to obtain an encrypted image. The content of the digital signature does not need to be specifically limited. It is easy to understand that it at least includes encryption such as the signature value obtained after running the encryption algorithm on the image. Information, in addition, the digital signature can also include information about the BIOS firmware, such as the creation time of the BIOS image and the size of the BIOS image.

This embodiment does not limit the type of encryption algorithm. This embodiment only provides an exemplary method for setting a digital signature. It uses a preset algorithm to generate summary information for the configuration partition of the BIOS, uses a private key to encrypt the summary information, and encrypts the summary information. The final ciphertext is packaged with the BIOS configuration partition to obtain a configuration package, and the image package is sent to the detection module to determine whether the digital signature is trustworthy. The detection module can be RTU (Root of Trust for Update, updated root of trust). RTU can be a separate module or a trusted component or module in the server. If RTU is a separate module, one end of it needs to be connected to the BIOS. Flash (flash memory) is connected, and the other end is connected to the processing end of the server. The processing end here includes but is not limited to BMC.

In some embodiments, determining the location of the signature in the BIOS image file includes: matching signatures in sequence from the head to the tail of the BIOS image file, and in response to a successful match, recording the signature in the BIOS image file. The location in the file. If you confirm that the image file is BIOS firmware, start looking for signatures from the beginning to the end of the image file. In the embodiment of the present invention, RTU can be used to decrypt the configuration package. The RTU uses the public key corresponding to the private key to decrypt the configuration package to obtain the actual summary information; it is judged whether the actual summary information is consistent with the summary information in the BIOS image file. If they are consistent, , then the configuration package is trusted and the corresponding signature matches successfully. Specifically, in actual operation, it can be judged whether the end of the BIOS image file has been reached. If not, it is judged whether there is a signature at the current position. If so, whether the match is successful. If the match is successful, the current position is recorded.

In some embodiments, determining the firmware volume header based on the location of the signature includes: determining a mapping relationship of the signature, and determining the firmware volume header based on the location of the signature and the mapping relationship. When the signature is found, it will also be mapped to a data structure (i.e., firmware volume header, firmware volume header), and this data structure contains information such as signature, attributes, offset, and partition size. Determine whether the actual partition is a configuration partition of the BIOS firmware based on the attributes of the firmware volume header. In some embodiments, determining whether the actual partition is a configuration partition of the BIOS firmware based on the attributes of the firmware volume header includes: determining whether an identifier of the configuration partition exists in the attribute table in the image file. At this time, BMC begins to detect whether the attribute table in the image file contains the identifier of the configuration partition. If there is the identifier of the configuration partition, such as NVRAM or Backup NVRAM, or 0x10000002 or 0x10000004, the offset and partition of the partition can be recorded at this time. the size of.

In response to the actual partition being a configuration partition of the BIOS firmware, the configuration partition of the BIOS firmware is updated using the offset and size.

When actually updating the BIOS firmware to SPI (Serial Peripheral Interface, Serial Peripheral Interface) flash, the same method can be applied to determine the BIOS configuration information. If the user decides to retain the BIOS configuration partition, he can skip the corresponding partition according to the recorded partition information during the update process to retain the BIOS configuration.

In some embodiments, the method further includes: in response to the existence of multiple BIOS image files, reading the timestamp corresponding to the offset and size of the actual partition in each BIOS image file, and determining the time stamp for updating based on the timestamp. BIOS image file. If multiple BIOS image files are opened at the same time, multiple sets of offsets and sizes can be obtained while the above steps remain unchanged. The timestamp corresponding to each set of offsets and sizes can be obtained at the same time, and the time distance represented on the timestamp The closer the current time is, the more recent the offset and size data are. If you need the latest data, you can use the offset and size closest to the current moment to update the configuration partition in the BIOS.

In some embodiments, determining the BIOS image file for update based on the timestamp includes: in response to an abnormality in the BIOS firmware after the update, restoring the update item and determining a new BIOS for update based on the timestamp again. Mirror file. If the BIOS firmware is abnormal after the update, it indicates that some configuration items may be incompatible with the BIOS firmware. You can select the BIOS image file again to update the configuration partition of the BIOS firmware.

The embodiment of the present invention searches whether the BIOS firmware image file contains a corresponding signature, and then learns the attributes of the BIOS configuration partition based on the signature. After comparing the correctness of the attributes of the BIOS configuration partition with the BIOS firmware, it is ensured that this partition is actually a BIOS configuration partition. , you can know the offset position of this partition and calculate the size of the partition. When actually updating the BIOS firmware, you can skip this partition and not perform the update action to achieve the purpose of completely retaining the BIOS configuration. In addition, BMC can also be used to record the information of this partition. If the user cannot boot due to adjusting certain configuration items, the user can also restore the configuration items to ensure that the server can operate normally.

It should be particularly pointed out that each step in each embodiment of the method for upgrading BIOS firmware can be crossed, replaced, added, or deleted. Therefore, these reasonable permutations and combinations should also be included in the method for upgrading BIOS firmware. protection scope of the present invention, and the protection scope of the present invention should not be limited to the embodiments.

Based on the above purpose, a second aspect of the embodiment of the present invention proposes a system for upgrading BIOS firmware, including: an opening module configured to open a BIOS image file and determine the BIOS image file in response to updating the BIOS firmware. whether the file includes the attributes of the BIOS firmware; the acquisition module is configured to determine the location of the signature in the BIOS image file in response to the BIOS image file including the attributes of the BIOS firmware, determine the firmware volume header according to the location of the signature, and Obtain the offset and size of the actual partition according to the firmware volume header; a determination module configured to determine whether the actual partition is a configuration partition of the BIOS firmware based on the attributes of the firmware volume header; and an execution module configured In response to the actual partition being a configuration partition of the BIOS firmware, use the offset and the size to update the configuration partition of the BIOS firmware.

In some implementations, the system further includes a creation module configured to: assign corresponding identifiers to different partitions in the BIOS firmware, create an attribute table according to the identifier, and synchronize the attribute table to the BIOS. Mirror file.

In some embodiments, the collection module is configured to: match signatures in sequence from the head to the end of the BIOS image file, and record the location of the signature in the BIOS image file in response to a successful match.

In some implementations, the collection module is configured to: determine a mapping relationship of the signature, and determine the firmware volume header based on the location of the signature and the mapping relationship.

In some implementations, the determination module is configured to determine whether the attribute table in the image file contains the identifier of the configuration partition.

In some embodiments, the system further includes a reading module configured to: in response to the existence of multiple BIOS image files, read the offset and timestamp corresponding to the size of the actual partition in each BIOS image file, and read the timestamp according to the The timestamp above determines the BIOS image file used for the update.

In some implementations, the reading module is configured to: in response to an abnormality in the BIOS firmware after the update, restore the update item and determine a new BIOS image file for update based on the timestamp again.

Based on the above purpose, a third aspect of the embodiment of the present invention proposes a computer device, including: at least one processor; and a memory, the memory stores computer instructions that can be run on the processor, and the instructions are executed by the processor to Implement the following steps: S1. In response to updating the BIOS firmware, open the BIOS image file and determine whether the BIOS image file includes the attributes of the BIOS firmware; S2. In response to the BIOS image file including the attributes of the BIOS firmware, determine whether the BIOS image file includes the attributes of the BIOS firmware. The location of the signature in the BIOS image file, determine the firmware volume header based on the location of the signature, and obtain the offset and size of the actual partition based on the firmware volume header; S3. Determine the actual partition based on the attributes of the firmware volume header. Whether the partition is the configuration partition of the BIOS firmware; and S4, in response to the actual partition being the configuration partition of the BIOS firmware, update the configuration partition of the BIOS firmware using the offset and size.

In some implementations, the step further includes: assigning corresponding identifiers to different partitions in the BIOS firmware, creating an attribute table according to the identifiers, and synchronizing the attribute table to the BIOS image file.

In some embodiments, determining the location of the signature in the BIOS image file includes: matching signatures in sequence from the head to the tail of the BIOS image file, and in response to a successful match, recording the signature in the BIOS image file. The location in the file.

In some embodiments, determining the firmware volume header based on the location of the signature includes: determining a mapping relationship of the signature, and determining the firmware volume header based on the location of the signature and the mapping relationship.

In some embodiments, determining whether the actual partition is a configuration partition of the BIOS firmware based on the attributes of the firmware volume header includes: determining whether an identifier of the configuration partition exists in the attribute table in the image file.

In some embodiments, the step further includes: in response to the existence of multiple BIOS image files, reading the timestamp corresponding to the offset and size of the actual partition in each BIOS image file, and determining the time stamp for updating based on the timestamp. BIOS image file.

In some embodiments, determining the BIOS image file for update based on the timestamp includes: in response to an abnormality in the BIOS firmware after the update, restoring the update item and determining a new BIOS for update based on the timestamp again. Mirror file.

As shown in Figure 2, it is a schematic diagram of the hardware structure of one embodiment of the computer device for upgrading BIOS firmware provided by the present invention.

Taking the device shown in Figure 2 as an example, the device includes a processor 201 and a memory 202, and may also include: an input device 203 and an output device 204.

The processor 201, the memory 202, the input device 203 and the output device 204 can be connected through a bus or other means. In Figure 2, connection through a bus is taken as an example.

As a non-volatile computer-readable storage medium, the memory 202 can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as the method for upgrading BIOS firmware in the embodiment of the present application. Program instructions/modules. The processor 201 executes various functional applications and data processing of the server by running non-volatile software programs, instructions and modules stored in the memory 202, that is, implementing the method of upgrading BIOS firmware in the above method embodiment.

The memory 202 may include a program storage area and a data storage area, where the program storage area may store an operating system and an application program required for at least one function; the storage data area may store data created according to the use of the method of upgrading BIOS firmware, etc. In addition, the memory 202 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 202 optionally includes memory located remotely relative to processor 201, and these remote memories may be connected to local modules through a network. Examples of the above-mentioned networks include but are not limited to the Internet, intranets, local area networks, mobile communication networks and combinations thereof.

The input device 203 can receive input information such as user name and password. The output device 204 may include a display device such as a display screen.

Program instructions/modules corresponding to one or more methods for upgrading BIOS firmware are stored in the memory 202. When executed by the processor 201, the method for upgrading BIOS firmware in any of the above method embodiments is executed.

Any embodiment of a computer device that performs the above method for upgrading BIOS firmware can achieve the same or similar effects as the corresponding any of the foregoing method embodiments.

The present invention also provides a computer-readable storage medium, which stores a computer program that performs the above method when executed by a processor.

As shown in Figure 3, it is a schematic diagram of one embodiment of the computer storage medium for upgrading BIOS firmware provided by the present invention. Taking the computer storage medium as shown in FIG. 3 as an example, the computer-readable storage medium 3 stores a computer program 31 that performs the above method when executed by a processor.

Finally, it should be noted that those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through computer programs. The program of the method of upgrading BIOS firmware can be stored in a computer-readable file. When the program is retrieved from the storage medium and executed, it may include the processes of the above-mentioned method embodiments. Among them, the storage medium of the program can be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc. The foregoing computer program embodiments can achieve the same or similar effects as any of the corresponding foregoing method embodiments.

The above are exemplary embodiments disclosed by the present invention, but it should be noted that various changes and modifications can be made without departing from the scope of the disclosed embodiments of the present invention defined by the claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or claimed in individual form, they may also be understood as plural unless expressly limited to the singular.

It will be understood that, as used herein, the singular form "a" and "an" are intended to include the plural form as well, unless the context clearly supports an exception. It will also be understood that as used herein, "and/or" is meant to include any and all possible combinations of one or more of the associated listed items.

The embodiment numbers disclosed in the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

Those of ordinary skill in the art can understand that all or part of the steps to implement the above embodiments can be completed by hardware, or can be completed by instructing the relevant hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage medium can be a read-only memory, a magnetic disk or an optical disk, etc.

Those of ordinary skill in the art should understand that the above discussion of any embodiments is only illustrative, and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the thinking of the embodiments of the present invention , the above embodiments or technical features in different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in details for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention shall be included in the protection scope of the embodiments of the present invention.

Claims (6)

1. A method of upgrading BIOS firmware, comprising the steps of:

in response to updating the BIOS firmware, starting a BIOS mirror image file and judging whether the BIOS mirror image file comprises the attribute of the BIOS firmware, wherein the BIOS mirror image file is a file for recording BIOS mirror image information;

responding to the attribute that the BIOS mirror image file comprises BIOS firmware, determining the signed position in the BIOS mirror image file, determining a firmware volume head according to the signed position, and acquiring the offset and the size of an actual partition according to the firmware volume head;

judging whether the actual partition is a configuration partition of the BIOS firmware or not based on the attribute of the firmware volume header; and

in response to the actual partition being a configured partition of the BIOS firmware, updating the configured partition of the BIOS firmware with the offset and size,

wherein, the determining the signed position in the BIOS image file includes:

sequentially matching the signatures from the head to the tail of the BIOS mirror image file, recording the positions of the signatures in the BIOS mirror image file in response to successful matching,

the determining the firmware volume header according to the signed position includes:

determining a mapping relation of the signature, determining the firmware volume header based on the position of the signature and the mapping relation,

the determining whether the actual partition is a configuration partition of the BIOS firmware based on the attribute of the firmware volume header includes:

judging whether the attribute table in the mirror image file has the identification of the configuration partition,

the method further comprises the steps of:

and allocating corresponding identifiers to different partitions in the BIOS firmware, creating an attribute table according to the identifiers, and synchronizing the attribute table to the BIOS mirror file.

2. The method according to claim 1, wherein the method further comprises:

and in response to the existence of a plurality of BIOS image files, reading the time stamp corresponding to the offset and the size of the actual partition in each BIOS image file, and determining the BIOS image file for updating according to the time stamp.

3. The method of claim 2, wherein determining a BIOS image file for updating based on the timestamp comprises:

and in response to the occurrence of an abnormality in the updated BIOS firmware, restoring the update item and determining a new BIOS image file for updating again according to the timestamp.

4. A system for upgrading BIOS firmware, comprising:

the starting module is configured to respond to updating of the BIOS firmware, start a BIOS mirror image file and judge whether the BIOS mirror image file comprises the attribute of the BIOS firmware or not, wherein the BIOS mirror image file is a file for recording BIOS mirror image information;

the acquisition module is configured to respond to the attribute that the BIOS mirror image file comprises BIOS firmware, determine the signed position in the BIOS mirror image file, determine a firmware volume head according to the signed position, and acquire the offset and the size of an actual partition according to the firmware volume head;

the judging module is configured to judge whether the actual partition is a configuration partition of the BIOS firmware based on the attribute of the firmware volume head; and

an execution module configured to update the configured partition of the BIOS firmware with the offset and size in response to the actual partition being the configured partition of the BIOS firmware,

wherein the acquisition module is further configured to:

sequentially matching the signatures from the head to the tail of the BIOS mirror image file, recording the positions of the signatures in the BIOS mirror image file in response to successful matching,

the acquisition module is further configured to:

determining a mapping relation of the signature, determining the firmware volume header based on the position of the signature and the mapping relation,

the judgment module is further configured to:

judging whether the attribute table in the mirror image file has the identification of the configuration partition,

the system further includes a creation module configured to:

and allocating corresponding identifiers to different partitions in the BIOS firmware, creating an attribute table according to the identifiers, and synchronizing the attribute table to the BIOS mirror file.

5. A computer device, comprising:

at least one processor; and

a memory storing computer instructions executable on the processor, which instructions when executed by the processor implement the steps of the method of any one of claims 1-3.

6. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method of any of claims 1-3.