TWI493463B - Electronic device, universal extension firmware interface Basic input and output system firmware update method, recording media and computer program products - Google Patents

Description

Electronic device, universal extendable firmware interface, basic file input and output system firmware file update method, recording medium and computer program product

The invention relates to a basic input/output system, in particular to an electronic device, a method for updating a firmware file of a basic input/output system of a universal extendable firmware interface, a recording medium and a computer program product.

The basic input and output system (BIOS) refers to the flash memory stored on the motherboard, which contains a lot of basic input and output system platforms such as computers, tablets or smart phones. The subroutine, on the motherboard for processing software and hardware communication settings, its BIOS settings and the hardware of the system platform are related. For example, if you change the BIOS on the motherboard of the system platform arbitrarily, it is likely that the system platform will not start.

The function of the BIOS is to set and control the operation of the central processing unit (CPU) and related chips, the clock and various standard peripheral device settings, such as: printer, mouse, keyboard, hard drive and soft Disc player. When the BIOS boots the system platform, it first determines if all peripherals are located and then loads the operating system into random access memory (DRAM) from a hard drive or disk drive. With this BIOS, the operating system and applications can use the BIOS to inherit the details of the input and output devices, such as network card media access control (Medium Address Control, MAC address, drive capacity and location, etc., if the device changes, simply notify the operating system or application through the BIOS change.

When partitioning the firmware of the platform system or the firmware of the BIOS When updating (Partition), the conventional technology updates the firmware of the corresponding partition (the storage space for storing the firmware) to an image file stored in the storage medium as a file format. Firmware (including BIOS) updates can only be made to one partition at a time with one image file. Therefore, the conventional updating method for the firmware update operation of the plurality of partitions one by one is quite complicated and wastes a lot of time, and does not meet the requirements of the automatic update.

In view of the above problems, the present invention provides an electronic device, a method for updating a firmware file of a Universal Extensible Firmware Interface Basic Input Output System (UEFI BIOS), a recording medium, and a computer program product. It uses a firmware file with multiple image files to simultaneously update the firmware of multiple partitions. Therefore, the update operation is quite simple and saves time, and meets the requirements of automatic update.

A first aspect of the present invention provides a method for updating a firmware file of a universal extendable firmware interface basic input/output system, which is implemented by a platform system, the update method comprising the following steps: in the operating system phase, The firmware medium stores a firmware file having a plurality of image files in a memory; during the booting phase, accessing the firmware file stored in the memory; comparing one of the firmware files to the entire domain Identifier and the universal extendable firmware interface base Whether the global unique identifier of the input/output system is the same; calculating all the image files of the firmware file by a hash algorithm to obtain an operation hash value, and comparing the operation hash value with one of the firmware files Whether the values are the same; and the plurality of image files in the firmware file to update the firmware in the plurality of corresponding partitions.

The second aspect of the present invention provides a recording medium storing a program. When a platform system loads and executes the program on the recording medium, the updating method of the first aspect of the present invention can be completed.

The third aspect of the present invention provides a computer program product for storing a program. When a platform system loads and executes the program in a computer program product, the updating method of the first aspect of the present invention can be completed.

A fourth aspect of the present invention provides an electronic device, including: a storage medium for storing a firmware file, the firmware file including a plurality of image files, a global unique identifier, and an operation hash value The operation hash value is obtained by using a hash algorithm to calculate the image file; and an operation processing device is configured to store the firmware file in the memory from the storage device, and use the global unique identification The character determines whether it is a firmware that updates the basic input and output system of a universal extendable firmware interface.

1 is a schematic diagram of a data format of a firmware file of the present invention; and FIG. 2 is a flowchart of a method for updating a firmware file of a UEFI BIOS according to the present invention.

The present invention will be further understood by those of ordinary skill in the art to which the present invention pertains. .

A system platform such as a computer, a tablet computer, or a smart phone, which is not shown, includes a CPU (ie, an arithmetic processing device), a UEFI BIOS, a memory, and a storage medium (eg, a hard disk) to execute the present invention. The method for updating the firmware file of the UEFI BIOS of the invention.

1 is a schematic diagram of a data format of a firmware file of the present invention. In Figure 1, the file name of the firmware file stored in the storage medium is FileShell.efi, and the data format of the firmware file includes the Signature field and the Globally Unique Identifier (GUID). Field, Reserved Size field and Buffer for storing Firmware Binary.

The signature field is used as a starting point for searching multiple image files in the firmware file. The GUID field is used to identify whether the firmware file is a file that updates the UFEI BIOS. The size field is the maximum size of the record buffer. The firmware binary data stored in the buffer includes a package header (Package Header) field, multiple file information fields, an area for storing multiple image files, and a hash value field. In the embodiment, three image files are taken as an example, but it is not limited to this number.

The field of the package header is the information of the record image file. The field of the package header contains the field of the type (Type), the field of the quantity, the field of the algorithm, and the field of the output length. The field of file information records the information of each image file. The field of file information contains The field of the file name, the field of the offset, and the field of the size. The content of the image file is the binary data of the driver. The field of the hash value is correct as the verification image file.

The type field is recorded as each image file can be updated or not Update. The number field is the number of image files in the firmware file. The field of the algorithm is the type of record algorithm. The field of the output length is the length of the hash value output by the record. The field of the file name records the signature of each image file. The offset field records the offset of each image file. The size field records the file size of each image file.

2 is a flow chart of updating a firmware file of a UEFI BIOS of the present invention Cheng Tu. In Figure 2, when the firmware of the system platform or the firmware of the UEFI BIOS is to be updated, in the operating system phase, the application platform for updating multiple firmwares is executed by the system platform, and the CPU will be in the storage medium. A firmware file having a plurality of image files (file FileShell.efi as shown in FIG. 1) is stored in the memory (step S10), and the data format in the firmware file is as shown in FIG. Then, the executed application performs a warm boot to restart the system platform to enter the boot phase (step S12).

During the boot phase, the firmware stored in the memory is accessed by the system platform. The file is searched for in the firmware file (recorded in the field of the signature of the firmware file) as the starting point for accessing the firmware file (step S14).

In order to ensure that the image file of the firmware file is consistent with the firmware to be updated, The CPU of the platform compares the GUID of the firmware file (recorded in the GUID of the firmware file) with the GUID of the UEFI BIOS. If the GUID of the firmware file is the same as the GUID of the UEFI BIOS, the following firmware is implemented. If the GUID of the firmware file is different from the GUID of the UEFI BIOS, the firmware update is not performed (step S16).

In order to ensure that the firmware files stored in the memory are stored in the storage medium In the process of taking the correctness, the system platform uses a hash algorithm (such as SHA-256 algorithm) to calculate the binary data of all the image files of the firmware file to obtain an operation hash value, and compare the operation hash value with the toughness. Whether the hash value in the volume file (recorded in the hash value field of the firmware file) is the same. If the hash value is the same as the hash value, the following firmware is updated; if the hash value is different from the hash value Then, the firmware is not updated (step S18).

Then, the firmware file in the firmware file is updated by the system platform to update the firmware in the corresponding partition, and the step of updating the firmware further includes the following steps.

Checking, by the system platform, a corresponding type of the image file (for example, the image file 1) currently in the firmware file to be updated with the firmware in the corresponding partition (recorded in the field of the type of the firmware file), To determine whether the type is updatable (step S20), if the type is updateable, the system platform updates the firmware in the corresponding partition by the image file 1 in the firmware file (step S22).

If the type of the image file that cannot be updated or is currently updated has been updated, the system platform determines whether all the image files in the firmware file have been updated for the firmware in all the corresponding partitions (step S24). If not all the image files in the firmware file have been updated, proceed to step S20, and the system platform checks the next image file in the firmware file to be updated on the firmware in the corresponding partition (for example, the image file) 2) The corresponding type; if all the image files in the firmware file have been updated, the warm booting is performed by the system platform to enter the booting phase (step S26).

The method for updating the firmware file of the UEFI BIOS of the present invention may be completed in a program mode, and the program may be stored in a recording medium when the computer is in the record. After the media is loaded into the program and executed, the method steps shown in the above description and the drawings can be completed.

Similarly, the method for updating the firmware file of the UEFI BIOS of the present invention can be implemented by a computer program product. After the computer downloads the computer program product from the network, for example, the following description and drawings can be completed. Show method steps.

The present invention provides an electronic device, a method for updating a firmware file of a basic input/output system of a universal extendable firmware interface, a recording medium, and a computer program product, the advantage of which is to use a firmware file having multiple image files. Multiple partitions are simultaneously updated with firmware, so the update operation is fairly simple and saves time and meets the requirements of automated updates.

The present invention has been described above with reference to the preferred embodiments and the accompanying drawings, and should not be considered as limiting. Various modifications, omissions and changes may be made without departing from the scope of the invention.

Claims (8)

A method for updating a firmware file of a universal extendable firmware interface basic input/output system is implemented by a platform system, the update method comprising the steps of: having multiple images in a storage medium during the operating system phase One of the firmware files is stored in a memory; during the booting phase, the firmware file stored in the memory is accessed; and the global unique identifier of the firmware file is compared with the universal extendable firmware Whether the global unique identifier of the interface basic input/output system is the same; calculating all the image files of the firmware file in the memory by a hash algorithm to obtain an operation hash value, and comparing the operation hash value with Whether the hash value of one of the firmware files in the memory is the same; the plurality of image files in the firmware file in the memory are used to update the firmware in the plurality of corresponding partitions; checking the memory in the memory a corresponding one of the image files in the firmware file in the body to determine whether the type is updatable; update the image with the image file that can be updated The firmware area to be divided; determines whether the firmware file in the memory of all the image files have been updated over; and executing a warm boot, to enter the power-on stage. The method of updating the first item of the patent application further includes the following steps before the step of accessing the firmware file stored in the memory: In the operating system phase, a warm boot is performed to enter the boot phase. The updating method of claim 1, wherein in the step of accessing the firmware file stored in the memory, one of the firmware files in the memory is searched for. A recording medium storing a program, when a platform system loads and executes the program on the recording medium, the updating method of any one of the patent scopes 1 to 3 can be completed. A computer program product in which a program is stored, and when a platform system is loaded into the program and executed by the computer program product, the update method of any one of the patent scopes 1 to 3 can be completed. An electronic device includes: a storage medium for storing a firmware file, the firmware file including a complex image file, a global unique identifier, and an operation hash value, wherein the operation hash value utilizes a hash The algorithm calculates the image file acquisition; and an operation processing device, configured to store the firmware file in the memory from the storage device, and use the global unique identifier to determine whether the update is a universal extension The firmware interface is a firmware of the basic input/output system; wherein the firmware file in the memory further includes a signature information, a package header, and a plurality of file information, wherein the signature information is used to search the image. At the beginning of the file, the package header is used to record information of the image file, and each file information is used to record information corresponding to the image file. The electronic device of claim 6, wherein the package header includes information that one of each of the image files can be updated or not updated, and the number of the image files is one. Information, information about the type of hash algorithm and length information of the hash value. For example, in the electronic device of claim 6, wherein each file information includes a file name information, a file offset information, and a file size information.