In some embodiments, FIG. 3 is a flowchart of mirror image compilation of an optional method for compiling a mirror image according to an embodiment of the disclosure. As shown in FIG. 3, after a whitelist configuration file of the project is generated, the PFR mirror image is generated through the first signature tool and the second signature tool. The first signature tool indicates a signature tool of the PFR technology, referred to as a PFR signature tool for short. In other words, the first signature tool, a type of tool configured to generate a new mirror image for an original mirror image of the board manager controller, is configured to create the PFR signature mirror image through the original mirror image in the project of the board manager controller and the whitelist configuration file of the item. The second signature tool is configured to encrypt the PFR signature mirror image generated through the first signature tool, so as to obtain the PFR mirror image.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, the first signature tool is the PFR signature tool. The step that a PFR signature mirror image is created in the compiled board manager controller project through a first signature tool includes: the first signature tool is added to a software catalog of the project of the board manager controller; a function for the PFR signature mirror image is created in the compilation script, and an original mirror image in an output catalog of the project and the whitelist configuration file of each item are copied into a catalog of the first signature tool in the software catalog according to the function; and the first signature tool is controlled to generate the PFR signature mirror image based on the original mirror image and the whitelist configuration file of each item, and the PFR signature mirror image is copied into the output catalog.

In some embodiments, the first signature tool indicates the signature tool of the PFR technology. Before the first signature tool is invoked, the first signature tool is required to be added to the software catalog of codes of the project of the board manager controller, and the function for creating the PFR signature mirror image is required to be added to the compilation code. Through the operation, the signature tool can be invoked to generate the signature mirror image randomly. The original mirror image in the output catalog in the project of the board manager controller, the whitelist configuration file named by each item, and an item folder are copied into a relevant catalog of the first signature tool according to the function. A command of creating the signature mirror image is executed. The PFR signature mirror image of the corresponding item is generated through the original mirror image and the whitelist configuration file named by each item. The signature mirror image of each item is copied into the output catalog.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, the second signature tool is a signature encryption tool. The step that the PFR signature mirror image is encrypted through a second signature tool, so as to obtain the PFR mirror image includes: the second signature tool is added to the software catalog; and a function for an encrypted signature mirror image is created in the compilation script, the second signature tool is invoked according to the function for the encrypted signature mirror image, and the second signature tool is controlled to generate the PFR mirror image based on the PFR signature mirror image in the output catalog.

In some embodiments, the second signature tool is configured to encrypt the PFR signature mirror image generated through the first signature tool. Before an encryption operation, the second signature tool is required to be added to the software catalog of the codes of the project of the board manager controller for subsequent invocation. After addition, the function for creating an encrypted PFR signature mirror image is added to the compilation code. The second signature tool is invoked according to the function, so as to encrypt and fill the PFR signature mirror image generated through the first signature tool, and thus an encrypted PFR mirror image of the corresponding item is obtained. For example, the second signature tool may be a high precision metering (HPM) signature tool configured to encrypt the PFR signature mirror image, so as to generate an encrypted HPM mirror image.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, the step that the first signature tool is controlled to generate the PFR signature mirror image based on the original mirror image and the whitelist configuration file includes: the whitelist configuration file of each item is polled in a script of the first signature tool; a target address is mapped to the original mirror image according to an address offset value in partition information of the whitelist configuration file sequentially; and the whitelist configuration file is written into the target address in the original mirror image, so as to obtain the PFR signature mirror image. The address offset value in the partition information is configured to indicate a position of the whitelist configuration file of the item in a flash memory of the board manager controller.

In some embodiments, the original mirror image indicates that data in its partition are empty and required to be generated through the first signature tool and written into a corresponding partition position. The first signature tool is placed in the software catalog of the codes of the project of the board manager controller. The whitelist configuration file of each item in the project of the board manager controller is polled through the signature tool. According to the target address in the original mirror image stored in the partition of the whitelist configuration file, i.e. the address offset value, the whitelist configuration file is written into the target address in the original mirror image, so as to obtain the PFR signature mirror image.

For example, pfr_manifest.json files for items A, B, C, and D are written into address positions 0x3fc0000, 0x3fb0000, 0x3fa0000, and 0x3f90000 of the mirror image sequentially.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, the whitelist configuration file of each item encompasses bus whitelist information of the item and the partition information of the whitelist configuration file, where the partition information indicates partition information of the flash memory of the compiled board manager controller.

In some embodiments, the partition information may encompass size information and offset information. The bus whitelist information of each item and the partition information of the flash memory of the compiled board manager controller, i.e. the partition information, are stored in the corresponding whitelist configuration file named by each item. The whitelist configuration files of all the items are placed in different addresses of the partition according to the offset information.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, the whitelist configuration file of each item is generated as follows: an item folder of each item is created in a creation catalog of the project of the board manager controller, and bus whitelist information of each item is stored in a corresponding item folder; and the item folder of each item is polled in a script configured to create the PFR signature mirror image, the whitelist configuration file is generated based on the bus whitelist information in each item folder, and the whitelist configuration file is stored in the output catalog of the project of the board manager controller.

In some embodiments, a folder named by an item name is created in the creation catalog of the project of the board manager controller, and the bus whitelist file information of the corresponding item is placed in the corresponding folder. The item folder of each item is polled in the script of the project, the whitelist configuration file of the corresponding item is generated through the bus whitelist file information in the folder, and the whitelist configuration file is stored in a folder named by a corresponding item name. For example, the bus whitelist file information may be an inter-integrated circuit (I2C) whitelist file pfr_smbus_rules.json, and the whitelist configuration file of the corresponding item may be pfr_manifest.json.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, the partition information of the whitelist configuration file includes an occupied memory size value and the address offset value, and a memory size parameter is greater than or equal to a size of the whitelist configuration file. The step that the whitelist configuration file of each item is polled in a script of the first signature tool includes: based on an address offset value of a current item, a position of a whitelist configuration file of the current item in the flash memory of the board manager controller is determined sequentially, and the whitelist configuration file of the current item is read based on the position in the flash memory, where the address offset value of the current item is determined by an address offset value of a previous item and an occupied memory size value of the current item.

In some embodiments, the partition information in the whitelist configuration file includes the memory size parameter and an initial address offset value. The programmable logic device may check a mirror image of the firmware and important data in a process of activating and refreshing the board manager controller according to this information. The memory size parameter is configured to indicate a memory size of the file or partition. For example, it can be set to 0x10000 (64 K bytes). When the memory size of the partition is less than that of the whitelist configuration file, the whitelist configuration file cannot be placed in the partition. Thus, the memory size parameter of the partition is required to be greater than or equal to the size of the whitelist configuration file. The address offset value is configured to indicate a position of relevant information or configuration file in the corresponding configuration file or partition. FIG. 4 is a schematic diagram of a mapping relation between a whitelist file of the item and a mirror image according to an embodiment of the disclosure. As shown in FIG. 4, based on the address offset value of each item, the position of the whitelist configuration file corresponding to the current item in the flash memory of the board manager controller may be determined, and the whitelist configuration file may be read.

It should be noted that the memory size parameter can be set randomly, but the address offset value of the current item is required to be determined through the address offset value of the previous item relative to an address of the item. In some embodiments, the address offset value of the current item is obtained by subtracting the memory size parameter of the previous item from the address offset value of the previous item. For example, there are three items with an identical memory size, i.e. an item A, an item B, and an item C in the project of the board manager controller in total. The memory size parameter of the three items is set to 64 K, i.e. 0x10000. When 0x3fc0000 denotes an address offset value of the item A, 0x3fc0000-0x10000, i.e. 0x3fb0000 denotes an address offset value of the item B, and 0x3fb0000-0x10000, i.e. 0x3fa0000 denotes an address offset value of the item C.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, before the step that the whitelist configuration file of each item is polled in a script of the first signature tool, the method further includes: a free space in a partition of the flash memory is determined, and the whitelist configuration file of the item is stored in the free space, where the free space is determined by a size of the partition, an address offset value of the partition, and an address offset value of the free space.

In some embodiments, before the memory size parameter of the whitelist configuration file and the address offset value are determined, it is required to determine the memory size parameter of the partition and a memory size parameter of the free space in the partition. Thus, a whitelist configuration file of a new item can be stored. In some embodiments, the memory size parameter of the partition is required to be able to accommodate whitelist configuration files of a sufficient number of items. For example, when 64 K denotes the memory size parameter of the whitelist configuration files of all items, and 32 items need to be placed in the partition, the memory size parameter of the partition needs to be set to 2 M.

The memory size parameter of the free space in the flash partition is calculated through the size of the partition, the address offset value of the partition, and the address offset value of the free space. In some embodiments, the flash partition encompasses partition space occupied by an item file and remaining free space. A memory size of the free space is a difference between an ultimate offset value of the partition space occupied by the item file and an initial offset value of the free space. The memory size parameter of the free space can be obtained by subtracting a difference between the two values from the memory size parameter of the partition space occupied by the item file.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, after the step that whether a compilation operation of a PFR project exists in a compilation script is recognized through a macro definition in a case of compiling a project of a board manager controller, so as to obtain a recognition result, the method further includes: a compilation code configured to generate a general mirror image is executed in a case that the recognition result indicates that no compilation operation of the PFR project exists, so as to generate the general mirror image.

In some embodiments, when the recognition result of the PFR macro definition shows “false”, it indicates that the compilation operation of the PFR project exists, and the compilation code configured to generate the PFR mirror image is executed based on the project of the board manager controller, so as to generate the general mirror image.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, a target compilation script is configured in the compilation script of the project of the board manager controller, the target compilation script invokes a first script to execute the compilation code configured to generate the PFR mirror image, and the target compilation script invokes a second script to execute the compilation code configured to generate the general mirror image.

In some embodiments, a first code is a second compilation code configured to generate the PFR mirror image, a second code is the compilation code configured to generate the general mirror image, and an automatic compilation Python script of a PFRBMC project is added. When the recognition result of the macro definition shows “true”, it indicates that the compilation operation of the PFR project exists, and the automatic compilation Python script invokes an automatic compilation script of a general BMC, so as to execute the first compilation code configured to generate the PFR mirror image. When the recognition result shows “false”, the automatic compilation Python script invokes the automatic compilation script of the PFRBMC, so as to execute the compilation code configured to generate the general mirror image. Thus, the general BMC mirror image and the PFRBMC mirror image can be generated simultaneously by performing automatic compilation once.

In some embodiments, the method for compiling a mirror image according to the embodiments of the disclosure further includes: whether firmware of the PFR project exists is recognized through the macro definition in a process of refreshing firmware of the board manager controller; and in a case that the firmware of the PFR project exists, the firmware of the PFR project is refreshed.

In some embodiments, in a process of running the project of the board manager controller, whether the compilation code configured to execute the PFR project exists is determined through the PFR macro definition in the item file, and moreover, whether the firmware of the PFR project exists is recognized through the PFR macro definition. When the recognition result indicates that the firmware of the PFR project exists, and in other words, when the PFR macro definition shows “true”, the firmware of the PFR project is refreshed.

In some embodiments, in the method for compiling a mirror image according to the embodiments of the disclosure, the step that in a case that the firmware of the PFR project exists, the firmware of the PFR project is refreshed includes: the firmware of the PFR project is refreshed through a target refresh tool, where the target refresh tool is a refresh tool for the firmware of the PFR project.

In some embodiments, when the PFR macro definition shows “true”, it indicates that the firmware of the PFR project exists, and the firmware of the PFR project is refreshed. During refresh, the firmware of the PFR project is refreshed through a corresponding refresh tool.

In some embodiments, the method for compiling a mirror image according to the embodiments of the disclosure further includes: whether the PFR project exists is recognized through the macro definition in a process of running the project of the board manager controller; and in a case that the PFR project exists, a version of the firmware of the PFR project is displayed.

In some embodiments, in the process of running the project of the board manager controller, whether the compilation code configured to execute the PFR project exists is recognized and determined through the PFR macro definition in the item file. When the recognition result shows that the compilation code configured to execute the PFR project exists, and in other words, when the PFR macro definition shows “true”, the version of the firmware of the PFR project is displayed, so as to refresh a web page with a version number displayed.

In some embodiments, the method for compiling a mirror image according to the embodiments of the disclosure further includes: a pre-activation stage is entered, a check is performed on a flash memory of the compiled board manager controller, and data in the flash memory are recovered through the PFR mirror image in a case that the check fails after a complex programmable logic device is activated.

In some embodiments, the PFR technology can be run in two stages, i.e. the pre-activation stage and a normal activation mode stage. After the system is energized, the PFR technology enters the pre-activation stage at first. In this case, all other firmware having interfaces possibly to be activated are in a reset state. The firmware may include a central processing component, the board manager controller, etc. After activated, the complex programmable logic device performs a check on the flash memory of the compiled board manager controller.

When a check result shows a success, the PFR technology enters the normal activation mode stage. During running in the stage, the programmable logic device is mainly responsible for monitoring a critical activation device and ensuring that device booting succeeds within assigned time. In a case of booting timeout, the programmable logic device skips to the pre-activation state, so as to perform a data recovery operation. In a case of monitoring the activation device, an operation of the board manager controller on the flash memory, a hardware bus, etc. may be monitored.

When a check result shows a failure, the programmable logic device erases a flash memory region that does not pass the check, and recovers the data in the flash memory through the PFR mirror image file.

In some embodiments, the method for compiling a mirror image according to the embodiments of the disclosure further includes: the complex programmable logic device controls the compiled board manager controller to enter the pre-activation stage in a case that the complex programmable logic device monitors that the compiled board manager controller sends a command other than the whitelist configuration file.

In some embodiments, in the PFR technology, the programmable logic device monitors the hardware of the board manager controller in the normal activation mode stage, filters hardware bus data, and monitors whether the board manager controller sends the command other than a whitelist. The board manager controller provides the corresponding whitelist file for the programmable logic device. When the programmable logic device monitors that the compiled board manager controller sends the command other than the whitelist configuration file, it indicates that a compilation risk is probably caused. The programmable logic device controls the compiled board manager controller to enter the pre-activation stage, and perform the data check in the pre-activation stage.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software and a necessary general hardware platform, or can be certainly implemented through hardware. However, the former is a preferred embodiment in many cases. Based on such understanding, the technical solution in essence of the disclosure or the part that contributes to the related art can be embodied in the form of software products. The computer software product is stored in a nonvolatile readable storage medium (such as a read-only memory (ROM)/a random access memory (RAM), a magnetic disk, and an optical disk), and includes several instructions to make one terminal device (such as a mobile phone, a computer, a server, and a network device) execute the method in each embodiment of the disclosure.

An apparatus is further provided in the embodiment. The apparatus is configured to implement the above embodiments and optional embodiments, the repetitions of which will not be described in detail herein. As used below, the term “module” can be a combination of software and/or hardware that implements predetermined functions. While the apparatus described in the following embodiment is preferably implemented through software, it is possible to conceive that the apparatus is implemented through hardware or a combination of the software and the hardware.

FIG. 5 is a structural block diagram of an apparatus for compiling a mirror image according to an embodiment of the disclosure. As shown in FIG. 5, the apparatus includes a recognizing component 10, a first executing component 20, and a running component 30.

The recognizing component 10 is configured to recognize whether a compilation operation of a PFR project exists in a compilation script through a macro definition in a case of compiling a project of a board manager controller, so as to obtain a recognition result, where the macro definition is a macro definition in a project configuration item file.

The first executing component 20 is configured to execute a compilation code configured to generate a PFR mirror image in a case that the recognition result indicates that the compilation operation of the PFR project exists, so as to generate the PFR mirror image, where the PFR mirror image encompasses a whitelist configuration file of each item in the project of the board manager controller.