WO2014082250A1

WO2014082250A1 - System, partition method and device based on flash memory

Info

Publication number: WO2014082250A1
Application number: PCT/CN2012/085538
Authority: WO
Inventors: 杜开田; 方峰; 魏志军
Original assignee: 华为技术有限公司
Priority date: 2012-11-29
Filing date: 2012-11-29
Publication date: 2014-06-05
Also published as: CN103392174B; CN103392174A

Abstract

Provided are a partition regulation method and device based on flash memory. The partition regulation method based on flash memory comprises: acquiring partition information about a partition to be regulated, the partition information being partition information which is obtained by initializing flash partitioning through a BIOS and an OS adopting the same partition information and is independent from partition information stored outside the BIOS and OS; stopping accessing all flash partitionings, and receiving modified partition information about the partition to be regulated; and initializing flash partitioning with new partition information, the new partition information comprising the modified partition information about the partition to be regulated and unmodified partition information about other partitions. In this way, the sharing of partition information and flexible scaling and regulation of the size of a flash partitioning can be realized, improving the extensibility of the system.

Description

Flash memory based system, partition method and device

【技术领域】[Technical Field]

The present invention relates to a flash memory based system, a partition adjustment method and apparatus.

【背景技术】【Background technique】

In embedded systems, Flash (flash) is an important resource for storing code and data (such as programs, logs, configuration files, patch information, etc.). The efficient use of Flash resources is related to the stability and cost of the system.

Currently, in order to improve the reliability of different types of data access, Flash is usually divided into different partitions. One of the partition structures is shown in Figure 1. During the system startup process, the basic input/output system (BIOS) and operating system (OS) access the data of the same partition. For example, during the running of the BIOS, the generated logs need to be recorded to the corresponding partitions and need to be read by the OS; or during the running of the BIOS, the functions need to be flexibly configured according to the configuration information, and need to be configured by the OS; Alternatively, during the running of the BIOS, the program can be updated and needs to be updated by the OS.

In the prior art, Flash partitioning usually adopts a static partitioning scheme. With this static partitioning scheme, if a function storage area has free storage space, the Flash partition resource cannot be utilized, and the system function expansion is limited.

【发明内容】 [Summary of the Invention]

The technical problem to be solved by the present application is to provide a system and a partitioning method and a device based on flash memory, which can unify the partition information of the BIOS and the OS, realize the sharing of the partition information, and flexibly adjust the size of the Flash partition to improve the scalability of the system. .

In one aspect, a partitioning method based on a flash storage system is provided, including: acquiring first partition information obtained after a basic input/output system initializes a flash partition for the first time, and saving the first partition information to a partition information storage medium. The partition information storage medium is a storage medium independent of the basic input/output system and the operating system; and the flash memory partition is initialized for the second time during operation of the operating system according to the first partition information. And secondizing the second partition information obtained after the flash partition is initialized; and saving the second partition information to the partition information storage medium.

The first implementation manner of the present aspect: before the step of acquiring the first partition information obtained after the basic input/output system first initializes the flash partition, the method includes: determining whether there is flash partition information in the partition information storage medium; And having the flash partition information in the partition information storage medium, acquiring the flash partition information, and initializing the flash partition for the first time in the process of running the basic input/output system according to the flash partition information, to obtain the first partition information. If there is no flash partition information in the partition information storage medium, the flash partition is initialized for the first time in the process of running the basic input/output system according to the basic configuration information to obtain the first partition information.

The second implementation manner of the present aspect: after the step of saving the first partition information and the second partition information to a storage medium independent of the basic input output system and the operating system, the method further includes: acquiring The partition information in the partition information storage medium is modified within a range supported by the partition, and the partition information of the partition to be adjusted is modified; the flash partition is initialized with new partition information, where the new partition information includes the modified partition to be adjusted. Partition information and partition information for other partitions that have not been modified.

A third implementation manner of the present aspect: after the step of initializing the flash partition with the new partition information, the method further includes: saving the new partition information to the partition information storage medium.

A fourth implementation manner of the aspect: the partition information includes at least a partition name, a partition start address, a partition size, or information about whether the partition supports adjustment.

On the other hand, a partitioning device based on a flash storage system is provided, including an obtaining module, a saving module, and an initialization module, wherein: the obtaining module is configured to obtain a first obtained by the basic input/output system after initializing the flash partition. a partition information, and the first partition information is sent to the save module; the initialization module is configured to receive the first partition information from the acquisition module and use the first partition information a second time Initializing the flash partition, obtaining the second partition information, and sending the second partition information to the save module; the save module, configured to save the first partition information and the second partition information to the partition information storage medium The partition information storage medium is a storage medium independent of the basic input output system and the operating system.

The first implementation manner of the aspect: the initialization module is further configured to initialize the flash partition for the first time to obtain the first partition information, including the determining unit and the initializing unit, in the process of running the basic input/output system, wherein: The determining unit is configured to determine whether there is flash partition information in the partition information storage medium, and send the determination result to the initialization unit; the initializing unit is configured to acquire when the partition information storage medium has flash partition information The flash partition information, according to the flash partition information, initializing a flash partition for the first time in the process of running the basic input/output system to obtain the first partition information; or for not having flash memory in the partition information storage medium When partitioning information, the flash partition is initialized for the first time in the process of running the basic input/output system according to the basic configuration information to obtain the first partition information.

A second implementation manner of the present aspect: the device further includes a modification module and an initialization module, where: the modification module is configured to acquire partition information in the partition information storage medium, and to adjust the partition in a range supported by the partition The partition information is modified, and the modified partition information is sent to the initialization module; the initialization module is configured to initialize the flash partition with new partition information, where the new partition information includes the modified partition of the partition to be adjusted. Information and partition information for other partitions that have not been modified.

A third implementation manner of the aspect: the saving module is further configured to save the new partition information to the partition information storage medium.

In still another aspect, a flash memory-based system is provided, including a processor and a flash memory electrically coupled to the processor, wherein: the processor is configured to initialize the flash partition for the first time while the basic input/output system is in operation Obtaining the first partition information after the first initialization of the flash partition, obtaining the first partition information during operation of the operating system, and initializing the flash partition by using the first partition information for the second time Secondaryizing the second partition information after the flash partition, and transmitting the first partition information and the second partition information to the flash memory for saving; the flash memory is independent of the basic input output system and the operating system The area stores data within the system and partition information of the flash.

The utility model has the beneficial effects that the present application is based on the implementation of the partitioning method of the flash storage system. During the running of the BIOS, the Flash partition is initialized for the first time, and the first initialization is obtained. The first partition information is transmitted to the OS, and the Flash partition is initialized a second time by using the first partition information during the running of the OS, so that the BIOS and the OS initialize the Flash partition by using unified partition information. Eliminate the BIOS and OS version matching issues, thus reducing the risk of the partition being unusable due to the upgrade failure. The first partition information and the second partition information are all saved to the same partition information storage medium independent of the BIOS and the OS, and the BIOS and the OS partition information are the same.

On the basis of the unified BIOS and OS partition information, the Flash partition is adjusted by modifying the partition information of the Flash partition to be adjusted within the scope of the partition support, so that the BIOS and the OS have no version matching relationship when the partition is adjusted. It can realize the sharing of partition information and the flexible scaling of the size of the Flash partition to improve the scalability of the system.

【附图说明】 [Description of the Drawings]

1 is a schematic diagram of a flash memory partition structure of the prior art;

2 is a flow chart of an embodiment of a partitioning method based on a flash storage system according to the present application;

3 is a flow chart of first initializing a flash partition in an embodiment of a partitioning method based on a flash storage system of the present application;

4 is a flow chart of adjusting a flash memory partition in an embodiment of a partitioning method based on a flash memory storage system according to the present application;

5 is a flow chart of initializing a flash partition with new partition information in another embodiment of the partitioning method based on the flash storage system of the present application;

6 is a schematic structural diagram of an embodiment of a partitioning device based on a flash memory storage system according to the present application;

7 is a schematic structural diagram of an initialization module in an implementation manner of a partitioning device based on a flash memory storage system according to the present application;

8 is a schematic structural diagram of another embodiment of a partitioning device based on a flash memory storage system of the present application;

FIG. 9 is a schematic structural diagram of an embodiment of a flash memory storage system according to the present application.

【具体实施方式】【detailed description】

The current flash (Flash) partitioning usually adopts a static partitioning scheme. When the Flash is initialized, a fixed-size storage space is allocated for each functional storage area, and the partitioned partition information is respectively solidified into the BIOS and the OS program, so that the BIOS and the BIOS are The partition information of the OS is compiled along with the attached BIOS or OS.

The application provides an embodiment of a system, a partitioning method and a device based on a flash memory, which can unify the partition information of the BIOS and the OS, realize the sharing of the partition information and the flexibility of the size of the Flash partition, and improve the scalability of the system. The present application is further elaborated by the following specific embodiments:

The Flash storage-based system according to the embodiment of the present application may pre-define a storage medium separate from the BIOS and the OS for separately storing the partition information when the system is designed. The medium may be a Flash partition. A fixed partition can also be other independent storage media, such as EEPROM (Electrically Erasable Programmable Read Only Memory).

Referring to FIG. 2, an embodiment of a partitioning method based on a flash storage system of the present application includes:

Step S101: Acquire first partition information obtained after the basic input/output system initializes the flash partition for the first time, and save the first partition information to the partition information storage medium;

The partition information mentioned in the embodiment of the present application refers to information describing a situation of a Flash partition, and the partition information includes at least a partition name, a partition start address, a partition size, and whether the partition supports adjustment.

After the system is powered on, the Flash driver initializes the Flash partition for the first time in the process of running the basic input/output system (BIOS), and obtains the first partition information after the first initialization of the Flash partition. The first partition information obtained by the BIOS is stored in the BIOS fixed memory in the form of a parameter table. Among them, the Flash driver is a tool or software that makes Flash run.

The Flash driver reads the first partition information from the BIOS fixed memory through the standard Extensible Firmware Interface (EFI) while the OS is running. And saving the first partition information to the partition information storage medium. The partition information storage medium is a storage medium independent of the BIOS and the operating system (OS), and may be a partition of the Flash itself, or may be another storage medium. . The partition information is saved by using a storage medium independent of the BIOS and the OS, so that the Flash partition information is compiled separately from the attached BIOS or OS, and the adjustment of the Flash partition is facilitated, and the partition information of the BIOS and the OS can be homologous.

Step S102: Initially initialize the flash partition according to the first partition information during operation of the operating system, and obtain second partition information obtained after initializing the flash partition for the second time;

During the running of the OS, the Flash driver initializes the Flash partition a second time according to the first partition information, and obtains the second partition information after the second initialization of the Flash partition.

Step S103: saving the second partition information to the partition information storage medium;

After the second initialization of the Flash partition in the OS running process, the second partition information obtained by initializing the Flash partition for the second time is stored in the partition information storage medium. The partition information storage medium here is the same storage medium as the storage medium storing the first partition information, so that the partition information is homologous. The first partition information and the second partition information mentioned in the present application respectively refer to partition information obtained by the BIOS and the OS using the same partition information to initialize the flash. Therefore, the first partition information and the second partition information are actually The same partition information to ensure the unified partition information of the BIOS and OS.

Through the foregoing description of the embodiments, it can be understood that the present application is based on the partitioning method of the flash storage system. During the BIOS operation, the Flash partition is initialized for the first time, and the first partition information obtained after the first initialization is transmitted to the OS. The Flash partition is initialized a second time by using the first partition information during the running of the OS, so that the BIOS and the OS initialize the Flash partition with unified partition information. Eliminate the BIOS and OS version matching issues, thus reducing the risk of the partition being unusable due to the upgrade failure. The first partition information and the second partition information are all saved to the same partition information storage medium independent of the BIOS and the OS, and the BIOS and the OS partition information are the same.

Referring to FIG. 3, in another embodiment, the first initialization of the Flash partition includes the following sub-steps:

Sub-step S201: determining whether there is flash partition information in the partition information storage medium;

During the running of the BIOS, the Flash driver first determines whether there is Flash partition information in the partition information storage medium other than the BIOS and OS. Normally, the system identifies the Flash driver by returning status to indicate whether there is Flash partition information. For example, the Flash driver sends a request for acquiring partition information to the system. The system returns 0 to indicate that there is no Flash partition information in the partition information storage medium, and returns 1 to indicate that the partition information storage medium has Flash partition information.

If there is Flash partition information in the partition information storage medium, sub-step S202 is performed, and if there is no flash partition information in the partition information storage medium, sub-step S203 is performed.

Sub-step S202: Acquiring the flash partition information, and initializing the flash partition for the first time in the process of running the basic input/output system according to the flash partition information, to obtain the first partition information;

If there is Flash partition information in the partition information storage medium independent of the BIOS and the OS, the Flash driver first initializes the Flash partition according to the Flash partition information in the medium to obtain the first partition information, and the first partition information is The form of the parameter table is stored in the fixed memory of the BIOS.

Sub-step S203: Initializing the flash partition for the first time in the process of running the basic input/output system according to the basic configuration information, to obtain the first partition information;

If there is no Flash partition information in the partition information storage medium other than the BIOS and the OS, the Flash driver obtains the basic configuration information of the BIOS, and initializes the Flash partition for the first time according to the basic configuration information to obtain the first partition information. The first partition information obtained after initializing the Flash partition for the first time is stored in the fixed memory of the BIOS in the form of a parameter table. The basic configuration information here is the initial partition information when designing the system, and is solidified in the BIOS.

Through the foregoing implementation manner, the BIOS and the OS partition information are unified and homologous. On this basis, the Flash partition can be adjusted within the scope supported by the partition.

Referring to FIG. 4, the present application is based on a partitioning method of a flash storage system. In another implementation manner, adjusting the Flash partition includes the following steps:

Step S301: Acquire partition information in the partition information storage medium, and modify the partition information of the partition to be adjusted within a range supported by the partition;

The partition information here is that the BIOS and the OS use the same partition information to initialize the Flash partition respectively, thereby obtaining partition information saved in the partition information storage medium other than the BIOS and the OS.

Therefore, when the Flash partition needs to be adjusted, the Flash driver obtains the partition information saved in the partition information storage medium independent of the BIOS and the OS through the EFI, and determines whether the partition satisfies the adjustment condition according to the partition information, such as the to be adjusted. Whether the partition supports adjustment, whether the partition to be adjusted supports large or small, etc. At the same time, the adjustment of the current partition will inevitably lead to the adjustment of the next partition. Therefore, it is also necessary to determine whether the partition next to the partition needs to be adjusted. The scope. For example, a certain partition A needs to be enlarged, but there is not enough space in the next partition to support the range of A to adjust, and the adjustment conditions are not satisfied. If the adjustment condition is not met, the partition adjustment is directly exited. If the adjustment condition is met, the access to all Flash partitions is stopped. Within the scope supported by the partition, the Flash driver can modify the partition information of the adjusted partition by using coding or a certain tool. Of course, it is also possible to modify the partition information of the adjusted partition by the user.

The Flash driver receives the modified partition information of the partition to be adjusted, and determines whether the modified partition information of the partition to be adjusted is legal and valid, that is, according to the modified partition information of the partition to be adjusted, whether the partition to be adjusted and its partition partition support are supported. The scope of the modification. For example, if the partition size supported by the partition A is 1G and supports small adjustment, then it is judged whether the modified partition size of A is within the 1G range, whether it is adjusted to a small size, and at the same time, the partition partition of the partition A such as B and C is determined. Whether the partition supports the adjustment range of A. If the partition information of the modified A partition is greater than 1G or the large adjustment or the partition partition cannot support the adjusted partition size, the modified partition information is considered invalid. Only the modified partition information satisfies all the adjustment conditions and is considered to be modified. The partition information is legal and valid.

If the modified partition information is valid, the partition information of the modified partition to be modified and the partition information of the other partitions that are not modified constitute new partition information, and step S302 is performed; otherwise, the partition adjustment is exited.

In the actual application process, in order to prevent the data loss in the partition caused by the partition adjustment, after stopping the access to all the Flash partitions, the data in all the Flash partitions can be backed up into the memory or the temporary storage medium, and then modified. Adjust the partition information of the partition.

Step S302: Initialize the flash partition with new partition information;

The Flash driver uses the new partition information (that is, the modified partition information of the partition to be adjusted and the partition information of other partitions that have not been modified), initializes the Flash partition, obtains the partition information after the partition is adjusted, and will back up all the Flash partitions. The data is restored to the Flash partition (ie, the adjusted Flash partition) initialized with the new partition information.

After the adjustment of the Flash partition is completed, the data in the backup Flash partition to be restored can be restored to the adjusted corresponding Flash partition to avoid data loss.

In order to ensure that the adjusted partition information is not lost and the access data is prevented from being adjusted after the partition is adjusted, the partition information after the partition is adjusted is saved to the partition information storage medium independent of the BIOS and the OS, and the partition adjustment is completed.

Through the above methods, the Flash partition can be expanded, reduced, and deleted, added, merged, and the like.

Through the above description of the embodiment, the present application initializes the Flash partition by modifying the partition information of the partition to be adjusted, and modifying the partition of the partition to be adjusted and other unmodified partition information, thereby implementing adjustment of the Flash partition. Since the partition information is obtained by using the same partition information for the BIOS and the OS, respectively, the initialization of the Flash partition is obtained, and the partition information saved outside the basic input/output system and the operating system is independent, thereby ensuring uniformity of the partition information of the BIOS and the OS. . On the basis of the unified BIOS and OS partition information, the Flash partition is adjusted by modifying the partition information of the Flash partition to be adjusted, so that the BIOS and the OS have no version matching relationship when the partition is adjusted. It can realize the sharing of partition information and the flexible scaling of the size of the Flash partition to improve the scalability of the system.

On the other hand, backing up the data in the Flash partition during the adjustment process can prevent data loss or inaccessibility due to partition adjustment, and enhance the reliability of the data in the Flash partition. The partition information after the partition is re-saved to the independent media for storing the partition information, which not only ensures that the partition information is not lost, but also avoids the error of accessing the data after the partition adjustment, and also facilitates adjustment of the Flash partition again in the future.

In another embodiment, the step of initializing the Flash partition with the partition information of the modified partition to be adjusted and the partition information of the other partitions that are not modified may refer to FIG. 5, and includes the following sub-steps:

Sub-step S401: updating the partition information in the fixed memory of the basic input/output system with the new partition information through the standard extensible firmware interface;

Through EFI, the new partition information (that is, the modified partition information of the partition to be adjusted and the partition information of other partitions that have not been modified) are saved in the fixed memory of the BIOS, and the original partition information is replaced with the new partition information. Implement the update of the partition information.

Sub-step S402: uninstalling the flash drive;

Uninstall the existing Flash driver to reload the Flash driver to get new partition information.

Sub-step S403: Reload the flash drive, obtain new partition information through the standard extensible firmware interface, and initialize the flash partition with new partition information.

Reload the Flash driver. When loading the Flash driver, obtain new partition information from the BIOS's fixed memory through EFI, and initialize the Flash partition with the new partition information. The initialization of the Flash partition with the new partition information is performed by re-initializing the Flash partition with new partition information during the running of the OS to complete the partition adjustment.

Referring to FIG. 6, an embodiment of a partitioning device based on a flash memory storage system of the present application includes an obtaining module 11, an initializing module 12, and a saving module 13, wherein:

The obtaining module 11 is configured to obtain first partition information obtained after the basic input/output system initializes the flash partition for the first time, and send the first partition information to the initialization module 12 and the saving module 13;

After the system is powered on, during the operation of the basic input/output system (BIOS), the Flash partition is initialized for the first time, and the first partition information after the first initialization of the Flash partition is obtained. The first partition information obtained by the BIOS is stored in the BIOS fixed memory in the form of a parameter table.

During the operation of the OS, the acquisition module 11 reads the first partition information from the BIOS fixed memory through the standard Extensible Firmware Interface (EFI). The first partition information is sent to the save module 13 and the initialization module 12.

The initialization module 12 is configured to receive the first partition information from the obtaining module 11 and initialize the Flash partition a second time by using the first partition information, obtain the second partition information, and send the second partition information to the saving module 13;

During the running of the OS, the initialization module 12 initializes the Flash partition a second time according to the first partition information, obtains the second partition information after the second initialization of the Flash partition, and sends the second partition information to the saving module 13.

a saving module 13 for saving the first partition information and the second partition information to the same partition information storage medium, wherein the partition information storage medium is a storage medium independent of the BIOS and the OS;

The saving module 13 saves the first partition information and the second partition information to the same partition information storage medium other than the BIOS and the OS, thereby realizing the partition information homologous. The first partition information and the second partition information mentioned in the present application respectively refer to partition information obtained by the BIOS and the OS using the same partition information to initialize the flash. Therefore, the first partition information and the second partition information are actually The same partition information to ensure the unified partition information of the BIOS and OS.

The initialization module 12 is further configured to initialize the Flash partition for the first time to obtain the first partition information during the operation of the basic input/output system.

Please refer to FIG. 7. In another embodiment, the initialization module 12 includes a determining unit 111 and an initializing unit 112, where:

The determining unit 111 is configured to determine whether there is Flash partition information in the partition information storage medium, and send the determination result to the initialization unit 112;

During the running of the BIOS, the judging unit 111 first judges whether there is Flash partition information in the partition information storage medium other than the BIOS and the OS. Normally, the system returns a status identifier to indicate whether there is Flash partition information. For example, the Flash driver sends a request for acquiring partition information to the system. The system returns 0 to indicate that there is no Flash partition information in the partition information storage medium, and returns 1 to indicate that the partition information storage medium has Flash partition information. The judgment unit 111 transmits the judgment result to the initialization unit 112.

The initialization unit 112 is configured to: when the partition information storage medium has Flash partition information, acquire Flash partition information, and first initialize the Flash partition according to the Flash partition information in the process of running the basic input/output system to obtain the first partition information; or When the flash partition information is not in the partition information storage medium, the flash partition is initialized for the first time in the process of running the basic input/output system according to the basic configuration information, to obtain the first partition information.

If there is Flash partition information in the partition information storage medium other than the BIOS and the OS, the initializing unit 112 initializes the Flash partition for the first time according to the Flash partition information in the medium, and obtains the first partition information, and the first partition information is The form of the parameter table is stored in the fixed memory of the BIOS.

If there is no Flash partition information in the partition information storage medium other than the BIOS and the OS, the initialization unit 112 acquires the basic configuration information of the BIOS, and initializes the Flash partition for the first time according to the basic configuration information to obtain the first partition information. The first partition information obtained after initializing the Flash partition for the first time is stored in the fixed memory of the BIOS in the form of a parameter table.

Referring to FIG. 8, another embodiment of the partitioning device based on the flash memory storage system of the present application includes an obtaining module 11, an initializing module 12, a saving module 13, and a modifying module 14, wherein:

The modifying module 14 is configured to obtain the partition information in the partition information storage medium, modify the partition information of the partition to be adjusted, and send the modified partition information to the initialization module 12;

Therefore, when the Flash partition needs to be adjusted, the Flash driver obtains the partition information saved in the partition information storage medium independent of the BIOS and the OS through the EFI, and determines whether the partition satisfies the adjustment condition according to the partition information. For example, whether the partition to be adjusted supports adjustment, whether the partition to be adjusted supports large or small, and so on. At the same time, the adjustment of the current partition will inevitably lead to the adjustment of the partition next to it. Therefore, it is also necessary to determine whether the partition partition of the partition to be adjusted also satisfies the range that needs to be adjusted. For example, a certain partition A needs to be enlarged, but there is not enough space in the next partition to support the range of A to adjust, and the adjustment conditions are not satisfied. If the adjustment condition is not met, the partition adjustment is directly exited. If the adjustment condition is met, the access to all the Flash partitions is stopped. Within the scope of the partition support, the modification module 14 may modify the partition information of the adjusted partition by using coding or a certain tool.

If the modified partition information is valid, the modified partition information of the partition to be adjusted is sent to the initialization module 12.

In the actual application process, in order to prevent the data loss in the partition caused by the partition adjustment, after stopping the access to all the Flash partitions, the data in all the Flash partitions can be backed up into the memory or the temporary storage medium, and then the module 14 is modified. Then modify the partition information of the partition to be adjusted.

The initialization module 12 is configured to initialize the Flash partition with the new partition information, where the new partition information includes the partition information of the modified partition to be adjusted and the partition information of the other partitions that are not modified.

The initialization module 12 initializes the Flash partition by using the new partition information (ie, the modified partition information of the partition to be adjusted and the partition information of other partitions that are not modified), obtains the partition information after the partition is adjusted, and will back up all the Flash partitions. The data is restored to the Flash partition (ie, the adjusted Flash partition) initialized with the new partition information.

In order to ensure that the adjusted partition information is not lost and the access data is prevented from being changed after the partition is adjusted, the saving module 13 further saves the partition information after the adjustment of the partition to the partition information storage medium independent of the BIOS and the OS, and completes the partition adjustment.

In the actual application process, the initialization module 12 initializes the Flash partition with new partition information by:

The initialization module 12 saves the new partition information (that is, the modified partition information of the partition to be adjusted and the partition information of the other partitions that have not been modified) to the fixed memory of the BIOS through EFI, and replaces the original with the new partition information. Partition information to update the partition information.

The initialization module 12 unloads the existing Flash driver to reload the Flash driver to obtain new partition information.

The initialization module 12 reloads the Flash driver. When the Flash driver is loaded, the new partition information is obtained from the fixed memory of the BIOS through EFI, and the Flash partition is initialized with the new partition information. The initialization of the Flash partition with the new partition information is performed by re-initializing the Flash partition with new partition information during the running of the OS to complete the partition adjustment.

Referring to FIG. 9, one embodiment of a system based on flash memory storage of the present application includes a processor 21 coupled to a power source (VCC) 23 and a flash memory 22 electrically coupled to a power source (VCC) 23 and a processor 21, respectively, wherein:

The processor 21 is configured to initialize the Flash partition for the first time during the running of the BIOS, obtain the first partition information after the first initialization of the Flash partition, and obtain the first partition information from the BIOS during the running of the OS, and utilize the first partition information. The first partition information initializes the Flash partition for the second time, obtains the second partition information after the second initialization of the Flash partition, and sends the first partition information and the second partition information to the flash memory 22 for storage;

The processor 21 is electrically connected to the power supply (VCC) 23, and supplies power to the processor 21 through the power supply (VCC) 23. The other end of the processor 21 is electrically connected to the flash memory 22 to control the adjustment of the Flash partition and the Flash partition of the system.

After the system is powered on, the processor 21 first initializes the Flash partition during the running of the BIOS, and obtains the first partition information obtained by initializing the Flash partition for the first time in the running process of the OS, and uses the first partition information to perform the first The second partition is initialized by the Flash partition to obtain the second partition information. The first partition information and the second partition information are transmitted to the memory 22 independent of the BIOS and the OS for storage. Therefore, the BIOS and OS partition information can be unified, and the problems of different sources of BIOS and OS partition information can be solved.

One end of the flash memory 22 is connected to a power supply (VCC) 23, and the flash memory 22 is powered by a power supply (VCC) 23. The other end of the flash memory 22 is electrically connected to the processor 21 for storing data in the system independently of the BIOS and the OS. And the partition information of the flash memory.

Of course, in the actual application process, the partition information of the flash memory can be stored by using another memory such as an EEPROM.

On the other hand, based on the unified BIOS and OS partition information, if the Flash partition needs to be expanded, reduced, deleted, added, merged, etc., the Flash partition can be adjusted by the processor 21. The processor 21 obtains the partition information of the to-be-adjusted partition saved by the BIOS and the OS through the EFI, and receives the modified partition information of the partition to be adjusted, and initializes the Flash partition with the modified partition information of the to-be-adjusted partition to implement the pair. Adjustment of the Flash partition.

The description of the foregoing embodiment is different from the prior art. The advantage of the present application is that the present application initializes the Flash partition for the first time during the BIOS operation, and transmits the first partition information obtained after the first initialization to the OS. In the OS running process, the first partition information is used to initialize the Flash partition for the second time, so that the BIOS and the OS use the unified partition information to initialize the Flash partition, and solve the problem of different sources of BIOS and OS partition information. Eliminate the BIOS and OS version matching issues, thus reducing the risk of the partition being unusable due to the upgrade failure. The first partition information and the second partition information are all saved to the same partition information storage medium independent of the BIOS and the OS, and the BIOS and the OS partition information are the same.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device implementations described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The functional modules described as separate components may or may not be physically separated. The components displayed as the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing unit, or each functional module may exist physically separately, or two or more functional modules may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM, Read-Only) Memory, random access memory (RAM), disk or optical disk, and other media that can store program code.

The above description is only the embodiment of the present application, and thus does not limit the scope of the patent application, and the equivalent structure or equivalent process transformation of the specification and the drawings of the present application, or directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of this application.

Claims

A partitioning method based on a flash storage system, comprising:

Acquiring first partition information obtained after the basic input/output system first initializes the flash partition, and saving the first partition information to the partition information storage medium, the partition information storage medium is independent of the basic input output system and a storage medium other than the operating system;

And initializing the flash partition for the second time according to the first partition information, and acquiring the second partition information obtained after the second initialization of the flash partition.

And saving the second partition information to the partition information storage medium.
The method according to claim 1, wherein the step of obtaining the first partition information obtained after the basic input/output system first initializes the flash partition is:

Determining whether there is flash partition information in the partition information storage medium;

And if the partition information storage medium has flash partition information, acquiring the flash partition information, and initializing the flash partition for the first time in the process of running the basic input/output system according to the flash partition information, to obtain the first partition. If the flash partition information is not in the partition information storage medium, the flash partition is initialized for the first time in the process of running the basic input/output system according to the basic configuration information to obtain the first partition information.
The method according to claim 1 or 2, wherein after the step of saving the second partition information to the partition information storage medium, the method further comprises:

Obtaining the partition information in the partition information storage medium, and modifying the partition information of the partition to be adjusted within a range supported by the partition;

The flash partition is initialized with new partition information, and the new partition information includes partition information of the modified partition to be adjusted and partition information of other partitions that are not modified.
The method according to any one of claims 1 to 3, wherein after the step of initializing the flash partition with the new partition information, the method further comprises: saving the new partition information to the partition information storage In the medium.
The method according to any one of claims 1 to 4, wherein the partition information includes at least a partition name, a partition start address, a partition size, or information on whether the partition supports adjustment.
A partitioning device based on a flash storage system, comprising: an obtaining module, a saving module, and an initialization module, wherein:

The obtaining module is configured to obtain first partition information obtained after the basic input/output system initializes the flash partition for the first time, and send the first partition information to the saving module;

The initialization module is configured to receive the first partition information from the acquiring module, and initialize the flash partition by using the first partition information for a second time, obtain second partition information, and send the second partition information Giving the save module;

The saving module is configured to save the first partition information and the second partition information into a same partition information storage medium, the partition information storage medium being independent of the basic input output system and the operating system Storage medium.
The device according to claim 6, wherein the initialization module is further configured to initialize the flash partition for the first time to obtain the first partition information, including the determining unit and the initializing unit, during the operation of the basic input/output system. among them:

The determining unit is configured to determine whether there is flash partition information in the partition information storage medium, and send the determination result to the initialization unit;

The initialization unit is configured to acquire the flash partition information when the partition information storage medium has flash partition information, and initialize the flash partition for the first time in the process of running the basic input/output system according to the flash partition information, Obtaining the first partition information; or when the flash partition information is not in the partition information storage medium, initializing the flash partition for the first time in the process of running the basic input/output system according to the basic configuration information, to obtain the first One partition information.
The apparatus according to claim 6 or 7, wherein said apparatus further comprises a modification module, wherein:

The modifying module is configured to obtain the partition information in the partition information storage medium, modify the partition information of the partition to be adjusted, and send the modified partition information to the initialization module.

The initialization module is configured to initialize a flash partition with new partition information, where the new partition information includes partition information of the modified partition to be adjusted and partition information of other partitions that are not modified.
The device according to any one of claims 6-8, wherein the saving module is further configured to save the new partition information to the partition information storage medium.
The apparatus according to any one of claims 6-9, wherein the partition information includes at least a partition name, a partition start address, a partition size, or information whether the partition supports adjustment.
A flash memory based system, comprising: a processor and a flash memory electrically coupled to the processor, wherein:

The processor is configured to initialize the flash partition for the first time during the running of the basic input/output system, obtain the first partition information after the first initialization of the flash partition, and obtain the first part during the running process of the operating system. a partition information, and using the first partition information to initialize the flash partition a second time, obtaining the second partition information after the second initialization of the flash partition, and transmitting the first partition information and the second partition information to the Flash memory is saved;

The flash memory stores data within the system and partition information of the flash memory in an area other than the basic input output system and the operating system.