WO2019127191A1 - Procédé et appareil de partage de système de fichier pour système multi-exploitation et dispositif électronique - Google Patents

Procédé et appareil de partage de système de fichier pour système multi-exploitation et dispositif électronique Download PDF

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Publication number
WO2019127191A1
WO2019127191A1 PCT/CN2017/119288 CN2017119288W WO2019127191A1 WO 2019127191 A1 WO2019127191 A1 WO 2019127191A1 CN 2017119288 W CN2017119288 W CN 2017119288W WO 2019127191 A1 WO2019127191 A1 WO 2019127191A1
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WIPO (PCT)
Prior art keywords
operating system
client
server
memory space
shared memory
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Application number
PCT/CN2017/119288
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English (en)
Chinese (zh)
Inventor
边瑞锋
温燕飞
Original Assignee
深圳前海达闼云端智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 深圳前海达闼云端智能科技有限公司 filed Critical 深圳前海达闼云端智能科技有限公司
Priority to CN201780003297.9A priority Critical patent/CN108369604B/zh
Priority to PCT/CN2017/119288 priority patent/WO2019127191A1/fr
Publication of WO2019127191A1 publication Critical patent/WO2019127191A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • G06F2009/45562—Creating, deleting, cloning virtual machine instances

Definitions

  • the embodiments of the present application relate to the field of virtualization technologies, for example, to a method, an apparatus, and an electronic device for sharing a file system by multiple operating systems.
  • Virtualization technology allows multiple operating systems to share the hardware resources of the machine. Each operating system is independent of each other and does not affect each other. It not only plays a good role in isolation, but also greatly improves the resource utilization of the system.
  • a file system needs to be shared between virtual machines or between virtual machines and hosts.
  • the file system of the host is shared to the virtual machine system mainly through virtio, and the virtual machine mounts the file system of the host to the virtual machine through the 9pfs of the kernel.
  • An object of the embodiments of the present application is to provide a method, an apparatus, and an electronic device for sharing a file system by multiple operating systems, which can implement file system sharing between virtual machines or between virtual machines and hosts.
  • the embodiment of the present application provides a method for sharing a file system by using multiple operating systems, which is used in an electronic device, and the method includes:
  • the client operating system writes the request data to a preset shared memory space, and the preset shared memory space supports access by at least two operating systems;
  • the server operating system queries the request data in the preset shared memory space, and writes reply data to the preset shared memory space according to the request data;
  • the client operating system acquires the reply data from the preset shared memory space, and mounts a target folder in the server operating system to the client operating system according to the reply data.
  • the embodiment of the present application further provides a device for sharing a file system by using multiple operating systems, and the device includes:
  • Requesting a data writing module configured to: the client operating system writes the request data to the preset shared memory space, where the preset shared memory space supports access by at least two operating systems;
  • a first notification module configured to notify the server operating system of the access request of the client operating system
  • a reply data writing module configured to query the request data in the preset shared memory space by the server operating system, and write reply data to the preset shared memory space according to the request data;
  • a second notification module configured to notify the client operating system of the reply of the server operating system
  • a file mounting module configured to: obtain, by the client operating system, the reply data from the preset shared memory space, and mount the target folder in the server operating system according to the reply data Said under the client operating system.
  • the embodiment of the present application further provides an electronic device, including:
  • At least one processor and,
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the method described above.
  • the method, device, and electronic device for sharing a file system in a multi-operating system are configured to provide a space that can be accessed by multiple operating systems by using a preset shared memory space, and use the preset shared memory space to store the client.
  • Under the operating system. This enables the sharing of file systems between virtual machines and between virtual machines and hosts.
  • FIG. 1 is a schematic diagram of an application scenario of the method and apparatus of the present application.
  • FIG. 2 is a flow chart of one embodiment of a method for sharing a file system by multiple operating systems of the present application
  • FIG. 3 is a flow chart of one embodiment of a method for sharing a file system by multiple operating systems of the present application
  • FIG. 4 is a schematic flowchart of a step of writing a reset message in a method for sharing a file system by multiple operating systems according to an embodiment of the present application;
  • FIG. 5 is a schematic structural diagram of an embodiment of an apparatus for sharing a file system by multiple operating systems according to the present application
  • FIG. 6 is a schematic structural diagram of an embodiment of an apparatus for sharing a file system by multiple operating systems according to the present application
  • FIG. 7 is a schematic structural diagram of hardware of an electronic device according to an embodiment of the present application.
  • the method and apparatus for the multi-operating system shared file system provided by the present application can be used in the application scenario shown in FIG. 1 , where the application scenario includes an electronic device 10 , and multiple virtual machines are installed on the electronic device 10 ( FIG. 1 shows A case where three virtual machines are installed on one electronic device 10.
  • the electronic device 10 itself is installed with an operating system OS as a host, an operating system OS1 is installed on the virtual machine 1 , an operating system OS 2 is installed on the virtual machine 2 , and an operating system OS 3 is installed on the virtual machine 3 .
  • the operating system is, for example, a Linux operating system.
  • one of the above host machines and a plurality of virtual machines may be selected as a server, and other virtual machines or hosts are used as clients, and the server is used to respond to data access requests of the client.
  • a memory space may be opened on the electronic device 10 as a shared memory space, and part or all of the plurality of operating systems may be accessed by the shared memory technology.
  • the shared memory space is used to store an access request of the client operating system for the server operating system, and a reply data of the server operating system to the client operating system, so that the client operating system can be used in the server operating system according to the reply data.
  • the target folder is mounted under the client operating system. This enables the sharing of file systems between virtual machines and between virtual machines and hosts.
  • the method for sharing a file system by multiple operating systems may be performed by the electronic device 10 shown in FIG. 1, as shown in FIG. 2, the method includes:
  • the client operating system writes the request data to a preset shared memory space, where the preset shared memory space supports access by at least two operating systems.
  • the method further includes: setting the preset shared memory space, so that at least two operating systems can access the memory space.
  • a memory space can be opened in the memory of the host machine by using the shared memory technology as a preset shared memory space, and the virtual machine or the host that needs to share the file system can access the preset shared memory space.
  • the notification can be implemented by sending an interrupt request from the client operating system to the server operating system.
  • the notification can be implemented by sending a trap instruction to the server operating system from the client operating system.
  • VMM can be used. Machine Monitor, virtual machine monitor) caught up with instructions to notify.
  • the client operating system is required to send a trap instruction to the host, and then the host sends an interrupt request to the server operating system. That is, the host to the virtual machine can pass the interrupt request, and the virtual machine to the host machine can be trapped by the instruction, and the virtual machine needs to first insert the instruction into the host machine, and then the host sends an interrupt request to the virtual machine.
  • the server operating system queries the request data in the preset shared memory space, and writes reply data to the preset shared memory space according to the request data.
  • the server operating system queries the request data in the preset shared memory space, and responds to the request, and writes the reply data into the preset shared memory space.
  • the server operating system may further clear the request data in the preset shared memory space to reduce the occupation of the memory space.
  • the notification can be implemented by sending an interrupt request from the server operating system to the client operating system.
  • the notification can be implemented by sending a trapped instruction to the client operating system from the server operating system.
  • the VMM can be used. Machine Monitor, virtual machine monitor) caught up with instructions to notify. If both the client and the server are virtual machines, the server operating system first needs to send a trap instruction to the host, and then the host sends an interrupt request to the client operating system.
  • Step 105 The client operating system acquires the reply data from the preset shared memory space, and mounts a target folder in the server operating system to the client operating system according to the reply data. under.
  • the reply data may be the content of the target folder requested by the client operating system, or may be an attribute of the target folder, by which the client operating system can obtain the content of the target folder, and
  • the target folder is mounted to the client operating system.
  • the embodiment of the present application provides a space that can be accessed by multiple operating systems by using a preset shared memory space, and uses the preset shared memory space to store an access request of the client operating system for the server operating system, and a server operating system.
  • the reply data to the client operating system, so that the client operating system can mount the target folder in the server operating system under the client operating system according to the reply data.
  • This enables the sharing of file systems between virtual machines and between virtual machines and hosts.
  • the embodiment of the present application does not require network communication between virtual machines or hosts, and the file system can be conveniently shared.
  • the preset shared memory space may be divided into multiple shared areas, for example, divided into multiple buffers, and each shared area is used to store corresponding clients.
  • the number and size of the shared area in which the shared memory space is divided may be allocated according to actual conditions. Take the four operating systems shown in Figure 1 as an example. If the OS is used as the server operating system, OS1, OS2, and OS3 are used as the client operating system.
  • the preset shared memory space can be divided into three shared areas, that is, a first shared area, a second shared area, and a third shared area.
  • the first shared area may be used to store OS1's request data for the OS and the OS's reply data to OS1.
  • the second shared area may be used to store OS2's request data for the OS and the OS's reply data to OS2.
  • the third shared area may be used to store OS3's request data for the OS and the OS's reply data to the OS3.
  • the server operating system can clear the request data in the shared area before writing the reply data in the shared area.
  • the preset shared memory space may also be divided into six shared areas, that is, a first shared area, a second shared area, a third shared area, a fourth shared area, a fifth shared area, and a sixth share. region.
  • the first shared area may be used to store the request data of the OS1 to the OS
  • the second shared area may be used to store the request data of the OS2 to the OS
  • the third shared area may be used to store the request data of the OS3 to the OS.
  • the fourth shared area is used to store the reply data of the OS to the OS1
  • the fifth shared area is used to store the reply data of the OS to the OS2
  • the sixth shared area is used to store the reply data of the OS to the OS3.
  • the correspondence between the request data of the client operating system and the shared area and the correspondence between the reply data of the server operating system and the shared operating system of the client operating system may be recorded in a message structure for storing the shared area information (for example, a linked list) In the data structure).
  • each client operating system can know which shared area its request data to the server operating system should be written to.
  • the server operating system replies to each client operating system, the message structure can also know that the reply should be replied. Which shared area the data is written to.
  • 3 is a schematic flow chart of another embodiment of the method. As shown in FIG. 3, the method includes:
  • multiple client operating systems can write request data in a preset shared memory space in the same time period to initiate an access request to the server operating system.
  • the operating system can respond to requests from the client operating system according to its own operating conditions. It is more efficient than a solution that can only process one client operating system data request at a time.
  • the request message may be in a blocked state until the server operating system starts processing the request message. If the server operating system crashes and the service is abnormal, after the server operating system restarts, a reset message may be sent to the corresponding client operating system, so that the client operating system can initialize its corresponding shared area and rewrite.
  • Request data to establish a connection with the server operating system.
  • the server operating system may also send a reset message to the corresponding client operating system to interrupt the processing request.
  • the server operating system sends a reset message in a similar manner to the write reply data. As shown in FIG. 4, the method further includes:
  • the server operating system writes a reset message for the client operating system to the preset shared memory space.
  • the server operating system may write a reset message to one of the shared areas. Specifically, the client operating system is determined according to the message structure. The shared area is written to the shared area.
  • step 104 For the specific method of the notification, refer to step 104, and details are not described herein again.
  • the client operating system acquires the reset message from the preset shared memory space, and re-initializes the preset shared memory space according to the reset message.
  • the client operating system When the preset shared space is divided into multiple shared areas, the client operating system first determines a shared area corresponding to the client operating system according to the message structure, and then reads a reset message from the shared area. .
  • the embodiment of the present application further provides a device for sharing a file system by using multiple operating systems, which can be used in the electronic device 10 of FIG. 1.
  • the device 400 includes:
  • the request data writing module 401 is configured to: the client operating system writes the request data to the preset shared memory space, where the preset shared memory space supports access by at least two operating systems;
  • the first notification module 402 is configured to notify the server operating system of the access request of the client operating system
  • a reply data writing module 403 configured to query the request data in the preset shared memory space by the server operating system, and write reply data to the preset shared memory space according to the request data;
  • a second notification module 404 configured to notify the client operating system of the reply of the server operating system
  • a file mounting module 405, configured to: acquire, by the client operating system, the reply data from the preset shared memory space, and mount the target folder in the server operating system according to the reply data to Under the client operating system.
  • the embodiment of the present application provides a space that can be accessed by multiple operating systems by using a preset shared memory space, and uses the preset shared memory space to store an access request of the client operating system for the server operating system, and a server operating system.
  • the reply data to the client operating system, so that the client operating system can mount the target folder in the server operating system under the client operating system according to the reply data. This enables the sharing of file systems between virtual machines and between virtual machines and hosts.
  • the device 400 further includes:
  • the partitioning module 406 is configured to divide the preset shared memory space into at least two shared areas, and establish an information structure for storing the at least two shared area information.
  • the request data writing module 401 is specifically configured to:
  • the reply data writing module 403 is specifically configured to:
  • the file mount module 405 is specifically configured to:
  • the device 400 further includes:
  • the reset message writing module 407 is configured to write, by the server operating system, a reset message for the client operating system to the preset shared memory space.
  • the initialization module 408 is configured to obtain, by the client operating system, the reset message from the preset shared memory space, and reinitialize the preset shared memory space according to the reset message.
  • the second notification module 404 is further configured to notify the client operating system of a reset message of the server operating system.
  • the first notification module 402 is specifically configured to:
  • the interrupt request is sent from the client operating system to the server operating system;
  • the sink command is sent from the client operating system to the server operating system;
  • the client operating system sends a trap instruction to the host, and then the host sends an interrupt request to the server operating system.
  • the second notification module 404 is specifically configured to:
  • the interrupt request is sent from the server operating system to the client operating system;
  • the server is a virtual machine and the client is a host, the server is sent from the server operating system to the client operating system;
  • the slave operating system sends a trap instruction to the host, and then the host sends an interrupt request to the client operating system.
  • the device 400 further includes:
  • the shared memory space setting module 409 is configured to set the preset shared memory space, so that at least two operating systems can access the preset shared memory space.
  • FIG. 7 is a schematic structural diagram of hardware of an electronic device 10 according to an embodiment of the present disclosure. As shown in FIG. 7, the electronic device 10 includes:
  • processors 11 and a memory 12 are exemplified by a processor 11 in FIG.
  • the processor 11 and the memory 12 can be connected by a bus or other means, as exemplified by a bus connection in FIG.
  • the memory 12 is a non-volatile computer readable storage medium, and can be used for storing non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the methods in the embodiments of the present application.
  • the processor 11 executes various functional applications of the server and data processing by executing non-volatile software programs, instructions, and modules stored in the memory 12, that is, implementing the methods of the above method embodiments.
  • the memory 12 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store an operation created according to the use of the device sharing the file system by the multiple operating system. Data, etc. Further, the memory 12 may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, flash memory device, or other nonvolatile solid state storage device. In some embodiments, memory 12 can optionally include memory remotely located relative to processor 11 that can be connected to electronic device 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the one or more modules are stored in the memory 12, and when executed by the one or more processors 11, performing a method of sharing a file system by multiple operating systems in any of the above method embodiments, for example, performing the above
  • the method steps 101 to 105 in FIG. 2, the method steps 201 to 208 in FIG. 3, and the method steps 301 to 303 in FIG. 4 implement the modules 401-405 and FIG. 6 in FIG.
  • the electronic device of the embodiment of the present application exists in various forms, including but not limited to:
  • Mobile communication devices These devices are characterized by mobile communication functions and are mainly aimed at providing voice and data communication.
  • Such terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.
  • Ultra-mobile personal computer equipment This type of equipment belongs to the category of personal computers, has computing and processing functions, and generally has mobile Internet access.
  • Such terminals include: PDAs, MIDs, and UMPC devices, such as the iPad.
  • Portable entertainment devices These devices can display and play multimedia content. Such devices include: audio, video players (such as iPod), handheld game consoles, e-books, and smart toys and portable car navigation devices.
  • the server consists of a processor, a hard disk, a memory, a system bus, etc.
  • the server is similar to a general-purpose computer architecture, but because of the need to provide highly reliable services, processing power and stability High reliability in terms of reliability, security, scalability, and manageability.
  • the embodiment of the present application provides a non-transitory computer readable storage medium storing computer-executable instructions that are executed by one or more processors, such as in FIG.
  • the processor 11 may be configured to cause the one or more processors to perform the method in any of the foregoing method embodiments, for example, to perform the method steps 101 to 105 in FIG. 2 described above, the method step 201 in FIG. Go to step 208, method steps 301 to 303 in FIG. 4, and implement the functions of modules 401-405 and modules 401-409 in FIG.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the various embodiments can be implemented by means of software plus a general hardware platform, and of course, by hardware.
  • a person skilled in the art can understand that all or part of the process of implementing the above embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a random storage memory (Random). Access Memory, RAM), etc.

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Abstract

La présente invention, selon les modes de réalisation, concerne un procédé et un appareil de partage de système de fichier pour un système multi-exploitation, ainsi qu'un dispositif électronique. Ledit procédé comprend les étapes suivantes : un système d'exploitation de client écrit des données de demande dans un espace prédéfini de mémoire partagée, l'espace prédéfini de mémoire partagée prenant en charge l'accès d'au moins deux systèmes d'exploitation ; la demande d'accès du système d'exploitation de client est notifiée à un système d'exploitation de serveur ; le système d'exploitation de serveur interroge les données de demande dans l'espace prédéfini de mémoire partagée, et écrit des données de réponse dans l'espace prédéfini de mémoire partagée en fonction des données de demande ; la réponse du système d'exploitation de serveur est notifiée au système d'exploitation de client ; le système d'exploitation de client obtient les données de réponse à partir de l'espace prédéfini de mémoire partagée, et monte, en fonction des données de réponse, un dossier cible dans le système d'exploitation de serveur pour le système d'exploitation de client. Les modes de réalisation de la présente invention permettent d'obtenir un partage de système de fichier entre des machines virtuelles et entre des machines virtuelles et des machines hôtes.
PCT/CN2017/119288 2017-12-28 2017-12-28 Procédé et appareil de partage de système de fichier pour système multi-exploitation et dispositif électronique WO2019127191A1 (fr)

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CN201780003297.9A CN108369604B (zh) 2017-12-28 2017-12-28 一种多操作系统共享文件系统的方法、装置和电子设备
PCT/CN2017/119288 WO2019127191A1 (fr) 2017-12-28 2017-12-28 Procédé et appareil de partage de système de fichier pour système multi-exploitation et dispositif électronique

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