WO2019127476A1 - Virtual system bluetooth communication method and device, virtual system, storage medium, and electronic apparatus - Google Patents

Abstract

The present disclosure relates to the technical field of virtual machines, and specifically relates to a virtual system Bluetooth communication method, a virtual system Bluetooth communication device, a virtual system, a storage medium, and an electronic apparatus. The virtual system Bluetooth communication method comprises: in response to an operational instruction of a Bluetooth component of a virtual machine, calling a virtual Bluetooth communication interface function of a virtual Bluetooth front end of the virtual machine; a virtual Bluetooth back end of a host acquiring a parameter of the operational instruction by means of cross-system communication; and the virtual Bluetooth back end of the host calling, on the basis of the parameter of the operational instruction, a Bluetooth driving function of a host kernel, so as to control the Bluetooth component. The embodiment of the present disclosure allows independent execution of a Bluetooth operational instruction in each virtual machine, thereby simplifying the control method and achieving independent control of a Bluetooth component.

Description

Virtual system Bluetooth communication method and device, virtual system, storage medium and electronic device Technical field

The present disclosure relates to the field of virtual machine technologies, and in particular, to a virtual system Bluetooth communication method, a virtual system Bluetooth communication device, a virtual system, a storage medium, and an electronic device.

Background technique

A virtual machine is a computer system that has full hardware system functionality through software emulation and runs in a completely isolated environment. In a virtual machine application environment, multiple different operating systems are based on analog hardware, sharing physical hardware devices such as CPUs, memory, and input and output devices.

The prior art generally adopts a virtualization scheme based on Qemu/KVM technology, and generally includes a Host operating system (host operating system), such as an Android system, a Windows system, or a Linux system; and several virtual guest operating systems (virtual Operating system). These operating systems run on the same set of hardware processor chips, sharing processor and peripheral resources. When implementing the above virtualization architecture on a terminal device such as a mobile phone or a tablet, it is necessary to solve the virtualization of all hardware devices and allow the virtual operating system to use real hardware devices such as memory, Bluetooth or speakers. In the prior art, when Bluetooth virtualization is performed, the implementation is generally based on the same operating system, that is, the virtual operating system and the host operating system share the same kernel space (kernel), and can only be implemented in the framework layer and the specific application (Application). Separation. For example, when the Host operating system (or Guest operating system) operates the speakers, the Guest operating system (or Host operating system) cannot operate Bluetooth, microphones, or other hardware devices. That is, the prior art does not completely separate Bluetooth virtualization in the Guest operating system.

It should be noted that the information disclosed in the Background section above is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Summary of the invention

According to an embodiment of the present disclosure, a virtual system Bluetooth communication method, a virtual system Bluetooth communication device, a virtual system, a storage medium, and an electronic device can implement independent control of a Bluetooth component by a virtual machine.

According to a first aspect of the present disclosure, a virtual system Bluetooth communication method is provided, including:

Responding to a virtual Bluetooth communication interface function of the virtual Bluetooth front end of the virtual machine in response to an operation instruction of the Bluetooth component of the virtual machine;

The virtual Bluetooth backend of the host acquires parameters of the operation instruction by means of cross-system communication;

The virtual Bluetooth backend of the host invokes a Bluetooth driver function of the host kernel to control the Bluetooth component based on parameters of the operation instruction.

In an exemplary embodiment of the present disclosure, the method further includes:

The virtual Bluetooth back end of the host receives serial port data from the host kernel;

The virtual Bluetooth back end of the host transmits the serial port data to the virtual Bluetooth front end by means of cross-system communication;

The virtual Bluetooth front end transmits the serial port data to an application of the virtual machine.

In an exemplary embodiment of the present disclosure, the method further includes: the virtual system includes a plurality of virtual machines, the plurality of virtual machines sharing a virtual Bluetooth back end of the host.

In an exemplary embodiment of the present disclosure, the virtual Bluetooth communication interface function of the virtual Bluetooth front end of the calling virtual machine includes:

Transmitting the operation instruction to a framework layer of the virtual machine through a virtual Bluetooth Java interface;

Transmitting, by the framework layer, the operation instruction to a protocol layer of the virtual machine, so as to encapsulate the operation instruction according to a preset protocol;

The virtual Bluetooth communication interface function is invoked according to the encapsulated operation instruction.

In an exemplary embodiment of the present disclosure, the cross-system communication method includes:

Any of shared memory, QEMU emulator pipes, or Virtio drivers.

In an exemplary embodiment of the present disclosure, the operation instruction includes at least one of the following cases:

Turning on, off, scanning, pairing, connecting, hardware communication interface configuration of the Bluetooth component, reading data from the hardware communication interface, and writing data to the Bluetooth chip through the hardware communication interface;

The hardware communication interface includes a serial port or a USB interface.

According to a second aspect of the present disclosure, a virtual system Bluetooth communication device is provided, including:

The virtual Bluetooth front end is set in the virtual machine, and is set to respond to the operation instruction of the virtual component of the virtual machine to invoke the virtual Bluetooth communication interface function;

The virtual Bluetooth backend is disposed on the host, configured to acquire parameters of the operation instruction by means of cross-system communication, and invoke a Bluetooth driver function of the host kernel to control the Bluetooth component based on the parameter of the operation instruction.

In an exemplary embodiment of the present disclosure, data is transmitted between the virtual Bluetooth client and the virtual Bluetooth back end by means of cross-system communication.

In an exemplary embodiment of the present disclosure, the cross-system communication method includes:

Any of shared memory, QEMU emulator pipes, or Virtio drivers.

According to a third aspect of the present disclosure, a virtual system includes:

The virtual Bluetooth front end is configured to invoke a virtual Bluetooth communication interface function in response to an operation instruction of the Bluetooth component of the virtual machine to transmit data between the virtual Bluetooth back end of the host and the virtual Bluetooth back end of the host.

According to a fourth aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the virtual system Bluetooth communication method described above.

According to a fifth aspect of the present disclosure, an electronic device is provided, including:

Processor;

a memory, configured to store executable instructions of the processor;

Wherein the processor is configured to perform the following operations by executing the executable instructions:

Responding to a virtual Bluetooth communication interface function of the virtual Bluetooth front end of the virtual machine in response to an operation instruction of the Bluetooth component of the virtual machine;

The virtual Bluetooth backend of the host acquires parameters of the operation instruction by means of cross-system communication;

The virtual Bluetooth backend of the host invokes a Bluetooth driver function of the host kernel to control the Bluetooth component based on parameters of the operation instruction.

It can be seen from the above technical solutions that the advantages and positive effects of a virtual system Bluetooth communication method provided by the present disclosure are as follows:

The virtual system Bluetooth communication method provided by an embodiment of the present disclosure can invoke a virtual Bluetooth communication interface function of the virtual Bluetooth front end when the virtual machine receives an operation instruction for the Bluetooth component; thereby enabling the virtual Bluetooth of the host The terminal can obtain the parameters of the operation instruction from the virtual Bluetooth front end by means of cross-system communication, and then can control the physical Bluetooth component according to the parameters of the operation instruction, thereby realizing independent control of the Bluetooth component by the virtual machine. By setting a virtual Bluetooth front end in the virtual machine, the method can independently execute the Bluetooth instruction inside the virtual machine and simplify the control mode, thereby facilitating the independent control of the Bluetooth component by each virtual machine.

Other features and advantages of the present disclosure will be apparent from the following detailed description.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

1 is a schematic diagram of a method for a Bluetooth communication method of a virtual system according to an embodiment of the present disclosure;

2 is a schematic diagram of a method for calling a virtual Bluetooth communication interface function according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a method for executing the control parameter by a virtual Bluetooth backend according to an embodiment of the present disclosure;

4 is a schematic diagram of another method for a Bluetooth communication method of a virtual system according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a composition of a virtual system Bluetooth communication device according to an embodiment of the present disclosure;

6 is a schematic diagram of a virtual machine and host framework structure and a data transmission process according to an embodiment of the present disclosure;

7 is another schematic diagram of a virtual system Bluetooth communication device according to an embodiment of the present disclosure;

FIG. 8 is still another schematic diagram of a virtual system Bluetooth communication device according to an embodiment of the present disclosure.

Detailed ways

Example embodiments will now be described more fully in conjunction with the drawings. However, the example embodiments can be embodied in a variety of forms and should not be construed as being limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more complete and complete, To those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are set forth However, one skilled in the art will appreciate that one or more of the specific details may be omitted or other methods, components, devices, steps, etc. may be employed. In other instances, various aspects of the present disclosure are not obscured by the details of the invention.

In addition, the drawings are merely schematic representations of the present disclosure and are not necessarily to scale. The same reference numerals in the drawings denote the same or similar parts, and the repeated description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily have to correspond to physically or logically separate entities. These functional entities may be implemented in software, or implemented in one or more hardware modules or integrated circuits, or implemented in different network and/or processor devices and/or microcontroller devices.

The terms "a", "an", "the" and "the" are used to mean the presence of one or more elements/components, etc.; the terms "including" and "having" are used to mean an inclusive. Meaning and means that there may be additional elements/components/etc. in addition to the listed elements/components/etc; the terms "first" and "second" etc. are used only as marks, not the number of objects limit.

The operating system can be divided into two categories, one is the native system (host system), that is, the host system; it can be called HostOS, Host system, Host or host; the host system can be Windows system, Linux system or Android system. The other type is a parasitic system, that is, a virtual system (virtual machine); the virtual system may also be called a Guest OS, a Guest system, or a Guest terminal; the virtual system may be a Windows system or an Android system.

In the exemplary embodiment, a virtual system Bluetooth communication method is firstly provided, which can be applied to control of a hardware device of a virtual system in a mobile phone, a tablet or other intelligent terminal based on a Windows system, a Linux system or an Android system, in particular, a Bluetooth component. control. Each virtual system has its own independent operating system. Each virtual system has its own independent kernel space and user space and has its own independent storage devices. Referring to FIG. 1, the above-described virtual system Bluetooth communication method may include the following steps:

S1. In response to an operation instruction of a Bluetooth component of the virtual machine, invoke a virtual Bluetooth communication interface function of the virtual Bluetooth front end of the virtual machine;

S2. The virtual Bluetooth back end of the host acquires parameters of the operation instruction by means of cross-system communication;

S3. The virtual Bluetooth backend of the host invokes a Bluetooth driver function of the host kernel to control the Bluetooth component based on parameters of the operation instruction.

The virtual system Bluetooth communication method provided by the example embodiment can invoke the virtual Bluetooth communication interface function of the virtual Bluetooth front end when the virtual machine receives an operation instruction for the Bluetooth component; thereby enabling the virtual Bluetooth back end of the host to pass The way of cross-system communication is obtained by the virtual Bluetooth front end, and the physical Bluetooth component can be controlled according to the parameters of the operation instruction, thereby realizing independent control of the Bluetooth component by the virtual machine. By setting a virtual Bluetooth front end in the virtual machine, the method can independently execute the Bluetooth instruction inside the virtual machine and simplify the control mode, thereby facilitating the independent control of the Bluetooth component by each virtual machine.

Hereinafter, each step of the virtual system Bluetooth communication method in the present exemplary embodiment will be described in more detail with reference to the accompanying drawings and embodiments.

Step S1, in response to an operation instruction of the Bluetooth component of the virtual machine, invoke a virtual Bluetooth communication interface function of the virtual Bluetooth front end of the virtual machine.

In this example embodiment, referring to FIG. 6, a virtual Bluetooth front end (guest vBT client) may be preset in the virtual machine. When the virtual machine in the smart terminal is running, it can detect in real time whether there is an application, process or service with an operation instruction for the physical Bluetooth component of the host. For example, the above operation instructions may be opening, closing, scanning, pairing, connecting, hardware communication interface configuration of the Bluetooth component, reading data from the hardware communication interface, and writing data to the Bluetooth chip through the hardware communication interface. In addition, the above hardware communication interface may be a data interface such as a serial port or a USB interface, but is not limited to the above two hardware communication interfaces. The disclosure does not specifically limit the form of the hardware communication interface.

A combination of any one or any of a plurality of Bluetooth components, such as opening, closing, pairing, connecting, setting a serial port, reading serial data, and writing serial data. The disclosure does not specifically limit the specific content of the operation instructions.

If it is detected that there is an operation instruction for the Bluetooth component, the virtual Bluetooth communication interface function of the virtual Bluetooth front end may be invoked according to the operation instruction, and the corresponding parameter of the operation instruction is obtained after the virtual Bluetooth communication interface function is executed by the virtual Bluetooth front end.

Specifically, referring to FIG. 2, the foregoing calling the virtual Bluetooth communication interface function according to the operation instruction may include the following steps:

Step S11, sending the operation instruction to the framework layer of the virtual machine through a virtual Bluetooth Java interface;

Step S12, sending, by the framework layer, the operation instruction to a protocol layer of the virtual machine, so as to encapsulate the operation instruction according to a preset protocol;

Step S13, calling a virtual Bluetooth communication interface function according to the encapsulated operation instruction information.

For the virtual system, the virtual network communication interface function related to the HAL layer (hardware abstraction layer) of the virtual system and the vendor module (communication support module) can be obtained according to the operation instruction. The virtual Bluetooth communication interface function refers to a hardware communication interface function for communicating between the virtual system and the Bluetooth component, such as a UART interface function. In addition, vendor refers to the Bluetooth communication related code provided by the Bluetooth manufacturer or platform and stored in the user space. The virtual Bluetooth Java interface may refer to a Bluetooth API (Application Programming Interface) and relies on the Java Universal Connection Framework.

In step S2, the virtual Bluetooth backend of the host acquires parameters of the operation instruction by means of cross-system communication.

In this example, referring to FIG. 6, a virtual Bluetooth backend (Host vBT Server) may be preset in the host, and the virtual Bluetooth backend may perform data communication with the virtual Bluetooth front end by means of cross-system communication. Interaction.

For example, the foregoing cross-system communication method may be a shared memory (Share Memory), a QEMU simulator pipeline (QEMU pipe), or a Virtio driver, and may be selected by using a virtual machine operating system and a host operating system type. . The disclosure does not specifically limit the manner of data interaction between the virtual Bluetooth backend and the virtual Bluetooth client.

In step S3, the virtual Bluetooth backend of the host invokes a Bluetooth driver function of the host kernel to control the Bluetooth component based on the parameters of the operation instruction.

In this example, after the virtual Bluetooth backend of the host acquires the parameters of the operation instruction, the corresponding operation may be performed on the Bluetooth component according to the parameter. Specifically, referring to FIG. 3, the step may include:

Step S31, the virtual Bluetooth backend invokes a Bluetooth driver function corresponding to the host kernel according to the parameter of the operation instruction;

Step S32, calling a preset interface according to the Bluetooth driver function;

Step S33, transmitting parameters of the operation instruction to the Bluetooth component through the interface, so that the Bluetooth component executes the operation instruction.

After receiving the parameters of the operation instruction by means of cross-system communication, the virtual Bluetooth backend can actively call the corresponding Bluetooth component driving function to the host kernel according to the parameter. For example, if the parameter contains a call parameter to the UART interface, the corresponding UART interface driver (UART Driver) is called in the host kernel. Finally, the operation command can be sent to the Bluetooth chip through the UART interface, and the Bluetooth component can perform the corresponding control action, thereby realizing the data interaction between the virtual system and the physical Bluetooth chip and realizing the independent control of the Bluetooth component of the virtual system. .

Based on the above, in other exemplary embodiments of the present disclosure, as shown in FIG. 4, the virtual system Bluetooth communication method may further include:

Step S401, the virtual Bluetooth back end of the host receives serial port data from the host kernel;

Step S402, the virtual Bluetooth back end of the host transmits the serial port data to the virtual Bluetooth front end by means of cross-system communication;

Step S403, the virtual Bluetooth front end transmits the serial port data to an application of the virtual machine.

For the host, it is possible to determine in real time whether there is a pending Bluetooth data of a virtual machine in the Bluetooth transmission bus or the Bluetooth communication serial port. When detecting the presence of the to-be-processed Bluetooth data, the virtual Bluetooth backend may acquire the to-be-processed Bluetooth data through the host kernel, and then send the to-be-processed Bluetooth data to the virtual by means of cross-system communication. a Bluetooth front end; the Bluetooth processing data is further transmitted by the virtual Bluetooth front end to a corresponding application.

Referring to FIG. 6, after the virtual Bluetooth front end receives the pending Bluetooth data by means of cross-system communication, the pending Bluetooth data can be transmitted to the HAL layer of the virtual machine, and the HAL layer of the virtual machine is transmitted to the Bluetooth protocol. The layer decapsulates the data packet according to the preset protocol, and then passes the Bluetooth protocol layer to the Frameworks layer, and finally notifies the specific application, and can perform corresponding display.

Further, in other exemplary embodiments of the present disclosure, as shown in FIG. 6, when there are multiple virtual machines in the host operating system, a virtual Bluetooth front end may be separately set for each virtual machine, and each virtual machine may share the same A virtual Bluetooth backend for a host. That is, each virtual Bluetooth front end can perform data interaction with the virtual Bluetooth back end of the host and operate and control the Bluetooth component. In this way, each virtual machine can independently control the Bluetooth component.

The Bluetooth communication method provided by the present disclosure can receive an operation instruction and parameters of a virtual Bluetooth front end transmission in a virtual machine by setting a virtual Bluetooth back end in the host, and can call a corresponding interface driving function in the host kernel, and finally the virtual machine is The operation instructions for the Bluetooth component are sent to the physical Bluetooth component of the host to implement control of the Bluetooth component. By setting up a virtual Bluetooth front end in the virtual machine and virtualizing the Bluetooth back end in the host, and enabling data transmission, each virtual machine can be independent of the host operating system and can be used in the respective virtual operating system for the Bluetooth component. Independent control. At the same time, operational data can be saved in its own virtual operating system.

Of course, in other exemplary embodiments of the present disclosure, when the operation instruction is an operation instruction of another device, for example, a hardware device such as a speaker, an external memory, or a data interface, the above method can also be applied to the virtual The control of these devices.

It is to be noted that the above-described drawings are merely illustrative of the processes included in the method according to the exemplary embodiments of the present invention, and are not intended to be limiting. It is easy to understand that the processing shown in the above figures does not indicate or limit the chronological order of these processes. In addition, it is also easy to understand that these processes may be performed synchronously or asynchronously, for example, in a plurality of modules.

Further, referring to FIG. 5, a virtual system Bluetooth communication device 5 is further provided in the embodiment of the present example, including: a virtual Bluetooth front end 51, and a virtual Bluetooth back end 52. among them:

The virtual Bluetooth front end 51 is disposed in the virtual machine and can be set to respond to an operation instruction of the Bluetooth component of the virtual machine and invoke a virtual Bluetooth communication interface function.

The virtual Bluetooth back end 52 is disposed on the host, and may be configured to acquire parameters of the operation instruction by means of cross-system communication, and invoke a Bluetooth driver function of the host kernel to control the Bluetooth component based on the parameter of the operation instruction.

Data may be transmitted between the virtual Bluetooth front end 51 and the virtual Bluetooth back end 52 by means of cross-system communication. The cross-system communication manner may specifically adopt any one of a shared memory, a QEMU simulator pipeline, or a Virtio driver.

In addition, in the present exemplary embodiment, referring to FIG. 6, the architecture of the virtual machine 61 described above may include: an application layer 611, a framework layer 612, a protocol layer 613, a hardware abstraction layer 614, and a communication support module 615, in addition to A virtual Bluetooth front end 616 can be included. among them,

The application layer 611 can be configured to receive the operation instruction and send the operation instruction to a framework layer of the virtual machine. The framework layer 612 can be used to send the operational instructions to a protocol layer of the virtual machine. The protocol layer 613 can be used to encapsulate the operation instruction according to a preset protocol. The hardware abstraction layer 614 and the communication support module 615 can be used to provide a virtual Bluetooth communication interface function.

At the same time, the host 62 can adopt the same architecture as the virtual machine, including the application layer 621 of the host system, the framework layer 622, the protocol layer 623, the hardware abstraction layer 624, and the communication support module 615.

The specific details of each module in the above-mentioned virtual system Bluetooth communication device have been described in detail in the corresponding virtual system Bluetooth communication method, and therefore will not be described herein.

Further, in the embodiment of the present example, a virtual system is further provided, where the virtual system includes the virtual Bluetooth front end described above. The virtual Bluetooth front end is configured to invoke a virtual Bluetooth communication interface function in response to an operation instruction of the Bluetooth component of the virtual machine to transfer data between the virtual Bluetooth back end of the host and the virtual Bluetooth back end of the host.

In an exemplary embodiment of the present disclosure, there is also provided an electronic device capable of implementing the above-described virtual system Bluetooth communication method.

Those skilled in the art will appreciate that various aspects of the present invention can be implemented as a system, method, or program product. Therefore, various aspects of the present invention may be embodied in the form of a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to herein. "Circuit," "module," or "system."

An electronic device 700 in accordance with such an embodiment of the present invention is described below with reference to FIG. The electronic device 700 shown in FIG. 7 is merely an example and should not impose any limitation on the function and scope of use of the embodiments of the present invention.

As shown in Figure 7, electronic device 700 is embodied in the form of a general purpose computing device. The components of the electronic device 700 may include, but are not limited to, the at least one processing unit 710, the at least one storage unit 720, and a bus 730 that connects different system components (including the storage unit 720 and the processing unit 710).

Wherein, the storage unit stores program code, which can be executed by the processing unit 710, such that the processing unit 710 performs various exemplary embodiments according to the present invention described in the "Exemplary Method" section of the present specification. The steps of the embodiment. For example, the processing unit 710 can execute S1 as shown in FIG. 1 and invoke a virtual Bluetooth communication interface function of the virtual Bluetooth front end of the virtual machine in response to an operation instruction of the Bluetooth component of the virtual machine; S2, after the virtual Bluetooth of the host The terminal acquires the parameter of the operation instruction by means of cross-system communication; S3, the virtual Bluetooth back end of the host invokes a Bluetooth driver function of the host kernel to control the Bluetooth component based on the parameter of the operation instruction.

The storage unit 720 can include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 7201 and/or a cache storage unit 7202, and can further include a read only storage unit (ROM) 7203.

The storage unit 720 can also include a program/utility 7204 having a set (at least one) of the program modules 7205, such as but not limited to: an operating system, one or more applications, other program modules, and program data, Implementations of the network environment may be included in each or some of these examples.

Bus 730 may be representative of one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local area using any of a variety of bus structures. bus.

The electronic device 700 can also communicate with one or more external devices 600 (eg, a keyboard, pointing device, Bluetooth device, etc.), and can also communicate with one or more devices that enable the user to interact with the electronic device 600, and/or with Any device (eg, router, modem, etc.) that enables the electronic device 700 to communicate with one or more other computing devices. This communication can take place via an input/output (I/O) interface 750. Also, electronic device 700 can communicate with one or more networks (eg, a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through network adapter 760. As shown, network adapter 760 communicates with other modules of electronic device 700 via bus 730. It should be understood that although not shown in the figures, other hardware and/or software modules may be utilized in conjunction with electronic device 700, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives. And data backup storage systems, etc.

Through the description of the above embodiments, those skilled in the art will readily understand that the example embodiments described herein may be implemented by software or by software in combination with necessary hardware. Therefore, the technical solution according to an embodiment of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network. A number of instructions are included to cause a computing device (which may be a personal computer, server, terminal device, or network device, etc.) to perform a method in accordance with an embodiment of the present disclosure.

In an exemplary embodiment of the present disclosure, there is also provided a computer readable storage medium having stored thereon a program product capable of implementing the above method of the present specification. In some possible implementations, aspects of the present invention may also be embodied in the form of a program product comprising program code for causing said program product to run on a terminal device The terminal device performs the steps according to various exemplary embodiments of the present invention described in the "Exemplary Method" section of the present specification.

Referring to FIG. 8, a program product 800 for implementing the above method, which may employ a portable compact disk read only memory (CD-ROM) and includes program code, and may be in a terminal device, is illustrated in accordance with an embodiment of the present invention. For example running on a personal computer. However, the program product of the present invention is not limited thereto, and in the present document, the readable storage medium may be any tangible medium containing or storing a program that can be used by or in connection with an instruction execution system, apparatus or device.

The program product can employ any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive lists) of readable storage media include: electrical connections with one or more wires, portable disks, hard disks, random access memory (RAM), read only memory (ROM), erasable Programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the foregoing.

The computer readable signal medium may include a data signal that is propagated in the baseband or as part of a carrier, carrying readable program code. Such propagated data signals can take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing. The readable signal medium can also be any readable medium other than a readable storage medium that can transmit, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium can be transmitted using any suitable medium, including but not limited to wireless, wireline, optical cable, RF, etc., or any suitable combination of the foregoing.

Program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++, etc., including conventional procedural Programming language—such as the "C" language or a similar programming language. The program code can execute entirely on the user computing device, partially on the user device, as a stand-alone software package, partially on the remote computing device on the user computing device, or entirely on the remote computing device or server. Execute on. In the case of a remote computing device, the remote computing device can be connected to the user computing device via any kind of network, including a local area network (LAN) or wide area network (WAN), or can be connected to an external computing device (eg, provided using an Internet service) Businesses are connected via the Internet).

It should be noted that although several modules or units of equipment for action execution are mentioned in the detailed description above, such division is not mandatory. Indeed, in accordance with embodiments of the present disclosure, the features and functions of two or more modules or units described above may be embodied in one module or unit. Conversely, the features and functions of a module or unit described above may be further divided into multiple modules or units.

In addition, although the various steps of the method of the present disclosure are described in a particular order in the drawings, this is not required or implied that the steps must be performed in the specific order, or all the steps shown must be performed to achieve the desired. result. Additionally or alternatively, certain steps may be omitted, multiple steps being combined into one step execution, and/or one step being decomposed into multiple step executions and the like.

Through the description of the above embodiments, those skilled in the art will readily understand that the example embodiments described herein may be implemented by software or by software in combination with necessary hardware. Therefore, the technical solution according to an embodiment of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network. A number of instructions are included to cause a computing device (which may be a personal computer, server, mobile terminal, or network device, etc.) to perform a method in accordance with an embodiment of the present disclosure.

Other embodiments of the present disclosure will be apparent to those skilled in the <RTIgt; The present application is intended to cover any variations, uses, or adaptations of the present disclosure, which are in accordance with the general principles of the disclosure and include common general knowledge or common technical means in the art that are not disclosed in the present disclosure. . The specification and examples are to be regarded as illustrative only,

Claims (11)

A virtual system Bluetooth communication method includes: Responding to a virtual Bluetooth communication interface function of the virtual Bluetooth front end of the virtual machine in response to an operation instruction of the Bluetooth component of the virtual machine; The virtual Bluetooth backend of the host acquires parameters of the operation instruction by means of cross-system communication; The virtual Bluetooth backend of the host invokes a Bluetooth driver function of the host kernel to control the Bluetooth component based on parameters of the operation instruction. The method of claim 1 further comprising: The virtual Bluetooth back end of the host receives serial port data from the host kernel; The virtual Bluetooth back end of the host transmits the serial port data to the virtual Bluetooth front end by means of cross-system communication; The virtual Bluetooth front end transmits the serial port data to an application of the virtual machine. The virtual system Bluetooth communication method according to claim 1 or 2, characterized in that The virtual system includes a plurality of virtual machines that share a virtual Bluetooth back end of the host. The method according to claim 1, wherein the virtual Bluetooth communication interface function of the virtual Bluetooth front end of the calling virtual machine comprises: Transmitting the operation instruction to a framework layer of the virtual machine through a virtual Bluetooth Java interface; Transmitting, by the framework layer, the operation instruction to a protocol layer of the virtual machine, so as to encapsulate the operation instruction according to a preset protocol; The virtual Bluetooth communication interface function is invoked according to the encapsulated operation instruction. The method of claim 1, the cross-system communication method comprising: Any of shared memory, QEMU emulator pipes, or Virtio drivers. The method of claim 1, the operational instructions comprising at least one of the following: Turning on, off, scanning, pairing, connecting, hardware communication interface configuration of the Bluetooth component, reading data from the hardware communication interface, and writing data to the Bluetooth chip through the hardware communication interface; The hardware communication interface includes a serial port or a USB interface. A virtual system Bluetooth communication device includes: The virtual Bluetooth front end is set in the virtual machine, and is set to respond to the operation instruction of the virtual component of the virtual machine to invoke the virtual Bluetooth communication interface function; The virtual Bluetooth backend is disposed on the host, configured to acquire parameters of the operation instruction by means of cross-system communication, and invoke a Bluetooth driver function of the host kernel to control the Bluetooth component based on the parameter of the operation instruction. The apparatus according to claim 7, wherein the cross-system communication method comprises: Any of shared memory, QEMU emulator pipes, or Virtio drivers. A virtual system, the virtual system comprising: The virtual Bluetooth front end is configured to invoke a virtual Bluetooth communication interface function in response to an operation instruction of the Bluetooth component of the virtual machine to transmit data between the virtual Bluetooth back end of the host and the virtual Bluetooth back end of the host. A storage medium arranged to store program code for performing the method of any one of claims 1 to 6. An electronic device comprising: Processor; a memory, configured to store executable instructions of the processor; Wherein the processor is configured to perform the following operations by executing the executable instructions: Responding to a virtual Bluetooth communication interface function of the virtual Bluetooth front end of the virtual machine in response to an operation instruction of the Bluetooth component of the virtual machine; The virtual Bluetooth backend of the host acquires parameters of the operation instruction by means of cross-system communication; The virtual Bluetooth backend of the host invokes a Bluetooth driver function of the host kernel to control the Bluetooth component based on parameters of the operation instruction.

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