CN111443982B - Communication method of virtual machine, electronic device and non-transitory computer readable recording medium - Google Patents
Communication method of virtual machine, electronic device and non-transitory computer readable recording medium Download PDFInfo
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- CN111443982B CN111443982B CN201910040753.8A CN201910040753A CN111443982B CN 111443982 B CN111443982 B CN 111443982B CN 201910040753 A CN201910040753 A CN 201910040753A CN 111443982 B CN111443982 B CN 111443982B
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- 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
- G06F9/45504—Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
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- 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
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- 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
- G06F2009/45595—Network integration; Enabling network access in virtual machine instances
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Abstract
The disclosure provides a communication method of a virtual machine, an electronic device and a non-transitory computer readable recording medium. The communication method of the virtual machine is suitable for the virtual machine architecture, and the method comprises the following steps: transmitting an interrupt instruction to a second virtual machine through a shared link by a first virtual machine; reading the instruction data corresponding to the interrupt instruction in the shared configuration database by the second virtual machine; and executing the instruction data by the second virtual machine, and transmitting the result data to the first virtual machine through the virtual control link, so as to exchange data between the first virtual machine and the second virtual machine through the virtual control link.
Description
Technical Field
The present disclosure relates to a method of a virtual machine and an electronic device, and more particularly, to a communication method of a virtual machine and an electronic device.
Background
In an integrated electronic device including a Home Gateway (HGW) and an over-the-top (OTT), when the electronic device is started, a plurality of virtual machines configured on the electronic device are sequentially started. However, the virtual machines lack a synchronous communication mechanism and cannot be managed in a simple manner. In addition, the current method is not easy to manage the internet address of the basic network server, which causes difficulty in establishing connection with the basic network server by other electronic devices.
Disclosure of Invention
According to an embodiment of the present disclosure, a communication method for a virtual machine is disclosed, which is applicable to a virtual machine architecture, the communication method for the virtual machine includes the following steps: sending an interrupt instruction to a second virtual machine by a first virtual machine over a shared link; reading the instruction data corresponding to the interrupt instruction in the shared configuration database by the second virtual machine; and executing the instruction data by the second virtual machine, and transmitting the result data to the first virtual machine through the virtual control link, so as to exchange data between the first virtual machine and the second virtual machine through the virtual control link.
According to another embodiment, an electronic device is disclosed that includes a storage medium and a processor. The storage medium is used to store a plurality of program instructions. The processor is coupled to the storage medium and configured to execute the program instructions to execute a plurality of operations of the first virtual machine and the second virtual machine in the virtual machine architecture; wherein the processor is configured to perform operations comprising: the first virtual machine transmits an interrupt command to the second virtual machine through the shared link, the second virtual machine reads command data corresponding to the interrupt command from the shared configuration database, and the second virtual machine executes the command data, transmits result data to the first virtual machine through the virtual control link, and exchanges data between the first virtual machine and the second virtual machine through the virtual control link.
According to another embodiment, a non-transitory computer readable medium storing a plurality of program codes, wherein when the program codes are loaded into a processor, the processor executes the program codes to execute a virtual machine architecture and performs the following steps: transmitting an interrupt instruction to a second virtual machine through a shared link by a first virtual machine; reading the instruction data corresponding to the interrupt instruction in the shared configuration database by the second virtual machine; and executing the instruction data by the second virtual machine, and transmitting the result data to the first virtual machine through the virtual control link, so as to exchange data between the first virtual machine and the second virtual machine through the virtual control link.
Drawings
FIG. 1 is a schematic diagram illustrating a virtual machine running on an electronic device according to some embodiments of the present disclosure.
FIG. 2 is a flow chart illustrating a communication method of a virtual machine according to some embodiments of the present disclosure.
FIG. 3 is a flow chart illustrating the execution of a calling remote script in a virtual machine.
FIG. 4 is a flow chart illustrating a communication method of a virtual machine according to some embodiments of the present disclosure.
FIG. 5 is a flow chart illustrating a communication method of a virtual machine according to some embodiments of the present disclosure.
Description of the symbols:
100. electronic device with a detachable cover
110. Hard body
111. Processor with a memory having a plurality of memory cells
113. Storage medium
115. Input/output interface
120. Management program
121. Shared configuration database
123. Shared link
130. Virtual machine
140. Virtual machine
151. Virtual data link
153. Virtual control link
320. Script
321. Result parsing instruction
323. Function instructions
410. Script
411. Instructions
413. Feedback instruction
eth0, eth1 physical network interface
vif1_0, vif1_1, vif2_0, vif2_1 virtual network interfaces
Internet network
Intranet chat network
S210 to S240, S410 to S440, S510 to S580
Detailed Description
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. Specific examples of components and arrangements are described below to simplify the present disclosure. Of course, these examples are merely illustrative and are not intended to be limiting. For example, forming a first feature over or on a second feature in the description that follows may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features may be formed between the first and second features such that the first and second features may not be in direct contact. Additionally, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Referring to fig. 1, a schematic diagram of a plurality of virtual machines running on an electronic device 100 according to some embodiments of the present disclosure is shown. As shown in FIG. 1, the electronic device 100 includes Hardware (Hardware) 110. The hardware 110 comprises a processor 111, a storage medium 113, and an input/output interface 115. In one embodiment, a virtual machine architecture, such as Xen architecture, is configured on the electronic device 100 to implement the configuration of the virtual machine 130 and the virtual machine 140 on the electronic device 100.
The virtual machine 130 includes a physical network interface eth0 and a physical network interface eth1. The physical network interface eth0 and the physical network interface eth1 may be physical network interfaces of the actual configuration of the electronic device 100. The virtual machine 130 includes a virtual network interface vif1_0 and a virtual network interface vif1_1. The virtual machine 140 includes a virtual network interface vif2_0 and a virtual network interface vif2_1.
A virtual data link 151 (data plane) is established between the virtual network interface vif1_0 and the virtual network interface vif2_ 0. In one embodiment, the virtual machine 130 receives the streaming data through the physical network interface eth0 and/or the physical network interface eth1, and the streaming data is transmitted to the virtual machine 140 through the virtual data link 151, so as to play the streaming data on the virtual machine 140.
A virtual control link 153 (control plane) is established between the virtual network interface vif1_1 and the virtual network interface vif2_1. In one embodiment, the virtual network interface vif1_1 and the virtual network interface vif2_1 have different and fixed internet addresses (IP addresses) and medium access control addresses (MAC addresses), and the virtual control link 153 is dedicated to transmitting control data other than streaming data (e.g., multimedia streaming data). It should be noted that the present disclosure does not limit the number of virtual machines in the virtual machine architecture, nor the number of virtual network interfaces of the virtual machines. It is stated that each virtual machine must include a virtual network interface for establishing a virtual control link (control plane). The virtual network interface associated with the virtual control link cannot be directly modified by the user to modify the associated settings, nor is the user allowed to view the status of the virtual network interface. In one embodiment, the virtual network interface associated with the virtual control link is configured by a virtual machine operating system (virtual machine operating system) of the virtual machine architecture (e.g., internet address, MAC address, etc.).
As shown in fig. 1, a hypervisor 120 (hypervisor) is used to manage operations on the electronic device 110 related to virtual machines. The hypervisor 120 includes a shared configuration database 121 (e.g., xenStore). The shared configuration database 121 is used to store identification codes and/or a plurality of instructions (e.g., 32-byte word strings).
When the virtual machine 130 and the virtual machine 140 are initialized on the electronic device 100, the processor 111 randomly generates the identifiers of the virtual machine 130 and the virtual machine 140, respectively, and stores the identifiers in the shared configuration database 121. In one embodiment, the packet transmitted by the virtual machine 130 over the virtual control link 152 includes an identification code. Since the virtual machine 140 cannot recognize the unknown identifier in the packet, it queries the shared configuration database 121. If the shared configuration database 121 contains the identifier corresponding to the unknown identifier, the verification of the virtual machine 130 is completed.
Before sending the interrupt command, the virtual machine 130 writes the command string corresponding to the interrupt command into the shared configuration database 121. The virtual machine 130 can send an interrupt command to the virtual machine 140 via the shared link 123 (e.g., xenBus) to prompt the virtual machine 140 to read the shared configuration database 121 and vice versa. In one embodiment, the shared configuration database 121 stores the instruction string in a space with a fixed storage location and size (e.g., 32 bytes), so that the virtual machine 130 and the virtual machine 140 can directly read the instruction data after receiving the interrupt instruction.
Referring to fig. 2, a flow chart of a communication method of a virtual machine according to some embodiments of the present disclosure is shown. Please refer to fig. 1 and fig. 2 together. In step S210, the vm 130 sends an interrupt command to the vm 140 via the shared link 123. In one embodiment, the virtual machine 130 does not wait for the return result of the virtual machine 140 after sending the interrupt command, but continues to perform other tasks. In step S220, the virtual machine 140 reads the instruction string corresponding to the interrupt instruction from the shared configuration database 121. In step S230, the virtual machine 140 executes the instruction data to generate result data. In one embodiment, the VM 140 stores a script (script) that includes instructions for directing the return of result data. In step S240, the virtual machine 140 transmits the result data to the virtual machine 130 via the virtual control link 153 according to the command of the script.
Referring to fig. 3, a flow chart of executing the calling remote script in the virtual machine is shown. Virtual machines 130 and 140 perform complex tasks through their respective stored scripts. As shown in fig. 3, the virtual machine 130 stores a call remote script 310 (call remote script) and a script 320. Script 320 includes result parsing instructions 321 and function instructions 323. The virtual machine 140 stores the script 410. The script 410 includes instructions 411 and feedback instructions 413. In one embodiment, the virtual machine 130 executes the remote script 310 after receiving a triggering event (e.g., reconnecting a network line), such as an instruction to reset the network state of the virtual machine 140 (e.g., using dynamic host configuration protocol to reallocate internet addresses). Then, an interrupt command is sent to the virtual machine 140 via the shared link (step S210 in fig. 2). The virtual machine executes the script 410 according to the instruction data (e.g., step S220 of fig. 2).
In one embodiment, the last line of the script 410 includes a feedback command 413. The vm 140 executes the feedback command 413, transmits the result data to the vm 130 via the virtual control link, and allows the vm 130 to execute the script 320 via the interrupt command. The virtual machine 130 executes the result parsing instruction of the script 320 to determine whether the result data has an exception. In one embodiment, if the virtual machine 130 determines that the network status of the virtual machine 140 is abnormal (e.g., the virtual data link 151 in fig. 1 is disconnected, or the virtual network interface vif2_0 cannot obtain the internet address, etc.), the functional instruction 323 is executed to repair the network connection between the virtual machine 130 and the virtual machine 140.
Therefore, the requester sending the data request does not need to spend time waiting for the reply, so as to save the waiting resource and the resource used by the shared link 123, and achieve the synchronous communication between the virtual machines.
It should be noted that, in other embodiments, the calling roles of the virtual machines 130 and 140 in fig. 3 may be interchanged, and the present disclosure does not limit the calling relationship between the virtual machines 130 and 140.
Referring to fig. 4, a flow chart of a communication method of a virtual machine according to some embodiments of the present disclosure is shown. As shown in fig. 4, in step S410, a TCP connection, such as a TCP/UDP connection, is established between the vm 130 and the vm 140 on the virtual control link 153. In step S420, the user interface of the virtual machine 140 generates instruction data, such as a setting instruction for the virtual machine 130. In step S430, the configuration command is transmitted to the virtual machine 130 via the virtual control link. In step S440, the virtual machine 130 calls a corresponding instruction on the script according to the setting instruction to complete the relevant setting.
Referring to fig. 5, a flow chart of a communication method of a virtual machine according to some embodiments of the present disclosure is shown. As shown in fig. 5, in step S510, a tcp connection between the vm 130 and the vm 140 is established in the virtual control link 153. In step S520, the user interface of the virtual machine 140 generates command data, such as a command for querying the network status data. Then, a calling remote script stored in the script of the virtual machine 140 is executed (refer to the remote calling program executed by the virtual machine 130 in FIG. 3).
In step S530, a call instruction for calling the remote script is transmitted to the virtual machine 130. In step S540, the virtual machine 130 reads the specified script stored in the virtual machine 130 according to the call instruction. In one embodiment, the virtual machine 130 reads the script for gathering network status data and gathers multimedia data of network related status data and/or statistics. In step S550, the multimedia data is transmitted over the virtual control link. The multimedia data can be, but is not limited to, status data, statistics maps, etc. of the network. In step S560, the virtual machine 140 stores the multimedia data. In step S570, the multimedia data is displayed on the display of the virtual machine 140.
Since the user is not allowed to directly modify the related configuration of the virtual control link, the network interface is prevented from being closed by the user and the control data cannot be transmitted.
In an embodiment, the communication method of the above embodiment can also be implemented as a computer program and stored in a non-transitory computer readable recording medium, so that the computer or the electronic device executes the communication method of the virtual machine after reading the recording medium.
In one embodiment, the electronic device 100 of fig. 1 may be a multimedia network set-top box, the virtual machine 130 is configured to handle network communication tasks (e.g., home Gateway (HGW)), and the virtual machine 140 is configured to provide multimedia streaming tasks (e.g., over-the-top (OTT)). When the user does not watch the movie or the tv program, the virtual machine 140 can be selectively turned off, so that the electronic device 100 does not need to spend power on the virtual machine 140. Meanwhile, since the virtual machine 130 is not turned off, the user can still use the network communication function, such as connecting to the Internet or an Intranet through the electronic device 100.
In summary, the present disclosure discloses a communication method of virtual machines and an electronic device 100, when it is necessary to expand or modify functions used between the virtual machines, data exchange between the virtual machines can be achieved without modifying a hypervisor or a kernel in a virtual machine architecture, but editing a script on the virtual machines. Therefore, the synchronous mechanism of data exchange between the virtual machines can be realized without generating a new interrupt instruction.
Claims (7)
1. A communication method of a virtual machine is applicable to a virtual machine architecture, wherein the communication method of the virtual machine comprises the following steps:
transmitting an interrupt command to a second virtual machine through a shared link by a first virtual machine;
reading a command data corresponding to the interrupt command in a shared configuration database by the second virtual machine; and
executing the instruction data by the second virtual machine, transmitting a result data to the first virtual machine through a virtual control link, exchanging data between the first virtual machine and the second virtual machine through the virtual control link,
the communication method of the virtual machine further comprises the following steps:
generating an identification code of the first virtual machine when the first virtual machine is initialized, and storing the identification code in the shared configuration database,
querying the shared configuration database to verify an unknown identity when the second virtual machine receives a packet containing the unknown identity, an
When the unknown identification code is determined to be in accordance with the identification code, the second virtual machine completes the verification of the first virtual machine,
wherein executing the instruction data by the second virtual machine further comprises:
generating a setting command of the command data through a user interface of the second virtual machine;
transmitting the configuration command to the first virtual machine through the virtual control link,
completing a function setting of the first virtual machine by the first virtual machine according to the setting instruction,
when the command data read by the second virtual machine contains a remote call script, a call command of the remote call script is transmitted to the first virtual machine,
executing a corresponding script by the first virtual machine according to the call instruction,
executing the instruction of the corresponding script by the first virtual machine to generate a multimedia data, an
Transmitting the multimedia data to the second virtual machine through the virtual control link according to a feedback command of the corresponding script, so as to display the multimedia data on a display of the second virtual machine.
2. The communication method of the virtual machine according to claim 1, wherein:
transmitting the result data through the virtual control link between a first virtual network interface of the first virtual machine and a first virtual network interface of the second virtual machine; and
transmitting a streaming data to the second virtual machine through a virtual data link between a second virtual network interface of the first virtual machine and a second virtual network interface of the second virtual machine, so as to play the streaming data on a display connected with the second virtual machine.
3. The communication method of the virtual machine according to claim 1, further comprising:
after the interrupt command is transmitted through the virtual control link, the first virtual machine stops waiting for the response of the second virtual machine;
wherein executing the instruction data by the second virtual machine further comprises calling a corresponding script of the instruction data by the second virtual machine to execute the corresponding script to generate the result data; and
the result data is transmitted to the first virtual machine via the virtual control link.
4. An electronic device, comprising:
a storage medium storing a plurality of program instructions; and
a processor coupled to the storage medium, the processor executing the plurality of program instructions to execute a plurality of operations of a first virtual machine and a second virtual machine in a virtual machine architecture, wherein the plurality of operations executed by the processor include:
the first virtual machine sending an interrupt command to the second virtual machine over a shared link;
the second virtual machine reads a command data corresponding to the interrupt command from a shared configuration database; and
the second virtual machine executes the instruction data, transmits a result data to the first virtual machine through a virtual control link, and exchanges data between the first virtual machine and the second virtual machine through the virtual control link,
wherein an identifier of the first virtual machine is generated upon initialization of the first virtual machine, and the identifier is stored in the shared configuration database, wherein the shared configuration database is queried to verify an unknown identifier when the second virtual machine receives a packet containing the unknown identifier, and the second virtual machine completes the verification of the first virtual machine when it is determined that the unknown identifier matches the identifier,
wherein a user interface of the second virtual machine generates a setting command of the command data, and transmits the setting command to the first virtual machine through the virtual control link, and the first virtual machine completes a function setting in the first virtual machine according to the setting command,
wherein when the instruction data read by the second virtual machine contains a remote call script, a call instruction of the remote call script is transmitted to the first virtual machine, so that the first virtual machine executes a corresponding script according to the call instruction,
the first virtual machine executes the instruction of the corresponding script to generate multimedia data, and the first virtual machine transmits the multimedia data to the second virtual machine through the virtual control link according to a feedback instruction of the corresponding script so as to display the multimedia data on a display of the second virtual machine.
5. The electronic device of claim 4, wherein the virtual control link is established between a first virtual network interface of the first virtual machine and a first virtual network interface of the second virtual machine, the virtual control link is used to transmit the result data, a virtual data link is established between a second virtual network interface of the first virtual machine and a second virtual network interface of the second virtual machine, wherein the first virtual machine transmits a streaming data to the second virtual machine through the virtual data link, so that a display connected to the second virtual machine plays the streaming data.
6. The electronic device of claim 4, wherein the first VM stops waiting for a response from the second VM after the first VM sends the interrupt command over the virtual control link;
wherein the second virtual machine calls a corresponding script of the instruction data to execute the corresponding script to generate the result data, and the second virtual machine transmits the result data to the first virtual machine through the virtual control link.
7. A non-transitory computer readable recording medium storing a plurality of program codes, wherein when the program codes are loaded into a processor, the processor executes the program codes to execute a virtual machine architecture and performs the following steps:
transmitting an interrupt command to a second virtual machine through a shared link by a first virtual machine;
reading a command data corresponding to the interrupt command from a shared configuration database by the second virtual machine according to the interrupt command; and
executing the instruction data by the second virtual machine, transmitting a result data to the first virtual machine through a virtual control link, exchanging data between the first virtual machine and the second virtual machine through the virtual control link,
generating an identification code of the first virtual machine when the first virtual machine is initialized, and storing the identification code in the shared configuration database,
when the second virtual machine receives a packet containing an unknown identity, querying the shared configuration database to verify the unknown identity, an
When the unknown identification code is determined to be in accordance with the identification code, the verification of the first virtual machine is completed on the second virtual machine,
wherein executing the instruction data by the second virtual machine further comprises:
generating a setting command of the command data through a user interface of the second virtual machine;
transmitting the configuration command to the first virtual machine through the virtual control link,
completing a function setting of the first virtual machine by the first virtual machine according to the setting instruction,
when the command data read by the second virtual machine includes a remote call script, a call command of the remote call script is transmitted to the first virtual machine,
executing a corresponding script by the first virtual machine according to the calling instruction,
executing the instruction of the corresponding script by the first virtual machine to generate a multimedia data, an
Transmitting the multimedia data to the second virtual machine through the virtual control link according to a feedback command of the corresponding script, so as to display the multimedia data on a display of the second virtual machine.
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