JP2019164661A - Information processing device, information processing method and program - Google Patents

Abstract

To provide an information processing device, an information processing method and a program capable of reducing an overhead of communication by control processing of each communication hierarchy by performing communication with memory access without using an NW communication protocol in the case of performing communication among virtual machines on the same host machine.SOLUTION: An information processing device 1 has a control part including a memory control part and a communication control part. The memory control part associates a virtual first storage area secured on a memory of the information processing device in each of a plurality of virtual machines with a second storage area for communication secured in each of a first virtual machine for transmitting transmission data including identification data for specifying a plurality of data contents and a second virtual machine for receiving the transmission data in a plurality of virtual machines mounted on the same information processing device to mutually communicate. The communication control part controls communication between the first virtual machine and the second virtual machine.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information processing apparatus, an information processing method, and a program.

  In an information device such as a computer, a virtual machine is used when a plurality of computers and an OS (Operating System) are operated on one computer or when software for another architecture is operated. An information device (hereinafter referred to as “host machine”) on which a virtual machine runs moves the virtual machine using a RAM (Random Access Memory) or the like.

  The virtual machine can communicate with other virtual machines and computers. When a plurality of virtual machines exist on the host machine, the virtual machine can communicate with other virtual machines. However, even between virtual machines on the same host machine, communication between virtual machines is a communication protocol for network communication such as TCP / IP (Transmission Control Protocol / Internet Protocol) (hereinafter referred to as “NW communication protocol”). .) Must be used.

  When a communication method according to the NW communication protocol is used, communication is performed through a process of adding data for control to communication data, and the capacity of the communication data increases. This is because data for controlling communication in each layer is given based on the data communication model of the NW communication protocol. For this reason, the communication method according to the NW communication protocol passes through a plurality of processing layers when communicating between virtual machines on the same host machine, resulting in poor communication efficiency and an increase in communication processing overhead.

  Also, I / O (Input / Output) processing for network communication has a lower processing priority than other I / O processing. For this reason, when the I / O load of the system becomes high, the I / O performance for network communication tends to deteriorate. This may increase communication processing overhead.

  From the above, communication between virtual machines requires communication to be executed using the NW communication protocol even if the virtual machines are on the same host machine, resulting in processing overhead. There was a problem.

  As a countermeasure for overhead in communication processing between virtual machines, Document 1 discloses a technique that uses a memory that can be shared between virtual machines by reducing the communication hierarchy in network communication between virtual machines. Specifically, Document 1 discloses a method of communicating using a shared memory because the same memory (hereinafter referred to as “shared memory”) can be used between virtual machines.

  Further, Document 2 discloses a technique for performing communication via a communication channel defined in a virtual machine as a countermeasure for overhead in communication processing between virtual machines. Specifically, Document 2 provides a communication channel as a communication mechanism between virtual machines. The virtual machine disclosed in Document 2 discloses a technique for performing communication between virtual machines using the communication channel.

Japanese Patent Laying-Open No. 2015-170887 International Publication No. 2010/064411

  As described above, in the documents 1 and 2, when performing communication between virtual machines on the same host machine, an attempt is made using the NW communication protocol. However, in the above method, the network NW communication protocol is used in spite of the communication between virtual machines on the same host machine, so the communication overhead due to the control processing of each communication layer cannot be reduced. was there. The control process of each communication layer is a process of adding control data corresponding to the protocol layer to the contents data (hereinafter referred to as “actual data”) used for communication.

  Therefore, an object of the present invention is to provide an information processing apparatus, an information processing method, and a program that solve the above-described problems.

  According to the first aspect of the present invention, an information processing device is secured in a memory of the information processing device for each of the plurality of virtual machines in a plurality of virtual machines that are mounted on the same information processing device and communicate with each other. Communication secured in each of the virtual first storage area and the first virtual machine that transmits transmission data including identification data for specifying the data content and the second virtual machine that receives the transmission data A second memory area, a memory control unit for associating, and a communication control unit for controlling communication between the first virtual machine and the second virtual machine, the first virtual machine, The transmission data is written to the first storage area associated with the second storage area of the first virtual machine, and the second virtual machine is associated with the second storage area of the second virtual machine. And the first storage area, writes the received instruction for receiving the transmission data, the communication control unit, based on the received instruction and transmits the transmission data to the second virtual machine.

  According to the second aspect of the present invention, in the information processing method, in the plurality of virtual machines in which one or a plurality of computers are mounted on the same information processing apparatus and communicate with each other, the information for each of the plurality of virtual machines Each of a virtual first storage area secured on a memory of a processing device, a first virtual machine that transmits transmission data including identification data for specifying data contents, and a second virtual machine that receives the transmission data A memory control step for associating the second storage area for communication secured in the first virtual machine, and the first storage area in which the first virtual machine is associated with the second storage area of the first virtual machine And writing the transmission data to the first storage area associated with the second storage area of the second virtual machine. And writing the received instructions for receiving, based on the received instruction, and a step of transmitting the transmission data to the second virtual machine.

  According to the third aspect of the present invention, the program is installed in one or a plurality of computers on the same information processing apparatus and communicates with each other in the plurality of virtual machines. Each of the virtual first storage area secured in the memory, the first virtual machine that transmits transmission data including identification data for specifying the data contents, and the second virtual machine that receives the transmission data A memory control unit for associating with the second storage area for communication secured in step (b), and a communication control unit for controlling communication between the first virtual machine and the second virtual machine. The virtual machine writes the transmission data to the first storage area associated with the second storage area of the first virtual machine, and the second virtual machine is in front of the second virtual machine. A reception instruction for receiving the transmission data is written in the first storage area associated with the second storage area, and the communication control unit transfers the transmission data to the second virtual area based on the reception instruction. It functions as an information processing device that transmits to a machine.

  According to at least one of the above aspects, the virtual machine performs communication using the virtual communication memory of the host machine. As a result, when communication is performed between virtual machines on the same host machine, communication is performed by memory access without using the NW communication protocol, so that communication overhead due to control processing of each communication layer can be reduced. can get.

It is a figure which shows the hardware constitutions of the information processing apparatus 1 which concerns on one Embodiment of this invention. It is a schematic block diagram which shows the software structure of the control part 100 which concerns on one Embodiment of this invention. It is a data table which shows an example of the command and destination information which concern on one Embodiment of this invention. It is a data table which shows an example of the address of the memory for communication which concerns on one Embodiment of this invention. It is a data table which shows an example of the logical block address of the memory for communication of the virtual machine which concerns on one Embodiment of this invention, and the memory driver for communication. It is a data table which shows an example of the identification data which the memory for communication concerning one Embodiment of this invention manages. It is a flowchart which shows the flow of the process which sets the memory for communication of the virtual machine which concerns on one Embodiment of this invention. FIG. 9 is a sequence diagram showing a flow of initial setting processing in communication between virtual machines according to an embodiment of the present invention. It is a sequence diagram which shows the flow of a process in the case of performing a transmission process previously in communication between the virtual machines which concerns on one Embodiment of this invention. It is a sequence diagram which shows the flow of a process in the case of receiving previously in communication between the virtual machines which concerns on one Embodiment of this invention. It is a figure which shows an example of the protocol hierarchy of the virtual machine which concerns on one Embodiment of this invention. It is a figure which shows the minimum structure of the information processing apparatus 1 by this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a hardware configuration of an information processing apparatus 1 according to an embodiment of the present invention.
The information processing apparatus 1 includes a control unit 100, a system memory 200, a communication memory driver 300, a virtual communication memory 400, a first virtual machine 500, and a second virtual machine 600.

  Note that the virtual machine in the present embodiment may be a host type or a hypervisor type. In other words, as long as the virtual machines operate on the same host machine, the virtual machine operation method and the number of operations are not limited. In the following embodiment, as an example, it is assumed that two host type virtual machines are operated on a host machine.

The control unit 100 is configured using a processor such as a CPU (Central Processing Unit). The control unit 100 expands the program in the main memory, and executes processing according to the program when the processor executes the program. In the present embodiment, the control unit 100 functions as the control unit illustrated in FIG. 2 by executing a program.
The system memory 200 includes a communication memory storage unit 210 and a communication data storage unit 220. System memory 200 is an aspect of a storage unit.

The communication memory storage unit 210 stores in advance data tables shown in FIGS. Further, the communication memory storage unit 210 receives processing commands (hereinafter referred to as “instruction data”), information such as identification IDs and communication IDs (hereinafter referred to as “identification data”) received from the data registration unit 130. These are stored in a data table described later in FIG.
The communication data storage unit 220 stores actual data communicated between the first virtual machine 500 and the second virtual machine 600.

  The communication memory driver 300 generates the virtual communication memory 400. The control unit 100 executes program processing using the function of the communication memory driver 300.

The virtual communication memory 400 includes a first virtual memory 410 and a second virtual memory 420. The format of the first virtual memory 410 and the second virtual memory 420 may be any format as long as it can be used in a virtual machine such as VHDX or VHD. The first virtual memory 410 and the second virtual memory 420 are one mode of the first storage area.
The first virtual memory 410 and the second virtual memory 420 are handled in association with the first communication memory 520 and the second communication memory 620.

The first virtual machine 500 includes a first application 510 and a first communication memory 520.
When the first virtual machine 500 transmits / receives data to / from the second virtual machine 600, the first application 510 notifies the communication memory driver 300 of a transmission / reception command through the first communication memory 520.

  The first communication memory 520 notifies the communication memory driver 300 of the transmission / reception command notified from the first application 510 to perform communication. The first communication memory 520 is associated with an address with the first virtual memory 410 by the memory control unit 110 described later. The first communication memory 520 is an aspect of the second storage area.

The second virtual machine 600 includes a second application 610 and a second communication memory 620.
When the second virtual machine 600 transmits / receives data to / from the first virtual machine 500, the second application 610 notifies the communication memory driver 300 of a transmission / reception command through the second communication memory 620.

  The second communication memory 620 notifies the communication memory driver 300 of the transmission / reception command notified from the second application 610 to perform communication. The second virtual memory 420 is associated with the second communication memory 620 by the memory control unit 110 described later. The second communication memory 620 is an aspect of the second storage area.

  The system memory 200 and the communication memory driver 300 are examples of storage devices, and the virtual communication memory 400 is an example of a virtual storage device.

FIG. 2 is a schematic block diagram showing a software configuration of the control unit 100 according to the embodiment of the present invention.
The control unit 100 functions as a memory control unit 110, a data determination unit 120, a data registration unit 130, and a communication control unit 140 by executing a program.

  The memory control unit 110 configures a virtual communication memory (hereinafter referred to as “virtual communication memory 400”) for communicating with a virtual machine. First, the memory control unit 110 secures a storage area from the main memory and generates the virtual communication memory 400 that is accessed by the communication memory driver 300. The memory control unit 110 generates a first virtual memory 410 and a second virtual memory 420 in the virtual communication memory 400. Next, the memory control unit 110 associates the first virtual memory 410 and the second virtual memory 420 with the first communication memory 520 and the second communication memory 620.

  Accordingly, when the first virtual machine 500 and the second virtual machine 600 communicate using the first communication memory 520 and the second communication memory 620, the memory control unit performs the first communication memory 520 and the second communication machine 520. The second communication memory 620 accesses the virtual communication memory 400.

  In the present embodiment, since communication between two virtual machines is assumed, the number of virtual memories in the virtual communication memory 400 is two. When communication between three or more virtual machines is assumed, virtual memory needs to be generated according to the number of virtual machines. As in the case of communication between two virtual machines, the memory control unit 110 associates the generated virtual memory with the communication memory of the virtual machine on a one-to-one basis.

  If the OS of the information processing apparatus 1 is Windows (registered trademark), the data determination unit 120 receives an input / output request packet (IRP: I / O Request Packet) when a process accesses a file. publish. The data determination unit 120 determines actual data and identification data based on the information of the input / output request packet received from the process. The information of the input / output request packet includes a logical block address LBA (Logical Block Addressing) corresponding to the address of the communication memory, and the data determination unit 120 uses the LBA as the identification ID of the issuer of the transmission request and the reception request. use. Then, the data determination unit 120 sends the data acquired based on the determination result to the data registration unit 130.

  The data registration unit 130 registers the data received from the data determination unit 120 in the system memory 200. In the present embodiment, as an example, the data registration unit 130 registers the identification ID, communication ID, saved data flag, and data saved address received from the data determining unit 120 in the communication memory storage unit 210.

  Based on the processing result of the communication control unit 140, the data registration unit 130 receives data representing a state in which the virtual machine is controlled (hereinafter referred to as “state information”) from the communication control unit 140, and the communication memory storage unit Register at 210. The data registration unit 130 registers actual data received from the data determination unit 120 in the communication data storage unit 220.

  The communication control unit 140 controls communication between a plurality of virtual machines. The communication control unit 140 controls data communication of the virtual machine based on a data table shown in FIG. Specifically, the communication control unit 140 controls communication between virtual machines based on identification data such as an input / output request packet issued by the OS.

  For example, when there is an initialization request from the first application 510, the communication control unit 140 refers to the data table of FIG. 6, and the instruction data is “INIT_W” for initial setting for writing and the identification ID is “LBA_AP1_W”. Confirm that the transmission source is “AP1”. Then, the communication control unit 140 performs initial setting for writing of the first application 510.

  The control performed by the communication control unit 140 will be described with reference to the sequence diagrams of FIGS. Further, the communication control unit 140 sends the state information to the data registration unit 130 based on the process in which the control process is performed.

FIG. 3 is a data table showing an example of command and destination information according to an embodiment of the present invention.
The communication memory storage unit 210 stores in advance instruction data for performing initial setting for writing, instruction data for performing initial setting for reading, and instruction data for performing transmission. In addition, destination information indicating a destination to communicate with and a transmission source is also stored.

  In FIG. 3, as an example, “INIT_W”, “INIT_R”, and “TX” are stored in the item of instruction data, and “AP1” and “AP2” are stored in the item of destination information. FIG. 3 is an example of the data format of the present embodiment, and may be changed according to the communication method to be used.

FIG. 4 is a data table showing an example of addresses of the communication memory according to the embodiment of the present invention.
The communication memory storage unit 210 stores in advance the transmission address and the reception address of the communication memory of the virtual machine.

  In FIG. 4, as an example, “0xXXXXXXX1” is the transmission address item in the first communication memory 520, “0xYYYYYYY1” is the reception address item in the first communication memory 520, and the transmission address item is in the second communication memory 620. “0xXXXXXXX2” and “0xYYYYYYY2” are stored in the receiving address field of the second communication memory 620.

  FIG. 5 is a data table showing an example of logical block addresses of the communication memory and communication memory driver of the virtual machine according to the embodiment of the present invention. The logical block address is a method for designating an address indicating a data position in the storage device. The logical block address represents a block offset from the head of the block address space including the logical block.

  In FIG. 5, as an example, the transmission address and the reception address of the communication memory shown in FIG. 4 are used as the logical block addresses used for the I / O of the communication memory. The logical block address of the communication memory driver is, for example, “LBA_AP1_W” or “LBA_AP1_R” as the logical block address of the communication memory driver stored in association with the logical block address used for the I / O of the communication memory. “LBA_AP2_W” and “LBA_AP2_R” are set.

  FIG. 6 is a data table showing an example of identification data managed by the communication memory storage unit 210 according to an embodiment of the present invention. In this embodiment, the data table of identification data (hereinafter referred to as “management table”) managed by the communication memory storage unit 210 has an identification ID, a communication ID, status information, a storage data flag, and a data storage address.

In the data item of the identification ID, the logical block address of the memory driver for communication is registered. In FIG. 6, the logical block address is registered in association with the transmission / reception address of the communication memory in FIG.
The destination information is registered in the data item of the communication ID. In FIG. 6, the destination information is registered in association with the destination information of FIG.

  In the status data item, any one of the six status information items of “initial setting”, “idle”, “transmission request”, “waiting for transmission completion”, “waiting for reception”, and “waiting for reception completion” is registered. The The status data item is registered by the data registration unit 130 based on the processing of the communication control unit 140. Since there is no management information based on the identification ID before initial setting, it is represented as “initial state”.

  The data item of the saved data flag is registered by the data registration unit 130 based on whether the saved actual data exists. The type of the saved data flag is valid or invalid, and is valid when there is saved data, and invalid when there is no saved data.

In the data item of the data storage address, the data registration unit 130 registers the top address of the memory area (buffer) that temporarily stores the communication data when performing the initial setting.
Note that the storage data flag and the data storage address are not used when the identification ID is for transmission.

FIG. 7 is a flowchart showing a flow of processing for setting the communication memory of the virtual machine according to the embodiment of the present invention.
The memory control unit 110 secures a storage area from the main memory, and generates the virtual communication memory 400 that is accessed by the communication memory driver 300 (step S100).

The memory control unit 110 generates the same number of virtual memories (first virtual memory 410, second virtual memory 420,...) In the virtual communication memory 400 (step S101).
The memory control unit 110 associates the virtual memory generated in step S101 one-to-one with the communication memory of each virtual machine (step S102).

FIG. 8 is a sequence diagram showing a flow of initialization processing in communication between virtual machines according to an embodiment of the present invention.
A thread 1 that processes an input / output request packet from the first communication memory and a thread 2 that processes an input / output request packet from the second communication memory operate in a multi-thread manner.

  The first application 510 makes an initialization request (generates an input / output request packet for initial setting for writing) using the transmission address of the first communication memory 520 (step S200). In response to this initialization request, the data determination unit 120 receives information on the input / output request packet issued by the OS (instruction data: INIT_W, source: AP1, identification ID: LBA_AP1_W) (step S201).

  The data determination unit 120 determines identification data such as an identification ID included in the input / output request packet based on the information of the input / output request packet (step S202). Based on the determination result of the data determination unit 120, the data registration unit 130 registers the identification ID as “LBA_AP1_W” and the state as “initializing” in the management table stored in the communication memory storage unit 210 (step S203). ).

  The data registration unit 130 registers the identification data with the communication ID of the identification ID “LBA_AP1_W” as “AP1” in the management table (step S204). After storing the initial value, the data registration unit 130 registers the state of the identification ID “LBA_AP1_W” as “idle” in the management table (step S205). Then, the communication control unit 140 sends a notification of completion of the processing requested by the input / output request packet in step S201 to the first application 510 (step S206).

  The second application 610 uses the reception address of the second communication memory 620 to make an initialization request (read initial setting input / output request packet generation) (step S207). In response to this initialization request, the data determination unit 120 receives information on the input / output request packet issued by the OS (instruction data: INIT_R, source: AP2, identification ID: LBA_AP2_R) (step S208).

  The data determination unit 120 determines identification data such as an identification ID included in the input / output request packet based on the information of the input / output request packet (step S209). Based on the determination result of the data determination unit 120, the data registration unit 130 registers the identification ID as “LBA_AP2_R” and the state as “initially set” in the management table stored in the communication memory storage unit 210 (step S210). ).

  The data registration unit 130 registers the identification data in the management table with the communication ID of the identification ID “LBA_AP2_R” as “AP2”, the storage data flag as “invalid”, and the data storage address as “buffer address for LBA_AP2_R” (step S211). . After storing the initial value, the data registration unit 130 registers the state of the identification ID “LBA_AP2_R” as “idle” in the management table (step S212). Then, the communication control unit 140 sends a completion notification of the process requested by the input / output request packet in step S208 to the second application 610 (step S213).

FIG. 9 is a sequence diagram showing a flow of processing when performing transmission processing first in communication between virtual machines according to an embodiment of the present invention.
The first application 510 makes a transmission request (transmission request input / output request packet generation) using the transmission address of the first communication memory 520 (step S300). With this transmission request, the data determination unit 120 receives information (input ID: LBA_AP1_W, instruction data: TX, source: AP1, destination: AP2) of the input / output request packet issued by the OS (step S301).

  The data determination unit 120 determines identification data such as an identification ID included in the input / output request packet based on the information of the input / output request packet (step S302). Based on the determination result of the data determination unit 120, the data registration unit 130 registers the state of the identification ID “LBA_AP1_W” as “transmission requested” in the management table (step S303). Furthermore, the data determination unit 120 notifies the data registration unit 130 that the state of “LBA_AP2_R” is “idling” based on the determination result. The data registration unit 130 stores the actual data in the buffer address for “LBA_AP2_R” in the communication data storage unit 220, and sets the data storage flag of the identification ID “LBA_AP2_R” to “valid” (step S304).

  The data registration unit 130 registers the state of the identification ID “LBA_AP1_W” as “waiting for transmission completion” in the management table (step S305).

  The second application 610 makes a reception request (generates an input / output request packet for a reception request) using the reception address of the second communication memory 620 (step S306). In response to this reception request, the data determination unit 120 receives information (identification ID: LBA_AP2_R) of the input / output request packet issued by the OS (step S307).

  The data determination unit 120 determines identification data such as an identification ID included in the input / output request packet based on the information of the input / output request packet (step S308). Specifically, the data determination unit 120 refers to the data storage flag of the identification ID “LBA_AP2_R” and confirms whether there is stored actual data. The data registration unit 130 registers the state of the identification ID “LBA_AP2_R” in the management table as “receiving request in progress” (step S309).

  In the processing flow of FIG. 9, since the actual data is stored, the communication control unit 140 reads the actual data from the buffer address for “LBA_AP2_R” in the communication data storage unit 220, and the read actual data is addressed to AP2. The actual data is transferred to the second application 610 (step S310). The data registration unit 130 discards the actual data stored in the “LBA_AP2_R” buffer address of the communication data storage unit 220 and sets the data storage flag of the identification ID “LBA_AP2_R” to “invalid”.

  After the communication control unit 140 transfers the actual data to the second application 610, the data registration unit 130 registers the state of the identification ID “LBA_AP2_R” as “idle” in the management table (step S311). Then, the communication control unit 140 notifies the completion of the processing requested by the input / output request packet in step S307 (step S312).

  Further, the data registration unit 130 registers the state of the identification ID “LBA_AP1_W” as “idle” in the management table (step S313). Then, the communication control unit 140 notifies the completion of the processing requested by the input / output request packet in step S301 (step S314).

FIG. 10 is a sequence diagram showing a flow of processing when receiving is performed first in communication between virtual machines according to an embodiment of the present invention.
The second application 610 makes a reception request (generates an input / output request packet for a reception request) using the reception address of the second communication memory 620 (step S400). In response to this reception request, the data determination unit 120 receives information (identification ID: LBA_AP2_R) of the input / output request packet issued by the OS (step S401).

  The data determination unit 120 determines identification data such as an identification ID included in the input / output request packet based on the information of the input / output request packet (step S402). Specifically, the data determination unit 120 refers to the data storage flag of the identification ID “LBA_AP2_R” and confirms whether there is stored actual data. The data registration unit 130 registers the state of the identification ID “LBA_AP2_R” as “receiving request in progress” in the management table (step S403).

  In the processing flow of FIG. 10, since the actual data is not stored, the data registration unit 130 registers the state of the identification ID “LBA_AP2_R” as “waiting for reception completion” in the management table (step S404).

  The first application 510 makes a transmission request (generates an input / output request packet for a transmission request) using the transmission address of the first communication memory 520 (step S405). With this transmission request, the data determination unit 120 receives information on the input / output request packet issued by the OS (identification ID: LBA_AP1_W, instruction data: TX, source: AP1, destination: AP2) (step S406).

  The data determination unit 120 determines identification data such as an identification ID included in the input / output request packet based on the information of the input / output request packet (step S407). Based on the determination result of the data determination unit 120, the data registration unit 130 registers the state of the identification ID “LBA_AP1_W” as “transmission requested” in the management table (step S408). Further, the data determination unit 120 notifies the communication control unit 140 that the state of “LBA_AP2_R” is “waiting for reception completion” based on the determination result. Since the state of “LBA_AP2_R” is “waiting for reception completion”, the communication control unit 140 transfers the actual data to the second application 610 (step S409).

  After the communication control unit 140 transfers the actual data to the second application 610, the data registration unit 130 registers the state of the identification ID “LBA_AP2_R” as “idle” in the management table (step S410). Then, the communication control unit 140 notifies the completion of the processing requested by the input / output request packet in step S401 (step S411).

  Further, the data registration unit 130 registers the state of the identification ID “LBA_AP1_W” as “idle” in the management table (step S412). Then, the communication control unit 140 notifies the completion of the processing requested by the input / output request packet in step S406 (step S413).

[Modification]
Although this embodiment has been described using two virtual machines, the present embodiment can also be applied to communication between two or more N virtual machines as long as the virtual machines operate on the same host machine. Is possible.

  In the present embodiment, the virtual communication memory 400 is associated with it as a communication memory on the virtual machine, so that the virtual communication memory 400 is operated as a communication memory. In the modification, it is possible to change the operation method by previously registering a communication control code in the data table of the communication data format and referring to the communication control code.

FIG. 11 is a diagram showing an example of a protocol hierarchy of a virtual machine according to an embodiment of the present invention.
Communication between virtual machines using the NW communication protocol is performed via the application layer, the transport layer, the Internet layer, and the network interface layer based on the TCP / IP standard.

  The transmission-side virtual machine gives control data corresponding to each layer in addition to the actual data to be communicated. The receiving-side virtual machine removes the assigned data according to each layer and acquires only the actual data. In FIG. 11, as an example, a case where data is transmitted from the first virtual machine 500 to the second virtual machine 600 using the NW communication protocol will be described.

  When transmission processing is performed on real data transmitted from the first virtual machine 500, a TCP segment (TCP packet) is assigned as control data in each layer from the application layer to the network interface layer. Then, the data is transmitted to the second virtual machine 600 via the virtual machine management layer of the host machine.

  In the second virtual machine 600, the TCP segment corresponding to each layer from the network interface layer to the application layer is removed. Then, the second virtual machine receives actual data.

  When the above communication method is used, a process of using control data for communication between virtual machines occurs. In the present embodiment, since data is communicated by a memory access method without using the NW communication protocol, the overhead generated by the above communication method can be reduced.

FIG. 12 is a diagram illustrating a minimum configuration of the information processing apparatus 1 according to the present embodiment.
The information processing apparatus 1 according to the present embodiment may include at least the memory control unit 110 and the communication control unit 140.

  The memory control unit 110 configures a virtual communication memory for communicating with the virtual machine. First, the memory control unit 110 secures a storage area from the main memory and generates the virtual communication memory 400 that is accessed by the communication memory driver 300. Then, two virtual memories are generated in the virtual communication memory 400. That is, the memory control unit 110 generates the first virtual memory 410 and the second virtual memory 420. Next, the memory control unit 110 associates the first virtual memory 410 and the second virtual memory 420 with the first communication memory 520 and the second communication memory 620.

  The communication control unit 140 controls communication between a plurality of virtual machines. The communication control unit 140 controls data communication of the virtual machine based on the data table of FIG. Further, the communication control unit 140 registers the state information in the communication memory storage unit 210 based on the processing flow.

  As described above, in this embodiment, by having the memory control unit 110 and the communication control unit 140, communication processing overhead is reduced by not using the NW communication protocol in communication between virtual machines on the same host machine. be able to.

  The information processing apparatus described above has a computer system inside. In the case where communication is performed between a plurality of virtual machines operating on the same host machine, the process of reducing overhead is stored in a computer-readable recording medium in the form of a program. Is read and executed, the above processing is performed. Here, the computer-readable recording medium means a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.

  1 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed, thereby executing the BIOS exception. Sometimes OS processing may continue. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer system” includes a WWW system having a homepage providing environment (or display environment). The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

《Appendix》
A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Appendix 1)
In a plurality of virtual machines that are mounted on the same information processing apparatus and communicate with each other, a virtual first storage area secured in the memory of the information processing apparatus for each of the plurality of virtual machines and data contents are specified A memory control unit for associating a second storage area for communication secured in each of the first virtual machine that transmits the transmission data including the identification data and the second virtual machine that receives the transmission data;
A communication control unit for controlling communication between the first virtual machine and the second virtual machine,
The first virtual machine writes the transmission data to the first storage area associated with the second storage area of the first virtual machine,
The second virtual machine writes a reception instruction for receiving the transmission data in the first storage area associated with the second storage area of the second virtual machine,
The communication control unit transmits the transmission data to the second virtual machine based on the reception instruction.
Information processing device.

(Appendix 2)
Information included in the transmission data based on the identification data issued by the OS of the plurality of virtual machines and instruction data indicating the processing contents of the communication control unit issued by the first virtual machine The information processing apparatus according to attachment 1, further comprising a data determination unit that determines

(Appendix 3)
The information processing apparatus according to claim 2, wherein the communication control unit transmits the transmission data to the second virtual machine based on a determination result of the data determination unit.

(Appendix 4)
The data determination unit determines the identification data included in the transmission data, and outputs transmission destination information representing a transmission destination to the communication control unit as a determination result.
The information processing apparatus according to appendix 2 or 3, wherein the communication control unit causes the first virtual machine indicated by the transmission destination information to transmit transmission data based on an output result of the data determination unit.

(Appendix 5)
A storage unit for storing actual data indicating the content of data included in the transmission data and the identification data;
The information processing apparatus according to any one of appendices 2 to 4, further comprising: a data registration unit that registers the actual data and the identification data in the storage unit based on a determination result of the data determination unit.

(Appendix 6)
The data determination unit determines the identification data included in the transmission data, and outputs state information indicating communication states of the plurality of virtual machines to the communication control unit as a determination result,
The communication control unit outputs the state information to the data registration unit based on the output result of the data determination unit,
The information processing apparatus according to appendix 5, wherein the data registration unit registers the state information in the storage unit.

(Appendix 7)
The data determination unit determines the identification data included in the transmission data, and outputs stored data information indicating whether or not the actual data is held in the plurality of virtual machines to the communication control unit as a determination result And
The communication control unit outputs the stored data information to the data registration unit based on the output result of the data determination unit,
The information processing apparatus according to appendix 5 or 6, wherein the data registration unit registers the stored data information in the storage unit.

(Appendix 8)
The information processing apparatus according to claim 7, wherein the data registration unit registers the stored data information in association with an address of the actual data.

(Appendix 9)
In a plurality of virtual machines that are mounted on the same information processing apparatus and communicate with each other, a virtual first storage area secured in the memory of the information processing apparatus for each of the plurality of virtual machines and data contents are specified A memory control step for associating each of the first virtual machine for transmitting the transmission data including the identification data and the second storage area for communication reserved in the second virtual machine for receiving the transmission data;
The first virtual machine writing the transmission data to the first storage area associated with the second storage area of the first virtual machine;
The second virtual machine writing a reception instruction for receiving the transmission data in the first storage area associated with the second storage area of the second virtual machine;
Transmitting the transmission data to the second virtual machine based on the reception instruction;
An information processing method comprising:

(Appendix 10)
One or more computers,
In a plurality of virtual machines that are mounted on the same information processing apparatus and communicate with each other, a virtual first storage area secured in the memory of the information processing apparatus for each of the plurality of virtual machines and data contents are specified A memory control unit for associating a second storage area for communication secured in each of the first virtual machine that transmits the transmission data including the identification data and the second virtual machine that receives the transmission data;
A communication control unit for controlling communication between the first virtual machine and the second virtual machine,
The first virtual machine writes the transmission data to the first storage area associated with the second storage area of the first virtual machine,
The second virtual machine writes a reception instruction for receiving the transmission data in the first storage area associated with the second storage area of the second virtual machine,
The communication control unit is a program for functioning as an information processing device that transmits the transmission data to the second virtual machine based on the reception instruction.

DESCRIPTION OF SYMBOLS 1 ... Information processing apparatus 100 ... Control part 110 ... Memory control part 120 ... Data determination part 130 ... Data registration part 140 ... Communication control part 200 ... System memory 210 ... Communication memory storage unit 220: Communication data storage unit 300 ... Communication memory driver 400 ... Virtual communication memory 410 ... First virtual memory 420 ... Second virtual memory 500 ... First virtual machine 510 ... first application 520 ... first communication memory 600 ... second virtual machine 610 ... second application 620 ... second communication memory

Claims (10)

In a plurality of virtual machines that are mounted on the same information processing apparatus and communicate with each other, a virtual first storage area secured in the memory of the information processing apparatus for each of the plurality of virtual machines and data contents are specified A memory control unit for associating a second storage area for communication secured in each of the first virtual machine that transmits the transmission data including the identification data and the second virtual machine that receives the transmission data;
A communication control unit for controlling communication between the first virtual machine and the second virtual machine,
The first virtual machine writes the transmission data to the first storage area associated with the second storage area of the first virtual machine,
The second virtual machine writes a reception instruction for receiving the transmission data in the first storage area associated with the second storage area of the second virtual machine,
The communication control unit transmits the transmission data to the second virtual machine based on the reception instruction.
Information processing device. Information included in the transmission data based on the identification data issued by the OS of the plurality of virtual machines and instruction data indicating the processing contents of the communication control unit issued by the first virtual machine The information processing apparatus according to claim 1, further comprising: a data determination unit that determines The information processing apparatus according to claim 2, wherein the communication control unit transmits the transmission data to the second virtual machine based on a determination result of the data determination unit. The data determination unit determines the identification data included in the transmission data, and outputs transmission destination information representing a transmission destination to the communication control unit as a determination result.
The information processing apparatus according to claim 2, wherein the communication control unit causes the first virtual machine indicated by the transmission destination information to transmit transmission data based on an output result of the data determination unit. A storage unit for storing actual data indicating the content of data included in the transmission data and the identification data;
The information processing apparatus according to any one of claims 2 to 4, further comprising a data registration unit that registers the actual data and the identification data in the storage unit based on a determination result of the data determination unit. The data determination unit determines the identification data included in the transmission data, and outputs state information indicating communication states of the plurality of virtual machines to the communication control unit as a determination result,
The communication control unit outputs the state information to the data registration unit based on the output result of the data determination unit,
The information processing apparatus according to claim 5, wherein the data registration unit registers the state information in the storage unit. The data determination unit determines the identification data included in the transmission data, and outputs stored data information indicating whether or not the actual data is held in the plurality of virtual machines to the communication control unit as a determination result And
The communication control unit outputs the stored data information to the data registration unit based on the output result of the data determination unit,
The information processing apparatus according to claim 5, wherein the data registration unit registers the stored data information in the storage unit. The information processing apparatus according to claim 7, wherein the data registration unit registers the stored data information in association with an address of the actual data. In a plurality of virtual machines that are mounted on the same information processing apparatus and communicate with each other, a virtual first storage area secured in the memory of the information processing apparatus for each of the plurality of virtual machines and data contents are specified A memory control step for associating each of the first virtual machine for transmitting the transmission data including the identification data and the second storage area for communication reserved in the second virtual machine for receiving the transmission data;
The first virtual machine writing the transmission data to the first storage area associated with the second storage area of the first virtual machine;
The second virtual machine writing a reception instruction for receiving the transmission data in the first storage area associated with the second storage area of the second virtual machine;
Transmitting the transmission data to the second virtual machine based on the reception instruction;
An information processing method comprising: One or more computers,
In a plurality of virtual machines that are mounted on the same information processing apparatus and communicate with each other, a virtual first storage area secured in the memory of the information processing apparatus for each of the plurality of virtual machines and data contents are specified A memory control unit for associating a second storage area for communication secured in each of the first virtual machine that transmits the transmission data including the identification data and the second virtual machine that receives the transmission data;
A communication control unit for controlling communication between the first virtual machine and the second virtual machine,
The first virtual machine writes the transmission data to the first storage area associated with the second storage area of the first virtual machine,
The second virtual machine writes a reception instruction for receiving the transmission data in the first storage area associated with the second storage area of the second virtual machine,
The communication control unit is a program for functioning as an information processing device that transmits the transmission data to the second virtual machine based on the reception instruction.

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