CN103593246B - Communication means, host and dummy machine system between virtual machine and host - Google Patents
Communication means, host and dummy machine system between virtual machine and host Download PDFInfo
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Abstract
The invention discloses the communication means between a kind of virtual machine and host, host and dummy machine system, the port communication device in host is virtual machine distribution port file, and port communication device starts the service of host port communication.The service of host port communication being capable of reading-writing port file, and monitoring port file.Virtual machine carries out data interaction by reading-writing port file and host.Communication means disclosed by the invention, host and dummy machine system, increase a port communicator port communication module in other words conj.or perhaps inside host, realize the communication between virtual machine and host, it is written and read by an encryption file on host, may be implemented in virtual machine is not having TCP/IP networks, or communicated with host in the case of wall port contract fully, and then realize the communication in virtual machine outside application program and virtualized environment between application program.
Description
Technical field
The present invention relates to the communication party between virtual machine applied technical field, more particularly to a kind of virtual machine and host
Method, host and dummy machine system.
Background technology
Server virtualization refers to that multiple virtual machines (VM) are fictionalized on a physics host, between each virtual machine
It is mutually isolated, and can simultaneously run a kind of separate technology.It is only that one physics host is split into dozens of by the technology
Vertical virtual machine, each virtual function independent operating business, it is possible to achieve improve server resource utilization rate, improve the efficiency of management
Target.Used as the foundation class technology of cloud computing, server virtualization technology has obtained substantial amounts of application and popularization in recent years.Example
Such as, IDC（Internet Data Center：Internet data center）One physics host is invented 20 left sides by service provider
Right virtual machine, every virtual machine possesses independent operating system, network environment, then is leased to user, abundant by IDC
IT basic resources and high concentration, standardized operation management system to client provide data storage, data backup, data
The service such as exchange, client can be by the information system of renting the service of IDC to build itself.Can be with for IDC Service Provider
Increase health service revenue, for user, hiring cost can be reduced.
In traditional server virtualized environment, virtual machine and host are communicated by TCP/IP networks.Fig. 1 is existing
The schematic diagram of some dummy machine systems.One physics host 12 starts virtual machine process 122 and generates virtual machine 11, virtual machine 11
Possess independent operating system and the network equipment 112.The network equipment 112 and application program 121 are passed through by the network switch 13
TCP/I P agreements are communicated.There are following two drawbacks in this communication mode:
1st, cannot be communicated before virtual machine does not complete network configuration or enables network interface card;
2nd, virtual machine and host are managed by different administrative staff, and they can set up fire prevention in respective system
Wall rule, and do not know needs open port, to cause to be communicated between virtual machine and host each other.
The content of the invention
In view of this, the invention solves the problems that a technical problem be to provide a kind of communication between virtual machine and host
Method, data interaction is carried out between virtual machine and host by reading-writing port file.
A kind of communication means between virtual machine and host, the port communication device in host is virtual machine distribution end
Mouth file；The port communication device starts the service of host port communication；Wherein, the host port communication service can
The port file is read and write, and monitors the port file；The virtual machine is by reading and writing the port file with the host
Machine carries out data interaction.
According to one embodiment of communication means of the present invention, further, the virtual machine starts virtual generator terminal
Port communications are serviced；The virtual machine port communication service monitoring, the read-write port file.
According to one embodiment of communication means of the present invention, further, on the host set multiple empty
Plan machine；The port communication device distributes corresponding port file for each virtual machine, wherein, each port file and institute
State the socket port correspondence of host.
According to one embodiment of communication means of the present invention, further, user accesses the host
Socket port；The host port communication service receives the access to the socket port, and user profile is write
In port file corresponding with the socket port；The virtual machine reads institute from port file corresponding with this virtual machine
State user profile.
According to one embodiment of communication means of the present invention, further, the virtual machine is by result number
According in write-in port file corresponding with this virtual machine；The host port communication service obtains treatment knot from port file
Fruit data, and the socket port transmission processe result data for passing through host corresponding with port file.
According to one embodiment of communication means of the present invention, further, the port communication device starts one
Individual host port communication service；Or, the port communication module is that each virtual machine starts a host port communication
Service.
According to one embodiment of communication means of the present invention, further, the port file is encryption file；
Algorithm to port file encryption includes：DES, AES or 3DES.
The invention solves the problems that a technical problem be to provide a kind of host, entered by reading-writing port file and virtual machine
Row data interaction.
A kind of host, including：Port communication device, for distributing port file for virtual machine, and starts host's generator terminal
Port communications are serviced；Wherein, host port communication service can read and write the port file, and monitor the port text
Part；Virtual machine carries out data interaction by reading and writing the port file with the host.
According to one embodiment of host of the present invention, further, on the host set multiple virtual
Machine；The port communication device distributes corresponding port file for each virtual machine, wherein, each port file with it is described
One socket port correspondence of host.
According to one embodiment of host of the present invention, further, user accesses the host
Socket port；The host port communication service receives the access to the socket port, and user profile is write
In port file corresponding with the socket port；The virtual machine reads institute from port file corresponding with this virtual machine
State user profile；The virtual machine writes result data in port file corresponding with this virtual machine；The host
Port communication services and result data is obtained from port file, and by the socket of host corresponding with port file
Port transmission processe result data.
According to one embodiment of host of the present invention, further, the port communication device starts one
Host port communication is serviced；Or, the port communication module is that each virtual machine starts a host port communication clothes
Business；The virtual machine starts the service of virtual machine port communication；The virtual machine port communication service monitoring, the read-write port text
Part.
According to one embodiment of host of the present invention, further, the port file is encryption file, right
The algorithm of the port file encryption includes：DES, AES or 3DES.
The invention solves the problems that a technical problem be to provide a kind of dummy machine system, it is characterised in that including above-mentioned
Host.
Communication means, host and dummy machine system between virtual machine of the invention and host, inside host
Increase a port communicator port communication module in other words conj.or perhaps, realize the communication between virtual machine and host, it is not necessary to
The IP address of virtual machine is directly accessed, equivalent to employing a kind of paravirtualized pci bus mode.
Virtual machine and host are written and read by an encryption file on host, play an information transfer bridge
Effect, outside user can also access virtual machine, may be implemented in virtual machine and exist by accessing the scoket ports of host
Communicated with host in the case of there is no TCP/IP networks, or wall port contract fully, and then realize application in virtual machine
Communication outside program and virtualized environment between application program.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of dummy machine system in the prior art；
Fig. 2 is the flow chart of the one embodiment according to the communication means between virtual machine of the invention and host；
Fig. 3 is the schematic diagram of the one embodiment according to dummy machine system of the invention.
Specific embodiment
The present invention is described more fully with reference to the accompanying drawings, wherein illustrating exemplary embodiment of the invention.Under
Face will combine the accompanying drawing in the embodiment of the present invention, and the technical scheme in the embodiment of the present invention is clearly and completely described, and show
So, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all belongs to
In the scope of protection of the invention.Many descriptions are carried out to technical scheme with reference to each figure and embodiment.
Fig. 2 is the flow chart of the one embodiment according to the communication means between virtual machine of the invention and host.Such as
Shown in Fig. 2：
Step 202, the port communication device in host is virtual machine distribution port file.Port file is storage in place
File in main frame, the form of port file is the file format that host is supported, such as text formatting, XML format etc..
Step 203, port communication device starts the service of host port communication.
Wherein, host port communication service being capable of reading-writing port file, and monitoring port file；If port file is sent out
Changing, host port communication service will read this port file, obtain data.
Step 204, virtual machine reading-writing port file.Virtual machine carries out data friendship by reading-writing port file and host
Mutually.
According to one embodiment of present invention, host is an operating system in a PC server, one
As be linux transformation.Multiple virtual machine processes can be opened in the operating system, it is exactly one that each virtual machine process is opened after coming
Virtual machine.As the computer that the virtual machine is normally used with us is, there can be CPU, there is internal memory, there is hard disk, can install
Operating system, there is IP address.
According to one embodiment of present invention, port communication device starts the service of host port communication, that is, start host
Generator terminal port communications service processes or thread.Virtual machine starts the service of virtual machine port communication, that is, start virtual machine port communication clothes
Business process or thread.Virtual machine port communication service monitoring, reading-writing port file.Multiple virtual machines, port are set on host
Communicator distributes corresponding port file for each virtual machine, wherein, one of each port file and host
Socket port correspondence.Socket（Socket）Port is used for the phase intercommunication between two application programs based on ICP/IP protocol
Letter.According to one embodiment, multiple virtual machines can also share same port file.
User accesses the socket port of host, and host port communication service receives the visit to socket port
Ask, by user profile write-in port file corresponding with socket port, virtual machine is literary from port corresponding with this virtual machine
User profile is read in part.Virtual machine writes result data in port file corresponding with this virtual machine, host's generator terminal
Port communications service and result data are obtained from port file, and by the socket ends of host corresponding with port file
Mouth transmission processe result data.
According to one embodiment of present invention, port communication device starts a host port communication service.Or, end
Port communications module is that each virtual machine one host port communication of startup is serviced, each host port communication service monitoring,
The read-write port file corresponding with virtual machine.Port file is encryption file；Algorithm to port file encryption includes：DES、
AES or 3DES.DES（Data Encryption Standard）It is a kind of data encryption standards, DEA（Data Encryption
Algorithm：DEA）It is a kind of symmetric encipherment algorithm.3DES（Or be Triple DES）It is that triple data add
Close algorithm（TDEA, Triple Data Encryption Algorithm）Common name, be the equal of to each data block application
Three des encryption algorithms.AES（Advanced Encryption Standard：Advanced Encryption Standard）Also known as Rijndael plus
Close method, is a kind of block encryption standard.
The present invention by inside host increase a port communicator in other words conj.or perhaps port communication module, by it
To realize the communication between virtual machine and host, it is not necessary to the IP address of virtual machine is directly accessed, equivalent to employing one kind
Paravirtualized pci bus mode.It is written and read by an encryption file on host, plays an information transfer bridge
Effect, outside user can also access virtual machine by accessing the scoket ports of host.
Fig. 3 is the schematic diagram of the one embodiment according to dummy machine system of the invention.Host 32 includes port communication
Device 324.According to one embodiment, port communication device 324 can also be port communication module.Port communication device 324 is
Virtual machine distributes port file 323, and starts host port communication service.The service of host port communication being capable of reading-writing port
File 323, and monitoring port file 323.Virtual machine 31 carries out data interaction by reading-writing port file and host.
According to one embodiment of present invention, multiple virtual machines are set on host 32, and port communication device 324 is each
Virtual machine all distributes corresponding port file, and each port file is corresponding with a socket port of host.User visits
Ask the socket port of host 32；Host port communication service receives the access to socket port, by user profile
In write-in port file 323 corresponding with socket port.Virtual machine 31 is from port file 323 corresponding with this virtual machine 31
Read user profile.Virtual machine 31 writes result data in port file 323 corresponding with this virtual machine 31.Host
Port communication services and result data is obtained from port file 323, and by host corresponding with port file
Socket port transmission processe result data.
According to one embodiment of present invention, this is accessed by accessing the IP address and a particular port of host 32
Virtual machine 31.Even if the network interface card of virtual machine 31 is fitted without, or ip addresses are configured without, it is also possible to accessed.For example, host
Machine 32 is a PC server host1, the server virtualization software of KVM installed above, and being configured with an IP address is
192.168.1.10.Then it has been mounted with virtual machine many on this host, has been respectively configured IP address, virtual machine 31：
192.168.1.20 etc..
Under traditional mode, user will login virtual machine 31, it is necessary to open remote desktop, then go to access
192.168.1.20.Once virtual machine 31 is configured without IP address, or IP address conflicts with others.User cannot just login void
Plan machine 31 goes to configuration of IP address again, it is necessary to keeper logins virtual machine in management platform, and user could access.So, manage
Reason person is accomplished by possessing keeper's account of the virtual machine of the vm1 of user.
Port communication device 324 distributes corresponding port file 323, port file 323 and host 32 for virtual machine 31
Port 5901 it is corresponding.According to one embodiment, port file 323 can be distributed when virtual machine process 322 is started, also may be used
To configure in advance.User will login virtual machine 31, and host1 is accessed by the network switch 33:192.168.1.10:5901.Prison
The host port communication service for controlling this port file 323 receives access to socket port 5901, and user profile is write
In entering port file 323 corresponding with socket port.
According to one embodiment, the application program 321 in host 32 receives the outside access to port, notifies host
The content and port information of generator terminal port communications service outside access.The service of host port communication is literary by user profile write-in port
In part 323.
Virtual machine port communication service in virtual machine 31 obtains port file 323 and changes, and obtains user profile
Notify application program 311.Result data are write port file by application program 311 by the service of virtual machine port communication
In 323.Refer generally in operating system, application program cannot directly invoke equipment, it is necessary to be adjusted by device drives 312
With.Device drives 312 provide the call method and calling interface of the equipment.Application program 311 or virtual machine port communication are serviced
The method and interface for performing device drives 312 can drive the equipment.For example, device drives 312 include following call method：Beat
Open, reading and writing, close file.
Host port communication services and result data is obtained from port file 323, and is sent by 5901 ports
Result data.Result data return to user by the network switch 33.
The present invention is that may be implemented in virtual machine not have TCP/IP networks, or wall port contract fully by the method
In the case of and host communication, and then realize logical between application program outside application program and virtualized environment in virtual machine
News.
The method of the present invention and system may be achieved in many ways.For example, can by software, hardware, firmware or
Software, hardware, any combinations of firmware realize the method for the present invention and system.The said sequence of the step of for method is only
Order described in detail above is not limited in order to illustrate, the step of the method for the present invention, is especially said unless otherwise
It is bright.Additionally, in certain embodiments, also the present invention can be embodied as recording program in the recording medium, these programs include
Machine readable instructions for realizing the method according to the invention.Thus, the present invention also covering storage is for performing according to this hair
The recording medium of the program of bright method.
Description of the invention is given for the sake of example and description, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are for the ordinary skill in the art obvious.Select and retouch
State embodiment and be to more preferably illustrate principle of the invention and practical application, and one of ordinary skill in the art is managed
The solution present invention is suitable to the various embodiments with various modifications of special-purpose so as to design.
Claims (13)
1. the communication means between a kind of virtual machine and host, it is characterised in that：
Port communication device in host is virtual machine distribution port file；
The port communication device starts the service of host port communication；Wherein, host port communication service can read
The port file is write, and monitors the port file；
The virtual machine carries out data interaction by reading and writing the port file with the host.
2. communication means as claimed in claim 1, it is characterised in that：
The virtual machine starts the service of virtual machine port communication；
The virtual machine port communication service monitoring, the read-write port file.
3. communication means as claimed in claim 1, it is characterised in that：
Multiple virtual machines are set on the host；
The port communication device distributes corresponding port file for each virtual machine, wherein, each port file and institute
State the socket port correspondence of host.
4. communication means as claimed in claim 3, it is characterised in that：
User accesses the socket port of the host；
The host port communication service receives the access to the socket port, by user profile write-in with it is described
In the corresponding port file of socket port；
The virtual machine reads the user profile from port file corresponding with this virtual machine.
5. communication means as claimed in claim 4, it is characterised in that：
The virtual machine writes result data in port file corresponding with this virtual machine；
The host port communication service obtains result data from port file, and by corresponding with port file
The socket port transmission processe result data of host.
6. communication means as claimed in claim 4, it is characterised in that：
The port communication device starts a host port communication service；Or, the port communication device is empty for each
Plan machine starts a host port communication service.
7. communication means as claimed in claim 1, it is characterised in that：
The port file is encryption file；
Algorithm to port file encryption includes：DES, AES or 3DES.
8. a kind of host, it is characterised in that including：
Port communication device, for distributing port file for virtual machine, and starts host port communication service；
Wherein, host port communication service can read and write the port file, and monitor the port file；Virtual machine
By reading and writing the port file data interaction is carried out with the host.
9. host as claimed in claim 8, it is characterised in that：
Multiple virtual machines are set on the host；
The port communication device distributes corresponding port file for each virtual machine, wherein, each port file and institute
State the socket port correspondence of host.
10. host as claimed in claim 9, it is characterised in that：
User accesses the socket port of the host；
The host port communication service receives the access to the socket port, by user profile write-in with it is described
In the corresponding port file of socket port；
The virtual machine reads the user profile from port file corresponding with this virtual machine；
The virtual machine writes result data in port file corresponding with this virtual machine；
The host port communication service obtains result data from port file, and by corresponding with port file
The socket port transmission processe result data of host.
11. hosts as claimed in claim 10, it is characterised in that：
The port communication device starts a host port communication service；Or, the port communication device is empty for each
Plan machine starts a host port communication service；
The virtual machine starts the service of virtual machine port communication；The virtual machine port communication service monitoring, the read-write port
File.
12. hosts as claimed in claim 8, it is characterised in that：
The port file is encryption file, and the algorithm to port file encryption includes：DES, AES or 3DES.
13. a kind of dummy machine systems, it is characterised in that including the host as described in claim 8 to 12 any one.
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| CN201210289780.7A CN103593246B (en) | 2012-08-15 | 2012-08-15 | Communication means, host and dummy machine system between virtual machine and host |
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