CN103902322B - System switching method and electronic equipment - Google Patents

System switching method and electronic equipment Download PDF

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Publication number
CN103902322B
CN103902322B CN201210587130.0A CN201210587130A CN103902322B CN 103902322 B CN103902322 B CN 103902322B CN 201210587130 A CN201210587130 A CN 201210587130A CN 103902322 B CN103902322 B CN 103902322B
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operating
coprocessor
foregrounding
primary processor
memory cell
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CN103902322A (en
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章丹峰
靳玉茹
钟荣标
余俊峰
柯海滨
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Abstract

The invention discloses a kind of system switching method and the electronic equipment using the system switching method.System switching method is applied in electronic equipment, and electronic equipment includes coprocessor and primary processor, and electronic equipment is provided with the first operating system and second operating system different from the first operating system, and system switching method includes:When one of the first operating system and the second operating system are used as foregrounding system operation, in first operating system and the second operating system another be in the first resting state when, primary processor reception system switching command, foregrounding system is switched into the first resting state, wherein, the first resting state is for only coprocessor is working condition in electronic equipment;The operating state data of foregrounding system is saved in memory cell by coprocessor, and coprocessor guiding primary processor start, primary processor according to coprocessor guiding operation the first operating system and the second operating system in another as foregrounding system.

Description

System switching method and electronic equipment
Technical field
The present invention relates to electronic device field, more particularly it relates to a kind of system switching method and using this be The electronic equipment of system changing method.
Background technology
In recent years, such as the electronic equipment of mobile phone, panel computer and personal digital assistant is increasingly popularized, its Have the advantages that it is light, using simple touch control operation, it can easily realize surfing the Net, play game, see video, read magazine etc. Function.With the continuous enhancing of the hardware capability of electronic equipment, based on mixed architecture(Hybrid)Electronic equipment catch on. In a kind of electronic equipment based on mixed architecture, it has and is separately operableThe X86 systems and fortune of operating system OKThe ARM system of operating system, two systems have respective primary processor and memory, and two respectively System shares the shared equipment of mouse, keyboard, display etc..Additionally, also there is another electronics based on mixed architecture Equipment, two this electronic equipments have independent hardware system respectively(Primary processor, battery etc.), and be separately operable Respective operating system(Such asOperating system andOperating system), incited somebody to action when by cable or port When two electronic equipments are connected, its mixed electronic device systems of composition based on Hybrid frameworks.
Both the above Hybrid systems are referred to as double hard double soft(Two sets of hardware systems, two operating systems are separately operable two On set hardware system)System, it has the shortcomings that hardware cost is high, system design is complicated and the construction cycle is long.Have been proposed that It is a kind of hard double soft based on one(That is, there is a set of hardware system, two operating systems operate in a set of hardware system simultaneously On)The new Hybrid systems of framework.This one hard double soft Hybrid systems realize tradition with minimum hardware cost The various advantages of Hybrid systems.
Traditional Hybrid systems are based on ACPI(ACPI), realize S3 states by Bios so that The system of obtaining switches between resting state and working condition.However, the SoC of new Intel(System level chip)And MicrosoftThe S3 technologies of ACPI have been abandoned, the S0i3 states realized by coprocessor have been the substitute is.Therefore, it is right In the SoC's and Microsoft for utilizing new IntelFor the electronic installation of one hard double soft Hybrid systems, Need a kind of new system switching method badly.
The content of the invention
In view of the above, set the invention provides system switching method and using the electronics of the system switching method It is standby, according to the hard double soft Hybrid system switching methods that this law is bright, can realize more faster than based on traditional S3 states Switch speed.
According to one embodiment of present invention, there is provided a kind of system switching method, it is applied in an electronic equipment, it is described Electronic equipment includes coprocessor and primary processor, and the electronic equipment is provided with the first operating system and with described first The second different operating system of operating system, the system switching method includes:When first operating system and described second One of operating system as foregrounding system operation, another in first operating system and second operating system During in the first resting state, the primary processor reception system switching command switches to the foregrounding system described First resting state, wherein, first resting state be the electronic equipment in only described coprocessor be working condition;Institute State coprocessor and the operating state data of the foregrounding system is saved in memory cell, and coprocessor guiding The primary processor starts, and the primary processor runs the first operating system and the second operation according to the guiding of the coprocessor Another in system is used as foregrounding system.
Additionally, system switching method according to an embodiment of the invention, wherein first resting state is S0i3 State.
Additionally, system switching method according to an embodiment of the invention, wherein the coprocessor guides the master Processor starts, and the primary processor runs in the first operating system and the second operating system according to the guiding of the coprocessor Another include as foregrounding system:The coprocessor reads startup flag from the system switching command, The primary processor is guided to start the operating system started specified by flag as foregrounding system.
Additionally, system switching method according to an embodiment of the invention, wherein the memory cell includes the first son Be saved in for the operating state data of the foregrounding system and deposit by memory cell and the second sub- memory cell, the coprocessor Storage unit, and the coprocessor guides the primary processor to start, and the primary processor draws according to the coprocessor Lead operation the first operating system and the second operating system in another include as foregrounding system:The coprocessor will The operating state data of the foregrounding system is saved in the described first sub- memory cell, and the coprocessor guides the master Processor starts and runs another in the first operating system and the second operating system as foregrounding system, Yi Jisuo Coprocessor is stated by the operating state data from the described first sub- memory cell replicate to the described second sub- memory cell.
Additionally, system switching method according to an embodiment of the invention, wherein the first sub- memory cell is by quiet State random access memory is constituted, and the second sub- memory cell is made up of dynamic random access memory.
Additionally, system switching method according to an embodiment of the invention, wherein the system switching command is in institute State primary processor and one of first operating system and described second operating system work are run according to the guiding of the coprocessor After for foregrounding system, the instruction of the user input that the primary processor is received, or foregrounding system is automatically generated Instruction.
According to another embodiment of the present invention, there is provided a kind of electronic equipment, including:Primary processor, operates for running System and perform application;Coprocessor, for guiding the primary processor to start;And memory cell, the first operation is installed System and second operating system different from first operating system, wherein, when first operating system and described second One of operating system as foregrounding system operation, another in first operating system and second operating system During in the first resting state, the foregrounding system is switched to first by the primary processor reception system switching command Resting state, wherein, first resting state be the electronic equipment in only described coprocessor be working condition;The association The operating state data of the foregrounding system is saved in memory cell by processor, and described in coprocessor guiding Primary processor starts, and the primary processor runs the first operating system and the second operating system according to the guiding of the coprocessor In another as foregrounding system.
Additionally, electronic equipment according to another embodiment of the present invention, wherein first resting state is S0i3 states.
Additionally, electronic equipment according to another embodiment of the present invention, it is characterised in that the coprocessor is used for from institute Reading starts flag in stating system switching command, guides the primary processor to start the operation started specified by flag System is used as foregrounding system.
Additionally, electronic equipment according to another embodiment of the present invention, it is characterised in that the memory cell includes first Sub- memory cell and the second sub- memory cell, wherein, the coprocessor is by the operating state data of the foregrounding system Be saved in memory cell, and the coprocessor guides the primary processor to start, the primary processor according to the association at Another in guiding first operating system of operation of reason device and the second operating system includes as foregrounding system:The association The operating state data of the foregrounding system is saved in the described first sub- memory cell by processor, and the coprocessor draws The primary processor is led to start and run another in the first operating system and the second operating system as foregrounding system System, and the coprocessor stores the operating state data from the described first sub- memory cell replicate to the described second son Unit.
Additionally, electronic equipment according to another embodiment of the present invention, it is characterised in that the first sub- memory cell by Static RAM is constituted, and the second sub- memory cell is made up of dynamic random access memory.
Additionally, electronic equipment according to another embodiment of the present invention, it is characterised in that the system switching command be The primary processor runs one of first operating system and described second operating system according to the guiding of the coprocessor After as foregrounding system, the instruction of the user input that the primary processor is received, or foregrounding system is given birth to automatically Into instruction.
System switching method and electronic equipment according to embodiments of the present invention, for using the SoC of new Intel and micro- SoftFor the electronic installation of one hard double soft Hybrid systems, can realize in two operating system One in running status and another in a dormant state when, realize the states switching of two operating system, and effectively protect Deposit the working condition of the operating system for switching to resting state.According to the bright utilization S0i3 states of this law one is hard double soft Hybrid system switching methods, can realize than based on traditional faster switch speed of S3 states.
It is to be understood that foregoing general description and following detailed description are both exemplary, and it is intended to In further illustrating for the claimed technology of offer.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram of diagram electronic equipment according to embodiments of the present invention;
Fig. 2 is the flow chart of the first embodiment of diagram system switching method according to embodiments of the present invention;And
Fig. 3 is the flow chart of the second embodiment of diagram system switching method according to embodiments of the present invention.
Specific embodiment
Hereinafter, describe with reference to the accompanying drawings multiple embodiments, using and modification.Additionally, the embodiments described below is excellent The particular example of choosing, and technically preferred various limitations are provided with, but in the following description, the invention is not restricted to these Embodiment.
First, electronic equipment according to embodiments of the present invention is described into reference picture 1.The electronic equipment is preferably e.g. Personal computer, smart mobile phone, personal digital assistant, palm PC etc..
Fig. 1 is the theory structure schematic diagram of diagram electronic equipment according to embodiments of the present invention.According to embodiments of the present invention Electronic equipment 1 be the electronic equipment based on a hard double soft mixed architectures, that is to say, that two are run on a set of hardware system Operating system(Such asOperating system andOperating system).As shown in figure 1, being implemented according to the present invention The electronic equipment 1 of example has primary processor 10, coprocessor 20 and memory cell 30.It is easily understood that for simplification in Fig. 1 Description only shows the component being closely related with the present invention, and electronic equipment 1 according to embodiments of the present invention can also include certainly Other components, display unit, communication unit etc..
Specifically, the primary processor 10 of the electronic equipment 1 shown in Fig. 1 is used to run the first operating system(Such asOperating system)And second operating system different from first operating system(Such asOperation system System), and perform the application based on operating system.In a preferred embodiment of the invention, first operating system isOperating system, shouldOperating system is stopped by the use of the S0i3 states realized by coprocessor as it Dormancy state.The coprocessor 20 of electronic equipment 1 is used to guide the primary processor 10 to start, to run corresponding operation system System.In one embodiment of the invention, the coprocessor 20 also includes System Management Unit(SCU).Electronic equipment 1 is deposited Storage unit 30 is provided with the first operating system and second operating system different from first operating system.As shown in figure 1, institute State memory cell 30 and further include the first sub- memory cell 301 and the second sub- memory cell 302, for switching in operating system During preserve be switched to resting state operating system service data, to realize quickly opening in subsequent handoff procedure It is dynamic.In one embodiment of the invention, the described first sub- memory cell 301 is by static RAM(SRAM)Structure Into the second sub- memory cell is by dynamic random access memory(DRAM)Constitute.
Electronic equipment 1 according to embodiments of the present invention is outlined above by reference to Fig. 1, root is described below with reference to Fig. 2 and Fig. 3 According to the system switching method of the embodiment of the present invention.
Fig. 2 is the flow chart of the first embodiment of diagram system switching method according to embodiments of the present invention.Such as Fig. 2 institutes Show, system switching method according to embodiments of the present invention is comprised the following steps:
In step s 201, in one of first operating system and second operating system as foregrounding system Operation, in first operating system and second operating system another be in the first resting state when, the main place The reason reception system switching command of device 10, the first resting state is switched to by the foregrounding system.In a reality of the invention In applying example, first resting state is that only described coprocessor 20 is working condition in the electronic equipment 1.More specifically, First resting state is S0i3 states.Due under the S0i3 states, only described coprocessor 20 in the electronic equipment 1 It is working condition, the electronic equipment 1 is in the lowest power consumption state after start.
In one embodiment of the invention, the system switching command includes starting flag.Specifically, mark is started Know the operating system that position 200 is used to indicate to start/be switched to.In one embodiment of the invention, the startup flag It is 2 bit datas, it is defined as follows shown in table 1.
Start flag 00 01 10 11
To be launched/operating system for being switched to OS1 OS2 OS1→OS2 OS2→OS1
Table 1
As shown in table 1, when startup flag is set to " 00 ", it is the first operating system that it indicates operating system to be launched OS1。
When startup flag is set to " 01 ", it is the second operating system OS2 that it indicates operating system to be launched.
When startup flag is set to " 10 ", if electronic equipment is currently at open state, it indicates behaviour to be launched Make system first to start the first operating system OS1, then start the second operating system OS2, while the first operating system OS1 is turned It is resting state;If electronic equipment is in use, and the first operating system OS1 is in running order, while second Operating system OS2 is not actuated or in a dormant state, then start flag " 10 " and indicate that the second operating system OS2 is started or cut Working condition is changed to, while the first operating system OS1 is switched into resting state.
Similarly, when startup flag is set to " 11 ", if electronic equipment is currently at open state, it indicates to wait to open Then dynamic operating system start the first operating system OS1 first to start the second operating system OS2, while being by the second operation System OS2 switchs to resting state;If electronic equipment is in use, and the second operating system OS2 is in running order, together When the first operating system OS1 it is not actuated or in a dormant state, then start flag " 11 " and indicate to open the first operating system OS1 Move or switch to working condition, while the second operating system OS2 is switched into resting state.
In one embodiment of the invention, it in the system switching command is the main place that the system switching command is Reason device runs one of first operating system and described second operating system as foreground according to the guiding of the coprocessor After operating system, the instruction of the user input that the primary processor is received, or the instruction that foregrounding system is automatically generated. Specifically, as it was previously stated, in running order in first operating system, and second operating system is in a dormant state In the case of, the instruction of the user input received in the primary processor, or the instruction that automatically generates of foregrounding system it Afterwards, start flag to be set as " 10 ".On the contrary, it is in running order in second operating system, and first operation System in a dormant state in the case of, the instruction of the user input received in the primary processor, or foregrounding system After the instruction for automatically generating, start flag and be set as " 11 ".
Hereafter, treatment enters step S202.
In step S202, the operating state data of the foregrounding system is saved in storage by the coprocessor 20 Unit 30, for the fast quick-recovery operating system in a dormant state in subsequent net system switching process.Hereafter, treatment is entered Step S203.
In step S203, the coprocessor 20 guides the primary processor 10 to start, the basis of the primary processor 10 Another in guiding first operating system of operation of the coprocessor 20 and the second operating system is used as foregrounding system.
By referring to the system switching method according to embodiments of the present invention that Fig. 2 is described, processed by the association as hardware The switching of the Attended Operation system of device 20, and realize one hard as the resting state of operating system by using S0i3 states The switching of first operating system and the second operating system of double soft Hybrid systems, reduces electronic equipment 1 to greatest extent Resting state power consumption, and improve the switch speed of operating system.
Fig. 3 is the flow chart of the second embodiment of diagram system switching method according to embodiments of the present invention.Shown in Fig. 3 Step S301 is identical with the step S201 shown in Fig. 2, and its repeated description will be omitted herein.
As shown in figure 3, in step s 302, the coprocessor 20 preserves the operating state data of foregrounding system To the first sub- memory cell 301.
Hereafter, treatment enters step S303.Step S303 shown in Fig. 3 is identical with the step S203 shown in Fig. 2, herein will Omit its repeated description.Hereafter, treatment enters step S304.
In step s 304, operating state data is copied to by the coprocessor 20 from the first sub- memory cell 301 Two sub- memory cell 302.
The second embodiment of the system switching method according to embodiments of the present invention described by referring to Fig. 3, describes with Fig. 2 System switching method according to embodiments of the present invention first embodiment, by before operating system switches, first needing The operating state data of the foregrounding to be preserved is saved in the first sub- memory cell 301 being made up of more quick SRAM, from And make it possible to that operating system switching is more performed quickly.Hereafter, after operating system switching, the first son will be stored in and is deposited Operating state data in storage unit 301 copies to the second son by needing the DRAM of more low-power consumption and more large storage capacity to constitute Memory cell 302, so as to further reduce the power consumption of electronic equipment 1.
System switching method according to embodiments of the present invention is described above by reference to Fig. 1 to Fig. 3 and switched using the system The electronic equipment of method, its by the switching of the Attended Operation system of coprocessor 20 as hardware, by using S0i3 states The exchange of the operating state data to be preserved is carried out as the resting state of operating system and between SRAM and DRAM, is realized The switching of first operating system and the second operating system of one hard double soft Hybrid systems, reduces electronics to greatest extent The resting state power consumption of equipment 1, and improve the switch speed of operating system.
It should be noted that in this manual, term " including ", "comprising" or its any other variant be intended to Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that Also there is other identical element in process, method, article or equipment including the key element.
Finally, in addition it is also necessary to explanation, a series of above-mentioned treatment are not only included with order described here in temporal sequence The treatment of execution, and including parallel or respectively, rather than the treatment for performing in chronological order.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by Software adds the mode of required hardware platform to realize, naturally it is also possible to all implemented by hardware.Based on such understanding, What technical scheme contributed to background technology can be embodied in the form of software product in whole or in part, The computer software product can be stored in storage medium, and such as ROM/RAM, magnetic disc, CD, including some instructions are used to make Obtain a computer equipment(Can be personal computer, server, or network equipment etc.)Perform each embodiment of the invention Or the method described in some parts of embodiment.
The present invention is described in detail above, specific case used herein is to principle of the invention and embodiment party Formula is set forth, and the explanation of above example is only intended to help and understands the method for the present invention and its core concept;Meanwhile, it is right In those of ordinary skill in the art, according to thought of the invention, change is had in specific embodiments and applications Part, in sum, this specification content should not be construed as limiting the invention.

Claims (10)

1. a kind of system switching method, is applied in an electronic equipment, and the electronic equipment includes coprocessor and primary processor, And the electronic equipment is provided with the first operating system and second operating system different from first operating system, described System switching method includes:
When one of first operating system and second operating system are used as foregrounding system operation, first operation When another in system and second operating system is in the first resting state, primary processor reception system switching refers to Order, first resting state is switched to by the foregrounding system, wherein, switched in the foregrounding system described Under first resting state, only described coprocessor is working condition in the electronic equipment;
The operating state data of the foregrounding system is saved in memory cell by the coprocessor, and
The coprocessor guides the primary processor to start, and the primary processor is according to the guiding of coprocessor operation the Another in one operating system and the second operating system is used as foregrounding system.
2. the system as claimed in claim 1 changing method, wherein first resting state is S0i3 states.
3. the system as claimed in claim 1 changing method, wherein the coprocessor guides the primary processor to start, it is described Primary processor according to the coprocessor guiding operation the first operating system and the second operating system in another as preceding Platform operating system includes:
The coprocessor reads startup flag from the system switching command, guides and is opened described in the primary processor startup Operating system specified by dynamic flag is used as foregrounding system.
4. Claim 1-3 it is any as described in system switching method, wherein the memory cell includes that the first son storage is single Unit and the second sub- memory cell, it is single that the operating state data of the foregrounding system is saved in storage by the coprocessor Unit, and the coprocessor guides the primary processor to start, and the primary processor is transported according to the guiding of the coprocessor Another in the operating system of row first and the second operating system includes as foregrounding system:
The operating state data of the foregrounding system is saved in the described first sub- memory cell by the coprocessor,
The coprocessor guides the primary processor to start and run another in the first operating system and the second operating system One as foregrounding system, and
The coprocessor is single to the described second son storage from the described first sub- memory cell replicate by the operating state data Unit.
5. system switching method as claimed in claim 4, wherein the first sub- memory cell is by static random access memory Device is constituted, and the second sub- memory cell is made up of dynamic random access memory.
6. Claim 1-3 it is any as described in system switching method, wherein the system switching command is at the main place Reason device runs one of first operating system and described second operating system as foreground according to the guiding of the coprocessor After operating system, the instruction of the user input that the primary processor is received, or the instruction that foregrounding system is automatically generated.
7. a kind of electronic equipment, including:
Primary processor, for running operating system and performing application;
Coprocessor, for guiding the primary processor to start;And
Memory cell, is provided with the first operating system and second operating system different from first operating system,
Wherein, when one of first operating system and second operating system are used as foregrounding system operation, described In one operating system and second operating system another be in the first resting state when, the primary processor reception system Switching command, the first resting state is switched to by the foregrounding system, wherein, switch to institute in the foregrounding system State under the first resting state, only described coprocessor is working condition in the electronic equipment;Before the coprocessor will be described The operating state data of platform operating system is saved in memory cell, and the coprocessor guides the primary processor to start, Another work of the primary processor in guiding first operating system of operation of the coprocessor and the second operating system It is foregrounding system.
8. electronic equipment as claimed in claim 7, wherein first resting state is S0i3 states.
9. electronic equipment as claimed in claim 7, it is characterised in that the coprocessor is used for from the system switching command Middle reading starts flag, guides the primary processor to start the operating system started specified by flag and is grasped as foreground Make system.
10. claim 7 to 9 it is any as described in electronic equipment, it is characterised in that the memory cell is deposited including the first son Storage unit and the second sub- memory cell,
Wherein, the operating state data of the foregrounding system is saved in memory cell by the coprocessor, and described Coprocessor guides the primary processor to start, and the primary processor is according to the first operation of the guiding of coprocessor operation system Another in system and the second operating system includes as foregrounding system:
The operating state data of the foregrounding system is saved in the described first sub- memory cell by the coprocessor,
The coprocessor guides the primary processor to start and run another in the first operating system and the second operating system One as foregrounding system, and
The coprocessor is single to the described second son storage from the described first sub- memory cell replicate by the operating state data Unit.
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