CN101419560B - Operating system switching method based on expandable firmware interface - Google Patents
Operating system switching method based on expandable firmware interface Download PDFInfo
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- CN101419560B CN101419560B CN 200810204083 CN200810204083A CN101419560B CN 101419560 B CN101419560 B CN 101419560B CN 200810204083 CN200810204083 CN 200810204083 CN 200810204083 A CN200810204083 A CN 200810204083A CN 101419560 B CN101419560 B CN 101419560B
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Abstract
The invention discloses an operating system switching method based on an extensible firmware interface, and provides a basis for one or a plurality of users to locally or remotely monitor and control a computer containing one or a plurality of operating systems. In terms of the technical scheme, the method comprises the following steps: starting the extensible firmware interface, and then starting a first operating system; suspending a current operation of the computer; storing the first operating system to a secondary storage device; returning to a service state of the extensible firmware interface, and loading a corresponding global unique identification partition table; obtaining a second operating system from the secondary storage device; and restoring the suspended operation of the computer. The method is applicable to the field of the computer operating systems.
Description
Technical field
The present invention relates to a kind of operating system switching method, relate in particular to a kind of by the method for super operation system by switching between a plurality of operating systems of network in a computing machine.
Background technology
Traditional all resources for computer system of operating system desired control.Therefore, the file system under each operating system can only be controlled system resource as self exclusive resource.The operation that this has just stoped being written into of other operating system and has been independent of current operation system.Only having can could be by far call with the medium that this operating system is complementary, and these medium capabilitys have been subject to the restriction that current operation system can provide, and the present invention can overcome this limitation.
Particularly useful when if the application uses with super or higher leveled operating system.The super operation system, for example in U.S. patent application case 09/285,147 described flash memory virtual opetrating system, utilize the virtualization computer system resource, solved the problem that operating system is dominated internal memory exclusively, a plurality of like this operating systems just can be at the enterprising line operate of same computer.
Operating system by internet or similar telecommunication system monitoring objective computing machine allows computer user management and other computing machine of operation and operating system and their resource and user.This just makes the user can need not the work on the spot of object computer.A plurality of operating systems on the monitoring remote computer can make the user move widely from more operating system and make a profit in the application program.
In addition, if certain file system of the main startup piece of runtime operating system or a secondary storage physical equipment is destroyed, this operating system just can't have been used so.And by entering the medium of a super operation system, the user just can order computing machine to switch to and go in another operating system, and it both can be the runtime operating system of copy, also can be a new operating system.By new startup piece and/or new file system are set, the user just can preserve or recover the operating system on the object computer selectively.
Related to the present invention, U.S. Patent application 09/285,147 has been described the virtual super operation of flash memory system (SOS) 09/285,147 and 09/376,825 and has been described protectiveness subregion and virtual.U.S. Patent application 09/409,013 has been described the user images cross section of the virtual super operation of flash memory system, and 09/517,545 described by super operation system upload and download operating system.
At present the computer user particularly the Internet user be that software by the cover of one on the runtime operating system " head of a family's control " function comes monitoring computer.Yet many child users know these functions also more understand how to use and forbid than their father and mother, thereby these monitoring functions often do not have great effect.But the super operation system can arrange the I/O activity of monitoring and catching keyboard, Voice ﹠ Video, and report to another operating system (by sharing storage and Email etc.), provide a simpler and more effective measure of supervision to prevent or report unauthorized activity.
The virtual super operation of flash memory system can be by catching the application program on the runtime operating system all input-output records and be transferred to another operating system.This will make the dispute in some ecommerce solve by the factual data that an independent parties is shown, rather than mainly rely at present seller or client's online transaction data.
For the telemanagement in a network client or the network, an operating system has only been installed by main production firm at present.Typical situation is that a popular operating system is selected for unified network management by company.A computing machine only has the limitation of an operating system to impel a lot of users to give up special value and the advantage of other operating system.Therefore the plan that can pass through the setting of any personal computer the multiple operating system of internet or other network monitor and control is provided, and also is useful concerning prior art.
Two ten years in the past, all hardware aspect of computer technology has all had significant progress, but the operating system industry seldom has new progress, and at least part of reason is that each computer system in the network environment only has the limitation of an operating system.Therefore, on local or remote computer, if can be reduced at monitoring, control and switching between runtime operating system, then can strengthen and promote the progress of software.
Summary of the invention
The object of the invention is to address the above problem, a kind of computer operating system changing method is provided, for one or more users monitor the computing machine that contains one or more operating systems and control provides the foundation from Local or Remote, also be other super operation system service such as creation operation subregion and the coexistence of a plurality of operating system basis that provides technology to realize.
Technical scheme of the present invention is: the present invention has disclosed a kind of operating system switching method based on Extensible Firmware Interface, switches in a plurality of operating systems of a computing machine, and the method comprises:
Start Extensible Firmware Interface, then start first operating system;
Hang the current operation of this computing machine; Wherein, in the situation that the customer requirements switching operating system, computing machine will restart after executing ACPI S4 sleep command, and wake the second operating system that is in hibernation up;
Store the first operating system to secondary storage devices;
Get back to the Extensible Firmware Interface service state, be written into corresponding global unique identification partition table;
Obtain the second operating system from secondary storage devices;
Recover the operation that this computing machine is draped;
Wherein, when using the remote mode operation, the overseer of computer user is operation flash memory virtual opetrating system medium at first, and this medium can move in Extensible Firmware Interface, also can move in any one runtime operating system.
The above-mentioned operating system switching method based on Extensible Firmware Interface, wherein, this first operating system is different operating system with this second operating system.
The above-mentioned operating system switching method based on Extensible Firmware Interface, wherein, this first operating system and this second operating system are relatively independent, without host and guest's the operating system of dividing.
The above-mentioned operating system switching method based on Extensible Firmware Interface wherein, is controlled the switching between a plurality of operating systems of this computing machine by the Local or Remote supercomputer.
The above-mentioned operating system switching method based on Extensible Firmware Interface, wherein, the switching of being controlled by the Local or Remote supercomputer between a plurality of operating systems of this computing machine can be passed through EFI or any one runtime operating system.
The present invention has also disclosed a kind of operating system switching method, switches in a plurality of operating systems of a computing machine, it is characterized in that, the method comprises:
Hang the runtime operating system of this computing machine to the dormant state of ACPI S4;
Should runtime operating system be placed in the nonvolatile memory;
From the subregion of this nonvolatile memory, select the second operating system;
Wake this second operating system up to the duty of ACPI G0.
Above-mentioned operating system switching method, wherein, by the switching between the control operation system of super operation system, this super operation system comprises virtual global unique identification partition table, and this virtual global unique identification partition table comprises the suspension of this runtime operating system and this second operating system and wakes information up.
The present invention contrasts prior art following beneficial effect: the present invention is by using the ACPI dormancy mechanism of runtime operating system, make switching operating system by suspension, give next operating system the control of system resource, and switch to the operating system that is in suspension status by reduction rather than cold start-up.The contrast prior art, the present invention realizes freely switching arbitrarily and fast between a plurality of operating systems of same computing machine.
Description of drawings
Fig. 1 is the schematic diagram that concerns of flash memory virtual opetrating system medium and flash memory virtual opetrating system server.
Fig. 2 is the process flow diagram of an embodiment of changing method between the different operating system on the same computing machine of the present invention.
Fig. 3 is the process flow diagram of another embodiment of changing method between the different operating system on the same computing machine of the present invention.
Fig. 4 is the view of traditional ACPI logic.
Fig. 5 is that super operation system controlling run phase operating system is waken the schematic diagram with dormancy up.
Fig. 6 and Fig. 7 are the schematic diagram of super operation Installed System Memory mapping.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The invention provides from the super operation system of Local or Remote and monitor and control.The monitoring of super operation system be by different application programs for example Internet-browser supervise the integrated application of one or more computing machine and virtual environment, and restricted area access.The control of super operation system is to report and control one or more computing machine and virtual environment by operation and control phase operating system and application program, comprises shutdown, restarts, recovers, the switching between different operating system.
As shown in Figure 1, use program (for example flash memory virtual opetrating system server 10 among Fig. 1) and a long-range supervisor (for example flash memory virtual opetrating system medium 11) of a this locality, flash memory virtual opetrating system server 10 is by self or started to control the operation of object computer by flash memory virtual opetrating system medium 11.If the operation of self being started by server 10, medium 11 only needs long-rangely to be activated when program, agreement or other desired information are provided having.If the operation of wanting switching operating system of being started by medium 11, medium 11 directly switches Control Server 10.
By the communication between flash memory virtual opetrating system medium 11 and the flash memory virtual opetrating system server 10, can on the computing machine with super operation systemic-function, monitor one or more operating systems by the Internet.The Internet herein is the telecommunication system of first-selection of the present invention, yet is appreciated that telecommunication system of the present invention includes but not limited to network (private local area network, broadband networks etc.) and similar wired and wireless data communication system.
The super operation system is the monitor of a computer system, manages all cyber-net resources by all functions on the existing operating system of control computing machine.The super operation system regulates and supports to install traditional runtime operating system and built-in application program.Such super operation system can be the flash memory virtual opetrating system that discloses in the United States Patent (USP) 09/285,147.
Flash memory virtual opetrating system medium 11 is activated at remote computer, be connected with the object computer that has flash memory virtual opetrating system server 10 programs by the internet, it should be noted that the flash memory virtual opetrating system server 10 of indication is the local program that is used on the computing machine on the operating computer here.
Global unique identification partition table (GPT, GUID Partition Table) is the partition table that is proposed in order to replace PC tradition partition table (MBR) by Intel.GPT subregion maximum can reach 18ExaByte, and each disk can be comprised of 128 subregions.And the subregion maximum of traditional partition table (MBR) can reach 2TB.And each disk can only be by 4 main partitions.If the GPT of secondary storage is carried out virtual, the necessary information of all virtual storages all is stored in super data VGPT(Virtual GUID Partition Table) in.
Flash memory virtual opetrating system server 10 is shared storing virtual global unique identification partition table VGPT by reading) current copy, know that it is available which subregion, operating system and server program are arranged.Virtual directory has comprised all system virtualization information, the operating system sequence number of current acquiescence, the different operating system in secondary storage devices and the relevant information of each operating system have been comprised specifically, for example the absolute logical address of beginning of the absolute logical address of the beginning of operating system and this os starting piece.
Flash memory virtual opetrating system medium 11 transmission information and operation (comprising operating system and their startup path) are to flash memory virtual opetrating system server 10, latter's fill order.Therefrom can find out, flash memory virtual opetrating system medium 11 is programs of tailoring for runtime operating system on the computing machine, operation after can being activated under operating system.
Flash memory virtual opetrating system medium 11 capture-datas are to offer third party's register system.Specifically, after the mandate of the flash memory virtual opetrating system server 10 that obtains object computer, flash memory virtual opetrating system medium 11 is caught the input/output data of the application program in the runtime operating system, and can record or transmit these data to other system.
Realize that by the internet foundation stone of above-mentioned monitoring and control is memory device virtual that utilizes a super operation system.Such as hard disk or flash memory etc. of a physics secondary storage devices will be divided into one group of flogic system, and every group comprises an independently operating system.These partition holdings are protected memory area territories, and each operating system can not be obscured and swap data, only the exchanges data that specially requires of user.The necessary information of all virtual storages all is stored in virtual GPT(VGPT) in.Obtain the copy of the virtual directory of current system by flash memory virtual opetrating system server 10, for any change in the virtual directory, for example switching of runtime operating system will be sent to by the services request of virtual directory the super operation system.
When using the remote mode operation, the overseer of computer user is operation flash memory virtual opetrating system medium 11 at first, and this medium can move in EFI, also can move in any one runtime operating system.This medium 11 is linked up by at least one network.Whether at first inquire about the object computer that will monitor and control exists, if desired operating system exists, flash memory virtual opetrating system medium 11 will inform that this system of object computer user exists, and inform that flash memory virtual opetrating system server 10 obtains the copy of current virtual directory.Virtual directory has been determined the operating system of current acquiescence, the different operating system in secondary storage devices and the relevant information of each stored operating system, comprises the absolute logical address of beginning of operating system and the absolute logical address of beginning of this os starting piece.The super operation system is a virtual opetrating system (Virtual OS), thereby can change.The relevant information of current default action system can be stored in the program code of virtual opetrating system, gives tacit consent to being changed so that virtual opetrating system starts the default action system automatically.The user can change the default action system by the order that arranges of virtual opetrating system as changing the secondary storage subregion.If such change is arranged, the virtual directory in virtual opetrating system virtual directory procedure code will upgrade automatically with relevant default action system.No matter what the physical location of the default action system in secondary storage is, the address sequence that is corrected guarantees the correct execution of input/output function demand.
In sum, calculate the control of hands-operation system and can finish by local computer user or long-range overseer, its basic running program is the same.The difference of local and remote control is the difference of license method, if local control, the object computer user only needs the switching between the solicit operation system so; If Long-distance Control, object computer will give a supervision computing machine and permit switching between the control operation system.
Below discuss in detail handoff procedure between the different operating system on the same computing machine.See also Fig. 2, at first enter step S100, start Extensible Firmware Interface EFI, then start a destination OS, i.e. described the first operating system in back; Enter again step S102, the current operation on outstanding this computing machine; Then enter step S104, store the first operating system to secondary storage devices; Enter again step S106: get back to Extensible Firmware Interface EFI service state, be written into corresponding GPT; Enter again step S108, from secondary storage devices, obtain the second operating system; Enter at last step S110 after to be switched the finishing, recover the operation that computing machine is draped.First operating system here is different operating system with the second operating system, and for example the first operating system is windows operating system, and the second operating system is (SuSE) Linux OS.Just described above, the switching between this different operating system can directly be initiated by the local computer user, also can be initiated by a long-range supercomputer (supervise computing machine or be called long-range virtual opetrating system medium) control.
Fig. 3 further shows another embodiment of the handoff procedure between the different operating system on the same computing machine.See also Fig. 3, at first enter step S200, the runtime operating system of outstanding this computing machine is to the dormant state of ACPI S4; Then enter step S202, runtime operating system is placed in the nonvolatile memory; Enter again step S204, from the subregion of nonvolatile memory, select the second operating system; Enter at last step S206 after to be switched the finishing, wake the second operating system up to the duty of ACPI G0.First operating system here is different operating system with the second operating system, and for example the first operating system is windows operating system, and the second operating system is (SuSE) Linux OS.ACPI is the power management specification that is configured by Intel, Microsoft and the common open senior power interface of Toshiba.Just described above, the switching between this different operating system can directly be initiated by the local computer user, also can be initiated by a long-range supercomputer (supervise computing machine or be called long-range virtual opetrating system medium) control.When by the switching between the long-range super operation system control different operating system, the super operation system comprises virtual directory, and virtual directory has comprised the suspension of runtime operating system and the second operating system and waken information up.
Fig. 4 shows the feature of traditional ACPI, and ACPI traditionally is that operating system is used for turning off peripherals and saves power supply.Traditionally, the S0 state of ACPI is running status (Run State), and the computing machine under the running status moves fully.The S1 state of ACPI is suspension status (Suspend State), the CPU suspension active under the suspension status but still keep its content.The S2 of ACPI and S3 state are dormant state (Sleep State), under these two states, but the content CPU content of keeping in the internal memory can be lost, so and the difference between S2 and the S3 the CPU that finishes by firmware (EFI) reinitialize or equipment reinitialize.The S4 of ACPI is dormant state, memory content is stored in the disk in this state, content will be recovered by turning back to the S0 state, be equivalent to the soft-off (Soft-off) of hardware device, and this state can be realized by operating system or firmware (EFI).
ACPI among the present invention switches to different operating system and makes current operation system enter the dormant state of ACPIS4.The S4 dormant state is by the dormant state of a kind of low-power consumption of ACPI support.The invention process the S4 dormant state of os starting ACPI, when the S4 of os starting ACPI dormancy, the runtime operating system of current active is responsible for preserving all system states.Before entering the S4 dormant state, operating system is preserved all system states in internal memory.When behind the S4 recovering state, newly will be reconfigured with missing equipment.
As shown in Figure 5, super operation system (namely for example being aforesaid flash memory virtual opetrating system) places ACPI S4 dormant state by the operating system of current operation in the control computing machine, hangs current operating system or the software of other switching.Under this state, processor is not carried out indication, and internal storage state is not refreshed yet, and all equipment all is in ACPI D3(device shutdown) state.
The order that computing machine is sent by the super operation system is transitioned into the dormant state of G1 (S4) from the duty of G0 (S0).The super operation system utilizes an ACPI S4 program of revising to realize, the function of amended ACPI S4 program is the same with traditional ACPI S4, different is after executing the S4 order, computing machine can be selected powered-down, also can select to restart, this is controlled by the super operation system.As in the situation that the customer requirements switching operating system, computing machine will restart after executing the S4 order, and wake the operating system that another is in hibernation up.ACPI S4 program is to prepare the computing machine dormant stage by ACPI S4 byte and the register that arranges, the state of CPU, register and RAM is saved in the non-volatile dormancy storer (NVS), such as a disk file or subregion, then computing machine enters the S4 dormant state.
As shown in Figure 6, the super operation system with the Installed System Memory of runtime operating system and agreement thereof and parameter from the physical memory mapping and be saved in the non-volatile memory device (NVS, Non-Volatile Sleeping memory).The information that is stored among the NVS comprises that enabled instruction, ACPI table and runtime operating system hang (dormancy) required status information.Runtime operating system is placed into the required physical memory addresses of physical memory is recorded to virtual GPT(VGPT) in.Virtual GPT contains the necessary information of each bootable virtual system, preserves subregion, the state of register and the important information of other suspension and wake operation system such as the boot partition of operating system, the dormancy of operating system.Such operation allows computing machine just as under the S4 of ACPI state.
Aforesaid virtual directory has comprised the type of position, address and the current cabinet of virtual storage system.Virtual directory has also comprised the information of all disks and memory device (secondary and main memory device), and that adds current virtual machine comprises boot partition in each interior partition information (file system on the physical disk and not the space of usefulness).
As shown in Figure 7, in order to activate a new operating system, subregion is selected at the physical storage (nonvolatile memory) that comprises the required information of new operating system, ACPI table and other operation system by the super operation system.New operating system is positioned at the data division of the virtual directory of flash memory virtual opetrating system server selection.Computing machine is waken up from ACPI S4 dormant state, returns to the G0 duty.Computing machine thereby need not restart new operating system is because this operating system that it only wakes up (returning to former running status).
Operating system is switched and can be finished by the order of flash memory virtual opetrating system server or flash memory virtual opetrating system medium.If request is from the flash memory virtual opetrating system server of this locality, the order of all switching operating systems is carried out by flash memory virtual opetrating system server.If request from flash memory virtual opetrating system medium, then transmits the server operation order by medium and comes switching operating system.Object computer must be installed flash memory virtual opetrating system server, and obtains it by flash memory virtual opetrating system medium and permit to control its execution and operation.
The embodiment of first-selection of the present invention is the switching between the operating system, and similarly, any software comprises that built-in application program also can use S4 dormant state mentioned above to switch.
A function of great use of the present invention is by the Internet download operating system, by downloading new operating system to one a protected physical equipment subregion.Flash memory virtual opetrating system server can use new operating system, and allows current runtime operating system be in the S4 dormant state.
Above-described embodiment provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be in the situation that do not break away from invention thought of the present invention; above-described embodiment is made various modifications or variation; thereby protection scope of the present invention do not limit by above-described embodiment, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (3)
1. operating system switching method based on Extensible Firmware Interface, by being arranged in Extensible Firmware Interface or flash memory virtual opetrating system medium switches in a plurality of operating systems of computing machine, the method comprises by the Local or Remote supercomputer:
Start Extensible Firmware Interface, then start first operating system;
Hang the current operation of this computing machine; Wherein, in the situation that the customer requirements switching operating system, computing machine will restart after executing ACPI S4 sleep command, and wake the second operating system that is in hibernation up;
Store the first operating system to secondary storage devices;
Get back to the Extensible Firmware Interface service state, be written into corresponding global unique identification partition table;
Obtain the second operating system from secondary storage devices;
Recover the operation that this computing machine is draped;
Wherein, when using the remote mode operation, the overseer of computer user is operation flash memory virtual opetrating system medium at first, and this medium can move in Extensible Firmware Interface, also can move in any one runtime operating system.
2. the operating system switching method based on Extensible Firmware Interface according to claim 1 is characterized in that, this first operating system is different operating system with this second operating system.
3. the operating system switching method based on Extensible Firmware Interface according to claim 1 is characterized in that, this first operating system and this second operating system are relatively independent, without host and guest's the operating system of dividing.
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| CN102148841B (en) * | 2010-02-05 | 2015-02-04 | 中国长城计算机深圳股份有限公司 | Method for remotely monitoring multiple operating systems |
| CN102135910B (en) * | 2011-03-03 | 2014-05-14 | 威盛电子股份有限公司 | Method for switching operating systems and electronic device using same |
| TWI588747B (en) * | 2014-01-14 | 2017-06-21 | 仁寶電腦工業股份有限公司 | Method for switching operating systems and electronic apparatus |
| CN105204876B (en) * | 2014-06-12 | 2019-01-15 | 联想(北京)有限公司 | System start method and electronic equipment |
| WO2016018349A1 (en) * | 2014-07-31 | 2016-02-04 | Hewlett-Packard Development Company, L.P. | Computing device with first and second operating systems |
| US9612887B2 (en) * | 2015-06-26 | 2017-04-04 | Intel Corporation | Firmware-related event notification |
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