CN1949177A - Virtual machine system and method of dynamically distributing UPNP equipment - Google Patents
Virtual machine system and method of dynamically distributing UPNP equipment Download PDFInfo
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- CN1949177A CN1949177A CN 200510112614 CN200510112614A CN1949177A CN 1949177 A CN1949177 A CN 1949177A CN 200510112614 CN200510112614 CN 200510112614 CN 200510112614 A CN200510112614 A CN 200510112614A CN 1949177 A CN1949177 A CN 1949177A
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Abstract
The invention relates supplies virtual machine system and dynamic allocation method for the plug and play device. The virtual machine system includes virtual machine monitor, and many operating systems. The virtual machine monitor includes plug and play module used to transmit generated interrupt signal to the corresponding operating system according to the call instruction, directly make the I/O operation act on the plug and play device by capturing corresponding operating system I/O operation, or according to plug and play standard specification, uses software to stimulate the I/O operation and feedback the result to the corresponding system to finish the processing indicated by the interrupt signal. The invention can realize full controllable dynamic resource allocation of the plug and play device without user participating, or rearrangement, staring up operation system.
Description
Technical field
The present invention relates to a kind of computer virtual technology, particularly relate to the method for a kind of dummy machine system and dynamic assignment PnP device.
Background technology
Dummy machine system is of long duration, and just at first uses at large scale computer and high-end server system since the sixties in last century.In modern age, along with the develop rapidly of PC, the application of dummy machine system on PC is also increasingly extensive.
At present, the dummy machine system on the market mainly contains three types shown in the table 1:
Table 1
| Type | Characteristic | Typical case's representative |
| Pattern based on main frame (Host-based) | By the dummy machine system that pure software is realized, dummy machine system need depend on a host operating system (Host OS) operation | VMWare and VirtualPC |
| Based on (Hybrid-based) pattern of mixing | Based on up-to-date hardware VT (Virtual Technology) technology, the dummy machine system of architectural framework and Host-based pattern has similar part: realize access hardware by a servo operation (Service OS) and EM equipment module (Device Module) | Xen (by the project of increasing income of univ cambridge uk's initiation) |
| Direct hardware access (Direct Hardware Access, DHA) pattern | Based on up-to-date hardware VT (Virtual Technology) technology, the dummy machine system of architectural framework and Host-based pattern has than big difference: do not have servo operation and EM equipment module, some specific hardware of the direct accesses virtual machine of operating system of user system assignment | CERT (proposing a kind of virtual machine implementation) by Intel company |
(Plug and Play PnP) is a kind of operating system characteristics that Microsoft proposed and at first be applied to the Windows95 system to plug and play.Because plug and play has greatly reduced the use complexity of operating system, good ease for use is provided, therefore, on PC operating system, obtain supporting very widely, and become a kind of industrial standard.So, will directly influence dummy machine system from the migration of server end to PC to the fine or not degree of plug and play support.
As can be seen from Table 2, above-mentioned three class dummy machine systems are not very desirable to the plug and play support:
Table 2
| Type | The plug and play degree of support | Technical Analysis |
| Host Based pattern | Support plug and play, do not support dynamic switching.When an operating system of user switches to the another one operating system of user, need the user to extract equipment by hand, switch operating system of user, insert this equipment again | Only support passive type plug and play (only handling the true interruption of real equipment) |
| Based on the pattern of mixing | Do not support plug and play.Add new equipment if desired, can only at first delete operating system of user, revise its initial hardware information configuration file, and then create operating system of user again | Still the plug and play that is unrealized support.If realize, also with Host Based mode class seemingly |
| Direct hardware access pattern | Support plug and play, but, have and can only have an operating system of user to support plug and play, support equipment is not shared and is dynamically switched. | Distributing angle from hardware is a kind of asymmetrical dummy machine system |
By above-mentioned analysis, can draw to draw a conclusion: existing dummy machine system is not supported the dynamic assignment of PnP device, gives final user's user experience with directly influencing dummy machine system, influences its promotion and application to PC.
Therefore, be necessary to provide a kind of and can support the dummy machine system of PnP device dynamic assignment and the problem of the PnP device dynamic assignment that the PnP dynamic allocation method solves present existence well.
Summary of the invention
The objective of the invention is to, a kind of dummy machine system is provided.
Another object of the present invention is to, a kind of method of dynamic assignment PnP device is provided.
A kind of dummy machine system comprises virtual machine monitor, hardware and a plurality of operating system.Wherein, this virtual machine monitor further comprises the plug and play module, be used for according to call instruction, the respective interrupt signals that produces is sent to the corresponding operating system, and, directly this I/O is acted on PnP device, or according to the plug and play standard criterion by intercepting and capturing the I/O operation of this corresponding operating system, feed back to this corresponding operating system by software simulation I/O operation and with analog result, finish the indicated processing of look-at-me.
Further, comprise scheduler in the virtual machine monitor, above-mentioned plug and play module comprises function allocating module, interrupts being provided with module and equipment I/O interface.Wherein, function allocating module is exported the corresponding condition parameter according to the call instruction of scheduler; Interruption is provided with the conditional parameter of module according to function allocating module output, and system sends look-at-me to corresponding operating; Equipment I/O interface is intercepted and captured the I/O operation of this corresponding operating system to PnP device, directly this I/O is acted on PnP device, or, feed back to this corresponding operating system by software simulation I/O operation and with analog result according to the plug and play standard criterion.
In addition, comprise the PnP device application program in the described operating system, the user produces call instruction by this application program, and above-mentioned plug and play module comprises function allocating module, interrupts being provided with module and equipment I/O interface.Wherein, the call instruction that function allocating module produces according to the PnP device application program, output corresponding condition parameter; Interruption is provided with the conditional parameter of module according to function allocating module output, and system sends look-at-me to corresponding operating; Equipment I/O interface is intercepted and captured the I/O operation of this corresponding operating system to PnP device, directly this I/O is acted on PnP device, or, feed back to this corresponding operating system by software simulation I/O operation and with analog result according to the plug and play standard criterion.
A kind of method of dynamic assignment PnP device, be used for the PnP device dynamic assignment at least one operating system in a plurality of operating systems of dummy machine system, it comprises step: 1) receive call instruction, the respective interrupt signals of generation sends to the corresponding operating system; 2) I/O that intercepts and captures this corresponding operating system operates, directly this I/O is acted on PnP device, or, feed back to this corresponding operating system by software simulation I/O operation and with analog result according to the plug and play standard criterion, finish the indicated processing of look-at-me.
Wherein, above-mentioned steps 1) comprising: according to call instruction, output corresponding condition parameter; According to conditional parameter, system sends look-at-me to corresponding operating.
The invention has the beneficial effects as follows: extract or insert terminal signaling by send PnP device to different operating system, promptly forge the PnP device look-at-me, allow operating system think that this PnP device is exactly to extract or insert, automatically finish corresponding unloading or installation process then, in fact this PnP device always with the dummy machine system physical connection.Therefore, can under the situation that does not need the user to participate in or reconfigure, start the operating system, realize the Dynamic Resource Allocation for Multimedia of controlled fully PnP device.
Description of drawings
Fig. 1 is the structural representation of the dummy machine system of first embodiment of the invention.
Fig. 2 is the structural representation of plug and play module in the dummy machine system of first embodiment of the invention.
Fig. 3 is the process flow diagram of the dynamic allocation method of PnP device in the dummy machine system of first embodiment of the invention.
Fig. 4 is the structural representation of the dummy machine system of second embodiment of the invention.
Fig. 5 is the structural representation of plug and play module in the dummy machine system of second embodiment of the invention.
Fig. 6 is the process flow diagram of PnP device dynamic allocation method in the dummy machine system of second embodiment of the invention.
Embodiment
Below with reference to description of drawings dummy machine system of the present invention and PnP device dynamic allocation method.Wherein, identical Reference numeral is represented the unit or the module of identical function.
As shown in Figure 1, be the dummy machine system of first embodiment of the invention.This dummy machine system comprises servo operation 1, at least one operating system of user 2, virtual machine monitor 3 and hardware 4.In the related technical scheme of first embodiment of the invention, owing to only relate to an operating system in another operating system handoff procedure, promptly, servo operation 1 is in the switching or the handoff procedure between the operating system of user 2 of operating system of user 2, the handoff procedure of PnP device (PnP Device), therefore, on this meaning, this servo operation 1 can be considered as an operating system of user 2, and then be convenient to simplify description.
This virtual machine monitor 3 includes scheduler 31 and plug and play module 32.Wherein, be provided with database or tabulation in this scheduler 31, comprise various information and parameter in this database or the tabulation, for example the parameter of the characteristic of each operating system, each operating system equipment (comprising PnP device), operating system and user's that can support instruction and respective operations thereof (for example user extract or insert instruction and the corresponding parameter of extracting or insert operation thereof) etc.
When switching to another operating system from current operation system, and when needing to be inserted into this another operating system with the PnP device that uses in the current operation system, user's inputting switching command.Scheduler 31 sends call instruction according to tabulation wherein to plug and play module 32 behind the switching command that receives user's input.According to the call instruction of scheduler 31, plug and play module 32 is sent interrupt instruction (extracting instruction) to current operation system, and expression need be extracted PnP device from current operation system.Simultaneously, this plug and play module 32 is intercepted and captured the follow-up I/O operation to this PnP device of current operation system, finishes the unloading operation of PnP device in current operation system, and with unloading operation feedback scheduling device 31 as a result.
Next, after from the unloading operation result who receives plug and play module 32, scheduler 31 sends call instruction to plug and play module 32.According to the call instruction of scheduler 31, plug and play module 32 is sent interrupt instruction (inserting instruction) to this another operating system, and expression need be inserted PnP device in this another operating system.Simultaneously, this plug and play module 32 is intercepted and captured the follow-up I/O operation to this PnP device of this another operating system, directly this I/O is acted on PnP device, or according to the plug and play standard criterion, feed back to this operating system by software simulation I/O operation and with analog result, finish the fitting operation of PnP device in this another operating system.
Particularly, as shown in Figure 2, this plug and play module 32 can comprise function allocating module 321, interrupt being provided with module 322 and equipment I/O interface 323.
Wherein, comprise the conditional parameter that calls at least in this function allocating module 321, this parameter list is understood the mode and the condition of PnP device dynamic assignment, and satisfies this mode and the necessary various parameters of condition.This interruption is provided with module 322 and is used for conditional parameter according to function allocating module 321 output, sends look-at-me to operating system.This equipment I/O interface 323 is used for the I/O operation of capturing operation system to equipment (comprising real equipment or virtual unit), and the result of I/O operation is returned to this operating system, here, the result of I/O operation can be the I/O operation return results of real hardware equipment, also can be the result who is obtained by software simulation I/O operation.
See also Fig. 2 and Fig. 3, the dynamic allocation method of PnP device in dummy machine system of the present invention is described.
When scheduler 31 receiving user input, PnP device switched to the switching command of another operating system from current operation system after, send call instruction according to tabulation wherein to function allocating module 321.According to the call instruction of scheduler 31, function allocating module 321 outputs to interrupting device module 322 with the conditional parameter of correspondence.Interrupting device module 322 produces corresponding look-at-me, and this look-at-me is sent to current operation system according to the conditional parameter of function allocating module output, and expression need be extracted PnP device from current operation system.Because in dummy machine system, the corresponding one or more virtual cpus of each operating system, the interrupt identification of the virtual cpu that interrupting device module 322 can be by the setting operation system is realized the transmission of look-at-me.Current operation system is carried out I/O follow-up, that PnP device is extracted from operating system according to the look-at-me of interrupting device module 322 and is operated.
Then, this equipment I/O interface 323 is intercepted and captured the follow-up I/O operation to this PnP device of current operation system, finishes the unloading operation of PnP device in current operation system, and with unloading operation feedback scheduling device 31 as a result.
Next, scheduler 31 sends call instruction according to tabulation wherein to function allocating module 321 after from the unloading operation result who receives plug and play module 32.According to the call instruction of scheduler 31, function allocating module 321 outputs to interrupting device module 322 with the conditional parameter of correspondence.Interrupting device module 322 produces corresponding look-at-me, and this look-at-me is sent to this another operating system according to the conditional parameter of function allocating module output, and expression need be inserted into PnP device in this another operating system.This another operating system is carried out I/O follow-up, that PnP device is extracted from operating system according to the look-at-me of interrupting device module 322 and is operated.This equipment I/O interface 323 is intercepted and captured the follow-up I/O operation to this PnP device of this another operating system, finishes the insertion operation of PnP device in this another operating system.
In first embodiment of the invention, be that example describes only with structure shown in Figure 2.But be not limited only to this,, also other configuration modes can be arranged realize that following PnP device switches under the situation of such function in different operating system.
For example, the PnP device in first embodiment is the equipment of exclusively enjoying, and therefore, when switching to another operating system from current operation system, it need be switched to simultaneously this another operating system.But when this PnP device is shared device, can only need be inserted into the operation in this another operating system.At this moment, another operating system of current operation system and this can be shared this PnP device simultaneously.
Can learn from above-mentioned description, essence of the present invention is to extract or insert terminal signaling by send PnP device to different operating system, promptly forge the PnP device look-at-me, allow operating system think that this PnP device is exactly to extract or insert, automatically finish corresponding unloading or installation process then, in fact this PnP device always with the dummy machine system physical connection.Therefore, can under the situation that does not need the user to participate in or reconfigure, start the operating system, realize the Dynamic Resource Allocation for Multimedia of controlled fully PnP device.
Dummy machine system of the present invention can be for based on mixed mode or based on the dummy machine system of host mode, as the Xen dummy machine system, integrated plug and play module in its virtual machine monitor, and utilize the scheduler of virtual machine monitor self, realize that according to above-mentioned method shown in Figure 3 PnP device is from the switching of current operation system to another operating system.
Fig. 4 is the dummy machine system of second embodiment of the invention.This dummy machine system comprises servo operation 1, at least one operating system of user 2, virtual machine monitor 3 and hardware 4, integrated plug and play module 32 in this virtual machine monitor 3.
Point out different with the dummy machine system of first embodiment is, be provided with the application program of PnP device in the operating system of user 2 of the dummy machine system in the second embodiment of the invention, this application program can be listed all PnP devices that the user can install and unload, thereby the user can directly call plug and play module 32 by this application program is operated, and does not realize calling plug and play module 32 by scheduler 31 and do not need to resemble first embodiment.Just, the user is when needs insert or extract PnP device, can directly pass through this application call plug and play module 32, the look-at-me of forge inserting or extracting PnP device realizes the insertion of PnP device or extracts.
Current operation system need be installed or when unloading PnP device, the user imports corresponding call instruction by the application program of PnP device, directly calls plug and play module 32.According to the call instruction from this application program, plug and play module 32 is sent interrupt instruction (inserting or extract instruction) to current operation system, and expression need be inserted into PnP device current operation system or extract from current operation system.Simultaneously, this plug and play module 32 is intercepted and captured the follow-up I/O operation to this PnP device of current operation system, finishes installation or the unloading operation of PnP device in current operation system.
As shown in Figure 5, this plug and play module 32 can comprise function allocating module 321, interrupt module 322 and equipment I/O interface 323 are set, and function is also roughly the same.
Particularly, with reference to figure 5 and Fig. 6, the method that realizes the PnP device dynamic assignment in the dummy machine system of second embodiment of the invention is described.
Current operation system need be installed or when unloading PnP device, the user imports corresponding call instruction by the application program of PnP device, directly calls the function allocating module 321 in the plug and play module 32.According to the call instruction from this application program, function allocating module 321 outputs to interrupting device module 322 with the conditional parameter of correspondence.Interrupting device module 322 is according to the conditional parameter of function allocating module output, produce corresponding look-at-me (inserting or extract instruction), expression need be inserted into PnP device current operation system or extract from current operation system, and this look-at-me sent to current operation system, expression need be inserted into PnP device current operation system or extract from current operation system.Current operation system is carried out I/O operation follow-up, that will be inserted into current operation system or PnP device is extracted from operating system according to the look-at-me of interrupting device module 322.
Here, this PnP device can be equipment of exclusively enjoying or shared device, if when exclusively enjoying equipment, it at first need be unloaded from other operating systems, and then be installed to current operation system.When if this PnP device is shared device, then only need be inserted into the operation in the current operation system.At this moment, current operation system can be shared this PnP device simultaneously with other operating systems.
Can learn from above-mentioned description, essence of the present invention is to extract or insert terminal signaling by send PnP device to different operating system, promptly forge the PnP device look-at-me, allow operating system think that this PnP device is exactly to extract or insert, automatically finish corresponding unloading or installation process then, in fact this PnP device always with the dummy machine system physical connection.Therefore, can under the situation that does not need the user to participate in or reconfigure, start the operating system, realize the Dynamic Resource Allocation for Multimedia of controlled fully PnP device.
This dummy machine system can be for based on mixed mode or based on the dummy machine system of host mode, as the Xen dummy machine system, integrated plug and play module in its virtual machine monitor, and utilize plug and play application program in the operating system, according to above-mentioned method shown in Figure 5 realize PnP device in current operation system insertion or extract operation.
According to the dynamic allocation method of dummy machine system of the present invention and PnP device, it is bad to the support of PnP device equipment effectively to solve existing dummy machine system, uses the problem of inconvenience. And, can realize convenient, the method for salary distribution flexibly according to different application scenarios, improve dummy machine system and experience to end user's user, provide a kind of realistic plan for dummy machine system to the PC promotion and application.
Simultaneously, no matter be based on host mode, also be based on the dummy machine system of mixed mode, when between different operating system, switching, do not need user's participation, automatically finish the switching of PnP device between different operating system according to strategy, convenient for users to use, improved the user experience of dummy machine system to the end user.
Claims (14)
1. dummy machine system, comprise virtual machine monitor, hardware and a plurality of operating system, it is characterized in that: this virtual machine monitor further comprises the plug and play module, be used for according to call instruction, the respective interrupt signals that produces is sent to the corresponding operating system, and by intercepting and capturing the I/O operation of this corresponding operating system, directly this I/O is acted on PnP device, or according to the plug and play standard criterion, feed back to this corresponding operating system by software simulation I/O operation and with analog result, finish the indicated processing of look-at-me.
2. dummy machine system as claimed in claim 1 is characterized in that, these a plurality of operating systems comprise servo operation and at least one operating system of user.
3. dummy machine system as claimed in claim 1 is characterized in that, this look-at-me is illustrated in installs PnP device or unload PnP device from this operating system in this operating system.
4. as each described dummy machine system of claim 1 to 3, it is characterized in that, comprise scheduler in the virtual machine monitor, this scheduler produces corresponding call instruction according to the switching command of user's input.
5. dummy machine system as claimed in claim 4 is characterized in that, this plug and play module comprises function allocating module, interrupts module and equipment I/O interface are set, wherein,
Function allocating module is exported the corresponding condition parameter according to the call instruction of scheduler;
Interruption is provided with the conditional parameter of module according to function allocating module output, and system sends look-at-me to corresponding operating;
Equipment I/O interface is intercepted and captured the I/O operation of this corresponding operating system to PnP device, directly this I/O is acted on PnP device, or, feed back to this corresponding operating system by software simulation I/O operation and with analog result according to the plug and play standard criterion.
6. as each described dummy machine system of claim 1 to 3, it is characterized in that, comprise the PnP device application program in the described operating system, the user produces call instruction by this application program.
7. dummy machine system as claimed in claim 6 is characterized in that, this plug and play module comprises function allocating module, interrupts module and equipment I/O interface are set, wherein,
The call instruction that function allocating module produces according to the PnP device application program, output corresponding condition parameter;
Interruption is provided with the conditional parameter of module according to function allocating module output, and system sends look-at-me to corresponding operating;
Equipment I/O interface is intercepted and captured the I/O operation of this corresponding operating system to PnP device, directly this I/O is acted on PnP device, or according to the plug and play standard criterion, feed back to this corresponding operating system, the processing that the complete call instruction is indicated by software simulation I/O operation and with analog result.
8. the method for a dynamic assignment PnP device is used for giving at least one operating system in a plurality of operating systems of dummy machine system with the PnP device dynamic assignment, and it comprises step:
1) receive call instruction, the respective interrupt signals of generation sends to the corresponding operating system;
2) I/O that intercepts and captures this corresponding operating system operates, directly this I/O is acted on PnP device, or, feed back to this corresponding operating system by software simulation I/O operation and with analog result according to the plug and play standard criterion, finish the indicated processing of look-at-me.
9. method as claimed in claim 8 is characterized in that, these a plurality of operating systems comprise servo operation and at least one operating system of user.
10. dummy machine system as claimed in claim 8 is characterized in that, this look-at-me is illustrated in installs PnP device or unload PnP device from this operating system in this operating system.
11., it is characterized in that this call instruction produces according to the switching command of user's input as each described method of claim 8 to 10.
12. method as claimed in claim 10 is characterized in that, step 1) comprises:
According to call instruction, output corresponding condition parameter;
According to conditional parameter, system sends look-at-me to corresponding operating.
13., it is characterized in that the user produces call instruction by the PnP device application program that comprises in this operating system as each described method of claim 8 to 10.
14. method as claimed in claim 13 is characterized in that, step 1) comprises:
According to call instruction, output corresponding condition parameter;
According to conditional parameter, system sends look-at-me to corresponding operating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510112614XA CN100428163C (en) | 2005-10-11 | 2005-10-11 | Virtual machine system and method of dynamically distributing UPNP equipment |
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| CNB200510112614XA CN100428163C (en) | 2005-10-11 | 2005-10-11 | Virtual machine system and method of dynamically distributing UPNP equipment |
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| CN1949177A true CN1949177A (en) | 2007-04-18 |
| CN100428163C CN100428163C (en) | 2008-10-22 |
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| CNB200510112614XA Expired - Fee Related CN100428163C (en) | 2005-10-11 | 2005-10-11 | Virtual machine system and method of dynamically distributing UPNP equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101276292B (en) * | 2008-05-13 | 2010-04-21 | 杭州华三通信技术有限公司 | Interrupt synthetic method and apparatus as well as modularization host computer system |
| CN101944044A (en) * | 2010-09-28 | 2011-01-12 | 凌阳科技股份有限公司 | Method and device for virtual interrupt |
| CN102103674A (en) * | 2009-12-18 | 2011-06-22 | 联想(北京)有限公司 | Equipment control method and computer |
| CN102110008A (en) * | 2009-12-29 | 2011-06-29 | 联想(北京)有限公司 | Mainboard attached equipment accessing method, virtual machine manager and computer |
| CN102779073A (en) * | 2012-07-04 | 2012-11-14 | 深圳市京华科讯科技有限公司 | Method for dynamically converting peripheral equipment between in-band and out-of-band |
| CN104808978A (en) * | 2014-01-28 | 2015-07-29 | 宏碁股份有限公司 | Method for sharing plug-and-play device and electronic device therefor |
| CN102103674B (en) * | 2009-12-18 | 2016-12-14 | 联想(北京)有限公司 | The control method of equipment and computer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852743A (en) * | 1996-07-12 | 1998-12-22 | Twinhead International Corp. | Method and apparatus for connecting a plug-and-play peripheral device to a computer |
| CN1154920C (en) * | 2000-05-19 | 2004-06-23 | 英业达股份有限公司 | Intelligent hardware installing method |
| JP3588604B2 (en) * | 2001-11-30 | 2004-11-17 | 株式会社東芝 | Electronic device and communication device switching method |
| TWI226579B (en) * | 2003-10-03 | 2005-01-11 | Inventec Corp | Plug and play method for USB device under Linux operating system |
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2005
- 2005-10-11 CN CNB200510112614XA patent/CN100428163C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101276292B (en) * | 2008-05-13 | 2010-04-21 | 杭州华三通信技术有限公司 | Interrupt synthetic method and apparatus as well as modularization host computer system |
| CN102103674A (en) * | 2009-12-18 | 2011-06-22 | 联想(北京)有限公司 | Equipment control method and computer |
| CN102103674B (en) * | 2009-12-18 | 2016-12-14 | 联想(北京)有限公司 | The control method of equipment and computer |
| CN102110008A (en) * | 2009-12-29 | 2011-06-29 | 联想(北京)有限公司 | Mainboard attached equipment accessing method, virtual machine manager and computer |
| CN102110008B (en) * | 2009-12-29 | 2015-01-28 | 联想(北京)有限公司 | Mainboard attached equipment accessing method, device, hardware equipment and computer |
| CN101944044A (en) * | 2010-09-28 | 2011-01-12 | 凌阳科技股份有限公司 | Method and device for virtual interrupt |
| CN102779073A (en) * | 2012-07-04 | 2012-11-14 | 深圳市京华科讯科技有限公司 | Method for dynamically converting peripheral equipment between in-band and out-of-band |
| CN102779073B (en) * | 2012-07-04 | 2015-11-18 | 深圳市京华科讯科技有限公司 | Be located at the method with band outer room switching at runtime in band outward |
| CN104808978A (en) * | 2014-01-28 | 2015-07-29 | 宏碁股份有限公司 | Method for sharing plug-and-play device and electronic device therefor |
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| Publication number | Publication date |
|---|---|
| CN100428163C (en) | 2008-10-22 |
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