CN113010407A - System information acquisition method, device and system - Google Patents
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Abstract
The method comprises the steps of sending control information to Guest OS through a preset hard interrupt channel after the control information received by Host OS is obtained, controlling the Guest OS to obtain target Guest OS system information according to the control information and storing the target Guest OS system information to a preset shared memory area, and controlling the Host OS to read the target Guest OS system information stored in the preset shared memory area. The method and the device transmit the control information through the preset hard interrupt channel, and simultaneously transmit the target Guest OS system information through the preset shared memory area, so that the Host OS can acquire the Guest OS system information without depending on a network, and the effective expansion of a debugging process is ensured.
Description
Technical Field
The invention belongs to the technical field of computers, and particularly relates to a system information acquisition method, device and system.
Background
Hypervisor, an intermediate software layer running between the underlying physical server and the operating system, allows multiple operating systems to share hardware. The operating system of the Hypervisor for executing one or more virtual machines is called Host OS (Host system), and the operating system corresponding to the corresponding one or more virtual machines is called Guest OS (Guest system).
In practical application, Guest OS is often required to be debugged, commonly used debugging means are basically based on ADB (Android Debug Bridge) or other debugging terminal programs, and the debugging means are realized based on virtual network transmission essentially, that is, system information of Guest OS is acquired through network connection so as to complete debugging. Therefore, once a system-level fault occurs inside the Guest OS, such as a network driver fault, an interlock of the operating system itself, and the like, and the network cannot work normally, an information interaction channel is lost between the Guest OS and the ADB and other debugging programs, the system information of the Guest OS cannot be acquired by the conventional debugging means, and the Guest OS cannot be debugged naturally.
Disclosure of Invention
In view of this, the present invention aims to provide a method, an apparatus and a server for acquiring system information, so that the acquisition of Guest OS system information is not dependent on a network any more, and the specific scheme is as follows:
in a first aspect, the present invention provides a method for acquiring system information, including:
acquiring control information received by a Host OS;
sending the control information to a Guest OS through a preset hard interrupt channel;
controlling the Guest OS to acquire target Guest OS system information according to the control information and storing the target Guest OS system information to a preset shared memory area;
and controlling the Host OS to read the target Guest OS system information stored in the preset shared memory area.
Optionally, the sending the control information to the guest os through a preset hard interrupt channel includes:
after the control information is acquired, triggering a preset hard interrupt signal;
and sending the preset hard interrupt information number to Guest OS through a preset hard interrupt channel, wherein the preset hard interrupt signal comprises the control information.
Optionally, the controlling the Guest OS to obtain target Guest OS system information according to the control information includes:
controlling the Guest OS to perform the following operations:
determining a command control word corresponding to the control information;
determining Guest OS system information corresponding to the command control words to obtain target Guest OS system information;
and acquiring the target Guest OS system information.
Optionally, the obtaining the target Guest OS system information includes:
extracting field information of a target field in the command control word;
determining an acquisition mode of Guest OS system information according to the field information;
and acquiring target Guest OS system information in the Guest OS system according to the acquisition mode.
Optionally, the obtaining mode includes one of obtaining according to a hard interrupt context and obtaining according to a process context.
Optionally, the method for acquiring system information according to the first aspect of the present invention further includes:
and controlling the Guest OS to acquire system information of the specified Guest OS and storing the system information in the preset shared memory area.
Optionally, the process of setting the preset shared memory area includes:
and after the Hypervisor system is started, allocating a memory space according to a preset rule to obtain the preset shared memory area.
Optionally, the process of setting the preset shared memory area further includes:
and after the control information received by the Host OS is obtained, allocating a memory space according to a preset rule to obtain the preset shared memory area.
In a second aspect, the present invention provides a system information acquiring apparatus, including:
an acquisition unit configured to acquire control information received by a Host OS;
the sending unit is used for sending the control information to Guest OS through a preset hard interrupt channel;
the first control unit is used for controlling the Guest OS to acquire target Guest OS system information according to the control information and storing the target Guest OS system information to a preset shared memory area;
and the second control unit is used for controlling the Host OS to read the target Guest OS system information stored in the preset shared memory area.
In a third aspect, the present invention provides a server, comprising: a memory and a processor; the memory stores a program adapted to be executed by the processor to implement the system information acquisition method according to any one of the first aspect of the present invention.
Based on the technical scheme, the system information obtaining method provided by the invention is characterized in that after the control information received by the Host OS is obtained, the control information is sent to the Guest OS through the preset hard interrupt channel, then the Guest OS is controlled to obtain the target Guest OS system information according to the control information and store the target Guest OS system information to the preset shared memory area, and finally the Host OS is controlled to read the target Guest OS system information stored in the preset shared memory area. According to the system information acquisition method provided by the invention, the control information is transmitted through the preset hard interrupt channel, the target Guest OS system information is acquired according to the control information, and meanwhile, the transmission of the target Guest OS system information is realized through the preset shared memory area, so that the Host OS can acquire the Guest OS system information without depending on a network, and further, other debugging programs can acquire the system information of the Guest OS through the Host OS, and the effective expansion of the debugging process is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a system information obtaining method according to an embodiment of the present invention;
fig. 2 is a block diagram of a system information acquiring apparatus according to an embodiment of the present invention;
fig. 3 is a block diagram of another system information acquisition apparatus according to an embodiment of the present invention;
fig. 4 is a block diagram of a further system information acquiring apparatus according to an embodiment of the present invention;
fig. 5 is a block diagram of a further system information acquisition apparatus according to an embodiment of the present invention;
fig. 6 is a block diagram of a server according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a system information obtaining method according to an embodiment of the present invention, where the method is applicable to an electronic device capable of performing data processing, and in particular, to a server running a Hypervisor system; referring to fig. 1, a method for acquiring system information according to an embodiment of the present invention may include:
s100, acquiring the control information received by the Host OS.
The control information mentioned in the embodiment of the present invention may be sent to the Host OS by a debugger through a debugging program, or may be preset in the Host OS with a control information input interface through which the debugger inputs the control information, or may be implemented in other manners capable of implementing control information input. However, no matter what control information input mode is adopted, the control information is received through the Host OS, and the situation that the control information cannot be input when the Guest OS has a fault is avoided.
Optionally, the specific content of the control information may refer to a content input when the Guest OS is debugged in the prior art, and the embodiment of the present invention does not limit the content of the specific control information input by the debugger.
And S110, sending control information to Guest OS through a preset hard interrupt channel.
After obtaining the control information received by the Host OS, the control information may be sent to the Guest OS. The embodiment of the invention realizes the information transmission process by presetting the hard interrupt channel.
Specifically, after the control information input by the debugging personnel is acquired, a preset hard interrupt signal can be triggered, and the preset hard interrupt signal also contains corresponding control information. The triggered preset hard interrupt signal can be sent to Guest OS through a preset hard interrupt channel. The establishment of the preset hard interrupt channel can be realized by referring to the mode in the prior art, and the establishment mode of the preset hard interrupt channel is not limited by the invention.
Optionally, as a specific optional implementation manner, in an actual application, the operations corresponding to the steps of S100 and S110 may be integrated together as a module, a unit, or a function in the program. For example, the two modules may be combined into a control information input module, and meanwhile, the acquisition of the control information and the transmission of the preset hard interrupt signal are realized. Accordingly, other steps mentioned in the embodiments of the present invention may also be set as corresponding modules or units, so as to facilitate management and upgrade of program contents, which is not repeated in the embodiments of the present invention.
And S120, controlling the Guest OS to acquire the target Guest OS system information according to the control information and storing the target Guest OS system information to a preset shared memory area.
Optionally, after the control information is transmitted to the Guest OS side, the Guest OS performs the following operation to obtain Guest OS system information according to the obtained control information. Specifically, after the control information in the preset hard interrupt signal is obtained, the control information is analyzed, and a command control word corresponding to the control information is determined, that is, the control command to be executed is obtained.
Optionally, in the embodiment of the present invention, a first mapping relationship is preset, and a corresponding relationship between the control information and the command control word is recorded in the first preset mapping relationship. After the control information is obtained, the first mapping relation is called, the corresponding relation recorded in the first preset relation is inquired, and the command control word corresponding to the obtained control information can be directly determined. It is contemplated that other ways of determining the command control word corresponding to the obtained control information may be used without departing from the scope of the present invention.
Optionally, the embodiment of the present invention further presets a second mapping relationship, where a corresponding relationship between the command control word and Guest OS system information that needs to be correspondingly obtained is recorded in the second mapping relationship. Therefore, after the command control word is determined, the Guest OS system information corresponding to the obtained command control word can be determined by calling and inserting the second mapping relation, and the corresponding Guest OS system information is used as the target Guest OS system information.
Optionally, considering that the data size of the Guest OS system information is relatively large, in the embodiment of the present invention, the Guest OS may be controlled to obtain the target Guest OS system information according to the control information input by the debugging personnel, and may also be controlled to obtain some specified Guest OS system information.
Specifically, a corresponding system information entry interface is preset in the Guest OS, each module or unit in the Guest OS can access the corresponding interface, and the system information of the module and the unit is fed back through the corresponding interface, and finally the Guest OS summarizes the obtained information to obtain a final system operation log. Of course, the corresponding information obtaining module may also be preset, the system information of the corresponding module and the corresponding unit may be actively obtained through each interface, and the final system log may also be generated after the summary is completed.
According to the content, at least two ways can be used for acquiring Guest OS system information on the Guest OS side, wherein one way is to acquire the appointed system information through a preset interface; and secondly, acquiring system target system information according to the acquired control information. It is conceivable that the target system information acquired according to the second method may include the specific system information acquired in the first method.
Further, in consideration of the process of acquiring Guest OS system information, the Guest OS may be in a normal operating state or an abnormal state of the Guest OS system. Therefore, the acquisition of Guest OS system information can be realized by adopting two modes, and the acquisition of information in the Guest OS normal running state can be acquired according to the hard interrupt context, so that the influence caused by the original service of the most system is avoided; and for the case that Guest OS is in abnormal state, it can be obtained according to the process context.
Specifically, for which mode is specifically selected, corresponding field information may be added to the command control word, and it may be directly determined, according to the field information, which mode is used to obtain Guest OS system information. After the command control word corresponding to the control information is obtained, field information of a target field in the command control word is extracted, then an acquisition mode of Guest OS system information is determined according to the field information, and the target Guest OS system information in the Guest OS system is acquired according to the finally determined acquisition mode.
After the target Guest OS system information is obtained, the Guest OS can be controlled to store the target Guest OS system information in the preset shared memory area.
Optionally, in consideration that reliable information interaction with other programs may not be performed when the Guest OS fails, the embodiment of the present invention provides a method based on a preset shared memory area, so as to solve a problem of system information transmission. As the name suggests, the preset shared memory area provided by the embodiment of the present invention is visible to both Guest OS and Host OS, and both of them can access to perform data read-write operation.
Optionally, the setting of the preset shared memory area may include at least two setting occasions, one of which is to immediately allocate a memory space according to a preset rule after the Hypervisor system is started; and secondly, after the control information received by the Host OS is acquired, namely the debugging process is started, the memory space is distributed according to the preset rule. As an optional implementation manner, the preset rule may be that a memory area of a fixed address is determined as a preset shared memory area, an area in a memory may be temporarily designated as the preset shared memory area according to a system operation condition, and any manner in which the designated memory area can be shown as the preset shared memory area is optional, and the present invention also belongs to the protection scope of the embodiments of the present invention on the premise of not exceeding the core idea of the present invention.
Optionally, for setting the preset shared memory area, the Host OS is selected to perform the setting, and after the setting is completed, the preset shared memory area is mapped to the guest OS side, as long as the guest OS and the Host OS can share the memory area, which is not limited in the embodiment of the present invention.
And S130, controlling the Host OS to read the target Guest OS system information stored in the preset shared memory area.
After controlling the Guest OS to store the target Guest OS system information in the preset shared memory area, the Host OS can be controlled to read the target Guest OS system information stored in the preset shared memory area, and the Guest OS system information obtaining process is completed.
As described above, most of the Guest OS debugging process is completed based on third-party debugging software, so after the Host OS obtains the target Guest OS system information, the obtained information can be sent to the third-party debugging software, and the third-party debugging software is used for completing the analysis and debugging of Guest OS based on the obtained system information.
Optionally, after the Guest OS completes writing of the target Guest OS system information in the preset shared memory region, a notification message may be sent to the Host OS, so that the Host OS executes a read operation according to the obtained notification message.
In summary, according to the system information obtaining method provided by the embodiment of the present invention, the control information is transmitted through the preset hard interrupt channel, the target Guest OS system information is obtained according to the control information, and meanwhile, the target Guest OS system information is transmitted through the preset shared memory area, so that the Host OS can obtain the Guest OS system information without depending on the network, and further, other debugging programs can obtain the system information of the Guest OS through the Host OS, thereby ensuring effective deployment of the debugging process.
The system information acquisition device described below may be regarded as a functional module architecture that needs to be set in the central device to implement the system information acquisition method provided by the embodiment of the present invention; the following description may be cross-referenced with the above.
Fig. 2 is a block diagram of a system information acquiring apparatus according to an embodiment of the present invention, and referring to fig. 2, the apparatus may include:
an acquisition unit 10 configured to acquire control information received by a Host OS;
a sending unit 20, configured to send the control information to a Guest OS through a preset hard interrupt channel;
the first control unit 30 is configured to control the Guest OS to acquire target Guest OS system information according to the control information and store the target Guest OS system information in a preset shared memory region;
a second control unit 40, configured to control the Host OS to read the target Guest OS system information stored in the preset shared memory area.
Optionally, the sending unit 20 is configured to, when sending the control information to the Guest OS through a preset hard interrupt channel, specifically include:
after the control information is acquired, triggering a preset hard interrupt signal;
and sending the preset hard interrupt information number to GuestOS through a preset hard interrupt channel, wherein the preset hard interrupt signal comprises the control information.
Optionally, the first control unit 30 is configured to, when controlling the Guest OS to obtain the target Guest OS system information according to the control information, specifically include:
controlling the Guest OS to perform the following operations:
determining a command control word corresponding to the control information;
determining Guest OS system information corresponding to the command control words to obtain target Guest OS system information;
and acquiring the target Guest OS system information.
Optionally, the first control unit 30 is configured to, when acquiring the target Guest OS system information, specifically include:
extracting field information of a target field in the command control word;
determining an acquisition mode of Guest OS system information according to the field information;
and acquiring target Guest OS system information in the Guest OS system according to the acquisition mode.
Optionally, the obtaining mode includes one of obtaining according to a hard interrupt context and obtaining according to a process context.
Optionally, referring to fig. 3, fig. 3 is another system information obtaining apparatus provided in the embodiment of the present invention, and on the basis of the embodiment shown in fig. 2, the apparatus further includes:
and a third control unit 50, configured to control the Guest OS to obtain system information of a specified Guest OS, and store the system information in the preset shared memory area.
Optionally, referring to fig. 4, fig. 4 is a further system information obtaining apparatus provided in the embodiment of the present invention, and on the basis of the embodiment shown in fig. 2, the apparatus further includes:
the first setting unit 60 is configured to allocate a memory space according to a preset rule after the Hypervisor system is started, so as to obtain the preset shared memory region.
Optionally, referring to fig. 5, fig. 5 is a further system information acquiring apparatus provided in an embodiment of the present invention, and on the basis of the embodiment shown in fig. 2, the apparatus further includes:
a second setting unit 70, configured to allocate a memory space according to a preset rule after the control information received by the Host OS is obtained, so as to obtain the preset shared memory region.
Optionally, fig. 6 is a block diagram of a server according to an embodiment of the present invention, which is shown in fig. 6, and may include: at least one processor 100, at least one communication interface 200, at least one memory 300, and at least one communication bus 400;
in the embodiment of the present invention, the number of the processor 100, the communication interface 200, the memory 300, and the communication bus 400 is at least one, and the processor 100, the communication interface 200, and the memory 300 complete the communication with each other through the communication bus 400; it is clear that the communication connections shown by the processor 100, the communication interface 200, the memory 300 and the communication bus 400 shown in fig. 6 are only optional;
optionally, the communication interface 200 may be an interface of a communication module, such as an interface of a GSM module;
the processor 100 may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the present invention.
The memory 300, which stores application programs, may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.
The processor 100 is specifically configured to execute an application program in the memory to implement the steps of the system information obtaining method in any of the embodiments.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A system information acquisition method is characterized by comprising the following steps:
acquiring control information received by a Host OS;
sending the control information to a Guest OS through a preset hard interrupt channel;
controlling the Guest OS to acquire target Guest OS system information according to the control information and storing the target Guest OS system information to a preset shared memory area;
and controlling the Host OS to read the target Guest OS system information stored in the preset shared memory area.
2. The method for acquiring system information according to claim 1, wherein the sending the control information to the Guest OS through a preset hard interrupt channel includes:
after the control information is acquired, triggering a preset hard interrupt signal;
and sending the preset hard interrupt information number to Guest OS through a preset hard interrupt channel, wherein the preset hard interrupt signal comprises the control information.
3. The method according to claim 1, wherein the controlling the Guest OS to acquire target Guest OS system information according to the control information includes:
controlling the Guest OS to perform the following operations:
determining a command control word corresponding to the control information;
determining Guest OS system information corresponding to the command control words to obtain target Guest OS system information;
and acquiring the target Guest OS system information.
4. The method according to claim 3, wherein the acquiring the target Guest OS system information includes:
extracting field information of a target field in the command control word;
determining an acquisition mode of Guest OS system information according to the field information;
and acquiring target Guest OS system information in the Guest OS system according to the acquisition mode.
5. The system information acquisition method according to claim 4, wherein the acquisition manner includes one of acquisition in terms of a hard interrupt context and acquisition in terms of a process context.
6. The system information acquisition method according to claim 1, further comprising:
and controlling the Guest OS to acquire system information of the specified Guest OS and storing the system information in the preset shared memory area.
7. The system information acquisition method according to any one of claims 1 to 6, wherein the process of setting the preset shared memory region includes:
and after the Hypervisor system is started, allocating a memory space according to a preset rule to obtain the preset shared memory area.
8. The method according to claim 7, wherein the setting of the preset shared memory area further includes:
and after the control information received by the Host OS is obtained, allocating a memory space according to a preset rule to obtain the preset shared memory area.
9. A system information acquisition apparatus, comprising:
an acquisition unit configured to acquire control information received by a Host OS;
the sending unit is used for sending the control information to Guest OS through a preset hard interrupt channel;
the first control unit is used for controlling the Guest OS to acquire target Guest OS system information according to the control information and storing the target Guest OS system information to a preset shared memory area;
and the second control unit is used for controlling the Host OS to read the target Guest OS system information stored in the preset shared memory area.
10. A server, comprising: a memory and a processor; the memory stores a program adapted to be executed by the processor to implement the system information acquisition method according to any one of claims 1 to 8.
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