CN113064749A - Method for controlling debugging information output at runtime stage through BIOS - Google Patents
Method for controlling debugging information output at runtime stage through BIOS Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0745—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in an input/output transactions management context
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0766—Error or fault reporting or storing
- G06F11/0775—Content or structure details of the error report, e.g. specific table structure, specific error fields
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/079—Root cause analysis, i.e. error or fault diagnosis
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/362—Software debugging
- G06F11/3644—Software debugging by instrumenting at runtime
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Abstract
The application discloses a method for controlling debugging information output in a running stage through a BIOS (basic input output System), which defines a start-stop option of a BIOS debugging mode in a BIOS menu bar in advance, and can avoid handing the control right of a system serial port to an OS (operating system) as long as the start-stop option is adjusted when the debugging is needed in the running stage, so that the BIOS can print the debugging information through the system serial port in the running stage, the defects of difficulty in debugging in the running stage and difficulty in positioning are overcome effectively, and the debugging and problem positioning time is shortened greatly. In addition, the application also provides a device, equipment and a readable storage medium for controlling the output of the debugging information at the runtime stage through the BIOS, and the technical effect of the device and the equipment corresponds to that of the method.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a method, an apparatus, a device, and a readable storage medium for controlling runtime phase debugging information output through a BIOS.
Background
The development process of BIOS (Basic Input Output System) is accompanied by a lot of debugging work, and debugging information needs to be checked through a System serial port UART (Universal Asynchronous Receiver/Transmitter), and problem analysis and positioning also need to be performed through the System serial port when some small-probability problems are encountered. However, in the current-stage mass production machine, the system serial port can only print debugging information of the PEI stage, DXE stage and BDS stage, but cannot print debugging information of the Runtime stage (Runtime stage). This is because when the System boot enters the runtime phase, the control right of the System serial port is taken over by the OS (Operating System), and all logs such as SMI (System Management Interrupts), RAS Feature (Reliability, Availability, and maintainability features) triggered under the OS cannot be printed through the serial port, which greatly increases the difficulty of the engineer in debugging and analyzing the problem.
Therefore, how to save the debugging time and improve the debugging efficiency in the BIOS development process is a problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a method, a device, equipment and a readable storage medium for controlling debugging information output in a runtime stage through a BIOS (basic input output System), so as to solve the problem that debugging information cannot be printed through a system serial port in the runtime stage, and difficulty is brought to the BIOS development process. The specific scheme is as follows:
in a first aspect, the present application provides a method for controlling runtime phase debug information output through a BIOS, including:
reading the state value of start and stop options of a BIOS debugging mode in a BIOS menu bar at the DXE stage;
storing the state value into an ACPI system description table so that ACPI equipment can conveniently acquire the state value from the ACPI system description table, and refusing to transfer the serial port control right to an OS when the state value is started;
and in the operation stage, the debugging information is printed through the serial port of the system.
Preferably, before the reading of the state value of the start-stop option of the BIOS debug mode in the BIOS menu bar, the method further includes:
and adding start-stop options of a BIOS debugging mode in a BIOS menu bar.
Preferably, before the reading of the state value of the start-stop option of the BIOS debug mode in the BIOS menu bar, the method further includes:
changing the state value of the start-stop option of the BIOS debugging mode according to the selection operation of a user on the start-stop option of the BIOS debugging mode in a BIOS menu bar;
or the like, or, alternatively,
and under the OS, changing the state value of the start-stop option of the BIOS debugging mode according to a change instruction issued by a user.
Preferably, the debugging information includes: SMI interrupt log, RAS feature log.
Preferably, after the storing the state value to the ACPI system description table so that the ACPI device obtains the state value from the ACPI system description table, the method further includes:
and when the state value is closed, the ACPI equipment gives the control right of the system serial port to the OS.
Preferably, the reading of the state value of the start/stop option of the BIOS debug mode in the BIOS menu bar includes:
and reading the state value of the start and stop option of the BIOS debugging mode in the BIOS menu bar through the first target function.
Preferably, the storing the state value to an ACPI system description table so that the ACPI device obtains the state value from the ACPI system description table includes:
storing the state value to an ACPI system description table; and transmitting the state value in the ACPI system description table to ACPI equipment through a second objective function.
In a second aspect, the present application provides an apparatus for controlling runtime phase debug information output through a BIOS, comprising:
a state reading module: the method comprises the steps of reading the state value of start and stop options of a BIOS debugging mode in a BIOS menu bar at the DXE stage;
a configuration module: the device is used for storing the state value to an ACPI system description table so that ACPI equipment can conveniently acquire the state value from the ACPI system description table, and refusing to give the control right of a system serial port to an OS when the state value is started;
an information printing module: and the debugging module is used for printing debugging information through a system serial port in a runtime stage.
In a third aspect, the present application provides an apparatus for controlling runtime phase debug information output through a BIOS, including:
a memory: for storing a computer program;
a processor: for executing the computer program to implement the method for controlling the output of runtime phase debug information by the BIOS as described above.
In a fourth aspect, the present application provides a readable storage medium having stored thereon a computer program for implementing, when executed by a processor, the method for controlling runtime phase debug information output by a BIOS as described above.
The application provides a method for controlling runtime phase debugging information output through a BIOS, which comprises the following steps: reading the state value of start and stop options of a BIOS debugging mode in a BIOS menu bar at the DXE stage; storing the state value into an ACPI system description table so that ACPI equipment can conveniently acquire the state value from the ACPI system description table, and refusing to transfer the control right of a system serial port to an OS when the state value is started; and in the operation stage, the debugging information is printed through the serial port of the system.
Therefore, the method defines the start-stop option of the BIOS debugging mode in the BIOS menu bar in advance, when debugging is needed in the running stage, the control right of the system serial port can be prevented from being handed to the OS only by adjusting the start-stop option, and the selective release of the control right of the system serial port is realized, so that the BIOS can print debugging information through the system serial port in the running stage, the defects of difficulty in debugging in the running stage and difficulty in positioning are overcome effectively, and the debugging and problem positioning time is shortened greatly.
In addition, the application also provides a device, equipment and a readable storage medium for controlling the output of the debugging information at the runtime stage through the BIOS, and the technical effect of the device and the equipment corresponds to that of the method, and the details are not repeated here.
Drawings
For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a first implementation of a method for controlling runtime phase debug information output by a BIOS according to an embodiment of the present disclosure;
fig. 2 is a schematic process diagram of a second embodiment of a method for controlling runtime phase debug information output through a BIOS according to the present application;
FIG. 3 is a functional block diagram of an embodiment of an apparatus for controlling runtime phase debug information output via a BIOS, according to the present disclosure;
fig. 4 is a schematic structural diagram of an embodiment of a device for controlling runtime phase debug information output through a BIOS according to the present application.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
All mass production machines at the present stage do not have the function of collecting logs at the operation stage, so that the debugging logs generated in the SMI interruption of BIOS registration cannot be obtained in time, and the difficulty of BIOS debugging is increased.
The application aims to provide a method, a device, equipment and a readable storage medium for controlling the output of debugging information at the runtime stage through a BIOS, so that a BIOS engineer can conveniently collect the debugging information at the runtime stage, such as an SMI interrupt log, an RAS feature log and the like at the runtime stage of a system, the debugging time in the BIOS development process is greatly shortened, and the development efficiency is improved.
Referring to fig. 1, a first embodiment of a method for controlling runtime debugging information output through a BIOS according to the present application is described below, where the first embodiment includes:
s11, reading the state value of the start and stop options of the BIOS debugging mode in the BIOS menu bar in the DXE stage;
s12, storing the state value into an ACPI system description table, so that the ACPI equipment can conveniently acquire the state value from the ACPI system description table, and refusing to transfer the serial port control right to an OS when the state value is started;
and S13, printing debugging information through the serial port of the system in the running stage.
The ACPI is called Advanced Configuration and Power Management Interface, and refers to Advanced Configuration and Power Management Interface. The System Description Table refers to a Differentiated System Description Table, which is called Differentiated System Description Table, DSDT for short. DXE, full driver execution environment.
The embodiment is applied to the starting process of the server and is realized based on the BIOS. Specifically, a start-stop option of a BIOS debugging mode is added to a BIOS menu bar, a default state value is set to off, a user is allowed to modify the default state value, and the server is restarted to take effect after the modification. As a specific implementation, the present embodiment provides the following two modifications:
changing the state value of the start-stop option of the BIOS debugging mode according to the selection operation of a user on the start-stop option of the BIOS debugging mode in a BIOS menu bar;
and in the second mode, under the OS, the state value of the start-stop option of the BIOS debugging mode is changed in an automatic mode according to a change instruction issued by a user.
And in the restarting process, reading the state value of the start-stop option of the BIOS debugging mode, and storing the state value in an ACPI system description table. Before the OS enters, the ACPI equipment sets a control source of a system serial port according to a state value in an ACPI system description table, and specifically, if the state value is starting, the control source is a BIOS; if the status value is off, the control source is the OS.
Therefore, when the state value is starting, the ACPI equipment reserves the system serial port control right of the BIOS and refuses to transfer the system serial port control right to the OS; and when the state value is closed, the ACPI equipment gives the control right of the system serial port to the OS.
Specifically, the debugging information of the Runtime phase includes UEFI Runtime Service (defined by UEFI Spec, including variable storage, RTC, etc.), SMM code, AML code of ACPI, and other codes, as well as various ACPI tables, some Reserved contents (Reserved), and other data.
According to the method for controlling the debugging information output in the runtime stage through the BIOS, the start-stop option of the BIOS debugging mode is defined in the BIOS menu bar in advance, when debugging is needed in the runtime stage, the control right of the system serial port can be prevented from being handed to the OS only by adjusting the start-stop option, therefore, the BIOS can print the debugging information through the system serial port in the runtime stage, the defects that debugging in the runtime stage is difficult and the problem is difficult to locate are effectively overcome, and the debugging time and the problem locating time are greatly shortened.
Referring to fig. 2, a second embodiment of the method for controlling runtime phase debug information output through a BIOS according to the present application is described in detail below, where the second embodiment specifically includes:
and S21, adding a start-stop option of the BIOS debugging mode in the BIOS menu bar.
The start-stop options of the BIOS debugging mode comprise two state values: closing, namely closing the serial port output in the runtime stage; and starting, namely starting serial port output in a runtime stage. The embodiment turns off the default state value, and supports manual modification in a BIOS menu bar or automatic modification under an OS through an option ID, and the server restart is effective after modification.
And S22, modifying the state value of the start and stop options of the BIOS debugging mode in the BIOS menu bar.
And S23, in the POST process, reading the state value of the start-stop option of the BIOS debugging mode through the first target function.
The first objective function is the GetVariable function.
And S24, writing the state value into the ACPI system description table, and transmitting the state value in the ACPI system description table to an ACPI device (UART) by the second objective function.
The second objective function is the ACPI Method function.
And S25, the ACPI equipment obtains the state value and judges whether UART control right needs to be submitted to the OS or not according to the state value. When the state value is starting, the UART controller is refused to be handed to the OS, otherwise, the UART controller is handed to the OS.
In the present embodiment, as shown in fig. 2, the processes of S23 and S24 are implemented based on the BIOS C language code, and the process of S25 is implemented based on the BIOS ACPI language code.
S26, if the UART control right is not handed to the OS, the BIOS prints debugging information such as SMI interrupt log and RAS feature log through UART in the runtime stage.
Therefore, in the method for controlling the output of the debugging information at the runtime stage by the BIOS according to this embodiment, the control option is added, the option is transferred to the second objective function through the ACPI system description table, and the serial port control source is set by the function, so that the selective release of the control authority of the serial port is realized, the serial port output function at the runtime stage is realized, and the BIOS debugging and the problem quick positioning are facilitated.
In the following, the device for controlling the output of the runtime phase debugging information through the BIOS according to the embodiment of the present application is introduced, and the device for controlling the output of the runtime phase debugging information through the BIOS described below and the method for controlling the output of the runtime phase debugging information through the BIOS described above may be referred to correspondingly.
As shown in fig. 3, the apparatus for controlling the output of the runtime phase debugging information through the BIOS of the present embodiment includes:
the status reading module 31: the method comprises the steps of reading the state value of start and stop options of a BIOS debugging mode in a BIOS menu bar at the DXE stage;
the configuration module 32: the device is used for storing the state value to an ACPI system description table so that ACPI equipment can conveniently acquire the state value from the ACPI system description table, and refusing to give the control right of a system serial port to an OS when the state value is started;
the information printing module 33: and the debugging module is used for printing debugging information through a system serial port in a runtime stage.
The apparatus for controlling output of runtime debugging information through BIOS of the present embodiment is used to implement the method for controlling output of runtime debugging information through BIOS, and therefore, the specific implementation manner in the apparatus can be seen in the foregoing embodiment parts of the method for controlling output of runtime debugging information through BIOS, for example, the status reading module 31, the configuration module 32, and the information printing module 33, which are respectively used to implement steps S11, S12, and S13 in the method for controlling output of runtime debugging information through BIOS. Therefore, specific embodiments thereof may be referred to in the description of the corresponding respective partial embodiments, and will not be described herein.
In addition, since the apparatus for controlling runtime phase debug information output by BIOS of this embodiment is used to implement the method for controlling runtime phase debug information output by BIOS, its role corresponds to that of the above method, and is not described herein again.
In addition, the present application further provides a device for controlling runtime phase debug information output through a BIOS, as shown in fig. 4, including:
the memory 100: for storing a computer program;
the processor 200: for executing the computer program to implement the method for controlling runtime phase debug information output by the BIOS as described above.
Finally, the present application provides a readable storage medium having stored thereon a computer program for implementing the method of controlling runtime phase debug information output by a BIOS as described above when executed by a processor.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or 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.
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 above detailed descriptions of the solutions provided in the present application, and the specific examples applied herein are set forth to explain the principles and implementations of the present application, and the above descriptions of the examples are only used to help understand the method and its core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A method for controlling debugging information output in a runtime phase through a BIOS (basic input/output System), which is characterized by comprising the following steps:
reading the state value of start and stop options of a BIOS debugging mode in a BIOS menu bar at the DXE stage;
storing the state value into an ACPI system description table so that ACPI equipment can conveniently acquire the state value from the ACPI system description table, and refusing to transfer the serial port control right to an OS when the state value is started;
and in the operation stage, the debugging information is printed through the serial port of the system.
2. The method of claim 1, wherein prior to said reading a state value for a start-stop option for a BIOS debug mode in a BIOS menu bar, further comprising:
and adding start-stop options of a BIOS debugging mode in a BIOS menu bar.
3. The method of claim 2, wherein prior to said reading the state value of the start stop option of the BIOS debug mode in the BIOS menu bar, further comprising:
changing the state value of the start-stop option of the BIOS debugging mode according to the selection operation of a user on the start-stop option of the BIOS debugging mode in a BIOS menu bar;
or the like, or, alternatively,
and under the OS, changing the state value of the start-stop option of the BIOS debugging mode according to a change instruction issued by a user.
4. The method of claim 1, wherein the debugging information comprises: SMI interrupt log, RAS feature log.
5. The method of claim 1, wherein after storing the state value to an ACPI system description table for ACPI devices to obtain the state value from the ACPI system description table, further comprising:
and when the state value is closed, the ACPI equipment gives the control right of the system serial port to the OS.
6. The method of any of claims 1 to 5, wherein reading the state value of the start/stop option of the BIOS debug mode in the BIOS menu bar comprises:
and reading the state value of the start and stop option of the BIOS debugging mode in the BIOS menu bar through the first target function.
7. The method of claim 6, wherein storing the state value to an ACPI system description table to facilitate ACPI devices obtaining the state value from the ACPI system description table comprises:
storing the state value to an ACPI system description table; and transmitting the state value in the ACPI system description table to ACPI equipment through a second objective function.
8. An apparatus for controlling runtime phase debug information output via a BIOS, comprising:
a state reading module: the method comprises the steps of reading the state value of start and stop options of a BIOS debugging mode in a BIOS menu bar at the DXE stage;
a configuration module: the device is used for storing the state value to an ACPI system description table so that ACPI equipment can conveniently acquire the state value from the ACPI system description table, and refusing to give the control right of a system serial port to an OS when the state value is started;
an information printing module: and the debugging module is used for printing debugging information through a system serial port in a runtime stage.
9. An apparatus for controlling runtime phase debug information output via a BIOS, comprising:
a memory: for storing a computer program;
a processor: for executing the computer program to implement the method of controlling runtime phase debug information output by a BIOS as claimed in any of claims 1 to 7.
10. A readable storage medium, on which a computer program is stored, the computer program being adapted to implement the method of controlling runtime phase debug information output by a BIOS according to any of claims 1 to 7 when executed by a processor.
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| CN107832179A (en) * | 2017-11-27 | 2018-03-23 | 郑州云海信息技术有限公司 | A kind of PCIe Error Enabling method of testings |
| CN108874606A (en) * | 2018-06-29 | 2018-11-23 | 郑州云海信息技术有限公司 | A kind of control device and control method of switch BIOS AccessPort function |
| CN109582518A (en) * | 2018-12-06 | 2019-04-05 | 广东浪潮大数据研究有限公司 | It is a kind of for the control method of BIOS debugging mode, device and equipment |
| CN110781053A (en) * | 2019-09-29 | 2020-02-11 | 苏州浪潮智能科技有限公司 | Method and device for detecting memory degradation errors |
| CN111708662A (en) * | 2020-05-26 | 2020-09-25 | 新华三技术有限公司 | Debugging method and device |
| CN111767184A (en) * | 2020-09-01 | 2020-10-13 | 苏州浪潮智能科技有限公司 | Fault diagnosis method and device, electronic equipment and storage medium |
| CN112463492A (en) * | 2020-12-04 | 2021-03-09 | 苏州浪潮智能科技有限公司 | Method, system, equipment and medium for processing correctable errors of memory |
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