CN117311890A - Picture display method and device in starting process of server - Google Patents

Picture display method and device in starting process of server Download PDF

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Publication number
CN117311890A
CN117311890A CN202311608877.4A CN202311608877A CN117311890A CN 117311890 A CN117311890 A CN 117311890A CN 202311608877 A CN202311608877 A CN 202311608877A CN 117311890 A CN117311890 A CN 117311890A
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display
root bridge
server
bus
display device
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CN202311608877.4A
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CN117311890B (en
Inventor
田牧青
李博
张炳会
宁兆男
孙秀强
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Suzhou Metabrain Intelligent Technology Co Ltd
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Suzhou Metabrain Intelligent Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/451—Execution arrangements for user interfaces
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
    • G06F11/324—Display of status information
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping
    • G06F9/4406—Loading of operating system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping
    • G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Digital Computer Display Output (AREA)

Abstract

The application provides a picture display method and device in a server starting process, and relates to the technical field of computers, wherein the method comprises the following steps: reading at least one root bridge register on a server under the condition that the starting process of the server is detected to be in a PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code. The method and the device realize the output screen display in the early stage (PEI stage) of the starting process, reduce the black screen time, optimize the user experience, display the execution node and the problem of the starting code, and facilitate the test, the factory and the user positioning to solve the problem.

Description

Picture display method and device in starting process of server
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a method and an apparatus for displaying a picture in a server startup process.
Background
In the starting process of the server, the bus equipment enumerates and allocates resources in the BDS stage, and the enumerated equipment is matched and driven. And the bus hardware equipment can be normally used through the loaded driving interface. The display device is used as a bus device, and the display picture can be output to a screen only after enumeration and loading of a drive in the BDS stage.
However, in the above method, after the start key is pressed, the screen connected to the server is in a black screen state in a long time before the BDS stage, and the user cannot determine the state of the current server, so that the user generates waiting anxiety in the process of waiting for service start, thereby reducing the user satisfaction. Therefore, an effective solution is needed to solve the above-mentioned problems.
Disclosure of Invention
The purpose of the application is to provide a picture display method and device in a server starting process, which are used for solving the defects of low user satisfaction and a black screen time process of a screen after the server is started.
The application provides a picture display method in a server starting process, which comprises the following steps:
reading at least one root bridge register on a server under the condition that the starting process of the server is detected to be in a PEI phase;
screening at least one display device from bus devices associated with each root bridge register;
and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code.
Optionally, the reading at least one root bridge register on the server includes:
Determining platform characteristics of a central processing unit platform corresponding to the server;
determining a reading mode of at least one root bridge register on the server according to the platform characteristics;
and respectively reading each root bridge register according to each reading mode to obtain the state information and the configuration information of each root bridge register.
Optionally, the screening at least one display device from the bus devices associated with each root bridge register includes:
for each root bridge register, configuring a first configuration space of the root bridge register according to state parameters and configuration information of the root bridge register;
at least one display device is screened out of the bus devices associated with each root bridge register based on the first configuration space of each root bridge register.
Optionally, under the condition of loading the display driver, before the display device is called to display the picture so as to show the execution stage of the start code, the method further includes:
acquiring resource allocation and control configuration rules of a central processing unit platform corresponding to the server;
configuring a second configuration space of each display device based on the resource allocation and control configuration rule, and allocating a resource space for each display device;
Correspondingly, under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code, and the method comprises the following steps:
under the condition of loading a display driver, determining display information, wherein the display information characterizes an execution stage of a starting code;
writing the display information into a shared space of each second configuration space based on a driving interface;
for each display device, calling the display device to read the display information from the shared space corresponding to the display device;
and for each display device, calling the display device to fill pixels into the resource space of the display device based on the display information, so that the display device displays a picture to show the execution stage of the starting code.
Optionally, the screening at least one display device from the bus devices associated with each root bridge register includes:
reading display options of a display configuration interface, wherein the display configuration interface is used for configuring display output types;
determining a display output type according to the display options;
and screening at least one display device corresponding to the display output type from bus devices associated with each root bridge register.
Optionally, the display output type is an on-board output type or a graphics card display output type;
correspondingly, the screening at least one display device corresponding to the display output type from the bus devices associated with each root bridge register comprises the following steps:
under the condition that the display output type is an on-board output type, video graphic array equipment is screened out from bus equipment associated with each root bridge register and used as display equipment;
and under the condition that the display output type is the display output type of the display card, at least one bus display card is selected from the bus devices associated with the root bridge registers and is used as the display device.
Optionally, in the case that the display output type is a graphics card display output type, at least one bus graphics card is screened from bus devices associated with each root bridge register, and the method includes:
judging whether a bus display card exists in bus equipment associated with each root bridge register under the condition that the display output type is a display card display output type;
if yes, at least one bus display card is screened out from the bus devices associated with the root bridge registers and is used as display devices.
Optionally, after determining whether the bus display card exists in the bus device associated with each root bridge register, the method further includes:
if not, the video graphic array equipment is screened out from the bus equipment associated with each root bridge register and is used as display equipment.
Optionally, the screening at least one bus graphic card from the bus devices associated with each root bridge register as a display device includes:
reading the switch state of each initial bus display card in the display configuration interface;
and screening out the target bus display card with the switch state being the open state from the bus equipment associated with each root bridge register as display equipment.
Optionally, before reading the display options of the display configuration interface, the method further includes:
receiving and responding to an interface display instruction, and displaying the display configuration interface;
receiving a first setting instruction aiming at the display configuration interface, wherein the first setting instruction carries a display output type;
and setting display options of the display configuration interface according to the display output type.
Optionally, before the reading the switch state of each initial bus graphic card in the display configuration interface, the method further includes:
Receiving a second setting instruction aiming at the display configuration interface, wherein the second setting instruction carries the switching parameters of each initial bus display card;
and setting the switching state of each initial bus display card in the display configuration interface according to the switching parameters of each initial bus display card.
Optionally, the method further comprises:
and clearing the configuration of each root bridge register under the condition that the starting process of the server is detected to be in the BDS stage.
The application also provides a picture display device in the starting process of the server, which comprises the following steps:
a reading module configured to read at least one root bridge register on a server if it is detected that a startup process of the server is in a PEI phase;
a screening module configured to screen at least one display device from bus devices associated with each root bridge register;
and the display module is configured to call each display device to display a picture under the condition of loading the display driver so as to show the execution stage of the starting code.
The present application also provides a computer program product comprising computer programs/instructions which when executed by a processor implement the steps of a method of displaying a picture during a server start-up as described in any of the above.
The application also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of the picture display method in the starting process of any one of the servers.
The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a method for displaying a picture during a server start-up as described in any of the above.
According to the picture display method and device in the starting process of the server, at least one root bridge register on the server is read under the condition that the starting process of the server is detected to be in the PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code. The method and the device realize the output screen display in the early stage (PEI stage) of the starting process, reduce the black screen time, optimize the user experience, display the execution node and the problem of the starting code, and facilitate the test, the factory and the user positioning to solve the problem.
Drawings
In order to more clearly illustrate the technical solutions of the present application or the prior art, the following description will briefly introduce the drawings used in the embodiments or the description of the prior art, and it is obvious that, in the following description, the drawings are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for displaying a screen during a startup process of a server according to the present application;
FIG. 2 is a second flowchart of a method for displaying a frame during a startup process of a server according to the present application;
FIG. 3 is a third flow chart of a method for displaying a frame during a startup process of the server provided by the present application;
fig. 4 is a schematic structural diagram of a screen display device in a server startup process provided in the present application;
fig. 5 is a schematic structural diagram of an electronic device provided in the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is apparent that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms "first," "second," and the like in the description of the present application, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. In addition, "and/or" in the specification means at least one of the connected objects, and the character "/", generally means a relationship in which the associated objects are one kind of "or".
First, related knowledge related to the present application will be described.
ROM (Read-Only Memory), i.e. Read-Only Memory.
BIOS (Basic Output and Input System) it is a set of programs solidified on a ROM chip on the main board of computer, and it can save the most important programs of basic input and output, self-checking program after starting up and system self-starting up program of computer, and it has specific information for reading and writing system settings.
UEFI (Unified Extensible Firmware Interface), i.e. unified extensible firmware interface.
BMC (Baseboard Management Controller), i.e. the baseboard management controller of the server.
VGA (Video Graphics Array), i.e. video graphics array, is a standard display interface and is widely used in the video and computer fields.
SEC (Security Phase), the security verification phase during BIOS startup.
PEI (Pre-EFI Initialization), the EFI Pre-initialization phase during BIOS boot.
DXE (Driver Execution Environment), i.e., the drive execution environment during BIOS startup.
BDS (Boot Device Selection), i.e. boot device selection during BIOS boot.
TSL (Transient System Load), the first phase of operating system Loader (OS Loader) execution during BIOS boot.
RT (Run Time), which refers to the phase of transfer of control from the UEFI kernel to the OS Loader.
AL (After Life) in this stage, if the system (hardware or software) encounters a catastrophic error, the system firmware needs to provide error handling and disaster recovery mechanisms.
PCIe (Peripheral Component Interconnect Express) is a high-speed serial computer expansion bus standard, hereinafter referred to as bus.
The Root Bridge register (Root Bridge) is a part of the PCIe controller, and mainly completes enumeration, configuration and information transmission of the downstream devices of the PCIe controller.
The BIOS is a set of programs solidified on a ROM chip on the main board in the computer, and stores the most important power-on self-test, hardware initialization program, service program of the bottom layer of the system, etc. UEFI is a new generation BIOS with more powerful functions, and is displayed in a graphic image mode, so that a user can operate more conveniently.
The initiation of the UEFI system follows the UEFI platform initialization standard. UEFI may be divided into 7 phases from power up to power down: SEC (security verification) - > PEI (EFI pre-initialization) - > DXE (drive execution environment) - > BDS (boot device select) - > TSL (operating system loading pre-period) - > RT (Run Time) - > AL (system disaster recovery period).
At present, the UEFI graphic image display on the server is to output the UEFI graphic image to a screen for display after initializing the PCIe display device in the BDS stage. The graphic image display data packets are very large and are refreshed frequently. PCIe is a high-speed serial computer expansion bus standard, where connected devices allocate a single-shared channel bandwidth, mainly supporting functions such as active power management, error reporting, end-to-end reliability transmission, hot plug, and quality of service. The display device on the computer transmits data over the PCIe bus, which is a PCIe device.
The display output interface on the server mainly has two aspects, namely, the VGA interface of the on-board BMC is connected to the BMC chip by the CPU through a PCIe bus, and display data is output to a screen connected with the VGA display interface of the BMC chip. And secondly, PCIe display card equipment is connected with the CPU through a PCIe slot inserted in the server to acquire display data output.
With the rapid development of servers, the requirements on the performance of the servers are higher and higher, and the requirements on indexes except the performance are also higher and higher. Each large vendor attempts to build a perfect server to meet the various needs of the customer. While developing functionality is also more focused on user experience, any minor bad experience may allow the customer to decide not to continue purchasing servers of the same brand.
In the starting process of the server, the PCIE device enumerates and allocates resources in the BDS stage, and the enumerated devices are matched and driven. Through the loaded driving interface, the user can normally use the PCIe hardware device. The same display device is used as PCIe device, and the display picture can be output to the screen only after enumeration and loading of the driver in the BDS stage.
However, the following problems exist in the display scheme in the starting process of the original server:
1) After a start key is pressed, a screen connected to a server is in a black screen state for a long time, and whether the start is down or not and where a start code is executed cannot be judged; the execution process cannot be intuitively displayed, and waiting anxiety is easily generated by a user in the starting process of a longer server.
2) The lack of output control over the display screen of the display device cannot control from which device the screen is output by the user, and at the same time, the display device outputs the screen simultaneously, so that the power consumption of the server is increased, and the running cost of the device is increased.
Therefore, the application provides a picture display method and device in the starting process of a server, wherein at least one root bridge register on the server is read under the condition that the starting process of the server is detected to be in a PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code. The method and the device realize the output screen display in the early stage (PEI stage) of the starting process, reduce the black screen time, optimize the user experience, display the execution node and the problem of the starting code, and facilitate the test, the factory and the user positioning to solve the problem.
The method for displaying the picture in the starting process of the server provided by the embodiment of the application is described in detail below by means of specific embodiments and application scenes thereof with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a method for displaying a picture in a server startup process provided in the present application. As shown in fig. 1, the method for displaying a picture in a server startup process according to the embodiment of the present application may include the following steps 101 and 103:
step 101: and reading at least one root bridge register on the server under the condition that the starting process of the server is detected to be in the PEI phase.
Specifically, after the server is powered on, the server starts to enter a startup process, firstly enters a SEC phase, namely, a security verification phase is performed, and after the security verification is completed, the startup process enters a PEI phase, namely, an EFI early initialization phase.
In the event that security verification is detected to be complete or the EFI begins to initiate in the early stage, the server boot process is indicated to enter the PEI phase. After entering the PEI phase, the basic functions and the memory of the CPU of the server are initially completed, and the BIOS starts to enter the C language environment, and at this time, each Root Bridge register connected to the server can be read.
Step 102: at least one display device is screened out of the bus devices associated with each root bridge register.
Specifically, multiple PCIe devices are suspended under each Root Bridge register, i.e., multiple bus devices are associated with each Root Bridge register. And traversing each PCIe device under the Root Bridge register under a certain range, and searching for and displaying the PCIe display device, namely screening out at least one display device.
Display devices fall into two main categories: VGA display output of BMC on a server main board, namely video graphic array equipment, is used as an on-board output interface; and secondly, the display card inserted in the PCIe slot displays output, namely a bus display card (PCIe display card), and one or more PCIe display cards can be inserted in the PCIe slot.
For example, if the display device is a VGA, traversing each PCIe device under the Root Bridge register under a certain range, and finding one VGA altogether.
For example, if the display device is a PCIe display card, traversing each PCIe device under the Root Bridge register under a certain range, and finding multiple PCIe display cards altogether.
Step 103: and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code.
After the display device is determined, a simplified display driver is loaded to start a display function, namely, after initialization of the display device in the PEI phase is completed, a character display interface is called, and a node for executing the start code, namely, an execution phase of the start code, is output to a screen through the display device, namely, image display is achieved.
According to the picture display method in the starting process of the server, at least one root bridge register on the server is read under the condition that the starting process of the server is detected to be in the PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code. The method and the device realize the output screen display in the early stage (PEI stage) of the starting process, reduce the black screen time, optimize the user experience, display the execution node and the problem of the starting code, and facilitate the test, the factory and the user positioning to solve the problem.
In one or more optional embodiments of the present application, the reading at least one root bridge register on the server may be implemented as follows:
Determining platform characteristics of a central processing unit platform corresponding to the server;
determining a reading mode of at least one root bridge register on the server according to the platform characteristics;
and respectively reading each root bridge register according to each reading mode to obtain the state information and the configuration information of each root bridge register.
Specifically, the platform characteristics of the CPU platform are CPU platform characteristics. Different CPU platform characteristics can affect the way the Root Bridge registers are read. In order to ensure that the Root Bridge register can be read quickly and accurately, the characteristics of the CPU platform can be determined first, namely, the platform characteristics of the CPU platform corresponding to the server can be determined.
Further, based on different CPU platform characteristics, a reading mode for reading each Root Bridge register is determined. Further, based on the reading mode of each Root Bridge register, the Root Bridge register is read to acquire the state parameters of the Root Bridge register and the configuration of the CPU vendor to the Root Bridge, namely the state parameters and the configuration information of the Root Bridge register.
The state parameters are used for representing parameters of various settings in the Root Bridge register.
Therefore, the Root Bridge register is read based on the characteristics of the CPU platform, so that the reading efficiency and accuracy can be improved, and the reliability and accuracy of acquiring the state information and the configuration information are further improved.
In one or more optional embodiments of the present application, the screening at least one display device from the bus devices associated with each root bridge register may be implemented as follows:
for each root bridge register, configuring a first configuration space of the root bridge register according to state parameters and configuration information of the root bridge register;
at least one display device is screened out of the bus devices associated with each root bridge register based on the first configuration space of each root bridge register.
Specifically, on the basis of acquiring the state parameters and the configuration information of the Root Bridge register, further, the configuration space of the Root Bridge register, namely, the first configuration space is configured.
And configuring a first configuration space of the current Root Bridge register according to the state parameters and the configuration information of the current Root Bridge register aiming at any Root Bridge register. Traversing each Root Bridge register to realize the configuration of the first configuration space of each Root Bridge register. Therefore, the configuration of the first configuration space is carried out based on the state parameters and the configuration information, and the rationality and the accuracy of the first configuration space can be improved.
Further, at least one display device is screened out of the bus devices associated with each bridge register based on the first configuration space of each bridge register. In this way, the screening efficiency can be improved.
For any Root Bridge register, screening information is written in a shared area of a first configuration space of the Root Bridge register, so that the Root Bridge register has a traversing function, and at least one display device is screened out of bus devices associated with the Root Bridge register.
In one or more optional embodiments of the present application, before the loading of the display driver, invoking each display device to perform screen display to expose an execution phase of the start code, the method further includes:
acquiring resource allocation and control configuration rules of a central processing unit platform corresponding to the server;
configuring a second configuration space of each display device based on the resource allocation and control configuration rule, and allocating a resource space for each display device;
correspondingly, under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code, and the method comprises the following steps:
Under the condition of loading a display driver, determining display information, wherein the display information characterizes an execution stage of a starting code;
writing the display information into a shared space of each second configuration space based on a driving interface;
for each display device, calling the display device to read the display information from the shared space corresponding to the display device;
and for each display device, calling the display device to fill pixels into the resource space of the display device based on the display information, so that the display device displays a picture to show the execution stage of the starting code.
Specifically, the resource allocation and control configuration rule is the resource allocation space and rule of the CPU platform.
In practical application, the resource allocation and control configuration rule of the CPU platform corresponding to the server may be obtained, and then the second configuration space of each display device may be configured according to the resource allocation and control configuration rule, and the resource space may be allocated to each display device. In this way, the rationality and efficiency of configuring the second configuration space and allocating the resource space can be improved.
Further, a simplified display driver is loaded to complete initialization of the display device. Display information to be displayed through the screen is then determined, the display information characterizing the execution phase of the start code. Display information is written into the shared space of the second configuration space of each display device based on the drive interface.
And then, each display device acquires display information from the shared space of the second configuration space, and calls the driving interface to fill pixels corresponding to the display information in the resource space, so that the display device performs picture display, and the content of the picture display is the execution stage of the starting code. Thus, the efficiency and accuracy of the picture display can be improved.
In one or more optional embodiments of the present application, the screening at least one display device from the bus devices associated with each root bridge register includes:
reading display options of a display configuration interface, wherein the display configuration interface is used for configuring display output types;
determining a display output type according to the display options;
and screening at least one display device corresponding to the display output type from bus devices associated with each root bridge register.
Specifically, the display options of the display configuration interface can be read first, and the display output type of the display device which is required to display the picture currently can be determined.
Further, each display device corresponding to the display output type is screened out from the bus devices associated with each bridge register. For example, all display devices in the bus devices associated with each bridge register are screened, and then the display device belonging to the display output type is used as the display device for final picture display.
In one or more optional embodiments of the present application, the display output type is an on-board output type or a graphics card display output type;
correspondingly, the screening at least one display device corresponding to the display output type from the bus devices associated with each root bridge register comprises the following steps:
under the condition that the display output type is an on-board output type, video graphic array equipment is screened out from bus equipment associated with each root bridge register and used as display equipment;
and under the condition that the display output type is the display output type of the display card, at least one bus display card is selected from the bus devices associated with the root bridge registers and is used as the display device.
Specifically, display devices fall into two main categories: VGA display output of BMC on a server main board, namely video graphic array equipment, is used as an on-board output interface; and secondly, the display card inserted in the PCIe slot displays output, namely a bus display card (PCIe display card), and one or more PCIe display cards can be inserted in the PCIe slot.
On-board display output or PCIe display output can be selected in the BIOS configuration interface, namely the display configuration interface. And selecting on-board display, and directly displaying and outputting VGA in the BMC. And after the PCIe display card is selected for output, displaying and outputting by the PCIe display card on the slot.
In practical application, when the display output type is an on-board output type, VGA is screened from bus devices associated with each Root Bridge register to be used as display devices; and screening at least one PCIe display card from the bus devices associated with each Root Bridge register to serve as display devices under the condition that the display output type is the display card display output type.
In one or more optional embodiments of the present application, in a case where the display output type is a graphics card display output type, at least one bus graphics card is screened from bus devices associated with each root bridge register, and as a display device, a specific implementation process may be as follows:
judging whether a bus display card exists in bus equipment associated with each root bridge register under the condition that the display output type is a display card display output type;
if yes, at least one bus display card is screened out from the bus devices associated with the root bridge registers and is used as display devices.
Specifically, the BIOS configures the interface, and the default display output type is an on-board display output, and the on-board output type. When PCIe display output is selected, that is, when the default display output type is the graphics card display output type, it is necessary to check that no PCIe graphics card is on the slot. If the PCIe display card exists, at least one PCIe display card is screened out from the bus equipment associated with each root bridge register and used as display equipment.
In one or more optional embodiments of the present application, after the determining whether the bus display card exists in the bus device associated with each root bridge register, the method further includes:
if not, the video graphic array equipment is screened out from the bus equipment associated with each root bridge register and is used as display equipment.
Specifically, the BIOS configures the interface, and the default display output type is an on-board display output, and the on-board output type. When PCIe display output is selected, that is, when the default display output type is the graphics card display output type, it is necessary to check that no PCIe graphics card is on the slot. If the PCIe display card is not available, the on-board display output is forcedly selected, namely VGA is screened out from bus equipment associated with each bridge register and is used as display equipment.
In one or more optional embodiments of the present application, the screening at least one bus graphic card from the bus devices associated with each root bridge register as a display device may specifically be implemented as follows:
reading the switch state of each initial bus display card in the display configuration interface;
and screening out the target bus display card with the switch state being the open state from the bus equipment associated with each root bridge register as display equipment.
Specifically, an on-board display output or a PCIe display output may be selected at the BIOS configuration interface. And after the PCIe display card is selected for output, listing all PCIe display devices on the slot, and adding the opening and closing options of each display device, so that a user further configures the display output device independently.
Further, it is necessary to read the on/off state of each initial bus graphic card from a display configuration interface (BIOS configuration interface), and screen out the target bus graphic card whose on/off state is in an on state from the bus devices associated with each Root Bridge register as a display device.
For example, all initial bus display cards are screened out from the bus devices associated with each Root Bridge register, and the initial bus display card with the switch state being in the on state, namely the target bus display card, is used as the display device.
In this way, the user may be enabled to autonomously configure the display output device.
In one or more optional embodiments of the present application, before the reading the display options of the display configuration interface, the method further includes:
receiving and responding to an interface display instruction, and displaying the display configuration interface;
receiving a first setting instruction aiming at the display configuration interface, wherein the first setting instruction carries a display output type;
And setting display options of the display configuration interface according to the display output type.
Specifically, the user wants to set the display device, and needs to open the interface display instruction, that is, trigger the interface display instruction. Correspondingly, the server receives the interface display instruction and displays the configuration interface.
Then, the user selects a display output type in the display options of the display configuration interface, namely, a first setting instruction aiming at the display configuration interface is generated. And the server sets display options based on the display output types carried in the first setting instruction. Therefore, through man-machine interaction, the user requirements can be received, display output can be carried out according to the user requirements, and user satisfaction is improved.
In one or more optional embodiments of the present application, before the reading the switch state of each initial bus graphics card in the display configuration interface, the method further includes:
receiving a second setting instruction aiming at the display configuration interface, wherein the second setting instruction carries the switching parameters of each initial bus display card;
and setting the switching state of each initial bus display card in the display configuration interface according to the switching parameters of each initial bus display card.
Specifically, when the display options are characterized as display card display output types, the display configuration interface displays and lists each bus display card and increases the opening and closing options of each bus display card, so that the user further configures the display output device independently.
And the user performs the selection of opening and closing the bus graphic card in the opening and closing options of the display configuration interface, namely, generates a second setting instruction aiming at the display configuration interface. And the server sets the switching state of each initial bus display card based on the switching parameters of each initial bus display card carried in the second setting instruction. Therefore, through man-machine interaction, the user requirements can be received, display output can be carried out according to the user requirements, and user satisfaction is improved.
Therefore, a control scheme of display output is increased, functions of the BIOS are enriched, power consumption of a server is reduced through customizing display configuration, and running cost of equipment is increased.
In one or more alternative embodiments of the present application, the method further comprises:
and clearing the configuration of each root bridge register under the condition that the starting process of the server is detected to be in the BDS stage.
Specifically, since the display configuration in the PEI phase is a temporary solution, in order to avoid conflicts with the enumeration, configuration, and the like of PCIe devices with complete BDS phase, it is necessary to clear the configuration of Root Bridge registers after the boot program enters the BDS phase.
It should be noted that, the picture display method in the starting process of the server provided by the application not only controls the display output on the scheme of initializing the output display picture of the display device in the initial stage of starting, but also controls the output in the enumeration and configuration of the complete PCIe device in the BDS stage, so as to realize the display control of the whole starting process of the BIOS.
The method for displaying a picture in the startup process of the server provided in the present application is further described below with reference to fig. 2. Referring to fig. 2, fig. 2 is a second flowchart of a picture display method in the startup process of the server provided in the present application:
in the early PEI phase of the starting process, initializing a display device to output a display picture:
first, after entering the PEI phase, the CPU basic functions and memory are initially completed, and the BIOS begins to enter the C language environment. According to different CPU platform characteristics, a Root Bridge register is read, and state parameters of the Root Bridge and configuration (configuration information) of a CPU manufacturer on the Root Bridge are obtained. Then, a Root Bridge configuration space (first configuration space) is set according to the state parameter and the configuration information. And traversing PCIe devices under the Root Bridge register under a certain range to find out the display device.
It is determined whether it is the last Root Bridge register. If not, returning to the step of reading the Root Bridge register. If yes, reading the configuration space of the display equipment and allocating resources according to the resource allocation space and rules of the CPU platform, namely setting the configuration space (second configuration space) and allocating resources.
Further, a display driver is loaded, a driving interface is called to fill pixels into a resource space, a display picture is output, and display information (an execution stage of a start code) is output to a screen.
And each CPU is provided with a plurality of Root Bridge registers, the loop configuration traversal is needed according to actual conditions, and all PCIe displays of the Root Bridge registers are found and initialized. Upon completion of initialization of the PEI phase display device, the character display interface is invoked, and the node that initiates execution of the code (the execution phase of the initiation code) is output onto the screen.
It should be noted that, the display configuration in the PEI phase is a temporary solution, and in order to avoid complete enumeration and configuration conflicts of PCIe devices in the BDS phase, it is necessary to clear the configuration of Root Bridge registers after entering the BDS phase.
In this embodiment, at least one root bridge register on a server is read when it is detected that a startup process of the server is in a PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code. The method and the device realize the output screen display in the early stage (PEI stage) of the starting process, reduce the black screen time, optimize the user experience, display the execution node and the problem of the starting code, and facilitate the test, the factory and the user positioning to solve the problem.
Referring to fig. 3, fig. 3 is a third flowchart of a screen display method in the startup process of the server provided in the present application:
control scheme of display device: the display devices are divided into two main types, namely VGA display output of the BMC on the server main board is used as an on-board output interface, and display output of the display card inserted in the PCIe slot is realized. And one or more PCIe graphics card devices may be plugged into the PCIe slot. Either the on-board display output or the PCIe display output may be selected at the BIOS configuration interface. And selecting on-board display, and directly displaying and outputting VGA in the BMC. And after the PCIe display card is selected for output, listing all PCIe display devices on the slot, and adding the opening and closing options of each display device, so that a user further configures the display output device independently. The BIOS configures the interface, defaults to on-board display output. When PCIe display output is selected, and the PCIe display card device is not arranged on the slot, the on-board display output is forcedly selected.
Specifically, firstly, the display options of the BIOS configuration interface are read, and whether on-board display is performed is judged. If the video is displayed on board, the VGA is searched, initialized and displayed by the VGA. If the display is not on-board display, searching the PCIe display card, further judging whether the PCIe display card exists, if the PCIe display card exists, reading the switch state of the BIOS configuration interface, initializing the target PCIe display card according to the target PCIe display card with the switch state being the on state, and displaying the picture by the target PCIe display card. If the PCIe display card does not exist, searching the VGA, initializing the VGA, and displaying the picture by the VGA.
In this embodiment, a control scheme of display output is added, functions of the BIOS are enriched, and power consumption of a server is reduced and running cost of the device is increased by customizing display configuration.
It should be noted that, in the method for displaying a picture in a server startup process provided in the embodiments of the present application, the execution subject may be a picture display device in the server startup process, or a control module for executing the method for displaying a picture in the server startup process in the picture display device in the server startup process. In the embodiment of the present application, a method for executing a picture display in a server startup process by using a picture display device in a server startup process is taken as an example, and the picture display device in a server startup process provided in the embodiment of the present application is described.
In the embodiment of the present application, the method for displaying the picture in the starting process of the server shown in the above-mentioned method drawings is described by taking one drawing in the embodiment of the present application as an example. In specific implementation, the method for displaying the picture in the starting process of the server shown in the above method drawings may be further implemented in combination with any other drawing that may be combined and is illustrated in the above embodiment, which is not described herein again.
The following describes a picture display device in the server startup process provided in the present application, and the picture display method in the server startup process described below and the picture display method in the server startup process described above may be referred to correspondingly to each other.
Fig. 4 is a schematic structural diagram of a picture display device in a server startup process according to an embodiment of the present application, as shown in fig. 4, specifically including:
a reading module 401 configured to read at least one root bridge register on a server in case it is detected that the start-up procedure of the server is in PEI phase;
a screening module 402 configured to screen at least one display device from the bus devices associated with each of the root bridge registers;
and the display module 403 is configured to call each display device to display a picture under the condition of loading the display driver so as to show the execution stage of the starting code.
The picture display device in the starting process of the server reads at least one root bridge register on the server under the condition that the starting process of the server is detected to be in a PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code. The method and the device realize the output screen display in the early stage (PEI stage) of the starting process, reduce the black screen time, optimize the user experience, display the execution node and the problem of the starting code, and facilitate the test, the factory and the user positioning to solve the problem.
In one or more alternative embodiments of the present application, the reading module 401 is further configured to:
determining platform characteristics of a central processing unit platform corresponding to the server;
determining a reading mode of at least one root bridge register on the server according to the platform characteristics;
and respectively reading each root bridge register according to each reading mode to obtain the state information and the configuration information of each root bridge register.
In one or more alternative embodiments of the present application, the screening module 402 is further configured to:
for each root bridge register, configuring a first configuration space of the root bridge register according to state parameters and configuration information of the root bridge register;
at least one display device is screened out of the bus devices associated with each root bridge register based on the first configuration space of each root bridge register.
In one or more optional embodiments of the present application, the apparatus further comprises an acquisition module configured to:
acquiring resource allocation and control configuration rules of a central processing unit platform corresponding to the server;
configuring a second configuration space of each display device based on the resource allocation and control configuration rule, and allocating a resource space for each display device;
accordingly, the display module 403 is further configured to:
under the condition of loading a display driver, determining display information, wherein the display information characterizes an execution stage of a starting code;
writing the display information into a shared space of each second configuration space based on a driving interface;
for each display device, calling the display device to read the display information from the shared space corresponding to the display device;
And for each display device, calling the display device to fill pixels into the resource space of the display device based on the display information, so that the display device displays a picture to show the execution stage of the starting code.
In one or more alternative embodiments of the present application, the screening module 402 is further configured to:
reading display options of a display configuration interface, wherein the display configuration interface is used for configuring display output types;
determining a display output type according to the display options;
and screening at least one display device corresponding to the display output type from bus devices associated with each root bridge register.
In one or more optional embodiments of the present application, the display output type is an on-board output type or a graphics card display output type;
accordingly, the screening module 402 is further configured to:
under the condition that the display output type is an on-board output type, video graphic array equipment is screened out from bus equipment associated with each root bridge register and used as display equipment;
and under the condition that the display output type is the display output type of the display card, at least one bus display card is selected from the bus devices associated with the root bridge registers and is used as the display device.
In one or more alternative embodiments of the present application, the screening module 402 is further configured to:
judging whether a bus display card exists in bus equipment associated with each root bridge register under the condition that the display output type is a display card display output type;
if yes, at least one bus display card is screened out from the bus devices associated with the root bridge registers and is used as display devices.
In one or more alternative embodiments of the present application, the screening module 402 is further configured to:
if not, the video graphic array equipment is screened out from the bus equipment associated with each root bridge register and is used as display equipment.
In one or more alternative embodiments of the present application, the screening module 402 is further configured to:
reading the switch state of each initial bus display card in the display configuration interface;
and screening out the target bus display card with the switch state being the open state from the bus equipment associated with each root bridge register as display equipment.
In one or more optional embodiments of the present application, the apparatus further comprises a first setting module configured to:
Receiving and responding to an interface display instruction, and displaying the display configuration interface;
receiving a first setting instruction aiming at the display configuration interface, wherein the first setting instruction carries a display output type;
and setting display options of the display configuration interface according to the display output type.
In one or more optional embodiments of the present application, the apparatus further comprises a second setting module configured to:
receiving a second setting instruction aiming at the display configuration interface, wherein the second setting instruction carries the switching parameters of each initial bus display card;
and setting the switching state of each initial bus display card in the display configuration interface according to the switching parameters of each initial bus display card.
In one or more optional embodiments of the present application, the apparatus further comprises a purge module configured to:
and clearing the configuration of each root bridge register under the condition that the starting process of the server is detected to be in the BDS stage.
Fig. 5 illustrates a physical schematic diagram of an electronic device, as shown in fig. 5, which may include: processor 510, communication interface (Communications Interface) 520, memory 530, and communication bus 540, wherein processor 510, communication interface 520, memory 530 complete communication with each other through communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform a method of visual display during a server startup process, the method comprising: reading at least one root bridge register on a server under the condition that the starting process of the server is detected to be in a PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code.
Further, the logic instructions in the memory 530 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present application also provides a computer program product, the computer program product including a computer program stored on a computer readable storage medium, the computer program including program instructions which, when executed by a computer, enable the computer to perform a method for displaying a picture during a server startup procedure provided by the methods described above, the method comprising: reading at least one root bridge register on a server under the condition that the starting process of the server is detected to be in a PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code.
In still another aspect, the present application further provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the above-mentioned respective provided method for displaying a screen during a server startup procedure, the method comprising: reading at least one root bridge register on a server under the condition that the starting process of the server is detected to be in a PEI phase; screening at least one display device from bus devices associated with each root bridge register; and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (15)

1. A picture display method in a server start-up process, comprising:
reading at least one root bridge register on a server under the condition that the starting process of the server is detected to be in a PEI phase;
screening at least one display device from bus devices associated with each root bridge register;
and under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code.
2. The method for displaying pictures during a server start-up process of claim 1, wherein said reading at least one root bridge register on said server comprises:
determining platform characteristics of a central processing unit platform corresponding to the server;
determining a reading mode of at least one root bridge register on the server according to the platform characteristics;
and respectively reading each root bridge register according to each reading mode to obtain the state information and the configuration information of each root bridge register.
3. The method for displaying a screen during a server startup process according to claim 2, wherein said screening at least one display device from the bus devices associated with each root bridge register comprises:
For each root bridge register, configuring a first configuration space of the root bridge register according to state parameters and configuration information of the root bridge register;
at least one display device is screened out of the bus devices associated with each root bridge register based on the first configuration space of each root bridge register.
4. The method for displaying a screen during a startup process of a server according to claim 1, wherein, when the display driver is loaded, the method further comprises, before invoking each of the display devices to display the screen to expose an execution phase of the startup code:
acquiring resource allocation and control configuration rules of a central processing unit platform corresponding to the server;
configuring a second configuration space of each display device based on the resource allocation and control configuration rule, and allocating a resource space for each display device;
correspondingly, under the condition of loading the display driver, calling each display device to display a picture so as to show the execution stage of the starting code, and the method comprises the following steps:
under the condition of loading a display driver, determining display information, wherein the display information characterizes an execution stage of a starting code;
Writing the display information into a shared space of each second configuration space based on a driving interface;
for each display device, calling the display device to read the display information from the shared space corresponding to the display device;
and for each display device, calling the display device to fill pixels into the resource space of the display device based on the display information, so that the display device displays a picture to show the execution stage of the starting code.
5. The method for displaying a screen during a server startup process according to claim 1, wherein said screening at least one display device from among bus devices associated with each root bridge register comprises:
reading display options of a display configuration interface, wherein the display configuration interface is used for configuring display output types;
determining a display output type according to the display options;
and screening at least one display device corresponding to the display output type from bus devices associated with each root bridge register.
6. The method for displaying a picture in a server startup process according to claim 5, wherein the display output type is an on-board output type or a graphics card display output type;
Correspondingly, the screening at least one display device corresponding to the display output type from the bus devices associated with each root bridge register comprises the following steps:
under the condition that the display output type is an on-board output type, video graphic array equipment is screened out from bus equipment associated with each root bridge register and used as display equipment;
and under the condition that the display output type is the display output type of the display card, at least one bus display card is selected from the bus devices associated with the root bridge registers and is used as the display device.
7. The method for displaying a picture in a server startup process according to claim 6, wherein, in the case that the display output type is a graphic card display output type, at least one bus graphic card is selected from bus devices associated with each root bridge register as a display device, including:
judging whether a bus display card exists in bus equipment associated with each root bridge register under the condition that the display output type is a display card display output type;
if yes, at least one bus display card is screened out from the bus devices associated with the root bridge registers and is used as display devices.
8. The method for displaying a picture in a server startup process according to claim 7, wherein after determining whether a bus graphic card exists in the bus device associated with each root bridge register, the method further comprises:
if not, the video graphic array equipment is screened out from the bus equipment associated with each root bridge register and is used as display equipment.
9. The method for displaying a picture in a server startup process according to any one of claims 6 and 7, wherein said selecting at least one bus graphic card from the bus devices associated with each root bridge register as a display device comprises:
reading the switch state of each initial bus display card in the display configuration interface;
and screening out the target bus display card with the switch state being the open state from the bus equipment associated with each root bridge register as display equipment.
10. The method for displaying a screen during a server startup process according to claim 5, wherein before reading the display options of the display configuration interface, further comprising:
receiving and responding to an interface display instruction, and displaying the display configuration interface;
receiving a first setting instruction aiming at the display configuration interface, wherein the first setting instruction carries a display output type;
And setting display options of the display configuration interface according to the display output type.
11. The method for displaying a picture in a server startup process according to claim 9, wherein before reading the on-off state of each initial bus graphic card in the display configuration interface, the method further comprises:
receiving a second setting instruction aiming at the display configuration interface, wherein the second setting instruction carries the switching parameters of each initial bus display card;
and setting the switching state of each initial bus display card in the display configuration interface according to the switching parameters of each initial bus display card.
12. A method for displaying a picture during a server start-up process as claimed in claim 3, wherein the method further comprises:
and clearing the configuration of each root bridge register under the condition that the starting process of the server is detected to be in the BDS stage.
13. A picture display device in a server start-up procedure, the device comprising:
a reading module configured to read at least one root bridge register on a server if it is detected that a startup process of the server is in a PEI phase;
a screening module configured to screen at least one display device from bus devices associated with each root bridge register;
And the display module is configured to call each display device to display a picture under the condition of loading the display driver so as to show the execution stage of the starting code.
14. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method for displaying pictures during start-up of a server according to any one of claims 1 to 12 when the program is executed by the processor.
15. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of the picture display method in a server start-up procedure as claimed in any one of claims 1 to 12.
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