CN106909349A - A kind of UEFI firmware implementation methods based on server - Google Patents
A kind of UEFI firmware implementation methods based on server Download PDFInfo
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- CN106909349A CN106909349A CN201510969077.4A CN201510969077A CN106909349A CN 106909349 A CN106909349 A CN 106909349A CN 201510969077 A CN201510969077 A CN 201510969077A CN 106909349 A CN106909349 A CN 106909349A
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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
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
Abstract
The invention discloses a kind of UEFI firmware implementation methods based on server.The method is specially：Server electrifying startup, execution processor drive module, initialization processor and internal memory, and the interface of access process device and internal memory is provided, so as to set up the Essential Environment of firmware operation.Firmware core loading module is performed, UEFI firmware codes internal memory is copied into, and firmware is decompressed, loading firmware nucleus module.Firmware nucleus module is performed, the infrastructure service of UEFI firmwares is set up；The system service of UEFI is initialized, the initialization of agent list when UEFI system tables, UEFI start agent list and UEFI operations is completed, all functional modules in UEFI firmwares can call system service.Loading UEFI firmware functional modules, including architecture functional module, device protocol module.Loading peripheral hardware scan module, scanning peripheral hardware and be peripheral assignment system resource, load peripheral hardware drive module, complete peripheral hardware initialize.Each module, start-up operation system in load and execution firmware application layer.
Description
Technical field
The invention belongs to the invention belongs to computer firmware technical field, be related to a kind of UEFI based on server
The implementation method of firmware.
Background technology
UEFI (Unified Extensible Firmware Interface, unified Extensible Firmware Interface) is
A kind of interface specification of computer firmware (or being BIOS), is also the topmost industry mark on firmware
It is accurate.UEFI specification is formulated towards the Itanium and X 86 processor of Intel Company, but
UEFI specification is in itself unrelated with processor architecture, and X86, Itanium, ARM have been applied at present
Deng processor platform.Meet the computer firmware (hereinafter referred to as UEFI firmwares) of UEFI specification relative to biography
The firmware of system has lot of superiority, and the X86 BCSs of current main flow are essentially all to employ
UEFI firmwares.
The 1500A (FT) that soars is the domestic general central processor developed by the National University of Defense Technology, is adopted
It is special with high-performance, low-power consumption using international advanced 28nm techniques flow with ARM V8 instruction set
Point, key technology is domestically leading, is capable of achieving the replacement to Intel middle and high ends " to strong " server chips.Fly
Rise 1500A series includes 4 cores and the product of 16 core two at present, and 4 core processor chips are mainly directed towards desktop end
End and lightweight service device application field, it is adaptable to build terminal console, all-in-one, Portable notebook, micro-
The products such as server.The service-oriented device application field of 16 core processor chips, it is adaptable to build network front end and connect
Enter the products such as server, transaction server, mail server.
U-BOOT is a firmware of increasing income, and supports multiple processor familys, such as PowerPC, ARM,
X86, MIPS etc., manufacturer of soaring, as the firmware of debugging processor, and are applied and soared using U-BOOT
In server solution.But there are many deficiencies compared with conventional UEFI computer firmwares in U-BOOT,
It is mainly manifested in：U-BOOT projects are entered in the few producers of computer industry circle using U-BOOT or to it
Row is supported, therefore U-BOOT cannot be standardized and is developed；Unlike UEFI firmwares support newest
Computer technology, U-BOOT codes are not supported many technical specifications, it is impossible to realized common to some
The support of function, such as ACPI (presently the most general power management techniques), GRUB (presently the most lead to
Operating system nucleus loader) etc.；Compared with UEFI firmwares, U-BOOT does not use modularization side
Method is designed realization, and scalability is not strong, and exploitation is safeguarded also inconvenient.
The content of the invention
In view of this, the invention provides a kind of implementation method of the UEFI firmwares based on server.According to this
Individual method, can soar realize out meeting on 1500A servers international mainstream UEFI firmware specifications, can
Autgmentability is strong, the fastener product of perfect in shape and function, the normal startup and operation of 1500A servers of being soared with support.
In order to achieve the above object, the technical scheme is that：UEFI firmwares are divided into hardware abstraction layer, consolidate
Part core layer, device protocol layer and firmware application layer.
Hardware abstraction layer includes processor drive module, chipset drive module and peripheral hardware drive module, treatment
Device drive module is initialized to processor in server and internal memory, and provides access process device and internal memory
Interface；Chipset drive module is initialized to the Central-South north bridge chips of server hardware platform, including bridge piece
The initialization of itself and each peripheral control unit and resource allocation work, and the interface of access north and south bridge is provided；
Peripheral hardware drive module drives the peripheral hardware connected on server master board.
Firmware core layer includes firmware core loading module, firmware nucleus module and architecture functional module,
Firmware core loading module loading firmware nucleus module, and for it prepares running environment；Firmware nucleus module is built
Startup service Boot Service in vertical UEFI specification and service Runtime Service tables when running, loading,
Other modules in operation firmware core layer, the interaction in managed firmware core layer between each module, management clothes
Internal memory in business device, realizes and safeguards tick interrupt and case mechanism, realizes and safeguard the level of privilege of firmware application
Mechanism, realizes the administrative mechanism of the Protocol defined in UEFI specification, realizes that UEFI specification requirement is realized
Mechanism and FunctionsDNA；Architectural protocol Architectural in architecture Implement of Function Module UEFI specification
Protocol, architecture functional module includes multiple functional modules, and each module realizes an Architectural
Protocol；Each Architectural Protocol includes some infrastructure service interfaces, for other work(in firmware
Energy module is called.
Device protocol layer includes bus protocol module and network protocol stack module, and bus protocol module is realized various
Bus protocol, and the access interface of bus is issued by the Protocol mechanism in UEFI specification；Procotol
Stack module realizes network protocol stack.
Firmware application layer includes device scan module, man-machine interface display module, system-monitoring module, system
Module and Shell modules when starting module, file system module, kernel loads module, operation；Device scan
Module enumerates all peripheral hardwares in server, and is peripheral assignment resource, by external equipment and corresponding peripheral hardware
Drive module is attached；Man-machine interface display module is connected with video driver module, realizes all display phases
The interface of pass；Temperature of processor, system voltage and rotation speed of the fan in system-monitoring module real-time detection server,
The rotating speed of fan is adjusted according to temperature of processor, when temperature of processor is too high, forced shutdown；System is opened
Dynamic model block provides a patterned user configuring interface, and user checks system by way of menu operation
Information and system is configured.Finally according to the selection of user, from storage device start-up operation system；Text
Part system module realizes FAT/FAT32, EXT2/3/4 and ISO9660 file system, supports the reading to file
Extract operation；The final stage that kernel loads module starts in system, by kernel from the storage medium of server
File is loaded into internal memory, and for kernel file prepares necessary parameter, then branches to the entrance of kernel
Perform kernel file；Module realizes that the confession operating system of UEFI specification definition is called in its operation phase during operation
Operation when Runtime interfaces, and operating system and the firmware definition of processor platform interface；Shell
It is a command line environment of UEFI firmwares offer, based on a large amount of interface services provided in UEFI firmwares,
Develop the various firmware application programs under Shell.
On the basis of above-mentioned UEFI firmwares, the method comprises the following steps：
Step one, server electrifying startup, perform processor drive module, initialization processor and internal memory,
And the interface of access process device and internal memory is provided, so as to set up the Essential Environment of firmware operation.
Step 2, execution firmware core loading module, internal memory is copied to by UEFI firmware codes, and to firmware
Decompressed, loading firmware nucleus module.
Step 3, execution firmware nucleus module, set up the infrastructure service of UEFI firmwares；Initialization UEFI's
System service, completes the initialization of agent list when UEFI system tables, UEFI start agent list and UEFI operations,
All functional modules in UEFI firmwares can call system service.
Step 4, loading UEFI firmware functional modules, including architecture functional module, device protocol module.
Step 5, loading peripheral hardware scan module, scanning peripheral hardware and be peripheral assignment system resource, loading peripheral hardware
Drive module, completes peripheral hardware initialization.
Each module, start-up operation system in step 6, load and execution firmware application layer.
In above-mentioned steps, the firmware application module in step (6) in firmware nucleus module loading firmware volume, and in fact
Existing corresponding firmware function.Including display module, system-monitoring module, file system module, kernel loads
Module, Shell modules, system starting module when module, operation, finally, firmware nucleus module is by control
System starting module is given, prepares start-up operation system.
Further, in step one, after server electrifying startup, processor drive module is performed, is now taken
Internal memory does not complete initialization, FLASH core of the processor drive module using connection in the server also in business device
Piece runs；Processor drive module realizes processor, cache Cache, internal memory, bypass turn in server
The initialization of buffering TLB is changed, the initialization of Memory Controller Hub MCU, SMBUS and internal memory is realized, configured
Memory address window, and the interface for accessing the parts such as CPU, Cache, internal memory, processor drive module are provided
Also want the serial port module in initialization processor, there is provided the debugging of UEFI firmware codes.
Further, firmware core loading module is performed in step 2, Installed System Memory is initial in server
Change, now firmware code can run to accelerate the speed of service in internal memory, have compression in FLASH
Firmware volume, during the firmware volume of compression is copied to internal memory by firmware core loading module from FLASH, and is carried out
Decompression；After decompressing successfully, HOB tables of data, storage processor, internal memory and FLASH are created in internal memory
Information.
Further, firmware nucleus module is performed in rapid three, initializing the system service of UEFI includes that code is adjusted
Examination, memory management, the management of UEFI mirror images, HOB, UEFI clock, FLASH are accessed, decompress, consolidated
The parsing of part volume, UEFI events, task priority, UEFI Protocol management, UEFI variable access.
Further, in step 4 firmware nucleus module loading firmware functional module, firmware nucleus module lead to
Retrieval firmware volume is crossed, functional module therein is searched successively, and be loaded into internal memory, each function mould
Block is all compiled into an executable mirror image for PE/ELF forms, and firmware nucleus module needs analytical capabilities module
Mirror image, is then loaded at the particular address of internal memory, and jumps to entrance function, the entrance letter of functional module
After the completion of number is performed, firmware nucleus module is returned to, firmware nucleus module proceeds next functional module
Loading.
Further, step 4, architecture functional module major function is realized in UEFI specification
Architectural Protocol, each Architectural Protocol is realized by a module；
Device protocol layer module mainly realize access PCI/PCIE, SATA, PATA, SCSI, USB, ISA,
The function interface of SMBUS and LPCBUS buses, and be encapsulated in Protocol and called for other functions module,
A kind of bus protocol is realized using a module.
Further, in step 5, peripheral hardware includes north and south bridge chip, video card, SATA/IDE controllers, USB
Controller, SMBUS controllers, LPC controller, keyboard, network interface card.
Beneficial effect：
1st, the method for the present invention meets UEFI the and PI firmware specifications of international mainstream, using UEFI alliances
The Open Source Code resource of offer quickly realizes firmware；Many peripheral hardware board manufacturers are all provided based on UEFI specification
Drive, can also greatly speed up the progress of firmware development.In addition, UEFI firmwares support main computer industry
Standard, ACPI (advanced configuration and power-management interface) specification that such as current Feiteng processor is not supported also,
So can easily increase the support to these specifications using the firmware of present invention design.
2nd, the important feature of the UEFI firmwares of present invention design is high modularization, the work(to be realized of firmware
Many subfunctions can be broken down into, each subfunction is realized by single module, and by a nucleus module
To load and manage these functional modules.Therefore can be by additions and deletions module come the function of easily customized firmware.
Brief description of the drawings
Fig. 1 is the configuration diagram of the UEFI firmwares based on FT server.
Specific embodiment
Develop simultaneously embodiment below in conjunction with the accompanying drawings, and the present invention will be described in detail.
A kind of implementation method of the UEFI firmwares based on FT server, firmware is divided into hardware abstraction layer, consolidates
Part core layer, device protocol layer and firmware application layer.
Wherein, hardware abstraction layer realizes the initialization of the key hardware components such as processor and internal memory, chipset,
To other plates level hardware carry out packaging and it is abstract and realize initialization, while for upper layer module provide access bottom
The function interface of hardware device.It includes that processor drive module, chipset drive module and peripheral hardware drive mould
Block, processor drive module completes the initial work of processor and internal memory, and provides access process device and interior
The interface deposited；Chipset drive module mainly completes the initial of the Central-South north bridge chips of FT server hardware platform
Chemical industry is made, including bridge piece works with the initialization of each peripheral control unit and resource allocation in itself, and provides visit
Ask the interface of north and south bridge；Peripheral hardware drive module is mainly the driving of various peripheral hardwares on mainboard, such as video card, hard disk,
Keyboard, USB device, network interface card etc., each peripheral hardware can correspond to (or multiple) drive module.
Firmware core layer carries out firmware similar to the kernel of operating system, the system service table set up in UEFI
In all modules unified management and various resources management.It includes firmware core loading module, firmware core
Core module and architecture functional module, firmware core loading module is responsible for loading firmware nucleus module, and is
It prepares running environment, and firmware nucleus module is responsible for setting up the startup service (Boot Service) in UEFI specification
Service (Runtime Service) table during with operation, loading, operation other functions module, manage each module it
Between interaction, realize the management of internal memory, realize and safeguard tick interrupt and case mechanism, realize and safeguard and be solid
The level of privilege mechanism of part application, realizes the administrative mechanism of the Protocol defined in UEFI specification, realizes UEFI
Other Mechanism and FunctionsDNAs that code requirement is realized, such as debugging interface, compression algorithm, variable storage/treatment.
Architectural Protocol in architecture Implement of Function Module UEFI specification, including multiple functional modules,
Each module realizes an Architectural Protocol.Each Architectural Protocol includes some bases
Plinth service interface, calls for the other functions module in firmware.
Device protocol layer realizes the industrial specification of various standards, including bus protocol, Peripheral Interface, network association
View stack etc..It includes bus protocol module and network protocol stack module, and bus protocol module realizes various buses
Agreement, such as PCI/PCIE, SATA, PATA, SCSI, USB, ISA, SMBUS, LPCBUS.
Typically one module realizes a kind of bus protocol, and by the Protocol mechanism " issue " in UEFI specification
The interface of these buses, so other modules can access bus with using these interfaces；Network protocol stack
Module realizes network protocol stack, such as TCP/IP, SNP, DHCP, TFTP, and so other modules can be with
The related function of network is realized based on these protocol stacks.
Firmware application layer realizes the various functions of firmware, such as configuration interface, system monitoring, file system, behaviour
Make System guides etc.；It includes device scan module, man-machine interface display module, system-monitoring module, is
Module and Shell modules when system starting module, file system module, kernel loads module, operation, equipment are swept
Retouch all external equipments during module enumerates system, such as the equipment in PCI/PCIE buses, be these equipment point
With resource, and equipment and corresponding peripheral hardware drive module are carried out into Connect (namely give the device drives and enter
Row management)；Man-machine interface display module is located on video driver module, realizes the related interface of all displays,
Such as set display pattern, ad-hoc location printable character string, display picture, cls；System-monitoring module
Real-time detection temperature of processor, system voltage and rotation speed of the fan, the rotating speed of fan is adjusted according to temperature value；
User's design temperature threshold value is allowed, when temperature is too high, automatic shutdown is carried out；System starting module provides one
Individual patterned user configuring interface, user checks system information and to system by way of menu operation
Configured.Finally according to the selection of user, from storage device start-up operation system；File system module reality
Existing FAT/FAT32, EXT2/3/4 and ISO9660 file system, supports the read operation to file；Kernel
The final stage that load-on module starts in system, this module is from the storage mediums such as hard disk, USB flash disk, CD
Kernel file is loaded into internal memory, and for kernel file prepares necessary parameter, then branches to kernel
Entrance performs, and has thus given operating system by control；Module realizes UEFI specification and determines during operation
(Runtime) interface during operation that the confession operating system of justice was called in its operation phase, and Feiteng processor
Some interfaces that the operating system of platform is defined with firmware, such as system reboot, shutdown；Shell is UEFI
The command line environment that firmware is provided, based on a large amount of interface services provided in UEFI firmwares, can develop
The various firmware application programs gone out under Shell.
The carrying out practically step of the UEFI firmwares based on FT server of the invention is as follows：
(1) initialization processor and internal memory, it is established that the Essential Environment of firmware operation；
(2) UEFI firmware codes are copied into internal memory, and firmware is decompressed, loading firmware
Nucleus module；
(3) infrastructure service of UEFI firmwares is set up；
(4) UEFI firmware functional modules, including architecture functional module, device protocol are loaded
Module；
(5) scanning device and be equipment distributing system resource, loading equipemtn drive module completes to set
Standby initialization；
(6) load and execution firmware application module；Running configuration interface；Loaded from storage device and operated
System.
In above-mentioned steps, processor drive module is performed in step (1).Processor drive module uses instruction set
Realize, be the module being first carried out after system electrification, now internal memory does not complete initialization also, so this mould
Block directly runs in FLASH chip.Processor drive module realizes soar 1500A processors, Caehe
(cache), internal memory, TLB (bypass conversion buffered) etc. initialize, realize MCU (Memory Controller Hub),
The initialization of SMBUS and internal memory, configures memory address window, and provide access CPU, Cache, internal memory
Deng the interface of part.Processor drive module also wants the serial port module in initialization processor, is follow-up consolidating
The offer debugging method of part code.
In above-mentioned steps, firmware core loading module is performed in step (2).After the completion of step (1) is performed, system
Internal memory is initialized good, and now firmware code can run to accelerate the speed of service in internal memory；And can
To be implemented in C language firmware code, Speeding up development speed.The functional module included in firmware is more, and
The finite capacity of FLASH chip, generally requires and is compressed the firmware volume for depositing functional module, firmware core
During heart load-on module is responsible for that the firmware volume of compression copied into internal memory from FLASH, and decompressed；Decompression
Success after, in internal memory create HOB (Hand-Off Block) tables of data, storage processor, internal memory,
The system informations such as FLASH, there is provided used to follow-up firmware module；Finally, firmware core loading module will
Control gives firmware nucleus module.
In above-mentioned steps, firmware nucleus module is performed in step (3).Firmware nucleus module initializes UEFI first
System service, be follow-up functional module loading, operation prepare.Mainly complete UEFI system tables,
UEFI starts the initialization of agent list when agent list and UEFI run, and specific service includes code debugging, interior
Deposit management, the management of UEFI mirror images, HOB, UEFI clock, FLASH access, decompression, firmware volume solution
Analysis, UEFI events, task priority, UEFI Protocol management, UEFI variable access etc..System takes
Business table is stored in the specific region of internal memory, and all functional modules in UEFI firmwares can call these systems
Service.
In above-mentioned steps, the functional module of firmware nucleus module loading firmware in step (4).Firmware nucleus module
By retrieving firmware volume, functional module therein is searched successively, and be loaded into internal memory.Each function
Module is all compiled into an executable mirror image for PE/ELF forms, and firmware nucleus module needs analytical capabilities mould
Block mirror image, is then loaded at the particular address of internal memory, and jumps to entrance function.The entrance of functional module
After the completion of function is performed, it will usually return to firmware nucleus module, firmware nucleus module proceeds next
The loading of functional module.
The module being loaded in step (4) includes architecture functional module, device protocol module.Wherein,
Architecture functional module major function is to realize the Architectural Protocol in UEFI specification, main bag
Include：Boot Device Selection(BDS)、CPU、Metronome、Monotonic Counter、Real Time
Clock、Runtime、Security、Status Code、Timer、Variable、Variable Write、Watchdog
Timer, each Architectural Protocol is realized by a module；Device protocol layer module is mainly realized
Access the buses such as PCI/PCIE, SATA, PATA, SCSI, USB, ISA, SMBUS, LPCBUS
Function interface, and be encapsulated in Protocol and called for other functions module, typically one module realizes one
Plant bus protocol.In addition, also including realizing the functional module of TCP/IP network protocol stacks；
In above-mentioned steps, the initialization of completion equipment in step (5).Firmware nucleus module loading equipemtn drives
Module, realizes the initialization of peripheral hardware on mainboard and realizes accessing the function interface of peripheral hardware, including north and south bridge chip,
Video card, SATA/IDE controllers, USB controller, SMBUS controllers, LPC controller, keyboard,
Network interface card etc..A kind of device drives are generally realized by a module.In addition, in this stage by device scan mould
All peripheral hardwares in block scan system, and be peripheral assignment internal memory, IO and interrupt resources, so it is located at behaviour outward
Make ability normal work under system.
In above-mentioned steps, the firmware application module in step (6) in firmware nucleus module loading firmware volume, and in fact
Existing corresponding firmware function.Including display module, system-monitoring module, file system module, kernel loads
Module, Shell modules, system starting module when module, operation.Finally, firmware nucleus module is by control
System starting module is given, prepares start-up operation system.
System starting module is shown by the service interface for calling firmware nucleus module and other functions module to provide
Show figure configuration interface as human-computer interaction interface.In this stage, firmware enters according to the operation of user
The work of row next step, including the display of system information and the configuration of systematic parameter are provided, and selection will be opened
Dynamic equipment, including hard disk, CD, USB flash disk, network, order line etc..User is exited by specific keys
Configuration interface enters into next execution step.
In above-mentioned steps, the startup of operating system is realized, comprised the following steps that suitable according to the startup of user configuring
Sequence, system starting module is attempted operating system nucleus from media such as hard disk, CD, USB flash disk, networks successively
File is loaded into internal memory, and for kernel prepares necessary start-up parameter, then gives kernel by control, from
And the startup work of completion system.After the completion of os starting, module when running in firmware still can be called
The a small amount of function for providing, including system reboot, shutdown etc..
To sum up, presently preferred embodiments of the present invention is these are only, protection model of the invention is not intended to limit
Enclose.All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc.,
Should be included within protection scope of the present invention.
Claims (7)
1. a kind of UEFI firmware implementation methods based on server, it is characterised in that the UEFI firmwares
It is divided into hardware abstraction layer, firmware core layer, device protocol layer and firmware application layer；
The hardware abstraction layer includes processor drive module, chipset drive module and peripheral hardware drive module,
The processor drive module is initialized to processor in server and internal memory, and provides access process device
With the interface of internal memory；The chipset drive module is carried out initially to the Central-South north bridge chips of server hardware platform
Change, including bridge piece works with the initialization of each peripheral control unit and resource allocation in itself, and access south is provided
The interface of north bridge；The peripheral hardware drive module drives the peripheral hardware connected on server master board；
The firmware core layer includes firmware core loading module, firmware nucleus module and architecture function mould
Block, firmware core loading module loading firmware nucleus module, and for it prepares running environment；Firmware core mould
Runtime Service tables are serviced when the startup service Boot Service that block is set up in UEFI specification are with operation,
Other modules in loading, operation firmware core layer, the interaction in managed firmware core layer between each module,
Internal memory in management server, realizes and safeguards tick interrupt and case mechanism, realizes and safeguard firmware application
Level of privilege mechanism, realizes the administrative mechanism of the Protocol defined in UEFI specification, realizes that UEFI specification will
Realistic existing Mechanism and FunctionsDNA；Architectural protocol in architecture Implement of Function Module UEFI specification
Architectural Protocol, architecture functional module includes multiple functional modules, and each module realizes one
Architectural Protocol；Each Architectural Protocol includes some infrastructure service interfaces, for solid
Other functions module in part is called；
The device protocol layer includes bus protocol module and network protocol stack module, and bus protocol module is realized
Various bus protocols, and the access interface of bus is issued by the Protocol mechanism in UEFI specification；Network
Protocol stack module realizes network protocol stack；
Firmware application layer include device scan module, man-machine interface display module, system-monitoring module,
Module and Shell modules when system starting module, file system module, kernel loads module, operation；Equipment
Scan module enumerates all peripheral hardwares in server, and is peripheral assignment resource, by external equipment with it is corresponding
Peripheral hardware drive module is attached；Man-machine interface display module is connected with video driver module, realizes all aobvious
Show the interface of correlation；Temperature of processor, system voltage and fan in system-monitoring module real-time detection server
Rotating speed, the rotating speed of fan is adjusted according to temperature of processor, when temperature of processor is too high, forced shutdown；
System starting module provides a patterned user configuring interface, and user is looked into by way of menu operation
See system information and system is configured.Finally according to the selection of user, from storage device start-up operation system
System；File system module realizes FAT/FAT32, EXT2/3/4 and ISO9660 file system, supports to text
The read operation of part；The final stage that kernel loads module starts in system, from the storage medium of server
Kernel file is loaded into internal memory, and for kernel file prepares necessary parameter, then branches to kernel
Entrance performs kernel file；Module realizes that the confession operating system of UEFI specification definition runs rank at it during operation
Runtime interfaces during the operation of segment call, and operating system and the firmware definition of processor platform interface；
Shell is the command line environment that UEFI firmwares are provided, based on a large amount of interfaces clothes provided in UEFI firmwares
Business, develops the various firmware application programs under Shell；
On the basis of above-mentioned UEFI firmwares, the method comprises the following steps：
Step one, server electrifying startup, perform the processor drive module, initialization processor, interior
Deposit, and the interface of access process device and internal memory is provided, so as to set up the Essential Environment of firmware operation；
Step 2, the execution firmware core loading module, internal memory is copied to by UEFI firmware codes, and right
Firmware is decompressed, loading firmware nucleus module；
Step 3, execution firmware nucleus module, set up the infrastructure service of UEFI firmwares；Initialization UEFI's
System service, completes the initialization of agent list when UEFI system tables, UEFI start agent list and UEFI operations,
All functional modules in UEFI firmwares can call the system service；
Step 4, loading UEFI firmware functional modules, including architecture functional module, device protocol module；
Step 5, loading peripheral hardware scan module, scanning peripheral hardware and be peripheral assignment system resource, loading peripheral hardware
Drive module, completes peripheral hardware initialization；
Each module, start-up operation system in step 6, load and execution firmware application layer.
In above-mentioned steps, the firmware application module in step (6) in firmware nucleus module loading firmware volume, and in fact
Existing corresponding firmware function.Including display module, system-monitoring module, file system module, kernel loads
Module, Shell modules, system starting module when module, operation, finally, firmware nucleus module is by control
System starting module is given, prepares start-up operation system.
2. a kind of UEFI firmware implementation methods based on server as claimed in claim 1, its feature exists
In, in the step one, after server electrifying startup, execution processor drive module, now in server
Internal memory does not complete initialization also, and FLASH chip of the processor drive module using connection in the server is run；
Processor drive module realizes processor in server, cache Cache, internal memory, bypass conversion buffered
The initialization of TLB, realizes the initialization of Memory Controller Hub MCU, SMBUS and internal memory, configuration internal memory ground
Location window, and the interface for accessing the parts such as CPU, Cache, internal memory is provided, processor drive module will also be just
Serial port module in beginningization processor, there is provided the debugging of the UEFI firmware codes.
3. a kind of UEFI firmware implementation methods based on server as claimed in claim 2, its feature exists
In, firmware core loading module is performed in the step 2, Installed System Memory is initialized good in server,
Now firmware code can be run in internal memory to accelerate the speed of service, have consolidating for compression in the FLASH
Part is rolled up, and during the firmware volume of compression is copied to internal memory by firmware core loading module from FLASH, and is solved
Pressure；After decompressing successfully, HOB tables of data is created in internal memory, storage processor, internal memory and FLASH's
Information.
4. a kind of UEFI firmware implementation methods based on server as claimed in claim 3, its feature exists
In, firmware nucleus module is performed in the step 3, the system service of the initialization UEFI is adjusted including code
Examination, memory management, the management of UEFI mirror images, HOB, UEFI clock, FLASH are accessed, decompress, consolidated
The parsing of part volume, UEFI events, task priority, UEFI Protocol management, UEFI variable access.
5. a kind of UEFI firmware implementation methods based on server as claimed in claim 4, its feature exists
In, the functional module of firmware nucleus module loading firmware in the step 4, firmware nucleus module is by retrieval
The firmware volume, searches functional module therein successively, and is loaded into internal memory, each functional module
An executable mirror image for PE/ELF forms is all compiled into, firmware nucleus module needs analytical capabilities module mirror
Picture, is then loaded at the particular address of internal memory, and jumps to entrance function, the entrance function of functional module
After the completion of execution, firmware nucleus module is returned to, firmware nucleus module proceeds next functional module
Loading.
6. a kind of UEFI firmware implementation methods based on server as claimed in claim 5, its feature exists
In the step 4, the architecture functional module major function is realized in UEFI specification
Architectural Protocol, each Architectural Protocol is realized by a module；
Device protocol layer module mainly realize accessing PCI/PCIE, SATA, PATA, SCSI, USB,
The function interface of ISA, SMBUS and LPCBUS bus, and be encapsulated in Protocol for other functions mould
Block is called, and a kind of bus protocol is realized using a module.
7. a kind of UEFI firmware implementation methods based on server as claimed in claim 6, its feature exists
In in the step 5, peripheral hardware includes north and south bridge chip, video card, SATA/IDE controllers, USB controls
Device, SMBUS controllers, LPC controller, keyboard, network interface card.
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