CN103176829A - Method and device for executing driving program of peripheral equipment by unified extensible firmware interface (UEFI) kernel - Google Patents
Method and device for executing driving program of peripheral equipment by unified extensible firmware interface (UEFI) kernel Download PDFInfo
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- CN103176829A CN103176829A CN2013101414419A CN201310141441A CN103176829A CN 103176829 A CN103176829 A CN 103176829A CN 2013101414419 A CN2013101414419 A CN 2013101414419A CN 201310141441 A CN201310141441 A CN 201310141441A CN 103176829 A CN103176829 A CN 103176829A
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Abstract
The embodiment of the invention discloses a method and device for executing a driving program of peripheral equipment by a unified extensible firmware interface (UEFI) kernel. By the method and the device, the required driving program can be loaded quickly, so that the starting speed of a computer system is increased. The method comprises the following steps of: distributing an inlet address for the driving program to be distributed according to a preset distribution rule; storing the driving program to be distributed into a corresponding inlet address table according to the inlet address; and when the driving program needs to be loaded, searching a target driving program according to a preset calculation rule. Compared with the prior art, the method has the advantages that not all the driving programs need to be loaded. Different inlet addresses are distributed for the driving programs according to the preset distribution rule; when a certain driving program needs to be loaded, the inlet address where the target driving program is positioned is calculated according to the preset calculation rule, and the target driving program is extracted from the corresponding inlet, so that the needed driving program can be quickly searched; and the starting speed of the computer system is increased.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method and device that a kind of UEFI kernel is carried out peripheral device drivers.
Background technology
The startup flow process of computer system is divided into 5 stages, be followed successively by pretrigger (PEI, Pre-EFIInitialization), drive running environment (DXE, Driver Execution Environment), Boot equipment is selected (BDS, Boot Device Select), operating system (OS, Operating System) Boot and OS running environment Runtime.
The DXE stage is the running environment of unified Extensible Firmware Interface (UEFI, Unified Extensible Firmware Interface) driver, is also the Main Stage of UEFI firmware operation.When this stage begins, the Driver Dispatcher of UEFI kernel will enumerate the driver of all peripherals, and judge its relation of interdependence, loading system successively.After all UEFI drove and successfully load, the UEFI firmware was namely completed startup preliminary work, can continue to move other UEFI application programs or begin to guide operating system.
Enumerate because the UEFI kernel adopts the driver that the mode of searching starts all peripherals, travelling speed is slower, finally affects the toggle speed of computer system.
Summary of the invention
Method and device that the embodiment of the present invention provides a kind of UEFI kernel to carry out peripheral device drivers can arrive the driver that needs by fast finding, improve computer system starting speed.
The method that a kind of UEFI kernel that the embodiment of the present invention provides is carried out peripheral device drivers comprises:
Be driver distribution to be allocated entry address according to the preset dispense rule;
According to the entry address, driver to be allocated is deposited in the table of corresponding entry address;
When needs load driver program, obtain the entry address of purpose driver according to the computation rule that presets;
According to the entry address, search the purpose driver.
Optionally,
Comprise for driver distribution to be allocated entry address according to preset dispense rule:
Obtain at least two facility information data of a certain peripherals;
At least two facility information data are processed obtained logical value;
Logical value is distributed to this driver as the entry address.
Optionally,
At least two facility information data are processed are obtained logical value and comprise:
At least two facility information data are carried out superposition, obtain operation result;
Above-mentioned operation result is removed remaining computing, obtain except remaining operation result as logical value.
Optionally,
After being distributed to this driver step as the entry address, logical value also comprises:
According to the entry address, deposit driver to be allocated in corresponding entrance and comprise:
Whether the decision logic value repeats;
If the first logical value and the second logical value repeat, set up overflow table at entry address table end corresponding to the first logical value;
The driver that the second logical value is corresponding leaves in described overflow table.
Optionally,
When needs load driver program, search the target drives program and comprise according to presetting computation rule:
Obtain at least two facility information data of equipment to be driven;
At least two facility information data are processed obtained logical value;
Logical value is searched the target drives program as the entry address.
Optionally,
At least two facility information data are processed are obtained logical value and comprise:
At least two facility information data are carried out superposition, obtain operation result;
Operation result is removed remaining computing, obtain except remaining operation result as logical value.
Optionally,
According to the entry address, search the purpose driver and comprise;
If do not find described target drives program, enter in the overflow table of described entrance end and search;
If do not find described target drives program in described overflow table, carry out abnormality processing.
Optionally,
The facility information data comprise the ID of equipment vendors, device id and/or equipment chain number.
The embodiment of the present invention also provides a kind of UEFI kernel to carry out the device of peripheral device drivers, specifically comprises:
Allocation units, being used for is driver distribution to be allocated entry address according to the preset dispense rule;
Deposit the unit in, be used for according to the entry address, driver to be allocated is deposited in the table of corresponding entry address;
Computing unit is used for obtaining the entry address of purpose driver according to the computation rule that presets when needs load driver program;
Search the unit, be used for according to the entry address, search the purpose driver.
Optionally,
Computing unit comprises:
The first acquiring unit is at least two facility information data obtaining a certain peripherals;
The first superposition subelement is used at least two facility information data are carried out superposition, obtains operation result;
First except remaining operator unit, is used for operation result is removed remaining computing, obtains except remaining operation result as logical value;
Searching the unit comprises:
Second acquisition unit is at least two facility information data obtaining a certain peripherals;
The second superposition subelement is used at least two facility information data are carried out superposition, obtains operation result;
Second except remaining operator unit, is used for operation result is removed remaining computing, obtains except remaining operation result as logical value.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
The inventive method is driver distribution to be allocated entry address according to the preset dispense rule; Then according to the entry address, driver to be allocated is deposited in the table of corresponding entry address; When needs load driver program, search the target drives program according to presetting computation rule.Compared with prior art, do not need to load all drivers.Because the present invention is the different entry address of each driver distribution according to the allocation rule that presets, when a certain driver of needs, only need to extract the purpose driver in the entrance of correspondence according to predetermined search rule gets final product, thereby fast finding improves computer system starting speed to the driver that needs.
Description of drawings
A kind of UEFI kernel that Fig. 1 provides for the embodiment of the present invention is carried out an embodiment process flow diagram of the method for peripheral device drivers;
A kind of UEFI kernel that Fig. 2 provides for the embodiment of the present invention is carried out another embodiment process flow diagram of the method for peripheral device drivers;
A kind of UEFI kernel that Fig. 3 provides for the embodiment of the present invention is carried out the structural representation of the device embodiment of peripheral device drivers.
Embodiment
Method and device that the embodiment of the present invention provides a kind of UEFI kernel to carry out peripheral device drivers can arrive the driver that needs by fast finding, improve computer system starting speed.
See also Fig. 1, the embodiment that a kind of UEFI kernel that the embodiment of the present invention provides is carried out the method for peripheral device drivers comprises:
101, be driver distribution to be allocated entry address according to the preset dispense rule;
In the present embodiment, the UEFI kernel distributes unique entry address for driver corresponding to each driving arrangement according to the preset dispense rule.
102, according to the entry address, driver to be allocated is deposited in the table of corresponding entry address;
In the present embodiment, the result that the UEFI kernel distributes according to step 101 deposits into each driver to be allocated in corresponding entry address table.
103, when needs load driver program, obtain the entry address of purpose driver according to the computation rule that presets;
In the present embodiment, when needs load driver program, obtain the entry address of purpose driver according to the computation rule that presets.
104, according to the entry address, search the purpose driver.
In the present embodiment, the UEFI kernel is driver distribution to be allocated entry address according to the preset dispense rule; Then according to the entry address, driver to be allocated is deposited in the table of corresponding entry address; When needs load driver program, search the target drives program according to presetting computation rule.Compared with prior art, do not need to load all drivers.Because the present invention is the different entry address of each driver distribution according to the allocation rule that presets, when needs load a certain driver, only need to calculate according to predetermined computation rule the entry address at target drives program place, extracting the purpose driver in the entrance of correspondence gets final product, thereby fast finding improves computer system starting speed to the driver that needs.
Embodiment of method that a kind of UEFI kernel that the above provides the embodiment of the present invention is carried out peripheral device drivers is illustrated, the below sees also Fig. 2, and another embodiment of method that a kind of UEFI kernel that the embodiment of the present invention provides is carried out peripheral device drivers comprises:
201, obtain at least two facility information data of a certain peripherals;
In the present embodiment, the UEFI kernel obtains the plural facility information of a certain peripherals, and wherein the facility information data can comprise the ID of equipment vendors, device id and/or equipment chain number.
202, at least two facility information data are carried out superposition, obtain operation result;
In the present embodiment, for example certain ID of equipment vendors and product IDs are respectively 0x3923 and 0x12C0, and product ID is 2306020E.
At first the ID of equipment vendors, device product ID and sequence number are carried out superposition, consider that the ID of equipment vendors and product IDs are 4 hexadecimal digits, thus select product ID thereafter 4 hexadecimal digits carry out computing: 3923+12C0+020E=4DF1.
203, above-mentioned operation result is removed remaining computing, obtain except remaining operation result as logical value;
In the present embodiment, the result that step 202 is obtained is removed remaining computing:
Need to prove, use hash function: f(key)=mod(key, m) its objective is key word pockety is gathered in the storage space of certain limit, m generally gets prime number.
Suppose m=97:
f(4DF1)=mod(4DF1，97)=68。
204, logical value is distributed to this driver as the entry address;
In this enforcement, the logical value that step 203 obtains is 68, and can to leave location number in be in 68 entry address table in the driver entry address of this equipment so.
205, whether the decision logic value repeats;
In the present embodiment, if the first logical value and the second logical value repeat, execution in step 206 so, otherwise execution in step 208.
If 206 first logical values and the second logical value repeat, set up overflow table at entrance corresponding to the first logical value;
207, the driver that the second logical value is corresponding leaves in described overflow table;
208, according to the entry address, driver to be allocated is deposited in the table of corresponding entry address;
In the present embodiment, the result that the UEFI kernel distributes according to step 101 deposits into each driver to be allocated in corresponding entry address table.
209, when needs load driver program, obtain at least two facility information data of equipment to be driven;
210, at least two facility information data are carried out superposition, obtain operation result;
211, above-mentioned operation result is removed remaining computing, obtain except remaining operation result as logical value;
Step 209 and step 210 and step 202 and 203 methods are identical, do not do at this and give unnecessary details.
212, logical value is searched the target drives program as the entry address;
In the present embodiment, according to the entry address that step 210 obtains, can find the target drives program at once.
If 213 do not find the target drives program, enter in the overflow table of this entrance and search;
In the present embodiment, due to the logical value that exist to repeat, so may can't find all drivers in entrance, if do not find the target drives program, enter in the overflow table of this entrance and search.
If 214 do not find the target drives program in overflow table, carry out abnormality processing.
In the present embodiment, above-mentioned abnormality processing can be sent miscue by the UEFI kernel, or points out and do not find Available drivers, does not do concrete restriction at this.
In the present embodiment, at first the UEFI kernel obtains at least two facility information data of a certain peripherals, then at least two facility information data is carried out superposition, and operation result is removed remaining computing, obtains except remaining operation result as logical value; Logical value is distributed to this driver as the entry address; Whether the decision logic value repeats; If the first logical value and the second logical value repeat, set up overflow table at entrance corresponding to the first logical value; The driver that the second logical value is corresponding leaves in described overflow table.Two facility information data are carried out in turn overlap-add procedure and except remaining processing, obtained logical value, greatly reduce the probability of entry address conflict due to the method that adopts the combination hash; Also can newly-built overflow table even situation that logical value repeats occurs, driver corresponding to logical value that repeats is stored in overflow table.
When needs load driver program, the UEFI kernel obtains at least two facility information data of equipment to be driven; At least two facility information data are carried out superposition, above-mentioned operation result is removed remaining computing, obtain except remaining operation result as logical value; Logical value is searched the target drives program as the entry address.If do not find the target drives program, enter in the overflow table of this entrance and search; If do not find the target drives program in overflow table, carry out abnormality processing.When needs load driver program, only need obtain at least two facility information data of this peripherals, then at least two facility information data are carried out superposition, operation result is removed remaining computing, obtain except remaining operation result as logical value.Then search as the entry address with this logical value and get final product.Can find rapidly the entrance of device driver through simple computation, significantly promote the UEFI kernel to the operating efficiency of peripheral device drivers.If fruit is not found in entrance, can also enter in corresponding overflow table and search, if also do not find, computing machine can send miscue.
The method that a kind of UEFI kernel that the above provides the embodiment of the present invention is carried out peripheral device drivers is illustrated, and the below sees also Fig. 3, and the device that a kind of UEFI kernel that the embodiment of the present invention provides is carried out peripheral device drivers specifically comprises:
In the present embodiment, allocation units 301 distribute unique entry address for driver corresponding to each driving arrangement according to the preset dispense rule.
When needs load driver program, computing unit 303 obtains the entry address of purpose driver according to the computation rule that presets.
At last, search unit 304 according to the entry address, search the purpose driver.
In the present embodiment, allocation units 301 are driver distribution to be allocated entry address according to the preset dispense rule; Then by depositing unit 302 according to the entry address, deposit driver to be allocated in corresponding entrance; When needs load driver program, computing unit 303 calculates the entry address according to presetting computation rule, then searches the target drives program by searching unit 304.Compared with prior art, computing machine does not need to load all drivers.Because the present invention is the different entry address of each driver distribution according to the allocation rule that presets, when a certain driver of needs, only need to extract the purpose driver in the entrance of correspondence according to predetermined search rule gets final product, thereby fast finding improves computer system starting speed to the driver that needs.
In the device of a kind of UEFI kernel execution peripheral device drivers that the embodiment of the present invention provides, allocation units 302 comprise:
The first superposition subelement 3011 is used at least two facility information data are carried out superposition, obtains operation result;
First except remaining operator unit 3012, is used for operation result remove remaining computing, obtains removing remaining operation result as logical value;
The first acquiring unit 3013 is at least two facility information data obtaining a certain peripherals;
The second superposition subelement 3031 is used at least two facility information data are carried out superposition, obtains operation result;
Second except remaining operator unit 3032, is used for operation result remove remaining computing, obtains removing remaining operation result as logical value;
The below is with an example in actual applications, and a kind of UEFI kernel that the embodiment of the present invention is provided carries out that in the device embodiment of peripheral device drivers, the correspondence between unit is described.
For example certain ID of equipment vendors and product IDs are respectively 0x3923 and 0x12C0, and product ID is 2306020E.
At first by the first superposition subelement 3011, the ID of equipment vendors, device product ID and sequence number are carried out superposition, consider that the ID of equipment vendors and product IDs are 4 hexadecimal digits, thus select product ID thereafter 4 hexadecimal digits carry out computing: 3923+12C0+020E=4DF1
Then remove remaining computing by first except remaining operator 3012 pairs of the unit result that obtains:
Need to prove, use hash function: f(key)=mod(key, m) its objective is key word pockety is gathered in the storage space of certain limit, m generally gets prime number.
Suppose m=97:
f(4DF1)=mod(4DF1，97)=68
The logical value that obtains is 68, and can to leave location number in be in 68 entry address table in the driver entry address of this equipment so.
Whether the decision logic value repeats;
If the first logical value and the second logical value repeat, set up overflow table at entrance corresponding to the first logical value; The driver that the second logical value is corresponding leaves in described overflow table.
When needs load driver program, obtain at least two facility information data of equipment to be driven;
At first carry out superposition by 3031 pairs at least two facility information data of the second superposition subelement, obtain operation result; Remove the above-mentioned operation result in 3032 pairs of unit of remaining operator by second again and remove remaining computing, obtain removing remaining operation result as logical value, logical value is searched the target drives program as the entry address.
Find the target drives program by searching unit 304 at last.If do not find the target drives program, enter in the overflow table of this entrance and search;
In the present embodiment, due to the logical value that exist to repeat, so may can't find all drivers in entrance, if do not find the target drives program, enter in the overflow table of this entrance and search.If do not find the target drives program in overflow table, carry out abnormality processing.Can send miscue by computing machine, or point out and do not find Available drivers, not do concrete restriction at this.
In the present embodiment, at first obtained at least two facility information data of a certain peripherals by the first acquiring unit 3013, then carry out superposition by 3011 pairs at least two facility information data of the first superposition subelement, then by first except remaining operator unit 3012 operation result remove remaining computing, obtain removing remaining operation result as logical value; Logical value is distributed to this driver as the entry address; Whether the decision logic value repeats; If the first logical value and the second logical value repeat, set up overflow table at entrance corresponding to the first logical value; The driver that the second logical value is corresponding leaves in described overflow table.Two facility information data are carried out in turn overlap-add procedure and except remaining processing, obtained logical value, greatly reduce the probability of entry address conflict due to the method that adopts the combination hash; Also can newly-built overflow table even situation that logical value repeats occurs, driver corresponding to logical value that repeats is stored in overflow table.
When needs load driver program, second acquisition unit 3033 obtains at least two facility information data of equipment to be driven; Carry out superposition by 3031 pairs at least two facility information data of the second superposition subelement, then remove the above-mentioned operation result in 3032 pairs of unit of remaining operator by second and remove remaining computing, obtain except remaining operation result as logical value; Logical value is searched the target drives program as the entry address.If search by searching unit 304 the target drives program that do not find at last, enter in the overflow table of this entrance and search; If do not find the target drives program in overflow table, carry out abnormality processing.When needs load driver program, only need obtain at least two facility information data of this peripherals, then at least two facility information data are carried out superposition, operation result is removed remaining computing, obtain except remaining operation result as logical value.Then search as the entry address with this logical value and get final product.Can find rapidly the entrance of device driver through simple computation, significantly promote the UEFI kernel to the operating efficiency of peripheral device drivers.If fruit is not found in entrance, can also enter in corresponding overflow table and search, if also do not find, computing machine can send miscue.
The those skilled in the art can be well understood to, and is the convenience described and succinct, the system of foregoing description, and the specific works process of device and unit can with reference to the corresponding process in preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual the realization, other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be also physically to separate, and the parts that show as the unit can be or can not be also physical locations, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in a computer read/write memory medium.Based on such understanding, part or all or part of of this technical scheme that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: the various media that can be program code stored such as USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the method for a UEFI kernel execution peripheral device drivers, is characterized in that, comprising:
Be driver distribution to be allocated entry address according to the preset dispense rule;
According to described entry address, described driver to be allocated is deposited in the table of corresponding entry address;
When needs load driver program, obtain the entry address of purpose driver according to the computation rule that presets;
According to the entry address, search the purpose driver.
2. UEFI kernel according to claim 1 is carried out the method for peripheral device drivers, it is characterized in that,
Describedly comprise for driver distribution to be allocated entry address according to preset dispense rule:
Obtain at least two facility information data of a certain peripherals;
Described at least two facility information data are processed obtained logical value;
Described logical value is distributed to described driver as the entry address.
3. UEFI kernel according to claim 2 is carried out the method for peripheral device drivers, it is characterized in that,
Described at least two facility information data are processed are obtained logical value and comprise:
Described at least two facility information data are carried out superposition, obtain operation result;
Described operation result is removed remaining computing, obtain except remaining operation result as logical value.
4. UEFI kernel according to claim 3 is carried out the method for peripheral device drivers, it is characterized in that,
Described according to described entry address, deposit described driver to be allocated in corresponding entry address table and comprise:
Whether the decision logic value repeats;
If the first logical value and the second logical value repeat, set up overflow table at entry address table end corresponding to described the first logical value;
Driver corresponding to described the second logical value left in described overflow table.
5. UEFI kernel according to claim 4 is carried out the method for peripheral device drivers, it is characterized in that,
Described when needs load driver program, search the target drives program and comprise according to presetting computation rule:
Obtain at least two facility information data of equipment to be driven;
Described at least two facility information data are processed obtained logical value;
Described logical value is searched the target drives program as the entry address.
6. UEFI kernel according to claim 5 is carried out the method for peripheral device drivers, it is characterized in that,
Described described at least two facility information data are processed obtains logical value and comprises:
Described at least two facility information data are carried out superposition, obtain operation result;
Described operation result is removed remaining computing, obtain except remaining operation result as logical value.
7. UEFI kernel according to claim 6 is carried out the method for peripheral device drivers, it is characterized in that,
Described according to the entry address, search the purpose driver and comprise;
If do not find described target drives program, enter in the overflow table of described entrance end and search;
If do not find described target drives program in described overflow table, carry out abnormality processing.
8. the method for the described UEFI kernel execution of any one peripheral device drivers according to claim 1 to 7, is characterized in that,
Described facility information data comprise the ID of equipment vendors, device id and/or equipment chain number.
9. the device of a UEFI kernel execution peripheral device drivers, is characterized in that, comprising:
Allocation units, being used for is driver distribution to be allocated entry address according to the preset dispense rule;
Deposit the unit in, be used for according to described entry address, described driver to be allocated is deposited in the table of corresponding entry address;
Computing unit is used for obtaining the entry address of purpose driver according to the computation rule that presets when needs load driver program;
Search the unit, be used for according to the entry address, search the purpose driver.
10. UEFI kernel according to claim 9 is carried out the device of peripheral device drivers, it is characterized in that,
Described allocation units comprise:
The first acquiring unit is at least two facility information data obtaining a certain peripherals;
The first superposition subelement is used at least two facility information data are carried out superposition, obtains operation result;
First except remaining operator unit, is used for described operation result is removed remaining computing, obtains except remaining operation result as logical value;
The described unit of searching comprises:
Second acquisition unit is at least two facility information data obtaining a certain peripherals;
The second superposition subelement is used at least two facility information data are carried out superposition, obtains operation result;
Second except remaining operator unit, is used for described operation result is removed remaining computing, obtains except remaining operation result as logical value.
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| CN105094866A (en) * | 2014-05-12 | 2015-11-25 | 联想(北京)有限公司 | Application program boot method and electronic device |
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