CN1707442A - Method for recoverying basic inputting and outputting system chip - Google Patents
Method for recoverying basic inputting and outputting system chip Download PDFInfo
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- CN1707442A CN1707442A CN 200510056887 CN200510056887A CN1707442A CN 1707442 A CN1707442 A CN 1707442A CN 200510056887 CN200510056887 CN 200510056887 CN 200510056887 A CN200510056887 A CN 200510056887A CN 1707442 A CN1707442 A CN 1707442A
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Abstract
The present invention discloses BIOS chip restoring method, and the BIOS chip receives write protection signal from the mainboard and set as valid normally. The present invention features that the method also includes: A. informing the mainboard to set the write protection signal as invalid in case of detecting the damaged BIOS content in starting the computer system with the BIOS chip; B. starting the hard disc with the BIOS chip to read out the back-up BIOS data stored in the hard disc in advance and to update the BIOS content according to the read out back-up BIOS data; and C. informing the mainboard that the write protection signal is valid with the BIOS chip. Applying the said method can realize the automatic restoring of BIOS chip data and protect BIOS chip effectively.
Description
Technical field
The present invention relates to Basic Input or Output System (BIOS) (BIOS, Basic InputOutput System) resist technology, the particularly restoration methods of BIOS chip of PC (PC).
Background technology
In PC, BIOS is the control program in Erarable Programmable Read only Memory (EPROM) chip that is solidificated on the computer motherboard, comprise: the most important basic input/output routine of computing machine, system's configuration information, startup power on self detection program and system start-up bootstrap routine etc., the EPROM chip of this storage bios program is called as the BIOS chip.Bios program provides basic, the most direct hardware controls for computing machine, the primitive operation of computing machine is all finished according to the BIOS content, as the important component part of computing machine, the stability that the BIOS function realizes directly has influence on the normal use of computing machine.
Usually, the BIOS chip receives write protect signal from external circuit, be changed under this write protect signal normal condition effectively, thereby the BIOS chip can't refresh.When the BIOS of mainboard chip is subjected to accidental destruction, such as: BIOS upgrading failure, be subjected to destruction such as virus and cause that parameter is lost, damage etc., will produce computing machine and can't start shooting and faults such as startup, job insecurity.When this type of computer failure took place, common computer user can't deal with problems usually, used thereby have a strong impact on the user.Therefore, the BIOS resist technology has become the important content of current PC field product development.
At present, industry popular B IOS protection mechanism is two BIOS technology, and the ultimate principle that this technology realizes is: two BIOS chips are set on mainboard, when wherein a BIOS chip is destroyed, enable another piece BIOS chip immediately automatically.Perhaps, manually recover the content in the BIOS chip, need this moment to make the DOS boot disk of preserving BIOS ROMPaq and BIOS Backup Data in advance, will use the program in this DOS boot disk that the BIOS chip is refreshed after computing machine powers on.
But also there is certain limitation in above-mentioned two kinds of existing BIOS resist technologies.If adopt two BIOS technology, then must increase hardware circuit, not only to take originally not abundant mainboard space, development trend highly integrated with PC, miniaturization runs in the opposite direction, and certainly will will increase hardware cost, reduces product competitiveness.If adopt the mode of manually recovering the BIOS content, then need professional and technical personnel's participation, for the common computer user, then be not feasible measure.
In sum, have the realization of BIOS resist technology now or depend on additional hardware device, cost of products is increased, or have too much artificial participation factor, domestic consumer can't be implemented, all be unsuitable for extensive popularization.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of restoration methods of BIOS chip, finishes the rejuvenation of BIOS chip automatically, effectively protects the BIOS content, and needn't increase cost of products.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of restoration methods of BIOS chip, described BIOS chip receives the write protect signal from mainboard, is changed under this write protect signal normal condition effectively, and this method also comprises:
During A. described BIOS chip enable computer system, detect self BIOS content destroyed after, it is invalid that the notice mainboard is put described write protect signal;
B. described BIOS chip enable hard disk reads the BIOS Backup Data of preserving in advance in the hard disk that is started, and refreshes the BIOS content of self according to the BIOS Backup Data that is read;
C. described BIOS chip informing mainboard is put described write protect signal for effective.
Wherein, described BIOS chip comprises bootstrap block (BootBlock) part and main Basic Input or Output System (BIOS) (MainBIOS) part;
Described steps A is: when described BootBlock partly started computer system, after the BIOS content that detects BootBlock part or MainBIOS part was destroyed, it was invalid that the notice mainboard is put described write protect signal;
Described step B is: described BootBlock partly starts hard disk, reads the BIOS Backup Data of preserving in advance in the hard disk that is started, and refreshes the BIOS content of described BootBlock part and MainBIOS part according to the BIOS Backup Data that is read;
Described step C is: described BootBlock partly notifies mainboard to put described write protect signal for effective.
Wherein, this method further comprises: the startup hard disc module is set in described BootBlock;
Among the step B, BootBlock partly calls described startup hard disc module, and this startup hard disc module is sent to internal memory with the startup hard disk program of self, and internal memory comes the initialization hard disk and starts hard disk by moving this startup hard disk program.
Wherein, this method further comprises: BIOS is set in described hard disk recovers module automatically;
Among the step B, behind the described startup hard disk program start hard disk, call described BIOS and recover module automatically, this BIOS recovers the BIOS automatic recovery program of module decompression self automatically to internal memory, internal memory reads the BIOS Backup Data of preserving in advance in the hard disk by moving this BIOS automatic recovery program, and refreshes the BIOS content of described BootBlock part and MainBIOS part according to the BIOS Backup Data that is read.
Wherein, after described step C, this method further comprises: described BootBlock partly restarts computer system, returns steps A.
Wherein, this method further comprises: create in described hard disk in advance for the sightless hard disk protection Space H PA that is used to preserve the BIOS Backup Data of user;
Among the step B, the described method that reads the BIOS Backup Data of preserving in advance in the hard disk is: open described HPA, visit this HPA and read described BIOS Backup Data, close this HPA.
By such scheme as can be seen; key of the present invention is: the BIOS chip is when startup self-detection; after finding that self BIOS content is destroyed; it is invalid putting write protect signal; start hard disk and also read the BIOS Backup Data that hard disk is preserved in advance, again the content of BIOS chip is refreshed and put write protect signal for effectively.
Therefore; the restoration methods of BIOS chip provided by the present invention; can effectively control the write protect signal of BIOS chip; function such as realize the automatic self check of BIOS chip, recover automatically, restart automatically; whole process need not user's artificial participation, makes things convenient for domestic consumer to use, and can guarantee refreshing under the necessary situation of BIOS chip; can when normal the use, carry out write-protect again to the BIOS chip, thus a kind of active of can yet be regarded as, flexible, safe BIOS resist technology.
Description of drawings
Fig. 1 is the inventive method one preferred embodiment treatment scheme synoptic diagram.
Embodiment
Main design philosophy of the present invention is: during BIOS chip enable computer system, destroyed if detect self BIOS content, then make self write protect signal invalid and start hard disk.Then, read the BIOS Backup Data of preserving in advance in the hard disk that is started, current BIOS chip is refreshed, thereby finish the BIOS automatic restore procedure.
Fig. 1 is the inventive method one preferred embodiment treatment scheme synoptic diagram.As shown in Figure 1, the concrete processing comprises:
Step 101: during computer starting, the BIOS chip promptly begins power-on self-test (POST) flow process.At this moment, universal input/output interface (GPIO) the output write protect signal that is connected with mainboard south bridge control circuit is effectively given the BIOS chip.
Here; described mainboard south bridge control circuit output control signal is given the GPIO that connects the BIOS chip; this GPIO is changed to effective or invalid according to the write protect signal that will export to the BIOS chip from the control signal of mainboard south bridge control circuit; thereby mainboard is controlled the write-protect of BIOS chip; described write protect signal can effectively also to can be high level effective for low level, and the present invention does not limit.
As everyone knows, the BIOS chip comprises two main ingredients: bootstrap block (BootBlock) part and main body BIOS (MainBIOS) part.The data that described BootBlock partly preserves are without overcompression and deposit in fixing address space, and described MainBIOS part is then preserved packed data.The part of at first carrying out when described BootBlock partial data is computer system starting, it mainly is responsible for computer hardware is done basic, the simplest initialization, then, the decompression MainBIOS of system partial data, and carry out the MainBIOS partial data that this decompression obtains one by one, thereby start whole computer system.In this step, write protect signal is effective, and BootBlock part and MainBIOS part are all not refreshable.
Step 102: in starting the process of computer system, the BootBlock part detects the BIOS content of self and MainBIOS part automatically, and judges whether described BIOS content is destroyed, if, execution in step 103; Start flow process otherwise enter normal POST, therefore the non-problem that the present invention relates to of subsequent treatment is no longer described.
Step 103:BootBlock partly notifies mainboard to the described GPIO output of step 101 control signal, and it is invalid that this GPIO is changed to write protect signal, and this moment, described BootBlock part and MainBIOS part were all refreshable.
Step 104:BootBlock partially-initialized hard disk starts this and finishes initialized hard disk, reads the BIOS Backup Data that this hard disk is preserved in advance again, and refreshes the BIOS content of BootBlock part and MainBIOS part.
Wherein, can in the BootBlock part, the startup hard disc module be set, after BootBlock part self check discovery BIOS content is destroyed, promptly call described startup hard disc module, by this startup hard disc module self startup hard disk program is sent to internal memory, internal memory is by moving this startup hard disk program initialization acquiescence hard disk and starting this acquiescence hard disk.Here, described information such as acquiescence hard disk address in the described startup hard disk program, so internal memory can finish the initialization of acquiescence hard disk according to information such as described hard disk addresses, thereby start the acquiescence hard disk.
In addition, can also BIOS be set in described hard disk further and recover module automatically, after this hard disk is activated, call described BIOS immediately and recover module automatically, this BIOS recovers the BIOS automatic recovery program of module decompression self automatically to internal memory, internal memory reads the BIOS Backup Data of preserving in advance in institute's startup hard disk by moving this BIOS automatic recovery program, and uses this BIOS Backup Data that the BIOS content of described BootBlock part and MainBIOS part is upgraded.Here, the information such as address that address that the BIOS Backup Data preserves in hard disk and BootBlock part and MainBIOS partly preserve the BIOS content have been described in the described BIOS automatic recovery program, thereby internal memory can read the BIOS Backup Data, and finishes the BIOS content refresh of BootBlock part and MainBIOS part.
In addition, described BIOS Backup Data can be kept in any sector address space in the hard disk.Because the user may delete the BIOS Backup Data because of formatting hard disk or maloperation etc. in computed process.Therefore; for making the BIOS Backup Data safer; can be pre-created for the sightless hard disk protection of user space (HPA; Host Protected Area); and the BIOS Backup Data is kept in this HPA space; when the user used a computer, the HPA space was invisible, and the BIOS Backup Data is difficult for destroyed.When the BIOS Backup Data was kept among the HPA, BIOS recovered the operation that module reads the BIOS Backup Data automatically and comprises: at first open the HPA space of being created, read this BIOS Backup Data, close this HPA space then.Here, described HPA is one section storage space reserving in the hard disk, the storage directory at its place is invisible for the user, the address that HPA preserves the data segment of BIOS Backup Data has been described in the above-mentioned BIOS automatic recovery program, used address designation when promptly opening described HPA space, therefore, internal memory can read the BIOS Backup Data equally by moving this BIOS automatic recovery program.The specific implementation method of described HPA belongs to prior art, and the problem of non-the present invention solution, does not therefore set forth.
Step 105:BootBlock partly notifies mainboard to described GPIO output control signal, and it is effective to make this GPIO put write protect signal, and this moment, described BootBlock part and MainBIOS were partly all by write-protect, finished to work as pre-treatment.
Above treatment scheme can realize the process that the automatic oneself of BIOS chip detects, recovers automatically.After recovering the BIOS content, restart system in order further to make the BIOS chip automatically, remove the human intervention in the system starting process from, make the BIOS chip from start, recover, really invisible to a series of processes such as restarting for the user, guarantee the security of BIOS chip, the BIOS chip can also restart computer system after finishing the BIOS content recovery.Then comprise that further step 106:BootBlock partly restarts computer system after the above-mentioned steps 105, return step 102, thereby reenter in the self check of BIOS chip, the automatic flow process of recovering.
In sum; use the inventive method; when the BIOS chip content is destroyed; can make computer system finish the reparation of BIOS content voluntarily; realize functions such as normal boot-strap, peripheral hardware initialization, system start-up; thereby realize the automatic protection of computer system, improve the security that computing machine uses, the increase that can't bring system cost.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (6)
1, a kind of restoration methods of basic input-output system BIOS chip, described BIOS chip receives the write protect signal from mainboard, is changed under this write protect signal normal condition effectively, it is characterized in that this method also comprises:
During A. described BIOS chip enable computer system, detect self BIOS content destroyed after, it is invalid that the notice mainboard is put described write protect signal;
B. described BIOS chip enable hard disk reads the BIOS Backup Data of preserving in advance in the hard disk that is started, and refreshes the BIOS content of self according to the BIOS Backup Data that is read;
C. described BIOS chip informing mainboard is put described write protect signal for effective.
2, method according to claim 1 is characterized in that, described BIOS chip comprises bootstrap block BootBlock part and main Basic Input or Output System (BIOS) MainBIOS part;
Described steps A is: when described BootBlock partly started computer system, after the BIOS content that detects BootBlock part or MainBIOS part was destroyed, it was invalid that the notice mainboard is put described write protect signal;
Described step B is: described BootBlock partly starts hard disk, reads the BIOS Backup Data of preserving in advance in the hard disk that is started, and refreshes the BIOS content of described BootBlock part and MainBIOS part according to the BIOS Backup Data that is read;
Described step C is: described BootBlock partly notifies mainboard to put described write protect signal for effective.
3, method according to claim 2 is characterized in that, this method further comprises: the startup hard disc module is set in described BootBlock;
Among the step B, BootBlock partly calls described startup hard disc module, and this startup hard disc module is sent to internal memory with the startup hard disk program of self, and internal memory comes the initialization hard disk and starts hard disk by moving this startup hard disk program.
4, method according to claim 3 is characterized in that, this method further comprises: BIOS is set in described hard disk recovers module automatically;
Among the step B, behind the described startup hard disk program start hard disk, call described BIOS and recover module automatically, this BIOS recovers the BIOS automatic recovery program of module decompression self automatically to internal memory, internal memory reads the BIOS Backup Data of preserving in advance in the hard disk by moving this BIOS automatic recovery program, and refreshes the BIOS content of described BootBlock part and MainBIOS part according to the BIOS Backup Data that is read.
5, method according to claim 2 is characterized in that, after described step C, this method further comprises: described BootBlock partly restarts computer system, returns steps A.
6, according to each described method of claim 1 to 5, it is characterized in that this method further comprises: in described hard disk, create in advance for the sightless hard disk protection Space H PA that is used to preserve the BIOS Backup Data of user;
Among the step B, the described method that reads the BIOS Backup Data of preserving in advance in the hard disk is: open described HPA, visit this HPA and read described BIOS Backup Data, close this HPA.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100568877A CN100375049C (en) | 2005-03-28 | 2005-03-28 | Method for recoverying basic inputting and outputting system chip |
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| CNB2005100568877A CN100375049C (en) | 2005-03-28 | 2005-03-28 | Method for recoverying basic inputting and outputting system chip |
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| CN1707442A true CN1707442A (en) | 2005-12-14 |
| CN100375049C CN100375049C (en) | 2008-03-12 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8015449B2 (en) | 2007-12-28 | 2011-09-06 | Asustek Computer Inc. | Computer, and method for error-detecting and booting of BIOS thereof |
| US8055889B2 (en) | 2007-05-11 | 2011-11-08 | Asustek Computer Inc. | BIOS management device and method for managing BIOS setting value |
| CN101303655B (en) * | 2007-05-11 | 2011-12-21 | 华硕电脑股份有限公司 | Device and method for managing basic input/output system |
| CN102339225A (en) * | 2010-07-20 | 2012-02-01 | 鸿富锦精密工业（深圳）有限公司 | BIOS (Basic Input/Output System) refreshing method |
| CN102880527A (en) * | 2011-07-13 | 2013-01-16 | 英业达股份有限公司 | Data recovery method of baseboard management controller |
| CN104572168A (en) * | 2014-09-10 | 2015-04-29 | 中电科技（北京）有限公司 | BIOS (Basic Input/Output System) self-updating protection system and BIOS self-updating protection method |
| CN104598256A (en) * | 2013-10-30 | 2015-05-06 | 鸿富锦精密工业(武汉)有限公司 | Computer BIOS (Basic Input /Output System) recovery system and method |
| CN104657233A (en) * | 2015-01-28 | 2015-05-27 | 加弘科技咨询(上海)有限公司 | Backup restoration method and system for BIOS (Basic Input Output System) boot block in X86 system |
| CN104657232A (en) * | 2013-11-22 | 2015-05-27 | 鸿富锦精密工业(武汉)有限公司 | BIOS automatic recovery system and BIOS automatic recovery method |
| CN105718277A (en) * | 2014-12-05 | 2016-06-29 | 中国长城计算机深圳股份有限公司 | Protection method, device and system for BIOS (Basic Input Output System) update |
| CN106528348A (en) * | 2016-11-18 | 2017-03-22 | 合肥联宝信息技术有限公司 | Method for constructing BIOS of intelligent terminal and BIOS component |
| US9684518B2 (en) | 2011-09-30 | 2017-06-20 | Hewlett-Packard Development Company, L.P. | Option read-only memory use |
| CN108052418A (en) * | 2017-12-21 | 2018-05-18 | 曙光信息产业(北京)有限公司 | A kind of method and apparatus of the backup or recovery of BIOS for blade server |
| CN108229178A (en) * | 2018-01-26 | 2018-06-29 | 郑州云海信息技术有限公司 | BIOS Write-protection methods, device, equipment and computer readable storage medium |
| CN109582375A (en) * | 2018-12-03 | 2019-04-05 | 郑州云海信息技术有限公司 | A kind of storage system BIOS restoration methods and storage system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8055889B2 (en) | 2007-05-11 | 2011-11-08 | Asustek Computer Inc. | BIOS management device and method for managing BIOS setting value |
| CN101303655B (en) * | 2007-05-11 | 2011-12-21 | 华硕电脑股份有限公司 | Device and method for managing basic input/output system |
| US8015449B2 (en) | 2007-12-28 | 2011-09-06 | Asustek Computer Inc. | Computer, and method for error-detecting and booting of BIOS thereof |
| CN102339225A (en) * | 2010-07-20 | 2012-02-01 | 鸿富锦精密工业（深圳）有限公司 | BIOS (Basic Input/Output System) refreshing method |
| CN102880527A (en) * | 2011-07-13 | 2013-01-16 | 英业达股份有限公司 | Data recovery method of baseboard management controller |
| CN103827812B (en) * | 2011-09-30 | 2017-12-15 | 惠普发展公司，有限责任合伙企业 | The use of options read only memory |
| US9684518B2 (en) | 2011-09-30 | 2017-06-20 | Hewlett-Packard Development Company, L.P. | Option read-only memory use |
| CN104598256A (en) * | 2013-10-30 | 2015-05-06 | 鸿富锦精密工业(武汉)有限公司 | Computer BIOS (Basic Input /Output System) recovery system and method |
| CN104657232A (en) * | 2013-11-22 | 2015-05-27 | 鸿富锦精密工业(武汉)有限公司 | BIOS automatic recovery system and BIOS automatic recovery method |
| CN104572168A (en) * | 2014-09-10 | 2015-04-29 | 中电科技（北京）有限公司 | BIOS (Basic Input/Output System) self-updating protection system and BIOS self-updating protection method |
| CN104572168B (en) * | 2014-09-10 | 2018-06-05 | 中电科技（北京）有限公司 | System and method is protected in a kind of BIOS self refreshes |
| CN105718277A (en) * | 2014-12-05 | 2016-06-29 | 中国长城计算机深圳股份有限公司 | Protection method, device and system for BIOS (Basic Input Output System) update |
| CN105718277B (en) * | 2014-12-05 | 2020-04-10 | 中国长城科技集团股份有限公司 | Protection method, device and system for BIOS update |
| CN104657233A (en) * | 2015-01-28 | 2015-05-27 | 加弘科技咨询(上海)有限公司 | Backup restoration method and system for BIOS (Basic Input Output System) boot block in X86 system |
| CN106528348A (en) * | 2016-11-18 | 2017-03-22 | 合肥联宝信息技术有限公司 | Method for constructing BIOS of intelligent terminal and BIOS component |
| CN108052418A (en) * | 2017-12-21 | 2018-05-18 | 曙光信息产业(北京)有限公司 | A kind of method and apparatus of the backup or recovery of BIOS for blade server |
| CN108229178A (en) * | 2018-01-26 | 2018-06-29 | 郑州云海信息技术有限公司 | BIOS Write-protection methods, device, equipment and computer readable storage medium |
| CN109582375A (en) * | 2018-12-03 | 2019-04-05 | 郑州云海信息技术有限公司 | A kind of storage system BIOS restoration methods and storage system |
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