Using system configuration data to customize bios during the boot-up process

• US 6,367,007 B1
• Filed: 02/22/1999
• Issued: 04/02/2002
• Est. Priority Date: 02/22/1999
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Do, Tri M.
• Primary Examiner(s): Heckler, Thomas M.
• Application Number:
  US09/255,029
• Time in Patent Office: 1,135 Days
• Field of Search: 713/42
• US Class Current: 713/2
• CPC Class Codes: G06F 9/4401 Bootstrapping security arrangements therefor G06F21/57

Abstract

A computer includes an electronic storage device that stores configuration data indicating whether a first optional component and a second optional component are installed in the computer. The computer also includes an electronic memory device that stores BIOS code including code sections associated with operation of the first and second optional components. A processor executes the BIOS code and, upon doing so, is programmed to access the configuration data to determine if the first and second optional components are installed, to execute the section of the BIOS code associated with the first optional component only if the first optional component is installed, and to execute the section of the BIOS code associated with the second optional component only if the second optional component is installed.

Claims

1. A computer comprising:

an electronic storage device to store configuration data indicating whether at least a first optional component and a second optional component are installed in the computer;

an electronic memory device to store BIOS code including code sections associated with operation of the first and second optional components; and

a processor to access the configuration data to determine if the first and second optional components are installed, to execute the section of the BIOS code associated with the first optional component only upon determining that the first optional component is installed, and to execute the section of the BIOS code associated with the second optional component only upon determining that the second optional component is installed.

2. The computer of claim 1, wherein the configuration data is stored in consecutive individually addressable storage locations in the electronic storage device.

3. The computer of claim 2, wherein the configuration data begins at a location having a predetermined address offset.

4. The computer of claim 3, wherein the BIOS code instructs the processor to read the configuration data from the predetermined address offset.

5. The computer of claim 1, wherein each byte of configuration data includes multiple bits dedicated to indicating which of corresponding ones of the optional components are installed in the computer.

6. The computer of claim 1, wherein the configuration data includes at least one data bit corresponding to each of the optional components in the group.

7. The computer of claim 6, wherein the value of the data bit indicates whether the corresponding optional component is included in the computer.

8. The computer of claim 1, wherein the electronic storage device also contains custom program code that, when executed with the BIOS code, enables operation of at least one of the optional components.

9. The computer of claim 1, wherein the electronic storage device stores information indicating a checksum value for the configuration data.

10. The computer of claim 1, wherein the electronic storage device comprises writable, read-only memory (ROM).

11. The computer of claim 10, wherein the electronic storage device comprises Flash ROM.

12. An electronic storage device containing executable BIOS code that, when executed by a computer processor, causes the processor to:

access a data storage device to obtain configuration data identifying optional components that are installed in the computer;

execute those portions of the BIOS code that are associated with the optional components identified as being installed in the computer; and

not execute those portions of the BIOS code that are associated with the optional components not installed in the computer.

13. The storage device of claim 12, wherein the BIOS code instructs the processor to read at least one bit of configuration data for each of the optional components in the group.

14. The storage device of claim 13, wherein the BIOS code instructs the processor to execute or not to execute the portion of the BIOS code associated with each of the optional components based on the value of the corresponding bit of configuration data.

15. The storage device of claim 13, wherein the writable, read-only device comprises Flash ROM.

16. The storage device of claim 12, wherein the BIOS code instructs the processor to read configuration data from individually addressable storage locations beginning at a location having a predetermined address offset.

17. The storage device of claim 12, wherein the BIOS code instructs the processor to access the data storage device to obtain information indicating a checksum for the configuration data.

18. The storage device of claim 12, wherein the BIOS code instructs the processor to obtain the configuration data from a writable, read-only device.

19. An electronic storage device in a computer system comprising:

individually addressable storage locations; and

configuration data stored in the storage locations, beginning at a location having a predetermined address offset, at least some bits of which are stored at bit addresses dedicated to storing information indicating whether particular optional system components are installed in the computer system.

20. The storage device of claim 19, wherein the configuration data is stored in consecutive ones of the storage locations.

21. The storage device of claim 20, wherein the address of the first one of the consecutive storage locations is stored in another storage device in the computer.

22. The storage device of claim 19, further comprising data stored at one of the storage locations to indicate a checksum value for the configuration data.

23. The storage device of claim 19, wherein particular bits of the configuration data are dedicated to storing information indicating which of a plurality of hardware controllers are installed in the computer system.

24. The storage device of claim 19, wherein particular bits of the configuration data are dedicated to storing information indicating which of a plurality of hardware components are installed in the computer system.

25. A method for use in configuring a computer for operation, the method comprising:

accessing a memory device to retrieve program code that, when executed, forms a basic input/output system (BIOS) for the computer and that includes code sections associated with operation of a plurality of optional components;

at the direction of the BIOS code, accessing a data storage device to obtain configuration data identifying which of the optional components are installed in the computer;

executing those portions of the BIOS code associated with the optional components that are installed in the computer; and

not executing those portions of the BIOS code associated with the optional components that are not installed in the computer.

26. The method of claim 25, comprising reading the configuration data from consecutive individually addressable storage locations in the data storage device.

27. The method of claim 25, comprising reading from the configuration data at least one data bit corresponding to each of the optional components in the group.

28. The method of claim 27, comprising reading the value of the data bit to determine whether the corresponding optional component is installed in the computer.

29. The method of claim 25, further comprising accessing the data storage device to retrieve custom program code that, when executed with the BIOS code, enables operation of at least one of the optional components.