Method and apparatus for delivering device drivers

• US 7,444,503 B2
• Filed: 01/11/2006
• Issued: 10/28/2008
• Est. Priority Date: 01/11/2006
• Status: Active Grant

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Redman, David J., Saulsbury, Ashley N., Johnson, John G., Onufer, Gregory C.
• Primary Examiner(s): Patel; Nitin C
• Application Number:
  US11/329,656
• Publication Number:
  US 20070162625A1
• Time in Patent Office: 1,021 Days
• Field of Search: 713/1, 713/2, 713/100, 710/8, 710/10
• US Class Current: 713/1
• CPC Class Codes: G06F 9/4411 Configuring for operating with peripheral devices; Loading of device drivers

Abstract

A method and apparatus for delivering a device driver to an operating system without user intervention. One or more operating systems (e.g., different operating system programs, different versions of one operating system) execute on a computer platform. During booting of an operating system a device is identified for which a driver is needed. The driver is requested from a service processor of the platform, which includes memory or storage for storing multiple device drivers (or multiple versions of one driver, for different operating systems). The driver is retrieved from the service processor'"'"'s storage and delivered to the operating system.

Claims

1. A method of delivering a device driver to an operating system executing on a computer platform, the method comprising:

during booting of the operating system, identifying a first device for which a device driver is needed;

submitting a request for a device driver from the operating system to a service processor installed on the computer platform, wherein the service processor comprises a storage configured to store one or more device drivers; and

if the device driver is available on the service processor,

delivering the device driver to the operating system without intervention by a user,

otherwise, if the device driver is not available on the service processor,

notifying the operating system.

2. The method of claim 1, wherein the computer platform is configured to simultaneously execute multiple operating systems in one or more virtual environments.

3. The method of claim 2, wherein said requesting comprises:

requesting the device driver from a hypervisor configured to manage access by the multiple operating systems to devices of the computer platform.

4. The method of claim 3, wherein said requesting further comprises:

forwarding the request from the hypervisor to the service processor.

5. The method of claim 1, wherein said requesting comprises:

identifying to the service processor the first device and a version of the operating system.

6. The method of claim 1, wherein said storage comprises solid-state memory having a capacity of at least 32 megabytes.

7. The method of claim 1, wherein said delivering comprises:

loading the device driver.

8. A computer readable storage medium storing instructions that, when executed by a computer, cause the computer to perform a method of delivering a device driver to an operating system executing on a computer platform, without user intervention, the method comprising:

during booting of the operating system, identifying a first device for which a device driver is needed;

submitting a request for a device driver from the operating system to a service processor installed on the computer platform, wherein the service processor comprises a storage configured to store one or more device drivers; and

if the device driver is available on the service processor,

delivering the device driver to the operating system without intervention by a user,

otherwise, if the device driver is not available on the service processor,

notifying the operating system.

9. A service processor for a computer platform, wherein the service processor is configured to monitor operation of one or more components of the computer platform, the service processor comprising:

a memory configured to store multiple device drivers for driving operation of one or more devices of the computer platform;

wherein the multiple device drivers include multiple versions of a first device driver, each said version being configured for a different operating system;

wherein the service processor is configured to receive a request for a device driver from an operating system; and

if the device driver is available on the service processor, the service processor is configured to deliver the device driver to the operating system,

otherwise, if the device driver is not available on the service processor, the service processor is configured to notify the operating system.

10. The service processor of claim 9, further comprising:

a connection to a hypervisor configured to manage access to the one or more devices by multiple operating systems executing simultaneously on the computer platform.

11. The service processor of claim 9, wherein the service processor is separate from a central processing unit of the computing platform.

12. The service processor of claim 9, wherein the one or more components include a power supply and a fan.

13. The service processor of claim 9, wherein the one or more devices include one or more of:

a communication interface;

an input device;

an output device; and

a storage device.

14. A computer platform comprising:

a first operating system configured to support one or more application programs;

a service processor configured to monitor operation of one or more components of the platform, the service processor comprising a storage configured to store one or more device drivers for driving operation of a first device installed in the computer platform;

wherein the operating system is configured to request a device driver from the service processor; and

wherein the service processor is configured to deliver a device driver to the operating system if the device driver is available on the service processor, otherwise the service processor is configured to notify the operating system if the device driver is not available on the service processor.

15. The computer platform of claim 14, wherein the computer platform is configured to simultaneously run multiple operating systems, including the first operating system, in one or more virtual environments.

16. The computer platform of claim 15, further comprising:

a hypervisor configured to manage access to the first device by the multiple operating systems.

17. The computer platform of claim 14, wherein the one or more device drivers comprise multiple drivers for the first device, each of the multiple drivers being configured for a different operating system.

18. The computer platform of claim 14, further comprising:

a central processing unit separate from said service processor.

19. The computer platform of claim 14, wherein the one or more components include at least one of:

a power supply;

or

a fan.

20. The computer platform of claim 14, wherein the first device is one of:

a communication interface;

a storage device;

an input device; and

an output device.