Method of restarting a computer platform

• US 7,962,734 B2
• Filed: 03/15/2007
• Issued: 06/14/2011
• Est. Priority Date: 09/20/2006
• Status: Active Grant

• Current Assignee: Valtrus Innovations Limited (f/k/a Dolya Holdco 9 Limited) (Key Patent Innovations Limited)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Hack, Stephen Patrick, Allison, Michael S., Morrison, John A.
• Primary Examiner(s): Lee; Thomas
• Assistant Examiner(s): Choudhury; Zahid
• Application Number:
  US11/686,528
• Publication Number:
  US 20080072028A1
• Time in Patent Office: 1,552 Days
• Field of Search: 713/1, 713/2
• US Class Current: 713/1
• CPC Class Codes: G06F 9/24 Loading of the microprogram
• CPC Class Codes: G06F 9/4418 Suspend and resume; Hibernate and awake

Abstract

Provided is a method for restarting a computing platform to a state in which applications run in less time than an initial start, including powering on a computing platform having a plurality of devices; identifying one or more of the devices which are not critical to running applications; storing information about the non-critical devices; restarting the computing platform; retrieving the information about the non-critical devices; disabling the non-critical devices; performing at least one of testing and initialization of at least one device of the plurality of devices that are critical to running the applications before the restart is completed; offloading at least one of testing and initialization of at least one of the non-critical devices; enabling devices which are not non-critical; and enabling the non-critical devices after the restart is completed.

Claims

1. A method for restarting a computing platform comprising a plurality of devices to a state in which applications run in less time than an initial start, comprising:

powering on the computing platform;

identifying one or more devices of the plurality of devices which are not critical to running applications;

storing information about the non-critical devices;

restarting the computing platform;

retrieving the information about the non-critical devices;

disabling the non-critical devices;

performing at least one of testing and initialization of at least one device of the plurality of devices that are critical to running the applications before the critical devices are enabled;

offloading at least one of testing and initialization of at least one of the non-critical devices;

enabling the critical devices; and

said platform enabling or directing said operating system to enable the non-critical devices after the restart is completed.

2. The method of claim 1, wherein the identifying step occurs after at least one of initial boot-up, a configuration change, and detection of a device error.

3. The method of claim 1, wherein the offloading step comprises performing at least one of testing and initialization of the at least one of the non-critical devices in parallel with performing at least one of testing and initialization of the at least one of the critical devices.

4. The method of claim 3, wherein performing at least one of testing and initialization of the at least one of the non-critical devices is performed by another one of the non-critical devices.

5. The method of claim 1, wherein the offloading step comprises performing at least one of testing and initialization of the at least one of the non-critical devices in response to enabling the at least one of the non-critical devices.

6. The method of claim 5, wherein performing at least one of testing and initialization of the at least one of the non-critical devices is performed by the computing platform.

7. The method of claim 1, wherein the offloading step comprises performing at least one of testing and initialization of the at least one of the non-critical devices after enabling the at least one of the non-critical devices.

8. The method of claim 7, wherein performing at least one of testing and initialization of the at least one of the non-critical devices is performed by an operating system executing on the computing platform.

9. A method for a computing platform to mark devices not critical to running an application, wherein the computing platform has an operating system (OS) that uses the Advanced Configuration and Power Interface (ACPI);

comprising;

providing an ACPI control method for identifying non-critical devices;

powering on the computing platform comprising a plurality of devices;

providing ACPI tables with all devices enabled;

passing control to the OS;

booting the OS with all devices;

invoking the ACPI control method to identify devices which are not critical for running an application as non-critical devices;

storing information about the non-critical devices;

restarting the computing platform;

retrieving the information about the non-critical devices;

providing ACPI tables wherein;

all devices are identified;

non-critical devices are disabled; and

devices which are not non-critical are enabled;

performing at least one of testing and initialization of at least one of the critical devices;

offloading at least one of testing and initialization of at least one of the non-critical devices;

passing control to the OS;

booting the OS with the critical devices;

enabling the non-critical devices in the ACPI tables;

sending an event to the OS to use an on-line add operation to add each non-critical device; and

using said platform performing or directing said operating system to perform an on-line add operation to add each non-critical device after booting the OS with the critical devices has been completed.

10. The method of claim 9, wherein the invoking step occurs after at least one of initial boot-up, a configuration change, a reset to default settings, and detection of a device error.

11. The method of claim 9, wherein the offloading step comprises performing at least one of testing and initialization of the at least one of the non-critical devices in parallel with performing at least one of testing and initialization of the at least one of the critical devices.

12. The method of claim 11, wherein performing at least one of testing and initialization of the at least one of the non-critical devices is performed by another one of the non-critical devices.

13. The method of claim 9, wherein the offloading step comprises performing at least one of testing and initialization of the at least one of the non-critical devices in response to using the on-line add operation to add the at least one of the non-critical devices.

14. The method of claim 13, wherein performing at least one of testing and initialization of the at least one of the non-critical devices is performed by the computing platform.

15. The method of claim 9, wherein the offloading step comprises performing at least one of testing and initialization of the at least one of the non-critical devices after using the on-line add operation to add the at least one of the non-critical devices.

16. The method of claim 15, wherein performing at least one of testing and initialization of the at least one of the non-critical devices is performed by the operating system.

17. A computing platform, comprising:

a plurality of devices, wherein at least one of the devices is critical to running applications on the computing platform, and wherein at least another one of the devices is not critical to running the applications;

wherein the computer platform is configured to identify the at least one non-critical device after being powered on and store information about the at least one non-critical device; and

wherein the computer platform is further configured to retrieve the information about the at least one non-critical device after being restarted, disable the at least one non-critical device, perform at least one of testing and initialization of the at least one critical device before the at least one critical device is enabled, offload at least one of testing and initialization of the at least one non-critical device, enable the at least one critical device, and then enable the at least one non-critical device after the restart is complete.

18. The computing platform of claim 17, wherein the computing platform is configured to identify the at least one non-critical device after at least one of initial boot-up, a configuration change, and detection of a device error.

19. The computing platform of claim 17, wherein the computing platform is further configured to perform at least one of testing and initialization of the at least one non-critical device in parallel with performing at least one of testing and initialization of the at least one critical device.

20. The computing platform of claim 19, wherein another non-critical device of the plurality of devices is configured to perform at least one of testing and initialization of the at least one non-critical device.

21. The computing platform of claim 17, wherein the computing platform is further configured to offload at least one of testing and initialization of the at least one non-critical device by performing at least one of testing and initialization of the at least one non-critical device in response to enabling the at least one non-critical device.

22. The computing platform of claim 17, wherein the computing platform is further configured to offload at least one of testing and initialization of the at least one non-critical device by performing at least one of testing and initialization of the at least one non-critical device after enabling the at least one non-critical device.

23. The computing platform of claim 22, wherein the computing platform further comprises an operating system configured to perform at least one of testing and initialization of the at least one non-critical device.

24. A non-transitory computer-readable medium comprising instructions executable by a computing platform comprising a plurality of devices to perform a method of restarting the computing platform, the method comprising:

after the computing platform is powered on, identifying one or more devices of the plurality of devices which are not critical to running applications on the computing platform;

storing information about the non-critical devices;

after the computing platform is restarted, retrieving the information about the non-critical devices;

disabling the non-critical devices;

performing at least one of testing and initialization of at least one device of the plurality of devices that are critical to running the applications before the critical devices are enabled; and

offloading at least one of testing and initialization of at least one of the non-critical devices;

enabling the critical devices; and

said platform performing ACPI on-line add operations or directing an operating system to perform ACPI on-line add operations so as to enable the non-critical devices after the restart is completed.

25. The computer-readable medium of claim 24, wherein identifying the non-critical devices occurs after at least one of initial boot-up, a configuration change, and detection of a device error.

26. The computer-readable medium of claim 24, wherein offloading at least one of testing and initialization of at least one of the non-critical devices comprises performing at least one of testing and initialization of the at least one of the non-critical devices in parallel with performing at least one of testing and initialization of the at least one of the critical devices.

27. The computer-readable medium of claim 26, wherein performing at least one of testing and initialization of the at least one of the non-critical devices is performed by another one of the non-critical devices.

28. The computer-readable medium of claim 24, wherein offloading at least one of testing and initialization of at least one of the non-critical devices comprises performing at least one of testing and initialization of the at least one of the non-critical devices in response to enabling the at least one of the non-critical devices.

29. The computer-readable medium of claim 24, wherein offloading at least one of testing and initialization of at least one of the non-critical devices comprises performing at least one of testing and initialization of the at least one of the non-critical devices after enabling the at least one of the non-critical devices.

30. The computer-readable medium of claim 29, wherein performing at least one of testing and initialization of the at least one of the non-critical devices is performed by an operating system executing on the computing platform.

31. A method comprising:

a platform building ACPI tables in which at least one critical device is marked “

enabled” and

at least one non-critical device is marked “

disabled”

;

booting an operating system with said critical device enabled and said non-critical device disabled; and

said platform performing one or more ACPI on-line add operations to enable or directing said operating system to perform one or more ACPI on-line add operations to enable said non-critical device.

32. A method as recited in claim 31 wherein said platform performs said one or more on-online operations.

33. A method as recited in claim 31 wherein, after said operating system is booted, said platform:

marks said non-critical device “

enabled”

in said ACPI table, and

directs said operating system to perform said one or more on-online operations.

34. A method as recited in claim 31 wherein initialization of said critical device is performed before said operating system begins booting and initialization of said non-critical device is performed while said operating system is booting.

35. A method as recited in claim 31 wherein initialization of said critical device is performed before said operating system begins booting and initialization of said non-critical device is performed after said operating system is booted.

36. A method as recited in claim 31 further comprising running an application on said operating system before said one or more ACPI on-line add operations are performed.