Apparatus and method to execute prerequisite code before delivering UEFI firmware capsule

1. A method comprising:

creating, by system firmware at an information handling system, an Advanced Configuration and Power Interface (ACPI) ID corresponding to a virtual ACPI bus device;

providing a bus device driver corresponding to the virtual ACPI bus device;

registering, by the bus device driver, a management service event, the management service event, when executed, to determine whether a target device is in a condition to receive revised firmware;

creating, by the bus device driver, a virtual child device corresponding to the virtual ACPI bus device;

providing a function driver corresponding to the virtual child device;

receiving an updated version of the function driver from an update server, the updated version of the function driver including a firmware capsule containing the revised firmware for the target device; and

registering, by the function driver, a second management service event, the second management service event, when executed, to determine whether the target device is in a condition to receive the revised firmware.

2. The method of claim 1 , further comprising:

storing the revised firmware for the target device at a storage device;

initiating a reboot of the information handling system; and

storing the revised firmware at a firmware memory associated with the target device.

3. The method of claim 1 , wherein the target device is a Trusted Platform Module (TPM).

4. The method of claim 3 , wherein determining whether the state of the target device is in a condition to receive revised firmware comprises determining that the TPM is not owned by an application executing at the information handling system.

5. The method of claim 1 , wherein the target device is a basic input/output system (BIOS) at the information handling system, and the revised firmware is BIOS firmware.

6. The method of claim 1 , wherein the target device is a docking station, and determining whether the target device is in a condition to receive revised firmware comprises determining that the docking station is functionally coupled to the information handling system.

7. The method of claim 1 , wherein the management service event is configured to determine whether the state of the target device is in a condition to receive the revised firmware independent of a status at an Extensible Firmware Interface system resource table.

8. The method of claim 1 , wherein in response to determining that a second target device is in a condition to receive revised firmware, the method further comprises:

creating, by the bus device driver, a second virtual child device;

providing a second function driver corresponding to the second virtual child device of the virtual ACPI bus device; and

receiving an updated version of the second function driver from a Windows Update server, the updated version of the second function driver including a firmware capsule containing revised firmware for the second target device.

9. An information handling system comprising:

a processor;

a target device and corresponding firmware; and

a memory device to store system firmware, the system firmware executable by the processor to:

create an Advanced Configuration and Power Interface (ACPI) ID corresponding to a virtual ACPI bus device;

provide a bus device driver corresponding to the virtual ACPI bus device; and

cause the bus device driver to register a management service event, the management service event, when executed, to determine whether the target device is in a condition to receive revised firmware,

wherein in response to determining that the target device is in a condition to receive revised firmware, the system firmware is further to:

create, by the bus device driver, a virtual child device corresponding to the virtual ACPI bus device;

provide a function driver corresponding to the virtual child device, the function driver to register a second management service event, the second management service event, when executed, to determine whether the target device is in a condition to receive the revised firmware; and

receive an updated version of the function driver from an update server, the updated version of the function driver including a firmware capsule containing the revised firmware for the target device.

10. The information handling system of claim 9 , wherein the system firmware is further to:

store the revised firmware for the target device at a storage device;

initiate a reboot of the information handling system; and

store the revised firmware at a firmware memory associated with the target device.

11. The information handling system of claim 9 , wherein the target device is a basic input/output system (BIOS) at the information handling system, and the revised firmware is BIOS firmware.

12. The information handling system of claim 9 , wherein the management service event is configured to determine whether the target device is in a condition to receive the revised firmware independent of a status at an Extensible Firmware Interface system resource table.

13. The information handling system of claim 9 , wherein in response to determining that a second target device is in a condition to receive revised firmware, the system firmware is further to:

create, by the bus device driver, a second virtual child device corresponding to the virtual ACPI bus device;

provide a second function driver corresponding to the second virtual child device; and

receive an updated version of the second function driver from a Windows Update server, the updated version of the second function driver including a firmware capsule containing revised firmware for the second target device.

14. A method comprising:

creating, by system firmware at an information handling system, an Advanced Configuration and Power Interface (ACPI) ID corresponding to a virtual ACPI bus device;

providing a bus device driver corresponding to the virtual ACPI bus device, the bus device driver to determine whether a target device is in a condition to receive revised firmware;

in response to determining, by the bus device driver, that the target device is in a condition to receive the revised firmware, creating a virtual child device corresponding to the virtual ACPI bus device;

providing a function driver corresponding to the virtual child device; and

receiving an updated version of the function driver from a Windows Update server, the updated version of the function driver including a firmware capsule containing the revised firmware for the target device,

wherein the bus device driver is to determine whether the target device is in a condition to receive the revised firmware by registering a management service event, the management service event, when executed, to determine whether the target device is in a condition to receive the revised firmware.

15. The method of claim 14 , wherein in response to determining that a second target device is in a condition to receive revised firmware, the method further comprises:

creating, by the bus device driver, a second virtual child device;

providing a second function driver corresponding to the second virtual child device; and

receiving an updated version of the second function driver from a Windows Update server, the updated version of the second function driver including a firmware capsule containing revised firmware for the second target device.