Adding a runtime service for firmware-based images for a device not known to an operating system

US8930684B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8930684-B2
Application numberUS-25984305-A
CountryUS
Kind codeB2
Filing dateOct 26, 2005
Priority dateOct 26, 2005
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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Abstract

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Systems, devices, and methods, including program instructions, are provided for firmware filters and patches. One method embodiment includes executing extended firmware interface (EFI) program instructions during runtime to modify a firmware implementation underlying an interface and invoking the modified firmware implementation, while the original firmware code in non-volatile memory remains unmodified. A further embodiment includes adding a runtime service in an system abstraction layer (SAL) interface and adding a subordinate runtime service that describes a device not known to a firmware image on a system but useable by a particular operating system (OS).

First claim

Opening claim text (preview).

What is claimed: 1. A method comprising during booting, creating a volatile firmware-based image in memory based on original firmware code in non-volatile memory; during runtime, modifying said firmware-based image so as to alter its appearance to an operating system without modifying said original firmware code in non-volatile memory; and having an operating system interact with the modified firmware-based image in memory while said original firmware code in non-volatile memo…

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What does patent US8930684B2 cover?
Systems, devices, and methods, including program instructions, are provided for firmware filters and patches. One method embodiment includes executing extended firmware interface (EFI) program instructions during runtime to modify a firmware implementation underlying an interface and invoking the modified firmware implementation, while the original firmware code in non-volatile memory remains u…
Who is the assignee on this patent?
Rostampour Arad, Hewlett Packard Development Co
What technology area does this patent fall under?
Primary CPC classification G06F8/60. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).