Deferred Microcode Version Commit for Conditional Rollback

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing microcode update technologies require redundant version commits and rollbacks, increasing the burden on design and validation teams, and lack flexibility in managing microcode updates during system operation.

Innovation Solution

Implementing a deferred version commit functionality that separates the loading of microcode updates from the committing of version identifiers, allowing for conditional commitment based on evaluation and testing after loading, thereby reducing the need for redundant version commits and enabling flexible microcode management without system shutdowns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If microcode updates are loaded and version identifiers are committed immediately, then microcode updates can be applied quickly, but redundant version commits and rollbacks are required increasing the burden on design and validation teams

Engineering Contradiction:

Improvemicrocode update application speedVSAvoidversion commit and rollback complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent segments the microcode update process into two independent phases: loading the microcode update and committing the version identifier. The loading phase can occur immediately without commitment, allowing quick application. The commitment phase is separated and can be performed conditionally later, eliminating the need for immediate redundant commits and simplifying the overall process complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent allows preliminary loading of microcode updates without immediate commitment of version identifiers. This preliminary action enables the system to prepare and load microcode in advance, then commit version identifiers later when appropriate, reducing redundant operations and burden on validation teams.

Inventive Principle:

Principle #10Preliminary action

2Ease of manufacture

If version identifiers are committed immediately upon loading, then the commit process is simple, but flexibility in managing microcode updates during system operation is reduced

Engineering Contradiction:

Improvecommit process simplicityVSAvoidmicrocode update management flexibility

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic control over version identifier commitment, allowing the system to adapt between immediate commitment and deferred commitment based on operational needs. This dynamic approach maintains simplicity when immediate commitment is needed while providing flexibility when conditional commitment is required, enabling adaptable microcode management during system operation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of commitment timing from fixed (immediate) to variable (deferred/conditional). This parameter change allows the system to adjust the commitment behavior based on different operational scenarios, maintaining ease of use while enhancing flexibility in microcode update management.

Inventive Principle:

Principle #35Parameter changes

3Duration of action of moving object

If microcode updates are applied during system operation, then system downtime is reduced, but the need for evaluation and testing before commitment increases complexity

Engineering Contradiction:

Improvesystem operational durationVSAvoidevaluation and testing process complexity

Core Design Contradiction:

Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The patent segments the microcode update process into loading (which can occur during operation) and commitment (which can be deferred for evaluation). This segmentation allows the system to load microcode updates during operational periods to minimize downtime, while separating the evaluation and testing phase from the commitment phase, making the complexity manageable through structured process separation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent enables preliminary loading of microcode updates during system operation without immediate commitment. This allows evaluation and testing to be performed as preliminary actions before commitment, enabling updates to be applied during operation while managing complexity through staged implementation.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250298603A1Device, system and method to defer a commit of a microcode version identifier

Publication Date: 2025.09.25 INTEL CORP

AI summary

Techniques and mechanisms for deferring a commit of a version identifier to facilitate a rollback of a microcode update. In an embodiment, a first microcode update corresponds to a first version identifier. A processor provides functionality to perform a load of the first microcode update, wherein said load does not comprise, or otherwise per se require, a committing of the first version identifier at the processor. Any such committing is performed, conditionally, based on one or more subsequent operations which include, or are concurrent with, testing of the first microcode update to determine whether the commit, or a rollback, is to be performed. In another embodiment, the processor supports visibility or other access, by a software process, to one or more parameters associated with a deferred version commit functionality.