Distributed BIOS PLL Tuning Across Processor Environments
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Solution Overview
Problem
Existing BIOS firmware components in information handling systems are often added, deleted, updated, or replaced, leading to challenges in timing configuration management, particularly with phase-locked loop (PLL) circuits, which can disrupt system operations if not properly tuned, causing performance issues and inconsistent response times across processor environments.
Innovation Solution
A distributed BIOS system with a BIOS component and variable is used to identify the processor environment and tune the clock during the pre-boot phase, employing a firmware tuned PLL configuration protocol to synchronize clock signals across different processor environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If BIOS firmware components are added, deleted, updated, or replaced, then system functionality is improved, but timing configuration consistency deteriorates
Solution Approach 1:
The patent applies preliminary action by detecting processor environment changes during the pre-boot phase before the operating system loads, and proactively tuning clock parameters in advance. This ensures timing configuration is ready before system operations begin, maintaining consistency despite BIOS updates.
Solution Approach 2:
The patent implements feedback by continuously monitoring processor environment identifiers and comparing them against stored profiles, then automatically adjusting clock parameters based on the detected environment. This closed-loop approach maintains timing consistency across different BIOS configurations.
2Productivity
If clock parameters are tuned for different processor environments, then system performance is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by detecting the specific processor environment and applying targeted clock parameter tuning only for that particular configuration. Instead of using aggressive timing settings for all environments, the system selects appropriate parameters matched to the detected processor type, achieving optimal performance for each environment while avoiding unnecessary power consumption.
Solution Approach 2:
The patent implements dynamics by making clock parameter selection adaptive rather than static. The system dynamically adjusts timing parameters based on the detected processor environment, transitioning between different performance states. This allows the system to achieve high performance when needed while conserving power in other states.
3Reliability
If PLL tuning is performed during boot, then clock synchronization is improved, but boot time increases
Solution Approach 1:
The patent applies preliminary action by detecting the processor environment and preparing appropriate clock parameter profiles during the pre-boot phase, before extensive PLL tuning is required. By having parameters pre-prepared based on early environment detection, the system reduces the time needed for clock synchronization during the rest of the boot process.
Solution Approach 2:
The patent implements skipping by rapidly detecting the processor environment identifier early in the boot sequence and skipping to the appropriate pre-configured parameter set. Instead of performing exhaustive clock tuning searches, the system quickly identifies the processor type and jumps directly to the matched configuration, significantly reducing boot time while maintaining synchronization reliability.
Data Source
AI summary
A firmware management operation. The firmware management operation includes providing an information handling system with a distributed BIOS, the distributed BIOS including a BIOS component and a BIOS variable; identifying a processor environment installed on an information handling system from a plurality of processor environments; and, tuning a clock within the information handling system based upon the processor environment installed on the information handling system, the tuning being performed during a pre-boot phase of the distributed BIOS.