Memory Validation Agent for Faster Boot Transitions
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Solution Overview
Problem
The challenge is to accelerate boot-up and power transition in computer systems by addressing the issue of volatile memory degradation during power state transitions, which leads to slower operations and delays due to potentially invalid memory states.
Innovation Solution
A memory validation agent is introduced to write known-valid information over potentially degraded data in memory, ensuring data integrity and enabling faster boot-up and power transitions by decoupling memory validation operations from processor operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If memory validation operations are performed after power state transition to ensure data integrity, then memory reliability is improved, but boot-up time and power transition time increase
Solution Approach 1:
The patent performs memory validation operations during the power state transition process itself, rather than after the transition completes. The memory controller validates memory integrity as part of the wake-up sequence, writing test patterns to memory locations before the system fully operationalizes, thereby ensuring reliability without adding post-transition overhead.
Solution Approach 2:
The patent maintains continuous memory validation operations during the power transition process. Instead of stopping validation during transition and resuming later, the system continuously performs validation checks throughout the transition period, ensuring that memory integrity is maintained without interrupting the overall boot-up flow.
2Reliability
If memory validation operations are performed after power state transition to ensure data integrity, then memory reliability is improved, but processor productivity decreases
Solution Approach 1:
The patent separates memory validation operations from processor operations by implementing the validation logic in the memory controller independent of the processor. The memory controller autonomously performs validation checks, test pattern generation, and result analysis without requiring processor intervention, allowing the processor to focus on productive work while memory integrity is simultaneously ensured.
Solution Approach 2:
The memory controller acts as an intermediary between the processor and memory system. It handles all validation operations as a mediator, preventing the processor from being directly involved in time-consuming validation tasks. The memory controller generates test patterns, performs validation checks, and reports results to the processor only when necessary, thereby protecting processor productivity.
3Adaptability or versatility
If smaller platform size is implemented to meet handheld device demands, then device adaptability is improved, but power efficiency and transition speed become more difficult to maintain
Solution Approach 1:
The patent changes the operational parameters of the memory system during power transitions. It dynamically adjusts validation intensity, test pattern complexity, and validation scope based on the specific power transition context and platform requirements. This allows smaller platforms to perform optimized validation that consumes less power while still ensuring adequate memory integrity.
Data Source
AI summary
Techniques and mechanisms for assuring that one or more addressable locations in memory of a computer platform are transitioned from potentially invalid state to known-valid state. In an embodiment, a memory validation agent separate from a processor of the computer platform performs memory validation writes in response to an indication of power state transition. In another embodiment, the memory validation agent determines information to be included in write commands which implement the memory validation, where the determining the information is decoupled from operation of the processor.