Increased efficiency obfuscated logical-to-physical map management
AssigneeMicron Technology, Inc.
InventorsNadav Grosz, Jonathan Scott Parry
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Abstract
Devices and techniques for efficient obfuscated logical-to-physical mapping are described herein. For example, activity corresponding to obfuscated regions of an L2P map for a memory device can be tracked. A record of discontinuity between the obfuscated regions and L2P mappings resulting from the activity can be updated. The obfuscated regions can be ordered based on a level of discontinuity from the record of discontinuity. When an idle period is identified, an obfuscated region from the obfuscated regions is selected and refreshed based on the ordering.
Claims24
A memory device that implements obfuscated logical-to-physical (L2P) map management, the memory device comprising:
- processing circuitry;
- and
- storage that includes instructions, the instructions, when executed by the processing circuitry, configured the processing circuitry to:
- track activity in a memory device corresponding to obfuscated regions of an L2P map for the memory device that is stored on the memory device;
- update a record of discontinuity between the obfuscated regions and L2P mappings resulting from the activity;
- identify an idle period;
- order the obfuscated regions based on a level of discontinuity from the record of discontinuity;
- and
- refresh, in response to the idle period, an obfuscated region from the obfuscated regions selected based on the ordering.
A method for obfuscated logical-to-physical (L2P) map management, the method comprising:
- tracking activity in a memory device corresponding to obfuscated regions of an L2P map for the memory device that is stored on the memory device;
- updating a record of discontinuity between the obfuscated regions and L2P mappings resulting from the activity;
- identifying an idle period;
- ordering the obfuscated regions based on a level of discontinuity from the record of discontinuity;
- and
- refreshing, in response to the idle period, an obfuscated region from the obfuscated regions selected based on the ordering.
A machine-readable medium including instructions to implement obfuscated logical-to-physical (L2P) map management, the instructions, when executed by processing circuitry, cause the processing circuitry to perform operations comprising:
- tracking activity in a memory device corresponding to obfuscated regions of an L2P map for the memory device that is stored on the memory device;
- updating a record of discontinuity between the obfuscated regions and L2P mappings resulting from the activity;
- identifying an idle period;
- ordering the obfuscated regions based on a level of discontinuity from the record of discontinuity;
- and
- refreshing, in response to the idle period, an obfuscated region from the obfuscated regions selected based on the ordering.
Dependencies are inferred from the claim text.