Invention Grant
- Patent Title: Generation of mask-value pairs for managing access to memory segments
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Application No.: US14946607Application Date: 2015-11-19
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Publication No.: US10043027B1Publication Date: 2018-08-07
- Inventor: Gangadhar Budde , Pradeep Kumar Mishra , Somdutt Javre
- Applicant: Xilinx, Inc.
- Applicant Address: US CA San Jose
- Assignee: XILINX, INC.
- Current Assignee: XILINX, INC.
- Current Assignee Address: US CA San Jose
- Agent LeRoy D. Maunu
- Main IPC: G06F17/50
- IPC: G06F17/50 ; G06F21/62 ; G06F3/06

Abstract:
Methods and systems are disclosed for determining mask-value pairs for controlling access to a memory segment for a plurality of IDs. A first set of mask-value pairs is determined for a set of allowed identifiers (IDs) and a set of non-allowed IDs. Each mask-value pair of the first set matches at least one ID of the set of allowed IDs and does not match any of the IDs of the set of non-allowed IDs. Redundant mask-value pairs are removed from the first set to produce a second set. Subsets of mask-value pairs in the second set that match the entire set of allowed IDs are determined. The subset having the highest processing efficiency is determined and selected. A set of configuration data is generated that is configured to cause a memory management circuit to enforce access to the memory segment based on the selected subset of mask-value pairs.
Information query