TLB Flush Logic
ConceptTLB Flush Logic is identified in the evidence as a RISC-V MMU verification concern where directed ImperasTS-MMU testing exposed a subtle ordering issue after coverage analysis found weak points in Sv39 and Sv48 page-table-walk scenarios.
First seen 5/25/2026
Last seen 5/26/2026
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Overview
TLB Flush Logic is referenced as a verification-relevant area in RISC-V virtual-memory testing. In the provided evidence, it appears in the context of coverage closure for MMU behavior, specifically after coverage analysis found weak points in Sv39 and Sv48 page table walks. Adding ImperasTS-MMU directed tests then exposed a subtle ordering issue in TLB flush logic. [C1]
Verification context
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2 connectionsAdding TS-MMU tests exposed a subtle ordering issue in TLB flush logic.
TLB flush logic is a component of the MMU responsible for invalidating TLB entries.
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[1] Coverage analysis found weak points in Sv39 and Sv48 page table walks, and adding TS-MMU tests exposed a subtle ordering issue in TLB flush logic. source
[2] ImperasTS-MMU is part of the ImperasTS family and is described as a directed suite for virtual memory and protection features, alongside PMP and ePMP. source