Process dedicated in-memory translation lookaside buffers (TLBs) (mTLBs) for augmenting memory management unit (MMU) TLB for translating virtual addresses (VAs) to physical addresses (PAs) in a processor-based system

Process dedicated in-memory translation lookaside buffers (TLBs) (mTLBs) for augmenting a memory management unit (MMU) TLB for translating virtual addresses (VAs) to physical addresses (PA) in a processor-based system is disclosed. In disclosed examples, a dedicated in-memory TLB is supported in sys...

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Hauptverfasser: Venkataraman, Madhavan Thirukkurungudi, Speier, Thomas Philip
Format: Patent
Sprache:eng
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Zusammenfassung:Process dedicated in-memory translation lookaside buffers (TLBs) (mTLBs) for augmenting a memory management unit (MMU) TLB for translating virtual addresses (VAs) to physical addresses (PA) in a processor-based system is disclosed. In disclosed examples, a dedicated in-memory TLB is supported in system memory for each process so that one process's cached page table entries do not displace another process's cached page table entries. When a process is scheduled to execute in a central processing unit (CPU), the in-memory TLB address stored for such process can be used by page table walker circuit in the CPU MMU to access the dedicated in-memory TLB for executing the process to perform VA to PA translations in the event of a TLB miss to the MMU TLB. If a TLB miss occurs to the in-memory TLB, the page table walker circuit can walk the page table in the MMU.