REALM MANAGEMENT UNIT-PRIVATE MEMORY REGIONS

REALM MANAGEMENT UNIT-PRIVATE MEMORY REGIONS

Memory access circuitry (26) enforces ownership rights for memory regions. A given memory region is associated with an owner realm specified from multiple realms, each realm corresponding to a portion of at least one software process executed by processing circuitry (8). A realm management unit (RMU...

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Bibliographische Detailangaben
Hauptverfasser: STOCKWELL, Gareth Rhys, KOVACEVIC, Djordje, EVANS, Matthew Lucien, PARKER, Jason
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Zusammenfassung:Memory access circuitry (26) enforces ownership rights for memory regions. A given memory region is associated with an owner realm specified from multiple realms, each realm corresponding to a portion of at least one software process executed by processing circuitry (8). A realm management unit (RMU) (20) is provided to perform realm management operations for managing the realms. The memory access circuitry (26) controls access to a given memory region in dependence on at least one status attribute specifying whether the given memory region is an RMU-private memory region reserved for exclusive access by the RMU (20).