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Memory region locking using lock/unlock flag state for exclusive rights to control memory access
Memory region locking using lock/unlock flag state for exclusive rights to control memory access
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机译:存储区域使用锁定/解锁标志状态锁定用于控制内存访问的独占权限
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摘要
Apparatus for processing data uses memory access circuitry to enforce ownership rights of a plurality of memory regions within a memory, a given memory region among the plurality of memory regions having a given owning process specified from among a plurality of processes. A given owning process has exclusive rights to control access to given owned data stored within the given memory region. The memory access circuitry is responsive to a first access command from a first processing element for the given memory region to perform an access sequence comprising switching a lock flag for the given memory region to a locked state, performing an access operation specified by the access command, and switching the lock flag to an unlocked state. The memory access circuitry is responsive to a second access command from a second processing element for the given memory region while the lock flag is in said locked state to block action of the second access command.
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