发明授权
US06286090B1 Mechanism for selectively imposing interference order between page-table fetches and corresponding data fetches 失效
选择性地强制页表提取之间的干扰顺序和相应数据提取的机制

Mechanism for selectively imposing interference order between page-table fetches and corresponding data fetches
摘要:
A technique selectively imposes inter-reference ordering between memory reference operations issued by a processor of a multiprocessor system to addresses within a page pertaining to a page table entry (PTE) that is affected by a translation buffer (TB) miss flow routine. The TB miss flow is used to retrieve information contained in the PTE for mapping a virtual address to a physical address and, subsequently, to allow retrieval of data at the mapped physical address. The PTE that is retrieved in response to a memory reference (read) operation is not loaded into the TB until a commit-signal associated with that read operation is returned to the processor. Once the PTE and associated commit-signal are returned, the processor loads the PTE into the TB so that it can be used for a subsequent read operation directed to the data at the physical address.
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