Invention Application
US20140281296A1 FAULT BUFFER FOR TRACKING PAGE FAULTS IN UNIFIED VIRTUAL MEMORY SYSTEM 审中-公开
用于跟踪统一的虚拟内存系统中的页面故障的故障缓冲区

FAULT BUFFER FOR TRACKING PAGE FAULTS IN UNIFIED VIRTUAL MEMORY SYSTEM
Abstract:
A system for managing virtual memory. The system includes a first processing unit configured to execute a first operation that references a first virtual memory address. The system also includes a first memory management unit (MMU) associated with the first processing unit and configured to generate a first page fault upon determining that a first page table that is stored in a first memory unit associated with the first processing unit does not include a mapping corresponding to the first virtual memory address. The system further includes a first copy engine associated with the first processing unit. The first copy engine is configured to read a first command queue to determine a first mapping that corresponds to the first virtual memory address and is included in a first page state directory. The first copy engine is also configured to update the first page table to include the first mapping.
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