第一件事“虚拟内存”不在于它抽象机器的物理地址空间。
The first thing that "Virtual Memory" does is that it abstracts the physical address space of the machine.
分配不同的物理地址空间给每个进程，确保了有效的保护以避免地址错误。
Assign a different physical address space to each process, ensuring an efficient protection against addressing errors.
更具体来说，本发明涉及将包括系统存储器以及图形本地存储器中的地址位置的物理地址空间用于图形处理器。
More specifically, the invention relates to utilizing a physical address space for a graphics processor that includes address locations in both system memory and graphics local memory.
Windows通过将来自不同地址空间的多个虚拟页映射到同一个物理地址来实现这种机制。
Windows does this by mapping multiple virtual pages from different address Spaces to the same physical location.
在初始化的时候，一个最大的地址空间被保留，但是仅在需要的时候才会分配物理地址。
At initialization, a maximum address space is virtually reserved but not allocated to physical memory unless it is needed.
MSI的内存位置的物理地址，所以它必须转换为对设备和主机的虚拟地址空间。
The MSI memory location is a physical bus address, so it must be translated to virtual address space both on device and host.
MSI的内存位置的物理地址，所以它必须转换为对设备和主机的虚拟地址空间。
The MSI memory location is a physical bus address, so it must be translated to virtual address space both on device and host.
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