Virtual to Physical Memory Mapping 虚构至物理内存映射
The mapping of virtual memory to physical memory occurs through page tables, which are implemented in the underlying hardware (see Figure 1).
虚拟内存到物理内存的映射通过页表完成，这是在底层软件中实现的(见图1)。
TLB is the cache holding the mapping information from the virtual address to the physical page in memory.
TLB缓存包含从虚拟地址到内存中物理页面的映射信息。
To understand the reverse mapping technique, let's quickly go through some fundamentals of the Linux virtual memory system.
为了理解反向映射技术，让我们来首先简单了解Linux虚拟内存系统的一些基本原理。
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