All UNIX operating systems support a system of virtual memory (VM).

所有unix操作系统都支持某种虚拟内存(VM)系统。

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Such as when the VM executes code in kernel mode; then VMWare has to carefully translate the memory mapping and permissions in order to simulate the VM's virtual CPU correctly.

比如，当VM以内核模式执行代码时；为了正确地仿真VM的虚拟cpu, VMWare必须谨慎地转换内存映射和权限。

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Tmpfs also makes use of the disk swap space for storage, and of the virtual memory (VM) subsystem when requesting pages for storing files.

tmpfs还使用磁盘交换空间来存储，并且当为存储文件而请求页面时，使用虚拟内存(VM)子系统。

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