The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.
Brand voice customization。业内人士推荐WPS下载最新地址作为进阶阅读
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The modern, professional answer to this problem is the Trusted Execution Environment, or TEE.
술의 위기, 범인은 넷플릭스와 위고비? [딥다이브]