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Protection Ring (security levels on CPUs)

IT·技术 · 2026-11-05 11:43

介绍计算机体系结构中的保护环概念,解释操作系统如何通过硬件强制的层级权限(如Ring 0至Ring 3)来隔离故障并防止恶意软件破坏系统。

Source: en.wikipedia.org


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