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https://heeler-deer.top/posts/44602/
本实验主要是对页替换算法的实现 woc,有人写了ucore step-by-step,太强了。 知识点 当程序访问内存时,会出现三种情况: 写入一个存在物理页的虚拟页 读一个不存在的页 不满足访问权限 这时就需要缺页处理程序来处理,cpu会把产生异常的线性地址存储到lab2里提到过的cr2寄存器中,并且把页访问异常的错误码存放在中断栈中。 这里只讨论物理页面不够用的时候,应该置换那个物理页面。
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https://heeler-deer.top/posts/44602/
本实验主要是对页替换算法的实现 woc,有人写了ucore step-by-step,太强了。 知识点 当程序访问内存时,会出现三种情况: 写入一个存在物理页的虚拟页 读一个不存在的页 不满足访问权限 这时就需要缺页处理程序来处理,cpu会把产生异常的线性地址存储到lab2里提到过的cr2寄存器中,并且把页访问异常的错误码存放在中断栈中。 这里只讨论物理页面不够用的时候,应该置换那个物理页面。
The text was updated successfully, but these errors were encountered: