The code sets up the kernel page directory, creates identity kernel mapping, identifies architecture and processor, and branches to start_kernel (the main routine whereby the system is initialized).
这个代码设置内核页面目录、创建身份内核映射、标识体系结构和处理器以及执行分支start_kernel(初始化系统的主例程)。
The first translation table is called the Page Directory, and the second is called the Page table.
第一步转换的表称为页目录，第二步的表称为页表。
The first translation table is called the Page Directory, and the second is called the Page table.
第一步转换的表称为页目录，第二步的表称为页表。
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