手写x64多核

shell功能展示

• clear: clear the screen. example: clear
• tasks : view all tasks. example: tasks
• task count : create tasks. example: task 2
• cpus: view all CPU info. example: cpus
• run: all cpus grab the task. example: run
• cpu index: specify a CPU. example: cpu 1
• r [gdtr|idtr]: read gdtr | idtr register. example: r gdtr
• gdt: view all segments of the CPU. example: gdt
• idt: view all interrupt handling table. example: idt
• mm: view memory info. example: mm
• mmu addr: simulate the working principle of MMU. example: mmu 0

整体架构图

x64内存结构

分页机制

段式内存管理

页式内存管理

逻辑地址、线性地址、物理地址之间的转换关系

物理内存管理

10-10-12分页

2-9-9-12分页

4-level-paging

CPU响应中断的流程