支持syscall指令 #417
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支持syscall指令 #417
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* 添加rust重构版本的HPET驱动和tsc驱动,并使用HPET校准tsc频率和cpu总线频率 * 把hpet.c移动到arch文件夹下
* 测试RESET * 测试RESET * 基于轮询的实现 * 规范化部分unsafe的使用 * 完成中断处理函数，同时去除了不必要的内存拷贝行为，准备编写napi机制 * 实现现有协议栈下的部分napi机制；修复了内存泄漏的问题；添加了一部分代码注释 * 去除部分无用代码 * 去除一些无用代码 * 适配新的驱动模型 * 完成msi中断测试 * 去除一些无用代码 * 格式化代码 * 增加了一些注释，提高代码可读性 * 去除无关文件 * 优化了读取mac地址的方式，提高可读性
fslongjin
requested changes
Nov 3, 2023
| ); | ||
| } | ||
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| pub fn init_syscall_stack(&mut self, stack: VirtAddr) { |
| /// user data segment selector | ||
| pub const USER_DS: SegmentSelector = SegmentSelector::new(6, Ring::Ring3); | ||
| pub const USER_DS: SegmentSelector = SegmentSelector::new(5, Ring::Ring3); |
kernel/src/exception/entry.S
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| movq %gs:0x0, %rsp | ||
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| pushq $43 //USER_DS | ||
| pushq %gs:0x8 //rsp |
| pushq %rax //ds | ||
| xorq %rax, %rax | ||
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| pushq %rbp |
kernel/src/smp/smp.c
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| @@ -186,6 +195,23 @@ static void __smp__flush_tlb_ipi_handler(uint64_t irq_num, uint64_t param, struc | |||
| flush_tlb(); | |||
| } | |||
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| void smp_syscall_init() | |||
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这个函数最好是调用rust里面的代码，暴露一个接口出来，不然的话代码就冗余了
kernel/src/exception/trap.h
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| void sys_vector_init(); | ||
| void syscall_64(); // syscall指令入口 |
kernel/src/exception/entry.S
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| cli | ||
| // 将原本要返回的栈帧的栈指针传入do_signal的第一个参数 | ||
| // movq %rsp, %rdi | ||
| // callq do_signal |
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加点函数注释即可merge了 |
fslongjin
approved these changes
Nov 4, 2023
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