mirror of
https://github.com/DragonOS-Community/DragonOS.git
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240 lines
6.5 KiB
C
240 lines
6.5 KiB
C
//
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// Created by longjin on 2022/1/20.
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//
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#include "common/glib.h"
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#include "common/printk.h"
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#include "common/kprint.h"
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#include "exception/gate.h"
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#include "exception/trap.h"
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#include "exception/irq.h"
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#include <exception/softirq.h>
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#include "mm/mm.h"
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#include "mm/slab.h"
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#include "process/process.h"
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#include "syscall/syscall.h"
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#include "smp/smp.h"
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#include <smp/ipi.h>
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#include <sched/sched.h>
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#include "driver/multiboot2/multiboot2.h"
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#include "driver/acpi/acpi.h"
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#include "driver/keyboard/ps2_keyboard.h"
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#include "driver/mouse/ps2_mouse.h"
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#include "driver/disk/ata.h"
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#include "driver/pci/pci.h"
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#include "driver/disk/ahci/ahci.h"
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#include <driver/timers/rtc/rtc.h>
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#include <driver/timers/HPET/HPET.h>
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#include <driver/timers/timer.h>
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#include <driver/uart/uart.h>
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unsigned int *FR_address = (unsigned int *)0xb8000; //帧缓存区的地址
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ul bsp_idt_size, bsp_gdt_size;
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struct memory_desc memory_management_struct = {{0}, 0};
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// struct Global_Memory_Descriptor memory_management_struct = {{0}, 0};
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void test_slab();
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void show_welcome()
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{
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/**
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* @brief 打印欢迎页面
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*
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*/
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printk("\n\n");
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for (int i = 0; i < 74; ++i)
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printk(" ");
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printk_color(0x00e0ebeb, 0x00e0ebeb, " \n");
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for (int i = 0; i < 74; ++i)
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printk(" ");
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printk_color(BLACK, 0x00e0ebeb, " Welcome to DragonOS ! \n");
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for (int i = 0; i < 74; ++i)
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printk(" ");
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printk_color(0x00e0ebeb, 0x00e0ebeb, " \n\n");
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}
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struct gdtr gdtp;
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struct idtr idtp;
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void reload_gdt()
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{
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gdtp.size = bsp_gdt_size - 1;
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gdtp.gdt_vaddr = (ul)phys_2_virt((ul)&GDT_Table);
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asm volatile("lgdt (%0) \n\t" ::"r"(&gdtp)
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: "memory");
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}
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void reload_idt()
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{
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idtp.size = bsp_idt_size - 1;
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idtp.idt_vaddr = (ul)phys_2_virt((ul)&IDT_Table);
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// kdebug("gdtvaddr=%#018lx", p.gdt_vaddr);
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// kdebug("gdt size=%d", p.size);
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asm volatile("lidt (%0) \n\t" ::"r"(&idtp)
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: "memory");
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}
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// 初始化系统各模块
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void system_initialize()
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{
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// 初始化printk
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printk_init(8, 16);
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#ifdef DEBUG
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uart_init(COM1, 115200);
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#endif
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kinfo("Kernel Starting...");
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// 重新加载gdt和idt
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ul tss_item_addr = (ul)phys_2_virt(0x7c00);
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_stack_start = head_stack_start; // 保存init proc的栈基地址（由于之后取消了地址重映射，因此必须在这里重新保存）
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kdebug("_stack_start=%#018lx", _stack_start);
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load_TR(10); // 加载TR寄存器
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set_tss64((uint *)&initial_tss[0], _stack_start, _stack_start, _stack_start, tss_item_addr,
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tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr, tss_item_addr);
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cpu_core_info[0].stack_start = _stack_start;
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cpu_core_info[0].tss_vaddr = (uint64_t)&initial_tss[0];
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kdebug("cpu_core_info[0].tss_vaddr=%#018lx", cpu_core_info[0].tss_vaddr);
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kdebug("cpu_core_info[0].stack_start%#018lx", cpu_core_info[0].stack_start);
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// 初始化中断描述符表
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sys_vector_init();
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// 初始化内存管理单元
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mm_init();
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// =========== 重新设置initial_tss[0]的ist
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uchar *ptr = (uchar *)kmalloc(STACK_SIZE, 0) + STACK_SIZE;
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((struct process_control_block *)(ptr - STACK_SIZE))->cpu_id = 0;
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initial_tss[0].ist1 = (ul)ptr;
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initial_tss[0].ist2 = (ul)ptr;
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initial_tss[0].ist3 = (ul)ptr;
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initial_tss[0].ist4 = (ul)ptr;
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initial_tss[0].ist5 = (ul)ptr;
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initial_tss[0].ist6 = (ul)ptr;
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initial_tss[0].ist7 = (ul)ptr;
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// ===========================
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acpi_init();
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// 初始化中断模块
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sched_init();
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irq_init();
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softirq_init();
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// 先初始化系统调用模块
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syscall_init();
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// 再初始化进程模块。顺序不能调转
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sched_init();
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timer_init();
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smp_init();
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cpu_init();
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// ps2_keyboard_init();
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// ps2_mouse_init();
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// ata_init();
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pci_init();
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ahci_init();
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// test_slab();
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// test_mm();
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// process_init();
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current_pcb->cpu_id = 0;
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current_pcb->preempt_count = 0;
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process_init();
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HPET_init();
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}
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//操作系统内核从这里开始执行
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void Start_Kernel(void)
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{
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// 获取multiboot2的信息
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uint64_t mb2_info, mb2_magic;
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__asm__ __volatile__("movq %%r15, %0 \n\t"
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"movq %%r14, %1 \n\t"
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"movq %%r13, %2 \n\t"
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"movq %%r12, %3 \n\t"
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: "=r"(mb2_info), "=r"(mb2_magic), "=r"(bsp_gdt_size), "=r"(bsp_idt_size)::"memory");
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reload_gdt();
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reload_idt();
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// 重新设置TSS描述符
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set_tss_descriptor(10, (void *)(&initial_tss[0]));
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mb2_info &= 0xffffffff;
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mb2_magic &= 0xffffffff;
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multiboot2_magic = (uint)mb2_magic;
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multiboot2_boot_info_addr = mb2_info + PAGE_OFFSET;
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system_initialize();
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uint64_t buf[100];
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ahci_operation.transfer(ATA_CMD_READ_DMA_EXT, 0, 1, (uint64_t)&buf, 0, 0);
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kdebug("buf[0]=%#010lx",(uint32_t)buf[0]);
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buf[0] = 0xffd3;
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ahci_operation.transfer(ATA_CMD_WRITE_DMA_EXT, 0, 1, (uint64_t)&buf, 0, 0);
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ahci_operation.transfer(ATA_CMD_READ_DMA_EXT, 0, 1, (uint64_t)&buf, 0, 0);
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kdebug("buf[0]=%#010lx",(uint32_t)buf[0]);
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// show_welcome();
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// test_mm();
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/*
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while (1)
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{
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ps2_keyboard_analyze_keycode();
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struct ps2_mouse_packet_3bytes packet = {0};
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// struct ps2_mouse_packet_4bytes packet = {0};
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int errcode = 0;
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errcode = ps2_mouse_get_packet(&packet);
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if (errcode == 0)
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{
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printk_color(GREEN, BLACK, " (Mouse: byte0:%d, x:%3d, y:%3d)\n", packet.byte0, packet.movement_x, packet.movement_y);
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// printk_color(GREEN, BLACK, " (Mouse: byte0:%d, x:%3d, y:%3d, byte3:%3d)\n", packet.byte0, packet.movement_x, packet.movement_y, (unsigned char)packet.byte3);
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}
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}
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*/
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/*
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while (1)
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{
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keyboard_analyze_keycode();
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analyze_mousecode();
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}
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*/
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// ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0xc8, ICR_APIC_FIXED, ICR_No_Shorthand, true, 1); // 测试ipi
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//int last_sec = rtc_now.second;
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/*
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while (1)
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{
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if (last_sec != rtc_now.second)
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{
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last_sec = rtc_now.second;
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kinfo("Current Time: %04d/%02d/%02d %02d:%02d:%02d", rtc_now.year, rtc_now.month, rtc_now.day, rtc_now.hour, rtc_now.minute, rtc_now.second);
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}
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}
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*/
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while (1)
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hlt();
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}
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void ignore_int()
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{
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kwarn("Unknown interrupt or fault at RIP.\n");
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return;
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} |