X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/620a2ee90a60979955c318cc1b37741184137bd6..bc34fd00d2e81fbc890bb2060ed6693454a230bf:/lunaix-os/kernel/k_init.c diff --git a/lunaix-os/kernel/k_init.c b/lunaix-os/kernel/k_init.c index c173ad9..b0aee84 100644 --- a/lunaix-os/kernel/k_init.c +++ b/lunaix-os/kernel/k_init.c @@ -2,6 +2,8 @@ #include #include +#include +#include #include #include #include @@ -58,7 +60,12 @@ _kernel_pre_init() vmm_init(); rtc_init(); - tty_init((void*)VGA_BUFFER_PADDR); + unsigned int map_size = + _k_init_mb_info->mmap_length / sizeof(multiboot_memory_map_t); + + setup_memory((multiboot_memory_map_t*)_k_init_mb_info->mmap_addr, map_size); + + tty_init((void*)VGA_BUFFER_VADDR); tty_set_theme(VGA_COLOR_WHITE, VGA_COLOR_BLACK); __kernel_ptd = cpu_rcr3(); @@ -71,18 +78,20 @@ _kernel_pre_init() void _kernel_init() { - kprintf("[MM] Mem: %d KiB, Extended Mem: %d KiB\n", - _k_init_mb_info->mem_lower, - _k_init_mb_info->mem_upper); - unsigned int map_size = - _k_init_mb_info->mmap_length / sizeof(multiboot_memory_map_t); + cake_init(); + valloc_init(); - setup_memory((multiboot_memory_map_t*)_k_init_mb_info->mmap_addr, map_size); + fsm_init(); + vfs_init(); + twifs_init(); + + device_init(); + + // 挂载 TwiFS 为根目录 + vfs_mount("/", "twifs", -1); - kprintf(KINFO "[MM] Allocated %d pages for stack start at %p\n", - KSTACK_SIZE >> PG_SIZE_BITS, - KSTACK_START); + lxconsole_init(); sched_init(); @@ -181,31 +190,23 @@ setup_memory(multiboot_memory_map_t* map, size_t map_size) // First pass, to mark the physical pages for (unsigned int i = 0; i < map_size; i++) { multiboot_memory_map_t mmap = map[i]; - kprintf("[MM] Base: 0x%x, len: %u KiB, type: %u\n", - map[i].addr_low, - map[i].len_low >> 10, - map[i].type); if (mmap.type == MULTIBOOT_MEMORY_AVAILABLE) { // 整数向上取整除法 uintptr_t pg = map[i].addr_low + 0x0fffU; pmm_mark_chunk_free(pg >> PG_SIZE_BITS, map[i].len_low >> PG_SIZE_BITS); - kprintf(KINFO "[MM] Freed %u pages start from 0x%x\n", - map[i].len_low >> PG_SIZE_BITS, - pg & ~0x0fffU); } } // 将内核占据的页,包括前1MB,hhk_init 设为已占用 size_t pg_count = V2P(&__kernel_end) >> PG_SIZE_BITS; pmm_mark_chunk_occupied(KERNEL_PID, 0, pg_count, 0); - kprintf(KINFO "[MM] Allocated %d pages for kernel.\n", pg_count); size_t vga_buf_pgs = VGA_BUFFER_SIZE >> PG_SIZE_BITS; - // 首先,标记VGA部分为已占用 + // 首先,标记VGA部分为已占用,并且锁定 pmm_mark_chunk_occupied( - KERNEL_PID, VGA_BUFFER_PADDR >> PG_SIZE_BITS, vga_buf_pgs, 0); + KERNEL_PID, VGA_BUFFER_PADDR >> PG_SIZE_BITS, vga_buf_pgs, PP_FGLOCKED); // 重映射VGA文本缓冲区(以后会变成显存,i.e., framebuffer) for (size_t i = 0; i < vga_buf_pgs; i++) { @@ -216,16 +217,7 @@ setup_memory(multiboot_memory_map_t* map, size_t map_size) VMAP_NULL); } - assert_msg(!((uintptr_t)&__usrtext_start & 0xfff) && - !((uintptr_t)&__usrtext_end & 0xfff), - "Bad usrtext alignment"); - for (uintptr_t i = &__usrtext_start; i < &__usrtext_end; i += PG_SIZE) { vmm_set_mapping(PD_REFERENCED, i, V2P(i), PG_PREM_UR, VMAP_NULL); } - - // 更新VGA缓冲区位置至虚拟地址 - tty_set_buffer((void*)VGA_BUFFER_VADDR); - - kprintf(KINFO "[MM] Mapped VGA to %p.\n", VGA_BUFFER_VADDR); }