X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/98fd6cb58b5bbc55cd9ceb45bd27b45a3b222df7..87067c7f16425837971f5c1b5fd0fc5338757377:/lunaix-os/kernel/k_init.c diff --git a/lunaix-os/kernel/k_init.c b/lunaix-os/kernel/k_init.c index 25af27e..71adb30 100644 --- a/lunaix-os/kernel/k_init.c +++ b/lunaix-os/kernel/k_init.c @@ -1,18 +1,20 @@ #include -#include - #include #include #include #include #include +#include #include #include #include +#include #include #include #include #include +#include +#include #include #include @@ -22,9 +24,9 @@ #include #include -extern uint8_t __kernel_start; -extern uint8_t __kernel_end; -extern uint8_t __init_hhk_end; +extern u8_t __kernel_start; +extern u8_t __kernel_end; +extern u8_t __init_hhk_end; #define PP_KERN_SHARED (PP_FGSHARED | PP_TKERN) @@ -143,8 +145,8 @@ spawn_proc0() // 为内核创建一个专属栈空间。 for (size_t i = 0; i < (KSTACK_SIZE >> PG_SIZE_BITS); i++) { - uintptr_t pa = pmm_alloc_page(KERNEL_PID, 0); - vmm_set_mapping(PD_REFERENCED, + ptr_t pa = pmm_alloc_page(KERNEL_PID, 0); + vmm_set_mapping(VMS_SELF, KSTACK_START + (i << PG_SIZE_BITS), pa, PG_PREM_RW, @@ -155,7 +157,7 @@ spawn_proc0() (struct exec_param*)(KSTACK_TOP - sizeof(struct exec_param)); *execp = (struct exec_param){ .cs = KCODE_SEG, - .eip = (void*)__proc0, + .eip = (ptr_t)__proc0, .ss = KDATA_SEG, .eflags = cpu_reflags() }; proc0->intr_ctx.execp = execp; @@ -177,9 +179,6 @@ spawn_proc0() assert_msg(0, "Unexpected Return"); } -extern void __usrtext_start; -extern void __usrtext_end; - // 按照 Memory map 标识可用的物理页 void setup_memory(multiboot_memory_map_t* map, size_t map_size) @@ -190,7 +189,7 @@ setup_memory(multiboot_memory_map_t* map, size_t map_size) multiboot_memory_map_t mmap = map[i]; if (mmap.type == MULTIBOOT_MEMORY_AVAILABLE) { // 整数向上取整除法 - uintptr_t pg = map[i].addr_low + 0x0fffU; + ptr_t pg = map[i].addr_low + 0x0fffU; pmm_mark_chunk_free(pg >> PG_SIZE_BITS, map[i].len_low >> PG_SIZE_BITS); } @@ -200,12 +199,8 @@ setup_memory(multiboot_memory_map_t* map, size_t map_size) size_t pg_count = V2P(&__kernel_end) >> PG_SIZE_BITS; pmm_mark_chunk_occupied(KERNEL_PID, 0, pg_count, PP_FGLOCKED); - 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); - } - // reserve higher half for (size_t i = L1_INDEX(KERNEL_MM_BASE); i < 1023; i++) { - assert(vmm_set_mapping(PD_REFERENCED, i << 22, 0, 0, VMAP_NOMAP)); + assert(vmm_set_mapping(VMS_SELF, i << 22, 0, 0, VMAP_NOMAP)); } }