X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/9b8e0c494de6b447b44454112748f702dffec90d..2a49908006b177c4d6354309333d06b1b96e4887:/lunaix-os/kernel/k_init.c

diff --git a/lunaix-os/kernel/k_init.c b/lunaix-os/kernel/k_init.c
index e98be88..d399251 100644
--- a/lunaix-os/kernel/k_init.c
+++ b/lunaix-os/kernel/k_init.c
@@ -1,18 +1,20 @@
 #include <lunaix/common.h>
-#include <lunaix/tty/tty.h>
-
 #include <lunaix/device.h>
 #include <lunaix/foptions.h>
 #include <lunaix/input.h>
 #include <lunaix/isrm.h>
 #include <lunaix/lxconsole.h>
+#include <lunaix/mm/cake.h>
 #include <lunaix/mm/mmio.h>
 #include <lunaix/mm/page.h>
 #include <lunaix/mm/pmm.h>
+#include <lunaix/mm/valloc.h>
 #include <lunaix/mm/vmm.h>
 #include <lunaix/process.h>
 #include <lunaix/sched.h>
 #include <lunaix/spike.h>
+#include <lunaix/syscall.h>
+#include <lunaix/tty/tty.h>
 #include <lunaix/types.h>
 
 #include <arch/x86/boot/multiboot.h>
@@ -22,9 +24,9 @@
 #include <klibc/stdio.h>
 #include <klibc/string.h>
 
-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)
 
@@ -127,11 +129,7 @@ spawn_proc0()
     proc0->intr_ctx = (isr_param){ .registers = { .ds = KDATA_SEG,
                                                   .es = KDATA_SEG,
                                                   .fs = KDATA_SEG,
-                                                  .gs = KDATA_SEG },
-                                   .cs = KCODE_SEG,
-                                   .eip = (void*)__proc0,
-                                   .ss = KDATA_SEG,
-                                   .eflags = cpu_reflags() };
+                                                  .gs = KDATA_SEG } };
     proc0->parent = proc0;
 
     // 方案1：必须在读取eflags之后禁用。否则当进程被调度时，中断依然是关闭的！
@@ -147,7 +145,7 @@ 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);
+        ptr_t pa = pmm_alloc_page(KERNEL_PID, 0);
         vmm_set_mapping(VMS_SELF,
                         KSTACK_START + (i << PG_SIZE_BITS),
                         pa,
@@ -155,19 +153,14 @@ spawn_proc0()
                         VMAP_NULL);
     }
 
-    // 手动设置进程上下文：用于第一次调度
-    asm volatile("movl %%esp, %%ebx\n"
-                 "movl %1, %%esp\n"
-                 "pushf\n"
-                 "pushl %2\n"
-                 "pushl %3\n"
-                 "pushl $0\n"
-                 "pushl $0\n"
-                 "movl %%esp, %0\n"
-                 "movl %%ebx, %%esp\n"
-                 : "=m"(proc0->intr_ctx.registers.esp)
-                 : "i"(KSTACK_TOP), "i"(KCODE_SEG), "r"(proc0->intr_ctx.eip)
-                 : "%ebx", "memory");
+    struct exec_param* execp =
+      (struct exec_param*)(KSTACK_TOP - sizeof(struct exec_param));
+
+    *execp = (struct exec_param){ .cs = KCODE_SEG,
+                                  .eip = (ptr_t)__proc0,
+                                  .ss = KDATA_SEG,
+                                  .eflags = cpu_reflags() };
+    proc0->intr_ctx.execp = execp;
 
     // 加载x87默认配置
     asm volatile("fninit\n"
@@ -186,8 +179,8 @@ spawn_proc0()
     assert_msg(0, "Unexpected Return");
 }
 
-extern void __usrtext_start;
-extern void __usrtext_end;
+extern u8_t __usrtext_start;
+extern u8_t __usrtext_end;
 
 // 按照 Memory map 标识可用的物理页
 void
@@ -199,7 +192,7 @@ 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);
         }
@@ -209,7 +202,8 @@ 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) {
+    for (ptr_t i = (ptr_t)&__usrtext_start; i < (ptr_t)&__usrtext_end;
+         i += PG_SIZE) {
         vmm_set_mapping(VMS_SELF, i, V2P(i), PG_PREM_UR, VMAP_NULL);
     }