refactor: restructure the user space stuff.

[lunaix-os.git] / lunaix-os / arch / x86 / boot.S

diff --git a/lunaix-os/arch/x86/boot.S b/lunaix-os/arch/x86/boot.S
index 938db876514333b8a8f0dec1b1d598590b51f80d..d1d14ba7e8af8ded3708aab9aa81fb330d65f62a 100644 (file)
--- a/lunaix-os/arch/x86/boot.S
+++ b/lunaix-os/arch/x86/boot.S
@@ -18,8 +18,8 @@
     /* 根据System V ABI，栈地址必须16字节对齐 */
     /* 这里只是一个临时栈，在_hhk_init里面我们会初始化内核专用栈 */
     stack_bottom:
-        .skip 16318 * 2, 0
-    stack_top:
+        .skip 4096, 0
+    __stack_top:
 
 
 /* 
@@ -44,7 +44,7 @@
         cld
         # 确保屏蔽所有外中断，直到我们准备好PIC为止
         cli
-        movl $stack_top, %esp
+        movl $__stack_top, %esp
 
         subl $16, %esp
 
@@ -78,7 +78,7 @@
         movl %eax, %cr3
 
         movl %cr0, %eax
-        orl $0x80010000, %eax   /* 开启分页与地址转换 (CR0.PG=1, CR0.WP=1) */
+        orl $0x80000000, %eax   /* 开启分页与地址转换 (CR0.PG=1, CR0.WP=0) */
         andl $0xfffffffb, %eax
         orl $0x2, %eax          /* 启用x87 FPU (CR0.MP=1, CR0.EM=0) */
         movl %eax, %cr0