Architectural Support: x86_64 (#37)

[lunaix-os.git] / lunaix-os / arch / i386 / boot / prologue.S

diff --git a/lunaix-os/arch/i386/boot/prologue.S b/lunaix-os/arch/i386/boot/prologue.S
deleted file mode 100644 (file)
index dc17242..0000000
--- a/lunaix-os/arch/i386/boot/prologue.S
+++ /dev/null
@@ -1,84 +0,0 @@
-/* 高半核入口点 - 0xC0000000 */
-
-#define __ASM__
-#include <sys/abi.h>
-#include <sys/failsafe.h>
-
-.section .bss.kstack
-    .global __kinit_stack_end
-    
-    .align 16
-    __kinit_stack_end:
-        .skip 2048, 0
-    __kinit_stack_top:
-    # TODO 
-    # This stack was too small that corrupt the ambient kernel structures.
-    #  (took me days to figure this out!)
-    # We should spent more time to implement a good strategy to detect such
-    #  run-over (we can check these invariants when we trapped in some non-recoverable
-    #  state and provide good feedback to user)
-
-.section .text
-    .global hhk_entry_
-    hhk_entry_:
-        /*
-            欢迎来到虚拟内存的世界！ :D
-         */
-        movl $__kinit_stack_top, %esp
-        andl $stack_alignment, %esp
-
-        movl $__kinit_stack_end, %eax
-        movl $STACK_SANITY, (%eax)
-        movl $STACK_SANITY, 4(%eax)
-        movl $STACK_SANITY, 8(%eax)
-        movl $STACK_SANITY, 12(%eax)
-
-        subl $16, %esp
-
-        /* 
-            加载 GDT 
-            P.s. 虽然GDT在分页后已变得不重要，甚至可以忽略不作。但为了保持完整性，还是选择加载他
-                    这主要是为了保险起见，让GDTR有一个合法的值，否则多咱的粗心大意，容易出#GP
-        */
-        call _init_gdt
-
-        movl $_gdt, 2(%esp)
-        movw _gdt_limit, %ax
-        movw %ax, (%esp)
-        lgdt (%esp)
-
-        /* 更新段寄存器 */
-        movw $KDATA_SEG, %cx
-        movw %cx, %es
-        movw %cx, %ds
-        movw %cx, %fs
-        movw %cx, %gs
-        movw %cx, %ss
-        
-        /* 更新 CS:EIP */
-        pushw $KCODE_SEG
-        pushl $_after_gdt
-        retf
-
-    _after_gdt:
-        subl $16, %esp
-
-        # 加载 IDT
-        movl $_idt, 2(%esp)
-        movw _idt_limit, %ax
-        movw %ax, (%esp)
-        lidt (%esp)
-
-        # perform arch-specific initialization before diving into kernel
-        call arch_preinit
-
-        /* 加载TSS段选择器 */
-        movw $TSS_SEG, %ax
-        ltr %ax
-
-        movl $bhctx_buffer, (%esp)       # mb_parser.c
-        call kernel_bootstrap
-
-    1:
-        hlt
-        jmp 1b
\ No newline at end of file