ntoskrnl/ke/powerpc/main_asm.S

   1 #include <ndk/asm.h>
   2
   3 #define AP_MAGIC (0x12481020)
   4
   5 .global P0BootStack
   6 .global KiDoubleFaultStack
   7 .global _kernel_stack
   8 .global _kernel_stack_top
   9 .global _kernel_trap_stack
  10 .global _kernel_trap_stack_top
  11
  12         .section .bss
  13         .align 12
  14
  15
  16 /* guard page for the kernel stack */
  17 .fill 4096, 1, 0
  18
  19 _kernel_stack:
  20 .fill 3*4096, 1, 0
  21 P0BootStack:
  22 _kernel_stack_top:
  23
  24 /* guard page for the trap stack */
  25 .fill 4096, 1, 0
  26
  27 _kernel_trap_stack:
  28 .fill 3*4096, 1, 0
  29 _kernel_trap_stack_top:
  30
  31 .fill 3*4096, 1, 0
  32 KiDoubleFaultStack:
  33
  34         .text
  35         .globl KiSystemStartup
  36         .globl KiRosPrepareForSystemStartup
  37         .globl DrawNumber
  38
  39 KiSystemStartup:
  40     /*
  41      * Set a normal MSR value
  42      */
  43     xor         0,0,0
  44     ori         30,0,0x3030
  45     mtmsr       30
  46
  47     /*
  48      *  Reserve space for the floating point save area.
  49      */
  50     addi  1,1,-SIZEOF_FX_SAVE_AREA
  51
  52     /* Bye bye asm land! */
  53     mr          4,3
  54
  55     /* Load the initial kernel stack */
  56     lis         1,_kernel_stack_top@ha
  57     ori         1,1,_kernel_stack_top@l
  58     addi        1,1,-SIZEOF_FX_SAVE_AREA
  59
  60     /* Call the main kernel initialization */
  61     bl          KiRosPrepareForSystemStartup
  62
  63         .global NtCurrentTeb
  64 NtCurrentTeb:
  65         mr 3,12
  66         blr
  67
  68         .globl KeSynchronizeExecution
  69
  70 KeSynchronizeExecution:
  71         blr
  72
  73         .globl PearPCDebug
  74 PearPCDebug:
  75 //        .long 0x00333303
  76         blr