ntoskrnl/ke/arm/boot.s

   1 /*
   2  * PROJECT:         ReactOS Kernel
   3  * LICENSE:         BSD - See COPYING.ARM in the top level directory
   4  * FILE:            ntoskrnl/ke/arm/boot.s
   5  * PURPOSE:         Implements the kernel entry point for ARM machines
   6  * PROGRAMMERS:     ReactOS Portable Systems Group
   7  */
   8
   9     .title "ARM Kernel Entry Point"
  10     .include "ntoskrnl/include/internal/arm/kxarm.h"
  11     .include "ntoskrnl/include/internal/arm/ksarm.h"
  12
  13     TEXTAREA
  14     NESTED_ENTRY KiSystemStartup
  15     PROLOG_END KiSystemStartup
  16
  17     /* Put us in FIQ mode, set IRQ stack */
  18     msr cpsr_c, #CPSR_FIQ_MODE
  19     ldr sp, [a1, #LpbInterruptStack]
  20
  21     /* Repeat for IRQ mode */
  22     msr cpsr_c, #CPSR_IRQ_MODE
  23     ldr sp, [a1, #LpbInterruptStack]
  24
  25     /* Put us in ABORT mode and set the panic stack */
  26     msr cpsr_c, #CPSR_ABORT_MODE
  27     ldr sp, [a1, #LpbPanicStack]
  28
  29     /* Repeat for UND (Undefined) mode */
  30     msr cpsr_c, #CPSR_UND_MODE
  31     ldr sp, [a1, #LpbPanicStack]
  32
  33     /* Put us into SVC (Supervisor) mode and set the kernel stack */
  34     msr cpsr_c, #CPSR_SVC_MODE
  35     ldr sp, [a1, #LpbKernelStack]
  36
  37     /* Go to C code */
  38     b KiInitializeSystem
  39
  40     ENTRY_END KiSystemStartup
  41
  42 /* EOF */