Kernel/arch/x86_64/desctab.asm

   1 ;
   2 ;
   3 ;
   4 [BITS 64]
   5
   6 MM_LOCALAPIC    equ     0xFFFFFD0000000000
   7
   8 [section .text]
   9 Desctab_Init:
  10         ; Install IRQ Handlers
  11
  12 [section .data]
  13 gIDT:
  14         times 256       dw      0x00080000, 0x00008E00, 0, 0    ; 64-bit Interrupt Gate, CS = 0x8, IST0
  15
  16 %macro DEFERR   1
  17 Isr%1:
  18         push    0
  19         push    %1
  20         jmp     ErrorCommon
  21 %endmacro
  22 %macro DEFERRNO 1
  23 Isr%1:
  24         push    %1
  25         jmp     ErrorCommon
  26 %endmacro
  27
  28 %macro DEFIRQ   1
  29 Irq%1:
  30         push    0
  31         push    %1
  32         jmp     IrqCommon
  33 %endmacro
  34
  35 %macro PUSH_EX  1-*
  36         %rep %0
  37         push %1
  38         %rotate 1
  39         %endrep
  40 %endmacro
  41 %macro POP_EX   1-*
  42         %rep %0
  43         %rotate -1
  44         pop %1
  45         %endrep
  46 %endmacro
  47
  48 %macro PUSH_GPR 0
  49         PUSH_EX r15, r14, r13, r12, r11, r10, r9, r8
  50         PUSH_EX rsi, rdi, rbp, rsp, rbx, rdx, rcx, rax
  51 %endmacro
  52 %macro POP_GPR  0
  53         POP_EX  rsi, rdi, rbp, rsp, rbx, rdx, rcx, rax
  54         POP_EX  r15, r14, r13, r12, r11, r10, r9, r8
  55 %endmacro
  56
  57 [extern Proc_Scheduler]
  58 SchedulerIRQ:
  59         ; TODO: Find Current CPU
  60         PUSH_GPR
  61         ;PUSH_FPU
  62         ;PUSH_XMM
  63
  64         xor rsi, rsi
  65         mov rdi, MM_LOCALAPIC+0x20
  66         mov esi, [rdi]
  67         call Proc_Scheduler
  68
  69         ;POP_XMM
  70         ;POP_FPU
  71         POP_GPR
  72         iret