trap.h

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#ifndef __TRAP_H__
#define __TRAP_H__
 
#define T_DE            0       /* Divide Error Exception */
#define T_DB            1       /* Debug Exception */
#define T_NMI           2       /* NMI Interrupt */
#define T_BP            3       /* Breakpoint Exception */
#define T_OF            4       /* Overflow Exception */
#define T_BR            5       /* BOUND Range Exceeded Exception */
#define T_UD            6       /* Invalid Opcode Exception */
#define T_NM            7       /* Device Not Available Exception */
#define T_DF            8       /* Double Fault Exception */
#define T_TS            10      /* Invalid TSS Exception */
#define T_NP            11      /* Segment Not Present */
#define T_SS            12      /* Stack Fault Exception */
#define T_GP            13      /* General Protection Exception */
#define T_PF            14      /* Page-Fault Exception */
#define T_MF            16      /* x87 FPU Floating-Point Error */
#define T_AC            17      /* Alignment Check Exception */
#define T_MC            18      /* Machine-Check Exception */
#define T_XF            19      /* SIMB Floating-Point Exception */
#define T_VE            20      /* Virtualization Exception */
 
#define T_CPU_LAST      T_VE
 
// IRQs
#define T_IRQ_BASE      32
#define T_IRQ_LEN       24
#define T_IRQ_MAX       (T_IRQ_BASE + T_IRQ_LEN - 1)
 
#define T_IRQ_TIMER     (T_IRQ_BASE + 0)
#define T_IRQ_KBD       (T_IRQ_BASE + 1)
#define T_IRQ_COM1      (T_IRQ_BASE + 4)
#define T_IRQ_MOUSE     (T_IRQ_BASE + 12)
 
// LAPIC Special Vectors
#define T_IRQ_SPURIOUS  (T_IRQ_BASE + 24)
#define T_IRQ_ERROR     (T_IRQ_BASE + 25)
#define T_IRQ_THERMAL   (T_IRQ_BASE + 26)
 
#define T_SYSCALL       60      /* System Call */
#define T_CROSSCALL     61      /* Cross Call (IPI) */
#define T_DEBUGIPI      62      /* Kernel Debugger Halt (IPI) */
 
#define T_UNKNOWN       63      /* Unknown Trap */
 
#define T_MAX           64
 
typedef struct TrapFrame
{
    uint64_t    r15;
    uint64_t    r14;
    uint64_t    r13;
    uint64_t    r12;
    uint64_t    r11;
    uint64_t    r10;
    uint64_t    r9;
    uint64_t    r8;
    uint64_t    rbp;
    uint64_t    rdi;
    uint64_t    rsi;
    uint64_t    rdx;
    uint64_t    rcx;
    uint64_t    rbx;
    uint64_t    ds;
    uint64_t    rax;
 
    uint64_t    vector;
    uint32_t    errcode;
    uint32_t    _unused0;
    uint64_t    rip;
    uint16_t    cs;
    uint16_t    _unused1;
    uint16_t    _unused2;
    uint16_t    _unused3;
    uint64_t    rflags;
    uint64_t    rsp;
    uint16_t    ss;
    uint16_t    _unused4;
    uint16_t    _unused5;
    uint16_t    _unused6;
} TrapFrame;
 
void Trap_Init();
void Trap_InitAP();
void Trap_Dump(TrapFrame *tf);
void Trap_Pop(TrapFrame *tf);
 
#endif /* __TRAP_H__ */