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/*
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/*
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 * Called directly from the assembler code.
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 * Called directly from the assembler code.
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 * CPU is cpu_priority_high().
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 * CPU is cpu_priority_high().
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 */
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 */
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void trap_dispatcher(__u8 n, __u32 stack[])
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void trap_dispatcher(__u8 n, __native stack[])
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{
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{
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    ASSERT(n < IVT_ITEMS);
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    ASSERT(n < IVT_ITEMS);
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    ivt[n](n, stack);
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    ivt[n](n, stack);
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}
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}
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void null_interrupt(__u8 n, __u32 stack[])
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void null_interrupt(__u8 n, __native stack[])
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{
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{
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    printf("int %d: null_interrupt\n", n);
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    printf("int %d: null_interrupt\n", n);
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    printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]);
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    printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]);
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    panic("unserviced interrupt\n");
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    panic("unserviced interrupt\n");
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}
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}
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void gp_fault(__u8 n, __u32 stack[])
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void gp_fault(__u8 n, __native stack[])
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{
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{
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    printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
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    printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
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    printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
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    printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
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    printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
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    printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
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    panic("general protection fault\n");
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    panic("general protection fault\n");
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    stack[1]++;
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    stack[1]++;
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}
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}
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void ss_fault(__u8 n, __u32 stack[])
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void ss_fault(__u8 n, __native stack[])
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{
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{
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    printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
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    printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
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    printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
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    printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
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    printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
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    printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
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    panic("stack fault\n");
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    panic("stack fault\n");
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}
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}
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void nm_fault(__u8 n, __u32 stack[])
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void nm_fault(__u8 n, __native stack[])
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{
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{
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    reset_TS_flag();
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    reset_TS_flag();
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    if ((CPU->fpu_owner)!=NULL) {  
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    if ((CPU->fpu_owner)!=NULL) {  
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        fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context));
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        fpu_lazy_context_save(&((CPU->fpu_owner)->saved_fpu_context));
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        (CPU->fpu_owner)->fpu_context_engaged=0; /* don't prevent migration */
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        (CPU->fpu_owner)->fpu_context_engaged=0; /* don't prevent migration */
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    CPU->fpu_owner=THREAD;
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    CPU->fpu_owner=THREAD;
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}
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}
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void page_fault(__u8 n, __u32 stack[])
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void page_fault(__u8 n, __native stack[])
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{
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{
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    printf("page fault address: %X\n", read_cr2());
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    printf("page fault address: %X\n", read_cr2());
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    printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
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    printf("ERROR_WORD=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
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    printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
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    printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
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    printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
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    printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
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    panic("page fault\n");
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    panic("page fault\n");
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}
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}
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void syscall(__u8 n, __u32 stack[])
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void syscall(__u8 n, __native stack[])
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{
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{
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    printf("cpu%d: syscall\n", CPU->id);
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    printf("cpu%d: syscall\n", CPU->id);
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    thread_usleep(1000);
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    thread_usleep(1000);
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}
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}
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127 
void tlb_shootdown_ipi(__u8 n, __u32 stack[])
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void tlb_shootdown_ipi(__u8 n, __native stack[])
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{
 128 
{
129 
    trap_virtual_eoi();
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    trap_virtual_eoi();
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    tlb_shootdown_ipi_recv();
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    tlb_shootdown_ipi_recv();
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}
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}
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133 
void wakeup_ipi(__u8 n, __u32 stack[])
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void wakeup_ipi(__u8 n, __native stack[])
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{
 134 
{
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    trap_virtual_eoi();
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    trap_virtual_eoi();
136 
}
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}
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void trap_virtual_enable_irqs(__u16 irqmask)
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void trap_virtual_enable_irqs(__u16 irqmask)