lunaix-os/kernel/asm/x86/intr_routines.c

   1 #include <arch/x86/interrupts.h>
   2 #include <lunaix/process.h>
   3 #include <lunaix/spike.h>
   4 #include <lunaix/syslog.h>
   5 #include <lunaix/tty/tty.h>
   6
   7 #include <klibc/stdio.h>
   8
   9 #include <hal/apic.h>
  10
  11 LOG_MODULE("INTR")
  12
  13 extern void
  14 intr_routine_page_fault(const isr_param* param);
  15
  16 extern uint32_t debug_resv;
  17
  18 void
  19 __print_panic_msg(const char* msg, const isr_param* param)
  20 {
  21     kprint_panic("  INT %u: (%x) [%p: %p] %s",
  22                  param->vector,
  23                  param->err_code,
  24                  param->cs,
  25                  param->eip,
  26                  msg);
  27 }
  28
  29 void
  30 intr_routine_divide_zero(const isr_param* param)
  31 {
  32     __print_panic_msg("Divide by zero!", param);
  33     spin();
  34 }
  35
  36 void
  37 intr_routine_general_protection(const isr_param* param)
  38 {
  39     kprintf(KERROR "Addr: %p\n", (&debug_resv)[0]);
  40     kprintf(KERROR "Expected: %p\n", __current->intr_ctx.eip);
  41     __print_panic_msg("General Protection", param);
  42     spin();
  43 }
  44
  45 void
  46 intr_routine_sys_panic(const isr_param* param)
  47 {
  48     __print_panic_msg((char*)(param->registers.edi), param);
  49     spin();
  50 }
  51
  52 void
  53 intr_routine_fallback(const isr_param* param)
  54 {
  55     __print_panic_msg("Unknown Interrupt", param);
  56     spin();
  57 }
  58
  59 /**
  60  * @brief ISR for Spurious interrupt
  61  *
  62  * @param isr_param passed by CPU
  63  */
  64 void
  65 intr_routine_apic_spi(const isr_param* param)
  66 {
  67     // FUTURE: do nothing for now
  68 }
  69
  70 void
  71 intr_routine_apic_error(const isr_param* param)
  72 {
  73     uint32_t error_reg = apic_read_reg(APIC_ESR);
  74     char buf[32];
  75     sprintf(buf, "APIC error, ESR=0x%x", error_reg);
  76     __print_panic_msg(buf, param);
  77     spin();
  78 }
  79
  80 void
  81 intr_routine_init()
  82 {
  83     intr_subscribe(FAULT_DIVISION_ERROR, intr_routine_divide_zero);
  84     intr_subscribe(FAULT_GENERAL_PROTECTION, intr_routine_general_protection);
  85     intr_subscribe(FAULT_PAGE_FAULT, intr_routine_page_fault);
  86     intr_subscribe(FAULT_STACK_SEG_FAULT, intr_routine_page_fault);
  87     intr_subscribe(LUNAIX_SYS_PANIC, intr_routine_sys_panic);
  88     intr_subscribe(APIC_SPIV_IV, intr_routine_apic_spi);
  89     intr_subscribe(APIC_ERROR_IV, intr_routine_apic_error);
  90
  91     intr_set_fallback_handler(intr_routine_fallback);
  92 }