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

   1 #include <arch/x86/interrupts.h>
   2 #include <lunaix/lxconsole.h>
   3 #include <lunaix/process.h>
   4 #include <lunaix/spike.h>
   5 #include <lunaix/syslog.h>
   6 #include <lunaix/tty/tty.h>
   7
   8 #include <klibc/stdio.h>
   9
  10 #include <hal/apic.h>
  11
  12 LOG_MODULE("INTR")
  13
  14 extern void
  15 intr_routine_page_fault(const isr_param* param);
  16
  17 extern uint32_t debug_resv;
  18
  19 void
  20 __print_panic_msg(const char* msg, const isr_param* param)
  21 {
  22     kprint_panic("  INT %u: (%x) [%p: %p] %s",
  23                  param->vector,
  24                  param->err_code,
  25                  param->cs,
  26                  param->eip,
  27                  msg);
  28 }
  29
  30 void
  31 intr_routine_divide_zero(const isr_param* param)
  32 {
  33     console_flush();
  34     __print_panic_msg("Divide by zero!", param);
  35     spin();
  36 }
  37
  38 void
  39 intr_routine_general_protection(const isr_param* param)
  40 {
  41     kprintf(KERROR "Pid: %d\n", __current->pid);
  42     kprintf(KERROR "Addr: %p\n", (&debug_resv)[0]);
  43     kprintf(KERROR "Expected: %p\n", (&debug_resv)[1]);
  44     console_flush();
  45     __print_panic_msg("General Protection", param);
  46     spin();
  47 }
  48
  49 void
  50 intr_routine_sys_panic(const isr_param* param)
  51 {
  52     console_flush();
  53     __print_panic_msg((char*)(param->registers.edi), param);
  54     spin();
  55 }
  56
  57 void
  58 intr_routine_fallback(const isr_param* param)
  59 {
  60     console_flush();
  61     __print_panic_msg("Unknown Interrupt", param);
  62     spin();
  63 }
  64
  65 /**
  66  * @brief ISR for Spurious interrupt
  67  *
  68  * @param isr_param passed by CPU
  69  */
  70 void
  71 intr_routine_apic_spi(const isr_param* param)
  72 {
  73     // FUTURE: do nothing for now
  74 }
  75
  76 void
  77 intr_routine_apic_error(const isr_param* param)
  78 {
  79     uint32_t error_reg = apic_read_reg(APIC_ESR);
  80     char buf[32];
  81     sprintf(buf, "APIC error, ESR=0x%x", error_reg);
  82     console_flush();
  83     __print_panic_msg(buf, param);
  84     spin();
  85 }
  86
  87 void
  88 intr_routine_init()
  89 {
  90     intr_subscribe(FAULT_DIVISION_ERROR, intr_routine_divide_zero);
  91     intr_subscribe(FAULT_GENERAL_PROTECTION, intr_routine_general_protection);
  92     intr_subscribe(FAULT_PAGE_FAULT, intr_routine_page_fault);
  93     intr_subscribe(FAULT_STACK_SEG_FAULT, intr_routine_page_fault);
  94     intr_subscribe(LUNAIX_SYS_PANIC, intr_routine_sys_panic);
  95     intr_subscribe(APIC_SPIV_IV, intr_routine_apic_spi);
  96     intr_subscribe(APIC_ERROR_IV, intr_routine_apic_error);
  97
  98     intr_set_fallback_handler(intr_routine_fallback);
  99 }