1 #ifndef _ASM_X86_TRAPS_H 2 #define _ASM_X86_TRAPS_H 3 4 #include <linux/context_tracking_state.h> 5 #include <linux/kprobes.h> 6 7 #include <asm/debugreg.h> 8 #include <asm/siginfo.h> /* TRAP_TRACE, ... */ 9 10 #define dotraplinkage __visible 11 12 asmlinkage void divide_error(void); 13 asmlinkage void debug(void); 14 asmlinkage void nmi(void); 15 asmlinkage void int3(void); 16 asmlinkage void xen_debug(void); 17 asmlinkage void xen_int3(void); 18 asmlinkage void xen_stack_segment(void); 19 asmlinkage void overflow(void); 20 asmlinkage void bounds(void); 21 asmlinkage void invalid_op(void); 22 asmlinkage void device_not_available(void); 23 #ifdef CONFIG_X86_64 24 asmlinkage void double_fault(void); 25 #endif 26 asmlinkage void coprocessor_segment_overrun(void); 27 asmlinkage void invalid_TSS(void); 28 asmlinkage void segment_not_present(void); 29 asmlinkage void stack_segment(void); 30 asmlinkage void general_protection(void); 31 asmlinkage void page_fault(void); 32 asmlinkage void async_page_fault(void); 33 asmlinkage void spurious_interrupt_bug(void); 34 asmlinkage void coprocessor_error(void); 35 asmlinkage void alignment_check(void); 36 #ifdef CONFIG_X86_MCE 37 asmlinkage void machine_check(void); 38 #endif /* CONFIG_X86_MCE */ 39 asmlinkage void simd_coprocessor_error(void); 40 41 #ifdef CONFIG_TRACING 42 asmlinkage void trace_page_fault(void); 43 #define trace_stack_segment stack_segment 44 #define trace_divide_error divide_error 45 #define trace_bounds bounds 46 #define trace_invalid_op invalid_op 47 #define trace_device_not_available device_not_available 48 #define trace_coprocessor_segment_overrun coprocessor_segment_overrun 49 #define trace_invalid_TSS invalid_TSS 50 #define trace_segment_not_present segment_not_present 51 #define trace_general_protection general_protection 52 #define trace_spurious_interrupt_bug spurious_interrupt_bug 53 #define trace_coprocessor_error coprocessor_error 54 #define trace_alignment_check alignment_check 55 #define trace_simd_coprocessor_error simd_coprocessor_error 56 #define trace_async_page_fault async_page_fault 57 #endif 58 59 dotraplinkage void do_divide_error(struct pt_regs *, long); 60 dotraplinkage void do_debug(struct pt_regs *, long); 61 dotraplinkage void do_nmi(struct pt_regs *, long); 62 dotraplinkage void do_int3(struct pt_regs *, long); 63 dotraplinkage void do_overflow(struct pt_regs *, long); 64 dotraplinkage void do_bounds(struct pt_regs *, long); 65 dotraplinkage void do_invalid_op(struct pt_regs *, long); 66 dotraplinkage void do_device_not_available(struct pt_regs *, long); 67 dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long); 68 dotraplinkage void do_invalid_TSS(struct pt_regs *, long); 69 dotraplinkage void do_segment_not_present(struct pt_regs *, long); 70 dotraplinkage void do_stack_segment(struct pt_regs *, long); 71 #ifdef CONFIG_X86_64 72 dotraplinkage void do_double_fault(struct pt_regs *, long); 73 asmlinkage struct pt_regs *sync_regs(struct pt_regs *); 74 #endif 75 dotraplinkage void do_general_protection(struct pt_regs *, long); 76 dotraplinkage void do_page_fault(struct pt_regs *, unsigned long); 77 #ifdef CONFIG_TRACING 78 dotraplinkage void trace_do_page_fault(struct pt_regs *, unsigned long); 79 #else 80 static inline void trace_do_page_fault(struct pt_regs *regs, unsigned long error) 81 { 82 do_page_fault(regs, error); 83 } 84 #endif 85 dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long); 86 dotraplinkage void do_coprocessor_error(struct pt_regs *, long); 87 dotraplinkage void do_alignment_check(struct pt_regs *, long); 88 #ifdef CONFIG_X86_MCE 89 dotraplinkage void do_machine_check(struct pt_regs *, long); 90 #endif 91 dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long); 92 #ifdef CONFIG_X86_32 93 dotraplinkage void do_iret_error(struct pt_regs *, long); 94 #endif 95 96 static inline int get_si_code(unsigned long condition) 97 { 98 if (condition & DR_STEP) 99 return TRAP_TRACE; 100 else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)) 101 return TRAP_HWBKPT; 102 else 103 return TRAP_BRKPT; 104 } 105 106 extern int panic_on_unrecovered_nmi; 107 108 void math_emulate(struct math_emu_info *); 109 #ifndef CONFIG_X86_32 110 asmlinkage void smp_thermal_interrupt(void); 111 asmlinkage void smp_threshold_interrupt(void); 112 asmlinkage void smp_deferred_error_interrupt(void); 113 #endif 114 115 extern void ist_enter(struct pt_regs *regs); 116 extern void ist_exit(struct pt_regs *regs); 117 extern void ist_begin_non_atomic(struct pt_regs *regs); 118 extern void ist_end_non_atomic(void); 119 120 #ifdef CONFIG_VMAP_STACK 121 void __noreturn handle_stack_overflow(const char *message, 122 struct pt_regs *regs, 123 unsigned long fault_address); 124 #endif 125 126 /* Interrupts/Exceptions */ 127 enum { 128 X86_TRAP_DE = 0, /* 0, Divide-by-zero */ 129 X86_TRAP_DB, /* 1, Debug */ 130 X86_TRAP_NMI, /* 2, Non-maskable Interrupt */ 131 X86_TRAP_BP, /* 3, Breakpoint */ 132 X86_TRAP_OF, /* 4, Overflow */ 133 X86_TRAP_BR, /* 5, Bound Range Exceeded */ 134 X86_TRAP_UD, /* 6, Invalid Opcode */ 135 X86_TRAP_NM, /* 7, Device Not Available */ 136 X86_TRAP_DF, /* 8, Double Fault */ 137 X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */ 138 X86_TRAP_TS, /* 10, Invalid TSS */ 139 X86_TRAP_NP, /* 11, Segment Not Present */ 140 X86_TRAP_SS, /* 12, Stack Segment Fault */ 141 X86_TRAP_GP, /* 13, General Protection Fault */ 142 X86_TRAP_PF, /* 14, Page Fault */ 143 X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */ 144 X86_TRAP_MF, /* 16, x87 Floating-Point Exception */ 145 X86_TRAP_AC, /* 17, Alignment Check */ 146 X86_TRAP_MC, /* 18, Machine Check */ 147 X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */ 148 X86_TRAP_IRET = 32, /* 32, IRET Exception */ 149 }; 150 151 #endif /* _ASM_X86_TRAPS_H */ 152