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 12asmlinkage void divide_error(void); 13asmlinkage void debug(void); 14asmlinkage void nmi(void); 15asmlinkage void int3(void); 16asmlinkage void xen_debug(void); 17asmlinkage void xen_int3(void); 18asmlinkage void xen_stack_segment(void); 19asmlinkage void overflow(void); 20asmlinkage void bounds(void); 21asmlinkage void invalid_op(void); 22asmlinkage void device_not_available(void); 23#ifdef CONFIG_X86_64 24asmlinkage void double_fault(void); 25#endif 26asmlinkage void coprocessor_segment_overrun(void); 27asmlinkage void invalid_TSS(void); 28asmlinkage void segment_not_present(void); 29asmlinkage void stack_segment(void); 30asmlinkage void general_protection(void); 31asmlinkage void page_fault(void); 32asmlinkage void async_page_fault(void); 33asmlinkage void spurious_interrupt_bug(void); 34asmlinkage void coprocessor_error(void); 35asmlinkage void alignment_check(void); 36#ifdef CONFIG_X86_MCE 37asmlinkage void machine_check(void); 38#endif /* CONFIG_X86_MCE */ 39asmlinkage void simd_coprocessor_error(void); 40 41#ifdef CONFIG_TRACING 42asmlinkage 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 59dotraplinkage void do_divide_error(struct pt_regs *, long); 60dotraplinkage void do_debug(struct pt_regs *, long); 61dotraplinkage void do_nmi(struct pt_regs *, long); 62dotraplinkage void do_int3(struct pt_regs *, long); 63dotraplinkage void do_overflow(struct pt_regs *, long); 64dotraplinkage void do_bounds(struct pt_regs *, long); 65dotraplinkage void do_invalid_op(struct pt_regs *, long); 66dotraplinkage void do_device_not_available(struct pt_regs *, long); 67dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long); 68dotraplinkage void do_invalid_TSS(struct pt_regs *, long); 69dotraplinkage void do_segment_not_present(struct pt_regs *, long); 70dotraplinkage void do_stack_segment(struct pt_regs *, long); 71#ifdef CONFIG_X86_64 72dotraplinkage void do_double_fault(struct pt_regs *, long); 73asmlinkage struct pt_regs *sync_regs(struct pt_regs *); 74#endif 75dotraplinkage void do_general_protection(struct pt_regs *, long); 76dotraplinkage void do_page_fault(struct pt_regs *, unsigned long); 77#ifdef CONFIG_TRACING 78dotraplinkage void trace_do_page_fault(struct pt_regs *, unsigned long); 79#else 80static inline void trace_do_page_fault(struct pt_regs *regs, unsigned long error) 81{ 82 do_page_fault(regs, error); 83} 84#endif 85dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long); 86dotraplinkage void do_coprocessor_error(struct pt_regs *, long); 87dotraplinkage void do_alignment_check(struct pt_regs *, long); 88#ifdef CONFIG_X86_MCE 89dotraplinkage void do_machine_check(struct pt_regs *, long); 90#endif 91dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long); 92#ifdef CONFIG_X86_32 93dotraplinkage void do_iret_error(struct pt_regs *, long); 94#endif 95 96static 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 106extern int panic_on_unrecovered_nmi; 107 108void math_emulate(struct math_emu_info *); 109#ifndef CONFIG_X86_32 110asmlinkage void smp_thermal_interrupt(void); 111asmlinkage void mce_threshold_interrupt(void); 112#endif 113 114extern enum ctx_state ist_enter(struct pt_regs *regs); 115extern void ist_exit(struct pt_regs *regs, enum ctx_state prev_state); 116extern void ist_begin_non_atomic(struct pt_regs *regs); 117extern void ist_end_non_atomic(void); 118 119/* Interrupts/Exceptions */ 120enum { 121 X86_TRAP_DE = 0, /* 0, Divide-by-zero */ 122 X86_TRAP_DB, /* 1, Debug */ 123 X86_TRAP_NMI, /* 2, Non-maskable Interrupt */ 124 X86_TRAP_BP, /* 3, Breakpoint */ 125 X86_TRAP_OF, /* 4, Overflow */ 126 X86_TRAP_BR, /* 5, Bound Range Exceeded */ 127 X86_TRAP_UD, /* 6, Invalid Opcode */ 128 X86_TRAP_NM, /* 7, Device Not Available */ 129 X86_TRAP_DF, /* 8, Double Fault */ 130 X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */ 131 X86_TRAP_TS, /* 10, Invalid TSS */ 132 X86_TRAP_NP, /* 11, Segment Not Present */ 133 X86_TRAP_SS, /* 12, Stack Segment Fault */ 134 X86_TRAP_GP, /* 13, General Protection Fault */ 135 X86_TRAP_PF, /* 14, Page Fault */ 136 X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */ 137 X86_TRAP_MF, /* 16, x87 Floating-Point Exception */ 138 X86_TRAP_AC, /* 17, Alignment Check */ 139 X86_TRAP_MC, /* 18, Machine Check */ 140 X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */ 141 X86_TRAP_IRET = 32, /* 32, IRET Exception */ 142}; 143 144#endif /* _ASM_X86_TRAPS_H */ 145