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
trace_do_page_fault(struct pt_regs * regs,unsigned long error)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 dotraplinkage void do_mce(struct pt_regs *, long);
96
get_si_code(unsigned long condition)97 static inline int get_si_code(unsigned long condition)
98 {
99 if (condition & DR_STEP)
100 return TRAP_TRACE;
101 else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
102 return TRAP_HWBKPT;
103 else
104 return TRAP_BRKPT;
105 }
106
107 extern int panic_on_unrecovered_nmi;
108
109 void math_emulate(struct math_emu_info *);
110 #ifndef CONFIG_X86_32
111 asmlinkage void smp_thermal_interrupt(void);
112 asmlinkage void smp_threshold_interrupt(void);
113 asmlinkage void smp_deferred_error_interrupt(void);
114 #endif
115
116 extern void ist_enter(struct pt_regs *regs);
117 extern void ist_exit(struct pt_regs *regs);
118 extern void ist_begin_non_atomic(struct pt_regs *regs);
119 extern void ist_end_non_atomic(void);
120
121 /* Interrupts/Exceptions */
122 enum {
123 X86_TRAP_DE = 0, /* 0, Divide-by-zero */
124 X86_TRAP_DB, /* 1, Debug */
125 X86_TRAP_NMI, /* 2, Non-maskable Interrupt */
126 X86_TRAP_BP, /* 3, Breakpoint */
127 X86_TRAP_OF, /* 4, Overflow */
128 X86_TRAP_BR, /* 5, Bound Range Exceeded */
129 X86_TRAP_UD, /* 6, Invalid Opcode */
130 X86_TRAP_NM, /* 7, Device Not Available */
131 X86_TRAP_DF, /* 8, Double Fault */
132 X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */
133 X86_TRAP_TS, /* 10, Invalid TSS */
134 X86_TRAP_NP, /* 11, Segment Not Present */
135 X86_TRAP_SS, /* 12, Stack Segment Fault */
136 X86_TRAP_GP, /* 13, General Protection Fault */
137 X86_TRAP_PF, /* 14, Page Fault */
138 X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */
139 X86_TRAP_MF, /* 16, x87 Floating-Point Exception */
140 X86_TRAP_AC, /* 17, Alignment Check */
141 X86_TRAP_MC, /* 18, Machine Check */
142 X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */
143 X86_TRAP_IRET = 32, /* 32, IRET Exception */
144 };
145
146 #endif /* _ASM_X86_TRAPS_H */
147