1
2#ifndef _ASM_X86_TRAPS_H
3#define _ASM_X86_TRAPS_H
4
5#include <linux/context_tracking_state.h>
6#include <linux/kprobes.h>
7
8#include <asm/debugreg.h>
9#include <asm/siginfo.h>
10
11#define dotraplinkage __visible
12
13asmlinkage void divide_error(void);
14asmlinkage void debug(void);
15asmlinkage void nmi(void);
16asmlinkage void int3(void);
17asmlinkage void overflow(void);
18asmlinkage void bounds(void);
19asmlinkage void invalid_op(void);
20asmlinkage void device_not_available(void);
21#ifdef CONFIG_X86_64
22asmlinkage void double_fault(void);
23#endif
24asmlinkage void coprocessor_segment_overrun(void);
25asmlinkage void invalid_TSS(void);
26asmlinkage void segment_not_present(void);
27asmlinkage void stack_segment(void);
28asmlinkage void general_protection(void);
29asmlinkage void page_fault(void);
30asmlinkage void async_page_fault(void);
31asmlinkage void spurious_interrupt_bug(void);
32asmlinkage void coprocessor_error(void);
33asmlinkage void alignment_check(void);
34#ifdef CONFIG_X86_MCE
35asmlinkage void machine_check(void);
36#endif
37asmlinkage void simd_coprocessor_error(void);
38
39#if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
40asmlinkage void xen_divide_error(void);
41asmlinkage void xen_xennmi(void);
42asmlinkage void xen_xendebug(void);
43asmlinkage void xen_xenint3(void);
44asmlinkage void xen_overflow(void);
45asmlinkage void xen_bounds(void);
46asmlinkage void xen_invalid_op(void);
47asmlinkage void xen_device_not_available(void);
48asmlinkage void xen_double_fault(void);
49asmlinkage void xen_coprocessor_segment_overrun(void);
50asmlinkage void xen_invalid_TSS(void);
51asmlinkage void xen_segment_not_present(void);
52asmlinkage void xen_stack_segment(void);
53asmlinkage void xen_general_protection(void);
54asmlinkage void xen_page_fault(void);
55asmlinkage void xen_spurious_interrupt_bug(void);
56asmlinkage void xen_coprocessor_error(void);
57asmlinkage void xen_alignment_check(void);
58#ifdef CONFIG_X86_MCE
59asmlinkage void xen_machine_check(void);
60#endif
61asmlinkage void xen_simd_coprocessor_error(void);
62#endif
63
64dotraplinkage void do_divide_error(struct pt_regs *, long);
65dotraplinkage void do_debug(struct pt_regs *, long);
66dotraplinkage void do_nmi(struct pt_regs *, long);
67dotraplinkage void do_int3(struct pt_regs *, long);
68dotraplinkage void do_overflow(struct pt_regs *, long);
69dotraplinkage void do_bounds(struct pt_regs *, long);
70dotraplinkage void do_invalid_op(struct pt_regs *, long);
71dotraplinkage void do_device_not_available(struct pt_regs *, long);
72dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
73dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
74dotraplinkage void do_segment_not_present(struct pt_regs *, long);
75dotraplinkage void do_stack_segment(struct pt_regs *, long);
76#ifdef CONFIG_X86_64
77dotraplinkage void do_double_fault(struct pt_regs *, long);
78#endif
79dotraplinkage void do_general_protection(struct pt_regs *, long);
80dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
81dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
82dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
83dotraplinkage void do_alignment_check(struct pt_regs *, long);
84#ifdef CONFIG_X86_MCE
85dotraplinkage void do_machine_check(struct pt_regs *, long);
86#endif
87dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
88#ifdef CONFIG_X86_32
89dotraplinkage void do_iret_error(struct pt_regs *, long);
90#endif
91dotraplinkage void do_mce(struct pt_regs *, long);
92
93static inline int get_si_code(unsigned long condition)
94{
95 if (condition & DR_STEP)
96 return TRAP_TRACE;
97 else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
98 return TRAP_HWBKPT;
99 else
100 return TRAP_BRKPT;
101}
102
103extern int panic_on_unrecovered_nmi;
104
105void math_emulate(struct math_emu_info *);
106#ifndef CONFIG_X86_32
107asmlinkage void smp_thermal_interrupt(void);
108asmlinkage void smp_threshold_interrupt(void);
109asmlinkage void smp_deferred_error_interrupt(void);
110#endif
111
112extern void ist_enter(struct pt_regs *regs);
113extern void ist_exit(struct pt_regs *regs);
114extern void ist_begin_non_atomic(struct pt_regs *regs);
115extern void ist_end_non_atomic(void);
116
117#ifdef CONFIG_VMAP_STACK
118void __noreturn handle_stack_overflow(const char *message,
119 struct pt_regs *regs,
120 unsigned long fault_address);
121#endif
122
123
124enum {
125 X86_TRAP_DE = 0,
126 X86_TRAP_DB,
127 X86_TRAP_NMI,
128 X86_TRAP_BP,
129 X86_TRAP_OF,
130 X86_TRAP_BR,
131 X86_TRAP_UD,
132 X86_TRAP_NM,
133 X86_TRAP_DF,
134 X86_TRAP_OLD_MF,
135 X86_TRAP_TS,
136 X86_TRAP_NP,
137 X86_TRAP_SS,
138 X86_TRAP_GP,
139 X86_TRAP_PF,
140 X86_TRAP_SPURIOUS,
141 X86_TRAP_MF,
142 X86_TRAP_AC,
143 X86_TRAP_MC,
144 X86_TRAP_XF,
145 X86_TRAP_IRET = 32,
146};
147
148
149
150
151
152
153
154
155
156
157
158enum x86_pf_error_code {
159 X86_PF_PROT = 1 << 0,
160 X86_PF_WRITE = 1 << 1,
161 X86_PF_USER = 1 << 2,
162 X86_PF_RSVD = 1 << 3,
163 X86_PF_INSTR = 1 << 4,
164 X86_PF_PK = 1 << 5,
165};
166#endif
167