[linux-2.6-block.git] / arch / x86 / include / asm / traps.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TRAPS_H
#define _ASM_X86_TRAPS_H

#include <linux/context_tracking_state.h>
#include <linux/kprobes.h>

#include <asm/debugreg.h>
#include <asm/siginfo.h>			/* TRAP_TRACE, ... */

#define dotraplinkage __visible

asmlinkage void divide_error(void);
asmlinkage void debug(void);
asmlinkage void nmi(void);
asmlinkage void int3(void);
asmlinkage void overflow(void);
asmlinkage void bounds(void);
asmlinkage void invalid_op(void);
asmlinkage void device_not_available(void);
#ifdef CONFIG_X86_64
asmlinkage void double_fault(void);
#endif
asmlinkage void coprocessor_segment_overrun(void);
asmlinkage void invalid_TSS(void);
asmlinkage void segment_not_present(void);
asmlinkage void stack_segment(void);
asmlinkage void general_protection(void);
asmlinkage void page_fault(void);
asmlinkage void async_page_fault(void);
asmlinkage void spurious_interrupt_bug(void);
asmlinkage void coprocessor_error(void);
asmlinkage void alignment_check(void);
#ifdef CONFIG_X86_MCE
asmlinkage void machine_check(void);
#endif /* CONFIG_X86_MCE */
asmlinkage void simd_coprocessor_error(void);

#if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
asmlinkage void xen_divide_error(void);
asmlinkage void xen_xendebug(void);
asmlinkage void xen_xenint3(void);
asmlinkage void xen_nmi(void);
asmlinkage void xen_overflow(void);
asmlinkage void xen_bounds(void);
asmlinkage void xen_invalid_op(void);
asmlinkage void xen_device_not_available(void);
asmlinkage void xen_double_fault(void);
asmlinkage void xen_coprocessor_segment_overrun(void);
asmlinkage void xen_invalid_TSS(void);
asmlinkage void xen_segment_not_present(void);
asmlinkage void xen_stack_segment(void);
asmlinkage void xen_general_protection(void);
asmlinkage void xen_page_fault(void);
asmlinkage void xen_spurious_interrupt_bug(void);
asmlinkage void xen_coprocessor_error(void);
asmlinkage void xen_alignment_check(void);
#ifdef CONFIG_X86_MCE
asmlinkage void xen_machine_check(void);
#endif /* CONFIG_X86_MCE */
asmlinkage void xen_simd_coprocessor_error(void);
#endif

dotraplinkage void do_divide_error(struct pt_regs *, long);
dotraplinkage void do_debug(struct pt_regs *, long);
dotraplinkage void do_nmi(struct pt_regs *, long);
dotraplinkage void do_int3(struct pt_regs *, long);
dotraplinkage void do_overflow(struct pt_regs *, long);
dotraplinkage void do_bounds(struct pt_regs *, long);
dotraplinkage void do_invalid_op(struct pt_regs *, long);
dotraplinkage void do_device_not_available(struct pt_regs *, long);
dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
dotraplinkage void do_segment_not_present(struct pt_regs *, long);
dotraplinkage void do_stack_segment(struct pt_regs *, long);
#ifdef CONFIG_X86_64
dotraplinkage void do_double_fault(struct pt_regs *, long);
asmlinkage struct pt_regs *sync_regs(struct pt_regs *);
#endif
dotraplinkage void do_general_protection(struct pt_regs *, long);
dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
dotraplinkage void do_alignment_check(struct pt_regs *, long);
#ifdef CONFIG_X86_MCE
dotraplinkage void do_machine_check(struct pt_regs *, long);
#endif
dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
#ifdef CONFIG_X86_32
dotraplinkage void do_iret_error(struct pt_regs *, long);
#endif

static inline int get_si_code(unsigned long condition)
{
	if (condition & DR_STEP)
		return TRAP_TRACE;
	else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
		return TRAP_HWBKPT;
	else
		return TRAP_BRKPT;
}

extern int panic_on_unrecovered_nmi;

void math_emulate(struct math_emu_info *);
#ifndef CONFIG_X86_32
asmlinkage void smp_thermal_interrupt(void);
asmlinkage void smp_threshold_interrupt(void);
asmlinkage void smp_deferred_error_interrupt(void);
#endif

extern void ist_enter(struct pt_regs *regs);
extern void ist_exit(struct pt_regs *regs);
extern void ist_begin_non_atomic(struct pt_regs *regs);
extern void ist_end_non_atomic(void);

#ifdef CONFIG_VMAP_STACK
void __noreturn handle_stack_overflow(const char *message,
				      struct pt_regs *regs,
				      unsigned long fault_address);
#endif

/* Interrupts/Exceptions */
enum {
	X86_TRAP_DE = 0,	/*  0, Divide-by-zero */
	X86_TRAP_DB,		/*  1, Debug */
	X86_TRAP_NMI,		/*  2, Non-maskable Interrupt */
	X86_TRAP_BP,		/*  3, Breakpoint */
	X86_TRAP_OF,		/*  4, Overflow */
	X86_TRAP_BR,		/*  5, Bound Range Exceeded */
	X86_TRAP_UD,		/*  6, Invalid Opcode */
	X86_TRAP_NM,		/*  7, Device Not Available */
	X86_TRAP_DF,		/*  8, Double Fault */
	X86_TRAP_OLD_MF,	/*  9, Coprocessor Segment Overrun */
	X86_TRAP_TS,		/* 10, Invalid TSS */
	X86_TRAP_NP,		/* 11, Segment Not Present */
	X86_TRAP_SS,		/* 12, Stack Segment Fault */
	X86_TRAP_GP,		/* 13, General Protection Fault */
	X86_TRAP_PF,		/* 14, Page Fault */
	X86_TRAP_SPURIOUS,	/* 15, Spurious Interrupt */
	X86_TRAP_MF,		/* 16, x87 Floating-Point Exception */
	X86_TRAP_AC,		/* 17, Alignment Check */
	X86_TRAP_MC,		/* 18, Machine Check */
	X86_TRAP_XF,		/* 19, SIMD Floating-Point Exception */
	X86_TRAP_IRET = 32,	/* 32, IRET Exception */
};

#endif /* _ASM_X86_TRAPS_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1965aae3 PA	2	#ifndef _ASM_X86_TRAPS_H
1965aae3 PA	3	#define _ASM_X86_TRAPS_H
6ac8d51f	4
95927475	5	#include <linux/context_tracking_state.h>
5cec93c2 AL	6	#include <linux/kprobes.h>
5cec93c2 AL	7
e8d3f455	8	#include <asm/debugreg.h>
a2bcd473	9	#include <asm/siginfo.h> /* TRAP_TRACE, ... */
e8d3f455	10
9e1a431d	11	#define dotraplinkage __visible
e407d620	12
6ac8d51f JS	13	asmlinkage void divide_error(void);
	14	asmlinkage void debug(void);
	15	asmlinkage void nmi(void);
	16	asmlinkage void int3(void);
	17	asmlinkage void overflow(void);
	18	asmlinkage void bounds(void);
	19	asmlinkage void invalid_op(void);
	20	asmlinkage void device_not_available(void);
e407d620 AH	21	#ifdef CONFIG_X86_64
	22	asmlinkage void double_fault(void);
	23	#endif
6ac8d51f JS	24	asmlinkage void coprocessor_segment_overrun(void);
	25	asmlinkage void invalid_TSS(void);
	26	asmlinkage void segment_not_present(void);
	27	asmlinkage void stack_segment(void);
	28	asmlinkage void general_protection(void);
	29	asmlinkage void page_fault(void);
631bc487	30	asmlinkage void async_page_fault(void);
e407d620	31	asmlinkage void spurious_interrupt_bug(void);
6ac8d51f	32	asmlinkage void coprocessor_error(void);
6ac8d51f	33	asmlinkage void alignment_check(void);
6ac8d51f JS	34	#ifdef CONFIG_X86_MCE
	35	asmlinkage void machine_check(void);
	36	#endif /* CONFIG_X86_MCE */
e407d620	37	asmlinkage void simd_coprocessor_error(void);
6ac8d51f	38
5878d5d6 JG	39	#if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
	40	asmlinkage void xen_divide_error(void);
	41	asmlinkage void xen_xendebug(void);
	42	asmlinkage void xen_xenint3(void);
	43	asmlinkage void xen_nmi(void);
	44	asmlinkage void xen_overflow(void);
	45	asmlinkage void xen_bounds(void);
	46	asmlinkage void xen_invalid_op(void);
	47	asmlinkage void xen_device_not_available(void);
	48	asmlinkage void xen_double_fault(void);
	49	asmlinkage void xen_coprocessor_segment_overrun(void);
	50	asmlinkage void xen_invalid_TSS(void);
	51	asmlinkage void xen_segment_not_present(void);
	52	asmlinkage void xen_stack_segment(void);
	53	asmlinkage void xen_general_protection(void);
	54	asmlinkage void xen_page_fault(void);
	55	asmlinkage void xen_spurious_interrupt_bug(void);
	56	asmlinkage void xen_coprocessor_error(void);
	57	asmlinkage void xen_alignment_check(void);
	58	#ifdef CONFIG_X86_MCE
	59	asmlinkage void xen_machine_check(void);
	60	#endif /* CONFIG_X86_MCE */
	61	asmlinkage void xen_simd_coprocessor_error(void);
	62	#endif
	63
e407d620 AH	64	dotraplinkage void do_divide_error(struct pt_regs *, long);
	65	dotraplinkage void do_debug(struct pt_regs *, long);
	66	dotraplinkage void do_nmi(struct pt_regs *, long);
	67	dotraplinkage void do_int3(struct pt_regs *, long);
	68	dotraplinkage void do_overflow(struct pt_regs *, long);
	69	dotraplinkage void do_bounds(struct pt_regs *, long);
	70	dotraplinkage void do_invalid_op(struct pt_regs *, long);
aa78bcfa	71	dotraplinkage void do_device_not_available(struct pt_regs *, long);
e407d620 AH	72	dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
	73	dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
	74	dotraplinkage void do_segment_not_present(struct pt_regs *, long);
	75	dotraplinkage void do_stack_segment(struct pt_regs *, long);
d1769d54 JS	76	#ifdef CONFIG_X86_64
d1769d54 JS	77	dotraplinkage void do_double_fault(struct pt_regs *, long);
9326638c	78	asmlinkage struct pt_regs sync_regs(struct pt_regs );
d1769d54	79	#endif
e407d620 AH	80	dotraplinkage void do_general_protection(struct pt_regs *, long);
	81	dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
	82	dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
	83	dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
	84	dotraplinkage void do_alignment_check(struct pt_regs *, long);
	85	#ifdef CONFIG_X86_MCE
	86	dotraplinkage void do_machine_check(struct pt_regs *, long);
	87	#endif
	88	dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
	89	#ifdef CONFIG_X86_32
	90	dotraplinkage void do_iret_error(struct pt_regs *, long);
	91	#endif
6ac8d51f	92
da654b74 SD	93	static 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
6ac8d51f	103	extern int panic_on_unrecovered_nmi;
6ac8d51f	104
d315760f	105	void math_emulate(struct math_emu_info *);
fde0312d	106	#ifndef CONFIG_X86_32
d1769d54	107	asmlinkage void smp_thermal_interrupt(void);
24fd78a8 AG	108	asmlinkage void smp_threshold_interrupt(void);
24fd78a8 AG	109	asmlinkage void smp_deferred_error_interrupt(void);
e407d620	110	#endif
6ac8d51f	111
8c84014f AL	112	extern void ist_enter(struct pt_regs *regs);
8c84014f AL	113	extern void ist_exit(struct pt_regs *regs);
bced35b6 AL	114	extern void ist_begin_non_atomic(struct pt_regs *regs);
bced35b6 AL	115	extern void ist_end_non_atomic(void);
95927475	116
6271cfdf AL	117	#ifdef CONFIG_VMAP_STACK
	118	void __noreturn handle_stack_overflow(const char *message,
	119	struct pt_regs *regs,
	120	unsigned long fault_address);
	121	#endif
	122
c9408265 KC	123	/* Interrupts/Exceptions */
	124	enum {
	125	X86_TRAP_DE = 0, /* 0, Divide-by-zero */
	126	X86_TRAP_DB, /* 1, Debug */
	127	X86_TRAP_NMI, /* 2, Non-maskable Interrupt */
	128	X86_TRAP_BP, /* 3, Breakpoint */
	129	X86_TRAP_OF, /* 4, Overflow */
	130	X86_TRAP_BR, /* 5, Bound Range Exceeded */
	131	X86_TRAP_UD, /* 6, Invalid Opcode */
	132	X86_TRAP_NM, /* 7, Device Not Available */
	133	X86_TRAP_DF, /* 8, Double Fault */
	134	X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */
	135	X86_TRAP_TS, /* 10, Invalid TSS */
	136	X86_TRAP_NP, /* 11, Segment Not Present */
	137	X86_TRAP_SS, /* 12, Stack Segment Fault */
	138	X86_TRAP_GP, /* 13, General Protection Fault */
	139	X86_TRAP_PF, /* 14, Page Fault */
	140	X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */
	141	X86_TRAP_MF, /* 16, x87 Floating-Point Exception */
	142	X86_TRAP_AC, /* 17, Alignment Check */
	143	X86_TRAP_MC, /* 18, Machine Check */
	144	X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */
	145	X86_TRAP_IRET = 32, /* 32, IRET Exception */
	146	};
	147
1965aae3	148	#endif /* _ASM_X86_TRAPS_H */