1/* SPDX-License-Identifier: GPL-2.0 */
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/idtentry.h>
10#include <asm/siginfo.h>			/* TRAP_TRACE, ... */
11#include <asm/trap_pf.h>
12
13#ifdef CONFIG_X86_64
14asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
15asmlinkage __visible notrace
16struct pt_regs *fixup_bad_iret(struct pt_regs *bad_regs);
17asmlinkage __visible noinstr struct pt_regs *vc_switch_off_ist(struct pt_regs *eregs);
18#endif
19
20extern int ibt_selftest(void);
21extern int ibt_selftest_noendbr(void);
22
23#ifdef CONFIG_X86_F00F_BUG
24/* For handling the FOOF bug */
25void handle_invalid_op(struct pt_regs *regs);
26#endif
27
28static inline int get_si_code(unsigned long condition)
29{
30	if (condition & DR_STEP)
31		return TRAP_TRACE;
32	else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
33		return TRAP_HWBKPT;
34	else
35		return TRAP_BRKPT;
36}
37
38extern int panic_on_unrecovered_nmi;
39
40void math_emulate(struct math_emu_info *);
41
42bool fault_in_kernel_space(unsigned long address);
43
44#ifdef CONFIG_VMAP_STACK
45void __noreturn handle_stack_overflow(struct pt_regs *regs,
46				      unsigned long fault_address,
47				      struct stack_info *info);
48#endif
49
50static inline void cond_local_irq_enable(struct pt_regs *regs)
51{
52	if (regs->flags & X86_EFLAGS_IF)
53		local_irq_enable();
54}
55
56static inline void cond_local_irq_disable(struct pt_regs *regs)
57{
58	if (regs->flags & X86_EFLAGS_IF)
59		local_irq_disable();
60}
61
62#endif /* _ASM_X86_TRAPS_H */
63