LXR linux/arch/x86/include/asm/traps.h

   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 bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s);
  17void __init trap_init(void);
  18asmlinkage __visible noinstr struct pt_regs *vc_switch_off_ist(struct pt_regs *eregs);
  19#endif
  20
  21#ifdef CONFIG_X86_F00F_BUG
  22/* For handling the FOOF bug */
  23void handle_invalid_op(struct pt_regs *regs);
  24#endif
  25
  26static inline int get_si_code(unsigned long condition)
  27{
  28        if (condition & DR_STEP)
  29                return TRAP_TRACE;
  30        else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
  31                return TRAP_HWBKPT;
  32        else
  33                return TRAP_BRKPT;
  34}
  35
  36extern int panic_on_unrecovered_nmi;
  37
  38void math_emulate(struct math_emu_info *);
  39
  40bool fault_in_kernel_space(unsigned long address);
  41
  42#ifdef CONFIG_VMAP_STACK
  43void __noreturn handle_stack_overflow(const char *message,
  44                                      struct pt_regs *regs,
  45                                      unsigned long fault_address);
  46#endif
  47
  48#endif /* _ASM_X86_TRAPS_H */
  49