From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/x86/include/asm/traps.h | 63 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 arch/x86/include/asm/traps.h (limited to 'arch/x86/include/asm/traps.h') diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h new file mode 100644 index 0000000000..b1c9cea6ba --- /dev/null +++ b/arch/x86/include/asm/traps.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_TRAPS_H +#define _ASM_X86_TRAPS_H + +#include +#include + +#include +#include +#include /* TRAP_TRACE, ... */ +#include + +#ifdef CONFIG_X86_64 +asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs); +asmlinkage __visible notrace +struct pt_regs *fixup_bad_iret(struct pt_regs *bad_regs); +void __init trap_init(void); +asmlinkage __visible noinstr struct pt_regs *vc_switch_off_ist(struct pt_regs *eregs); +#endif + +extern int ibt_selftest(void); +extern int ibt_selftest_noendbr(void); + +#ifdef CONFIG_X86_F00F_BUG +/* For handling the FOOF bug */ +void handle_invalid_op(struct pt_regs *regs); +#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 *); + +bool fault_in_kernel_space(unsigned long address); + +#ifdef CONFIG_VMAP_STACK +void __noreturn handle_stack_overflow(struct pt_regs *regs, + unsigned long fault_address, + struct stack_info *info); +#endif + +static inline void cond_local_irq_enable(struct pt_regs *regs) +{ + if (regs->flags & X86_EFLAGS_IF) + local_irq_enable(); +} + +static inline void cond_local_irq_disable(struct pt_regs *regs) +{ + if (regs->flags & X86_EFLAGS_IF) + local_irq_disable(); +} + +#endif /* _ASM_X86_TRAPS_H */ -- cgit v1.2.3