1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 21965aae3SH. Peter Anvin #ifndef _ASM_X86_TRAPS_H 31965aae3SH. Peter Anvin #define _ASM_X86_TRAPS_H 4bb898558SAl Viro 595927475SAndy Lutomirski #include <linux/context_tracking_state.h> 65cec93c2SAndy Lutomirski #include <linux/kprobes.h> 75cec93c2SAndy Lutomirski 8bb898558SAl Viro #include <asm/debugreg.h> 9a2bcd473SIngo Molnar #include <asm/siginfo.h> /* TRAP_TRACE, ... */ 10bb898558SAl Viro 119e1a431dSAndi Kleen #define dotraplinkage __visible 12bb898558SAl Viro 13bb898558SAl Viro asmlinkage void divide_error(void); 14bb898558SAl Viro asmlinkage void debug(void); 15bb898558SAl Viro asmlinkage void nmi(void); 16bb898558SAl Viro asmlinkage void int3(void); 17bb898558SAl Viro asmlinkage void overflow(void); 18bb898558SAl Viro asmlinkage void bounds(void); 19bb898558SAl Viro asmlinkage void invalid_op(void); 20bb898558SAl Viro asmlinkage void device_not_available(void); 21bb898558SAl Viro #ifdef CONFIG_X86_64 22bb898558SAl Viro asmlinkage void double_fault(void); 23bb898558SAl Viro #endif 24bb898558SAl Viro asmlinkage void coprocessor_segment_overrun(void); 25bb898558SAl Viro asmlinkage void invalid_TSS(void); 26bb898558SAl Viro asmlinkage void segment_not_present(void); 27bb898558SAl Viro asmlinkage void stack_segment(void); 28bb898558SAl Viro asmlinkage void general_protection(void); 29bb898558SAl Viro asmlinkage void page_fault(void); 30631bc487SGleb Natapov asmlinkage void async_page_fault(void); 31bb898558SAl Viro asmlinkage void spurious_interrupt_bug(void); 32bb898558SAl Viro asmlinkage void coprocessor_error(void); 33bb898558SAl Viro asmlinkage void alignment_check(void); 34bb898558SAl Viro #ifdef CONFIG_X86_MCE 35bb898558SAl Viro asmlinkage void machine_check(void); 36bb898558SAl Viro #endif /* CONFIG_X86_MCE */ 37bb898558SAl Viro asmlinkage void simd_coprocessor_error(void); 38bb898558SAl Viro 395878d5d6SJuergen Gross #if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV) 405878d5d6SJuergen Gross asmlinkage void xen_divide_error(void); 415878d5d6SJuergen Gross asmlinkage void xen_xendebug(void); 425878d5d6SJuergen Gross asmlinkage void xen_xenint3(void); 435878d5d6SJuergen Gross asmlinkage void xen_nmi(void); 445878d5d6SJuergen Gross asmlinkage void xen_overflow(void); 455878d5d6SJuergen Gross asmlinkage void xen_bounds(void); 465878d5d6SJuergen Gross asmlinkage void xen_invalid_op(void); 475878d5d6SJuergen Gross asmlinkage void xen_device_not_available(void); 485878d5d6SJuergen Gross asmlinkage void xen_double_fault(void); 495878d5d6SJuergen Gross asmlinkage void xen_coprocessor_segment_overrun(void); 505878d5d6SJuergen Gross asmlinkage void xen_invalid_TSS(void); 515878d5d6SJuergen Gross asmlinkage void xen_segment_not_present(void); 525878d5d6SJuergen Gross asmlinkage void xen_stack_segment(void); 535878d5d6SJuergen Gross asmlinkage void xen_general_protection(void); 545878d5d6SJuergen Gross asmlinkage void xen_page_fault(void); 555878d5d6SJuergen Gross asmlinkage void xen_spurious_interrupt_bug(void); 565878d5d6SJuergen Gross asmlinkage void xen_coprocessor_error(void); 575878d5d6SJuergen Gross asmlinkage void xen_alignment_check(void); 585878d5d6SJuergen Gross #ifdef CONFIG_X86_MCE 595878d5d6SJuergen Gross asmlinkage void xen_machine_check(void); 605878d5d6SJuergen Gross #endif /* CONFIG_X86_MCE */ 615878d5d6SJuergen Gross asmlinkage void xen_simd_coprocessor_error(void); 625878d5d6SJuergen Gross #endif 635878d5d6SJuergen Gross 64bb898558SAl Viro dotraplinkage void do_divide_error(struct pt_regs *, long); 65bb898558SAl Viro dotraplinkage void do_debug(struct pt_regs *, long); 66bb898558SAl Viro dotraplinkage void do_nmi(struct pt_regs *, long); 67bb898558SAl Viro dotraplinkage void do_int3(struct pt_regs *, long); 68bb898558SAl Viro dotraplinkage void do_overflow(struct pt_regs *, long); 69bb898558SAl Viro dotraplinkage void do_bounds(struct pt_regs *, long); 70bb898558SAl Viro dotraplinkage void do_invalid_op(struct pt_regs *, long); 71aa78bcfaSBrian Gerst dotraplinkage void do_device_not_available(struct pt_regs *, long); 72bb898558SAl Viro dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long); 73bb898558SAl Viro dotraplinkage void do_invalid_TSS(struct pt_regs *, long); 74bb898558SAl Viro dotraplinkage void do_segment_not_present(struct pt_regs *, long); 75bb898558SAl Viro dotraplinkage void do_stack_segment(struct pt_regs *, long); 76d1769d54SJaswinder Singh #ifdef CONFIG_X86_64 77d1769d54SJaswinder Singh dotraplinkage void do_double_fault(struct pt_regs *, long); 789326638cSMasami Hiramatsu asmlinkage struct pt_regs *sync_regs(struct pt_regs *); 79d1769d54SJaswinder Singh #endif 80bb898558SAl Viro dotraplinkage void do_general_protection(struct pt_regs *, long); 81bb898558SAl Viro dotraplinkage void do_page_fault(struct pt_regs *, unsigned long); 82bb898558SAl Viro dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long); 83bb898558SAl Viro dotraplinkage void do_coprocessor_error(struct pt_regs *, long); 84bb898558SAl Viro dotraplinkage void do_alignment_check(struct pt_regs *, long); 85bb898558SAl Viro #ifdef CONFIG_X86_MCE 86bb898558SAl Viro dotraplinkage void do_machine_check(struct pt_regs *, long); 87bb898558SAl Viro #endif 88bb898558SAl Viro dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long); 89bb898558SAl Viro #ifdef CONFIG_X86_32 90bb898558SAl Viro dotraplinkage void do_iret_error(struct pt_regs *, long); 91bb898558SAl Viro #endif 92bb898558SAl Viro 93bb898558SAl Viro static inline int get_si_code(unsigned long condition) 94bb898558SAl Viro { 95bb898558SAl Viro if (condition & DR_STEP) 96bb898558SAl Viro return TRAP_TRACE; 97bb898558SAl Viro else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)) 98bb898558SAl Viro return TRAP_HWBKPT; 99bb898558SAl Viro else 100bb898558SAl Viro return TRAP_BRKPT; 101bb898558SAl Viro } 102bb898558SAl Viro 103bb898558SAl Viro extern int panic_on_unrecovered_nmi; 104bb898558SAl Viro 105d315760fSTejun Heo void math_emulate(struct math_emu_info *); 106fde0312dSAkinobu Mita #ifndef CONFIG_X86_32 107d1769d54SJaswinder Singh asmlinkage void smp_thermal_interrupt(void); 10824fd78a8SAravind Gopalakrishnan asmlinkage void smp_threshold_interrupt(void); 10924fd78a8SAravind Gopalakrishnan asmlinkage void smp_deferred_error_interrupt(void); 110bb898558SAl Viro #endif 111bb898558SAl Viro 1128c84014fSAndy Lutomirski extern void ist_enter(struct pt_regs *regs); 1138c84014fSAndy Lutomirski extern void ist_exit(struct pt_regs *regs); 114bced35b6SAndy Lutomirski extern void ist_begin_non_atomic(struct pt_regs *regs); 115bced35b6SAndy Lutomirski extern void ist_end_non_atomic(void); 11695927475SAndy Lutomirski 1176271cfdfSAndy Lutomirski #ifdef CONFIG_VMAP_STACK 1186271cfdfSAndy Lutomirski void __noreturn handle_stack_overflow(const char *message, 1196271cfdfSAndy Lutomirski struct pt_regs *regs, 1206271cfdfSAndy Lutomirski unsigned long fault_address); 1216271cfdfSAndy Lutomirski #endif 1226271cfdfSAndy Lutomirski 123c9408265SKees Cook /* Interrupts/Exceptions */ 124c9408265SKees Cook enum { 125c9408265SKees Cook X86_TRAP_DE = 0, /* 0, Divide-by-zero */ 126c9408265SKees Cook X86_TRAP_DB, /* 1, Debug */ 127c9408265SKees Cook X86_TRAP_NMI, /* 2, Non-maskable Interrupt */ 128c9408265SKees Cook X86_TRAP_BP, /* 3, Breakpoint */ 129c9408265SKees Cook X86_TRAP_OF, /* 4, Overflow */ 130c9408265SKees Cook X86_TRAP_BR, /* 5, Bound Range Exceeded */ 131c9408265SKees Cook X86_TRAP_UD, /* 6, Invalid Opcode */ 132c9408265SKees Cook X86_TRAP_NM, /* 7, Device Not Available */ 133c9408265SKees Cook X86_TRAP_DF, /* 8, Double Fault */ 134c9408265SKees Cook X86_TRAP_OLD_MF, /* 9, Coprocessor Segment Overrun */ 135c9408265SKees Cook X86_TRAP_TS, /* 10, Invalid TSS */ 136c9408265SKees Cook X86_TRAP_NP, /* 11, Segment Not Present */ 137c9408265SKees Cook X86_TRAP_SS, /* 12, Stack Segment Fault */ 138c9408265SKees Cook X86_TRAP_GP, /* 13, General Protection Fault */ 139c9408265SKees Cook X86_TRAP_PF, /* 14, Page Fault */ 140c9408265SKees Cook X86_TRAP_SPURIOUS, /* 15, Spurious Interrupt */ 141c9408265SKees Cook X86_TRAP_MF, /* 16, x87 Floating-Point Exception */ 142c9408265SKees Cook X86_TRAP_AC, /* 17, Alignment Check */ 143c9408265SKees Cook X86_TRAP_MC, /* 18, Machine Check */ 144c9408265SKees Cook X86_TRAP_XF, /* 19, SIMD Floating-Point Exception */ 145c9408265SKees Cook X86_TRAP_IRET = 32, /* 32, IRET Exception */ 146c9408265SKees Cook }; 147c9408265SKees Cook 1481965aae3SH. Peter Anvin #endif /* _ASM_X86_TRAPS_H */ 149