diff options
Diffstat (limited to 'arch/x86/include/asm/traps.h')
| -rw-r--r-- | arch/x86/include/asm/traps.h | 156 |
1 files changed, 14 insertions, 142 deletions
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h index ffa0dc8a535e..47ecfff2c83d 100644 --- a/arch/x86/include/asm/traps.h +++ b/arch/x86/include/asm/traps.h @@ -6,96 +6,24 @@ #include <linux/kprobes.h> #include <asm/debugreg.h> +#include <asm/idtentry.h> #include <asm/siginfo.h> /* TRAP_TRACE, ... */ +#include <asm/trap_pf.h> -#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_xennmi(void); -asmlinkage void xen_xendebug(void); -asmlinkage void xen_int3(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 *regs, long error_code); -dotraplinkage void do_debug(struct pt_regs *regs, long error_code); -dotraplinkage void do_nmi(struct pt_regs *regs, long error_code); -dotraplinkage void do_int3(struct pt_regs *regs, long error_code); -dotraplinkage void do_overflow(struct pt_regs *regs, long error_code); -dotraplinkage void do_bounds(struct pt_regs *regs, long error_code); -dotraplinkage void do_invalid_op(struct pt_regs *regs, long error_code); -dotraplinkage void do_device_not_available(struct pt_regs *regs, long error_code); -#if defined(CONFIG_X86_64) || defined(CONFIG_DOUBLEFAULT) -dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code, unsigned long cr2); -#endif -dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *regs, long error_code); -dotraplinkage void do_invalid_TSS(struct pt_regs *regs, long error_code); -dotraplinkage void do_segment_not_present(struct pt_regs *regs, long error_code); -dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code); #ifdef CONFIG_X86_64 -dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code, unsigned long address); asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs); asmlinkage __visible notrace -struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s); +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 -dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code); -dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address); -dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *regs, long error_code); -dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code); -dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code); -#ifdef CONFIG_X86_MCE -dotraplinkage void do_machine_check(struct pt_regs *regs, long error_code); -#endif -dotraplinkage void do_simd_coprocessor_error(struct pt_regs *regs, long error_code); -#ifdef CONFIG_X86_32 -dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code); + +extern bool ibt_selftest(void); + +#ifdef CONFIG_X86_F00F_BUG +/* For handling the FOOF bug */ +void handle_invalid_op(struct pt_regs *regs); #endif -dotraplinkage void do_mce(struct pt_regs *regs, long error_code); static inline int get_si_code(unsigned long condition) { @@ -110,69 +38,13 @@ static inline int get_si_code(unsigned long condition) extern int panic_on_unrecovered_nmi; void math_emulate(struct math_emu_info *); -#ifndef CONFIG_X86_32 -asmlinkage void smp_thermal_interrupt(struct pt_regs *regs); -asmlinkage void smp_threshold_interrupt(struct pt_regs *regs); -asmlinkage void smp_deferred_error_interrupt(struct pt_regs *regs); -#endif - -void smp_apic_timer_interrupt(struct pt_regs *regs); -void smp_spurious_interrupt(struct pt_regs *regs); -void smp_error_interrupt(struct pt_regs *regs); -asmlinkage void smp_irq_move_cleanup_interrupt(void); -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); +bool fault_in_kernel_space(unsigned long address); #ifdef CONFIG_VMAP_STACK -void __noreturn handle_stack_overflow(const char *message, - struct pt_regs *regs, - unsigned long fault_address); +void __noreturn handle_stack_overflow(struct pt_regs *regs, + unsigned long fault_address, + struct stack_info *info); #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 */ -}; - -/* - * Page fault error code bits: - * - * bit 0 == 0: no page found 1: protection fault - * bit 1 == 0: read access 1: write access - * bit 2 == 0: kernel-mode access 1: user-mode access - * bit 3 == 1: use of reserved bit detected - * bit 4 == 1: fault was an instruction fetch - * bit 5 == 1: protection keys block access - */ -enum x86_pf_error_code { - X86_PF_PROT = 1 << 0, - X86_PF_WRITE = 1 << 1, - X86_PF_USER = 1 << 2, - X86_PF_RSVD = 1 << 3, - X86_PF_INSTR = 1 << 4, - X86_PF_PK = 1 << 5, -}; #endif /* _ASM_X86_TRAPS_H */ |