File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
new file mode 100644
index 0000000..c349661
--- /dev/null
+++ b/arch/x86/include/asm/traps.h
@@ -0,0 +1,145 @@
+#ifndef _ASM_X86_TRAPS_H
+#define _ASM_X86_TRAPS_H
+
+#include <linux/context_tracking_state.h>
+#include <linux/kprobes.h>
+
+#include <asm/debugreg.h>
+#include <asm/siginfo.h> /* TRAP_TRACE, ... */
+
+#define dotraplinkage __visible
+
+asmlinkage void divide_error(void);
+asmlinkage void debug(void);
+asmlinkage void nmi(void);
+asmlinkage void int3(void);
+asmlinkage void xen_debug(void);
+asmlinkage void xen_int3(void);
+asmlinkage void xen_stack_segment(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);
+
+#ifdef CONFIG_TRACING
+asmlinkage void trace_page_fault(void);
+#define trace_stack_segment stack_segment
+#define trace_divide_error divide_error
+#define trace_bounds bounds
+#define trace_invalid_op invalid_op
+#define trace_device_not_available device_not_available
+#define trace_coprocessor_segment_overrun coprocessor_segment_overrun
+#define trace_invalid_TSS invalid_TSS
+#define trace_segment_not_present segment_not_present
+#define trace_general_protection general_protection
+#define trace_spurious_interrupt_bug spurious_interrupt_bug
+#define trace_coprocessor_error coprocessor_error
+#define trace_alignment_check alignment_check
+#define trace_simd_coprocessor_error simd_coprocessor_error
+#define trace_async_page_fault async_page_fault
+#endif
+
+dotraplinkage void do_divide_error(struct pt_regs *, long);
+dotraplinkage void do_debug(struct pt_regs *, long);
+dotraplinkage void do_nmi(struct pt_regs *, long);
+dotraplinkage void do_int3(struct pt_regs *, long);
+dotraplinkage void do_overflow(struct pt_regs *, long);
+dotraplinkage void do_bounds(struct pt_regs *, long);
+dotraplinkage void do_invalid_op(struct pt_regs *, long);
+dotraplinkage void do_device_not_available(struct pt_regs *, long);
+dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
+dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
+dotraplinkage void do_segment_not_present(struct pt_regs *, long);
+dotraplinkage void do_stack_segment(struct pt_regs *, long);
+#ifdef CONFIG_X86_64
+dotraplinkage void do_double_fault(struct pt_regs *, long);
+asmlinkage struct pt_regs *sync_regs(struct pt_regs *);
+#endif
+dotraplinkage void do_general_protection(struct pt_regs *, long);
+dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
+#ifdef CONFIG_TRACING
+dotraplinkage void trace_do_page_fault(struct pt_regs *, unsigned long);
+#else
+static inline void trace_do_page_fault(struct pt_regs *regs, unsigned long error)
+{
+ do_page_fault(regs, error);
+}
+#endif
+dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
+dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
+dotraplinkage void do_alignment_check(struct pt_regs *, long);
+#ifdef CONFIG_X86_MCE
+dotraplinkage void do_machine_check(struct pt_regs *, long);
+#endif
+dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
+#ifdef CONFIG_X86_32
+dotraplinkage void do_iret_error(struct pt_regs *, long);
+#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 *);
+#ifndef CONFIG_X86_32
+asmlinkage void smp_thermal_interrupt(void);
+asmlinkage void smp_threshold_interrupt(void);
+asmlinkage void smp_deferred_error_interrupt(void);
+#endif
+
+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);
+
+/* 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 */
+};
+
+#endif /* _ASM_X86_TRAPS_H */