change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/arch/x86/include/asm/traps.h
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@@ -6,89 +6,22 @@
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 #include <linux/kprobes.h>
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 #include <asm/debugreg.h>
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+#include <asm/idtentry.h>
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 #include <asm/siginfo.h>			/* TRAP_TRACE, ... */
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+#include <asm/trap_pf.h>
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-#define dotraplinkage __visible
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-
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-asmlinkage void divide_error(void);
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-asmlinkage void debug(void);
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-asmlinkage void nmi(void);
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-asmlinkage void int3(void);
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-asmlinkage void overflow(void);
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-asmlinkage void bounds(void);
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-asmlinkage void invalid_op(void);
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-asmlinkage void device_not_available(void);
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 #ifdef CONFIG_X86_64
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-asmlinkage void double_fault(void);
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-#endif
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-asmlinkage void coprocessor_segment_overrun(void);
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-asmlinkage void invalid_TSS(void);
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-asmlinkage void segment_not_present(void);
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-asmlinkage void stack_segment(void);
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-asmlinkage void general_protection(void);
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-asmlinkage void page_fault(void);
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-asmlinkage void async_page_fault(void);
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-asmlinkage void spurious_interrupt_bug(void);
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-asmlinkage void coprocessor_error(void);
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-asmlinkage void alignment_check(void);
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-#ifdef CONFIG_X86_MCE
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-asmlinkage void machine_check(void);
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-#endif /* CONFIG_X86_MCE */
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-asmlinkage void simd_coprocessor_error(void);
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-
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-#if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
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-asmlinkage void xen_divide_error(void);
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-asmlinkage void xen_xennmi(void);
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-asmlinkage void xen_xendebug(void);
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-asmlinkage void xen_int3(void);
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-asmlinkage void xen_overflow(void);
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-asmlinkage void xen_bounds(void);
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-asmlinkage void xen_invalid_op(void);
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-asmlinkage void xen_device_not_available(void);
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-asmlinkage void xen_double_fault(void);
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-asmlinkage void xen_coprocessor_segment_overrun(void);
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-asmlinkage void xen_invalid_TSS(void);
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-asmlinkage void xen_segment_not_present(void);
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-asmlinkage void xen_stack_segment(void);
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-asmlinkage void xen_general_protection(void);
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-asmlinkage void xen_page_fault(void);
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-asmlinkage void xen_spurious_interrupt_bug(void);
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-asmlinkage void xen_coprocessor_error(void);
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-asmlinkage void xen_alignment_check(void);
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-#ifdef CONFIG_X86_MCE
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-asmlinkage void xen_machine_check(void);
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-#endif /* CONFIG_X86_MCE */
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-asmlinkage void xen_simd_coprocessor_error(void);
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+asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
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+asmlinkage __visible notrace
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+struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s);
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+void __init trap_init(void);
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+asmlinkage __visible noinstr struct pt_regs *vc_switch_off_ist(struct pt_regs *eregs);
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 #endif
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-dotraplinkage void do_divide_error(struct pt_regs *, long);
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-dotraplinkage void do_debug(struct pt_regs *, long);
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-dotraplinkage void do_nmi(struct pt_regs *, long);
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-dotraplinkage void do_int3(struct pt_regs *, long);
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-dotraplinkage void do_overflow(struct pt_regs *, long);
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-dotraplinkage void do_bounds(struct pt_regs *, long);
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-dotraplinkage void do_invalid_op(struct pt_regs *, long);
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-dotraplinkage void do_device_not_available(struct pt_regs *, long);
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-dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
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-dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
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-dotraplinkage void do_segment_not_present(struct pt_regs *, long);
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-dotraplinkage void do_stack_segment(struct pt_regs *, long);
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-#ifdef CONFIG_X86_64
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-dotraplinkage void do_double_fault(struct pt_regs *, long);
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+#ifdef CONFIG_X86_F00F_BUG
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+/* For handling the FOOF bug */
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+void handle_invalid_op(struct pt_regs *regs);
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 #endif
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-dotraplinkage void do_general_protection(struct pt_regs *, long);
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-dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
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-dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
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-dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
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-dotraplinkage void do_alignment_check(struct pt_regs *, long);
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-#ifdef CONFIG_X86_MCE
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-dotraplinkage void do_machine_check(struct pt_regs *, long);
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-#endif
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-dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
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-#ifdef CONFIG_X86_32
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-dotraplinkage void do_iret_error(struct pt_regs *, long);
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-#endif
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-dotraplinkage void do_mce(struct pt_regs *, long);
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 static inline int get_si_code(unsigned long condition)
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 {
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@@ -103,16 +36,8 @@
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 extern int panic_on_unrecovered_nmi;
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 void math_emulate(struct math_emu_info *);
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-#ifndef CONFIG_X86_32
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-asmlinkage void smp_thermal_interrupt(struct pt_regs *regs);
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-asmlinkage void smp_threshold_interrupt(struct pt_regs *regs);
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-asmlinkage void smp_deferred_error_interrupt(struct pt_regs *regs);
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-#endif
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-extern void ist_enter(struct pt_regs *regs);
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-extern void ist_exit(struct pt_regs *regs);
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-extern void ist_begin_non_atomic(struct pt_regs *regs);
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-extern void ist_end_non_atomic(void);
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+bool fault_in_kernel_space(unsigned long address);
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 #ifdef CONFIG_VMAP_STACK
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 void __noreturn handle_stack_overflow(const char *message,
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@@ -120,47 +45,4 @@
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 				      unsigned long fault_address);
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 #endif
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-/* Interrupts/Exceptions */
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-enum {
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-	X86_TRAP_DE = 0,	/*  0, Divide-by-zero */
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-	X86_TRAP_DB,		/*  1, Debug */
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-	X86_TRAP_NMI,		/*  2, Non-maskable Interrupt */
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-	X86_TRAP_BP,		/*  3, Breakpoint */
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-	X86_TRAP_OF,		/*  4, Overflow */
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-	X86_TRAP_BR,		/*  5, Bound Range Exceeded */
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-	X86_TRAP_UD,		/*  6, Invalid Opcode */
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-	X86_TRAP_NM,		/*  7, Device Not Available */
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-	X86_TRAP_DF,		/*  8, Double Fault */
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-	X86_TRAP_OLD_MF,	/*  9, Coprocessor Segment Overrun */
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-	X86_TRAP_TS,		/* 10, Invalid TSS */
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-	X86_TRAP_NP,		/* 11, Segment Not Present */
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-	X86_TRAP_SS,		/* 12, Stack Segment Fault */
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-	X86_TRAP_GP,		/* 13, General Protection Fault */
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-	X86_TRAP_PF,		/* 14, Page Fault */
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-	X86_TRAP_SPURIOUS,	/* 15, Spurious Interrupt */
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-	X86_TRAP_MF,		/* 16, x87 Floating-Point Exception */
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-	X86_TRAP_AC,		/* 17, Alignment Check */
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-	X86_TRAP_MC,		/* 18, Machine Check */
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-	X86_TRAP_XF,		/* 19, SIMD Floating-Point Exception */
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-	X86_TRAP_IRET = 32,	/* 32, IRET Exception */
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-};
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-
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-/*
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- * Page fault error code bits:
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- *
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- *   bit 0 ==	 0: no page found	1: protection fault
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- *   bit 1 ==	 0: read access		1: write access
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- *   bit 2 ==	 0: kernel-mode access	1: user-mode access
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- *   bit 3 ==				1: use of reserved bit detected
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- *   bit 4 ==				1: fault was an instruction fetch
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- *   bit 5 ==				1: protection keys block access
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- */
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-enum x86_pf_error_code {
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-	X86_PF_PROT	=		1 << 0,
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-	X86_PF_WRITE	=		1 << 1,
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-	X86_PF_USER	=		1 << 2,
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-	X86_PF_RSVD	=		1 << 3,
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-	X86_PF_INSTR	=		1 << 4,
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-	X86_PF_PK	=		1 << 5,
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-};
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 #endif /* _ASM_X86_TRAPS_H */