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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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97b3d290b8
Convert #TS to IDTENTRY_ERRORCODE: - Implement the C entry point with DEFINE_IDTENTRY - Emit the ASM stub with DECLARE_IDTENTRY - Remove the ASM idtentry in 64bit - Remove the open coded ASM entry code in 32bit - Fixup the XEN/PV code - Remove the old prototypes No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200505134905.350676449@linutronix.de
129 lines
4.4 KiB
C
129 lines
4.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_TRAPS_H
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#define _ASM_X86_TRAPS_H
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#include <linux/context_tracking_state.h>
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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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#define dotraplinkage __visible
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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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#ifdef CONFIG_X86_64
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asmlinkage void double_fault(void);
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#endif
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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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#if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
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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_double_fault(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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#endif
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dotraplinkage void do_debug(struct pt_regs *regs, long error_code);
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dotraplinkage void do_nmi(struct pt_regs *regs, long error_code);
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dotraplinkage void do_int3(struct pt_regs *regs, long error_code);
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dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code, unsigned long cr2);
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dotraplinkage void do_segment_not_present(struct pt_regs *regs, long error_code);
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dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code);
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dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code);
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dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
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dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *regs, long error_code);
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dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code);
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dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code);
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dotraplinkage void do_simd_coprocessor_error(struct pt_regs *regs, long error_code);
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#ifdef CONFIG_X86_32
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dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code);
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#endif
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dotraplinkage void do_mce(struct pt_regs *regs, long error_code);
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#ifdef CONFIG_X86_64
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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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#endif
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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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static inline int get_si_code(unsigned long condition)
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{
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if (condition & DR_STEP)
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return TRAP_TRACE;
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else if (condition & (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3))
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return TRAP_HWBKPT;
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else
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return TRAP_BRKPT;
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}
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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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void smp_apic_timer_interrupt(struct pt_regs *regs);
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void smp_spurious_interrupt(struct pt_regs *regs);
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void smp_error_interrupt(struct pt_regs *regs);
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asmlinkage void smp_irq_move_cleanup_interrupt(void);
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#ifdef CONFIG_VMAP_STACK
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void __noreturn handle_stack_overflow(const char *message,
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struct pt_regs *regs,
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unsigned long fault_address);
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#endif
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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 */
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