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67ce16ec15
When we take a fault that can't be handled, we print out the page table entries associated with the faulting address. In some cases we currently print out the wrong entries. For a faulting TTBR1 address, we sometimes print out TTBR0 table entries instead, and for a faulting TTBR0 address we sometimes print out TTBR1 table entries. Fix this by choosing the tables based on the faulting address. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com> [will: zero-extend addrs to 64-bit, don't walk swapper w/ TTBR0 addr] Signed-off-by: Will Deacon <will.deacon@arm.com>
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* Based on arch/arm/include/asm/system_misc.h
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*
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* Copyright (C) 2012 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ASM_SYSTEM_MISC_H
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#define __ASM_SYSTEM_MISC_H
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#ifndef __ASSEMBLY__
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#include <linux/compiler.h>
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#include <linux/linkage.h>
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#include <linux/irqflags.h>
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#include <linux/signal.h>
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#include <linux/ratelimit.h>
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#include <linux/reboot.h>
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struct pt_regs;
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void die(const char *msg, struct pt_regs *regs, int err);
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struct siginfo;
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void arm64_notify_die(const char *str, struct pt_regs *regs,
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struct siginfo *info, int err);
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void hook_debug_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
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struct pt_regs *),
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int sig, int code, const char *name);
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struct mm_struct;
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extern void show_pte(unsigned long addr);
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extern void __show_regs(struct pt_regs *);
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extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
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#define show_unhandled_signals_ratelimited() \
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({ \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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bool __show_ratelimited = false; \
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if (show_unhandled_signals && __ratelimit(&_rs)) \
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__show_ratelimited = true; \
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__show_ratelimited; \
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})
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_SYSTEM_MISC_H */
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