forked from mirrors/linux
78a0323506
Commit:
c305a4e983 ("x86: Move sysctls into arch/x86")
recently moved the sysctl handling of panic_on_unrecovered_nmi and
panic_on_io_nmi to x86-specific code. These variables no longer need to
be declared in the generic header file.
Relocate the variable definitions and declarations closer to where they
are used. This makes all the NMI panic options consistent and easier to
track.
[ mingo: Fixed up the SHA1 of the commit reference. ]
Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
Cc: Joel Granados <joel.granados@kernel.org>
Link: https://lore.kernel.org/r/20250327234629.3953536-3-sohil.mehta@intel.com
99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_PANIC_H
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#define _LINUX_PANIC_H
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#include <linux/compiler_attributes.h>
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#include <linux/types.h>
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struct pt_regs;
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extern long (*panic_blink)(int state);
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__printf(1, 2)
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void panic(const char *fmt, ...) __noreturn __cold;
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void nmi_panic(struct pt_regs *regs, const char *msg);
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void check_panic_on_warn(const char *origin);
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extern void oops_enter(void);
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extern void oops_exit(void);
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extern bool oops_may_print(void);
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extern bool panic_triggering_all_cpu_backtrace;
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extern int panic_timeout;
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extern unsigned long panic_print;
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extern int panic_on_oops;
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extern int panic_on_warn;
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extern unsigned long panic_on_taint;
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extern bool panic_on_taint_nousertaint;
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extern int sysctl_panic_on_rcu_stall;
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extern int sysctl_max_rcu_stall_to_panic;
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extern int sysctl_panic_on_stackoverflow;
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extern bool crash_kexec_post_notifiers;
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extern void __stack_chk_fail(void);
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void abort(void);
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/*
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* panic_cpu is used for synchronizing panic() and crash_kexec() execution. It
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* holds a CPU number which is executing panic() currently. A value of
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* PANIC_CPU_INVALID means no CPU has entered panic() or crash_kexec().
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*/
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extern atomic_t panic_cpu;
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#define PANIC_CPU_INVALID -1
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/*
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* Only to be used by arch init code. If the user over-wrote the default
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* CONFIG_PANIC_TIMEOUT, honor it.
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*/
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static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout)
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{
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if (panic_timeout == arch_default_timeout)
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panic_timeout = timeout;
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}
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/* This cannot be an enum because some may be used in assembly source. */
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#define TAINT_PROPRIETARY_MODULE 0
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#define TAINT_FORCED_MODULE 1
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#define TAINT_CPU_OUT_OF_SPEC 2
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#define TAINT_FORCED_RMMOD 3
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#define TAINT_MACHINE_CHECK 4
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#define TAINT_BAD_PAGE 5
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#define TAINT_USER 6
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#define TAINT_DIE 7
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#define TAINT_OVERRIDDEN_ACPI_TABLE 8
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#define TAINT_WARN 9
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#define TAINT_CRAP 10
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#define TAINT_FIRMWARE_WORKAROUND 11
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#define TAINT_OOT_MODULE 12
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#define TAINT_UNSIGNED_MODULE 13
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#define TAINT_SOFTLOCKUP 14
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#define TAINT_LIVEPATCH 15
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#define TAINT_AUX 16
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#define TAINT_RANDSTRUCT 17
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#define TAINT_TEST 18
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#define TAINT_FWCTL 19
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#define TAINT_FLAGS_COUNT 20
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#define TAINT_FLAGS_MAX ((1UL << TAINT_FLAGS_COUNT) - 1)
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struct taint_flag {
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char c_true; /* character printed when tainted */
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char c_false; /* character printed when not tainted */
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bool module; /* also show as a per-module taint flag */
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const char *desc; /* verbose description of the set taint flag */
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};
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extern const struct taint_flag taint_flags[TAINT_FLAGS_COUNT];
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enum lockdep_ok {
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LOCKDEP_STILL_OK,
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LOCKDEP_NOW_UNRELIABLE,
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};
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extern const char *print_tainted(void);
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extern const char *print_tainted_verbose(void);
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extern void add_taint(unsigned flag, enum lockdep_ok);
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extern int test_taint(unsigned flag);
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extern unsigned long get_taint(void);
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#endif /* _LINUX_PANIC_H */
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