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powerpc/traps: add NOKPROBE_SYMBOL for sreset and mce

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These NMIs could fire any time including inside kprobe code, so
exclude them from kprobes.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-19-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2021-01-30 23:08:28 +10:00 committed by Michael Ellerman
parent e44370abb2
commit 3a3138836b
1 changed files with 2 additions and 0 deletions
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2
arch/powerpc/kernel/traps.c
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@ -517,6 +517,7 @@ void system_reset_exception(struct pt_regs *regs)
/* What should we do here? We could issue a shutdown or hard reset. */
}
NOKPROBE_SYMBOL(system_reset_exception);
/*
* I/O accesses can cause machine checks on powermacs.
@ -843,6 +844,7 @@ void machine_check_exception(struct pt_regs *regs)
bail:
if (nmi) nmi_exit();
}
NOKPROBE_SYMBOL(machine_check_exception);
void SMIException(struct pt_regs *regs)
{