firmware: arm_sdei: Prohibit probing in '_sdei_handler'
Functions called in '_sdei_handler' are needed to be marked as 'nokprobe'. Because these functions are called in NMI context and neither the arch-code's debug infrastructure nor kprobes core supports this. Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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@ -165,6 +165,7 @@ static int invoke_sdei_fn(unsigned long function_id, unsigned long arg0,
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return err;
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}
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NOKPROBE_SYMBOL(invoke_sdei_fn);
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static struct sdei_event *sdei_event_find(u32 event_num)
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{
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@ -879,6 +880,7 @@ static void sdei_smccc_smc(unsigned long function_id,
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{
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arm_smccc_smc(function_id, arg0, arg1, arg2, arg3, arg4, 0, 0, res);
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}
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NOKPROBE_SYMBOL(sdei_smccc_smc);
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static void sdei_smccc_hvc(unsigned long function_id,
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unsigned long arg0, unsigned long arg1,
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@ -887,6 +889,7 @@ static void sdei_smccc_hvc(unsigned long function_id,
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{
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arm_smccc_hvc(function_id, arg0, arg1, arg2, arg3, arg4, 0, 0, res);
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}
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NOKPROBE_SYMBOL(sdei_smccc_hvc);
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int sdei_register_ghes(struct ghes *ghes, sdei_event_callback *normal_cb,
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sdei_event_callback *critical_cb)
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