[PATCH 1/6 v5] ACPI: extlog: Trace CPER Non-standard Section Body

Fabio M. De Francesco fabio.m.de.francesco at linux.intel.com
Sat Oct 18 00:30:46 AEDT 2025


ghes_do_proc() has a catch-all for unknown or unhandled CPER formats
(UEFI v2.10 Appendix N 2.3), extlog_print() does not. This gap was
noticed by a RAS test that injected CXL protocol errors which were
notified to extlog_print() via the IOMCA (I/O Machine Check
Architecture) mechanism. Bring parity to the extlog_print() path by
including a similar log_non_standard_event().

Cc: Dan Williams <dan.j.williams at intel.com>
Reviewed-by: Dan Williams <dan.j.williams at intel.com>
Reviewed-by: Dave Jiang <dave.jiang at intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron at huawei.com>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo at intel.com>
Signed-off-by: Fabio M. De Francesco <fabio.m.de.francesco at linux.intel.com>
---
 drivers/acpi/acpi_extlog.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index f6b9562779de0..47d11cb5c9120 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -183,6 +183,12 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
 			if (gdata->error_data_length >= sizeof(*mem))
 				trace_extlog_mem_event(mem, err_seq, fru_id, fru_text,
 						       (u8)gdata->error_severity);
+		} else {
+			void *err = acpi_hest_get_payload(gdata);
+
+			log_non_standard_event(sec_type, fru_id, fru_text,
+					       gdata->error_severity, err,
+					       gdata->error_data_length);
 		}
 	}
 
-- 
2.51.0



More information about the Linuxppc-dev mailing list