linux-kernel - [RFC PATCH v2 1/3] ACPI: extlog: Trace CPER Non-standard Section Body

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Date: Fri, 10 May 2024 13:21:45 +0200
From: "Fabio M. De Francesco" <fabio.m.de.francesco@...ux.intel.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>,
	Tony Luck <tony.luck@...el.com>,
	Borislav Petkov <bp@...en8.de>,
	linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-edac@...r.kernel.org,
	Dan Williams <dan.j.williams@...el.com>,
	"Fabio M. De Francesco" <fabio.m.de.francesco@...ux.intel.com>
Subject: [RFC PATCH v2 1/3] ACPI: extlog: Trace CPER Non-standard Section Body

Make extlog_print() (ELOG) trace "Non-standard Section Body" reported by
firmware to the OS via Common Platform Error Record (CPER) (UEFI v2.10
Appendix N 2.3).

This adds further debug information and makes ELOG logs consistent with
ghes_do_proc() (GHES).

Cc: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Fabio M. De Francesco <fabio.m.de.francesco@...ux.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 ca87a0939135..4e62d7235d33 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -182,6 +182,12 @@ 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);
+
+			trace_non_standard_event(sec_type, fru_id, fru_text,
+						 gdata->error_severity, err,
+						 gdata->error_data_length);
 		}
 	}
 
-- 
2.45.0