[PATCH 1/4 v3] ACPI: extlog: Trace CPER Non-standard Section Body
From: Fabio M. De Francesco <hidden>
Date: 2025-06-03 15:55:55
Also in:
linux-acpi, linux-cxl, linux-edac, linux-pci, lkml
Subsystem:
acpi, ras infrastructure, the rest · Maintainers:
"Rafael J. Wysocki", Tony Luck, Borislav Petkov, Linus Torvalds
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 <redacted> Reviewed-by: Dan Williams <redacted> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Fabio M. De Francesco <redacted> --- drivers/acpi/acpi_extlog.c | 6 ++++++ drivers/ras/ras.c | 1 + 2 files changed, 7 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); } }
diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c
index a6e4792a1b2e9..ac0e132ccc3eb 100644
--- a/drivers/ras/ras.c
+++ b/drivers/ras/ras.c@@ -51,6 +51,7 @@ void log_non_standard_event(const guid_t *sec_type, const guid_t *fru_id, { trace_non_standard_event(sec_type, fru_id, fru_text, sev, err, len); } +EXPORT_SYMBOL_GPL(log_non_standard_event); void log_arm_hw_error(struct cper_sec_proc_arm *err) {
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2.49.0