@@ -44,11 +44,13 @@
#include <linux/pci.h>
#include <linux/aer.h>
#include <linux/nmi.h>
+#include <linux/uuid.h>
#include <acpi/actbl1.h>
#include <acpi/ghes.h>
#include <acpi/apei.h>
#include <asm/tlbflush.h>
+#include <ras/ras_event.h>
#include "apei-internal.h"
@@ -453,11 +455,21 @@ static void ghes_do_proc(struct ghes *ghes,
{
int sev, sec_sev;
struct acpi_hest_generic_data *gdata;
+ uuid_le sec_type;
+ uuid_le *fru_id = &NULL_UUID_LE;
+ char *fru_text = "";
sev = ghes_severity(estatus->error_severity);
apei_estatus_for_each_section(estatus, gdata) {
sec_sev = ghes_severity(gdata->error_severity);
- if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
+ sec_type = *(uuid_le *)gdata->section_type;
+
+ if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
+ fru_id = (uuid_le *)gdata->fru_id;
+ if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
+ fru_text = gdata->fru_text;
+
+ if (!uuid_le_cmp(sec_type,
CPER_SEC_PLATFORM_MEM)) {
struct cper_sec_mem_err *mem_err;
@@ -468,7 +480,7 @@ static void ghes_do_proc(struct ghes *ghes,
ghes_handle_memory_failure(gdata, sev);
}
#ifdef CONFIG_ACPI_APEI_PCIEAER
- else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
+ else if (!uuid_le_cmp(sec_type,
CPER_SEC_PCIE)) {
struct cper_sec_pcie *pcie_err;
@@ -501,6 +513,14 @@ static void ghes_do_proc(struct ghes *ghes,
}
#endif
+#ifdef CONFIG_RAS
+ else if (trace_unknown_sec_event_enabled()) {
+ void *unknown_err = acpi_hest_generic_data_payload(gdata);
+ trace_unknown_sec_event(&sec_type,
+ fru_id, fru_text, sec_sev,
+ unknown_err, gdata->error_data_length);
+ }
+#endif
}
}
@@ -27,3 +27,4 @@ static int __init ras_init(void)
EXPORT_TRACEPOINT_SYMBOL_GPL(extlog_mem_event);
#endif
EXPORT_TRACEPOINT_SYMBOL_GPL(mc_event);
+EXPORT_TRACEPOINT_SYMBOL_GPL(unknown_sec_event);
@@ -162,6 +162,51 @@
);
/*
+ * Unknown Section Report
+ *
+ * This event is generated when hardware detected a hardware
+ * error event, which may be of non-standard section as defined
+ * in UEFI spec appendix "Common Platform Error Record", or may
+ * be of sections for which TRACE_EVENT is not defined.
+ *
+ */
+TRACE_EVENT(unknown_sec_event,
+
+ TP_PROTO(const uuid_le *sec_type,
+ const uuid_le *fru_id,
+ const char *fru_text,
+ const u8 sev,
+ const u8 *err,
+ const u32 len),
+
+ TP_ARGS(sec_type, fru_id, fru_text, sev, err, len),
+
+ TP_STRUCT__entry(
+ __array(char, sec_type, 16)
+ __array(char, fru_id, 16)
+ __string(fru_text, fru_text)
+ __field(u8, sev)
+ __field(u32, len)
+ __dynamic_array(u8, buf, len)
+ ),
+
+ TP_fast_assign(
+ memcpy(__entry->sec_type, sec_type, sizeof(uuid_le));
+ memcpy(__entry->fru_id, fru_id, sizeof(uuid_le));
+ __assign_str(fru_text, fru_text);
+ __entry->sev = sev;
+ __entry->len = len;
+ memcpy(__get_dynamic_array(buf), err, len);
+ ),
+
+ TP_printk("severity: %d; sec type:%pU; FRU: %pU %s; data len:%d; raw data:%s",
+ __entry->sev, __entry->sec_type,
+ __entry->fru_id, __get_str(fru_text),
+ __entry->len,
+ __print_hex(__get_dynamic_array(buf), __entry->len))
+);
+
+/*
* PCIe AER Trace event
*
* These events are generated when hardware detects a corrected or
UEFI spec allows for non-standard section in Common Platform Error Record. This is defined in section N.2.3 of UEFI version 2.5. Currently if the CPER section's type (UUID) does not match with any section type that the kernel knows how to parse, trace event is not generated for such section. And thus user is not able to know happening of such hardware error, including error record of non-standard section. This commit generates a trace event which contains raw error data for unrecognized CPER section. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> --- drivers/acpi/apei/ghes.c | 24 ++++++++++++++++++++++-- drivers/ras/ras.c | 1 + include/ras/ras_event.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 68 insertions(+), 2 deletions(-)