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trace, RAS: Add eMCA trace event interface

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Add trace interface to elaborate all H/W error related information.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Chen, Gong
2014-06-17 22:33:07 -04:00
committed by Tony Luck
parent d963cd95be
commit 2dfb7d51a6
6 changed files with 158 additions and 8 deletions
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27
drivers/acpi/acpi_extlog.c
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@@ -16,6 +16,7 @@
#include <asm/mce.h>
#include "apei/apei-internal.h"
#include <ras/ras_event.h>
#define EXT_ELOG_ENTRY_MASK GENMASK_ULL(51, 0) /* elog entry address mask */
@@ -137,8 +138,12 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
struct mce *mce = (struct mce *)data;
int bank = mce->bank;
int cpu = mce->extcpu;
struct acpi_generic_status *estatus;
int rc;
struct acpi_generic_status *estatus, *tmp;
struct acpi_generic_data *gdata;
const uuid_le *fru_id = &NULL_UUID_LE;
char *fru_text = "";
uuid_le *sec_type;
static u32 err_seq;
estatus = extlog_elog_entry_check(cpu, bank);
if (estatus == NULL)
@@ -148,7 +153,23 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
/* clear record status to enable BIOS to update it again */
estatus->block_status = 0;
rc = print_extlog_rcd(NULL, (struct acpi_generic_status *)elog_buf, cpu);
tmp = (struct acpi_generic_status *)elog_buf;
print_extlog_rcd(NULL, tmp, cpu);
/* log event via trace */
err_seq++;
gdata = (struct acpi_generic_data *)(tmp + 1);
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;
sec_type = (uuid_le *)gdata->section_type;
if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
struct cper_sec_mem_err *mem = (void *)(gdata + 1);
if (gdata->error_data_length >= sizeof(*mem))
trace_extlog_mem_event(mem, err_seq, fru_id, fru_text,
(u8)gdata->error_severity);
}
return NOTIFY_STOP;
}