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trace, ras: add ARM processor error trace event 

Currently there are trace events for the various RAS
errors with the exception of ARM processor type errors.
Add a new trace event for such errors so that the user
will know when they occur. These trace events are
consistent with the ARM processor error section type
defined in UEFI 2.6 spec section N.2.4.4.

Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Tyler Baicar 2017-06-21 12:17:13 -06:00 committed by Will Deacon
parent 297b64c743
commit e9279e83ad
5 changed files with 60 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/acpi/apei/ghes.c
View File

@ -517,7 +517,11 @@ static void ghes_do_proc(struct ghes *ghes,
}
#endif
else {
else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
log_arm_hw_error(err);
} else {
void *err = acpi_hest_get_payload(gdata);
log_non_standard_event(sec_type, fru_id, fru_text,

1
drivers/firmware/efi/cper.c
View File

@ -35,6 +35,7 @@
#include <linux/printk.h>
#include <linux/bcd.h>
#include <acpi/ghes.h>
#include <ras/ras_event.h>
#define INDENT_SP " "

6
drivers/ras/ras.c
View File

@ -20,6 +20,11 @@ void log_non_standard_event(const uuid_le *sec_type, const uuid_le *fru_id,
trace_non_standard_event(sec_type, fru_id, fru_text, sev, err, len);
}
void log_arm_hw_error(struct cper_sec_proc_arm *err)
{
trace_arm_event(err);
}
static int __init ras_init(void)
{
int rc = 0;
@ -36,6 +41,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(extlog_mem_event);
#endif
EXPORT_TRACEPOINT_SYMBOL_GPL(mc_event);
EXPORT_TRACEPOINT_SYMBOL_GPL(non_standard_event);
EXPORT_TRACEPOINT_SYMBOL_GPL(arm_event);
int __init parse_ras_param(char *str)
{

3
include/linux/ras.h
View File

@ -3,6 +3,7 @@
#include <asm/errno.h>
#include <linux/uuid.h>
#include <linux/cper.h>
#ifdef CONFIG_DEBUG_FS
int ras_userspace_consumers(void);
@ -27,11 +28,13 @@ static inline int cec_add_elem(u64 pfn) { return -ENODEV; }
void log_non_standard_event(const guid_t *sec_type,
const guid_t *fru_id, const char *fru_text,
const u8 sev, const u8 *err, const u32 len);
void log_arm_hw_error(struct cper_sec_proc_arm *err);
#else
static void log_non_standard_event(const guid_t *sec_type,
const guid_t *fru_id, const char *fru_text,
const u8 sev, const u8 *err,
const u32 len) { return; }
static void log_arm_hw_error(struct cper_sec_proc_arm *err) { return; }
#endif
#endif /* __RAS_H__ */

45
include/ras/ras_event.h
View File

@ -161,6 +161,51 @@ TRACE_EVENT(mc_event,
__get_str(driver_detail))
);
/*
* ARM Processor Events Report
*
* This event is generated when hardware detects an ARM processor error
* has occurred. UEFI 2.6 spec section N.2.4.4.
*/
TRACE_EVENT(arm_event,
TP_PROTO(const struct cper_sec_proc_arm *proc),
TP_ARGS(proc),
TP_STRUCT__entry(
__field(u64, mpidr)
__field(u64, midr)
__field(u32, running_state)
__field(u32, psci_state)
__field(u8, affinity)
),
TP_fast_assign(
if (proc->validation_bits & CPER_ARM_VALID_AFFINITY_LEVEL)
__entry->affinity = proc->affinity_level;
else
__entry->affinity = ~0;
if (proc->validation_bits & CPER_ARM_VALID_MPIDR)
__entry->mpidr = proc->mpidr;
else
__entry->mpidr = 0ULL;
__entry->midr = proc->midr;
if (proc->validation_bits & CPER_ARM_VALID_RUNNING_STATE) {
__entry->running_state = proc->running_state;
__entry->psci_state = proc->psci_state;
} else {
__entry->running_state = ~0;
__entry->psci_state = ~0;
}
),
TP_printk("affinity level: %d; MPIDR: %016llx; MIDR: %016llx; "
"running state: %d; PSCI state: %d",
__entry->affinity, __entry->mpidr, __entry->midr,
__entry->running_state, __entry->psci_state)
);
/*
* Non-Standard Section Report
*