[PATCH V6 09/10] trace, ras: add ARM processor error trace event

[Tyler Baicar]

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@xxxxxxxxxxxxxx>
Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 drivers/acpi/apei/ghes.c    |  9 +++++++-
 drivers/firmware/efi/cper.c |  1 +
 drivers/ras/ras.c           |  1 +
 include/ras/ras_event.h     | 55 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index f2217da..49e6c25 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -517,7 +517,14 @@ static void ghes_do_proc(struct ghes *ghes,
 
 		}
 #endif
-		else {
+		else if (!uuid_le_cmp(sec_type, CPER_SEC_PROC_ARM)) {
+			struct cper_sec_proc_arm *arm_err;
+			struct cper_arm_err_info *err_info;
+
+			arm_err = acpi_hest_generic_data_payload(gdata);
+			err_info = (void *)(arm_err +1);
+			trace_arm_event(arm_err, err_info);
+		} else {
 			void *unknown_err = acpi_hest_generic_data_payload(gdata);
 			trace_unknown_sec_event(&sec_type,
 					fru_id, fru_text, sec_sev,
diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
index 6cfcaa2..3cc0104 100644
--- a/drivers/firmware/efi/cper.c
+++ b/drivers/firmware/efi/cper.c
@@ -35,6 +35,7 @@
 #include <linux/printk.h>
 #include <linux/bcd.h>
 #include <acpi/ghes.h>
+#include <ras/ras_event.h>
 
 #define INDENT_SP	" "
 
diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c
index fb2500b..8ba5a94 100644
--- a/drivers/ras/ras.c
+++ b/drivers/ras/ras.c
@@ -28,3 +28,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(extlog_mem_event);
 #endif
 EXPORT_TRACEPOINT_SYMBOL_GPL(mc_event);
 EXPORT_TRACEPOINT_SYMBOL_GPL(unknown_sec_event);
+EXPORT_TRACEPOINT_SYMBOL_GPL(arm_event);
diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
index 5861b6f..860a5f1 100644
--- a/include/ras/ras_event.h
+++ b/include/ras/ras_event.h
@@ -162,6 +162,61 @@ TRACE_EVENT(mc_event,
 );
 
 /*
+ * 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,
+		 struct cper_arm_err_info *err_info),
+
+	TP_ARGS(proc, err_info),
+
+	TP_STRUCT__entry(
+		__field(u64, mpidr)
+		__field(u64, midr)
+		__field(u64, info)
+		__field(u64, virt_fault_addr)
+		__field(u64, phys_fault_addr)
+		__field(u32, running_state)
+		__field(u32, psci_state)
+		__field(u16, err_count)
+		__field(u8, affinity)
+		__field(u8, version)
+		__field(u8, type)
+		__field(u8, flags)
+	),
+
+	TP_fast_assign(
+		__entry->affinity = proc->affinity_level;
+		__entry->mpidr = proc->mpidr;
+		__entry->midr = proc->midr;
+		__entry->running_state = proc->running_state;
+		__entry->psci_state = proc->psci_state;
+		__entry->version = err_info->version;
+		__entry->type = err_info->type;
+		__entry->err_count = err_info->multiple_error;
+		__entry->flags = err_info->flags;
+		__entry->info = err_info->error_info;
+		__entry->virt_fault_addr = err_info->virt_fault_addr;
+		__entry->phys_fault_addr = err_info->physical_fault_addr;
+	),
+
+	TP_printk("affinity level: %d; MPIDR: %016llx; MIDR: %016llx; "
+		  "running state: %d; PSCI state: %d; version: %d; type: %d; "
+		  "error count: 0x%04x; flags: 0x%02x; info: %016llx; "
+		  "virtual fault address: %016llx; "
+		  "physical fault address: %016llx",
+		  __entry->affinity, __entry->mpidr, __entry->midr,
+		  __entry->running_state, __entry->psci_state, __entry->version,
+		  __entry->type, __entry->err_count, __entry->flags,
+		  __entry->info, __entry->virt_fault_addr,
+		  __entry->phys_fault_addr)
+);
+
+/*
  * Unknown Section Report
  *
  * This event is generated when hardware detected a hardware
-- 
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