diff --git a/org/open_power/Proc/FSI.errors.yaml b/org/open_power/Proc/FSI.errors.yaml
new file mode 100644
index 0000000..0332e0c
--- /dev/null
+++ b/org/open_power/Proc/FSI.errors.yaml
@@ -0,0 +1,5 @@
+- name: MasterDetectionFailure
+  description: Failed while detecting the master processor
+
+- name: SlaveDetectionFailure
+  description: Failed while detecting the slave processors
diff --git a/org/open_power/Proc/FSI.metadata.yaml b/org/open_power/Proc/FSI.metadata.yaml
new file mode 100644
index 0000000..6a202f3
--- /dev/null
+++ b/org/open_power/Proc/FSI.metadata.yaml
@@ -0,0 +1,8 @@
+- name: MasterDetectionFailure
+  inherits:
+    - xyz.openbmc_project.Common.Callout.Device
+
+- name: SlaveDetectionFailure
+  meta:
+    - str: "ERRNO=%d"
+      type: int32