Initial definition of host state management properties

Change-Id: I5047fce6ebd921547b5a6017cd909b2c97e10d96
Signed-off-by: Andrew Geissler <andrewg@us.ibm.com>
diff --git a/xyz/openbmc_project/State/Host.interface.yaml b/xyz/openbmc_project/State/Host.interface.yaml
new file mode 100644
index 0000000..a5e95e8
--- /dev/null
+++ b/xyz/openbmc_project/State/Host.interface.yaml
@@ -0,0 +1,44 @@
+description: >
+    Implement to provide host state management
+
+properties:
+    - name: RequestedHostTransition
+      type: enum[self.Transition]
+      default: 'Off'
+      description: >
+          The desired host transition.  This will be preserved across AC
+          power cycles of the BMC.
+
+    - name: CurrentHostState
+      type: enum[self.HostState]
+      description: >
+          A read-only property describing the current state of the host
+          firmware. A user can determine if a system is in transition by
+          comparing the CurrentHostState and the RequestedHostTransition
+          properties.
+
+enumerations:
+    - name: Transition
+      description: >
+        The desired transition for host firmware
+      values:
+        - name: 'Off'
+          description: >
+            Host firmware should be off
+        - name: 'On'
+          description: >
+            Host firmware should be on
+        - name: 'Reboot'
+          description: >
+            Host firmware should be rebooted with chassis power remaining on
+
+    - name: HostState
+      description: >
+        The current state of the host firmware
+      values:
+        - name: 'Off'
+          description: >
+            Host firmware is not running
+        - name: 'Running'
+          description: >
+            Host firmware is running