Display warning message with VR when not supported in HD

ScriptableRenderPipeline/Core/CoreRP/Utilities/CoreUtils.cs

             return mesh;
         }
 
-        public static void DisplayUnsupportedAPIMessage()
+        public static void DisplayUnsupportedMessage(string msg)
-            Debug.LogError("Platform " + SystemInfo.operatingSystem + " with device " + SystemInfo.graphicsDeviceType.ToString() + " is not supported, no rendering will occur");
+            Debug.LogError(msg);
-                sv.ShowNotification(new GUIContent("Platform " + SystemInfo.operatingSystem + " with device " + SystemInfo.graphicsDeviceType.ToString() + " is not supported, no rendering will occur"));
+                sv.ShowNotification(new GUIContent(msg));
+
+        public static void DisplayUnsupportedAPIMessage()
+        {
+            string msg = "Platform " + SystemInfo.operatingSystem + " with device " + SystemInfo.graphicsDeviceType.ToString() + " is not supported, no rendering will occur";
+            DisplayUnsupportedMessage(msg);
+        }
+
+        public static void DisplayUnsupportedXRMessage()
+        {
+            string msg = "AR/VR devices are not supported, no rendering will occur";
+            DisplayUnsupportedMessage(msg);
+        }        
 
         // Returns 'true' if "Animated Materials" are enabled for the view associated with the given camera.
         public static  bool AreAnimatedMaterialsEnabled(Camera camera)

ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDRenderPipeline.cs

 using System.Linq;
 using UnityEngine.Rendering.PostProcessing;
 using UnityEngine.Experimental.GlobalIllumination;
+using UnityEngine.XR;
 
 namespace UnityEngine.Experimental.Rendering.HDPipeline
 {
             if (!IsSupportedPlatform())
             {
                 CoreUtils.DisplayUnsupportedAPIMessage();
+
+                return false;
+            }
+
+            // VR is not supported currently in HD
+            if (XRSettings.isDeviceActive)
+            {
+                CoreUtils.DisplayUnsupportedXRMessage();
 
                 return false;
             }