diff --git a/camera/aidl/android/hardware/ICameraService.aidl b/camera/aidl/android/hardware/ICameraService.aidl
index 4bea896..81af7ee 100644
--- a/camera/aidl/android/hardware/ICameraService.aidl
+++ b/camera/aidl/android/hardware/ICameraService.aidl
@@ -63,14 +63,33 @@
     const int CAMERA_TYPE_ALL = 1;
 
     /**
-     * Return the number of camera devices available in the system
+     * Return the number of camera devices available in the system.
+     *
+     * @param type The type of the camera, can be either CAMERA_TYPE_BACKWARD_COMPATIBLE
+     *        or CAMERA_TYPE_ALL.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
      */
-    int getNumberOfCameras(int type);
+    int getNumberOfCameras(int type, int deviceId, int devicePolicy);
 
     /**
-     * Fetch basic camera information for a camera device
+     * Fetch basic camera information for a camera.
+     *
+     * @param cameraId The ID of the camera to fetch information for.
+     * @param overrideToPortrait Whether to override the sensor orientation information to
+     *        correspond to portrait.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
+     * @return CameraInfo for the camera.
      */
-    CameraInfo getCameraInfo(int cameraId, boolean overrideToPortrait);
+    CameraInfo getCameraInfo(int cameraId, boolean overrideToPortrait, int deviceId,
+            int devicePolicy);
 
     /**
      * Default UID/PID values for non-privileged callers of
@@ -80,7 +99,20 @@
     const int USE_CALLING_PID = -1;
 
     /**
-     * Open a camera device through the old camera API
+     * Open a camera device through the old camera API.
+     *
+     * @param cameraId The ID of the camera to open.
+     * @param opPackageName The package name to report for the app-ops.
+     * @param clientUid UID for the calling client.
+     * @param clientPid PID for the calling client.
+     * @param overrideToPortrait Whether to override the sensor orientation information to
+     *        correspond to portrait.
+     * @param forceSlowJpegMode Whether to force slow jpeg mode.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
      */
     ICamera connect(ICameraClient client,
             int cameraId,
@@ -88,11 +120,24 @@
             int clientUid, int clientPid,
             int targetSdkVersion,
             boolean overrideToPortrait,
-            boolean forceSlowJpegMode);
+            boolean forceSlowJpegMode,
+            int deviceId,
+            int devicePolicy);
 
     /**
-     * Open a camera device through the new camera API
-     * Only supported for device HAL versions >= 3.2
+     * Open a camera device through the new camera API.
+     * Only supported for device HAL versions >= 3.2.
+     *
+     * @param cameraId The ID of the camera to open.
+     * @param opPackageName The package name to report for the app-ops.
+     * @param clientUid UID for the calling client.
+     * @param overrideToPortrait Whether to override the sensor orientation information to
+     *        correspond to portrait.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
      */
     ICameraDeviceUser connectDevice(ICameraDeviceCallbacks callbacks,
             @utf8InCpp String cameraId,
@@ -100,7 +145,9 @@
             @nullable @utf8InCpp String featureId,
             int clientUid, int oomScoreOffset,
             int targetSdkVersion,
-            boolean overrideToPortrait);
+            boolean overrideToPortrait,
+            int deviceId,
+            int devicePolicy);
 
     /**
      * Add listener for changes to camera device and flashlight state.
@@ -168,9 +215,19 @@
     /**
      * Read the static camera metadata for a camera device.
      * Only supported for device HAL versions >= 3.2
+     *
+     * @param cameraId The ID of the camera to fetch metadata for.
+     * @param overrideToPortrait Whether to override the sensor orientation information to
+     *        correspond to portrait.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
+     * @return Characteristics for the given camera.
      */
     CameraMetadataNative getCameraCharacteristics(@utf8InCpp String cameraId, int targetSdkVersion,
-            boolean overrideToPortrait);
+            boolean overrideToPortrait, int deviceId, int devicePolicy);
 
     /**
      * Read in the vendor tag descriptors from the camera module HAL.
@@ -206,14 +263,46 @@
     ICameraInjectionSession injectCamera(@utf8InCpp String packageName, @utf8InCpp String internalCamId,
             @utf8InCpp String externalCamId, in ICameraInjectionCallback CameraInjectionCallback);
 
-    void setTorchMode(@utf8InCpp String cameraId, boolean enabled, IBinder clientBinder);
+    /**
+     * Set the torch mode for a camera device.
+     *
+     * @param cameraId The ID of the camera to set torch mode for.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
+     */
+    void setTorchMode(@utf8InCpp String cameraId, boolean enabled, IBinder clientBinder,
+            int deviceId, int devicePolicy);
 
-    // Change the brightness level of the flash unit associated with cameraId to strengthLevel.
-    // If the torch is in OFF state and strengthLevel > 0 then the torch will also be turned ON.
-    void turnOnTorchWithStrengthLevel(@utf8InCpp String cameraId, int strengthLevel, IBinder clientBinder);
+    /**
+     * Change the brightness level of the flash unit associated with cameraId to strengthLevel.
+     * If the torch is in OFF state and strengthLevel > 0 then the torch will also be turned ON.
+     *
+     * @param cameraId The ID of the camera.
+     * @param strengthLevel The torch strength level to set for the camera.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
+     */
+    void turnOnTorchWithStrengthLevel(@utf8InCpp String cameraId, int strengthLevel,
+            IBinder clientBinder, int deviceId, int devicePolicy);
 
-    // Get the brightness level of the flash unit associated with cameraId.
-    int getTorchStrengthLevel(@utf8InCpp String cameraId);
+    /**
+     * Get the brightness level of the flash unit associated with cameraId.
+     *
+     * @param cameraId The ID of the camera.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
+     * @return Torch strength level for the camera.
+     */
+    int getTorchStrengthLevel(@utf8InCpp String cameraId, int deviceId, int devicePolicy);
 
     /**
      * Notify the camera service of a system event.  Should only be called from system_server.
@@ -274,8 +363,20 @@
     const int DEVICE_STATE_FOLDED = 4;
     const int DEVICE_STATE_LAST_FRAMEWORK_BIT = 0x80000000; // 1 << 31;
 
-    // Create a CaptureRequest metadata based on template id
-    CameraMetadataNative createDefaultRequest(@utf8InCpp String cameraId, int templateId);
+    /**
+     * Create a CaptureRequest metadata based on template id
+     *
+     * @param cameraId The camera id to create the CaptureRequest for.
+     * @param templateId The template id create the CaptureRequest for.
+     * @param deviceId the device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
+     * @return Metadata representing the CaptureRequest.
+     */
+    CameraMetadataNative createDefaultRequest(@utf8InCpp String cameraId, int templateId,
+            int deviceId, int devicePolicy);
 
     /**
      * Check whether a particular session configuration with optional session parameters
@@ -283,23 +384,35 @@
      *
      * @param cameraId The camera id to query session configuration for
      * @param sessionConfiguration Specific session configuration to be verified.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
      * @return true  - in case the stream combination is supported.
      *         false - in case there is no device support.
      */
     boolean isSessionConfigurationWithParametersSupported(@utf8InCpp String cameraId,
-            in SessionConfiguration sessionConfiguration);
+            in SessionConfiguration sessionConfiguration, int deviceId, int devicePolicy);
 
     /**
      * Get the camera characteristics for a particular session configuration for
      * the given camera device.
      *
      * @param cameraId ID of the device for which the session characteristics must be fetched.
-     * @param sessionConfiguration session configuration for which the characteristics
+     * @param sessionConfiguration Session configuration for which the characteristics
      * must be fetched.
-     * @return - characteristics associated with the given session.
+     * @param deviceId The device id of the context associated with the caller.
+     * @param devicePolicy The camera policy of the device of the associated context (default
+     *                     policy for default device context). Only virtual cameras would be exposed
+     *                     only for custom policy and only real cameras would be exposed for default
+     *                     policy.
+     * @return Characteristics associated with the given session.
      */
     CameraMetadataNative getSessionCharacteristics(@utf8InCpp String cameraId,
-                int targetSdkVersion,
-                boolean overrideToPortrait,
-                in SessionConfiguration sessionConfiguration);
+            int targetSdkVersion,
+            boolean overrideToPortrait,
+            in SessionConfiguration sessionConfiguration,
+            int deviceId,
+            int devicePolicy);
 }
diff --git a/camera/aidl/android/hardware/ICameraServiceListener.aidl b/camera/aidl/android/hardware/ICameraServiceListener.aidl
index 23a87d3..9c8c88a 100644
--- a/camera/aidl/android/hardware/ICameraServiceListener.aidl
+++ b/camera/aidl/android/hardware/ICameraServiceListener.aidl
@@ -51,14 +51,20 @@
     // Use to initialize variables only
     const int STATUS_UNKNOWN          = -1;
 
-    oneway void onStatusChanged(int status, @utf8InCpp String cameraId);
+    // We pass deviceId associated with a camera in the callbacks, which is the id of the virtual
+    // device owning the camera (for virtual cameras), or kDefaultDeviceId (for real
+    // cameras). The deviceId is being passed so that the API layer (CameraManagerGlobal) can filter
+    // out the cameras that don't correspond to the context associated with the caller who
+    // registers a callback.
+
+    oneway void onStatusChanged(int status, @utf8InCpp String cameraId, int deviceId);
 
     /**
      * Notify registered client about status changes for a physical camera backing
      * a logical camera.
      */
     oneway void onPhysicalCameraStatusChanged(int status, @utf8InCpp String cameraId,
-            @utf8InCpp String physicalCameraId);
+            @utf8InCpp String physicalCameraId, int deviceId);
 
     /**
      * The torch mode status of a camera.
@@ -82,9 +88,9 @@
     // Use to initialize variables only
     const int TORCH_STATUS_UNKNOWN = -1;
 
-    oneway void onTorchStatusChanged(int status, @utf8InCpp String cameraId);
+    oneway void onTorchStatusChanged(int status, @utf8InCpp String cameraId, int deviceId);
 
-    oneway void onTorchStrengthLevelChanged(@utf8InCpp String cameraId, int newTorchStrength);
+    oneway void onTorchStrengthLevelChanged(@utf8InCpp String cameraId, int newTorchStrength, int deviceId);
 
     /**
      * Notify registered clients about camera access priority changes.
@@ -98,6 +104,6 @@
      * Only clients with android.permission.CAMERA_OPEN_CLOSE_LISTENER permission
      * will receive such callbacks.
      */
-    oneway void onCameraOpened(@utf8InCpp String cameraId, @utf8InCpp String clientPackageId);
-    oneway void onCameraClosed(@utf8InCpp String cameraId);
+    oneway void onCameraOpened(@utf8InCpp String cameraId, @utf8InCpp String clientPackageId, int deviceId);
+    oneway void onCameraClosed(@utf8InCpp String cameraId, int deviceId);
 }