diff --git a/media/bufferpool/aidl/Android.bp b/media/bufferpool/aidl/Android.bp
index 8e013e0..9dcc90e 100644
--- a/media/bufferpool/aidl/Android.bp
+++ b/media/bufferpool/aidl/Android.bp
@@ -26,6 +26,9 @@
     vendor_available: true,
     double_loadable: true,
     srcs: ["android/hardware/media/bufferpool2/*.aidl"],
+    headers: [
+        "HardwareBuffer_aidl",
+    ],
     imports: [
         "android.hardware.common-V2",
         "android.hardware.common.fmq-V1",
@@ -44,10 +47,13 @@
                 "//apex_available:platform",
                 "com.android.media.swcodec",
             ],
+            additional_shared_libraries: [
+                "libnativewindow",
+            ],
             min_sdk_version: "29",
         },
         rust: {
-            enabled: true,
+            enabled: false,
         },
     },
     versions_with_info: [
@@ -59,6 +65,6 @@
             ],
         },
     ],
-    frozen: true,
+    frozen: false,
 
 }
diff --git a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/Buffer.aidl b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/Buffer.aidl
index 4ea0bba..85a78ad 100644
--- a/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/Buffer.aidl
+++ b/media/bufferpool/aidl/aidl_api/android.hardware.media.bufferpool2/current/android/hardware/media/bufferpool2/Buffer.aidl
@@ -35,5 +35,6 @@
 @VintfStability
 parcelable Buffer {
   int id;
-  android.hardware.common.NativeHandle buffer;
+  @nullable android.hardware.common.NativeHandle buffer;
+  @nullable android.hardware.HardwareBuffer hwbBuffer;
 }
diff --git a/media/bufferpool/aidl/android/hardware/media/bufferpool2/Buffer.aidl b/media/bufferpool/aidl/android/hardware/media/bufferpool2/Buffer.aidl
index 976f674..79b3f23 100644
--- a/media/bufferpool/aidl/android/hardware/media/bufferpool2/Buffer.aidl
+++ b/media/bufferpool/aidl/android/hardware/media/bufferpool2/Buffer.aidl
@@ -17,6 +17,7 @@
 package android.hardware.media.bufferpool2;
 
 import android.hardware.common.NativeHandle;
+import android.hardware.HardwareBuffer;
 
 /**
  * Generic buffer for fast recycling for media/stagefright.
@@ -26,10 +27,14 @@
  * by a buffer pool, and are recycled to the buffer pool when they are
  * no longer referenced by the clients.
  *
+ * Initially all buffers in media HAL should be NativeHandle(actually native_handle_t).
+ * HardwareBuffer(actually AHardwareBuffer) for GraphicBuffer is added from V2.
+ *
  * E.g. ion or gralloc buffer
  */
 @VintfStability
 parcelable Buffer {
     int id;
-    NativeHandle buffer;
+    @nullable NativeHandle buffer;
+    @nullable HardwareBuffer hwbBuffer;
 }