diff --git a/audio/common/all-versions/default/Android.bp b/audio/common/all-versions/default/Android.bp
index 45f0b8f..29a3d6f 100644
--- a/audio/common/all-versions/default/Android.bp
+++ b/audio/common/all-versions/default/Android.bp
@@ -114,7 +114,7 @@
     ],
 }
 
-cc_library_shared {
+cc_library {
     name: "android.hardware.audio.common@6.0-util",
     defaults: ["android.hardware.audio.common-util_default"],
     srcs: [":android.hardware.audio.common-util@2-6"],
@@ -152,6 +152,32 @@
 // Note: this isn't a VTS test, but rather a unit test
 // to verify correctness of conversion utilities.
 cc_test {
+    name: "android.hardware.audio.common@6.0-util_tests",
+    defaults: ["android.hardware.audio.common-util_default"],
+
+    srcs: ["tests/hidlutils6_tests.cpp"],
+
+    // Use static linking to allow running in presubmit on
+    // targets that don't have HAL V6.
+    static_libs: [
+        "android.hardware.audio.common@6.0",
+        "android.hardware.audio.common@6.0-util",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+        "-DMAJOR_VERSION=6",
+        "-DMINOR_VERSION=0",
+        "-include common/all-versions/VersionMacro.h",
+    ],
+
+    test_suites: ["device-tests"],
+}
+
+// Note: this isn't a VTS test, but rather a unit test
+// to verify correctness of conversion utilities.
+cc_test {
     name: "android.hardware.audio.common@7.0-util_tests",
     defaults: ["android.hardware.audio.common-util_default"],
 
diff --git a/audio/common/all-versions/default/HidlUtils.h b/audio/common/all-versions/default/HidlUtils.h
index 22b7152..dd4ca4d 100644
--- a/audio/common/all-versions/default/HidlUtils.h
+++ b/audio/common/all-versions/default/HidlUtils.h
@@ -210,6 +210,9 @@
                *halDeviceType == AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
         snprintf(halDeviceAddress, AUDIO_DEVICE_MAX_ADDRESS_LEN, "%s",
                  device.rSubmixAddress.c_str());
+    } else {
+        // Fall back to bus address for other device types, e.g. for microphones.
+        snprintf(halDeviceAddress, AUDIO_DEVICE_MAX_ADDRESS_LEN, "%s", device.busAddress.c_str());
     }
     return NO_ERROR;
 }
@@ -249,6 +252,7 @@
         device->rSubmixAddress = halDeviceAddress;
         return OK;
     }
+    // Fall back to bus address for other device types, e.g. for microphones.
     device->busAddress = halDeviceAddress;
     return NO_ERROR;
 }
diff --git a/audio/common/all-versions/default/TEST_MAPPING b/audio/common/all-versions/default/TEST_MAPPING
index 4316ccf..c965113 100644
--- a/audio/common/all-versions/default/TEST_MAPPING
+++ b/audio/common/all-versions/default/TEST_MAPPING
@@ -1,6 +1,9 @@
 {
   "presubmit": [
     {
+      "name": "android.hardware.audio.common@6.0-util_tests"
+    },
+    {
       "name": "android.hardware.audio.common@7.0-util_tests"
     }
   ]
diff --git a/audio/common/all-versions/default/tests/hidlutils6_tests.cpp b/audio/common/all-versions/default/tests/hidlutils6_tests.cpp
new file mode 100644
index 0000000..3a24e75
--- /dev/null
+++ b/audio/common/all-versions/default/tests/hidlutils6_tests.cpp
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#define LOG_TAG "HidlUtils_Test"
+#include <log/log.h>
+
+#include <HidlUtils.h>
+#include <system/audio.h>
+
+using namespace android;
+using namespace ::android::hardware::audio::common::CPP_VERSION;
+using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
+
+// Not generated automatically because DeviceAddress contains
+// an union.
+//
+// operator== must be defined in the same namespace as the data type.
+namespace android::hardware::audio::common::CPP_VERSION {
+
+inline bool operator==(const DeviceAddress& lhs, const DeviceAddress& rhs) {
+    if (lhs.device != rhs.device) return false;
+    audio_devices_t halDeviceType = static_cast<audio_devices_t>(lhs.device);
+    if (audio_is_a2dp_out_device(halDeviceType) || audio_is_a2dp_in_device(halDeviceType)) {
+        return lhs.address.mac == rhs.address.mac;
+    } else if (halDeviceType == AUDIO_DEVICE_OUT_IP || halDeviceType == AUDIO_DEVICE_IN_IP) {
+        return lhs.address.ipv4 == rhs.address.ipv4;
+    } else if (audio_is_usb_out_device(halDeviceType) || audio_is_usb_in_device(halDeviceType)) {
+        return lhs.address.alsa == rhs.address.alsa;
+    } else if (halDeviceType == AUDIO_DEVICE_OUT_REMOTE_SUBMIX ||
+               halDeviceType == AUDIO_DEVICE_IN_REMOTE_SUBMIX) {
+        return lhs.rSubmixAddress == rhs.rSubmixAddress;
+    }
+    // busAddress field can be used for types other than bus, e.g. for microphones.
+    return lhs.busAddress == rhs.busAddress;
+}
+
+}  // namespace android::hardware::audio::common::CPP_VERSION
+
+static void ConvertDeviceAddress(const DeviceAddress& device) {
+    audio_devices_t halDeviceType;
+    char halDeviceAddress[AUDIO_DEVICE_MAX_ADDRESS_LEN] = {};
+    EXPECT_EQ(NO_ERROR, HidlUtils::deviceAddressToHal(device, &halDeviceType, halDeviceAddress));
+    DeviceAddress deviceBack;
+    EXPECT_EQ(NO_ERROR,
+              HidlUtils::deviceAddressFromHal(halDeviceType, halDeviceAddress, &deviceBack));
+    EXPECT_EQ(device, deviceBack);
+}
+
+TEST(HidlUtils6, ConvertUniqueDeviceAddress) {
+    DeviceAddress speaker;
+    speaker.device = AudioDevice::OUT_SPEAKER;
+    ConvertDeviceAddress(speaker);
+
+    DeviceAddress micWithAddress;
+    micWithAddress.device = AudioDevice::IN_BUILTIN_MIC;
+    micWithAddress.busAddress = "bottom";
+    ConvertDeviceAddress(micWithAddress);
+}
+
+TEST(HidlUtils6, ConvertA2dpDeviceAddress) {
+    DeviceAddress a2dpSpeaker;
+    a2dpSpeaker.device = AudioDevice::OUT_BLUETOOTH_A2DP_SPEAKER;
+    a2dpSpeaker.address.mac = std::array<uint8_t, 6>{1, 2, 3, 4, 5, 6};
+    ConvertDeviceAddress(a2dpSpeaker);
+}
+
+TEST(HidlUtils6, ConvertIpv4DeviceAddress) {
+    DeviceAddress ipv4;
+    ipv4.device = AudioDevice::OUT_IP;
+    ipv4.address.ipv4 = std::array<uint8_t, 4>{1, 2, 3, 4};
+    ConvertDeviceAddress(ipv4);
+}
+
+TEST(HidlUtils6, ConvertUsbDeviceAddress) {
+    DeviceAddress usbHeadset;
+    usbHeadset.device = AudioDevice::OUT_USB_HEADSET;
+    usbHeadset.address.alsa = {1, 2};
+    ConvertDeviceAddress(usbHeadset);
+}
+
+TEST(HidlUtils6, ConvertBusDeviceAddress) {
+    DeviceAddress bus;
+    bus.device = AudioDevice::OUT_BUS;
+    bus.busAddress = "bus_device";
+    ConvertDeviceAddress(bus);
+}
+
+TEST(HidlUtils6, ConvertRSubmixDeviceAddress) {
+    DeviceAddress rSubmix;
+    rSubmix.device = AudioDevice::OUT_REMOTE_SUBMIX;
+    rSubmix.rSubmixAddress = AUDIO_REMOTE_SUBMIX_DEVICE_ADDRESS;
+    ConvertDeviceAddress(rSubmix);
+}
diff --git a/audio/common/all-versions/default/tests/hidlutils_tests.cpp b/audio/common/all-versions/default/tests/hidlutils_tests.cpp
index 99d2e72..ec6bdf3 100644
--- a/audio/common/all-versions/default/tests/hidlutils_tests.cpp
+++ b/audio/common/all-versions/default/tests/hidlutils_tests.cpp
@@ -476,6 +476,11 @@
     DeviceAddress speaker;
     speaker.deviceType = toString(xsd::AudioDevice::AUDIO_DEVICE_OUT_SPEAKER);
     ConvertDeviceAddress(speaker);
+
+    DeviceAddress micWithAddress;
+    micWithAddress.deviceType = toString(xsd::AudioDevice::AUDIO_DEVICE_IN_BUILTIN_MIC);
+    micWithAddress.address.id("bottom");
+    ConvertDeviceAddress(micWithAddress);
 }
 
 TEST(HidlUtils, ConvertA2dpDeviceAddress) {
diff --git a/bluetooth/audio/2.1/vts/functional/VtsHalBluetoothAudioV2_1TargetTest.cpp b/bluetooth/audio/2.1/vts/functional/VtsHalBluetoothAudioV2_1TargetTest.cpp
index 95903d1..57fa07b 100644
--- a/bluetooth/audio/2.1/vts/functional/VtsHalBluetoothAudioV2_1TargetTest.cpp
+++ b/bluetooth/audio/2.1/vts/functional/VtsHalBluetoothAudioV2_1TargetTest.cpp
@@ -1032,7 +1032,7 @@
  * stopped with different PCM config
  */
 TEST_P(BluetoothAudioProviderLeAudioOutputSoftwareHidlTest,
-       StartAndEndLeAudioOutputSessionWithPossiblePcmConfig) {
+       DISABLED_StartAndEndLeAudioOutputSessionWithPossiblePcmConfig) {
   bool is_codec_config_valid;
   std::unique_ptr<DataMQ> tempDataMQ;
   auto hidl_cb = [&is_codec_config_valid, &tempDataMQ](
@@ -1126,7 +1126,7 @@
  * stopped with different PCM config
  */
 TEST_P(BluetoothAudioProviderLeAudioInputSoftwareHidlTest,
-       StartAndEndLeAudioInputSessionWithPossiblePcmConfig) {
+       DISABLED_StartAndEndLeAudioInputSessionWithPossiblePcmConfig) {
   bool is_codec_config_valid;
   std::unique_ptr<DataMQ> tempDataMQ;
   auto hidl_cb = [&is_codec_config_valid, &tempDataMQ](
diff --git a/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp b/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
index df0c859..a1d5930 100644
--- a/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
+++ b/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
@@ -256,12 +256,19 @@
 
 ::testing::AssertionResult MediaCasHidlTest::createCasPlugin(int32_t caSystemId) {
     auto status = mService->isSystemIdSupported(caSystemId);
+    bool skipDescrambler = false;
     if (!status.isOk() || !status) {
         return ::testing::AssertionFailure();
     }
     status = mService->isDescramblerSupported(caSystemId);
     if (!status.isOk() || !status) {
-        return ::testing::AssertionFailure();
+        if (mIsTestDescrambler) {
+            return ::testing::AssertionFailure();
+        } else {
+            ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
+            mDescramblerBase = nullptr;
+            skipDescrambler = true;
+        }
     }
 
     mCasListener = new MediaCasListener();
@@ -274,16 +281,15 @@
         return ::testing::AssertionFailure();
     }
 
+    if (skipDescrambler) {
+        return ::testing::AssertionSuccess();
+    }
+
     auto descramblerStatus = mService->createDescrambler(caSystemId);
     if (!descramblerStatus.isOk()) {
-        if (mIsTestDescrambler) {
-            return ::testing::AssertionFailure();
-        } else {
-            ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
-            return ::testing::AssertionSuccess();
-        }
+        return ::testing::AssertionFailure();
     }
-    mIsTestDescrambler = true;
+
     mDescramblerBase = descramblerStatus;
     return ::testing::AssertionResult(mDescramblerBase != nullptr);
 }
@@ -506,7 +512,7 @@
     returnStatus = mMediaCas->setSessionPrivateData(streamSessionId, hidlPvtData);
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
         EXPECT_TRUE(returnStatus.isOk());
         EXPECT_EQ(Status::OK, returnStatus);
@@ -556,7 +562,7 @@
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
 
         sp<IDescrambler> descrambler;
@@ -606,7 +612,7 @@
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
         EXPECT_TRUE(returnStatus.isOk());
         EXPECT_EQ(Status::ERROR_CAS_SESSION_NOT_OPENED, returnStatus);
@@ -672,7 +678,7 @@
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::ERROR_CAS_UNKNOWN, returnStatus);
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         /*
          * Test MediaDescrambler error codes
          */
@@ -720,7 +726,7 @@
     std::vector<uint8_t> sessionId;
     ASSERT_TRUE(openCasSession(&sessionId));
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
         EXPECT_TRUE(returnStatus.isOk());
         EXPECT_EQ(Status::OK, returnStatus);
@@ -732,7 +738,7 @@
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         sp<IDescrambler> descrambler = IDescrambler::castFrom(mDescramblerBase);
         ASSERT_NE(nullptr, descrambler.get());
 
diff --git a/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp b/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp
index 6797506..42d70cf 100644
--- a/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp
+++ b/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp
@@ -297,12 +297,19 @@
 
 ::testing::AssertionResult MediaCasHidlTest::createCasPlugin(int32_t caSystemId) {
     auto status = mService->isSystemIdSupported(caSystemId);
+    bool skipDescrambler = false;
     if (!status.isOk() || !status) {
         return ::testing::AssertionFailure();
     }
     status = mService->isDescramblerSupported(caSystemId);
     if (!status.isOk() || !status) {
-        return ::testing::AssertionFailure();
+        if (mIsTestDescrambler) {
+            return ::testing::AssertionFailure();
+        } else {
+            ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
+            mDescramblerBase = nullptr;
+            skipDescrambler = true;
+        }
     }
 
     mCasListener = new MediaCasListener();
@@ -315,16 +322,14 @@
         return ::testing::AssertionFailure();
     }
 
+    if (skipDescrambler) {
+        return ::testing::AssertionSuccess();
+    }
+
     auto descramblerStatus = mService->createDescrambler(caSystemId);
     if (!descramblerStatus.isOk()) {
-        if (mIsTestDescrambler) {
-            return ::testing::AssertionFailure();
-        } else {
-            ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
-            return ::testing::AssertionSuccess();
-        }
+        return ::testing::AssertionFailure();
     }
-    mIsTestDescrambler = true;
 
     mDescramblerBase = descramblerStatus;
     return ::testing::AssertionResult(mDescramblerBase != nullptr);
@@ -481,7 +486,7 @@
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
         EXPECT_TRUE(returnStatus.isOk());
         EXPECT_EQ(Status::OK, returnStatus);
@@ -533,7 +538,7 @@
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
 
         sp<IDescrambler> descrambler;
diff --git a/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp b/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp
index 333dea6..0d75f5b 100644
--- a/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp
+++ b/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp
@@ -311,7 +311,6 @@
     sp<ICas> mMediaCas;
     sp<IDescramblerBase> mDescramblerBase;
     sp<MediaCasListener> mCasListener;
-    bool mIsTestDescrambler = false;
     typedef struct _OobInputTestParams {
         const SubSample* subSamples;
         uint32_t numSubSamples;
@@ -336,12 +335,15 @@
 
 ::testing::AssertionResult MediaCasHidlTest::createCasPlugin(int32_t caSystemId) {
     auto status = mService->isSystemIdSupported(caSystemId);
+    bool skipDescrambler = false;
     if (!status.isOk() || !status) {
         return ::testing::AssertionFailure();
     }
     status = mService->isDescramblerSupported(caSystemId);
     if (!status.isOk() || !status) {
-        return ::testing::AssertionFailure();
+        ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
+        mDescramblerBase = nullptr;
+        skipDescrambler = true;
     }
 
     mCasListener = new MediaCasListener();
@@ -354,12 +356,14 @@
         return ::testing::AssertionFailure();
     }
 
-    auto descramblerStatus = mService->createDescrambler(caSystemId);
-    if (!descramblerStatus.isOk()) {
-        ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
+    if (skipDescrambler) {
         return ::testing::AssertionSuccess();
     }
-    mIsTestDescrambler = true;
+
+    auto descramblerStatus = mService->createDescrambler(caSystemId);
+    if (!descramblerStatus.isOk()) {
+        return ::testing::AssertionFailure();
+    }
 
     mDescramblerBase = descramblerStatus;
     return ::testing::AssertionResult(mDescramblerBase != nullptr);
@@ -516,7 +520,7 @@
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
         EXPECT_TRUE(returnStatus.isOk());
         EXPECT_EQ(Status::OK, returnStatus);
@@ -571,7 +575,7 @@
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    if (mIsTestDescrambler) {
+    if (mDescramblerBase != nullptr) {
         EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
 
         sp<IDescrambler> descrambler;
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 613ba11..48f0b60 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -189,7 +189,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.contexthub</name>
-        <version>1.0-2</version>
+        <version>1.2</version>
         <interface>
             <name>IContexthub</name>
             <instance>default</instance>
@@ -578,7 +578,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.usb</name>
-        <version>1.0-2</version>
+        <version>1.0-3</version>
         <interface>
             <name>IUsb</name>
             <instance>default</instance>
diff --git a/contexthub/common/default/1.X/utils/IContextHubCallbackWrapper.h b/contexthub/common/default/1.X/utils/IContextHubCallbackWrapper.h
index d8cc37b..d9459b7 100644
--- a/contexthub/common/default/1.X/utils/IContextHubCallbackWrapper.h
+++ b/contexthub/common/default/1.X/utils/IContextHubCallbackWrapper.h
@@ -64,6 +64,11 @@
     virtual Return<void> handleAppAbort(uint64_t appId, uint32_t abortCode) = 0;
 
     virtual Return<void> handleAppsInfo(hidl_vec<V1_2::HubAppInfo> appInfo) = 0;
+
+    virtual Return<bool> linkToDeath(const sp<hidl_death_recipient>& recipient,
+                                     uint64_t cookie) = 0;
+
+    virtual Return<bool> unlinkToDeath(const sp<hidl_death_recipient>& recipient) = 0;
 };
 
 template <typename T>
@@ -92,6 +97,14 @@
         return mCallback->handleAppsInfo(convertToOldAppInfo(appInfo));
     }
 
+    Return<bool> linkToDeath(const sp<hidl_death_recipient>& recipient, uint64_t cookie) override {
+        return mCallback->linkToDeath(recipient, cookie);
+    }
+
+    Return<bool> unlinkToDeath(const sp<hidl_death_recipient>& recipient) override {
+        return mCallback->unlinkToDeath(recipient);
+    }
+
   protected:
     sp<T> mCallback;
 };
diff --git a/drm/1.4/types.hal b/drm/1.4/types.hal
index 706c3aa..09531a4 100644
--- a/drm/1.4/types.hal
+++ b/drm/1.4/types.hal
@@ -37,15 +37,100 @@
 };
 
 enum Status : @1.2::Status {
-
+    /**
+     * queueSecureInput buffer called with 0 subsamples.
+     */
+    CANNOT_DECRYPT_ZERO_SUBSAMPLES,
+    /**
+     * An error happened within the crypto library used by the drm plugin.
+     */
+    CRYPTO_LIBRARY_ERROR,
     /**
      * Non-specific error reported by the device OEM subsystem.
      */
     GENERAL_OEM_ERROR,
-
     /**
      * Unexpected internal failure in the drm/crypto plugin.
      */
     GENERAL_PLUGIN_ERROR,
-
+    /**
+     * The init data parameter passed to getKeyRequest is empty or invalid.
+     */
+    INIT_DATA_INVALID,
+    /**
+     * Either the key was not loaded from the license before attempting the
+     * operation, or the key ID parameter provided by the app is incorrect.
+     */
+    KEY_NOT_LOADED,
+    /**
+     * The license response was empty, fields are missing or otherwise unable
+     * to be parsed.
+     */
+    LICENSE_PARSE_ERROR,
+    /**
+     * The operation (e.g. to renew or persist a license) is prohibited by the
+     * license policy.
+     */
+    LICENSE_POLICY_ERROR,
+    /**
+     * Failed to generate a release request because a field in the stored
+     * license is empty or malformed.
+     */
+    LICENSE_RELEASE_ERROR,
+    /**
+     * The license server detected an error in the license request.
+     */
+    LICENSE_REQUEST_REJECTED,
+    /**
+     * Failed to restore an offline license because a field is empty or
+     * malformed.
+     */
+    LICENSE_RESTORE_ERROR,
+    /**
+     * License is in an invalid state for the attempted operation.
+     */
+    LICENSE_STATE_ERROR,
+    /**
+     * Certificate is malformed or is of the wrong type.
+     */
+    MALFORMED_CERTIFICATE,
+    /**
+     * Failure in the media framework.
+     */
+    MEDIA_FRAMEWORK_ERROR,
+    /**
+     * Certificate has not been set.
+     */
+    MISSING_CERTIFICATE,
+    /**
+     * There was an error loading the provisioned certificate.
+     */
+    PROVISIONING_CERTIFICATE_ERROR,
+    /**
+     * Required steps where not performed before provisioning was attempted.
+     */
+    PROVISIONING_CONFIGURATION_ERROR,
+    /**
+     * The provisioning response was empty, fields are missing or otherwise
+     * unable to be parsed.
+     */
+    PROVISIONING_PARSE_ERROR,
+    /**
+     * Provisioning failed in a way that is likely to succeed on a subsequent
+     * attempt.
+     */
+    RETRYABLE_PROVISIONING_ERROR,
+    /**
+     * Failed to generate a secure stop request because a field in the stored
+     * license is empty or malformed.
+     */
+    SECURE_STOP_RELEASE_ERROR,
+    /**
+     * The plugin was unable to read data from the filesystem.
+     */
+    STORAGE_READ_FAILURE,
+    /**
+     * The plugin was unable to write data to the filesystem.
+     */
+    STORAGE_WRITE_FAILURE,
 };
diff --git a/drm/1.4/vts/OWNERS b/drm/1.4/vts/OWNERS
new file mode 100644
index 0000000..3a0672e
--- /dev/null
+++ b/drm/1.4/vts/OWNERS
@@ -0,0 +1,9 @@
+conglin@google.com
+edwinwong@google.com
+fredgc@google.com
+jtinker@google.com
+juce@google.com
+kylealexander@google.com
+rfrias@google.com
+robertshih@google.com
+sigquit@google.com
diff --git a/drm/1.4/vts/functional/Android.bp b/drm/1.4/vts/functional/Android.bp
new file mode 100644
index 0000000..80b1dd1
--- /dev/null
+++ b/drm/1.4/vts/functional/Android.bp
@@ -0,0 +1,95 @@
+//
+// Copyright (C) 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "android.hardware.drm@1.4-vts",
+    defaults: ["VtsHalTargetTestDefaults"],
+    local_include_dirs: [
+        "include",
+    ],
+    srcs: [
+        "drm_hal_test.cpp",
+    ],
+    shared_libs: [
+        "android.hardware.drm@1.0",
+        "android.hardware.drm@1.1",
+        "android.hardware.drm@1.2",
+        "android.hardware.drm@1.3",
+        "android.hardware.drm@1.4",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "libhidlmemory",
+        "libnativehelper",
+    ],
+    static_libs: [
+        "android.hardware.drm@1.0-helper",
+        "android.hardware.drm@1.2-vts",
+        "libdrmvtshelper",
+    ],
+    export_static_lib_headers: [
+        "android.hardware.drm@1.2-vts",
+    ],
+    export_include_dirs: [
+        "include",
+    ],
+}
+
+cc_test {
+    name: "VtsHalDrmV1_4TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    include_dirs: ["hardware/interfaces/drm/1.0/vts/functional"],
+    srcs: [
+        "drm_hal_test_main.cpp",
+    ],
+    whole_static_libs: [
+        "android.hardware.drm@1.4-vts",
+    ],
+    shared_libs: [
+        "android.hardware.drm@1.0",
+        "android.hardware.drm@1.1",
+        "android.hardware.drm@1.2",
+        "android.hardware.drm@1.3",
+        "android.hardware.drm@1.4",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "libcrypto",
+        "libhidlmemory",
+        "libnativehelper",
+    ],
+    static_libs: [
+        "android.hardware.drm@1.0-helper",
+        "android.hardware.drm@1.2-vts",
+        "libdrmvtshelper",
+    ],
+    arch: {
+        arm: {
+            data: [":libvtswidevine-arm-prebuilts"],
+        },
+        arm64: {
+            data: [":libvtswidevine-arm64-prebuilts"],
+        },
+        x86: {
+            data: [":libvtswidevine-x86-prebuilts"],
+        },
+        x86_64: {
+            data: [":libvtswidevine-x86_64-prebuilts"],
+        },
+    },
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
+}
diff --git a/drm/1.4/vts/functional/AndroidTest.xml b/drm/1.4/vts/functional/AndroidTest.xml
new file mode 100644
index 0000000..b18da49
--- /dev/null
+++ b/drm/1.4/vts/functional/AndroidTest.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs VtsHalDrmV1_4TargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+    <option name="not-shardable" value="true" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer"/>
+
+    <target_preparer class="com.android.tradefed.targetprep.WifiPreparer" >
+        <option name="verify-only" value="true" />
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push-file" key="VtsHalDrmV1_4TargetTest" value="/data/local/tmp/VtsHalDrmV1_4TargetTest" />
+        <option name="push-file" key="libvtswidevine64.so" value="/data/local/tmp/64/lib/libvtswidevine.so" />
+        <option name="push-file" key="libvtswidevine32.so" value="/data/local/tmp/32/lib/libvtswidevine.so" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsHalDrmV1_4TargetTest" />
+    </test>
+</configuration>
diff --git a/drm/1.4/vts/functional/drm_hal_test.cpp b/drm/1.4/vts/functional/drm_hal_test.cpp
new file mode 100644
index 0000000..ee6635b
--- /dev/null
+++ b/drm/1.4/vts/functional/drm_hal_test.cpp
@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "drm_hal_test@1.4"
+
+#include "android/hardware/drm/1.4/vts/drm_hal_test.h"
+
+namespace android {
+namespace hardware {
+namespace drm {
+namespace V1_4 {
+namespace vts {
+
+const char* const DrmHalTest::kVideoMp4 = "video/mp4";
+const char* const DrmHalTest::kAudioMp4 = "audio/mp4";
+const uint32_t DrmHalTest::kSecLevelDefault = DrmHalTest::kSecLevelMax + 1;
+
+sp<drm::V1_4::IDrmPlugin> DrmHalTest::DrmPluginV1_4() const {
+    sp<drm::V1_4::IDrmPlugin> plugin(drm::V1_4::IDrmPlugin::castFrom(drmPlugin));
+    EXPECT_NE(nullptr, plugin.get());
+    return plugin;
+}
+
+sp<V1_0::ICryptoPlugin> DrmHalTest::CryptoPlugin(const SessionId& sid) {
+    sp<V1_0::ICryptoPlugin> crypto;
+    auto res = cryptoFactory->createPlugin(
+        getUUID(), sid,
+        [&](V1_0::Status status, const sp<V1_0::ICryptoPlugin>& plugin) {
+            EXPECT_EQ(V1_0::Status::OK, status);
+            EXPECT_NE(nullptr, plugin.get());
+            crypto = plugin;
+        });
+    EXPECT_OK(res);
+    return crypto;
+}
+
+SessionId DrmHalTest::OpenSession(uint32_t level = kSecLevelDefault) {
+    V1_0::Status err;
+    SessionId sessionId;
+    bool attemptedProvision = false;
+
+    V1_0::IDrmPlugin::openSession_cb cb = [&](
+            V1_0::Status status,
+            const hidl_vec<unsigned char> &id) {
+        err = status;
+        sessionId = id;
+    };
+
+    while (true) {
+        Return<void> res;
+        if (level > kSecLevelMax) {
+            res = drmPlugin->openSession(cb);
+        } else if (level >= kSecLevelMin) {
+            auto securityLevel = static_cast<SecurityLevel>(level);
+            res = drmPlugin->openSession_1_1(securityLevel, cb);
+        }
+        EXPECT_OK(res);
+        if (V1_0::Status::ERROR_DRM_NOT_PROVISIONED == err
+                && !attemptedProvision) {
+            // provision once if necessary
+            provision();
+            attemptedProvision = true;
+            continue;
+        } else if (V1_0::Status::ERROR_DRM_CANNOT_HANDLE == err) {
+            // must be able to handle default level
+            EXPECT_NE(kSecLevelDefault, level);
+            sessionId = {};
+        } else {
+            EXPECT_EQ(V1_0::Status::OK, err);
+            EXPECT_NE(sessionId.size(), 0u);
+        }
+        break;
+    }
+
+    return sessionId;
+}
+
+TEST_P(DrmHalTest, RequiresSecureDecoder) {
+    for (uint32_t level : {kSecLevelMin, kSecLevelMax, kSecLevelDefault}) {
+        for (auto mime : {kVideoMp4, kAudioMp4}) {
+            auto sid = OpenSession(level);
+            if (sid.size() == 0u) {
+                continue;
+            }
+            auto drm = DrmPluginV1_4();
+            sp<V1_0::ICryptoPlugin> crypto(CryptoPlugin(sid));
+            if (drm == nullptr || crypto == nullptr) {
+                continue;
+            }
+            bool r1 = crypto->requiresSecureDecoderComponent(mime);
+            bool r2;
+            if (level == kSecLevelDefault) {
+                r2 = drm->requiresSecureDecoderDefault(mime);
+            } else {
+                auto sL = static_cast<SecurityLevel>(level);
+                r2 = drm->requiresSecureDecoder(mime, sL);
+            }
+            EXPECT_EQ(r1, r2);
+            closeSession(sid);
+        }
+    }
+}
+
+TEST_P(DrmHalTest, SetPlaybackId) {
+    auto testInfo = ::testing::UnitTest::GetInstance()->current_test_info();
+    auto testName = testInfo->name();
+    const hidl_string& pbId{testName};
+    auto sid = OpenSession();
+    auto drm = DrmPluginV1_4();
+    if (drm == nullptr) {
+        return;
+    }
+    V1_0::Status err = drm->setPlaybackId(sid, pbId);
+    EXPECT_EQ(V1_0::Status::OK, err);
+    closeSession(sid);
+
+    // search for playback id among metric attributes/values
+    bool foundPbId = false;
+    auto res = drmPlugin->getMetrics([&](
+            V1_0::Status status,
+            hidl_vec<V1_1::DrmMetricGroup> metricGroups) {
+        EXPECT_EQ(V1_0::Status::OK, status);
+        for (const auto& group : metricGroups) {
+            for (const auto& metric : group.metrics) {
+                for (const auto& value : metric.values) {
+                    if (value.stringValue == pbId) {
+                        foundPbId = true;
+                        break;
+                    }
+                }
+                for (const auto& attr : metric.attributes) {
+                    if (attr.stringValue == pbId) {
+                        foundPbId = true;
+                        break;
+                    }
+                }
+            }
+        }
+    });
+    EXPECT_OK(res);
+    EXPECT_TRUE(foundPbId);
+}
+
+}  // namespace vts
+}  // namespace V1_4
+}  // namespace drm
+}  // namespace hardware
+}  // namespace android
diff --git a/drm/1.4/vts/functional/drm_hal_test_main.cpp b/drm/1.4/vts/functional/drm_hal_test_main.cpp
new file mode 100644
index 0000000..65d1b76
--- /dev/null
+++ b/drm/1.4/vts/functional/drm_hal_test_main.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Instantiate the set of test cases for each vendor module
+ */
+
+#define LOG_TAG "drm_hal_test@1.4"
+
+#include <android/hardware/drm/1.4/ICryptoFactory.h>
+#include <android/hardware/drm/1.4/IDrmFactory.h>
+#include <gtest/gtest.h>
+#include <hidl/HidlSupport.h>
+#include <hidl/ServiceManagement.h>
+#include <log/log.h>
+
+#include <algorithm>
+#include <iterator>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "android/hardware/drm/1.4/vts/drm_hal_test.h"
+
+using drm_vts::DrmHalTestParam;
+using drm_vts::PrintParamInstanceToString;
+
+using android::hardware::drm::V1_4::vts::DrmHalTest;
+
+static const std::vector<DrmHalTestParam> kAllInstances = [] {
+    using ::android::hardware::hidl_array;
+    using ::android::hardware::hidl_vec;
+    using ::android::hardware::drm::V1_4::ICryptoFactory;
+    using ::android::hardware::drm::V1_4::IDrmFactory;
+
+    std::vector<std::string> drmInstances =
+            android::hardware::getAllHalInstanceNames(IDrmFactory::descriptor);
+    std::vector<std::string> cryptoInstances =
+            android::hardware::getAllHalInstanceNames(ICryptoFactory::descriptor);
+    std::set<std::string> allInstances;
+    allInstances.insert(drmInstances.begin(), drmInstances.end());
+    allInstances.insert(cryptoInstances.begin(), cryptoInstances.end());
+
+    std::vector<DrmHalTestParam> firstInstanceUuidCombos;
+    for (const auto &instance : allInstances) {
+        auto drmFactory = IDrmFactory::getService(instance);
+        if (drmFactory == nullptr) {
+            continue;
+        }
+        drmFactory->getSupportedCryptoSchemes(
+            [&](const hidl_vec<hidl_array<uint8_t, 16>>& schemes) {
+                if (schemes.size() > 0) {
+                    firstInstanceUuidCombos.push_back(DrmHalTestParam(instance, schemes[0]));
+                }
+            });
+    }
+    return firstInstanceUuidCombos;
+}();
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(DrmHalTest);
+INSTANTIATE_TEST_SUITE_P(PerInstance, DrmHalTest,
+                         testing::ValuesIn(kAllInstances),
+                         PrintParamInstanceToString);
+
+int main(int argc, char** argv) {
+#if defined(__LP64__)
+    const char* kModulePath = "/data/local/tmp/64/lib";
+#else
+    const char* kModulePath = "/data/local/tmp/32/lib";
+#endif
+    DrmHalTest::gVendorModules
+            = new drm_vts::VendorModules(kModulePath);
+    if (DrmHalTest::gVendorModules->getPathList().size() == 0) {
+        std::cerr << "WARNING: No vendor modules found in " << kModulePath <<
+                ", all vendor tests will be skipped" << std::endl;
+    }
+    ::testing::InitGoogleTest(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
+}
diff --git a/drm/1.4/vts/functional/include/android/hardware/drm/1.4/vts/drm_hal_test.h b/drm/1.4/vts/functional/include/android/hardware/drm/1.4/vts/drm_hal_test.h
new file mode 100644
index 0000000..ed49a61
--- /dev/null
+++ b/drm/1.4/vts/functional/include/android/hardware/drm/1.4/vts/drm_hal_test.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_HAL_TEST_V1_4_H
+#define DRM_HAL_TEST_V1_4_H
+
+#include <android/hardware/drm/1.0/IDrmPlugin.h>
+#include <android/hardware/drm/1.3/IDrmFactory.h>
+#include <android/hardware/drm/1.4/ICryptoFactory.h>
+#include <android/hardware/drm/1.4/ICryptoPlugin.h>
+#include <android/hardware/drm/1.4/IDrmFactory.h>
+#include <android/hardware/drm/1.4/IDrmPlugin.h>
+#include <gtest/gtest.h>
+#include <hidl/HidlSupport.h>
+#include <hidl/ServiceManagement.h>
+#include <log/log.h>
+
+#include <algorithm>
+#include <cstdint>
+#include <iterator>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "drm_hal_vendor_module_api.h"
+#include "drm_vts_helper.h"
+#include "vendor_modules.h"
+#include "VtsHalHidlTargetCallbackBase.h"
+
+#include "android/hardware/drm/1.2/vts/drm_hal_common.h"
+
+namespace android {
+namespace hardware {
+namespace drm {
+namespace V1_4 {
+namespace vts {
+
+namespace drm = ::android::hardware::drm;
+using android::hardware::hidl_array;
+using android::hardware::hidl_string;
+using V1_0::SessionId;
+using V1_1::SecurityLevel;
+
+using drm_vts::DrmHalTestParam;
+
+class DrmHalTest : public drm::V1_2::vts::DrmHalTest {
+public:
+  using drm::V1_2::vts::DrmHalTest::DrmHalTest;
+  static const char* const kVideoMp4;
+  static const char* const kAudioMp4;
+  static const uint32_t kSecLevelMin = static_cast<uint32_t>(SecurityLevel::SW_SECURE_CRYPTO);
+  static const uint32_t kSecLevelMax = static_cast<uint32_t>(SecurityLevel::HW_SECURE_ALL);
+  static const uint32_t kSecLevelDefault;
+
+protected:
+  sp<V1_4::IDrmPlugin> DrmPluginV1_4() const;
+  sp<V1_0::ICryptoPlugin> CryptoPlugin(const SessionId& sid);
+  SessionId OpenSession(uint32_t level);
+
+private:
+  void DoProvisioning();
+};
+
+}  // namespace vts
+}  // namespace V1_4
+}  // namespace drm
+}  // namespace hardware
+}  // namespace android
+
+#endif  // DRM_HAL_TEST_V1_4_H
diff --git a/identity/support/src/IdentityCredentialSupport.cpp b/identity/support/src/IdentityCredentialSupport.cpp
index 38348ac..91985ce 100644
--- a/identity/support/src/IdentityCredentialSupport.cpp
+++ b/identity/support/src/IdentityCredentialSupport.cpp
@@ -874,8 +874,11 @@
 
     i2d_X509_NAME(subjectName.get(), &subjectPtr);
 
+    uint64_t nowMilliSeconds = time(nullptr) * 1000;
     ::keymaster::AuthorizationSet auth_set(
             ::keymaster::AuthorizationSetBuilder()
+                    .Authorization(::keymaster::TAG_CERTIFICATE_NOT_BEFORE, nowMilliSeconds)
+                    .Authorization(::keymaster::TAG_CERTIFICATE_NOT_AFTER, expireTimeMilliSeconds)
                     .Authorization(::keymaster::TAG_ATTESTATION_CHALLENGE, challenge.data(),
                                    challenge.size())
                     .Authorization(::keymaster::TAG_ACTIVE_DATETIME, activeTimeMilliSeconds)
@@ -918,7 +921,7 @@
     // the VTS tests. Of course, this is a pretend-only game since hopefully no
     // relying party is ever going to trust our batch key and those keys above
     // it.
-    ::keymaster::PureSoftKeymasterContext context(::keymaster::KmVersion::KEYMASTER_4_1,
+    ::keymaster::PureSoftKeymasterContext context(::keymaster::KmVersion::KEYMINT_1,
                                                   KM_SECURITY_LEVEL_TRUSTED_ENVIRONMENT);
 
     ::keymaster::CertificateChain cert_chain_out = generate_attestation_from_EVP(
@@ -926,7 +929,7 @@
             *attestation_signing_key, &error);
 
     if (KM_ERROR_OK != error) {
-        LOG(ERROR) << "Error generate attestation from EVP key" << error;
+        LOG(ERROR) << "Error generating attestation from EVP key: " << error;
         return {};
     }
 
diff --git a/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/DeviceInfo.aidl b/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/DeviceInfo.aidl
index 00abff9..3e25c56 100644
--- a/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/DeviceInfo.aidl
+++ b/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/DeviceInfo.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/IMemtrack.aidl b/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/IMemtrack.aidl
index 844a1bb..2e2b68e 100644
--- a/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/IMemtrack.aidl
+++ b/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/IMemtrack.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/MemtrackRecord.aidl b/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/MemtrackRecord.aidl
index 09ecefc..0e15ce3 100644
--- a/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/MemtrackRecord.aidl
+++ b/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/MemtrackRecord.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/MemtrackType.aidl b/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/MemtrackType.aidl
index 7f3f939..b19869e 100644
--- a/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/MemtrackType.aidl
+++ b/memtrack/aidl/aidl_api/android.hardware.memtrack/current/android/hardware/memtrack/MemtrackType.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
@@ -23,5 +38,4 @@
   GRAPHICS = 2,
   MULTIMEDIA = 3,
   CAMERA = 4,
-  NUM_TYPES = 5,
 }
diff --git a/memtrack/aidl/android/hardware/memtrack/MemtrackType.aidl b/memtrack/aidl/android/hardware/memtrack/MemtrackType.aidl
index 715c6bf..5db735a 100644
--- a/memtrack/aidl/android/hardware/memtrack/MemtrackType.aidl
+++ b/memtrack/aidl/android/hardware/memtrack/MemtrackType.aidl
@@ -27,5 +27,4 @@
     GRAPHICS = 2,
     MULTIMEDIA = 3,
     CAMERA = 4,
-    NUM_TYPES,
 }
diff --git a/memtrack/aidl/default/Memtrack.cpp b/memtrack/aidl/default/Memtrack.cpp
index 000b25c..49a6582 100644
--- a/memtrack/aidl/default/Memtrack.cpp
+++ b/memtrack/aidl/default/Memtrack.cpp
@@ -26,7 +26,8 @@
     if (pid < 0) {
         return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_ILLEGAL_ARGUMENT));
     }
-    if (type < MemtrackType::OTHER || type >= MemtrackType::NUM_TYPES) {
+    if (type != MemtrackType::OTHER && type != MemtrackType::GL && type != MemtrackType::GRAPHICS &&
+        type != MemtrackType::MULTIMEDIA && type != MemtrackType::CAMERA) {
         return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_UNSUPPORTED_OPERATION));
     }
     _aidl_return->clear();
diff --git a/memtrack/aidl/vts/VtsHalMemtrackTargetTest.cpp b/memtrack/aidl/vts/VtsHalMemtrackTargetTest.cpp
index d5f4612..8905f50 100644
--- a/memtrack/aidl/vts/VtsHalMemtrackTargetTest.cpp
+++ b/memtrack/aidl/vts/VtsHalMemtrackTargetTest.cpp
@@ -46,17 +46,19 @@
 
 TEST_P(MemtrackAidlTest, GetMemoryInvalidPid) {
     int pid = -1;
-    MemtrackType type = MemtrackType::OTHER;
-    std::vector<MemtrackRecord> records;
 
-    auto status = memtrack_->getMemory(pid, type, &records);
+    for (MemtrackType type : ndk::enum_range<MemtrackType>()) {
+        std::vector<MemtrackRecord> records;
 
-    EXPECT_EQ(status.getExceptionCode(), EX_ILLEGAL_ARGUMENT);
+        auto status = memtrack_->getMemory(pid, type, &records);
+
+        EXPECT_EQ(status.getExceptionCode(), EX_ILLEGAL_ARGUMENT);
+    }
 }
 
 TEST_P(MemtrackAidlTest, GetMemoryInvalidType) {
     int pid = 1;
-    MemtrackType type = MemtrackType::NUM_TYPES;
+    MemtrackType type = static_cast<MemtrackType>(-1);
     std::vector<MemtrackRecord> records;
 
     auto status = memtrack_->getMemory(pid, type, &records);
@@ -66,12 +68,13 @@
 
 TEST_P(MemtrackAidlTest, GetMemory) {
     int pid = 1;
-    MemtrackType type = MemtrackType::OTHER;
-    std::vector<MemtrackRecord> records;
+    for (MemtrackType type : ndk::enum_range<MemtrackType>()) {
+        std::vector<MemtrackRecord> records;
 
-    auto status = memtrack_->getMemory(pid, type, &records);
+        auto status = memtrack_->getMemory(pid, type, &records);
 
-    EXPECT_TRUE(status.isOk());
+        EXPECT_TRUE(status.isOk());
+    }
 }
 
 TEST_P(MemtrackAidlTest, GetGpuDeviceInfo) {
@@ -87,7 +90,7 @@
                                                ->getRuntimeInfo(RuntimeInfo::FetchFlag::CPU_VERSION)
                                                ->kernelVersion();
         EXPECT_LT(kernel_version, min_kernel_version)
-                << "Devices with 5.10 or later kernels must implement getGpuDeviceInfo()";
+                << "Devices with 5.4 or later kernels must implement getGpuDeviceInfo()";
         return;
     }
 
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/BufferDesc.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/BufferDesc.aidl
index 2074a2a..71b7758 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/BufferDesc.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/BufferDesc.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/BufferRole.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/BufferRole.aidl
index 97f748b..c2d636c 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/BufferRole.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/BufferRole.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Capabilities.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Capabilities.aidl
index 31afafc..01cc753 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Capabilities.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Capabilities.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DataLocation.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DataLocation.aidl
index 5b03ba0..074cc09 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DataLocation.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DataLocation.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DeviceBuffer.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DeviceBuffer.aidl
index 9cff6db..7bc8aa7 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DeviceBuffer.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DeviceBuffer.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DeviceType.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DeviceType.aidl
index dd4dae7..1abacc8 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DeviceType.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/DeviceType.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ErrorStatus.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ErrorStatus.aidl
index ba18c38..873c584 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ErrorStatus.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ErrorStatus.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExecutionPreference.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExecutionPreference.aidl
index cccae54..c4badc0 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExecutionPreference.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExecutionPreference.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExecutionResult.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExecutionResult.aidl
index c17ddb9..b99bb31 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExecutionResult.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExecutionResult.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Extension.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Extension.aidl
index 9eb8896..a7ae942 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Extension.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Extension.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExtensionNameAndPrefix.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExtensionNameAndPrefix.aidl
index a271a63..4c25538 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExtensionNameAndPrefix.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExtensionNameAndPrefix.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.aidl
index d1c3f09..b32b217 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/FusedActivationFunc.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/FusedActivationFunc.aidl
index ddd3c2a..2fee136 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/FusedActivationFunc.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/FusedActivationFunc.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IBuffer.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IBuffer.aidl
index a297a6b..2860692 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IBuffer.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IBuffer.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IDevice.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IDevice.aidl
index 38fda16..4c5fd2f 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IDevice.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IDevice.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IFencedExecutionCallback.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IFencedExecutionCallback.aidl
index a7cf906..abe67b8 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IFencedExecutionCallback.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IFencedExecutionCallback.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModel.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModel.aidl
index 8767712..3ca1550 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModel.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModel.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModelCallback.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModelCallback.aidl
index d1ae2eb..8eaaab6 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModelCallback.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModelCallback.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModelParcel.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModelParcel.aidl
index 048251a..8388fda 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModelParcel.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/IPreparedModelParcel.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Memory.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Memory.aidl
index aa735c0..3b2f240 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Memory.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Memory.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Model.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Model.aidl
index 944bd7f..9d12e58 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Model.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Model.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/NumberOfCacheFiles.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/NumberOfCacheFiles.aidl
index ca5f917..c1e87da 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/NumberOfCacheFiles.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/NumberOfCacheFiles.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operand.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operand.aidl
index 6615b9b..bb78caa 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operand.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operand.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandExtraParams.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandExtraParams.aidl
index 20317c7..3f6d93b 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandExtraParams.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandExtraParams.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandLifeTime.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandLifeTime.aidl
index 1082f9e..d581ced 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandLifeTime.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandLifeTime.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandPerformance.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandPerformance.aidl
index 9232b4c..87fd3a6 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandPerformance.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandPerformance.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandType.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandType.aidl
index bd95fab..186c13d 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandType.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperandType.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operation.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operation.aidl
index 383eba4..fec83a8 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operation.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Operation.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperationType.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperationType.aidl
index f786829..ad42b02 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperationType.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OperationType.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OutputShape.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OutputShape.aidl
index 1300c49..09a43f7 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OutputShape.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/OutputShape.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/PerformanceInfo.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/PerformanceInfo.aidl
index b5dc179..178946c 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/PerformanceInfo.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/PerformanceInfo.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Priority.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Priority.aidl
index 980bee3..d9b77fa 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Priority.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Priority.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Request.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Request.aidl
index 6f77066..599b3f4 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Request.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Request.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/RequestArgument.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/RequestArgument.aidl
index c9560ef..91b9aa7 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/RequestArgument.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/RequestArgument.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/RequestMemoryPool.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/RequestMemoryPool.aidl
index 123e4b0..3813b51 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/RequestMemoryPool.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/RequestMemoryPool.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Subgraph.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Subgraph.aidl
index 771d15a..dec976f 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Subgraph.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Subgraph.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/SymmPerChannelQuantParams.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/SymmPerChannelQuantParams.aidl
index 2282feb..66fdfe7 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/SymmPerChannelQuantParams.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/SymmPerChannelQuantParams.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Timing.aidl b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Timing.aidl
index b08d34a..d0de34a 100644
--- a/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Timing.aidl
+++ b/neuralnetworks/aidl/aidl_api/android.hardware.neuralnetworks/current/android/hardware/neuralnetworks/Timing.aidl
@@ -1,14 +1,29 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
 //
-// You must not make a backward incompatible changes to the AIDL files built
+// You must not make a backward incompatible change to any AIDL file built
 // with the aidl_interface module type with versions property set. The module
 // type is used to build AIDL files in a way that they can be used across
 // independently updatable components of the system. If a device is shipped
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/BufferDesc.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/BufferDesc.aidl
index 1b92ebc..bec7e86 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/BufferDesc.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/BufferDesc.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/BufferRole.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/BufferRole.aidl
index 7877bc0..0d7f678 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/BufferRole.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/BufferRole.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Capabilities.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Capabilities.aidl
index 5ce78ee..3802f1f 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Capabilities.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Capabilities.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.OperandPerformance;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/DataLocation.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/DataLocation.aidl
index 57e3f4a..f6b5e0d 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/DataLocation.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/DataLocation.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/DeviceBuffer.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/DeviceBuffer.aidl
index d51e1b2..07930a6 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/DeviceBuffer.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/DeviceBuffer.aidl
@@ -14,15 +14,15 @@
  * limitations under the License.
  */
 
- package android.hardware.neuralnetworks;
+package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.IBuffer;
 
 /**
  * A type that is used to represent a driver allocated buffer and token that corresponds to it.
  */
- @VintfStability
- parcelable DeviceBuffer {
+@VintfStability
+parcelable DeviceBuffer {
     /**
      * An IBuffer object used to interact with the device allocated buffer.
      */
@@ -33,4 +33,4 @@
      * with the tokens of other IBuffer objects that are currently alive in the same driver service.
      */
     int token;
- }
\ No newline at end of file
+}
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/DeviceType.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/DeviceType.aidl
index 8399d50..815be64 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/DeviceType.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/DeviceType.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/ErrorStatus.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/ErrorStatus.aidl
index 860f86a..c2752d9 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/ErrorStatus.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/ErrorStatus.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/ExecutionPreference.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/ExecutionPreference.aidl
index 901cb38..a3e3ce3 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/ExecutionPreference.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/ExecutionPreference.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/ExecutionResult.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/ExecutionResult.aidl
index 403fe09..1f88207 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/ExecutionResult.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/ExecutionResult.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.ErrorStatus;
@@ -44,4 +43,3 @@
      */
     Timing timing;
 }
-
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Extension.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Extension.aidl
index 159e3c1..20109bd 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Extension.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Extension.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.ExtensionOperandTypeInformation;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/ExtensionNameAndPrefix.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/ExtensionNameAndPrefix.aidl
index 76074bf..29be93f 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/ExtensionNameAndPrefix.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/ExtensionNameAndPrefix.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.aidl
index d7f93c1..b8e3449 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/ExtensionOperandTypeInformation.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
@@ -35,4 +34,3 @@
      */
     int byteSize;
 }
-
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/FusedActivationFunc.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/FusedActivationFunc.aidl
index 40f1053..861b6f0 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/FusedActivationFunc.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/FusedActivationFunc.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IBuffer.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IBuffer.aidl
index eb3dec6..2915a22 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IBuffer.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IBuffer.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.Memory;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
index 0c4954c..e17e0cd 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IDevice.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.BufferDesc;
@@ -114,7 +113,7 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     DeviceBuffer allocate(in BufferDesc desc, in IPreparedModelParcel[] preparedModels,
-        in BufferRole[] inputRoles, in BufferRole[] outputRoles);
+            in BufferRole[] inputRoles, in BufferRole[] outputRoles);
 
     /**
      * Gets the capabilities of a driver.
@@ -345,8 +344,9 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     void prepareModel(in Model model, in ExecutionPreference preference, in Priority priority,
-        in long deadline, in ParcelFileDescriptor[] modelCache, in ParcelFileDescriptor[] dataCache,
-        in byte[] token, in IPreparedModelCallback callback);
+            in long deadline, in ParcelFileDescriptor[] modelCache,
+            in ParcelFileDescriptor[] dataCache, in byte[] token,
+            in IPreparedModelCallback callback);
 
     /**
      * Creates a prepared model from cache files for execution.
@@ -427,5 +427,6 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     void prepareModelFromCache(in long deadline, in ParcelFileDescriptor[] modelCache,
-        in ParcelFileDescriptor[] dataCache, in byte[] token, in IPreparedModelCallback callback);
+            in ParcelFileDescriptor[] dataCache, in byte[] token,
+            in IPreparedModelCallback callback);
 }
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IFencedExecutionCallback.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IFencedExecutionCallback.aidl
index 47e5916..cb6db11 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IFencedExecutionCallback.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IFencedExecutionCallback.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.ErrorStatus;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
index c1b2992..2414a4a 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModel.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.common.NativeHandle;
@@ -95,7 +94,7 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     ExecutionResult executeSynchronously(in Request request, in boolean measureTiming,
-        in long deadline, in long loopTimeoutDuration);
+            in long deadline, in long loopTimeoutDuration);
 
     /**
      * Launch a fenced asynchronous execution on a prepared model.
@@ -168,6 +167,6 @@
      *     - RESOURCE_EXHAUSTED_* if the task was aborted by the driver
      */
     IFencedExecutionCallback executeFenced(in Request request, in ParcelFileDescriptor[] waitFor,
-        in boolean measureTiming, in long deadline, in long loopTimeoutDuration, in long duration,
-        out @nullable ParcelFileDescriptor syncFence);
+            in boolean measureTiming, in long deadline, in long loopTimeoutDuration,
+            in long duration, out @nullable ParcelFileDescriptor syncFence);
 }
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModelCallback.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModelCallback.aidl
index adb4218..29cca6d 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModelCallback.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModelCallback.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.ErrorStatus;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModelParcel.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModelParcel.aidl
index f198c3f..878b0ad 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModelParcel.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/IPreparedModelParcel.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.IPreparedModel;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Memory.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Memory.aidl
index 8ecb067..870f0ae 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Memory.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Memory.aidl
@@ -16,7 +16,6 @@
 
 package android.hardware.neuralnetworks;
 import android.hardware.common.NativeHandle;
-
 import android.os.ParcelFileDescriptor;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Model.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Model.aidl
index 3bb7318..2f11dec 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Model.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Model.aidl
@@ -14,12 +14,11 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.ExtensionNameAndPrefix;
-import android.hardware.neuralnetworks.Subgraph;
 import android.hardware.neuralnetworks.Memory;
+import android.hardware.neuralnetworks.Subgraph;
 
 /**
  * A Neural Network Model.
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Operand.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Operand.aidl
index 243a89d..4d2260f 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Operand.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Operand.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.DataLocation;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandExtraParams.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandExtraParams.aidl
index b0112ae..229754a 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandExtraParams.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandExtraParams.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.SymmPerChannelQuantParams;
@@ -37,4 +36,4 @@
      * The format is up to individual extensions.
      */
     byte[] extension;
-}
\ No newline at end of file
+}
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandLifeTime.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandLifeTime.aidl
index 63d1971..1d18149 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandLifeTime.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandLifeTime.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandPerformance.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandPerformance.aidl
index 9a8c2cc..7fd86f9 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandPerformance.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandPerformance.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.OperandType;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandType.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandType.aidl
index 9274b6f..12edc0f 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandType.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperandType.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Operation.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Operation.aidl
index acfb4b7..0c6032f 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Operation.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Operation.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.OperationType;
@@ -43,4 +42,3 @@
      */
     int[] outputs;
 }
-
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperationType.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperationType.aidl
index fd9da67..3f49154 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/OperationType.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/OperationType.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/OutputShape.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/OutputShape.aidl
index d206a25..f90a613 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/OutputShape.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/OutputShape.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/PerformanceInfo.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/PerformanceInfo.aidl
index 6ee29c2..6915c67 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/PerformanceInfo.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/PerformanceInfo.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Priority.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Priority.aidl
index fe87598..7dbf8e9 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Priority.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Priority.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Request.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Request.aidl
index 396ff30..dc138ba 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Request.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Request.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.RequestArgument;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/RequestArgument.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/RequestArgument.aidl
index e615fa6..8dc9252 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/RequestArgument.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/RequestArgument.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.DataLocation;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/RequestMemoryPool.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/RequestMemoryPool.aidl
index 166746d..faca2fe 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/RequestMemoryPool.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/RequestMemoryPool.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.Memory;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Subgraph.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Subgraph.aidl
index 0a76285..2e9c450 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Subgraph.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Subgraph.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 import android.hardware.neuralnetworks.Operand;
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/SymmPerChannelQuantParams.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/SymmPerChannelQuantParams.aidl
index 8ae41a4..eb47df0 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/SymmPerChannelQuantParams.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/SymmPerChannelQuantParams.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/neuralnetworks/aidl/android/hardware/neuralnetworks/Timing.aidl b/neuralnetworks/aidl/android/hardware/neuralnetworks/Timing.aidl
index b04f74e..8130e08 100644
--- a/neuralnetworks/aidl/android/hardware/neuralnetworks/Timing.aidl
+++ b/neuralnetworks/aidl/android/hardware/neuralnetworks/Timing.aidl
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package android.hardware.neuralnetworks;
 
 /**
diff --git a/radio/1.6/IRadio.hal b/radio/1.6/IRadio.hal
index 32f8b0b..7a13f0d 100644
--- a/radio/1.6/IRadio.hal
+++ b/radio/1.6/IRadio.hal
@@ -521,4 +521,20 @@
      * Response function is IRadioResponse.getSlicingConfigResponse()
      */
     oneway getSlicingConfig(int32_t serial);
+
+    /**
+     * Provide Carrier specific information to the modem that must be used to
+     * encrypt the IMSI and IMPI. Sent by the framework during boot, carrier
+     * switch and everytime the framework receives a new certificate.
+     *
+     * @param serial Serial number of request.
+     * @param imsiEncryptionInfo ImsiEncryptionInfo as defined in types.hal.
+     *
+     * Response callback is
+     * IRadioResponse.setCarrierInfoForImsiEncryptionResponse()
+     *
+     * Note this API is the same as the 1.1 version except using the 1.6 ImsiEncryptionInfo
+     * as the input param.
+     */
+    oneway setCarrierInfoForImsiEncryption_1_6(int32_t serial, @1.6::ImsiEncryptionInfo imsiEncryptionInfo);
 };
diff --git a/radio/1.6/types.hal b/radio/1.6/types.hal
index 6c23650..5d363c9 100644
--- a/radio/1.6/types.hal
+++ b/radio/1.6/types.hal
@@ -27,6 +27,7 @@
 import @1.1::GeranBands;
 import @1.1::ScanStatus;
 import @1.1::UtranBands;
+import @1.1::ImsiEncryptionInfo;
 import @1.2::Call;
 import @1.2::CellInfoCdma;
 import @1.2::CellConnectionStatus;
@@ -1115,3 +1116,20 @@
     MODE_2 = 2,
     MODE_3 = 3,
 };
+
+/**
+ * Public key type from carrier certificate.
+ */
+enum PublicKeyType : int32_t {
+    EPDG    = 1,                   // Key type to be used for ePDG
+    WLAN    = 2,                   // Key type to be used for WLAN
+};
+
+/**
+ * Carrier specific Information sent by the carrier,
+ * which will be used to encrypt the IMSI and IMPI.
+ */
+struct ImsiEncryptionInfo {
+    @1.1::ImsiEncryptionInfo base;
+    PublicKeyType keyType;         // Public key type
+};
diff --git a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
index 07b8ccb..fb50990 100644
--- a/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.6/vts/functional/radio_hidl_hal_api.cpp
@@ -676,3 +676,29 @@
     EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
     EXPECT_EQ(::android::hardware::radio::V1_6::RadioError::NONE, radioRsp_v1_6->rspInfo.error);
 }
+
+/*
+ * Test IRadio.setCarrierInfoForImsiEncryption_1_6() for the response returned.
+ */
+TEST_P(RadioHidlTest_v1_6, setCarrierInfoForImsiEncryption_1_6) {
+    serial = GetRandomSerialNumber();
+    ::android::hardware::radio::V1_6::ImsiEncryptionInfo imsiInfo;
+    imsiInfo.base.mcc = "310";
+    imsiInfo.base.mnc = "004";
+    imsiInfo.base.carrierKey = (std::vector<uint8_t>){1, 2, 3, 4, 5, 6};
+    imsiInfo.base.keyIdentifier = "Test";
+    imsiInfo.base.expirationTime = 20180101;
+    imsiInfo.keyType = PublicKeyType::EPDG;
+
+    radio_v1_6->setCarrierInfoForImsiEncryption_1_6(serial, imsiInfo);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
+
+    if (cardStatus.base.base.base.cardState == CardState::ABSENT) {
+        ASSERT_TRUE(CheckAnyOfErrors(
+                radioRsp_v1_6->rspInfo.error,
+                {::android::hardware::radio::V1_6::RadioError::NONE,
+                 ::android::hardware::radio::V1_6::RadioError::REQUEST_NOT_SUPPORTED}));
+    }
+}
diff --git a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
index 132135b..9f4e509 100644
--- a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
+++ b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/IKeyMintDevice.aidl
@@ -43,5 +43,7 @@
   void deleteAllKeys();
   void destroyAttestationIds();
   android.hardware.security.keymint.BeginResult begin(in android.hardware.security.keymint.KeyPurpose inPurpose, in byte[] inKeyBlob, in android.hardware.security.keymint.KeyParameter[] inParams, in android.hardware.security.keymint.HardwareAuthToken inAuthToken);
+  void deviceLocked(in boolean passwordOnly, in @nullable android.hardware.security.secureclock.TimeStampToken timestampToken);
+  void earlyBootEnded();
   const int AUTH_TOKEN_MAC_LENGTH = 32;
 }
diff --git a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/KeyMintHardwareInfo.aidl b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/KeyMintHardwareInfo.aidl
index 93966ea..d06312a 100644
--- a/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/KeyMintHardwareInfo.aidl
+++ b/security/keymint/aidl/aidl_api/android.hardware.security.keymint/current/android/hardware/security/keymint/KeyMintHardwareInfo.aidl
@@ -37,4 +37,5 @@
   android.hardware.security.keymint.SecurityLevel securityLevel;
   @utf8InCpp String keyMintName;
   @utf8InCpp String keyMintAuthorName;
+  boolean timestampTokenRequired;
 }
diff --git a/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl b/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
index 0120a30..71abedd 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/IKeyMintDevice.aidl
@@ -22,10 +22,11 @@
 import android.hardware.security.keymint.IKeyMintOperation;
 import android.hardware.security.keymint.KeyCreationResult;
 import android.hardware.security.keymint.KeyFormat;
-import android.hardware.security.keymint.KeyParameter;
 import android.hardware.security.keymint.KeyMintHardwareInfo;
+import android.hardware.security.keymint.KeyParameter;
 import android.hardware.security.keymint.KeyPurpose;
 import android.hardware.security.keymint.SecurityLevel;
+import android.hardware.security.secureclock.TimeStampToken;
 
 /**
  * KeyMint device definition.
@@ -346,8 +347,8 @@
      *
      * @return The result of key creation.  See KeyCreationResult.aidl.
      */
-    KeyCreationResult importKey(in KeyParameter[] keyParams, in KeyFormat keyFormat,
-                                in byte[] keyData);
+    KeyCreationResult importKey(
+            in KeyParameter[] keyParams, in KeyFormat keyFormat, in byte[] keyData);
 
     /**
      * Securely imports a key, or key pair, returning a key blob and a description of the imported
@@ -429,12 +430,9 @@
      *
      * @return The result of key creation.  See KeyCreationResult.aidl.
      */
-     KeyCreationResult importWrappedKey(in byte[] wrappedKeyData,
-                                        in byte[] wrappingKeyBlob,
-                                        in byte[] maskingKey,
-                                        in KeyParameter[] unwrappingParams,
-                                        in long passwordSid,
-                                        in long biometricSid);
+    KeyCreationResult importWrappedKey(in byte[] wrappedKeyData, in byte[] wrappingKeyBlob,
+            in byte[] maskingKey, in KeyParameter[] unwrappingParams, in long passwordSid,
+            in long biometricSid);
 
     /**
      * Upgrades an old key blob.  Keys can become "old" in two ways: IKeyMintDevice can be
@@ -705,8 +703,44 @@
      *         from operations that generate an IV or nonce, and IKeyMintOperation object pointer
      *         which is used to perform update(), finish() or abort() operations.
      */
-    BeginResult begin(in KeyPurpose inPurpose,
-               in byte[] inKeyBlob,
-               in KeyParameter[] inParams,
-               in HardwareAuthToken inAuthToken);
+    BeginResult begin(in KeyPurpose inPurpose, in byte[] inKeyBlob, in KeyParameter[] inParams,
+            in HardwareAuthToken inAuthToken);
+
+    /**
+     * Called by client to notify the IKeyMintDevice that the device is now locked, and keys with
+     * the UNLOCKED_DEVICE_REQUIRED tag should no longer be usable.  When this function is called,
+     * the IKeyMintDevice should note the current timestamp, and attempts to use
+     * UNLOCKED_DEVICE_REQUIRED keys must be rejected with Error::DEVICE_LOCKED until an
+     * authentication token with a later timestamp is presented.  If the `passwordOnly' argument is
+     * set to true the sufficiently-recent authentication token must indicate that the user
+     * authenticated with a password, not a biometric.
+     *
+     * Note that the IKeyMintDevice UNLOCKED_DEVICE_REQUIRED semantics are slightly different from
+     * the UNLOCKED_DEVICE_REQUIRED semantics enforced by keystore.  Keystore handles device locking
+     * on a per-user basis.  Because auth tokens do not contain an Android user ID, it's not
+     * possible to replicate the keystore enformcement logic in IKeyMintDevice.  So from the
+     * IKeyMintDevice perspective, any user unlock unlocks all UNLOCKED_DEVICE_REQUIRED keys.
+     * Keystore will continue enforcing the per-user device locking.
+     *
+     * @param passwordOnly specifies whether the device must be unlocked with a password, rather
+     * than a biometric, before UNLOCKED_DEVICE_REQUIRED keys can be used.
+     *
+     * @param timestampToken is used by StrongBox implementations of IKeyMintDevice.  It
+     * provides the StrongBox IKeyMintDevice with a fresh, MACed timestamp which it can use as the
+     * device-lock time, for future comparison against auth tokens when operations using
+     * UNLOCKED_DEVICE_REQUIRED keys are attempted.  Unless the auth token timestamp is newer than
+     * the timestamp in the timestampToken, the device is still considered to be locked.
+     * Crucially, if a StrongBox IKeyMintDevice receives a deviceLocked() call with a timestampToken
+     * timestamp that is less than the timestamp in the last deviceLocked() call, it must ignore the
+     * new timestamp.  TEE IKeyMintDevice implementations will receive an empty timestampToken (zero
+     * values and empty vectors) and should use their own clock as the device-lock time.
+     */
+    void deviceLocked(in boolean passwordOnly, in @nullable TimeStampToken timestampToken);
+
+    /**
+     * Called by client to notify the IKeyMintDevice that the device has left the early boot
+     * state, and that keys with the EARLY_BOOT_ONLY tag may no longer be used.  All attempts to use
+     * an EARLY_BOOT_ONLY key after this method is called must fail with Error::INVALID_KEY_BLOB.
+     */
+    void earlyBootEnded();
 }
diff --git a/security/keymint/aidl/android/hardware/security/keymint/KeyMintHardwareInfo.aidl b/security/keymint/aidl/android/hardware/security/keymint/KeyMintHardwareInfo.aidl
index 1a107ba..2fcaf4c 100644
--- a/security/keymint/aidl/android/hardware/security/keymint/KeyMintHardwareInfo.aidl
+++ b/security/keymint/aidl/android/hardware/security/keymint/KeyMintHardwareInfo.aidl
@@ -45,4 +45,11 @@
      *         same author.
      */
     @utf8InCpp String keyMintAuthorName;
+
+    /* The timestampTokenRequired is a boolean flag, which when true reflects that IKeyMintDevice
+     * instance will expect a valid TimeStampToken with various operations. This will typically
+     * required by the StrongBox implementations that generally don't have secure clock hardware to
+     * generate timestamp tokens.
+     */
+    boolean timestampTokenRequired;
 }
diff --git a/security/keymint/aidl/default/Android.bp b/security/keymint/aidl/default/Android.bp
index b2758ad..9b7e081 100644
--- a/security/keymint/aidl/default/Android.bp
+++ b/security/keymint/aidl/default/Android.bp
@@ -2,7 +2,11 @@
     name: "android.hardware.security.keymint-service",
     relative_install_path: "hw",
     init_rc: ["android.hardware.security.keymint-service.rc"],
-    vintf_fragments: ["android.hardware.security.keymint-service.xml"],
+    vintf_fragments: [
+        "android.hardware.security.keymint-service.xml",
+        "android.hardware.security.sharedsecret-service.xml",
+        "android.hardware.security.secureclock-service.xml",
+    ],
     vendor: true,
     cflags: [
         "-Wall",
@@ -10,6 +14,8 @@
     ],
     shared_libs: [
         "android.hardware.security.keymint-V1-ndk_platform",
+        "android.hardware.security.sharedsecret-unstable-ndk_platform",
+        "android.hardware.security.secureclock-unstable-ndk_platform",
         "libbase",
         "libbinder_ndk",
         "libcppbor",
diff --git a/security/keymint/aidl/default/android.hardware.security.secureclock-service.xml b/security/keymint/aidl/default/android.hardware.security.secureclock-service.xml
new file mode 100644
index 0000000..c0ff775
--- /dev/null
+++ b/security/keymint/aidl/default/android.hardware.security.secureclock-service.xml
@@ -0,0 +1,6 @@
+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.security.secureclock</name>
+        <fqname>ISecureClock/default</fqname>
+    </hal>
+</manifest>
diff --git a/security/keymint/aidl/default/android.hardware.security.sharedsecret-service.xml b/security/keymint/aidl/default/android.hardware.security.sharedsecret-service.xml
new file mode 100644
index 0000000..d37981f
--- /dev/null
+++ b/security/keymint/aidl/default/android.hardware.security.sharedsecret-service.xml
@@ -0,0 +1,6 @@
+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.security.sharedsecret</name>
+        <fqname>ISharedSecret/default</fqname>
+    </hal>
+</manifest>
diff --git a/security/keymint/aidl/default/service.cpp b/security/keymint/aidl/default/service.cpp
index a710535..75b394e 100644
--- a/security/keymint/aidl/default/service.cpp
+++ b/security/keymint/aidl/default/service.cpp
@@ -21,25 +21,38 @@
 #include <android/binder_process.h>
 
 #include <AndroidKeyMintDevice.h>
+#include <AndroidSecureClock.h>
+#include <AndroidSharedSecret.h>
 #include <keymaster/soft_keymaster_logger.h>
 
 using aidl::android::hardware::security::keymint::AndroidKeyMintDevice;
 using aidl::android::hardware::security::keymint::SecurityLevel;
+using aidl::android::hardware::security::secureclock::AndroidSecureClock;
+using aidl::android::hardware::security::sharedsecret::AndroidSharedSecret;
+
+template <typename T, class... Args>
+std::shared_ptr<T> addService(Args&&... args) {
+    std::shared_ptr<T> ser = ndk::SharedRefBase::make<T>(std::forward<Args>(args)...);
+    auto instanceName = std::string(T::descriptor) + "/default";
+    LOG(INFO) << "adding keymint service instance: " << instanceName;
+    binder_status_t status =
+            AServiceManager_addService(ser->asBinder().get(), instanceName.c_str());
+    CHECK(status == STATUS_OK);
+    return ser;
+}
 
 int main() {
     // Zero threads seems like a useless pool, but below we'll join this thread to it, increasing
     // the pool size to 1.
     ABinderProcess_setThreadPoolMaxThreadCount(0);
+
+    // Add Keymint Service
     std::shared_ptr<AndroidKeyMintDevice> keyMint =
-            ndk::SharedRefBase::make<AndroidKeyMintDevice>(SecurityLevel::SOFTWARE);
-
-    keymaster::SoftKeymasterLogger logger;
-    const auto instanceName = std::string(AndroidKeyMintDevice::descriptor) + "/default";
-    LOG(INFO) << "instance: " << instanceName;
-    binder_status_t status =
-            AServiceManager_addService(keyMint->asBinder().get(), instanceName.c_str());
-    CHECK(status == STATUS_OK);
-
+            addService<AndroidKeyMintDevice>(SecurityLevel::SOFTWARE);
+    // Add Secure Clock Service
+    addService<AndroidSecureClock>(keyMint);
+    // Add Shared Secret Service
+    addService<AndroidSharedSecret>(keyMint);
     ABinderProcess_joinThreadPool();
     return EXIT_FAILURE;  // should not reach
 }
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
index 6555157..eb66aca 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
@@ -45,7 +45,7 @@
 namespace test {
 
 namespace {
-
+typedef KeyMintAidlTestBase::KeyData KeyData;
 // Predicate for testing basic characteristics validity in generation or import.
 bool KeyCharacteristicsBasicallyValid(SecurityLevel secLevel,
                                       const vector<KeyCharacteristics>& key_characteristics) {
@@ -461,6 +461,34 @@
     }
 }
 
+auto KeyMintAidlTestBase::ProcessMessage(const vector<uint8_t>& key_blob, KeyPurpose operation,
+                                         const string& message, const AuthorizationSet& in_params)
+        -> std::tuple<ErrorCode, string, AuthorizationSet /* out_params */> {
+    AuthorizationSet begin_out_params;
+    ErrorCode result = Begin(operation, key_blob, in_params, &begin_out_params);
+    AuthorizationSet out_params(std::move(begin_out_params));
+    if (result != ErrorCode::OK) {
+        return {result, {}, out_params};
+    }
+
+    string output;
+    int32_t consumed = 0;
+    AuthorizationSet update_params;
+    AuthorizationSet update_out_params;
+    result = Update(update_params, message, &update_out_params, &output, &consumed);
+    out_params.push_back(update_out_params);
+    if (result != ErrorCode::OK) {
+        return {result, output, out_params};
+    }
+
+    string unused;
+    AuthorizationSet finish_params;
+    AuthorizationSet finish_out_params;
+    result = Finish(finish_params, message.substr(consumed), unused, &finish_out_params, &output);
+    out_params.push_back(finish_out_params);
+    return {result, output, out_params};
+}
+
 string KeyMintAidlTestBase::ProcessMessage(const vector<uint8_t>& key_blob, KeyPurpose operation,
                                            const string& message, const AuthorizationSet& in_params,
                                            AuthorizationSet* out_params) {
@@ -859,6 +887,35 @@
     return authList;
 }
 
+ErrorCode KeyMintAidlTestBase::UseAesKey(const vector<uint8_t>& aesKeyBlob) {
+    auto [result, ciphertext, out_params] = ProcessMessage(
+            aesKeyBlob, KeyPurpose::ENCRYPT, "1234567890123456",
+            AuthorizationSetBuilder().BlockMode(BlockMode::ECB).Padding(PaddingMode::NONE));
+    return result;
+}
+
+ErrorCode KeyMintAidlTestBase::UseHmacKey(const vector<uint8_t>& hmacKeyBlob) {
+    auto [result, mac, out_params] = ProcessMessage(
+            hmacKeyBlob, KeyPurpose::SIGN, "1234567890123456",
+            AuthorizationSetBuilder().Authorization(TAG_MAC_LENGTH, 128).Digest(Digest::SHA_2_256));
+    return result;
+}
+
+ErrorCode KeyMintAidlTestBase::UseRsaKey(const vector<uint8_t>& rsaKeyBlob) {
+    std::string message(2048 / 8, 'a');
+    auto [result, signature, out_params] = ProcessMessage(
+            rsaKeyBlob, KeyPurpose::SIGN, message,
+            AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE));
+    return result;
+}
+
+ErrorCode KeyMintAidlTestBase::UseEcdsaKey(const vector<uint8_t>& ecdsaKeyBlob) {
+    auto [result, signature, out_params] =
+            ProcessMessage(ecdsaKeyBlob, KeyPurpose::SIGN, "a",
+                           AuthorizationSetBuilder().Digest(Digest::SHA_2_256));
+    return result;
+}
+
 }  // namespace test
 
 }  // namespace aidl::android::hardware::security::keymint
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
index 780971d..4e546ed 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
@@ -43,6 +43,11 @@
 
 class KeyMintAidlTestBase : public ::testing::TestWithParam<string> {
   public:
+    struct KeyData {
+        vector<uint8_t> blob;
+        vector<KeyCharacteristics> characteristics;
+    };
+
     void SetUp() override;
     void TearDown() override {
         if (key_blob_.size()) {
@@ -61,7 +66,6 @@
                           vector<KeyCharacteristics>* key_characteristics);
 
     ErrorCode GenerateKey(const AuthorizationSet& key_desc);
-
     ErrorCode ImportKey(const AuthorizationSet& key_desc, KeyFormat format,
                         const string& key_material, vector<uint8_t>* key_blob,
                         vector<KeyCharacteristics>* key_characteristics);
@@ -106,7 +110,9 @@
     string ProcessMessage(const vector<uint8_t>& key_blob, KeyPurpose operation,
                           const string& message, const AuthorizationSet& in_params,
                           AuthorizationSet* out_params);
-
+    std::tuple<ErrorCode, std::string /* processedMessage */, AuthorizationSet /* out_params */>
+    ProcessMessage(const vector<uint8_t>& key_blob, KeyPurpose operation,
+                   const std::string& message, const AuthorizationSet& in_params);
     string SignMessage(const vector<uint8_t>& key_blob, const string& message,
                        const AuthorizationSet& params);
     string SignMessage(const string& message, const AuthorizationSet& params);
@@ -149,6 +155,56 @@
 
     std::pair<ErrorCode, vector<uint8_t>> UpgradeKey(const vector<uint8_t>& key_blob);
 
+    template <typename TagType>
+    std::tuple<KeyData /* aesKey */, KeyData /* hmacKey */, KeyData /* rsaKey */,
+               KeyData /* ecdsaKey */>
+    CreateTestKeys(TagType tagToTest, ErrorCode expectedReturn) {
+        /* AES */
+        KeyData aesKeyData;
+        ErrorCode errorCode = GenerateKey(AuthorizationSetBuilder()
+                                                  .AesEncryptionKey(128)
+                                                  .Authorization(tagToTest)
+                                                  .BlockMode(BlockMode::ECB)
+                                                  .Padding(PaddingMode::NONE)
+                                                  .Authorization(TAG_NO_AUTH_REQUIRED),
+                                          &aesKeyData.blob, &aesKeyData.characteristics);
+        EXPECT_EQ(expectedReturn, errorCode);
+
+        /* HMAC */
+        KeyData hmacKeyData;
+        errorCode = GenerateKey(AuthorizationSetBuilder()
+                                        .HmacKey(128)
+                                        .Authorization(tagToTest)
+                                        .Digest(Digest::SHA_2_256)
+                                        .Authorization(TAG_MIN_MAC_LENGTH, 128)
+                                        .Authorization(TAG_NO_AUTH_REQUIRED),
+                                &hmacKeyData.blob, &hmacKeyData.characteristics);
+        EXPECT_EQ(expectedReturn, errorCode);
+
+        /* RSA */
+        KeyData rsaKeyData;
+        errorCode = GenerateKey(AuthorizationSetBuilder()
+                                        .RsaSigningKey(2048, 65537)
+                                        .Authorization(tagToTest)
+                                        .Digest(Digest::NONE)
+                                        .Padding(PaddingMode::NONE)
+                                        .Authorization(TAG_NO_AUTH_REQUIRED)
+                                        .SetDefaultValidity(),
+                                &rsaKeyData.blob, &rsaKeyData.characteristics);
+        EXPECT_EQ(expectedReturn, errorCode);
+
+        /* ECDSA */
+        KeyData ecdsaKeyData;
+        errorCode = GenerateKey(AuthorizationSetBuilder()
+                                        .EcdsaSigningKey(256)
+                                        .Authorization(tagToTest)
+                                        .Digest(Digest::SHA_2_256)
+                                        .Authorization(TAG_NO_AUTH_REQUIRED)
+                                        .SetDefaultValidity(),
+                                &ecdsaKeyData.blob, &ecdsaKeyData.characteristics);
+        EXPECT_EQ(expectedReturn, errorCode);
+        return {aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData};
+    }
     bool IsSecure() const { return securityLevel_ != SecurityLevel::SOFTWARE; }
     SecurityLevel SecLevel() const { return securityLevel_; }
 
@@ -182,6 +238,10 @@
             const vector<KeyCharacteristics>& key_characteristics);
     AuthorizationSet SwEnforcedAuthorizations(
             const vector<KeyCharacteristics>& key_characteristics);
+    ErrorCode UseAesKey(const vector<uint8_t>& aesKeyBlob);
+    ErrorCode UseHmacKey(const vector<uint8_t>& hmacKeyBlob);
+    ErrorCode UseRsaKey(const vector<uint8_t>& rsaKeyBlob);
+    ErrorCode UseEcdsaKey(const vector<uint8_t>& ecdsaKeyBlob);
 
   private:
     std::shared_ptr<IKeyMintDevice> keymint_;
diff --git a/security/keymint/aidl/vts/functional/KeyMintTest.cpp b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
index 88122ce..7801ed1 100644
--- a/security/keymint/aidl/vts/functional/KeyMintTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
@@ -78,7 +78,8 @@
 namespace {
 
 template <TagType tag_type, Tag tag, typename ValueT>
-bool contains(vector<KeyParameter>& set, TypedTag<tag_type, tag> ttag, ValueT expected_value) {
+bool contains(const vector<KeyParameter>& set, TypedTag<tag_type, tag> ttag,
+              ValueT expected_value) {
     auto it = std::find_if(set.begin(), set.end(), [&](const KeyParameter& param) {
         if (auto p = authorizationValue(ttag, param)) {
             return *p == expected_value;
@@ -89,7 +90,7 @@
 }
 
 template <TagType tag_type, Tag tag>
-bool contains(vector<KeyParameter>& set, TypedTag<tag_type, tag>) {
+bool contains(const vector<KeyParameter>& set, TypedTag<tag_type, tag>) {
     auto it = std::find_if(set.begin(), set.end(),
                            [&](const KeyParameter& param) { return param.tag == tag; });
     return (it != set.end());
@@ -4596,6 +4597,57 @@
     }
 }
 
+/*
+ * UsageCountLimitTest.TestSingleUseKeyAndRollbackResistance
+ *
+ * Verifies that when rollback resistance is supported by the KeyMint implementation with
+ * the secure hardware, the single use key with usage count limit tag = 1 must also be enforced
+ * in hardware.
+ */
+TEST_P(UsageCountLimitTest, TestSingleUseKeyAndRollbackResistance) {
+    if (SecLevel() == SecurityLevel::STRONGBOX) return;
+
+    auto error = GenerateKey(AuthorizationSetBuilder()
+                                     .RsaSigningKey(2048, 65537)
+                                     .Digest(Digest::NONE)
+                                     .Padding(PaddingMode::NONE)
+                                     .Authorization(TAG_NO_AUTH_REQUIRED)
+                                     .Authorization(TAG_ROLLBACK_RESISTANCE)
+                                     .SetDefaultValidity());
+    ASSERT_TRUE(error == ErrorCode::ROLLBACK_RESISTANCE_UNAVAILABLE || error == ErrorCode::OK);
+
+    if (error == ErrorCode::OK) {
+        // Rollback resistance is supported by KeyMint, verify it is enforced in hardware.
+        AuthorizationSet hardwareEnforced(SecLevelAuthorizations());
+        ASSERT_TRUE(hardwareEnforced.Contains(TAG_ROLLBACK_RESISTANCE));
+        ASSERT_EQ(ErrorCode::OK, DeleteKey());
+
+        // The KeyMint should also enforce single use key in hardware when it supports rollback
+        // resistance.
+        ASSERT_EQ(ErrorCode::OK, GenerateKey(AuthorizationSetBuilder()
+                                                     .Authorization(TAG_NO_AUTH_REQUIRED)
+                                                     .RsaSigningKey(1024, 65537)
+                                                     .NoDigestOrPadding()
+                                                     .Authorization(TAG_USAGE_COUNT_LIMIT, 1)
+                                                     .SetDefaultValidity()));
+
+        // Check the usage count limit tag appears in the hardware authorizations.
+        AuthorizationSet hardware_auths = HwEnforcedAuthorizations(key_characteristics_);
+        EXPECT_TRUE(hardware_auths.Contains(TAG_USAGE_COUNT_LIMIT, 1U))
+                << "key usage count limit " << 1U << " missing";
+
+        string message = "1234567890123456";
+        auto params = AuthorizationSetBuilder().NoDigestOrPadding();
+
+        // First usage of RSA key should work.
+        SignMessage(message, params);
+
+        // Usage count limit tag is enforced by hardware. After using the key, the key blob
+        // must be invalidated from secure storage (such as RPMB partition).
+        EXPECT_EQ(ErrorCode::INVALID_KEY_BLOB, Begin(KeyPurpose::SIGN, params));
+    }
+}
+
 INSTANTIATE_KEYMINT_AIDL_TEST(UsageCountLimitTest);
 
 typedef KeyMintAidlTestBase AddEntropyTest;
@@ -4645,7 +4697,8 @@
                                      .Digest(Digest::NONE)
                                      .Padding(PaddingMode::NONE)
                                      .Authorization(TAG_NO_AUTH_REQUIRED)
-                                     .Authorization(TAG_ROLLBACK_RESISTANCE));
+                                     .Authorization(TAG_ROLLBACK_RESISTANCE)
+                                     .SetDefaultValidity());
     ASSERT_TRUE(error == ErrorCode::ROLLBACK_RESISTANCE_UNAVAILABLE || error == ErrorCode::OK);
 
     // Delete must work if rollback protection is implemented
@@ -4678,7 +4731,8 @@
                                      .Digest(Digest::NONE)
                                      .Padding(PaddingMode::NONE)
                                      .Authorization(TAG_NO_AUTH_REQUIRED)
-                                     .Authorization(TAG_ROLLBACK_RESISTANCE));
+                                     .Authorization(TAG_ROLLBACK_RESISTANCE)
+                                     .SetDefaultValidity());
     ASSERT_TRUE(error == ErrorCode::ROLLBACK_RESISTANCE_UNAVAILABLE || error == ErrorCode::OK);
 
     // Delete must work if rollback protection is implemented
@@ -4961,6 +5015,99 @@
 
 INSTANTIATE_KEYMINT_AIDL_TEST(KeyAgreementTest);
 
+typedef KeyMintAidlTestBase EarlyBootKeyTest;
+
+TEST_P(EarlyBootKeyTest, CreateEarlyBootKeys) {
+    auto [aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData] =
+            CreateTestKeys(TAG_EARLY_BOOT_ONLY, ErrorCode::OK);
+
+    CheckedDeleteKey(&aesKeyData.blob);
+    CheckedDeleteKey(&hmacKeyData.blob);
+    CheckedDeleteKey(&rsaKeyData.blob);
+    CheckedDeleteKey(&ecdsaKeyData.blob);
+}
+
+// This is a more comprenhensive test, but it can only be run on a machine which is still in early
+// boot stage, which no proper Android device is by the time we can run VTS.  To use this,
+// un-disable it and modify vold to remove the call to earlyBootEnded().  Running the test will end
+// early boot, so you'll have to reboot between runs.
+TEST_P(EarlyBootKeyTest, DISABLED_FullTest) {
+    auto [aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData] =
+            CreateTestKeys(TAG_EARLY_BOOT_ONLY, ErrorCode::OK);
+    // TAG_EARLY_BOOT_ONLY should be in hw-enforced.
+    EXPECT_TRUE(HwEnforcedAuthorizations(aesKeyData.characteristics).Contains(TAG_EARLY_BOOT_ONLY));
+    EXPECT_TRUE(
+            HwEnforcedAuthorizations(hmacKeyData.characteristics).Contains(TAG_EARLY_BOOT_ONLY));
+    EXPECT_TRUE(HwEnforcedAuthorizations(rsaKeyData.characteristics).Contains(TAG_EARLY_BOOT_ONLY));
+    EXPECT_TRUE(
+            HwEnforcedAuthorizations(ecdsaKeyData.characteristics).Contains(TAG_EARLY_BOOT_ONLY));
+
+    // Should be able to use keys, since early boot has not ended
+    EXPECT_EQ(ErrorCode::OK, UseAesKey(aesKeyData.blob));
+    EXPECT_EQ(ErrorCode::OK, UseHmacKey(hmacKeyData.blob));
+    EXPECT_EQ(ErrorCode::OK, UseRsaKey(rsaKeyData.blob));
+    EXPECT_EQ(ErrorCode::OK, UseEcdsaKey(ecdsaKeyData.blob));
+
+    // End early boot
+    ErrorCode earlyBootResult = GetReturnErrorCode(keyMint().earlyBootEnded());
+    EXPECT_EQ(earlyBootResult, ErrorCode::OK);
+
+    // Should not be able to use already-created keys.
+    EXPECT_EQ(ErrorCode::EARLY_BOOT_ENDED, UseAesKey(aesKeyData.blob));
+    EXPECT_EQ(ErrorCode::EARLY_BOOT_ENDED, UseHmacKey(hmacKeyData.blob));
+    EXPECT_EQ(ErrorCode::EARLY_BOOT_ENDED, UseRsaKey(rsaKeyData.blob));
+    EXPECT_EQ(ErrorCode::EARLY_BOOT_ENDED, UseEcdsaKey(ecdsaKeyData.blob));
+
+    CheckedDeleteKey(&aesKeyData.blob);
+    CheckedDeleteKey(&hmacKeyData.blob);
+    CheckedDeleteKey(&rsaKeyData.blob);
+    CheckedDeleteKey(&ecdsaKeyData.blob);
+
+    // Should not be able to create new keys
+    std::tie(aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData) =
+            CreateTestKeys(TAG_EARLY_BOOT_ONLY, ErrorCode::EARLY_BOOT_ENDED);
+
+    CheckedDeleteKey(&aesKeyData.blob);
+    CheckedDeleteKey(&hmacKeyData.blob);
+    CheckedDeleteKey(&rsaKeyData.blob);
+    CheckedDeleteKey(&ecdsaKeyData.blob);
+}
+INSTANTIATE_KEYMINT_AIDL_TEST(EarlyBootKeyTest);
+
+typedef KeyMintAidlTestBase UnlockedDeviceRequiredTest;
+
+// This may be a problematic test.  It can't be run repeatedly without unlocking the device in
+// between runs... and on most test devices there are no enrolled credentials so it can't be
+// unlocked at all, meaning the only way to get the test to pass again on a properly-functioning
+// device is to reboot it.  For that reason, this is disabled by default.  It can be used as part of
+// a manual test process, which includes unlocking between runs, which is why it's included here.
+// Well, that and the fact that it's the only test we can do without also making calls into the
+// Gatekeeper HAL.  We haven't written any cross-HAL tests, and don't know what all of the
+// implications might be, so that may or may not be a solution.
+TEST_P(UnlockedDeviceRequiredTest, DISABLED_KeysBecomeUnusable) {
+    auto [aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData] =
+            CreateTestKeys(TAG_UNLOCKED_DEVICE_REQUIRED, ErrorCode::OK);
+
+    EXPECT_EQ(ErrorCode::OK, UseAesKey(aesKeyData.blob));
+    EXPECT_EQ(ErrorCode::OK, UseHmacKey(hmacKeyData.blob));
+    EXPECT_EQ(ErrorCode::OK, UseRsaKey(rsaKeyData.blob));
+    EXPECT_EQ(ErrorCode::OK, UseEcdsaKey(ecdsaKeyData.blob));
+
+    ErrorCode rc = GetReturnErrorCode(
+            keyMint().deviceLocked(false /* passwordOnly */, {} /* verificationToken */));
+    ASSERT_EQ(ErrorCode::OK, rc);
+    EXPECT_EQ(ErrorCode::DEVICE_LOCKED, UseAesKey(aesKeyData.blob));
+    EXPECT_EQ(ErrorCode::DEVICE_LOCKED, UseHmacKey(hmacKeyData.blob));
+    EXPECT_EQ(ErrorCode::DEVICE_LOCKED, UseRsaKey(rsaKeyData.blob));
+    EXPECT_EQ(ErrorCode::DEVICE_LOCKED, UseEcdsaKey(ecdsaKeyData.blob));
+
+    CheckedDeleteKey(&aesKeyData.blob);
+    CheckedDeleteKey(&hmacKeyData.blob);
+    CheckedDeleteKey(&rsaKeyData.blob);
+    CheckedDeleteKey(&ecdsaKeyData.blob);
+}
+INSTANTIATE_KEYMINT_AIDL_TEST(UnlockedDeviceRequiredTest);
+
 }  // namespace aidl::android::hardware::security::keymint::test
 
 int main(int argc, char** argv) {
diff --git a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/ISecureClock.aidl b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/ISecureClock.aidl
index c16b312..3778897 100644
--- a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/ISecureClock.aidl
+++ b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/ISecureClock.aidl
@@ -1,4 +1,17 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
@@ -20,5 +33,5 @@
 @VintfStability
 interface ISecureClock {
   android.hardware.security.secureclock.TimeStampToken generateTimeStamp(in long challenge);
-  const String TIME_STAMP_MAC_LABEL = "Time Verification";
+  const String TIME_STAMP_MAC_LABEL = "Auth Verification";
 }
diff --git a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/TimeStampToken.aidl b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/TimeStampToken.aidl
index 21eeb74..00a8bb2 100644
--- a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/TimeStampToken.aidl
+++ b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/TimeStampToken.aidl
@@ -1,4 +1,18 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/Timestamp.aidl b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/Timestamp.aidl
index f01fdc7..bebeb5c 100644
--- a/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/Timestamp.aidl
+++ b/security/secureclock/aidl/aidl_api/android.hardware.security.secureclock/current/android/hardware/security/secureclock/Timestamp.aidl
@@ -1,4 +1,18 @@
-///////////////////////////////////////////////////////////////////////////////
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *////////////////////////////////////////////////////////////////////////////////
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
diff --git a/security/secureclock/aidl/android/hardware/security/secureclock/ISecureClock.aidl b/security/secureclock/aidl/android/hardware/security/secureclock/ISecureClock.aidl
index 7d416dd..577dd8f 100644
--- a/security/secureclock/aidl/android/hardware/security/secureclock/ISecureClock.aidl
+++ b/security/secureclock/aidl/android/hardware/security/secureclock/ISecureClock.aidl
@@ -33,7 +33,7 @@
      * String used as context in the HMAC computation signing the generated time stamp.
      * See TimeStampToken.mac for details.
      */
-    const String TIME_STAMP_MAC_LABEL = "Time Verification";
+    const String TIME_STAMP_MAC_LABEL = "Auth Verification";
 
     /**
      * Generates an authenticated timestamp.
diff --git a/security/secureclock/aidl/android/hardware/security/secureclock/TimeStampToken.aidl b/security/secureclock/aidl/android/hardware/security/secureclock/TimeStampToken.aidl
index 3fb5860..dd95732 100644
--- a/security/secureclock/aidl/android/hardware/security/secureclock/TimeStampToken.aidl
+++ b/security/secureclock/aidl/android/hardware/security/secureclock/TimeStampToken.aidl
@@ -39,18 +39,20 @@
      * 32-byte HMAC-SHA256 of the above values, computed as:
      *
      *    HMAC(H,
-     *         ISecureClock.TIME_STAMP_MAC_LABEL || challenge || timestamp)
+     *         ISecureClock.TIME_STAMP_MAC_LABEL || challenge || timestamp || securityLevel )
      *
      * where:
      *
      *   ``ISecureClock.TIME_STAMP_MAC_LABEL'' is a sting constant defined in ISecureClock.aidl.
      *
-     *   ``H'' is the shared HMAC key (see computeSharedHmac() in ISharedHmacSecret).
+     *   ``H'' is the shared HMAC key (see computeSharedHmac() in ISharedSecret).
      *
      *   ``||'' represents concatenation
      *
      * The representation of challenge and timestamp is as 64-bit unsigned integers in big-endian
-     * order.  securityLevel is represented as a 32-bit unsigned integer in big-endian order.
+     * order. SecurityLevel is represented as a 32-bit unsigned integer in big-endian order as
+     * described in android.hardware.security.keymint.SecurityLevel. It represents the security
+     * level of the secure clock environment.
      */
     byte[] mac;
 }
diff --git a/security/secureclock/aidl/vts/functional/Android.bp b/security/secureclock/aidl/vts/functional/Android.bp
new file mode 100644
index 0000000..30244eb
--- /dev/null
+++ b/security/secureclock/aidl/vts/functional/Android.bp
@@ -0,0 +1,43 @@
+//
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsAidlSecureClockTargetTest",
+    defaults: [
+        "VtsHalTargetTestDefaults",
+        "use_libaidlvintf_gtest_helper_static",
+    ],
+    cflags: [
+        "-Wall",
+        "-Wextra",
+    ],
+    srcs: [
+        "SecureClockAidlTest.cpp",
+    ],
+    shared_libs: [
+        "libbinder_ndk",
+        "libcrypto",
+        "libkeymint",
+    ],
+    static_libs: [
+        "android.hardware.security.keymint-unstable-ndk_platform",
+        "android.hardware.security.secureclock-unstable-ndk_platform",
+    ],
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
+}
diff --git a/security/secureclock/aidl/vts/functional/AndroidTest.xml b/security/secureclock/aidl/vts/functional/AndroidTest.xml
new file mode 100644
index 0000000..4861c7c
--- /dev/null
+++ b/security/secureclock/aidl/vts/functional/AndroidTest.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs VtsAidlSecureClockTargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer">
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push"
+                value="VtsAidlSecureClockTargetTest->/data/local/tmp/VtsAidlSecureClockTargetTest" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsAidlSecureClockTargetTest" />
+        <option name="native-test-timeout" value="900000"/>
+    </test>
+</configuration>
diff --git a/security/secureclock/aidl/vts/functional/SecureClockAidlTest.cpp b/security/secureclock/aidl/vts/functional/SecureClockAidlTest.cpp
new file mode 100644
index 0000000..9ca1ee8
--- /dev/null
+++ b/security/secureclock/aidl/vts/functional/SecureClockAidlTest.cpp
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "secureclock_test"
+#include <android-base/logging.h>
+
+#include <aidl/Gtest.h>
+#include <aidl/Vintf.h>
+#include <aidl/android/hardware/security/keymint/ErrorCode.h>
+#include <aidl/android/hardware/security/secureclock/ISecureClock.h>
+#include <android/binder_manager.h>
+#include <binder/ProcessState.h>
+#include <gtest/gtest.h>
+#include <vector>
+
+namespace aidl::android::hardware::security::secureclock::test {
+using Status = ::ndk::ScopedAStatus;
+using ::aidl::android::hardware::security::keymint::ErrorCode;
+using ::std::shared_ptr;
+using ::std::string;
+using ::std::vector;
+
+class SecureClockAidlTest : public ::testing::TestWithParam<string> {
+  public:
+    struct TimestampTokenResult {
+        ErrorCode error;
+        TimeStampToken token;
+    };
+
+    TimestampTokenResult getTimestampToken(int64_t in_challenge) {
+        TimestampTokenResult result;
+        result.error =
+                GetReturnErrorCode(secureClock_->generateTimeStamp(in_challenge, &result.token));
+        return result;
+    }
+
+    uint64_t getTime() {
+        struct timespec timespec;
+        EXPECT_EQ(0, clock_gettime(CLOCK_BOOTTIME, &timespec));
+        return timespec.tv_sec * 1000 + timespec.tv_nsec / 1000000;
+    }
+
+    int sleep_ms(uint32_t milliseconds) {
+        struct timespec sleep_time = {static_cast<time_t>(milliseconds / 1000),
+                                      static_cast<long>(milliseconds % 1000) * 1000000};
+        while (sleep_time.tv_sec || sleep_time.tv_nsec) {
+            if (nanosleep(&sleep_time /* to wait */,
+                          &sleep_time /* remaining (on interrruption) */) == 0) {
+                sleep_time = {};
+            } else {
+                if (errno != EINTR) return errno;
+            }
+        }
+        return 0;
+    }
+
+    ErrorCode GetReturnErrorCode(const Status& result) {
+        if (result.isOk()) return ErrorCode::OK;
+
+        if (result.getExceptionCode() == EX_SERVICE_SPECIFIC) {
+            return static_cast<ErrorCode>(result.getServiceSpecificError());
+        }
+
+        return ErrorCode::UNKNOWN_ERROR;
+    }
+
+    void InitializeSecureClock(std::shared_ptr<ISecureClock> secureClock) {
+        ASSERT_NE(secureClock, nullptr);
+        secureClock_ = secureClock;
+    }
+
+    ISecureClock& secureClock() { return *secureClock_; }
+
+    static vector<string> build_params() {
+        auto params = ::android::getAidlHalInstanceNames(ISecureClock::descriptor);
+        return params;
+    }
+
+    void SetUp() override {
+        if (AServiceManager_isDeclared(GetParam().c_str())) {
+            ::ndk::SpAIBinder binder(AServiceManager_waitForService(GetParam().c_str()));
+            InitializeSecureClock(ISecureClock::fromBinder(binder));
+        } else {
+            InitializeSecureClock(nullptr);
+        }
+    }
+
+    void TearDown() override {}
+
+  private:
+    std::shared_ptr<ISecureClock> secureClock_;
+};
+
+/*
+ * The precise capabilities required to generate TimeStampToken will vary depending on the specific
+ * vendor implementations. The only thing we really can test is that tokens can be created by
+ * secureclock services, and that the timestamps increase as expected.
+ */
+TEST_P(SecureClockAidlTest, TestCreation) {
+    auto result1 = getTimestampToken(1 /* challenge */);
+    auto result1_time = getTime();
+    EXPECT_EQ(ErrorCode::OK, result1.error);
+    EXPECT_EQ(1U, result1.token.challenge);
+    EXPECT_GT(result1.token.timestamp.milliSeconds, 0U);
+
+    unsigned long time_to_sleep = 200;
+    sleep_ms(time_to_sleep);
+
+    auto result2 = getTimestampToken(2 /* challenge */);
+    auto result2_time = getTime();
+    EXPECT_EQ(ErrorCode::OK, result2.error);
+    EXPECT_EQ(2U, result2.token.challenge);
+    EXPECT_GT(result2.token.timestamp.milliSeconds, 0U);
+
+    auto host_time_delta = result2_time - result1_time;
+
+    EXPECT_GE(host_time_delta, time_to_sleep)
+            << "We slept for " << time_to_sleep << " ms, the clock must have advanced by that much";
+    EXPECT_LE(host_time_delta, time_to_sleep + 100)
+            << "The getTimestampToken call took " << (host_time_delta - time_to_sleep)
+            << " ms?  That's awful!";
+    EXPECT_GE(result2.token.timestamp.milliSeconds, result1.token.timestamp.milliSeconds);
+    unsigned long km_time_delta =
+            result2.token.timestamp.milliSeconds - result1.token.timestamp.milliSeconds;
+    // 20 ms of slop just to avoid test flakiness.
+    EXPECT_LE(host_time_delta, km_time_delta + 20);
+    EXPECT_LE(km_time_delta, host_time_delta + 20);
+    ASSERT_EQ(result1.token.mac.size(), result2.token.mac.size());
+    ASSERT_NE(0,
+              memcmp(result1.token.mac.data(), result2.token.mac.data(), result1.token.mac.size()));
+}
+
+/*
+ * Test that the mac changes when the time stamp changes. This is does not guarantee that the time
+ * stamp is included in the mac but on failure we know that it is not. Other than in the test
+ * case above we call getTimestampToken with the exact same set of parameters.
+ */
+TEST_P(SecureClockAidlTest, MacChangesOnChangingTimestamp) {
+    auto result1 = getTimestampToken(0 /* challenge */);
+    auto result1_time = getTime();
+    EXPECT_EQ(ErrorCode::OK, result1.error);
+    EXPECT_EQ(0U, result1.token.challenge);
+    EXPECT_GT(result1.token.timestamp.milliSeconds, 0U);
+
+    unsigned long time_to_sleep = 200;
+    sleep_ms(time_to_sleep);
+
+    auto result2 = getTimestampToken(1 /* challenge */);
+    auto result2_time = getTime();
+    EXPECT_EQ(ErrorCode::OK, result2.error);
+    EXPECT_EQ(1U, result2.token.challenge);
+    EXPECT_GT(result2.token.timestamp.milliSeconds, 0U);
+
+    auto host_time_delta = result2_time - result1_time;
+
+    EXPECT_GE(host_time_delta, time_to_sleep)
+            << "We slept for " << time_to_sleep << " ms, the clock must have advanced by that much";
+    EXPECT_LE(host_time_delta, time_to_sleep + 100)
+            << "The getTimestampToken call took " << (host_time_delta - time_to_sleep)
+            << " ms?  That's awful!";
+
+    EXPECT_GE(result2.token.timestamp.milliSeconds, result1.token.timestamp.milliSeconds);
+    unsigned long km_time_delta =
+            result2.token.timestamp.milliSeconds - result1.token.timestamp.milliSeconds;
+
+    EXPECT_LE(host_time_delta, km_time_delta + 20);
+    EXPECT_LE(km_time_delta, host_time_delta + 20);
+    ASSERT_EQ(result1.token.mac.size(), result2.token.mac.size());
+    ASSERT_NE(0,
+              memcmp(result1.token.mac.data(), result2.token.mac.data(), result1.token.mac.size()));
+}
+
+INSTANTIATE_TEST_SUITE_P(PerInstance, SecureClockAidlTest,
+                         testing::ValuesIn(SecureClockAidlTest::build_params()),
+                         ::android::PrintInstanceNameToString);
+}  // namespace aidl::android::hardware::security::secureclock::test
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}
\ No newline at end of file
diff --git a/security/sharedsecret/aidl/vts/functional/Android.bp b/security/sharedsecret/aidl/vts/functional/Android.bp
new file mode 100644
index 0000000..56ab317
--- /dev/null
+++ b/security/sharedsecret/aidl/vts/functional/Android.bp
@@ -0,0 +1,43 @@
+//
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsAidlSharedSecretTargetTest",
+    defaults: [
+        "VtsHalTargetTestDefaults",
+        "use_libaidlvintf_gtest_helper_static",
+    ],
+    srcs: [
+        "SharedSecretAidlTest.cpp",
+    ],
+    cflags: [
+        "-Wall",
+        "-Wextra",
+    ],
+    shared_libs: [
+        "libbinder_ndk",
+        "libcrypto",
+        "libkeymint",
+    ],
+    static_libs: [
+        "android.hardware.security.keymint-unstable-ndk_platform",
+        "android.hardware.security.sharedsecret-unstable-ndk_platform",
+    ],
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
+}
diff --git a/security/sharedsecret/aidl/vts/functional/AndroidTest.xml b/security/sharedsecret/aidl/vts/functional/AndroidTest.xml
new file mode 100644
index 0000000..c6697bc
--- /dev/null
+++ b/security/sharedsecret/aidl/vts/functional/AndroidTest.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Runs VtsAidlSharedSecretTargetTest.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-native" />
+
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer">
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+        <option name="cleanup" value="true" />
+        <option name="push"
+                value="VtsAidlSharedSecretTargetTest->/data/local/tmp/VtsAidlSharedSecretTargetTest" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.GTest" >
+        <option name="native-test-device-path" value="/data/local/tmp" />
+        <option name="module-name" value="VtsAidlSharedSecretTargetTest" />
+        <option name="native-test-timeout" value="900000"/>
+    </test>
+</configuration>
diff --git a/security/sharedsecret/aidl/vts/functional/SharedSecretAidlTest.cpp b/security/sharedsecret/aidl/vts/functional/SharedSecretAidlTest.cpp
new file mode 100644
index 0000000..83f6ef3
--- /dev/null
+++ b/security/sharedsecret/aidl/vts/functional/SharedSecretAidlTest.cpp
@@ -0,0 +1,268 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "sharedsecret_test"
+#include <android-base/logging.h>
+
+#include <aidl/Vintf.h>
+#include <aidl/android/hardware/security/keymint/ErrorCode.h>
+#include <aidl/android/hardware/security/sharedsecret/ISharedSecret.h>
+#include <android/binder_manager.h>
+#include <gtest/gtest.h>
+#include <vector>
+
+namespace aidl::android::hardware::security::sharedsecret::test {
+using ::aidl::android::hardware::security::keymint::ErrorCode;
+using ::std::shared_ptr;
+using ::std::vector;
+using Status = ::ndk::ScopedAStatus;
+
+class SharedSecretAidlTest : public ::testing::Test {
+  public:
+    struct GetParamsResult {
+        ErrorCode error;
+        SharedSecretParameters params;
+        auto tie() { return std::tie(error, params); }
+    };
+
+    struct ComputeResult {
+        ErrorCode error;
+        vector<uint8_t> sharing_check;
+        auto tie() { return std::tie(error, sharing_check); }
+    };
+
+    GetParamsResult getSharedSecretParameters(shared_ptr<ISharedSecret>& sharedSecret) {
+        SharedSecretParameters params;
+        auto error = GetReturnErrorCode(sharedSecret->getSharedSecretParameters(&params));
+        EXPECT_EQ(ErrorCode::OK, error);
+        GetParamsResult result;
+        result.tie() = std::tie(error, params);
+        return result;
+    }
+
+    vector<SharedSecretParameters> getAllSharedSecretParameters() {
+        vector<SharedSecretParameters> paramsVec;
+        for (auto& sharedSecret : allSharedSecrets_) {
+            auto result = getSharedSecretParameters(sharedSecret);
+            EXPECT_EQ(ErrorCode::OK, result.error);
+            if (result.error == ErrorCode::OK) paramsVec.push_back(std::move(result.params));
+        }
+        return paramsVec;
+    }
+
+    ComputeResult computeSharedSecret(shared_ptr<ISharedSecret>& sharedSecret,
+                                      const vector<SharedSecretParameters>& params) {
+        std::vector<uint8_t> sharingCheck;
+        auto error = GetReturnErrorCode(sharedSecret->computeSharedSecret(params, &sharingCheck));
+        ComputeResult result;
+        result.tie() = std::tie(error, sharingCheck);
+        return result;
+    }
+
+    vector<ComputeResult> computeAllSharedSecrets(const vector<SharedSecretParameters>& params) {
+        vector<ComputeResult> result;
+        for (auto& sharedSecret : allSharedSecrets_) {
+            result.push_back(computeSharedSecret(sharedSecret, params));
+        }
+        return result;
+    }
+
+    vector<vector<uint8_t>> copyNonces(const vector<SharedSecretParameters>& paramsVec) {
+        vector<vector<uint8_t>> nonces;
+        for (auto& param : paramsVec) {
+            nonces.push_back(param.nonce);
+        }
+        return nonces;
+    }
+
+    void verifyResponses(const vector<uint8_t>& expected, const vector<ComputeResult>& responses) {
+        for (auto& response : responses) {
+            EXPECT_EQ(ErrorCode::OK, response.error);
+            EXPECT_EQ(expected, response.sharing_check) << "Sharing check values should match.";
+        }
+    }
+
+    ErrorCode GetReturnErrorCode(const Status& result) {
+        if (result.isOk()) return ErrorCode::OK;
+        if (result.getExceptionCode() == EX_SERVICE_SPECIFIC) {
+            return static_cast<ErrorCode>(result.getServiceSpecificError());
+        }
+        return ErrorCode::UNKNOWN_ERROR;
+    }
+
+    static shared_ptr<ISharedSecret> getSharedSecretService(const char* name) {
+        if (AServiceManager_isDeclared(name)) {
+            ::ndk::SpAIBinder binder(AServiceManager_waitForService(name));
+            return ISharedSecret::fromBinder(binder);
+        }
+        return nullptr;
+    }
+
+    const vector<shared_ptr<ISharedSecret>>& allSharedSecrets() { return allSharedSecrets_; }
+
+    static void SetUpTestCase() {
+        if (allSharedSecrets_.empty()) {
+            auto names = ::android::getAidlHalInstanceNames(ISharedSecret::descriptor);
+            for (const auto& name : names) {
+                auto servicePtr = getSharedSecretService(name.c_str());
+                if (servicePtr != nullptr) allSharedSecrets_.push_back(std::move(servicePtr));
+            }
+        }
+    }
+    static void TearDownTestCase() {}
+    void SetUp() override {}
+    void TearDown() override {}
+
+  private:
+    static vector<shared_ptr<ISharedSecret>> allSharedSecrets_;
+};
+
+vector<shared_ptr<ISharedSecret>> SharedSecretAidlTest::allSharedSecrets_;
+
+TEST_F(SharedSecretAidlTest, GetParameters) {
+    auto sharedSecrets = allSharedSecrets();
+    for (auto sharedSecret : sharedSecrets) {
+        auto result1 = getSharedSecretParameters(sharedSecret);
+        EXPECT_EQ(ErrorCode::OK, result1.error);
+        auto result2 = getSharedSecretParameters(sharedSecret);
+        EXPECT_EQ(ErrorCode::OK, result2.error);
+        ASSERT_EQ(result1.params.seed, result2.params.seed)
+                << "A given shared secret service should always return the same seed.";
+        ASSERT_EQ(result1.params.nonce, result2.params.nonce)
+                << "A given shared secret service should always return the same nonce until "
+                   "restart.";
+    }
+}
+
+TEST_F(SharedSecretAidlTest, ComputeSharedSecret) {
+    auto params = getAllSharedSecretParameters();
+    ASSERT_EQ(allSharedSecrets().size(), params.size())
+            << "One or more shared secret services failed to provide parameters.";
+    auto nonces = copyNonces(params);
+    EXPECT_EQ(allSharedSecrets().size(), nonces.size());
+    std::sort(nonces.begin(), nonces.end());
+    std::unique(nonces.begin(), nonces.end());
+    EXPECT_EQ(allSharedSecrets().size(), nonces.size());
+
+    auto responses = computeAllSharedSecrets(params);
+    ASSERT_GT(responses.size(), 0U);
+    verifyResponses(responses[0].sharing_check, responses);
+
+    // Do it a second time.  Should get the same answers.
+    params = getAllSharedSecretParameters();
+    ASSERT_EQ(allSharedSecrets().size(), params.size())
+            << "One or more shared secret services failed to provide parameters.";
+
+    responses = computeAllSharedSecrets(params);
+    ASSERT_GT(responses.size(), 0U);
+    ASSERT_EQ(32U, responses[0].sharing_check.size());
+    verifyResponses(responses[0].sharing_check, responses);
+}
+
+template <class F>
+class final_action {
+  public:
+    explicit final_action(F f) : f_(std::move(f)) {}
+    ~final_action() { f_(); }
+
+  private:
+    F f_;
+};
+
+template <class F>
+inline final_action<F> finally(const F& f) {
+    return final_action<F>(f);
+}
+
+TEST_F(SharedSecretAidlTest, ComputeSharedSecretCorruptNonce) {
+    auto fixup_hmac = finally([&]() { computeAllSharedSecrets(getAllSharedSecretParameters()); });
+
+    auto params = getAllSharedSecretParameters();
+    ASSERT_EQ(allSharedSecrets().size(), params.size())
+            << "One or more shared secret services failed to provide parameters.";
+
+    // All should be well in the normal case
+    auto responses = computeAllSharedSecrets(params);
+
+    ASSERT_GT(responses.size(), 0U);
+    vector<uint8_t> correct_response = responses[0].sharing_check;
+    verifyResponses(correct_response, responses);
+
+    // Pick a random param, a random byte within the param's nonce, and a random bit within
+    // the byte.  Flip that bit.
+    size_t param_to_tweak = rand() % params.size();
+    uint8_t byte_to_tweak = rand() % sizeof(params[param_to_tweak].nonce);
+    uint8_t bit_to_tweak = rand() % 8;
+    params[param_to_tweak].nonce[byte_to_tweak] ^= (1 << bit_to_tweak);
+
+    responses = computeAllSharedSecrets(params);
+    for (size_t i = 0; i < responses.size(); ++i) {
+        if (i == param_to_tweak) {
+            EXPECT_EQ(ErrorCode::INVALID_ARGUMENT, responses[i].error)
+                    << "Shared secret service that provided tweaked param should fail to compute "
+                       "shared secret";
+        } else {
+            EXPECT_EQ(ErrorCode::OK, responses[i].error) << "Others should succeed";
+            EXPECT_NE(correct_response, responses[i].sharing_check)
+                    << "Others should calculate a different shared secret, due to the tweaked "
+                       "nonce.";
+        }
+    }
+}
+
+TEST_F(SharedSecretAidlTest, ComputeSharedSecretCorruptSeed) {
+    auto fixup_hmac = finally([&]() { computeAllSharedSecrets(getAllSharedSecretParameters()); });
+    auto params = getAllSharedSecretParameters();
+    ASSERT_EQ(allSharedSecrets().size(), params.size())
+            << "One or more shared secret service failed to provide parameters.";
+
+    // All should be well in the normal case
+    auto responses = computeAllSharedSecrets(params);
+
+    ASSERT_GT(responses.size(), 0U);
+    vector<uint8_t> correct_response = responses[0].sharing_check;
+    verifyResponses(correct_response, responses);
+
+    // Pick a random param and modify the seed.  We just increase the seed length by 1.  It doesn't
+    // matter what value is in the additional byte; it changes the seed regardless.
+    auto param_to_tweak = rand() % params.size();
+    auto& to_tweak = params[param_to_tweak].seed;
+    ASSERT_TRUE(to_tweak.size() == 32 || to_tweak.size() == 0);
+    if (!to_tweak.size()) {
+        to_tweak.resize(32);  // Contents don't matter; a little randomization is nice.
+    }
+    to_tweak[0]++;
+
+    responses = computeAllSharedSecrets(params);
+    for (size_t i = 0; i < responses.size(); ++i) {
+        if (i == param_to_tweak) {
+            EXPECT_EQ(ErrorCode::INVALID_ARGUMENT, responses[i].error)
+                    << "Shared secret service that provided tweaked param should fail to compute "
+                       "shared secret";
+        } else {
+            EXPECT_EQ(ErrorCode::OK, responses[i].error) << "Others should succeed";
+            EXPECT_NE(correct_response, responses[i].sharing_check)
+                    << "Others should calculate a different shared secret, due to the tweaked "
+                       "nonce.";
+        }
+    }
+}
+}  // namespace aidl::android::hardware::security::sharedsecret::test
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}
diff --git a/usb/1.3/Android.bp b/usb/1.3/Android.bp
new file mode 100644
index 0000000..17367d3
--- /dev/null
+++ b/usb/1.3/Android.bp
@@ -0,0 +1,16 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.usb@1.3",
+    root: "android.hardware",
+    srcs: [
+        "IUsb.hal",
+    ],
+    interfaces: [
+        "android.hardware.usb@1.0",
+        "android.hardware.usb@1.1",
+        "android.hardware.usb@1.2",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
diff --git a/usb/1.3/IUsb.hal b/usb/1.3/IUsb.hal
new file mode 100644
index 0000000..3d1d380
--- /dev/null
+++ b/usb/1.3/IUsb.hal
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.usb@1.3;
+
+import android.hardware.usb@1.2::IUsb;
+
+interface IUsb extends @1.2::IUsb {
+    /**
+     * This function is used to enable/disable USB controller when some
+     * scenarios need. This function can stop and restore USB data signaling.
+     *
+     * @param enable true Enable USB data signaling.
+     *               false Disable USB data signaling.
+     * @return true enable or disable USB data successfully
+     *         false if something wrong
+     */
+    enableUsbDataSignal(bool enable) generates(bool result);
+};
diff --git a/usb/1.3/vts/OWNERS b/usb/1.3/vts/OWNERS
new file mode 100644
index 0000000..a6a1e54
--- /dev/null
+++ b/usb/1.3/vts/OWNERS
@@ -0,0 +1,2 @@
+albertccwang@google.com
+badhri@google.com
diff --git a/usb/1.3/vts/functional/Android.bp b/usb/1.3/vts/functional/Android.bp
new file mode 100644
index 0000000..b62bb9d
--- /dev/null
+++ b/usb/1.3/vts/functional/Android.bp
@@ -0,0 +1,31 @@
+//
+// Copyright (C) 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_test {
+    name: "VtsHalUsbV1_3TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalUsbV1_3TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.usb@1.0",
+        "android.hardware.usb@1.1",
+        "android.hardware.usb@1.2",
+        "android.hardware.usb@1.3",
+    ],
+    test_suites: [
+        "general-tests",
+        "vts",
+    ],
+}
diff --git a/usb/1.3/vts/functional/VtsHalUsbV1_3TargetTest.cpp b/usb/1.3/vts/functional/VtsHalUsbV1_3TargetTest.cpp
new file mode 100644
index 0000000..ed35d42
--- /dev/null
+++ b/usb/1.3/vts/functional/VtsHalUsbV1_3TargetTest.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "VtsHalUsbV1_3TargetTest"
+#include <android-base/logging.h>
+
+#include <android/hardware/usb/1.3/IUsb.h>
+
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
+
+#include <log/log.h>
+#include <stdlib.h>
+#include <condition_variable>
+
+using ::android::sp;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::usb::V1_0::Status;
+using ::android::hardware::usb::V1_3::IUsb;
+using ::android::hidl::base::V1_0::IBase;
+
+// The main test class for the USB hidl HAL
+class UsbHidlTest : public ::testing::TestWithParam<std::string> {
+  public:
+    virtual void SetUp() override {
+        ALOGI(__FUNCTION__);
+        usb = IUsb::getService(GetParam());
+        ASSERT_NE(usb, nullptr);
+    }
+
+    virtual void TearDown() override { ALOGI("Teardown"); }
+
+    // USB hidl hal Proxy
+    sp<IUsb> usb;
+};
+
+/*
+ * Check to see if enable usb data signal succeeds.
+ * HAL service should call enableUsbDataSignal.
+ */
+TEST_P(UsbHidlTest, enableUsbDataSignal) {
+    Return<bool> ret = usb->enableUsbDataSignal(true);
+    ASSERT_TRUE(ret.isOk());
+}
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(UsbHidlTest);
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, UsbHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IUsb::descriptor)),
+        android::hardware::PrintInstanceNameToString);