diff --git a/audio/common/6.0/types.hal b/audio/common/6.0/types.hal
index 0c97c36..fa2f3a9 100644
--- a/audio/common/6.0/types.hal
+++ b/audio/common/6.0/types.hal
@@ -156,6 +156,11 @@
 @export(name="audio_session_t", value_prefix="AUDIO_SESSION_")
 enum AudioSessionConsts : int32_t {
     /**
+     * Session for effects attached to a particular sink or source audio device
+     * (e.g an effect only applied to a speaker)
+     */
+    DEVICE = -2,
+    /**
      * Session for effects attached to a particular output stream
      * (value must be less than 0)
      */
diff --git a/automotive/can/1.0/default/service.cpp b/automotive/can/1.0/default/service.cpp
index 7ef44fc..ebc2f8c 100644
--- a/automotive/can/1.0/default/service.cpp
+++ b/automotive/can/1.0/default/service.cpp
@@ -32,8 +32,8 @@
     configureRpcThreadpool(16, true);
     LOG(DEBUG) << "CAN controller service starting...";
 
-    CanController canController;
-    if (canController.registerAsService("socketcan") != OK) {
+    sp<CanController> canController(new CanController);
+    if (canController->registerAsService("socketcan") != OK) {
         LOG(FATAL) << "Failed to register CAN controller";
         return;
     }
diff --git a/current.txt b/current.txt
index 37e0640..c716c54 100644
--- a/current.txt
+++ b/current.txt
@@ -593,7 +593,7 @@
 2df5d5866b37776f25079c0e54b54350a2abe4e025a59c9e02a7d3abe8ca00e8 android.hardware.audio@6.0::IStreamIn
 78e4138cc8307c11fc777c3bd376e581ba4ba48196b05ca1d7cdfa515c87b48a android.hardware.audio@6.0::IStreamOut
 997fdaad7a9d17ee7e01feb7031a753e2365e72ad30b11d950e9183fabdf3844 android.hardware.audio@6.0::IStreamOutCallback
-7cc6bedbecf4c1a348c99d3f69e409ff815b90a5abf0781b054e99567fcb5c8e android.hardware.audio.common@6.0::types
+0b291ebd7e94dd1cfaadd41a8b9a80bc9389bbb76f5ad5b3df94db5fe7faea9d android.hardware.audio.common@6.0::types
 817930d58412d662cb45e641c50cb62c727e4a3e3ffe7029a53cad9677b97d58 android.hardware.audio.effect@6.0::types
 525bec6b44f1103869c269a128d51b8dccd73af5340ba863c8886c68357c7faf android.hardware.audio.effect@6.0::IAcousticEchoCancelerEffect
 8d76bbe3719d051a8e9a1dcf9244f37f5b0a491feb249fa48391edf7cb4f3131 android.hardware.audio.effect@6.0::IAutomaticGainControlEffect
@@ -619,8 +619,9 @@
 4d85e814f94949dae4dc6cb82bbd7d6bb24ffafda6ddb2eac928d2a4fc2e21ce android.hardware.cas@1.2::types
 66931c2506fbb5af61f20138cb05e0a09e7bf67d6964c231d27c648933bb33ec android.hardware.drm@1.3::ICryptoFactory
 994d08ab27d613022c258a9ec48cece7adf2a305e92df5d76ef923e2c6665f64 android.hardware.drm@1.3::IDrmFactory
-1bd8028b974bf1d65cfa102196a2b008afc5d42fe73fed2cb94fa7533d07f581 android.hardware.gnss@2.1::IGnss
+3dacec7801968e1e4479724dc0180442d9e915466bff051f80996266b1a51c2c android.hardware.gnss@2.1::IGnss
 ba62e1e8993bfb9f27fa04816fa0f2241ae2d01edfa3d0c04182e2e5de80045c android.hardware.gnss@2.1::IGnssCallback
+ccdf3c0fb2c02a6d4dc57afb276c3497ae8172b80b00ebc0bf8a0238dd38b01d android.hardware.gnss@2.1::IGnssConfiguration
 5a125c49ca83629e22afc8c39e865509343bfa2c38f0baea9a186bbac103492d android.hardware.gnss@2.1::IGnssMeasurement
 0bfb291708dd4a7c6ec6b9883e2b8592357edde8d7e962ef83918e4a2154ce69 android.hardware.gnss@2.1::IGnssMeasurementCallback
 ce8dbe76eb9ee94b46ef98f725be992e760a5751073d4f4912484026541371f3 android.hardware.health@2.1::IHealth
@@ -641,8 +642,8 @@
 619fc9839ec6e369cfa9b28e3e9412e6885720ff8f9b5750c1b6ffb905120391 android.hardware.wifi.supplicant@1.3::ISupplicantStaIfaceCallback
 c9273429fcf98d797d3bb07fdba6f1be95bf960f9255cde169fd1ca4db85f856 android.hardware.wifi.supplicant@1.3::ISupplicantStaNetwork
 9b0a3ab6f4f74b971ed094426d8a443e29b512ff03e1ab50c07156396cdb2483 android.hardware.wifi.supplicant@1.3::types
-35cd6586225912718c599421606d69260707e43732d874f2064e28de45c87fac android.hardware.radio@1.5::types
-3f1e2410d9bed4e7d41c6a589fe3a7943bc904b0066e40e0199a7c58427ac4e9 android.hardware.radio@1.5::IRadio
+eaf870a7439838c66127a74e1896c4a2346979c116eb1931785ebb4d353230ae android.hardware.radio@1.5::types
+584001c25a16e3a29d496cff28dee690833cd2bda5376febe01cecd476ce876f android.hardware.radio@1.5::IRadio
 3afac66f21a33bc9c4b80481c7d5540038348651d9a7d8af64ea13610af138da android.hardware.radio@1.5::IRadioIndication
 caf00e0d942b77b17d7061b38de11e5b19e1da90d4818434cb4916ba89e30686 android.hardware.radio@1.5::IRadioResponse
 55f0a15642869ec98a55ea0a5ac049d3e1a6245ff7750deb6bcb7182057eee83 android.hardware.radio.config@1.3::types
diff --git a/gnss/1.1/vts/functional/gnss_hal_test.cpp b/gnss/1.1/vts/functional/gnss_hal_test.cpp
index 2c8a7b1..b87f558 100644
--- a/gnss/1.1/vts/functional/gnss_hal_test.cpp
+++ b/gnss/1.1/vts/functional/gnss_hal_test.cpp
@@ -175,6 +175,48 @@
     return hasGnssHalVersion_1_1 && !hasGnssHalVersion_2_0;
 }
 
+GnssConstellationType GnssHalTest::startLocationAndGetNonGpsConstellation() {
+    const int kLocationsToAwait = 3;
+
+    gnss_cb_->location_cbq_.reset();
+    StartAndCheckLocations(kLocationsToAwait);
+    const int location_called_count = gnss_cb_->location_cbq_.calledCount();
+
+    // Tolerate 1 less sv status to handle edge cases in reporting.
+    int sv_status_cbq_size = gnss_cb_->sv_status_cbq_.size();
+    EXPECT_GE(sv_status_cbq_size + 1, kLocationsToAwait);
+    ALOGD("Observed %d GnssSvStatus, while awaiting %d Locations (%d received)", sv_status_cbq_size,
+          kLocationsToAwait, location_called_count);
+
+    // Find first non-GPS constellation to blacklist
+    const int kGnssSvStatusTimeout = 2;
+    GnssConstellationType constellation_to_blacklist = GnssConstellationType::UNKNOWN;
+    for (int i = 0; i < sv_status_cbq_size; ++i) {
+        IGnssCallback::GnssSvStatus gnss_sv_status;
+        gnss_cb_->sv_status_cbq_.retrieve(gnss_sv_status, kGnssSvStatusTimeout);
+        for (uint32_t iSv = 0; iSv < gnss_sv_status.numSvs; iSv++) {
+            const auto& gnss_sv = gnss_sv_status.gnssSvList[iSv];
+            if ((gnss_sv.svFlag & IGnssCallback::GnssSvFlags::USED_IN_FIX) &&
+                (gnss_sv.constellation != GnssConstellationType::UNKNOWN) &&
+                (gnss_sv.constellation != GnssConstellationType::GPS)) {
+                // found a non-GPS constellation
+                constellation_to_blacklist = gnss_sv.constellation;
+                break;
+            }
+        }
+        if (constellation_to_blacklist != GnssConstellationType::UNKNOWN) {
+            break;
+        }
+    }
+
+    if (constellation_to_blacklist == GnssConstellationType::UNKNOWN) {
+        ALOGI("No non-GPS constellations found, constellation blacklist test less effective.");
+        // Proceed functionally to blacklist something.
+        constellation_to_blacklist = GnssConstellationType::GLONASS;
+    }
+    return constellation_to_blacklist;
+}
+
 GnssHalTest::GnssCallback::GnssCallback()
     : info_cbq_("system_info"),
       name_cbq_("name"),
diff --git a/gnss/1.1/vts/functional/gnss_hal_test.h b/gnss/1.1/vts/functional/gnss_hal_test.h
index 169cd62..b0e52be 100644
--- a/gnss/1.1/vts/functional/gnss_hal_test.h
+++ b/gnss/1.1/vts/functional/gnss_hal_test.h
@@ -28,6 +28,7 @@
 using android::hardware::gnss::V1_0::GnssLocation;
 
 using android::hardware::gnss::common::GnssCallbackEventQueue;
+using android::hardware::gnss::V1_0::GnssConstellationType;
 using android::hardware::gnss::V1_0::GnssLocationFlags;
 using android::hardware::gnss::V1_1::IGnss;
 using android::hardware::gnss::V1_1::IGnssCallback;
@@ -139,6 +140,16 @@
      */
     bool IsGnssHalVersion_1_1() const;
 
+    /*
+     * startLocationAndGetNonGpsConstellation:
+     * 1. Start location
+     * 2. Find and return first non-GPS constellation
+     *
+     * Note that location is not stopped in this method. The client should call
+     * StopAndClearLocations() after the call.
+     */
+    GnssConstellationType startLocationAndGetNonGpsConstellation();
+
     sp<IGnss> gnss_hal_;         // GNSS HAL to call into
     sp<GnssCallback> gnss_cb_;   // Primary callback interface
 };
diff --git a/gnss/1.1/vts/functional/gnss_hal_test_cases.cpp b/gnss/1.1/vts/functional/gnss_hal_test_cases.cpp
index 79da84a..afba61f 100644
--- a/gnss/1.1/vts/functional/gnss_hal_test_cases.cpp
+++ b/gnss/1.1/vts/functional/gnss_hal_test_cases.cpp
@@ -352,7 +352,7 @@
 }
 
 /*
- * BlacklistConstellation:
+ * BlacklistConstellationWithLocationOff:
  *
  * 1) Turns on location, waits for 3 locations, ensuring they are valid, and checks corresponding
  * GnssStatus for any non-GPS constellations.
@@ -361,50 +361,19 @@
  * GnssStatus does not use any constellation but GPS.
  * 4a & b) Clean up by turning off location, and send in empty blacklist.
  */
-TEST_P(GnssHalTest, BlacklistConstellation) {
+TEST_P(GnssHalTest, BlacklistConstellationWithLocationOff) {
     if (!IsGnssHalVersion_1_1()) {
         ALOGI("Test BlacklistConstellation skipped. GNSS HAL version is greater than 1.1.");
         return;
     }
 
     const int kLocationsToAwait = 3;
-
-    gnss_cb_->location_cbq_.reset();
-    StartAndCheckLocations(kLocationsToAwait);
-    const int location_called_count = gnss_cb_->location_cbq_.calledCount();
-
-    // Tolerate 1 less sv status to handle edge cases in reporting.
-    int sv_status_cbq_size = gnss_cb_->sv_status_cbq_.size();
-    EXPECT_GE(sv_status_cbq_size + 1, kLocationsToAwait);
-    ALOGD("Observed %d GnssSvStatus, while awaiting %d Locations (%d received)", sv_status_cbq_size,
-          kLocationsToAwait, location_called_count);
-
     // Find first non-GPS constellation to blacklist
-    const int kGnssSvStatusTimeout = 2;
-    GnssConstellationType constellation_to_blacklist = GnssConstellationType::UNKNOWN;
-    for (int i = 0; i < sv_status_cbq_size; ++i) {
-        IGnssCallback::GnssSvStatus gnss_sv_status;
-        gnss_cb_->sv_status_cbq_.retrieve(gnss_sv_status, kGnssSvStatusTimeout);
-        for (uint32_t iSv = 0; iSv < gnss_sv_status.numSvs; iSv++) {
-            const auto& gnss_sv = gnss_sv_status.gnssSvList[iSv];
-            if ((gnss_sv.svFlag & IGnssCallback::GnssSvFlags::USED_IN_FIX) &&
-                (gnss_sv.constellation != GnssConstellationType::UNKNOWN) &&
-                (gnss_sv.constellation != GnssConstellationType::GPS)) {
-                // found a non-GPS constellation
-                constellation_to_blacklist = gnss_sv.constellation;
-                break;
-            }
-        }
-        if (constellation_to_blacklist != GnssConstellationType::UNKNOWN) {
-            break;
-        }
-    }
+    GnssConstellationType constellation_to_blacklist = startLocationAndGetNonGpsConstellation();
 
-    if (constellation_to_blacklist == GnssConstellationType::UNKNOWN) {
-        ALOGI("No non-GPS constellations found, constellation blacklist test less effective.");
-        // Proceed functionally to blacklist something.
-        constellation_to_blacklist = GnssConstellationType::GLONASS;
-    }
+    // Turns off location
+    StopAndClearLocations();
+
     IGnssConfiguration::BlacklistedSource source_to_blacklist;
     source_to_blacklist.constellation = constellation_to_blacklist;
     source_to_blacklist.svid = 0;  // documented wildcard for all satellites in this constellation
@@ -418,6 +387,7 @@
     sources.resize(1);
     sources[0] = source_to_blacklist;
 
+    // setBlacklist when location is off.
     auto result = gnss_configuration_hal->setBlacklist(sources);
     ASSERT_TRUE(result.isOk());
     EXPECT_TRUE(result);
@@ -429,10 +399,82 @@
     StartAndCheckLocations(kLocationsToAwait);
 
     // Tolerate 1 less sv status to handle edge cases in reporting.
-    sv_status_cbq_size = gnss_cb_->sv_status_cbq_.size();
+    int sv_status_cbq_size = gnss_cb_->sv_status_cbq_.size();
     EXPECT_GE(sv_status_cbq_size + 1, kLocationsToAwait);
     ALOGD("Observed %d GnssSvStatus, while awaiting %d Locations", sv_status_cbq_size,
           kLocationsToAwait);
+    const int kGnssSvStatusTimeout = 2;
+    for (int i = 0; i < sv_status_cbq_size; ++i) {
+        IGnssCallback::GnssSvStatus gnss_sv_status;
+        gnss_cb_->sv_status_cbq_.retrieve(gnss_sv_status, kGnssSvStatusTimeout);
+        for (uint32_t iSv = 0; iSv < gnss_sv_status.numSvs; iSv++) {
+            const auto& gnss_sv = gnss_sv_status.gnssSvList[iSv];
+            EXPECT_FALSE((gnss_sv.constellation == source_to_blacklist.constellation) &&
+                         (gnss_sv.svFlag & IGnssCallback::GnssSvFlags::USED_IN_FIX));
+        }
+    }
+
+    // clean up
+    StopAndClearLocations();
+    sources.resize(0);
+    result = gnss_configuration_hal->setBlacklist(sources);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+}
+
+/*
+ * BlacklistConstellationWithLocationOn:
+ *
+ * 1) Turns on location, waits for 3 locations, ensuring they are valid, and checks corresponding
+ * GnssStatus for any non-GPS constellations.
+ * 2a & b) Turns off location, and blacklist first non-GPS constellations.
+ * 3) Restart location, wait for 3 locations, ensuring they are valid, and checks corresponding
+ * GnssStatus does not use any constellation but GPS.
+ * 4a & b) Clean up by turning off location, and send in empty blacklist.
+ */
+TEST_P(GnssHalTest, BlacklistConstellationWithLocationOn) {
+    if (!IsGnssHalVersion_1_1()) {
+        ALOGI("Test BlacklistConstellation skipped. GNSS HAL version is greater than 1.1.");
+        return;
+    }
+
+    const int kLocationsToAwait = 3;
+    // Find first non-GPS constellation to blacklist
+    GnssConstellationType constellation_to_blacklist = startLocationAndGetNonGpsConstellation();
+
+    IGnssConfiguration::BlacklistedSource source_to_blacklist;
+    source_to_blacklist.constellation = constellation_to_blacklist;
+    source_to_blacklist.svid = 0;  // documented wildcard for all satellites in this constellation
+
+    auto gnss_configuration_hal_return = gnss_hal_->getExtensionGnssConfiguration_1_1();
+    ASSERT_TRUE(gnss_configuration_hal_return.isOk());
+    sp<IGnssConfiguration> gnss_configuration_hal = gnss_configuration_hal_return;
+    ASSERT_NE(gnss_configuration_hal, nullptr);
+
+    hidl_vec<IGnssConfiguration::BlacklistedSource> sources;
+    sources.resize(1);
+    sources[0] = source_to_blacklist;
+
+    // setBlacklist when location is still on
+    auto result = gnss_configuration_hal->setBlacklist(sources);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+
+    // Turns off location
+    StopAndClearLocations();
+
+    // retry and ensure constellation not used
+    gnss_cb_->sv_status_cbq_.reset();
+
+    gnss_cb_->location_cbq_.reset();
+    StartAndCheckLocations(kLocationsToAwait);
+
+    // Tolerate 1 less sv status to handle edge cases in reporting.
+    int sv_status_cbq_size = gnss_cb_->sv_status_cbq_.size();
+    EXPECT_GE(sv_status_cbq_size + 1, kLocationsToAwait);
+    ALOGD("Observed %d GnssSvStatus, while awaiting %d Locations", sv_status_cbq_size,
+          kLocationsToAwait);
+    const int kGnssSvStatusTimeout = 2;
     for (int i = 0; i < sv_status_cbq_size; ++i) {
         IGnssCallback::GnssSvStatus gnss_sv_status;
         gnss_cb_->sv_status_cbq_.retrieve(gnss_sv_status, kGnssSvStatusTimeout);
diff --git a/gnss/2.1/Android.bp b/gnss/2.1/Android.bp
index 5d3d62d..8b0c374 100644
--- a/gnss/2.1/Android.bp
+++ b/gnss/2.1/Android.bp
@@ -11,6 +11,7 @@
         "IGnssCallback.hal",
         "IGnssMeasurement.hal",
         "IGnssMeasurementCallback.hal",
+        "IGnssConfiguration.hal",
     ],
     interfaces: [
         "android.hardware.gnss.measurement_corrections@1.0",
diff --git a/gnss/2.1/IGnss.hal b/gnss/2.1/IGnss.hal
index 812f9cc..2d63392 100644
--- a/gnss/2.1/IGnss.hal
+++ b/gnss/2.1/IGnss.hal
@@ -20,6 +20,7 @@
 
 import IGnssCallback;
 import IGnssMeasurement;
+import IGnssConfiguration;
 
 /**
  * Represents the standard GNSS (Global Navigation Satellite System) interface.
@@ -50,4 +51,15 @@
      * @return gnssMeasurementIface Handle to the IGnssMeasurement interface.
      */
     getExtensionGnssMeasurement_2_1() generates (IGnssMeasurement gnssMeasurementIface);
+
+    /**
+     * This method returns the IGnssConfiguration interface.
+     *
+     * At least one of getExtensionGnssConfiguration(), getExtensionGnssConfiguration_1_1(),
+     * getExtensionGnssConfiguration_2_0(), and getExtensionGnssConfiguration_2_1() methods must
+     * return a non-null handle, and the other methods must return nullptr.
+     *
+     * @return gnssConfigurationIface Handle to the IGnssConfiguration interface.
+     */
+    getExtensionGnssConfiguration_2_1() generates (IGnssConfiguration gnssConfigurationIface);
 };
\ No newline at end of file
diff --git a/gnss/2.1/IGnssConfiguration.hal b/gnss/2.1/IGnssConfiguration.hal
new file mode 100644
index 0000000..8360ba9
--- /dev/null
+++ b/gnss/2.1/IGnssConfiguration.hal
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2019 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.gnss@2.1;
+
+import @2.0::IGnssConfiguration;
+import @2.0::GnssConstellationType;
+
+/**
+ * Extended interface for GNSS Configuration support.
+ */
+interface IGnssConfiguration extends @2.0::IGnssConfiguration {
+    /**
+     * Represents a blacklisted source, updating the GnssConstellationType to 2.0, which supports
+     * IRNSS.
+     */
+    struct BlacklistedSource {
+        /**
+         * Defines the constellation of the given satellite(s).
+         */
+        GnssConstellationType constellation;
+
+        /**
+         * Satellite (space vehicle) ID number, as defined in GnssSvInfo::svid
+         *
+         * Or 0 to blacklist all svid's for the specified constellation
+         */
+        int16_t svid;
+    };
+
+    /**
+     * Injects a vector of BlacklistedSource(s) which the HAL must not use to calculate the
+     * GNSS location output.
+     *
+     * The superset of all satellite sources provided, including wildcards, in the latest call
+     * to this method, is the set of satellites sources that must not be used in calculating
+     * location.
+     *
+     * All measurements from the specified satellites, across frequency bands, are blacklisted
+     * together.
+     *
+     * If this method is never called after the IGnssConfiguration.hal connection is made on boot,
+     * or is called with an empty vector, then no satellites are to be blacklisted as a result of
+     * this API.
+     *
+     * This blacklist must be considered as an additional source of which satellites
+     * should not be trusted for location on top of existing sources of similar information
+     * such as satellite broadcast health being unhealthy and measurement outlier removal.
+     *
+     * @param blacklist The BlacklistedSource(s) of satellites the HAL must not use.
+     *
+     * @return success Whether the HAL accepts and abides by the provided blacklist.
+     */
+    setBlacklist_2_1(vec<BlacklistedSource> blacklist) generates (bool success);
+};
\ No newline at end of file
diff --git a/gnss/2.1/default/Android.bp b/gnss/2.1/default/Android.bp
index a7cf63d..57233aa 100644
--- a/gnss/2.1/default/Android.bp
+++ b/gnss/2.1/default/Android.bp
@@ -23,6 +23,7 @@
     srcs: [
         "Gnss.cpp",
         "GnssMeasurement.cpp",
+        "GnssConfiguration.cpp",
         "service.cpp"
     ],
     shared_libs: [
diff --git a/gnss/2.1/default/Gnss.cpp b/gnss/2.1/default/Gnss.cpp
index 2771f27..384fd49 100644
--- a/gnss/2.1/default/Gnss.cpp
+++ b/gnss/2.1/default/Gnss.cpp
@@ -32,7 +32,7 @@
 
 sp<V2_1::IGnssCallback> Gnss::sGnssCallback_2_1 = nullptr;
 
-Gnss::Gnss() : mMinIntervalMs(1000) {}
+Gnss::Gnss() : mMinIntervalMs(1000), mGnssConfiguration{new GnssConfiguration()} {}
 
 Gnss::~Gnss() {
     stop();
@@ -48,7 +48,7 @@
     mIsActive = true;
     mThread = std::thread([this]() {
         while (mIsActive == true) {
-            auto svStatus = Utils::getMockSvInfoListV2_1();
+            auto svStatus = filterBlacklistedSatellitesV2_1(Utils::getMockSvInfoListV2_1());
             this->reportSvStatus(svStatus);
 
             const auto location = Utils::getMockLocationV2_0();
@@ -60,6 +60,16 @@
     return true;
 }
 
+hidl_vec<GnssSvInfo> Gnss::filterBlacklistedSatellitesV2_1(hidl_vec<GnssSvInfo> gnssSvInfoList) {
+    for (uint32_t i = 0; i < gnssSvInfoList.size(); i++) {
+        if (mGnssConfiguration->isBlacklistedV2_1(gnssSvInfoList[i])) {
+            gnssSvInfoList[i].v2_0.v1_0.svFlag &=
+                    ~static_cast<uint8_t>(V1_0::IGnssCallback::GnssSvFlags::USED_IN_FIX);
+        }
+    }
+    return gnssSvInfoList;
+}
+
 Return<bool> Gnss::stop() {
     ALOGD("stop");
     mIsActive = false;
@@ -270,6 +280,10 @@
     return new GnssMeasurement();
 }
 
+Return<sp<V2_1::IGnssConfiguration>> Gnss::getExtensionGnssConfiguration_2_1() {
+    return mGnssConfiguration;
+}
+
 void Gnss::reportSvStatus(const hidl_vec<GnssSvInfo>& svInfoList) const {
     std::unique_lock<std::mutex> lock(mMutex);
     if (sGnssCallback_2_1 == nullptr) {
diff --git a/gnss/2.1/default/Gnss.h b/gnss/2.1/default/Gnss.h
index a61f71c..674b070 100644
--- a/gnss/2.1/default/Gnss.h
+++ b/gnss/2.1/default/Gnss.h
@@ -22,6 +22,7 @@
 #include <atomic>
 #include <mutex>
 #include <thread>
+#include "GnssConfiguration.h"
 
 namespace android {
 namespace hardware {
@@ -87,6 +88,7 @@
     // Methods from V2_1::IGnss follow.
     Return<bool> setCallback_2_1(const sp<V2_1::IGnssCallback>& callback) override;
     Return<sp<V2_1::IGnssMeasurement>> getExtensionGnssMeasurement_2_1() override;
+    Return<sp<V2_1::IGnssConfiguration>> getExtensionGnssConfiguration_2_1() override;
 
   private:
     void reportLocation(const V2_0::GnssLocation&) const;
@@ -94,9 +96,11 @@
 
     static sp<V2_1::IGnssCallback> sGnssCallback_2_1;
     std::atomic<long> mMinIntervalMs;
+    sp<GnssConfiguration> mGnssConfiguration;
     std::atomic<bool> mIsActive;
     std::thread mThread;
     mutable std::mutex mMutex;
+    hidl_vec<GnssSvInfo> filterBlacklistedSatellitesV2_1(hidl_vec<GnssSvInfo> gnssSvInfoList);
 };
 
 }  // namespace implementation
diff --git a/gnss/2.1/default/GnssConfiguration.cpp b/gnss/2.1/default/GnssConfiguration.cpp
new file mode 100644
index 0000000..cd8f07f
--- /dev/null
+++ b/gnss/2.1/default/GnssConfiguration.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2019 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 "GnssConfiguration"
+
+#include "GnssConfiguration.h"
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_1 {
+namespace implementation {
+
+// Methods from ::android::hardware::gnss::V1_0::IGnssConfiguration follow.
+Return<bool> GnssConfiguration::setSuplEs(bool enable) {
+    ALOGD("setSuplEs enable: %d", enable);
+    // Method deprecated in 2.0 and not expected to be called by the framework.
+    return false;
+}
+
+Return<bool> GnssConfiguration::setSuplVersion(uint32_t) {
+    return true;
+}
+
+Return<bool> GnssConfiguration::setSuplMode(hidl_bitfield<SuplMode>) {
+    return true;
+}
+
+Return<bool> GnssConfiguration::setGpsLock(hidl_bitfield<GpsLock> gpsLock) {
+    ALOGD("setGpsLock gpsLock: %hhu", static_cast<GpsLock>(gpsLock));
+    // Method deprecated in 2.0 and not expected to be called by the framework.
+    return false;
+}
+
+Return<bool> GnssConfiguration::setLppProfile(hidl_bitfield<LppProfile>) {
+    return true;
+}
+
+Return<bool> GnssConfiguration::setGlonassPositioningProtocol(hidl_bitfield<GlonassPosProtocol>) {
+    return true;
+}
+
+Return<bool> GnssConfiguration::setEmergencySuplPdn(bool) {
+    return true;
+}
+
+// Methods from ::android::hardware::gnss::V1_1::IGnssConfiguration follow.
+Return<bool> GnssConfiguration::setBlacklist(
+        const hidl_vec<V1_1::IGnssConfiguration::BlacklistedSource>&) {
+    // TODO (b/122463906): Reuse 1.1 implementation.
+    return bool{};
+}
+
+// Methods from ::android::hardware::gnss::V2_0::IGnssConfiguration follow.
+Return<bool> GnssConfiguration::setEsExtensionSec(uint32_t emergencyExtensionSeconds) {
+    ALOGD("setEsExtensionSec emergencyExtensionSeconds: %d", emergencyExtensionSeconds);
+    return true;
+}
+
+// Methods from ::android::hardware::gnss::V2_1::IGnssConfiguration follow.
+Return<bool> GnssConfiguration::setBlacklist_2_1(
+        const hidl_vec<V2_1::IGnssConfiguration::BlacklistedSource>& sourceList) {
+    std::unique_lock<std::recursive_mutex> lock(mMutex);
+    mBlacklistedConstellationSet.clear();
+    mBlacklistedSourceSet.clear();
+    for (auto source : sourceList) {
+        if (source.svid == 0) {
+            // Wildcard blacklist, i.e., blacklist entire constellation.
+            mBlacklistedConstellationSet.insert(source.constellation);
+        } else {
+            mBlacklistedSourceSet.insert(source);
+        }
+    }
+    return true;
+}
+
+Return<bool> GnssConfiguration::isBlacklistedV2_1(const GnssSvInfoV2_1& gnssSvInfo) const {
+    std::unique_lock<std::recursive_mutex> lock(mMutex);
+    if (mBlacklistedConstellationSet.find(gnssSvInfo.v2_0.constellation) !=
+        mBlacklistedConstellationSet.end()) {
+        return true;
+    }
+    BlacklistedSourceV2_1 source = {.constellation = gnssSvInfo.v2_0.constellation,
+                                    .svid = gnssSvInfo.v2_0.v1_0.svid};
+    return (mBlacklistedSourceSet.find(source) != mBlacklistedSourceSet.end());
+}
+
+}  // namespace implementation
+}  // namespace V2_1
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
\ No newline at end of file
diff --git a/gnss/2.1/default/GnssConfiguration.h b/gnss/2.1/default/GnssConfiguration.h
new file mode 100644
index 0000000..662d61d
--- /dev/null
+++ b/gnss/2.1/default/GnssConfiguration.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2019 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 ANDROID_HARDWARE_GNSS_V2_1_GNSSCONFIGURATION_H
+#define ANDROID_HARDWARE_GNSS_V2_1_GNSSCONFIGURATION_H
+
+#include <android/hardware/gnss/2.1/IGnssCallback.h>
+#include <android/hardware/gnss/2.1/IGnssConfiguration.h>
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <mutex>
+#include <unordered_set>
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace V2_1 {
+namespace implementation {
+
+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 BlacklistedSourceV2_1 =
+        ::android::hardware::gnss::V2_1::IGnssConfiguration::BlacklistedSource;
+using GnssConstellationTypeV2_0 = V2_0::GnssConstellationType;
+using GnssSvInfoV2_1 = V2_1::IGnssCallback::GnssSvInfo;
+
+struct BlacklistedSourceHashV2_1 {
+    inline int operator()(const BlacklistedSourceV2_1& source) const {
+        return int(source.constellation) * 1000 + int(source.svid);
+    }
+};
+
+struct BlacklistedSourceEqualV2_1 {
+    inline bool operator()(const BlacklistedSourceV2_1& s1, const BlacklistedSourceV2_1& s2) const {
+        return (s1.constellation == s2.constellation) && (s1.svid == s2.svid);
+    }
+};
+
+using BlacklistedSourceSetV2_1 =
+        std::unordered_set<BlacklistedSourceV2_1, BlacklistedSourceHashV2_1,
+                           BlacklistedSourceEqualV2_1>;
+using BlacklistedConstellationSetV2_1 = std::unordered_set<GnssConstellationTypeV2_0>;
+
+struct GnssConfiguration : public IGnssConfiguration {
+    // Methods from ::android::hardware::gnss::V1_0::IGnssConfiguration follow.
+    Return<bool> setSuplEs(bool enabled) override;
+    Return<bool> setSuplVersion(uint32_t version) override;
+    Return<bool> setSuplMode(hidl_bitfield<SuplMode> mode) override;
+    Return<bool> setGpsLock(hidl_bitfield<GpsLock> lock) override;
+    Return<bool> setLppProfile(hidl_bitfield<LppProfile> lppProfile) override;
+    Return<bool> setGlonassPositioningProtocol(hidl_bitfield<GlonassPosProtocol> protocol) override;
+    Return<bool> setEmergencySuplPdn(bool enable) override;
+
+    // Methods from ::android::hardware::gnss::V1_1::IGnssConfiguration follow.
+    Return<bool> setBlacklist(
+            const hidl_vec<V1_1::IGnssConfiguration::BlacklistedSource>& blacklist) override;
+
+    std::recursive_mutex& getMutex() const;
+
+    // Methods from ::android::hardware::gnss::V2_0::IGnssConfiguration follow.
+    Return<bool> setEsExtensionSec(uint32_t emergencyExtensionSeconds) override;
+
+    // Methods from ::android::hardware::gnss::V2_1::IGnssConfiguration follow.
+    Return<bool> setBlacklist_2_1(
+            const hidl_vec<V2_1::IGnssConfiguration::BlacklistedSource>& blacklist) override;
+
+    Return<bool> isBlacklistedV2_1(const GnssSvInfoV2_1& gnssSvInfo) const;
+
+  private:
+    mutable std::recursive_mutex mMutex;
+
+    BlacklistedSourceSetV2_1 mBlacklistedSourceSet;
+    BlacklistedConstellationSetV2_1 mBlacklistedConstellationSet;
+};
+
+}  // namespace implementation
+}  // namespace V2_1
+}  // namespace gnss
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_GNSS_V2_1_GNSSCONFIGURATION_H
\ No newline at end of file
diff --git a/gnss/2.1/vts/functional/gnss_hal_test_cases.cpp b/gnss/2.1/vts/functional/gnss_hal_test_cases.cpp
index ef8249b..45a3d2a 100644
--- a/gnss/2.1/vts/functional/gnss_hal_test_cases.cpp
+++ b/gnss/2.1/vts/functional/gnss_hal_test_cases.cpp
@@ -30,6 +30,13 @@
 using IGnssMeasurement_2_0 = android::hardware::gnss::V2_0::IGnssMeasurement;
 using IGnssMeasurement_1_1 = android::hardware::gnss::V1_1::IGnssMeasurement;
 using IGnssMeasurement_1_0 = android::hardware::gnss::V1_0::IGnssMeasurement;
+using IGnssConfiguration_2_1 = android::hardware::gnss::V2_1::IGnssConfiguration;
+using IGnssConfiguration_2_0 = android::hardware::gnss::V2_0::IGnssConfiguration;
+using IGnssConfiguration_1_1 = android::hardware::gnss::V1_1::IGnssConfiguration;
+using IGnssConfiguration_1_0 = android::hardware::gnss::V1_0::IGnssConfiguration;
+
+using android::hardware::gnss::V2_0::GnssConstellationType;
+using android::hardware::gnss::V2_1::IGnssConfiguration;
 
 /*
  * SetupTeardownCreateCleanup:
@@ -61,6 +68,27 @@
 }
 
 /*
+ * TestGnssConfigurationExtension:
+ * Gets the GnssConfigurationExtension and verifies that it returns an actual extension.
+ */
+TEST_P(GnssHalTest, TestGnssConfigurationExtension) {
+    auto gnssConfiguration_2_1 = gnss_hal_->getExtensionGnssConfiguration_2_1();
+    auto gnssConfiguration_2_0 = gnss_hal_->getExtensionGnssConfiguration_2_0();
+    auto gnssConfiguration_1_1 = gnss_hal_->getExtensionGnssConfiguration_1_1();
+    auto gnssConfiguration_1_0 = gnss_hal_->getExtensionGnssConfiguration();
+    ASSERT_TRUE(gnssConfiguration_2_1.isOk() && gnssConfiguration_2_0.isOk() &&
+                gnssConfiguration_1_1.isOk() && gnssConfiguration_1_0.isOk());
+    sp<IGnssConfiguration_2_1> iGnssConfig_2_1 = gnssConfiguration_2_1;
+    sp<IGnssConfiguration_2_0> iGnssConfig_2_0 = gnssConfiguration_2_0;
+    sp<IGnssConfiguration_1_1> iGnssConfig_1_1 = gnssConfiguration_1_1;
+    sp<IGnssConfiguration_1_0> iGnssConfig_1_0 = gnssConfiguration_1_0;
+    // At least one interface is non-null.
+    int numNonNull = (int)(iGnssConfig_2_1 != nullptr) + (int)(iGnssConfig_2_0 != nullptr) +
+                     (int)(iGnssConfig_1_1 != nullptr) + (int)(iGnssConfig_1_0 != nullptr);
+    ASSERT_TRUE(numNonNull >= 1);
+}
+
+/*
  * TestGnssMeasurementFields:
  * Sets a GnssMeasurementCallback, waits for a measurement, and verifies
  * 1. basebandCN0DbHz is valid
@@ -126,3 +154,338 @@
     ASSERT_TRUE(nonZeroCn0Found);
     StopAndClearLocations();
 }
+
+/*
+ * FindStrongFrequentNonGpsSource:
+ *
+ * Search through a GnssSvStatus list for the strongest non-GPS satellite observed enough times
+ *
+ * returns the strongest source,
+ *         or a source with constellation == UNKNOWN if none are found sufficient times
+ * TODO(skz): create a template for this to reduce code duplication of v2.1 and v2.0 since both
+ * are using vectors.
+ */
+IGnssConfiguration::BlacklistedSource FindStrongFrequentNonGpsSource(
+        const std::list<hidl_vec<IGnssCallback_2_1::GnssSvInfo>> sv_info_list,
+        const int min_observations) {
+    struct ComparableBlacklistedSource {
+        IGnssConfiguration::BlacklistedSource id;
+
+        ComparableBlacklistedSource() {
+            id.constellation = GnssConstellationType::UNKNOWN;
+            id.svid = 0;
+        }
+
+        bool operator<(const ComparableBlacklistedSource& compare) const {
+            return ((id.svid < compare.id.svid) || ((id.svid == compare.id.svid) &&
+                                                    (id.constellation < compare.id.constellation)));
+        }
+    };
+
+    struct SignalCounts {
+        int observations;
+        float max_cn0_dbhz;
+    };
+
+    std::map<ComparableBlacklistedSource, SignalCounts> mapSignals;
+
+    for (const auto& sv_info_vec : sv_info_list) {
+        for (uint32_t iSv = 0; iSv < sv_info_vec.size(); iSv++) {
+            const auto& gnss_sv = sv_info_vec[iSv];
+            if ((gnss_sv.v2_0.v1_0.svFlag & IGnssCallback_1_0::GnssSvFlags::USED_IN_FIX) &&
+                (gnss_sv.v2_0.constellation != GnssConstellationType::GPS)) {
+                ComparableBlacklistedSource source;
+                source.id.svid = gnss_sv.v2_0.v1_0.svid;
+                source.id.constellation = gnss_sv.v2_0.constellation;
+
+                const auto& itSignal = mapSignals.find(source);
+                if (itSignal == mapSignals.end()) {
+                    SignalCounts counts;
+                    counts.observations = 1;
+                    counts.max_cn0_dbhz = gnss_sv.v2_0.v1_0.cN0Dbhz;
+                    mapSignals.insert(
+                            std::pair<ComparableBlacklistedSource, SignalCounts>(source, counts));
+                } else {
+                    itSignal->second.observations++;
+                    if (itSignal->second.max_cn0_dbhz < gnss_sv.v2_0.v1_0.cN0Dbhz) {
+                        itSignal->second.max_cn0_dbhz = gnss_sv.v2_0.v1_0.cN0Dbhz;
+                    }
+                }
+            }
+        }
+    }
+
+    float max_cn0_dbhz_with_sufficient_count = 0.;
+    int total_observation_count = 0;
+    int blacklisted_source_count_observation = 0;
+
+    ComparableBlacklistedSource source_to_blacklist;  // initializes to zero = UNKNOWN constellation
+    for (auto const& pairSignal : mapSignals) {
+        total_observation_count += pairSignal.second.observations;
+        if ((pairSignal.second.observations >= min_observations) &&
+            (pairSignal.second.max_cn0_dbhz > max_cn0_dbhz_with_sufficient_count)) {
+            source_to_blacklist = pairSignal.first;
+            blacklisted_source_count_observation = pairSignal.second.observations;
+            max_cn0_dbhz_with_sufficient_count = pairSignal.second.max_cn0_dbhz;
+        }
+    }
+    ALOGD("Among %d observations, chose svid %d, constellation %d, "
+          "with %d observations at %.1f max CNo",
+          total_observation_count, source_to_blacklist.id.svid,
+          (int)source_to_blacklist.id.constellation, blacklisted_source_count_observation,
+          max_cn0_dbhz_with_sufficient_count);
+
+    return source_to_blacklist.id;
+}
+
+/*
+ * BlacklistIndividualSatellites:
+ *
+ * 1) Turns on location, waits for 3 locations, ensuring they are valid, and checks corresponding
+ * GnssStatus for common satellites (strongest and one other.)
+ * 2a & b) Turns off location, and blacklists common satellites.
+ * 3) Restart location, wait for 3 locations, ensuring they are valid, and checks corresponding
+ * GnssStatus does not use those satellites.
+ * 4a & b) Turns off location, and send in empty blacklist.
+ * 5a) Restart location, wait for 3 locations, ensuring they are valid, and checks corresponding
+ * GnssStatus does re-use at least the previously strongest satellite
+ * 5b) Retry a few times, in case GNSS search strategy takes a while to reacquire even the
+ * formerly strongest satellite
+ */
+TEST_P(GnssHalTest, BlacklistIndividualSatellites) {
+    const int kLocationsToAwait = 3;
+    const int kRetriesToUnBlacklist = 10;
+
+    gnss_cb_->location_cbq_.reset();
+    StartAndCheckLocations(kLocationsToAwait);
+    int location_called_count = gnss_cb_->location_cbq_.calledCount();
+
+    // Tolerate 1 less sv status to handle edge cases in reporting.
+    int sv_info_list_cbq_size = gnss_cb_->sv_info_list_cbq_.size();
+    EXPECT_GE(sv_info_list_cbq_size + 1, kLocationsToAwait);
+    ALOGD("Observed %d GnssSvInfo, while awaiting %d Locations (%d received)",
+          sv_info_list_cbq_size, kLocationsToAwait, location_called_count);
+
+    /*
+     * Identify strongest SV seen at least kLocationsToAwait -1 times
+     * Why -1?  To avoid test flakiness in case of (plausible) slight flakiness in strongest signal
+     * observability (one epoch RF null)
+     */
+
+    const int kGnssSvInfoListTimeout = 2;
+    std::list<hidl_vec<IGnssCallback_2_1::GnssSvInfo>> sv_info_vec_list;
+    int count = gnss_cb_->sv_info_list_cbq_.retrieve(sv_info_vec_list, sv_info_list_cbq_size,
+                                                     kGnssSvInfoListTimeout);
+
+    ASSERT_EQ(count, sv_info_list_cbq_size);
+
+    IGnssConfiguration::BlacklistedSource source_to_blacklist =
+            FindStrongFrequentNonGpsSource(sv_info_vec_list, kLocationsToAwait - 1);
+
+    if (source_to_blacklist.constellation == GnssConstellationType::UNKNOWN) {
+        // Cannot find a non-GPS satellite. Let the test pass.
+        ALOGD("Cannot find a non-GPS satellite. Letting the test pass.");
+        return;
+    }
+
+    // Stop locations, blacklist the common SV
+    StopAndClearLocations();
+
+    auto gnss_configuration_hal_return = gnss_hal_->getExtensionGnssConfiguration_2_1();
+    ASSERT_TRUE(gnss_configuration_hal_return.isOk());
+    sp<IGnssConfiguration> gnss_configuration_hal = gnss_configuration_hal_return;
+    ASSERT_NE(gnss_configuration_hal, nullptr);
+
+    hidl_vec<IGnssConfiguration::BlacklistedSource> sources;
+    sources.resize(1);
+    sources[0] = source_to_blacklist;
+
+    auto result = gnss_configuration_hal->setBlacklist_2_1(sources);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+
+    // retry and ensure satellite not used
+    gnss_cb_->sv_info_list_cbq_.reset();
+
+    gnss_cb_->location_cbq_.reset();
+    StartAndCheckLocations(kLocationsToAwait);
+
+    // early exit if test is being run with insufficient signal
+    location_called_count = gnss_cb_->location_cbq_.calledCount();
+    if (location_called_count == 0) {
+        ALOGE("0 Gnss locations received - ensure sufficient signal and retry");
+    }
+    ASSERT_TRUE(location_called_count > 0);
+
+    // Tolerate 1 less sv status to handle edge cases in reporting.
+    sv_info_list_cbq_size = gnss_cb_->sv_info_list_cbq_.size();
+    EXPECT_GE(sv_info_list_cbq_size + 1, kLocationsToAwait);
+    ALOGD("Observed %d GnssSvInfo, while awaiting %d Locations (%d received)",
+          sv_info_list_cbq_size, kLocationsToAwait, location_called_count);
+    for (int i = 0; i < sv_info_list_cbq_size; ++i) {
+        hidl_vec<IGnssCallback_2_1::GnssSvInfo> sv_info_vec;
+        gnss_cb_->sv_info_list_cbq_.retrieve(sv_info_vec, kGnssSvInfoListTimeout);
+        for (uint32_t iSv = 0; iSv < sv_info_vec.size(); iSv++) {
+            const auto& gnss_sv = sv_info_vec[iSv];
+            EXPECT_FALSE((gnss_sv.v2_0.v1_0.svid == source_to_blacklist.svid) &&
+                         (gnss_sv.v2_0.constellation == source_to_blacklist.constellation) &&
+                         (gnss_sv.v2_0.v1_0.svFlag & IGnssCallback_1_0::GnssSvFlags::USED_IN_FIX));
+        }
+    }
+
+    // clear blacklist and restart - this time updating the blacklist while location is still on
+    sources.resize(0);
+
+    result = gnss_configuration_hal->setBlacklist_2_1(sources);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+
+    bool strongest_sv_is_reobserved = false;
+    // do several loops awaiting a few locations, allowing non-immediate reacquisition strategies
+    int unblacklist_loops_remaining = kRetriesToUnBlacklist;
+    while (!strongest_sv_is_reobserved && (unblacklist_loops_remaining-- > 0)) {
+        StopAndClearLocations();
+        gnss_cb_->sv_info_list_cbq_.reset();
+
+        gnss_cb_->location_cbq_.reset();
+        StartAndCheckLocations(kLocationsToAwait);
+
+        // early exit loop if test is being run with insufficient signal
+        location_called_count = gnss_cb_->location_cbq_.calledCount();
+        if (location_called_count == 0) {
+            ALOGE("0 Gnss locations received - ensure sufficient signal and retry");
+        }
+        ASSERT_TRUE(location_called_count > 0);
+
+        // Tolerate 1 less sv status to handle edge cases in reporting.
+        sv_info_list_cbq_size = gnss_cb_->sv_info_list_cbq_.size();
+        EXPECT_GE(sv_info_list_cbq_size + 1, kLocationsToAwait);
+        ALOGD("Clear blacklist, observed %d GnssSvInfo, while awaiting %d Locations"
+              ", tries remaining %d",
+              sv_info_list_cbq_size, kLocationsToAwait, unblacklist_loops_remaining);
+
+        for (int i = 0; i < sv_info_list_cbq_size; ++i) {
+            hidl_vec<IGnssCallback_2_1::GnssSvInfo> sv_info_vec;
+            gnss_cb_->sv_info_list_cbq_.retrieve(sv_info_vec, kGnssSvInfoListTimeout);
+            for (uint32_t iSv = 0; iSv < sv_info_vec.size(); iSv++) {
+                const auto& gnss_sv = sv_info_vec[iSv];
+                if ((gnss_sv.v2_0.v1_0.svid == source_to_blacklist.svid) &&
+                    (gnss_sv.v2_0.constellation == source_to_blacklist.constellation) &&
+                    (gnss_sv.v2_0.v1_0.svFlag & IGnssCallback_1_0::GnssSvFlags::USED_IN_FIX)) {
+                    strongest_sv_is_reobserved = true;
+                    break;
+                }
+            }
+            if (strongest_sv_is_reobserved) break;
+        }
+    }
+    EXPECT_TRUE(strongest_sv_is_reobserved);
+    StopAndClearLocations();
+}
+
+/*
+ * BlacklistConstellation:
+ *
+ * 1) Turns on location, waits for 3 locations, ensuring they are valid, and checks corresponding
+ * GnssStatus for any non-GPS constellations.
+ * 2a & b) Turns off location, and blacklist first non-GPS constellations.
+ * 3) Restart location, wait for 3 locations, ensuring they are valid, and checks corresponding
+ * GnssStatus does not use any constellation but GPS.
+ * 4a & b) Clean up by turning off location, and send in empty blacklist.
+ */
+TEST_P(GnssHalTest, BlacklistConstellation) {
+    const int kLocationsToAwait = 3;
+
+    gnss_cb_->location_cbq_.reset();
+    StartAndCheckLocations(kLocationsToAwait);
+    const int location_called_count = gnss_cb_->location_cbq_.calledCount();
+
+    // Tolerate 1 less sv status to handle edge cases in reporting.
+    int sv_info_list_cbq_size = gnss_cb_->sv_info_list_cbq_.size();
+    EXPECT_GE(sv_info_list_cbq_size + 1, kLocationsToAwait);
+    ALOGD("Observed %d GnssSvInfo, while awaiting %d Locations (%d received)",
+          sv_info_list_cbq_size, kLocationsToAwait, location_called_count);
+
+    // Find first non-GPS constellation to blacklist
+    const int kGnssSvInfoListTimeout = 2;
+    GnssConstellationType constellation_to_blacklist = GnssConstellationType::UNKNOWN;
+    for (int i = 0; i < sv_info_list_cbq_size; ++i) {
+        hidl_vec<IGnssCallback_2_1::GnssSvInfo> sv_info_vec;
+        gnss_cb_->sv_info_list_cbq_.retrieve(sv_info_vec, kGnssSvInfoListTimeout);
+        for (uint32_t iSv = 0; iSv < sv_info_vec.size(); iSv++) {
+            const auto& gnss_sv = sv_info_vec[iSv];
+            if ((gnss_sv.v2_0.v1_0.svFlag & IGnssCallback_1_0::GnssSvFlags::USED_IN_FIX) &&
+                (gnss_sv.v2_0.constellation != GnssConstellationType::UNKNOWN) &&
+                (gnss_sv.v2_0.constellation != GnssConstellationType::GPS)) {
+                // found a non-GPS constellation
+                constellation_to_blacklist = gnss_sv.v2_0.constellation;
+                break;
+            }
+        }
+        if (constellation_to_blacklist != GnssConstellationType::UNKNOWN) {
+            break;
+        }
+    }
+
+    // Turns off location
+    StopAndClearLocations();
+
+    if (constellation_to_blacklist == GnssConstellationType::UNKNOWN) {
+        ALOGI("No non-GPS constellations found, constellation blacklist test less effective.");
+        // Proceed functionally to blacklist something.
+        constellation_to_blacklist = GnssConstellationType::GLONASS;
+    }
+    IGnssConfiguration::BlacklistedSource source_to_blacklist_1;
+    source_to_blacklist_1.constellation = constellation_to_blacklist;
+    source_to_blacklist_1.svid = 0;  // documented wildcard for all satellites in this constellation
+
+    // IRNSS was added in 2.0. Always attempt to blacklist IRNSS to verify that the new enum is
+    // supported.
+    IGnssConfiguration::BlacklistedSource source_to_blacklist_2;
+    source_to_blacklist_2.constellation = GnssConstellationType::IRNSS;
+    source_to_blacklist_2.svid = 0;  // documented wildcard for all satellites in this constellation
+
+    auto gnss_configuration_hal_return = gnss_hal_->getExtensionGnssConfiguration_2_1();
+    ASSERT_TRUE(gnss_configuration_hal_return.isOk());
+    sp<IGnssConfiguration> gnss_configuration_hal = gnss_configuration_hal_return;
+    ASSERT_NE(gnss_configuration_hal, nullptr);
+
+    hidl_vec<IGnssConfiguration::BlacklistedSource> sources;
+    sources.resize(2);
+    sources[0] = source_to_blacklist_1;
+    sources[1] = source_to_blacklist_2;
+
+    auto result = gnss_configuration_hal->setBlacklist_2_1(sources);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+
+    // retry and ensure constellation not used
+    gnss_cb_->sv_info_list_cbq_.reset();
+
+    gnss_cb_->location_cbq_.reset();
+    StartAndCheckLocations(kLocationsToAwait);
+
+    // Tolerate 1 less sv status to handle edge cases in reporting.
+    sv_info_list_cbq_size = gnss_cb_->sv_info_list_cbq_.size();
+    EXPECT_GE(sv_info_list_cbq_size + 1, kLocationsToAwait);
+    ALOGD("Observed %d GnssSvInfo, while awaiting %d Locations", sv_info_list_cbq_size,
+          kLocationsToAwait);
+    for (int i = 0; i < sv_info_list_cbq_size; ++i) {
+        hidl_vec<IGnssCallback_2_1::GnssSvInfo> sv_info_vec;
+        gnss_cb_->sv_info_list_cbq_.retrieve(sv_info_vec, kGnssSvInfoListTimeout);
+        for (uint32_t iSv = 0; iSv < sv_info_vec.size(); iSv++) {
+            const auto& gnss_sv = sv_info_vec[iSv];
+            EXPECT_FALSE((gnss_sv.v2_0.constellation == source_to_blacklist_1.constellation) &&
+                         (gnss_sv.v2_0.v1_0.svFlag & IGnssCallback_1_0::GnssSvFlags::USED_IN_FIX));
+            EXPECT_FALSE((gnss_sv.v2_0.constellation == source_to_blacklist_2.constellation) &&
+                         (gnss_sv.v2_0.v1_0.svFlag & IGnssCallback_1_0::GnssSvFlags::USED_IN_FIX));
+        }
+    }
+
+    // clean up
+    StopAndClearLocations();
+    sources.resize(0);
+    result = gnss_configuration_hal->setBlacklist_2_1(sources);
+    ASSERT_TRUE(result.isOk());
+    EXPECT_TRUE(result);
+}
\ No newline at end of file
diff --git a/gnss/common/utils/default/Utils.cpp b/gnss/common/utils/default/Utils.cpp
index 6c6d696..ccb91b1 100644
--- a/gnss/common/utils/default/Utils.cpp
+++ b/gnss/common/utils/default/Utils.cpp
@@ -175,6 +175,11 @@
                                                         25.0, 66.0, 247.0),
                                       V2_0::GnssConstellationType::GLONASS),
                     20.0),
+            getMockSvInfoV2_1(
+                    getMockSvInfoV2_0(getMockSvInfoV1_0(3, V1_0::GnssConstellationType::UNKNOWN,
+                                                        22.0, 35.0, 112.0),
+                                      V2_0::GnssConstellationType::IRNSS),
+                    19.7),
     };
     return gnssSvInfoList;
 }
diff --git a/graphics/mapper/2.0/utils/vts/MapperVts.cpp b/graphics/mapper/2.0/utils/vts/MapperVts.cpp
index d08ac56..d4e4dde 100644
--- a/graphics/mapper/2.0/utils/vts/MapperVts.cpp
+++ b/graphics/mapper/2.0/utils/vts/MapperVts.cpp
@@ -16,8 +16,6 @@
 
 #include <mapper-vts/2.0/MapperVts.h>
 
-#include <VtsHalHidlTargetTestBase.h>
-
 namespace android {
 namespace hardware {
 namespace graphics {
@@ -30,10 +28,10 @@
 }
 
 void Gralloc::init(const std::string& allocatorServiceName, const std::string& mapperServiceName) {
-    mAllocator = ::testing::VtsHalHidlTargetTestBase::getService<IAllocator>(allocatorServiceName);
+    mAllocator = IAllocator::getService(allocatorServiceName);
     ASSERT_NE(nullptr, mAllocator.get()) << "failed to get allocator service";
 
-    mMapper = ::testing::VtsHalHidlTargetTestBase::getService<IMapper>(mapperServiceName);
+    mMapper = IMapper::getService(mapperServiceName);
     ASSERT_NE(nullptr, mMapper.get()) << "failed to get mapper service";
     ASSERT_FALSE(mMapper->isRemote()) << "mapper is not in passthrough mode";
 }
diff --git a/graphics/mapper/2.0/utils/vts/include/mapper-vts/2.0/MapperVts.h b/graphics/mapper/2.0/utils/vts/include/mapper-vts/2.0/MapperVts.h
index 6c2c9a6..fc8a102 100644
--- a/graphics/mapper/2.0/utils/vts/include/mapper-vts/2.0/MapperVts.h
+++ b/graphics/mapper/2.0/utils/vts/include/mapper-vts/2.0/MapperVts.h
@@ -22,6 +22,7 @@
 
 #include <android/hardware/graphics/allocator/2.0/IAllocator.h>
 #include <android/hardware/graphics/mapper/2.0/IMapper.h>
+#include <gtest/gtest.h>
 #include <utils/StrongPointer.h>
 
 namespace android {
diff --git a/graphics/mapper/2.0/vts/functional/Android.bp b/graphics/mapper/2.0/vts/functional/Android.bp
index 853c2a3..a055b61 100644
--- a/graphics/mapper/2.0/vts/functional/Android.bp
+++ b/graphics/mapper/2.0/vts/functional/Android.bp
@@ -24,5 +24,5 @@
         "android.hardware.graphics.mapper@2.0",
         "android.hardware.graphics.mapper@2.0-vts",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperV2_0TargetTest.cpp b/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperV2_0TargetTest.cpp
index 5ec0af2..b079a4b 100644
--- a/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperV2_0TargetTest.cpp
+++ b/graphics/mapper/2.0/vts/functional/VtsHalGraphicsMapperV2_0TargetTest.cpp
@@ -20,8 +20,10 @@
 #include <thread>
 #include <vector>
 
-#include <VtsHalHidlTargetTestBase.h>
 #include <android-base/logging.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 #include <mapper-vts/2.0/MapperVts.h>
 
 namespace android {
@@ -35,28 +37,12 @@
 using android::hardware::graphics::common::V1_0::BufferUsage;
 using android::hardware::graphics::common::V1_0::PixelFormat;
 
-// Test environment for graphics.mapper.
-class GraphicsMapperHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static GraphicsMapperHidlEnvironment* Instance() {
-        static GraphicsMapperHidlEnvironment* instance = new GraphicsMapperHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override {
-        registerTestService<IAllocator>();
-        registerTestService<IMapper>();
-    }
-};
-
-class GraphicsMapperHidlTest : public ::testing::VtsHalHidlTargetTestBase {
-   protected:
+class GraphicsMapperHidlTest
+    : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
+  protected:
     void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(
-            mGralloc = std::make_unique<Gralloc>(
-                GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
-                GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+        ASSERT_NO_FATAL_FAILURE(mGralloc = std::make_unique<Gralloc>(std::get<0>(GetParam()),
+                                                                     std::get<1>(GetParam())));
 
         mDummyDescriptorInfo.width = 64;
         mDummyDescriptorInfo.height = 64;
@@ -75,14 +61,14 @@
 /**
  * Test IAllocator::dumpDebugInfo by calling it.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorDumpDebugInfo) {
+TEST_P(GraphicsMapperHidlTest, AllocatorDumpDebugInfo) {
     mGralloc->dumpDebugInfo();
 }
 
 /**
  * Test IAllocator::allocate with valid buffer descriptors.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorAllocate) {
+TEST_P(GraphicsMapperHidlTest, AllocatorAllocate) {
     BufferDescriptor descriptor;
     ASSERT_NO_FATAL_FAILURE(descriptor = mGralloc->createDescriptor(mDummyDescriptorInfo));
 
@@ -105,7 +91,7 @@
 /**
  * Test IAllocator::allocate with invalid buffer descriptors.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorAllocateNegative) {
+TEST_P(GraphicsMapperHidlTest, AllocatorAllocateNegative) {
     // this assumes any valid descriptor is non-empty
     BufferDescriptor descriptor;
     mGralloc->getAllocator()->allocate(descriptor, 1,
@@ -117,7 +103,7 @@
 /**
  * Test IAllocator::allocate does not leak.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorAllocateNoLeak) {
+TEST_P(GraphicsMapperHidlTest, AllocatorAllocateNoLeak) {
     auto info = mDummyDescriptorInfo;
     info.width = 1024;
     info.height = 1024;
@@ -131,7 +117,7 @@
 /**
  * Test that IAllocator::allocate is thread-safe.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorAllocateThreaded) {
+TEST_P(GraphicsMapperHidlTest, AllocatorAllocateThreaded) {
     BufferDescriptor descriptor;
     ASSERT_NO_FATAL_FAILURE(descriptor = mGralloc->createDescriptor(mDummyDescriptorInfo));
 
@@ -161,14 +147,14 @@
 /**
  * Test IMapper::createDescriptor with valid descriptor info.
  */
-TEST_F(GraphicsMapperHidlTest, CreateDescriptorBasic) {
+TEST_P(GraphicsMapperHidlTest, CreateDescriptorBasic) {
     ASSERT_NO_FATAL_FAILURE(mGralloc->createDescriptor(mDummyDescriptorInfo));
 }
 
 /**
  * Test IMapper::createDescriptor with invalid descriptor info.
  */
-TEST_F(GraphicsMapperHidlTest, CreateDescriptorNegative) {
+TEST_P(GraphicsMapperHidlTest, CreateDescriptorNegative) {
     auto info = mDummyDescriptorInfo;
     info.width = 0;
     mGralloc->getMapper()->createDescriptor(info, [&](const auto& tmpError, const auto&) {
@@ -179,7 +165,7 @@
 /**
  * Test IMapper::importBuffer and IMapper::freeBuffer with allocated buffers.
  */
-TEST_F(GraphicsMapperHidlTest, ImportFreeBufferBasic) {
+TEST_P(GraphicsMapperHidlTest, ImportFreeBufferBasic) {
     const native_handle_t* bufferHandle;
     ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true));
     ASSERT_NO_FATAL_FAILURE(mGralloc->freeBuffer(bufferHandle));
@@ -188,7 +174,7 @@
 /**
  * Test IMapper::importBuffer and IMapper::freeBuffer with cloned buffers.
  */
-TEST_F(GraphicsMapperHidlTest, ImportFreeBufferClone) {
+TEST_P(GraphicsMapperHidlTest, ImportFreeBufferClone) {
     const native_handle_t* clonedBufferHandle;
     ASSERT_NO_FATAL_FAILURE(clonedBufferHandle = mGralloc->allocate(mDummyDescriptorInfo, false));
 
@@ -206,7 +192,7 @@
 /**
  * Test IMapper::importBuffer and IMapper::freeBuffer cross mapper instances.
  */
-TEST_F(GraphicsMapperHidlTest, ImportFreeBufferSingleton) {
+TEST_P(GraphicsMapperHidlTest, ImportFreeBufferSingleton) {
     const native_handle_t* rawHandle;
     ASSERT_NO_FATAL_FAILURE(rawHandle = mGralloc->allocate(mDummyDescriptorInfo, false));
 
@@ -218,10 +204,8 @@
 
     // free the imported handle with another mapper
     std::unique_ptr<Gralloc> anotherGralloc;
-    ASSERT_NO_FATAL_FAILURE(
-        anotherGralloc = std::make_unique<Gralloc>(
-            GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
-            GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+    ASSERT_NO_FATAL_FAILURE(anotherGralloc = std::make_unique<Gralloc>(std::get<0>(GetParam()),
+                                                                       std::get<1>(GetParam())));
     Error error = mGralloc->getMapper()->freeBuffer(importedHandle);
     ASSERT_EQ(Error::NONE, error);
 
@@ -231,7 +215,7 @@
 /**
  * Test IMapper::importBuffer and IMapper::freeBuffer do not leak.
  */
-TEST_F(GraphicsMapperHidlTest, ImportFreeBufferNoLeak) {
+TEST_P(GraphicsMapperHidlTest, ImportFreeBufferNoLeak) {
     auto info = mDummyDescriptorInfo;
     info.width = 1024;
     info.height = 1024;
@@ -245,7 +229,7 @@
 /**
  * Test IMapper::importBuffer with invalid buffers.
  */
-TEST_F(GraphicsMapperHidlTest, ImportBufferNegative) {
+TEST_P(GraphicsMapperHidlTest, ImportBufferNegative) {
     native_handle_t* invalidHandle = nullptr;
     mGralloc->getMapper()->importBuffer(invalidHandle, [&](const auto& tmpError, const auto&) {
         EXPECT_EQ(Error::BAD_BUFFER, tmpError)
@@ -263,7 +247,7 @@
 /**
  * Test IMapper::freeBuffer with invalid buffers.
  */
-TEST_F(GraphicsMapperHidlTest, FreeBufferNegative) {
+TEST_P(GraphicsMapperHidlTest, FreeBufferNegative) {
     native_handle_t* invalidHandle = nullptr;
     Error error = mGralloc->getMapper()->freeBuffer(invalidHandle);
     EXPECT_EQ(Error::BAD_BUFFER, error) << "freeBuffer with nullptr did not fail with BAD_BUFFER";
@@ -286,7 +270,7 @@
 /**
  * Test IMapper::lock and IMapper::unlock.
  */
-TEST_F(GraphicsMapperHidlTest, LockUnlockBasic) {
+TEST_P(GraphicsMapperHidlTest, LockUnlockBasic) {
     const auto& info = mDummyDescriptorInfo;
 
     const native_handle_t* bufferHandle;
@@ -332,7 +316,7 @@
  * Test IMapper::lockYCbCr.  This locks a YV12 buffer, and makes sure we can
  * write to and read from it.
  */
-TEST_F(GraphicsMapperHidlTest, LockYCbCrBasic) {
+TEST_P(GraphicsMapperHidlTest, LockYCbCrBasic) {
     auto info = mDummyDescriptorInfo;
     info.format = PixelFormat::YV12;
 
@@ -391,7 +375,7 @@
 /**
  * Test IMapper::unlock with invalid buffers.
  */
-TEST_F(GraphicsMapperHidlTest, UnlockNegative) {
+TEST_P(GraphicsMapperHidlTest, UnlockNegative) {
     native_handle_t* invalidHandle = nullptr;
     mGralloc->getMapper()->unlock(invalidHandle, [&](const auto& tmpError, const auto&) {
         EXPECT_EQ(Error::BAD_BUFFER, tmpError)
@@ -426,6 +410,14 @@
 #endif
 }
 
+INSTANTIATE_TEST_CASE_P(
+        PerInstance, GraphicsMapperHidlTest,
+        testing::Combine(
+                testing::ValuesIn(
+                        android::hardware::getAllHalInstanceNames(IAllocator::descriptor)),
+                testing::ValuesIn(android::hardware::getAllHalInstanceNames(IMapper::descriptor))),
+        android::hardware::PrintInstanceTupleNameToString<>);
+
 }  // namespace
 }  // namespace vts
 }  // namespace V2_0
@@ -433,13 +425,3 @@
 }  // namespace graphics
 }  // namespace hardware
 }  // namespace android
-
-int main(int argc, char** argv) {
-    using android::hardware::graphics::mapper::V2_0::vts::GraphicsMapperHidlEnvironment;
-    ::testing::AddGlobalTestEnvironment(GraphicsMapperHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    GraphicsMapperHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
diff --git a/graphics/mapper/2.1/utils/vts/Android.bp b/graphics/mapper/2.1/utils/vts/Android.bp
index ca02aad..abbe50a 100644
--- a/graphics/mapper/2.1/utils/vts/Android.bp
+++ b/graphics/mapper/2.1/utils/vts/Android.bp
@@ -16,14 +16,13 @@
 
 cc_library_static {
     name: "android.hardware.graphics.mapper@2.1-vts",
-    defaults: ["hidl_defaults"],
+    defaults: ["hidl_defaults", "VtsHalTargetTestDefaults"],
     srcs: ["MapperVts.cpp"],
     cflags: [
         "-O0",
         "-g",
     ],
     static_libs: [
-        "VtsHalHidlTargetTestBase",
         "android.hardware.graphics.allocator@2.0",
         "android.hardware.graphics.mapper@2.0",
         "android.hardware.graphics.mapper@2.0-vts",
diff --git a/graphics/mapper/2.1/utils/vts/MapperVts.cpp b/graphics/mapper/2.1/utils/vts/MapperVts.cpp
index 36f9cbb..239de74 100644
--- a/graphics/mapper/2.1/utils/vts/MapperVts.cpp
+++ b/graphics/mapper/2.1/utils/vts/MapperVts.cpp
@@ -16,8 +16,6 @@
 
 #include <mapper-vts/2.1/MapperVts.h>
 
-#include <VtsHalHidlTargetTestBase.h>
-
 namespace android {
 namespace hardware {
 namespace graphics {
diff --git a/graphics/mapper/2.1/vts/functional/Android.bp b/graphics/mapper/2.1/vts/functional/Android.bp
index afd8e7f..bb76c74 100644
--- a/graphics/mapper/2.1/vts/functional/Android.bp
+++ b/graphics/mapper/2.1/vts/functional/Android.bp
@@ -26,5 +26,5 @@
         "android.hardware.graphics.mapper@2.0-vts",
         "android.hardware.graphics.mapper@2.1-vts",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/graphics/mapper/2.1/vts/functional/VtsHalGraphicsMapperV2_1TargetTest.cpp b/graphics/mapper/2.1/vts/functional/VtsHalGraphicsMapperV2_1TargetTest.cpp
index 5e7cf93..1185945 100644
--- a/graphics/mapper/2.1/vts/functional/VtsHalGraphicsMapperV2_1TargetTest.cpp
+++ b/graphics/mapper/2.1/vts/functional/VtsHalGraphicsMapperV2_1TargetTest.cpp
@@ -16,9 +16,11 @@
 
 #define LOG_TAG "VtsHalGraphicsMapperV2_1TargetTest"
 
-#include <VtsHalHidlTargetTestBase.h>
 #include <android-base/logging.h>
 #include <android/hardware/graphics/mapper/2.1/IMapper.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 #include <mapper-vts/2.1/MapperVts.h>
 
 namespace android {
@@ -34,28 +36,12 @@
 using android::hardware::graphics::common::V1_1::PixelFormat;
 using V2_0::Error;
 
-// Test environment for graphics.mapper.
-class GraphicsMapperHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static GraphicsMapperHidlEnvironment* Instance() {
-        static GraphicsMapperHidlEnvironment* instance = new GraphicsMapperHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override {
-        registerTestService<IAllocator>();
-        registerTestService<IMapper>();
-    }
-};
-
-class GraphicsMapperHidlTest : public ::testing::VtsHalHidlTargetTestBase {
-   protected:
+class GraphicsMapperHidlTest
+    : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
+  protected:
     void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(
-            mGralloc = std::make_unique<Gralloc>(
-                GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
-                GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+        ASSERT_NO_FATAL_FAILURE(mGralloc = std::make_unique<Gralloc>(std::get<0>(GetParam()),
+                                                                     std::get<1>(GetParam())));
 
         mDummyDescriptorInfo.width = 64;
         mDummyDescriptorInfo.height = 64;
@@ -74,7 +60,7 @@
 /**
  * Test that IMapper::validateBufferSize works.
  */
-TEST_F(GraphicsMapperHidlTest, ValidateBufferSizeBasic) {
+TEST_P(GraphicsMapperHidlTest, ValidateBufferSizeBasic) {
     const native_handle_t* bufferHandle;
     uint32_t stride;
     ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true, &stride));
@@ -87,7 +73,7 @@
 /**
  * Test IMapper::validateBufferSize with invalid buffers.
  */
-TEST_F(GraphicsMapperHidlTest, ValidateBufferSizeBadBuffer) {
+TEST_P(GraphicsMapperHidlTest, ValidateBufferSizeBadBuffer) {
     native_handle_t* invalidHandle = nullptr;
     Error ret = mGralloc->getMapper()->validateBufferSize(invalidHandle, mDummyDescriptorInfo,
                                                           mDummyDescriptorInfo.width);
@@ -114,7 +100,7 @@
 /**
  * Test IMapper::validateBufferSize with invalid descriptor and/or stride.
  */
-TEST_F(GraphicsMapperHidlTest, ValidateBufferSizeBadValue) {
+TEST_P(GraphicsMapperHidlTest, ValidateBufferSizeBadValue) {
     auto info = mDummyDescriptorInfo;
     info.width = 1024;
     info.height = 1024;
@@ -161,7 +147,7 @@
 /**
  * Test IMapper::getTransportSize.
  */
-TEST_F(GraphicsMapperHidlTest, GetTransportSizeBasic) {
+TEST_P(GraphicsMapperHidlTest, GetTransportSizeBasic) {
     const native_handle_t* bufferHandle;
     uint32_t numFds;
     uint32_t numInts;
@@ -173,7 +159,7 @@
 /**
  * Test IMapper::getTransportSize with invalid buffers.
  */
-TEST_F(GraphicsMapperHidlTest, GetTransportSizeBadBuffer) {
+TEST_P(GraphicsMapperHidlTest, GetTransportSizeBadBuffer) {
     native_handle_t* invalidHandle = nullptr;
     mGralloc->getMapper()->getTransportSize(
         invalidHandle, [&](const auto& tmpError, const auto&, const auto&) {
@@ -203,14 +189,14 @@
 /**
  * Test IMapper::createDescriptor with valid descriptor info.
  */
-TEST_F(GraphicsMapperHidlTest, CreateDescriptor_2_1Basic) {
+TEST_P(GraphicsMapperHidlTest, CreateDescriptor_2_1Basic) {
     ASSERT_NO_FATAL_FAILURE(mGralloc->createDescriptor(mDummyDescriptorInfo));
 }
 
 /**
  * Test IMapper::createDescriptor with invalid descriptor info.
  */
-TEST_F(GraphicsMapperHidlTest, CreateDescriptor_2_1Negative) {
+TEST_P(GraphicsMapperHidlTest, CreateDescriptor_2_1Negative) {
     auto info = mDummyDescriptorInfo;
     info.width = 0;
     mGralloc->getMapper()->createDescriptor_2_1(info, [&](const auto& tmpError, const auto&) {
@@ -218,22 +204,18 @@
     });
 }
 
+INSTANTIATE_TEST_CASE_P(
+        PerInstance, GraphicsMapperHidlTest,
+        testing::Combine(
+                testing::ValuesIn(
+                        android::hardware::getAllHalInstanceNames(IAllocator::descriptor)),
+                testing::ValuesIn(android::hardware::getAllHalInstanceNames(IMapper::descriptor))),
+        android::hardware::PrintInstanceTupleNameToString<>);
+
 }  // namespace
 }  // namespace vts
 }  // namespace V2_1
 }  // namespace mapper
 }  // namespace graphics
 }  // namespace hardware
-}  // namespace android
-
-int main(int argc, char** argv) {
-    using android::hardware::graphics::mapper::V2_1::vts::GraphicsMapperHidlEnvironment;
-    ::testing::AddGlobalTestEnvironment(GraphicsMapperHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    GraphicsMapperHidlEnvironment::Instance()->init(&argc, argv);
-
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-
-    return status;
-}
+}  // namespace android
\ No newline at end of file
diff --git a/graphics/mapper/3.0/utils/vts/MapperVts.cpp b/graphics/mapper/3.0/utils/vts/MapperVts.cpp
index c94e8db..de886a9 100644
--- a/graphics/mapper/3.0/utils/vts/MapperVts.cpp
+++ b/graphics/mapper/3.0/utils/vts/MapperVts.cpp
@@ -16,8 +16,6 @@
 
 #include <mapper-vts/3.0/MapperVts.h>
 
-#include <VtsHalHidlTargetTestBase.h>
-
 namespace android {
 namespace hardware {
 namespace graphics {
@@ -35,19 +33,19 @@
 }
 
 void Gralloc::init(const std::string& allocatorServiceName, const std::string& mapperServiceName) {
-    mAllocator = ::testing::VtsHalHidlTargetTestBase::getService<IAllocator>(allocatorServiceName);
+    mAllocator = IAllocator::getService(allocatorServiceName);
     ASSERT_NE(nullptr, mAllocator.get()) << "failed to get allocator service";
 
-    mMapper = ::testing::VtsHalHidlTargetTestBase::getService<IMapper>(mapperServiceName);
+    mMapper = IMapper::getService(mapperServiceName);
     ASSERT_NE(nullptr, mMapper.get()) << "failed to get mapper service";
     ASSERT_FALSE(mMapper->isRemote()) << "mapper is not in passthrough mode";
 }
 
 void Gralloc::initNoErr(const std::string& allocatorServiceName,
                         const std::string& mapperServiceName) {
-    mAllocator = ::testing::VtsHalHidlTargetTestBase::getService<IAllocator>(allocatorServiceName);
+    mAllocator = IAllocator::getService(allocatorServiceName);
 
-    mMapper = ::testing::VtsHalHidlTargetTestBase::getService<IMapper>(mapperServiceName);
+    mMapper = IMapper::getService(mapperServiceName);
     if (mMapper.get()) {
         ASSERT_FALSE(mMapper->isRemote()) << "mapper is not in passthrough mode";
     }
diff --git a/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h b/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h
index 1141a88..b2fbebb1 100644
--- a/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h
+++ b/graphics/mapper/3.0/utils/vts/include/mapper-vts/3.0/MapperVts.h
@@ -22,6 +22,7 @@
 
 #include <android/hardware/graphics/allocator/3.0/IAllocator.h>
 #include <android/hardware/graphics/mapper/3.0/IMapper.h>
+#include <gtest/gtest.h>
 #include <utils/StrongPointer.h>
 
 namespace android {
diff --git a/graphics/mapper/3.0/vts/functional/Android.bp b/graphics/mapper/3.0/vts/functional/Android.bp
index 77075a5..f01670e 100644
--- a/graphics/mapper/3.0/vts/functional/Android.bp
+++ b/graphics/mapper/3.0/vts/functional/Android.bp
@@ -26,5 +26,5 @@
         "android.hardware.graphics.mapper@3.0",
         "android.hardware.graphics.mapper@3.0-vts",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/graphics/mapper/3.0/vts/functional/VtsHalGraphicsMapperV3_0TargetTest.cpp b/graphics/mapper/3.0/vts/functional/VtsHalGraphicsMapperV3_0TargetTest.cpp
index ff73ecf..92b5994 100644
--- a/graphics/mapper/3.0/vts/functional/VtsHalGraphicsMapperV3_0TargetTest.cpp
+++ b/graphics/mapper/3.0/vts/functional/VtsHalGraphicsMapperV3_0TargetTest.cpp
@@ -20,8 +20,10 @@
 #include <thread>
 #include <vector>
 
-#include <VtsHalHidlTargetTestBase.h>
 #include <android-base/logging.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 #include <mapper-vts/3.0/MapperVts.h>
 
 namespace android {
@@ -35,28 +37,12 @@
 using android::hardware::graphics::common::V1_2::BufferUsage;
 using android::hardware::graphics::common::V1_2::PixelFormat;
 
-// Test environment for graphics.mapper.
-class GraphicsMapperHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static GraphicsMapperHidlEnvironment* Instance() {
-        static GraphicsMapperHidlEnvironment* instance = new GraphicsMapperHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override {
-        registerTestService<IAllocator>();
-        registerTestService<IMapper>();
-    }
-};
-
-class GraphicsMapperHidlTest : public ::testing::VtsHalHidlTargetTestBase {
-   protected:
+class GraphicsMapperHidlTest
+    : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
+  protected:
     void SetUp() override {
-        ASSERT_NO_FATAL_FAILURE(
-            mGralloc = std::make_unique<Gralloc>(
-                GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
-                GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+        ASSERT_NO_FATAL_FAILURE(mGralloc = std::make_unique<Gralloc>(std::get<0>(GetParam()),
+                                                                     std::get<1>(GetParam())));
 
         mDummyDescriptorInfo.width = 64;
         mDummyDescriptorInfo.height = 64;
@@ -75,14 +61,14 @@
 /**
  * Test IAllocator::dumpDebugInfo by calling it.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorDumpDebugInfo) {
+TEST_P(GraphicsMapperHidlTest, AllocatorDumpDebugInfo) {
     mGralloc->dumpDebugInfo();
 }
 
 /**
  * Test IAllocator::allocate with valid buffer descriptors.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorAllocate) {
+TEST_P(GraphicsMapperHidlTest, AllocatorAllocate) {
     BufferDescriptor descriptor;
     ASSERT_NO_FATAL_FAILURE(descriptor = mGralloc->createDescriptor(mDummyDescriptorInfo));
 
@@ -105,7 +91,7 @@
 /**
  * Test IAllocator::allocate with invalid buffer descriptors.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorAllocateNegative) {
+TEST_P(GraphicsMapperHidlTest, AllocatorAllocateNegative) {
     // this assumes any valid descriptor is non-empty
     BufferDescriptor descriptor;
     mGralloc->getAllocator()->allocate(descriptor, 1,
@@ -117,7 +103,7 @@
 /**
  * Test IAllocator::allocate does not leak.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorAllocateNoLeak) {
+TEST_P(GraphicsMapperHidlTest, AllocatorAllocateNoLeak) {
     auto info = mDummyDescriptorInfo;
     info.width = 1024;
     info.height = 1024;
@@ -131,7 +117,7 @@
 /**
  * Test that IAllocator::allocate is thread-safe.
  */
-TEST_F(GraphicsMapperHidlTest, AllocatorAllocateThreaded) {
+TEST_P(GraphicsMapperHidlTest, AllocatorAllocateThreaded) {
     BufferDescriptor descriptor;
     ASSERT_NO_FATAL_FAILURE(descriptor = mGralloc->createDescriptor(mDummyDescriptorInfo));
 
@@ -161,14 +147,14 @@
 /**
  * Test IMapper::createDescriptor with valid descriptor info.
  */
-TEST_F(GraphicsMapperHidlTest, CreateDescriptorBasic) {
+TEST_P(GraphicsMapperHidlTest, CreateDescriptorBasic) {
     ASSERT_NO_FATAL_FAILURE(mGralloc->createDescriptor(mDummyDescriptorInfo));
 }
 
 /**
  * Test IMapper::createDescriptor with invalid descriptor info.
  */
-TEST_F(GraphicsMapperHidlTest, CreateDescriptorNegative) {
+TEST_P(GraphicsMapperHidlTest, CreateDescriptorNegative) {
     auto info = mDummyDescriptorInfo;
     info.width = 0;
     mGralloc->getMapper()->createDescriptor(info, [&](const auto& tmpError, const auto&) {
@@ -179,7 +165,7 @@
 /**
  * Test IMapper::importBuffer and IMapper::freeBuffer with allocated buffers.
  */
-TEST_F(GraphicsMapperHidlTest, ImportFreeBufferBasic) {
+TEST_P(GraphicsMapperHidlTest, ImportFreeBufferBasic) {
     const native_handle_t* bufferHandle;
     ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(mDummyDescriptorInfo, true));
     ASSERT_NO_FATAL_FAILURE(mGralloc->freeBuffer(bufferHandle));
@@ -188,7 +174,7 @@
 /**
  * Test IMapper::importBuffer and IMapper::freeBuffer with cloned buffers.
  */
-TEST_F(GraphicsMapperHidlTest, ImportFreeBufferClone) {
+TEST_P(GraphicsMapperHidlTest, ImportFreeBufferClone) {
     const native_handle_t* clonedBufferHandle;
     ASSERT_NO_FATAL_FAILURE(clonedBufferHandle = mGralloc->allocate(mDummyDescriptorInfo, false));
 
@@ -206,7 +192,7 @@
 /**
  * Test IMapper::importBuffer and IMapper::freeBuffer cross mapper instances.
  */
-TEST_F(GraphicsMapperHidlTest, ImportFreeBufferSingleton) {
+TEST_P(GraphicsMapperHidlTest, ImportFreeBufferSingleton) {
     const native_handle_t* rawHandle;
     ASSERT_NO_FATAL_FAILURE(rawHandle = mGralloc->allocate(mDummyDescriptorInfo, false));
 
@@ -218,10 +204,8 @@
 
     // free the imported handle with another mapper
     std::unique_ptr<Gralloc> anotherGralloc;
-    ASSERT_NO_FATAL_FAILURE(
-        anotherGralloc = std::make_unique<Gralloc>(
-            GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
-            GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+    ASSERT_NO_FATAL_FAILURE(anotherGralloc = std::make_unique<Gralloc>(std::get<0>(GetParam()),
+                                                                       std::get<1>(GetParam())));
     Error error = mGralloc->getMapper()->freeBuffer(importedHandle);
     ASSERT_EQ(Error::NONE, error);
 
@@ -231,7 +215,7 @@
 /**
  * Test IMapper::importBuffer and IMapper::freeBuffer do not leak.
  */
-TEST_F(GraphicsMapperHidlTest, ImportFreeBufferNoLeak) {
+TEST_P(GraphicsMapperHidlTest, ImportFreeBufferNoLeak) {
     auto info = mDummyDescriptorInfo;
     info.width = 1024;
     info.height = 1024;
@@ -245,7 +229,7 @@
 /**
  * Test IMapper::importBuffer with invalid buffers.
  */
-TEST_F(GraphicsMapperHidlTest, ImportBufferNegative) {
+TEST_P(GraphicsMapperHidlTest, ImportBufferNegative) {
     native_handle_t* invalidHandle = nullptr;
     mGralloc->getMapper()->importBuffer(invalidHandle, [&](const auto& tmpError, const auto&) {
         EXPECT_EQ(Error::BAD_BUFFER, tmpError)
@@ -263,7 +247,7 @@
 /**
  * Test IMapper::freeBuffer with invalid buffers.
  */
-TEST_F(GraphicsMapperHidlTest, FreeBufferNegative) {
+TEST_P(GraphicsMapperHidlTest, FreeBufferNegative) {
     native_handle_t* invalidHandle = nullptr;
     Error error = mGralloc->getMapper()->freeBuffer(invalidHandle);
     EXPECT_EQ(Error::BAD_BUFFER, error) << "freeBuffer with nullptr did not fail with BAD_BUFFER";
@@ -286,7 +270,7 @@
 /**
  * Test IMapper::lock and IMapper::unlock.
  */
-TEST_F(GraphicsMapperHidlTest, LockUnlockBasic) {
+TEST_P(GraphicsMapperHidlTest, LockUnlockBasic) {
     const auto& info = mDummyDescriptorInfo;
 
     const native_handle_t* bufferHandle;
@@ -346,7 +330,7 @@
  * Test IMapper::lockYCbCr.  This locks a YV12 buffer, and makes sure we can
  * write to and read from it.
  */
-TEST_F(GraphicsMapperHidlTest, LockYCbCrBasic) {
+TEST_P(GraphicsMapperHidlTest, LockYCbCrBasic) {
     auto info = mDummyDescriptorInfo;
     info.format = PixelFormat::YV12;
 
@@ -405,7 +389,7 @@
 /**
  * Test IMapper::unlock with invalid buffers.
  */
-TEST_F(GraphicsMapperHidlTest, UnlockNegative) {
+TEST_P(GraphicsMapperHidlTest, UnlockNegative) {
     native_handle_t* invalidHandle = nullptr;
     mGralloc->getMapper()->unlock(invalidHandle, [&](const auto& tmpError, const auto&) {
         EXPECT_EQ(Error::BAD_BUFFER, tmpError)
@@ -443,7 +427,7 @@
 /**
  * Test IMapper::isSupported with required format RGBA_8888
  */
-TEST_F(GraphicsMapperHidlTest, IsSupportedRGBA8888) {
+TEST_P(GraphicsMapperHidlTest, IsSupportedRGBA8888) {
     const auto& info = mDummyDescriptorInfo;
     bool supported = false;
 
@@ -454,7 +438,7 @@
 /**
  * Test IMapper::isSupported with required format YV12
  */
-TEST_F(GraphicsMapperHidlTest, IsSupportedYV12) {
+TEST_P(GraphicsMapperHidlTest, IsSupportedYV12) {
     auto info = mDummyDescriptorInfo;
     info.format = PixelFormat::YV12;
     bool supported = false;
@@ -466,7 +450,7 @@
 /**
  * Test IMapper::isSupported with optional format Y16
  */
-TEST_F(GraphicsMapperHidlTest, IsSupportedY16) {
+TEST_P(GraphicsMapperHidlTest, IsSupportedY16) {
     auto info = mDummyDescriptorInfo;
     info.format = PixelFormat::Y16;
     bool supported = false;
@@ -474,6 +458,14 @@
     ASSERT_NO_FATAL_FAILURE(supported = mGralloc->isSupported(info));
 }
 
+INSTANTIATE_TEST_CASE_P(
+        PerInstance, GraphicsMapperHidlTest,
+        testing::Combine(
+                testing::ValuesIn(
+                        android::hardware::getAllHalInstanceNames(IAllocator::descriptor)),
+                testing::ValuesIn(android::hardware::getAllHalInstanceNames(IMapper::descriptor))),
+        android::hardware::PrintInstanceTupleNameToString<>);
+
 }  // namespace
 }  // namespace vts
 }  // namespace V3_0
@@ -481,13 +473,3 @@
 }  // namespace graphics
 }  // namespace hardware
 }  // namespace android
-
-int main(int argc, char** argv) {
-    using android::hardware::graphics::mapper::V3_0::vts::GraphicsMapperHidlEnvironment;
-    ::testing::AddGlobalTestEnvironment(GraphicsMapperHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    GraphicsMapperHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
diff --git a/graphics/mapper/4.0/IMapper.hal b/graphics/mapper/4.0/IMapper.hal
index 298f31e..03dfef1 100644
--- a/graphics/mapper/4.0/IMapper.hal
+++ b/graphics/mapper/4.0/IMapper.hal
@@ -56,6 +56,12 @@
          * BufferUsage.
          */
         bitfield<BufferUsage> usage;
+
+        /**
+         * The size in bytes of the reserved region associated with the buffer.
+         * See getReservedRegion for more information.
+         */
+        uint64_t reservedSize;
     };
 
     struct Rect {
@@ -71,9 +77,10 @@
      *
      * Since the buffer descriptor fully describes a buffer, any device
      * dependent or device independent checks must be performed here whenever
-     * possible. Specifically, when layered buffers are not supported, this
-     * function must return `UNSUPPORTED` if `description.layers` is great than
-     * 1.
+     * possible. When layered buffers are not supported, this function must
+     * return `UNSUPPORTED` if `description.layers` is great than 1. This
+     * function may return `UNSUPPORTED` if `description.reservedSize` is
+     * larger than a page.
      *
      * @param description Attributes of the descriptor.
      * @return error Error status of the call, which may be
@@ -259,6 +266,50 @@
     unlock(pointer buffer) generates (Error error, handle releaseFence);
 
     /**
+     * Flushes the contents of a locked buffer.
+     *
+     * This function flushes the CPUs caches for the range of all the buffer's
+     * planes and metadata. This should behave similarly to unlock() except the
+     * buffer should remain mapped to the CPU.
+     *
+     * The client is still responsible for calling unlock() when it is done
+     * with all CPU accesses to the buffer.
+     *
+     * If non-CPU blocks are simultaneously writing the buffer, the locked
+     * copy should still be flushed but what happens is undefined except that
+     * it should not cause any crashes.
+     *
+     * @param buffer Buffer to flush.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid or not locked.
+     * @return releaseFence Handle containing a file descriptor referring to a
+     *     sync fence object. The sync fence object will be signaled when the
+     *     mapper has completed any pending work. @p releaseFence may be an
+     *     empty fence.
+     */
+    flushLockedBuffer(pointer buffer) generates (Error error, handle releaseFence);
+
+    /**
+     * Rereads the contents of a locked buffer.
+     *
+     * This should fetch the most recent copy of the locked buffer.
+     *
+     * It may reread locked copies of the buffer in other processes.
+     *
+     * The client is still responsible for calling unlock() when it is done
+     * with all CPU accesses to the buffer.
+     *
+     * @param buffer Buffer to reread.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid or not locked.
+     *     - `NO_RESOURCES` if the buffer cannot be reread at this time. Note
+     *       that rereading may succeed at a later time.
+     */
+    rereadLockedBuffer(pointer buffer) generates(Error error);
+
+    /**
      * Test whether the given BufferDescriptorInfo is allocatable.
      *
      * If this function returns true, it means that a buffer with the given
@@ -560,5 +611,35 @@
      */
     dumpBuffers()
             generates (Error error, vec<BufferDump> bufferDumps);
+
+    /**
+     * Returns the region of shared memory associated with the buffer that is
+     * reserved for client use.
+     *
+     * The shared memory may be allocated from any shared memory allocator.
+     * The shared memory must be CPU-accessible and virtually contiguous. The
+     * starting address must be word-aligned.
+     *
+     * This function may only be called after importBuffer() has been called by the
+     * client. The reserved region must remain accessible until freeBuffer() has
+     * been called. After freeBuffer() has been called, the client must not access
+     * the reserved region.
+     *
+     * This reserved memory may be used in future versions of Android to
+     * help clients implement backwards compatible features without requiring
+     * IAllocator/IMapper updates.
+     *
+     * @param buffer Imported buffer handle.
+     * @return error Error status of the call, which may be
+     *     - `NONE` upon success.
+     *     - `BAD_BUFFER` if the buffer is invalid.
+     * @return reservedRegion CPU-accessible pointer to the reserved region
+     * @return reservedSize the size of the reservedRegion that was requested
+     *    in the BufferDescriptorInfo.
+     */
+    getReservedRegion(pointer buffer)
+            generates (Error error,
+                       pointer reservedRegion,
+                       uint64_t reservedSize);
 };
 
diff --git a/graphics/mapper/4.0/utils/vts/MapperVts.cpp b/graphics/mapper/4.0/utils/vts/MapperVts.cpp
index 8073e69..c317ed2 100644
--- a/graphics/mapper/4.0/utils/vts/MapperVts.cpp
+++ b/graphics/mapper/4.0/utils/vts/MapperVts.cpp
@@ -246,6 +246,34 @@
     return releaseFence;
 }
 
+int Gralloc::flushLockedBuffer(const native_handle_t* bufferHandle) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    int releaseFence = -1;
+    mMapper->flushLockedBuffer(buffer, [&](const auto& tmpError, const auto& tmpReleaseFence) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to flush locked buffer " << buffer;
+
+        auto fenceHandle = tmpReleaseFence.getNativeHandle();
+        if (fenceHandle) {
+            ASSERT_EQ(0, fenceHandle->numInts) << "invalid fence handle " << fenceHandle;
+            if (fenceHandle->numFds == 1) {
+                releaseFence = dup(fenceHandle->data[0]);
+                ASSERT_LT(0, releaseFence) << "failed to dup fence fd";
+            } else {
+                ASSERT_EQ(0, fenceHandle->numFds) << " invalid fence handle " << fenceHandle;
+            }
+        }
+    });
+
+    return releaseFence;
+}
+
+void Gralloc::rereadLockedBuffer(const native_handle_t* bufferHandle) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    ASSERT_EQ(Error::NONE, mMapper->rereadLockedBuffer(buffer));
+}
+
 bool Gralloc::validateBufferSize(const native_handle_t* bufferHandle,
                                  const IMapper::BufferDescriptorInfo& descriptorInfo,
                                  uint32_t stride) {
@@ -310,6 +338,19 @@
     return err;
 }
 
+Error Gralloc::getReservedRegion(const native_handle_t* bufferHandle, void** outReservedRegion,
+                                 uint64_t* outReservedSize) {
+    Error err;
+    mMapper->getReservedRegion(
+            const_cast<native_handle_t*>(bufferHandle),
+            [&](const auto& tmpError, const auto& tmpReservedRegion, const auto& tmpReservedSize) {
+                err = tmpError;
+                *outReservedRegion = tmpReservedRegion;
+                *outReservedSize = tmpReservedSize;
+            });
+    return err;
+}
+
 }  // namespace vts
 }  // namespace V4_0
 }  // namespace mapper
diff --git a/graphics/mapper/4.0/utils/vts/include/mapper-vts/4.0/MapperVts.h b/graphics/mapper/4.0/utils/vts/include/mapper-vts/4.0/MapperVts.h
index 6251e66..eed043f 100644
--- a/graphics/mapper/4.0/utils/vts/include/mapper-vts/4.0/MapperVts.h
+++ b/graphics/mapper/4.0/utils/vts/include/mapper-vts/4.0/MapperVts.h
@@ -73,6 +73,9 @@
                const IMapper::Rect& accessRegion, int acquireFence);
     int unlock(const native_handle_t* bufferHandle);
 
+    int flushLockedBuffer(const native_handle_t* bufferHandle);
+    void rereadLockedBuffer(const native_handle_t* bufferHandle);
+
     bool validateBufferSize(const native_handle_t* bufferHandle,
                             const IMapper::BufferDescriptorInfo& descriptorInfo, uint32_t stride);
     void getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
@@ -90,6 +93,9 @@
                                       const IMapper::MetadataType& metadataType,
                                       hidl_vec<uint8_t>* outVec);
 
+    Error getReservedRegion(const native_handle_t* bufferHandle, void** outReservedRegion,
+                            uint64_t* outReservedSize);
+
   private:
     void init(const std::string& allocatorServiceName, const std::string& mapperServiceName);
 
diff --git a/graphics/mapper/4.0/vts/functional/Android.bp b/graphics/mapper/4.0/vts/functional/Android.bp
index a8030ab..506026d 100644
--- a/graphics/mapper/4.0/vts/functional/Android.bp
+++ b/graphics/mapper/4.0/vts/functional/Android.bp
@@ -20,6 +20,7 @@
     srcs: ["VtsHalGraphicsMapperV4_0TargetTest.cpp"],
     static_libs: [
         "android.hardware.graphics.mapper@4.0-vts",
+        "libsync",
     ],
     shared_libs: [
         "android.hardware.graphics.allocator@4.0",
diff --git a/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp b/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
index d63b078..347eca6 100644
--- a/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
+++ b/graphics/mapper/4.0/vts/functional/VtsHalGraphicsMapperV4_0TargetTest.cpp
@@ -16,6 +16,7 @@
 
 #define LOG_TAG "VtsHalGraphicsMapperV4_0TargetTest"
 
+#include <unistd.h>
 #include <chrono>
 #include <thread>
 #include <vector>
@@ -24,6 +25,7 @@
 
 #include <VtsHalHidlTargetTestBase.h>
 #include <android-base/logging.h>
+#include <android/sync.h>
 #include <gralloctypes/Gralloc4.h>
 #include <mapper-vts/4.0/MapperVts.h>
 #include <system/graphics.h>
@@ -82,6 +84,7 @@
         mDummyDescriptorInfo.format = PixelFormat::RGBA_8888;
         mDummyDescriptorInfo.usage =
                 static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN | BufferUsage::CPU_READ_OFTEN);
+        mDummyDescriptorInfo.reservedSize = 0;
     }
 
     void TearDown() override {}
@@ -273,6 +276,24 @@
         ASSERT_NE(nullptr, outYCbCr->cr);
     }
 
+    void fillRGBA8888(uint8_t* data, uint32_t height, size_t strideInBytes, size_t widthInBytes,
+                      uint32_t seed = 0) {
+        for (uint32_t y = 0; y < height; y++) {
+            memset(data, y + seed, widthInBytes);
+            data += strideInBytes;
+        }
+    }
+
+    void verifyRGBA8888(uint8_t* data, uint32_t height, size_t strideInBytes, size_t widthInBytes,
+                        uint32_t seed = 0) {
+        for (uint32_t y = 0; y < height; y++) {
+            for (size_t i = 0; i < widthInBytes; i++) {
+                EXPECT_EQ(static_cast<uint8_t>(y + seed), data[i]);
+            }
+            data += strideInBytes;
+        }
+    }
+
     std::unique_ptr<Gralloc> mGralloc;
     IMapper::BufferDescriptorInfo mDummyDescriptorInfo{};
     static const std::set<StandardMetadataType> sRequiredMetadataTypes;
@@ -529,25 +550,14 @@
             data = static_cast<uint8_t*>(mGralloc->lock(bufferHandle, info.usage, region, fence)));
 
     // RGBA_8888
-    size_t strideInBytes = stride * 4;
-    size_t writeInBytes = info.width * 4;
-
-    for (uint32_t y = 0; y < info.height; y++) {
-        memset(data, y, writeInBytes);
-        data += strideInBytes;
-    }
+    fillRGBA8888(data, info.height, stride * 4, info.width * 4);
 
     ASSERT_NO_FATAL_FAILURE(fence = mGralloc->unlock(bufferHandle));
 
     // lock again for reading
     ASSERT_NO_FATAL_FAILURE(
             data = static_cast<uint8_t*>(mGralloc->lock(bufferHandle, info.usage, region, fence)));
-    for (uint32_t y = 0; y < info.height; y++) {
-        for (size_t i = 0; i < writeInBytes; i++) {
-            EXPECT_EQ(static_cast<uint8_t>(y), data[i]);
-        }
-        data += strideInBytes;
-    }
+    ASSERT_NO_FATAL_FAILURE(verifyRGBA8888(data, info.height, stride * 4, info.width * 4));
 
     ASSERT_NO_FATAL_FAILURE(fence = mGralloc->unlock(bufferHandle));
     if (fence >= 0) {
@@ -706,6 +716,75 @@
 }
 
 /**
+ * Test IMapper::flush and IMapper::reread.
+ */
+TEST_F(GraphicsMapperHidlTest, FlushRereadBasic) {
+    const auto& info = mDummyDescriptorInfo;
+
+    const native_handle_t* rawHandle;
+    uint32_t stride;
+    ASSERT_NO_FATAL_FAILURE(
+            rawHandle = mGralloc->allocate(mDummyDescriptorInfo, false, false, &stride));
+
+    const native_handle_t* writeBufferHandle;
+    const native_handle_t* readBufferHandle;
+    ASSERT_NO_FATAL_FAILURE(writeBufferHandle = mGralloc->importBuffer(rawHandle));
+    ASSERT_NO_FATAL_FAILURE(readBufferHandle = mGralloc->importBuffer(rawHandle));
+
+    // lock buffer for writing
+    const IMapper::Rect region{0, 0, static_cast<int32_t>(info.width),
+                               static_cast<int32_t>(info.height)};
+    uint8_t* writeData;
+    ASSERT_NO_FATAL_FAILURE(
+            writeData = static_cast<uint8_t*>(mGralloc->lock(
+                    writeBufferHandle, static_cast<uint64_t>(BufferUsage::CPU_WRITE_OFTEN), region,
+                    -1)));
+
+    uint8_t* readData;
+    ASSERT_NO_FATAL_FAILURE(
+            readData = static_cast<uint8_t*>(mGralloc->lock(
+                    readBufferHandle, static_cast<uint64_t>(BufferUsage::CPU_READ_OFTEN), region,
+                    -1)));
+
+    fillRGBA8888(writeData, info.height, stride * 4, info.width * 4);
+
+    int fence;
+    ASSERT_NO_FATAL_FAILURE(fence = mGralloc->flushLockedBuffer(writeBufferHandle));
+    ASSERT_EQ(0, sync_wait(fence, 3500));
+    close(fence);
+
+    ASSERT_NO_FATAL_FAILURE(mGralloc->rereadLockedBuffer(readBufferHandle));
+
+    ASSERT_NO_FATAL_FAILURE(verifyRGBA8888(readData, info.height, stride * 4, info.width * 4));
+
+    ASSERT_NO_FATAL_FAILURE(fence = mGralloc->unlock(readBufferHandle));
+    if (fence >= 0) {
+        close(fence);
+    }
+    ASSERT_NO_FATAL_FAILURE(fence = mGralloc->unlock(writeBufferHandle));
+    if (fence >= 0) {
+        close(fence);
+    }
+}
+
+/**
+ * Test IMapper::flushLockedBuffer with bad buffer
+ */
+TEST_F(GraphicsMapperHidlTest, FlushLockedBufferBadBuffer) {
+    ASSERT_NO_FATAL_FAILURE(mGralloc->getMapper()->flushLockedBuffer(
+            nullptr, [&](const auto& tmpError, const auto& /*tmpReleaseFence*/) {
+                ASSERT_EQ(Error::BAD_BUFFER, tmpError);
+            }));
+}
+
+/**
+ * Test IMapper::rereadLockedBuffer with bad buffer
+ */
+TEST_F(GraphicsMapperHidlTest, RereadLockedBufferBadBuffer) {
+    ASSERT_EQ(Error::BAD_BUFFER, mGralloc->getMapper()->rereadLockedBuffer(nullptr));
+}
+
+/**
  * Test IMapper::isSupported with required format RGBA_8888
  */
 TEST_F(GraphicsMapperHidlTest, IsSupportedRGBA8888) {
@@ -1821,6 +1900,124 @@
     }
 }
 
+/**
+ * Test IMapper::getReservedRegion()
+ */
+TEST_F(GraphicsMapperHidlTest, GetReservedRegion) {
+    const native_handle_t* bufferHandle = nullptr;
+    auto info = mDummyDescriptorInfo;
+
+    const int pageSize = getpagesize();
+    ASSERT_GE(0, pageSize);
+    std::vector<uint64_t> requestedReservedSizes{1, 10, 333, static_cast<uint64_t>(pageSize) / 2,
+                                                 static_cast<uint64_t>(pageSize)};
+
+    for (auto requestedReservedSize : requestedReservedSizes) {
+        info.reservedSize = requestedReservedSize;
+
+        ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true));
+
+        void* reservedRegion = nullptr;
+        uint64_t reservedSize = 0;
+        ASSERT_EQ(Error::NONE,
+                  mGralloc->getReservedRegion(bufferHandle, &reservedRegion, &reservedSize));
+        ASSERT_NE(nullptr, reservedRegion);
+        ASSERT_EQ(requestedReservedSize, reservedSize);
+
+        uint8_t testValue = 1;
+        memset(reservedRegion, testValue, reservedSize);
+        for (uint64_t i = 0; i < reservedSize; i++) {
+            ASSERT_EQ(testValue, static_cast<uint8_t*>(reservedRegion)[i]);
+        }
+    }
+}
+
+/**
+ * Test IMapper::getReservedRegion() request over a page
+ */
+TEST_F(GraphicsMapperHidlTest, GetLargeReservedRegion) {
+    const native_handle_t* bufferHandle = nullptr;
+    auto info = mDummyDescriptorInfo;
+
+    const int pageSize = getpagesize();
+    ASSERT_GE(0, pageSize);
+    std::vector<uint64_t> requestedReservedSizes{static_cast<uint64_t>(pageSize) * 2,
+                                                 static_cast<uint64_t>(pageSize) * 10,
+                                                 static_cast<uint64_t>(pageSize) * 1000};
+
+    for (auto requestedReservedSize : requestedReservedSizes) {
+        info.reservedSize = requestedReservedSize;
+
+        BufferDescriptor descriptor;
+        ASSERT_NO_FATAL_FAILURE(descriptor = mGralloc->createDescriptor(info));
+
+        Error err;
+        mGralloc->getAllocator()->allocate(
+                descriptor, 1,
+                [&](const auto& tmpError, const auto&, const auto&) { err = tmpError; });
+        if (err == Error::UNSUPPORTED) {
+            continue;
+        }
+        ASSERT_EQ(Error::NONE, err);
+
+        void* reservedRegion = nullptr;
+        uint64_t reservedSize = 0;
+        err = mGralloc->getReservedRegion(bufferHandle, &reservedRegion, &reservedSize);
+
+        ASSERT_EQ(Error::NONE, err);
+        ASSERT_NE(nullptr, reservedRegion);
+        ASSERT_EQ(requestedReservedSize, reservedSize);
+    }
+}
+
+/**
+ * Test IMapper::getReservedRegion() across multiple mappers
+ */
+TEST_F(GraphicsMapperHidlTest, GetReservedRegionMultiple) {
+    const native_handle_t* bufferHandle = nullptr;
+    auto info = mDummyDescriptorInfo;
+
+    const int pageSize = getpagesize();
+    ASSERT_GE(0, pageSize);
+    info.reservedSize = pageSize;
+
+    ASSERT_NO_FATAL_FAILURE(bufferHandle = mGralloc->allocate(info, true));
+
+    void* reservedRegion1 = nullptr;
+    uint64_t reservedSize1 = 0;
+    ASSERT_EQ(Error::NONE,
+              mGralloc->getReservedRegion(bufferHandle, &reservedRegion1, &reservedSize1));
+    ASSERT_NE(nullptr, reservedRegion1);
+    ASSERT_EQ(info.reservedSize, reservedSize1);
+
+    std::unique_ptr<Gralloc> anotherGralloc;
+    ASSERT_NO_FATAL_FAILURE(
+            anotherGralloc = std::make_unique<Gralloc>(
+                    GraphicsMapperHidlEnvironment::Instance()->getServiceName<IAllocator>(),
+                    GraphicsMapperHidlEnvironment::Instance()->getServiceName<IMapper>()));
+
+    void* reservedRegion2 = nullptr;
+    uint64_t reservedSize2 = 0;
+    ASSERT_EQ(Error::NONE,
+              mGralloc->getReservedRegion(bufferHandle, &reservedRegion2, &reservedSize2));
+    ASSERT_EQ(reservedRegion1, reservedRegion2);
+    ASSERT_EQ(reservedSize1, reservedSize2);
+}
+
+/**
+ * Test IMapper::getReservedRegion() with a bad buffer
+ */
+TEST_F(GraphicsMapperHidlTest, GetReservedRegionBadBuffer) {
+    const native_handle_t* bufferHandle = nullptr;
+
+    void* reservedRegion = nullptr;
+    uint64_t reservedSize = 0;
+    ASSERT_EQ(Error::BAD_BUFFER,
+              mGralloc->getReservedRegion(bufferHandle, &reservedRegion, &reservedSize));
+    ASSERT_EQ(nullptr, reservedRegion);
+    ASSERT_EQ(0, reservedSize);
+}
+
 }  // namespace
 }  // namespace vts
 }  // namespace V4_0
diff --git a/neuralnetworks/1.2/vts/functional/GeneratedTestHarness.cpp b/neuralnetworks/1.2/vts/functional/GeneratedTestHarness.cpp
index c1bf494..4909214 100644
--- a/neuralnetworks/1.2/vts/functional/GeneratedTestHarness.cpp
+++ b/neuralnetworks/1.2/vts/functional/GeneratedTestHarness.cpp
@@ -29,13 +29,14 @@
 #include <android/hardware/neuralnetworks/1.2/IPreparedModelCallback.h>
 #include <android/hidl/allocator/1.0/IAllocator.h>
 #include <android/hidl/memory/1.0/IMemory.h>
+#include <gtest/gtest.h>
 #include <hidlmemory/mapping.h>
 
-#include <gtest/gtest.h>
 #include <algorithm>
 #include <chrono>
 #include <iostream>
 #include <numeric>
+#include <vector>
 
 #include "1.0/Utils.h"
 #include "1.2/Callbacks.h"
@@ -333,9 +334,9 @@
 
 void EvaluatePreparedModel(const sp<IPreparedModel>& preparedModel, const TestModel& testModel,
                            bool testDynamicOutputShape) {
-    std::initializer_list<OutputType> outputTypesList;
-    std::initializer_list<MeasureTiming> measureTimingList;
-    std::initializer_list<Executor> executorList;
+    std::vector<OutputType> outputTypesList;
+    std::vector<MeasureTiming> measureTimingList;
+    std::vector<Executor> executorList;
 
     if (testDynamicOutputShape) {
         outputTypesList = {OutputType::UNSPECIFIED, OutputType::INSUFFICIENT};
diff --git a/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp b/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
index 3e947f5..f61240e 100644
--- a/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
+++ b/neuralnetworks/1.3/vts/functional/GeneratedTestHarness.cpp
@@ -34,13 +34,14 @@
 #include <android/hardware/neuralnetworks/1.3/types.h>
 #include <android/hidl/allocator/1.0/IAllocator.h>
 #include <android/hidl/memory/1.0/IMemory.h>
+#include <gtest/gtest.h>
 #include <hidlmemory/mapping.h>
 
-#include <gtest/gtest.h>
 #include <algorithm>
 #include <chrono>
 #include <iostream>
 #include <numeric>
+#include <vector>
 
 #include "1.0/Utils.h"
 #include "1.2/Callbacks.h"
@@ -368,9 +369,9 @@
 
 void EvaluatePreparedModel(const sp<IPreparedModel>& preparedModel, const TestModel& testModel,
                            TestKind testKind) {
-    std::initializer_list<OutputType> outputTypesList;
-    std::initializer_list<MeasureTiming> measureTimingList;
-    std::initializer_list<Executor> executorList;
+    std::vector<OutputType> outputTypesList;
+    std::vector<MeasureTiming> measureTimingList;
+    std::vector<Executor> executorList;
 
     switch (testKind) {
         case TestKind::GENERAL: {
@@ -403,11 +404,9 @@
                                    const TestModel& testModel,
                                    const sp<IPreparedModel>& preparedCoupledModel,
                                    const TestModel& coupledModel) {
-    std::initializer_list<OutputType> outputTypesList = {OutputType::FULLY_SPECIFIED};
-    std::initializer_list<MeasureTiming> measureTimingList = {MeasureTiming::NO,
-                                                              MeasureTiming::YES};
-    std::initializer_list<Executor> executorList = {Executor::ASYNC, Executor::SYNC,
-                                                    Executor::BURST};
+    const std::vector<OutputType> outputTypesList = {OutputType::FULLY_SPECIFIED};
+    const std::vector<MeasureTiming> measureTimingList = {MeasureTiming::NO, MeasureTiming::YES};
+    const std::vector<Executor> executorList = {Executor::ASYNC, Executor::SYNC, Executor::BURST};
 
     for (const OutputType outputType : outputTypesList) {
         for (const MeasureTiming measureTiming : measureTimingList) {
diff --git a/radio/1.5/IRadio.hal b/radio/1.5/IRadio.hal
index 6d422be..aa93ef3 100644
--- a/radio/1.5/IRadio.hal
+++ b/radio/1.5/IRadio.hal
@@ -42,16 +42,20 @@
      * -EUTRAN   - RSRP/RSRQ/RSSNR
      * -NGRAN    - SSRSRP/SSRSRQ/SSSINR
      *
-     * Note: Reporting criteria must be individually set for each RAN. For any unset reporting
-     * criteria, the value is implementation-defined.
+     * Note: Reporting criteria must be individually set for each RAN. For each RAN, if none of
+     * reporting criteria of any measurement is set enabled
+     * (see @1.5::SignalThresholdInfo.isEnabled), the reporting criteria for this RAN is
+     * implementation-defined. For each RAN, if any of reporting criteria of any measure is set
+     * enabled, the reporting criteria of the other measures in this RAN are set disabled
+     * (see @1.5::SignalThresholdInfo.isEnabled) until they are set enabled.
      *
      * Response callback is
      * IRadioResponse.setSignalStrengthReportingCriteriaResponse_1_5()
      *
      * @param serial Serial number of request.
      * @param signalThresholdInfo Signal threshold info including the threshold values,
-     *                            hysteresisDb, and hysteresisMs. See @1.5::SignalThresholdInfo
-     *                            for details.
+     *                            hysteresisDb, hysteresisMs and isEnabled.
+     *                            See @1.5::SignalThresholdInfo for details.
      * @param accessNetwork The type of network for which to apply these thresholds.
      */
     oneway setSignalStrengthReportingCriteria_1_5(int32_t serial,
diff --git a/radio/1.5/types.hal b/radio/1.5/types.hal
index 664ddc4..04a9bcf 100644
--- a/radio/1.5/types.hal
+++ b/radio/1.5/types.hal
@@ -113,6 +113,15 @@
      * A vector size of 0 disables the use of thresholds for reporting.
      */
     vec<int32_t> thresholds;
+
+    /**
+     * Indicates whether the reporting criteria of the corresponding measurement is enabled
+     * (isEnabled==true) or disabled (isEnabled==false).
+     *
+     * If enabled, modem must trigger the report based on the criteria.
+     * If disabled, modem must not trigger the report based on the criteria.
+     */
+    bool isEnabled;
 };
 
 enum AccessNetwork : @1.4::AccessNetwork {
diff --git a/radio/1.5/vts/functional/radio_hidl_hal_api.cpp b/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
index 4df5b14..6bf8170 100644
--- a/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
@@ -29,6 +29,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 10;  // hysteresisDb too large given threshold list deltas
     signalThresholdInfo.thresholds = {-109, -103, -97, -89};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::GERAN);
@@ -52,6 +53,7 @@
     signalThresholdInfo.signalMeasurement = SignalMeasurementType::RSSI;
     signalThresholdInfo.hysteresisMs = 0;
     signalThresholdInfo.hysteresisDb = 0;
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::GERAN);
@@ -76,6 +78,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 2;
     signalThresholdInfo.thresholds = {-109, -103, -97, -89};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::GERAN);
@@ -100,6 +103,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 2;
     signalThresholdInfo.thresholds = {-110, -97, -73, -49, -25};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::UTRAN);
@@ -124,6 +128,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 2;
     signalThresholdInfo.thresholds = {-128, -108, -88, -68};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::EUTRAN);
@@ -148,6 +153,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 2;
     signalThresholdInfo.thresholds = {-27, -20, -13, -6};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::EUTRAN);
@@ -172,6 +178,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 2;
     signalThresholdInfo.thresholds = {-10, 0, 10, 20};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::EUTRAN);
@@ -192,6 +199,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 2;
     signalThresholdInfo.thresholds = {-105, -90, -75, -65};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::CDMA2000);
@@ -216,6 +224,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 0;
     signalThresholdInfo.thresholds = {-105, -90, -75, -65};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::NGRAN);
@@ -240,6 +249,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 0;
     signalThresholdInfo.thresholds = {-15, -10, -5, -4};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::NGRAN);
@@ -254,6 +264,27 @@
 }
 
 /*
+ * Test IRadio.setSignalStrengthReportingCriteria_1_5() for EUTRAN
+ */
+TEST_F(RadioHidlTest_v1_5, setSignalStrengthReportingCriteria_1_5_Disable_RSSNR) {
+    serial = GetRandomSerialNumber();
+
+    ::android::hardware::radio::V1_5::SignalThresholdInfo signalThresholdInfo;
+    signalThresholdInfo.signalMeasurement = SignalMeasurementType::RSSNR;
+    signalThresholdInfo.hysteresisMs = 5000;
+    signalThresholdInfo.hysteresisDb = 2;
+    signalThresholdInfo.thresholds = {-10, 0, 10, 20};
+    signalThresholdInfo.isEnabled = false;
+
+    Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
+            serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::EUTRAN);
+    ASSERT_OK(res);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_5->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_5->rspInfo.serial);
+}
+
+/*
  * Test IRadio.setSignalStrengthReportingCriteria_1_5() for NGRAN_SSSINR
  */
 TEST_F(RadioHidlTest_v1_5, setSignalStrengthReportingCriteria_1_5_NGRAN_SSSINR) {
@@ -264,6 +295,7 @@
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 0;
     signalThresholdInfo.thresholds = {-10, 3, 16, 18};
+    signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
             serial, signalThresholdInfo, ::android::hardware::radio::V1_5::AccessNetwork::NGRAN);