diff --git a/biometrics/fingerprint/2.1/vts/functional/Android.bp b/biometrics/fingerprint/2.1/vts/functional/Android.bp
index 60228f2..c418032 100644
--- a/biometrics/fingerprint/2.1/vts/functional/Android.bp
+++ b/biometrics/fingerprint/2.1/vts/functional/Android.bp
@@ -19,6 +19,6 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: ["VtsHalBiometricsFingerprintV2_1TargetTest.cpp"],
     static_libs: ["android.hardware.biometrics.fingerprint@2.1"],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
 
diff --git a/configstore/1.0/vts/functional/Android.bp b/configstore/1.0/vts/functional/Android.bp
index 008b59d..31d4b1c 100644
--- a/configstore/1.0/vts/functional/Android.bp
+++ b/configstore/1.0/vts/functional/Android.bp
@@ -19,6 +19,6 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: ["VtsHalConfigstoreV1_0TargetTest.cpp"],
     static_libs: ["android.hardware.configstore@1.0"],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
 
diff --git a/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp b/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
index 70b5830..8a1a313 100644
--- a/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
+++ b/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
@@ -16,11 +16,12 @@
 
 #define LOG_TAG "ConfigstoreHidlHalTest"
 
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
 #include <android-base/logging.h>
 #include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
 #include <android/hardware/configstore/1.0/types.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 #include <unistd.h>
 
 using ::android::hardware::configstore::V1_0::ISurfaceFlingerConfigs;
@@ -35,25 +36,12 @@
 #define ASSERT_OK(ret) ASSERT_TRUE(ret.isOk())
 #define EXPECT_OK(ret) EXPECT_TRUE(ret.isOk())
 
-// Test environment for Configstore HIDL HAL.
-class ConfigstoreHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static ConfigstoreHidlEnvironment* Instance() {
-        static ConfigstoreHidlEnvironment* instance = new ConfigstoreHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<ISurfaceFlingerConfigs>(); }
-};
-
-class ConfigstoreHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class ConfigstoreHidlTest : public ::testing::TestWithParam<std::string> {
    public:
     sp<ISurfaceFlingerConfigs> sfConfigs;
 
     virtual void SetUp() override {
-        sfConfigs = ::testing::VtsHalHidlTargetTestBase::getService<ISurfaceFlingerConfigs>(
-            ConfigstoreHidlEnvironment::Instance()->getServiceName<ISurfaceFlingerConfigs>());
+        sfConfigs = ISurfaceFlingerConfigs::getService(GetParam());
         ASSERT_NE(sfConfigs, nullptr);
     }
 
@@ -63,7 +51,7 @@
 /**
  * Ensure all ISurfaceFlingerConfigs.hal function calls are successful.
  */
-TEST_F(ConfigstoreHidlTest, TestFunctionCalls) {
+TEST_P(ConfigstoreHidlTest, TestFunctionCalls) {
     bool tmp;
 
     Return<void> status = sfConfigs->vsyncEventPhaseOffsetNs(
@@ -118,7 +106,7 @@
 /**
  * Ensure repeated call to the same function returns the same result.
  */
-TEST_F(ConfigstoreHidlTest, TestSameReturnValue) {
+TEST_P(ConfigstoreHidlTest, TestSameReturnValue) {
     int64_t original_ret;
     Return<void> status = sfConfigs->vsyncEventPhaseOffsetNs(
         [&original_ret](OptionalInt64 arg) { original_ret = arg.value; });
@@ -135,7 +123,7 @@
  * Make sure the constrains of hasWideColorDisplay, hasHDRDisplay
  * are enforced.
  */
-TEST_F(ConfigstoreHidlTest, TestColorConstrainsBasic) {
+TEST_P(ConfigstoreHidlTest, TestColorConstrainsBasic) {
     bool hasWideColorDisplay;
     bool hasHDRDisplay;
 
@@ -152,11 +140,7 @@
     }
 }
 
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(ConfigstoreHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    ConfigstoreHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, ConfigstoreHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(ISurfaceFlingerConfigs::descriptor)),
+        android::hardware::PrintInstanceNameToString);
diff --git a/memtrack/1.0/vts/functional/Android.bp b/memtrack/1.0/vts/functional/Android.bp
index d682e0b..9e5cf6d 100644
--- a/memtrack/1.0/vts/functional/Android.bp
+++ b/memtrack/1.0/vts/functional/Android.bp
@@ -19,5 +19,5 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: ["VtsHalMemtrackV1_0TargetTest.cpp"],
     static_libs: ["android.hardware.memtrack@1.0"],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/memtrack/1.0/vts/functional/VtsHalMemtrackV1_0TargetTest.cpp b/memtrack/1.0/vts/functional/VtsHalMemtrackV1_0TargetTest.cpp
index 691ecca..cccedca 100644
--- a/memtrack/1.0/vts/functional/VtsHalMemtrackV1_0TargetTest.cpp
+++ b/memtrack/1.0/vts/functional/VtsHalMemtrackV1_0TargetTest.cpp
@@ -20,8 +20,9 @@
 
 #include <android/hardware/memtrack/1.0/IMemtrack.h>
 
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 #include <fcntl.h>
 #include <algorithm>
@@ -39,23 +40,10 @@
 using std::vector;
 using std::count_if;
 
-// Test environment for Memtrack HIDL HAL.
-class MemtrackHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static MemtrackHidlEnvironment* Instance() {
-        static MemtrackHidlEnvironment* instance = new MemtrackHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IMemtrack>(); }
-};
-
-class MemtrackHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class MemtrackHidlTest : public ::testing::TestWithParam<std::string> {
  public:
   virtual void SetUp() override {
-      memtrack = ::testing::VtsHalHidlTargetTestBase::getService<IMemtrack>(
-          MemtrackHidlEnvironment::Instance()->getServiceName<IMemtrack>());
+      memtrack = IMemtrack::getService(GetParam());
       ASSERT_NE(memtrack, nullptr);
   }
 
@@ -93,7 +81,7 @@
 
 /* Sanity check results when getMemory() is passed a negative PID
  */
-TEST_F(MemtrackHidlTest, BadPidTest) {
+TEST_P(MemtrackHidlTest, BadPidTest) {
   MemtrackStatus s;
   hidl_vec<MemtrackRecord> v;
   auto cb = generate_cb(&s, &v);
@@ -108,7 +96,7 @@
 
 /* Sanity check results when getMemory() is passed a bad memory usage type
  */
-TEST_F(MemtrackHidlTest, BadTypeTest) {
+TEST_P(MemtrackHidlTest, BadTypeTest) {
   MemtrackStatus s;
   hidl_vec<MemtrackRecord> v;
   auto cb = generate_cb(&s, &v);
@@ -121,7 +109,7 @@
  * for all memory types, including valid flag combinations for every
  * MemtrackRecord returned.
  */
-TEST_F(MemtrackHidlTest, GetMemoryTest) {
+TEST_P(MemtrackHidlTest, GetMemoryTest) {
   /* Opening this device causes the kernel to provide memtrack with memory
    * info for this process.
    */
@@ -172,11 +160,7 @@
                   static_cast<uint32_t>(MemtrackType::NUM_TYPES));
 }
 
-int main(int argc, char **argv) {
-    ::testing::AddGlobalTestEnvironment(MemtrackHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    MemtrackHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, MemtrackHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IMemtrack::descriptor)),
+        android::hardware::PrintInstanceNameToString);
diff --git a/weaver/1.0/vts/functional/Android.bp b/weaver/1.0/vts/functional/Android.bp
index 9fdbb18..3942deb 100644
--- a/weaver/1.0/vts/functional/Android.bp
+++ b/weaver/1.0/vts/functional/Android.bp
@@ -19,5 +19,5 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: ["VtsHalWeaverV1_0TargetTest.cpp"],
     static_libs: ["android.hardware.weaver@1.0"],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp b/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp
index de2a1de..ae92c36 100644
--- a/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp
+++ b/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp
@@ -15,12 +15,12 @@
  */
 
 #include <android/hardware/weaver/1.0/IWeaver.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 #include <limits>
 
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
-
 using ::android::hardware::weaver::V1_0::IWeaver;
 using ::android::hardware::weaver::V1_0::WeaverConfig;
 using ::android::hardware::weaver::V1_0::WeaverReadStatus;
@@ -34,22 +34,9 @@
 const std::vector<uint8_t> VALUE{16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
 const std::vector<uint8_t> OTHER_VALUE{0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 255, 255};
 
-// Test environment for Weaver HIDL HAL.
-class WeaverHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static WeaverHidlEnvironment* Instance() {
-        static WeaverHidlEnvironment* instance = new WeaverHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IWeaver>(); }
-};
-
-struct WeaverHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+struct WeaverHidlTest : public ::testing::TestWithParam<std::string> {
     virtual void SetUp() override {
-        weaver = ::testing::VtsHalHidlTargetTestBase::getService<IWeaver>(
-            WeaverHidlEnvironment::Instance()->getServiceName<IWeaver>());
+        weaver = IWeaver::getService(GetParam());
         ASSERT_NE(weaver, nullptr);
     }
 
@@ -61,7 +48,7 @@
 /*
  * Checks config values are suitably large
  */
-TEST_F(WeaverHidlTest, GetConfig) {
+TEST_P(WeaverHidlTest, GetConfig) {
     WeaverStatus status;
     WeaverConfig config;
 
@@ -83,7 +70,7 @@
 /*
  * Gets the config twice and checks they are the same
  */
-TEST_F(WeaverHidlTest, GettingConfigMultipleTimesGivesSameResult) {
+TEST_P(WeaverHidlTest, GettingConfigMultipleTimesGivesSameResult) {
     WeaverConfig config1;
     WeaverConfig config2;
 
@@ -114,7 +101,7 @@
 /*
  * Gets the number of slots from the config and writes a key and value to the last one
  */
-TEST_F(WeaverHidlTest, WriteToLastSlot) {
+TEST_P(WeaverHidlTest, WriteToLastSlot) {
     WeaverStatus status;
     WeaverConfig config;
     const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
@@ -134,7 +121,7 @@
  * Writes a key and value to a slot
  * Reads the slot with the same key and receives the value that was previously written
  */
-TEST_F(WeaverHidlTest, WriteFollowedByReadGivesTheSameValue) {
+TEST_P(WeaverHidlTest, WriteFollowedByReadGivesTheSameValue) {
     constexpr uint32_t slotId = 0;
     const auto ret = weaver->write(slotId, KEY, VALUE);
     ASSERT_TRUE(ret.isOk());
@@ -162,7 +149,7 @@
  * Overwrites the slot with a new key and value
  * Reads the slot with the new key and receives the new value
  */
-TEST_F(WeaverHidlTest, OverwritingSlotUpdatesTheValue) {
+TEST_P(WeaverHidlTest, OverwritingSlotUpdatesTheValue) {
     constexpr uint32_t slotId = 0;
     const auto initialWriteRet = weaver->write(slotId, WRONG_KEY, VALUE);
     ASSERT_TRUE(initialWriteRet.isOk());
@@ -193,7 +180,7 @@
  * Writes a key and value to a slot
  * Reads the slot with a different key so does not receive the value
  */
-TEST_F(WeaverHidlTest, WriteFollowedByReadWithWrongKeyDoesNotGiveTheValue) {
+TEST_P(WeaverHidlTest, WriteFollowedByReadWithWrongKeyDoesNotGiveTheValue) {
     constexpr uint32_t slotId = 0;
     const auto ret = weaver->write(slotId, KEY, VALUE);
     ASSERT_TRUE(ret.isOk());
@@ -217,7 +204,7 @@
 /*
  * Writing to an invalid slot fails
  */
-TEST_F(WeaverHidlTest, WritingToInvalidSlotFails) {
+TEST_P(WeaverHidlTest, WritingToInvalidSlotFails) {
     WeaverStatus status;
     WeaverConfig config;
     const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
@@ -240,7 +227,7 @@
 /*
  * Reading from an invalid slot fails rather than incorrect key
  */
-TEST_F(WeaverHidlTest, ReadingFromInvalidSlotFails) {
+TEST_P(WeaverHidlTest, ReadingFromInvalidSlotFails) {
     WeaverStatus status;
     WeaverConfig config;
     const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
@@ -276,7 +263,7 @@
 /*
  * Writing a key that is too large fails
  */
-TEST_F(WeaverHidlTest, WriteWithTooLargeKeyFails) {
+TEST_P(WeaverHidlTest, WriteWithTooLargeKeyFails) {
     WeaverStatus status;
     WeaverConfig config;
     const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
@@ -297,7 +284,7 @@
 /*
  * Writing a value that is too large fails
  */
-TEST_F(WeaverHidlTest, WriteWithTooLargeValueFails) {
+TEST_P(WeaverHidlTest, WriteWithTooLargeValueFails) {
     WeaverStatus status;
     WeaverConfig config;
     const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
@@ -318,7 +305,7 @@
 /*
  * Reading with a key that is loo large fails
  */
-TEST_F(WeaverHidlTest, ReadWithTooLargeKeyFails) {
+TEST_P(WeaverHidlTest, ReadWithTooLargeKeyFails) {
     WeaverStatus status;
     WeaverConfig config;
     const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
@@ -349,11 +336,7 @@
     EXPECT_EQ(timeout, 0u);
 }
 
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(WeaverHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    WeaverHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    ALOGI("Test result = %d", status);
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, WeaverHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IWeaver::descriptor)),
+        android::hardware::PrintInstanceNameToString);