diff --git a/renderscript/1.0/vts/functional/Android.bp b/renderscript/1.0/vts/functional/Android.bp
index 87e62f1..e3716e0 100644
--- a/renderscript/1.0/vts/functional/Android.bp
+++ b/renderscript/1.0/vts/functional/Android.bp
@@ -28,5 +28,5 @@
         "android.hardware.renderscript@1.0",
         "libnativewindow",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/renderscript/1.0/vts/functional/VtsCopyTests.cpp b/renderscript/1.0/vts/functional/VtsCopyTests.cpp
index f47253f..3040cbf 100644
--- a/renderscript/1.0/vts/functional/VtsCopyTests.cpp
+++ b/renderscript/1.0/vts/functional/VtsCopyTests.cpp
@@ -27,7 +27,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, Simple1DCopyTest) {
+TEST_P(RenderscriptHidlTest, Simple1DCopyTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -63,7 +63,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, Simple2DCopyTest) {
+TEST_P(RenderscriptHidlTest, Simple2DCopyTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -100,7 +100,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, Simple3DCopyTest) {
+TEST_P(RenderscriptHidlTest, Simple3DCopyTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -137,7 +137,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, SimpleBitmapTest) {
+TEST_P(RenderscriptHidlTest, SimpleBitmapTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -177,7 +177,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, AllocationCopy2DRangeTest) {
+TEST_P(RenderscriptHidlTest, AllocationCopy2DRangeTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -229,7 +229,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, AllocationCopy3DRangeTest) {
+TEST_P(RenderscriptHidlTest, AllocationCopy3DRangeTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -282,7 +282,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, SimpleAdapterTest) {
+TEST_P(RenderscriptHidlTest, SimpleAdapterTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -339,7 +339,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, SimpleMipmapTest) {
+TEST_P(RenderscriptHidlTest, SimpleMipmapTest) {
     // uint8_t
     Element element = context->elementCreate(DataType::UNSIGNED_8, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -386,7 +386,7 @@
  *
  * Expect: dataIn & dataOut are the same.
  */
-TEST_F(RenderscriptHidlTest, SimpleCubemapTest) {
+TEST_P(RenderscriptHidlTest, SimpleCubemapTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -425,7 +425,7 @@
  * typeCreate, allocationCreateTyped, allocationElementWrite,
  * allocationElementRead
  */
-TEST_F(RenderscriptHidlTest, ComplexElementTest) {
+TEST_P(RenderscriptHidlTest, ComplexElementTest) {
     Element element1 = context->elementCreate(DataType::UNSIGNED_8, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element1);
 
diff --git a/renderscript/1.0/vts/functional/VtsHalRenderscriptV1_0TargetTest.cpp b/renderscript/1.0/vts/functional/VtsHalRenderscriptV1_0TargetTest.cpp
index 0636cf9..5e5776c 100644
--- a/renderscript/1.0/vts/functional/VtsHalRenderscriptV1_0TargetTest.cpp
+++ b/renderscript/1.0/vts/functional/VtsHalRenderscriptV1_0TargetTest.cpp
@@ -18,8 +18,7 @@
 
 // The main test class for RENDERSCRIPT HIDL HAL.
 void RenderscriptHidlTest::SetUp() {
-    device = ::testing::VtsHalHidlTargetTestBase::getService<IDevice>(
-        RenderscriptHidlEnvironment::Instance()->getServiceName<IDevice>());
+    device = IDevice::getService(GetParam());
     ASSERT_NE(nullptr, device.get());
 
     uint32_t version = 0;
@@ -35,11 +34,7 @@
     }
 }
 
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(RenderscriptHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    RenderscriptHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, RenderscriptHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IDevice::descriptor)),
+        android::hardware::PrintInstanceNameToString);
diff --git a/renderscript/1.0/vts/functional/VtsHalRenderscriptV1_0TargetTest.h b/renderscript/1.0/vts/functional/VtsHalRenderscriptV1_0TargetTest.h
index e11ab92..b7dbed4 100644
--- a/renderscript/1.0/vts/functional/VtsHalRenderscriptV1_0TargetTest.h
+++ b/renderscript/1.0/vts/functional/VtsHalRenderscriptV1_0TargetTest.h
@@ -14,8 +14,7 @@
  * limitations under the License.
  */
 
-#ifndef VTS_HAL_RENDERSCRIPT_V1_0_TARGET_TESTS_H
-#define VTS_HAL_RENDERSCRIPT_V1_0_TARGET_TESTS_H
+#pragma once
 
 #define LOG_TAG "renderscript_hidl_hal_test"
 #include <android-base/logging.h>
@@ -24,9 +23,9 @@
 #include <android/hardware/renderscript/1.0/IDevice.h>
 #include <android/hardware/renderscript/1.0/types.h>
 
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
 #include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 using ::android::hardware::renderscript::V1_0::Allocation;
 using ::android::hardware::renderscript::V1_0::AllocationAdapter;
@@ -89,8 +88,8 @@
 extern const int bitCodeLength;
 
 // The main test class for RENDERSCRIPT HIDL HAL.
-class RenderscriptHidlTest : public ::testing::VtsHalHidlTargetTestBase {
-public:
+class RenderscriptHidlTest : public ::testing::TestWithParam<std::string> {
+  public:
     virtual void SetUp() override;
     virtual void TearDown() override;
 
@@ -99,17 +98,3 @@
 private:
     sp<IDevice>    device;
 };
-
-// Test environment for RENDERSCRIPT HIDL HAL.
-class RenderscriptHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static RenderscriptHidlEnvironment* Instance() {
-        static RenderscriptHidlEnvironment* instance = new RenderscriptHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IDevice>(); }
-};
-
-#endif // VTS_HAL_RENDERSCRIPT_V1_0_TARGET_TESTS_H
diff --git a/renderscript/1.0/vts/functional/VtsMiscellaneousTests.cpp b/renderscript/1.0/vts/functional/VtsMiscellaneousTests.cpp
index 278dbf3..c66ddea 100644
--- a/renderscript/1.0/vts/functional/VtsMiscellaneousTests.cpp
+++ b/renderscript/1.0/vts/functional/VtsMiscellaneousTests.cpp
@@ -25,14 +25,14 @@
  *
  * Calls: getService<IDevice>, contextCreate, contextDestroy
  */
-TEST_F(RenderscriptHidlTest, ContextCreateAndDestroy) {}
+TEST_P(RenderscriptHidlTest, ContextCreateAndDestroy) {}
 
 /*
  * Create an Element and verify the return value is valid.
  *
  * Calls: elementCreate
  */
-TEST_F(RenderscriptHidlTest, ElementCreate) {
+TEST_P(RenderscriptHidlTest, ElementCreate) {
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     EXPECT_NE(Element(0), element);
 }
@@ -43,7 +43,7 @@
  *
  * Calls: elementCreate, typeCreate, allocationCreateTyped, allocationGetType
  */
-TEST_F(RenderscriptHidlTest, ElementTypeAllocationCreate) {
+TEST_P(RenderscriptHidlTest, ElementTypeAllocationCreate) {
     // Element create test
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -71,7 +71,7 @@
  * Calls: elementCreate, typeCreate, elementGetNativeMetadata,
  * typeGetNativeMetadata
  */
-TEST_F(RenderscriptHidlTest, MetadataTest) {
+TEST_P(RenderscriptHidlTest, MetadataTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -107,7 +107,7 @@
  * Calls: elementCreate, typeCreate, allocationCreateTyped,
  * allocationGetPointer, allocationResize1D
  */
-TEST_F(RenderscriptHidlTest, ResizeTest) {
+TEST_P(RenderscriptHidlTest, ResizeTest) {
     // float1
     Element element = context->elementCreate(DataType::FLOAT_32, DataKind::USER, false, 1);
     ASSERT_NE(Element(0), element);
@@ -145,7 +145,7 @@
  * allocationGetNativeWindow, allocationSetNativeWindow, allocationIoSend,
  * allocationIoReceive, allocation2DRead
  */
-TEST_F(RenderscriptHidlTest, NativeWindowIoTest) {
+TEST_P(RenderscriptHidlTest, NativeWindowIoTest) {
     // uint8x4
     Element element = context->elementCreate(DataType::UNSIGNED_8, DataKind::USER, false, 4);
     ASSERT_NE(Element(0), element);
@@ -198,7 +198,7 @@
  * allocation2DWrite, allocation2DRead, allocationIoSend,
  * allocationIoReceive
  */
-TEST_F(RenderscriptHidlTest, BufferQueueTest) {
+TEST_P(RenderscriptHidlTest, BufferQueueTest) {
     // uint8x4
     Element element = context->elementCreate(DataType::UNSIGNED_8, DataKind::USER, false, 4);
     ASSERT_NE(Element(0), element);
@@ -269,7 +269,7 @@
  * Calls: contextInitToClient, contextSendMessage, contextPeekMessage,
  * contextGetMessage, contextDeinitToClient, contextLog
  */
-TEST_F(RenderscriptHidlTest, ContextMessageTest) {
+TEST_P(RenderscriptHidlTest, ContextMessageTest) {
     context->contextInitToClient();
 
     const char * message = "correct";
@@ -299,7 +299,7 @@
  * Calls: contextSetPriority, contextSetCacheDir, elementCreate, assignName,
  * contextFinish, getName, objDestroy, samplerCreate
  */
-TEST_F(RenderscriptHidlTest, MiscellaneousTests) {
+TEST_P(RenderscriptHidlTest, MiscellaneousTests) {
     context->contextSetPriority(ThreadPriorities::NORMAL);
     context->contextSetCacheDir("/data/local/tmp/temp/");
 
diff --git a/renderscript/1.0/vts/functional/VtsScriptTests.cpp b/renderscript/1.0/vts/functional/VtsScriptTests.cpp
index 8d24cfa..9607267 100644
--- a/renderscript/1.0/vts/functional/VtsScriptTests.cpp
+++ b/renderscript/1.0/vts/functional/VtsScriptTests.cpp
@@ -22,7 +22,7 @@
  *
  * Calls: elementCreate, scriptIntrinsicCreate, scriptSetTimeZone
  */
-TEST_F(RenderscriptHidlTest, IntrinsicTest) {
+TEST_P(RenderscriptHidlTest, IntrinsicTest) {
     // uint8
     Element element = context->elementCreate(DataType::UNSIGNED_8, DataKind::USER, false, 1);
     EXPECT_NE(Element(0), element);
@@ -41,7 +41,7 @@
  * scriptSetVarF, scriptSetVarD, elementCreate, typeCreate,
  * allocationCreateTyped, scriptSetVarObj, scriptSetVarV, scriptSetVarVE
  */
-TEST_F(RenderscriptHidlTest, ScriptVarTest) {
+TEST_P(RenderscriptHidlTest, ScriptVarTest) {
     hidl_vec<uint8_t> bitcode;
     bitcode.setToExternal((uint8_t*)bitCode, bitCodeLength);
     Script script = context->scriptCCreate("struct_test", "/data/local/tmp/", bitcode);
@@ -132,7 +132,7 @@
  *
  * Calls: scriptCCreate, scriptInvoke, scriptGetVarV, scriptInvokeV
  */
-TEST_F(RenderscriptHidlTest, ScriptInvokeTest) {
+TEST_P(RenderscriptHidlTest, ScriptInvokeTest) {
     hidl_vec<uint8_t> bitcode;
     bitcode.setToExternal((uint8_t*)bitCode, bitCodeLength);
     Script script = context->scriptCCreate("struct_test", "/data/local/tmp/", bitcode);
@@ -191,7 +191,7 @@
  * Calls: scriptCCreate, elementCreate, typeCreate, allocationCreateTyped,
  * allocation1DWrite, scriptForEach, allocationRead
  */
-TEST_F(RenderscriptHidlTest, ScriptForEachTest) {
+TEST_P(RenderscriptHidlTest, ScriptForEachTest) {
     hidl_vec<uint8_t> bitcode;
     bitcode.setToExternal((uint8_t*)bitCode, bitCodeLength);
     Script script = context->scriptCCreate("struct_test", "/data/local/tmp/", bitcode);
@@ -237,7 +237,7 @@
  * Calls: scriptCCreate, elementCreate, typeCreate, allocationCreateTyped,
  * allocation1DWrite, scriptReduce, contextFinish, allocationRead
  */
-TEST_F(RenderscriptHidlTest, ScriptReduceTest) {
+TEST_P(RenderscriptHidlTest, ScriptReduceTest) {
     hidl_vec<uint8_t> bitcode;
     bitcode.setToExternal((uint8_t*)bitCode, bitCodeLength);
     Script script = context->scriptCCreate("struct_test", "/data/local/tmp/", bitcode);
@@ -288,7 +288,7 @@
  * allocation1DWrite, scriptBindAllocation, scriptSetVarV, scriptBindAllocation,
  * allocationRead, scriptInvokeV, allocationRead
  */
-TEST_F(RenderscriptHidlTest, ScriptBindTest) {
+TEST_P(RenderscriptHidlTest, ScriptBindTest) {
     hidl_vec<uint8_t> bitcode;
     bitcode.setToExternal((uint8_t*)bitCode, bitCodeLength);
     Script script = context->scriptCCreate("struct_test", "/data/local/tmp/", bitcode);
@@ -333,7 +333,7 @@
  * scriptGroupCreate, scriptGroupSetInput, scriptGroupSetOutput,
  * scriptGroupExecute, contextFinish, allocation2DRead
  */
-TEST_F(RenderscriptHidlTest, ScriptGroupTest) {
+TEST_P(RenderscriptHidlTest, ScriptGroupTest) {
     std::vector<uint8_t> dataIn(256 * 256 * 4, 128), dataOut(256 * 256 * 4, 0),
         zeros(256 * 256 * 4, 0);
     hidl_vec<uint8_t> _dataIn, _dataOut;
@@ -418,7 +418,7 @@
  * invokeClosureCreate, closureCreate, closureSetGlobal, scriptGroup2Create,
  * scriptGroupExecute, allocationRead
  */
-TEST_F(RenderscriptHidlTest, ScriptGroup2Test) {
+TEST_P(RenderscriptHidlTest, ScriptGroup2Test) {
     hidl_vec<uint8_t> bitcode;
     bitcode.setToExternal((uint8_t*)bitCode, bitCodeLength);
     Script script = context->scriptCCreate("struct_test", "/data/local/tmp/", bitcode);
@@ -495,7 +495,7 @@
  * allocation1DWrite, scriptKernelIDCreate, closureCreate, closureSetArg,
  * scriptGroup2Create, scriptGroupExecute, allocationRead
  */
-TEST_F(RenderscriptHidlTest, ScriptGroup2KernelTest) {
+TEST_P(RenderscriptHidlTest, ScriptGroup2KernelTest) {
     hidl_vec<uint8_t> bitcode;
     bitcode.setToExternal((uint8_t*)bitCode, bitCodeLength);
     Script script = context->scriptCCreate("struct_test", "/data/local/tmp/", bitcode);