diff --git a/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h b/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
index 4294657..63aa713 100644
--- a/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
+++ b/graphics/composer/2.1/utils/vts/include/composer-vts/2.1/ComposerVts.h
@@ -57,6 +57,7 @@
    public:
     Composer();
     explicit Composer(const std::string& name);
+    explicit Composer(const sp<IComposer>& composer);
 
     sp<IComposer> getRaw() const;
 
@@ -67,9 +68,6 @@
     std::string dumpDebugInfo();
     std::unique_ptr<ComposerClient> createClient();
 
-   protected:
-    explicit Composer(const sp<IComposer>& composer);
-
    private:
     const sp<IComposer> mComposer;
 
diff --git a/graphics/composer/2.1/vts/functional/Android.bp b/graphics/composer/2.1/vts/functional/Android.bp
index 799ca91..5f1ed63 100644
--- a/graphics/composer/2.1/vts/functional/Android.bp
+++ b/graphics/composer/2.1/vts/functional/Android.bp
@@ -42,5 +42,6 @@
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",
     ],
-    test_suites: ["general-tests"],
+    disable_framework: true,
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
index 9477ee6..b92279d 100644
--- a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
+++ b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
@@ -20,13 +20,14 @@
 #include <composer-vts/2.1/ComposerVts.h>
 #include <composer-vts/2.1/GraphicsComposerCallback.h>
 #include <composer-vts/2.1/TestCommandReader.h>
+#include <gtest/gtest.h>
 #include <hardware/hwcomposer2.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 #include <mapper-vts/2.0/MapperVts.h>
 #include <mapper-vts/3.0/MapperVts.h>
 #include <mapper-vts/4.0/MapperVts.h>
 
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
 #include <unistd.h>
 
 #include <algorithm>
@@ -52,30 +53,11 @@
 using android::hardware::graphics::common::V1_0::Transform;
 using GrallocError = android::hardware::graphics::mapper::V2_0::Error;
 
-// Test environment for graphics.composer
-class GraphicsComposerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static GraphicsComposerHidlEnvironment* Instance() {
-        static GraphicsComposerHidlEnvironment* instance = new GraphicsComposerHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IComposer>(); }
-
-   private:
-    GraphicsComposerHidlEnvironment() {}
-
-    GTEST_DISALLOW_COPY_AND_ASSIGN_(GraphicsComposerHidlEnvironment);
-};
-
-class GraphicsComposerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
-   protected:
+class GraphicsComposerHidlTest : public ::testing::TestWithParam<std::string> {
+  protected:
     void SetUp() override {
-        VtsHalHidlTargetTestBase::SetUp();
         ASSERT_NO_FATAL_FAILURE(
-            mComposer = std::make_unique<Composer>(
-                GraphicsComposerHidlEnvironment::Instance()->getServiceName<IComposer>()));
+                mComposer = std::make_unique<Composer>(IComposer::getService(GetParam())));
         ASSERT_NO_FATAL_FAILURE(mComposerClient = mComposer->createClient());
 
         mComposerCallback = new GraphicsComposerCallback;
@@ -102,7 +84,6 @@
             EXPECT_EQ(0, mComposerCallback->getInvalidRefreshCount());
             EXPECT_EQ(0, mComposerCallback->getInvalidVsyncCount());
         }
-        VtsHalHidlTargetTestBase::TearDown();
     }
 
     // returns an invalid display id (one that has not been registered to a
@@ -151,7 +132,7 @@
  *
  * Test that IComposer::getCapabilities returns no invalid capabilities.
  */
-TEST_F(GraphicsComposerHidlTest, GetCapabilities) {
+TEST_P(GraphicsComposerHidlTest, GetCapabilities) {
     auto capabilities = mComposer->getCapabilities();
     ASSERT_EQ(capabilities.end(),
               std::find(capabilities.begin(), capabilities.end(), IComposer::Capability::INVALID));
@@ -160,7 +141,7 @@
 /**
  * Test IComposer::dumpDebugInfo.
  */
-TEST_F(GraphicsComposerHidlTest, DumpDebugInfo) {
+TEST_P(GraphicsComposerHidlTest, DumpDebugInfo) {
     mComposer->dumpDebugInfo();
 }
 
@@ -169,7 +150,7 @@
  *
  * Test that IComposerClient is a singleton.
  */
-TEST_F(GraphicsComposerHidlTest, CreateClientSingleton) {
+TEST_P(GraphicsComposerHidlTest, CreateClientSingleton) {
     mComposer->getRaw()->createClient(
         [&](const auto& tmpError, const auto&) { EXPECT_EQ(Error::NO_RESOURCES, tmpError); });
 }
@@ -180,7 +161,7 @@
  *
  * Test that virtual displays can be created and has the correct display type.
  */
-TEST_F(GraphicsComposerHidlTest, CreateVirtualDisplay) {
+TEST_P(GraphicsComposerHidlTest, CreateVirtualDisplay) {
     if (mComposerClient->getMaxVirtualDisplayCount() == 0) {
         GTEST_SUCCEED() << "no virtual display support";
         return;
@@ -205,7 +186,7 @@
  * Test that passing a bad display handle to destroyVirtualDisplay
  * returns a BAD_DISPLAY error
  */
-TEST_F(GraphicsComposerHidlTest, DestroyVirtualDisplayBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, DestroyVirtualDisplayBadDisplay) {
     if (mComposerClient->getMaxVirtualDisplayCount() == 0) {
         GTEST_SUCCEED() << "no virtual display support";
         return;
@@ -220,7 +201,7 @@
  *
  * Test that layers can be created and destroyed.
  */
-TEST_F(GraphicsComposerHidlTest, CreateLayer) {
+TEST_P(GraphicsComposerHidlTest, CreateLayer) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -234,7 +215,7 @@
  * Test that passing in an invalid display handle to createLayer returns
  * BAD_DISPLAY.
  */
-TEST_F(GraphicsComposerHidlTest, CreateLayerBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, CreateLayerBadDisplay) {
     Error error;
     mComposerClient->getRaw()->createLayer(
         mInvalidDisplayId, kBufferSlotCount,
@@ -248,7 +229,7 @@
  * Test that passing in an invalid display handle to destroyLayer returns
  * BAD_DISPLAY
  */
-TEST_F(GraphicsComposerHidlTest, DestroyLayerBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, DestroyLayerBadDisplay) {
     Error error;
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
@@ -267,7 +248,7 @@
  * Test that passing in an invalid layer handle to destroyLayer returns
  * BAD_LAYER
  */
-TEST_F(GraphicsComposerHidlTest, DestroyLayerBadLayerError) {
+TEST_P(GraphicsComposerHidlTest, DestroyLayerBadLayerError) {
     // We haven't created any layers yet, so any id should be invalid
     Error error = mComposerClient->getRaw()->destroyLayer(mPrimaryDisplay, 1);
 
@@ -280,7 +261,7 @@
  * Test that passing in a bad display handle to getActiveConfig generates a
  * BAD_DISPLAY error
  */
-TEST_F(GraphicsComposerHidlTest, GetActiveConfigBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, GetActiveConfigBadDisplay) {
     Error error;
     mComposerClient->getRaw()->getActiveConfig(
         mInvalidDisplayId, [&](const auto& tmpOutError, const auto&) { error = tmpOutError; });
@@ -293,7 +274,7 @@
  * Test IComposerClient::getDisplayConfigs returns no error
  * when passed in a valid display
  */
-TEST_F(GraphicsComposerHidlTest, GetDisplayConfig) {
+TEST_P(GraphicsComposerHidlTest, GetDisplayConfig) {
     std::vector<Config> configs;
     ASSERT_NO_FATAL_FAILURE(configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay));
 }
@@ -304,7 +285,7 @@
  * Test IComposerClient::getDisplayConfigs returns BAD_DISPLAY
  * when passed in an invalid display handle
  */
-TEST_F(GraphicsComposerHidlTest, GetDisplayConfigBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, GetDisplayConfigBadDisplay) {
     Error error;
     mComposerClient->getRaw()->getDisplayConfigs(
         mInvalidDisplayId, [&](const auto& tmpOutError, const auto&) { error = tmpOutError; });
@@ -314,7 +295,7 @@
 /**
  * Test IComposerClient::getDisplayName.
  */
-TEST_F(GraphicsComposerHidlTest, GetDisplayName) {
+TEST_P(GraphicsComposerHidlTest, GetDisplayName) {
     mComposerClient->getDisplayName(mPrimaryDisplay);
 }
 
@@ -324,7 +305,7 @@
  * Test that IComposerClient::getDisplayType returns the correct display type
  * for the primary display.
  */
-TEST_F(GraphicsComposerHidlTest, GetDisplayType) {
+TEST_P(GraphicsComposerHidlTest, GetDisplayType) {
     ASSERT_EQ(IComposerClient::DisplayType::PHYSICAL,
               mComposerClient->getDisplayType(mPrimaryDisplay));
 }
@@ -335,7 +316,7 @@
  * Test that IComposerClient::getClientTargetSupport returns true for the
  * required client targets.
  */
-TEST_F(GraphicsComposerHidlTest, GetClientTargetSupport) {
+TEST_P(GraphicsComposerHidlTest, GetClientTargetSupport) {
     std::vector<Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
     for (auto config : configs) {
         int32_t width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
@@ -358,7 +339,7 @@
  * Test that IComposerClient::getClientTargetSupport returns BAD_DISPLAY when
  * passed an invalid display handle
  */
-TEST_F(GraphicsComposerHidlTest, GetClientTargetSupportBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, GetClientTargetSupportBadDisplay) {
     std::vector<Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
     for (auto config : configs) {
         int32_t width = mComposerClient->getDisplayAttribute(mPrimaryDisplay, config,
@@ -382,7 +363,7 @@
  * Test that IComposerClient::getDisplayAttribute succeeds for the required
  * formats, and succeeds or fails correctly for optional attributes.
  */
-TEST_F(GraphicsComposerHidlTest, GetDisplayAttribute) {
+TEST_P(GraphicsComposerHidlTest, GetDisplayAttribute) {
     std::vector<Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
     for (auto config : configs) {
         const std::array<IComposerClient::Attribute, 3> requiredAttributes = {{
@@ -408,7 +389,7 @@
 /**
  * Test IComposerClient::getHdrCapabilities.
  */
-TEST_F(GraphicsComposerHidlTest, GetHdrCapabilities) {
+TEST_P(GraphicsComposerHidlTest, GetHdrCapabilities) {
     float maxLuminance;
     float maxAverageLuminance;
     float minLuminance;
@@ -419,7 +400,7 @@
 /**
  * Test IComposerClient::setClientTargetSlotCount.
  */
-TEST_F(GraphicsComposerHidlTest, SetClientTargetSlotCount) {
+TEST_P(GraphicsComposerHidlTest, SetClientTargetSlotCount) {
     mComposerClient->setClientTargetSlotCount(mPrimaryDisplay, kBufferSlotCount);
 }
 
@@ -429,7 +410,7 @@
  * Test that IComposerClient::setActiveConfig succeeds for all display
  * configs.
  */
-TEST_F(GraphicsComposerHidlTest, SetActiveConfig) {
+TEST_P(GraphicsComposerHidlTest, SetActiveConfig) {
     std::vector<Config> configs = mComposerClient->getDisplayConfigs(mPrimaryDisplay);
     for (auto config : configs) {
         mComposerClient->setActiveConfig(mPrimaryDisplay, config);
@@ -443,7 +424,7 @@
  * Test that config set during IComposerClient::setActiveConfig is maintained
  * during a display on/off power cycle
  */
-TEST_F(GraphicsComposerHidlTest, SetActiveConfigPowerCycle) {
+TEST_P(GraphicsComposerHidlTest, SetActiveConfigPowerCycle) {
     ASSERT_NO_FATAL_FAILURE(
         mComposerClient->setPowerMode(mPrimaryDisplay, IComposerClient::PowerMode::OFF));
     ASSERT_NO_FATAL_FAILURE(
@@ -467,7 +448,7 @@
  *
  * Test that IComposerClient::getColorMode always returns ColorMode::NATIVE
  */
-TEST_F(GraphicsComposerHidlTest, GetColorModes) {
+TEST_P(GraphicsComposerHidlTest, GetColorModes) {
     std::vector<ColorMode> modes = mComposerClient->getColorModes(mPrimaryDisplay);
     auto nativeModeLocation = std::find(modes.begin(), modes.end(), ColorMode::NATIVE);
 
@@ -479,7 +460,7 @@
  *
  * Test that IComposerClient::setColorMode succeeds for all color modes.
  */
-TEST_F(GraphicsComposerHidlTest, SetColorMode) {
+TEST_P(GraphicsComposerHidlTest, SetColorMode) {
     std::unordered_set<ColorMode> validModes;
     for (auto mode : hidl_enum_range<ColorMode>()) {
         validModes.insert(mode);
@@ -499,7 +480,7 @@
  * Test that IComposerClient::setColorMode returns BAD_DISPLAY for
  * an invalid display handle
  */
-TEST_F(GraphicsComposerHidlTest, SetColorModeBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, SetColorModeBadDisplay) {
     std::vector<ColorMode> modes = mComposerClient->getColorModes(mPrimaryDisplay);
     for (auto mode : modes) {
         Error error = mComposerClient->getRaw()->setColorMode(mInvalidDisplayId, mode);
@@ -513,7 +494,7 @@
  * Test that IComposerClient::setColorMode returns BAD_PARAMETER when passed in
  * an invalid color mode
  */
-TEST_F(GraphicsComposerHidlTest, SetColorModeBadParameter) {
+TEST_P(GraphicsComposerHidlTest, SetColorModeBadParameter) {
     Error error =
         mComposerClient->getRaw()->setColorMode(mPrimaryDisplay, static_cast<ColorMode>(-1));
     ASSERT_EQ(Error::BAD_PARAMETER, error);
@@ -525,7 +506,7 @@
  * Test that IComposerClient::getDozeSupport returns
  * BAD_DISPLAY when passed an invalid display handle
  */
-TEST_F(GraphicsComposerHidlTest, GetDozeSupportBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, GetDozeSupportBadDisplay) {
     Error error;
     mComposerClient->getRaw()->getDozeSupport(
         mInvalidDisplayId, [&](const auto& tmpOutError, const auto&) { error = tmpOutError; });
@@ -537,7 +518,7 @@
  *
  * Test that IComposerClient::setPowerMode succeeds for all power modes.
  */
-TEST_F(GraphicsComposerHidlTest, SetPowerMode) {
+TEST_P(GraphicsComposerHidlTest, SetPowerMode) {
     std::vector<IComposerClient::PowerMode> modes;
     modes.push_back(IComposerClient::PowerMode::OFF);
 
@@ -560,7 +541,7 @@
  * Test IComposerClient::setPowerMode succeeds with different
  * orderings of power modes
  */
-TEST_F(GraphicsComposerHidlTest, SetPowerModeVariations) {
+TEST_P(GraphicsComposerHidlTest, SetPowerModeVariations) {
     std::vector<IComposerClient::PowerMode> modes;
     modes.push_back(IComposerClient::PowerMode::OFF);
     modes.push_back(IComposerClient::PowerMode::ON);
@@ -611,7 +592,7 @@
  * Test IComposerClient::setPowerMode returns BAD_DISPLAY when passed an invalid
  * display handle
  */
-TEST_F(GraphicsComposerHidlTest, SetPowerModeBadDisplay) {
+TEST_P(GraphicsComposerHidlTest, SetPowerModeBadDisplay) {
     Error error =
         mComposerClient->getRaw()->setPowerMode(mInvalidDisplayId, IComposerClient::PowerMode::ON);
     ASSERT_EQ(Error::BAD_DISPLAY, error);
@@ -623,7 +604,7 @@
  * Test that IComposerClient::setPowerMode returns UNSUPPORTED when passed DOZE
  * or DOZE_SUSPEND on devices that do not support DOZE/DOZE_SUSPEND
  */
-TEST_F(GraphicsComposerHidlTest, SetPowerModeUnsupported) {
+TEST_P(GraphicsComposerHidlTest, SetPowerModeUnsupported) {
     if (!mComposerClient->getDozeSupport(mPrimaryDisplay)) {
         Error error = mComposerClient->getRaw()->setPowerMode(mPrimaryDisplay,
                                                               IComposerClient::PowerMode::DOZE);
@@ -641,7 +622,7 @@
  * Tests that IComposerClient::setPowerMode returns BAD_PARAMETER when passed an invalid
  * PowerMode
  */
-TEST_F(GraphicsComposerHidlTest, SetPowerModeBadParameter) {
+TEST_P(GraphicsComposerHidlTest, SetPowerModeBadParameter) {
     Error error = mComposerClient->getRaw()->setPowerMode(
         mPrimaryDisplay, static_cast<IComposerClient::PowerMode>(-1));
     ASSERT_EQ(Error::BAD_PARAMETER, error);
@@ -653,7 +634,7 @@
  * Test that IComposerClient::setVsyncEnabled succeeds and there is no
  * spurious vsync events.
  */
-TEST_F(GraphicsComposerHidlTest, SetVsyncEnabled) {
+TEST_P(GraphicsComposerHidlTest, SetVsyncEnabled) {
     mComposerCallback->setVsyncAllowed(true);
 
     mComposerClient->setVsyncEnabled(mPrimaryDisplay, true);
@@ -705,7 +686,7 @@
 /**
  * Test IComposerClient::Command::SET_COLOR_TRANSFORM.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_COLOR_TRANSFORM) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_COLOR_TRANSFORM) {
     const std::array<float, 16> identity = {{
         1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
         1.0f,
@@ -720,7 +701,7 @@
 /**
  * Test IComposerClient::Command::SET_CLIENT_TARGET.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_CLIENT_TARGET) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_CLIENT_TARGET) {
     mComposerClient->setClientTargetSlotCount(mPrimaryDisplay, kBufferSlotCount);
 
     mWriter->selectDisplay(mPrimaryDisplay);
@@ -733,7 +714,7 @@
 /**
  * Test IComposerClient::Command::SET_OUTPUT_BUFFER.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_OUTPUT_BUFFER) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_OUTPUT_BUFFER) {
     if (mComposerClient->getMaxVirtualDisplayCount() == 0) {
         GTEST_SUCCEED() << "no virtual display support";
         return;
@@ -756,7 +737,7 @@
 /**
  * Test IComposerClient::Command::VALIDATE_DISPLAY.
  */
-TEST_F(GraphicsComposerHidlCommandTest, VALIDATE_DISPLAY) {
+TEST_P(GraphicsComposerHidlCommandTest, VALIDATE_DISPLAY) {
     mWriter->selectDisplay(mPrimaryDisplay);
     mWriter->validateDisplay();
     execute();
@@ -765,7 +746,7 @@
 /**
  * Test IComposerClient::Command::ACCEPT_DISPLAY_CHANGES.
  */
-TEST_F(GraphicsComposerHidlCommandTest, ACCEPT_DISPLAY_CHANGES) {
+TEST_P(GraphicsComposerHidlCommandTest, ACCEPT_DISPLAY_CHANGES) {
     mWriter->selectDisplay(mPrimaryDisplay);
     mWriter->validateDisplay();
     mWriter->acceptDisplayChanges();
@@ -775,7 +756,7 @@
 /**
  * Test IComposerClient::Command::PRESENT_DISPLAY.
  */
-TEST_F(GraphicsComposerHidlCommandTest, PRESENT_DISPLAY) {
+TEST_P(GraphicsComposerHidlCommandTest, PRESENT_DISPLAY) {
     mWriter->selectDisplay(mPrimaryDisplay);
     mWriter->validateDisplay();
     mWriter->presentDisplay();
@@ -789,7 +770,7 @@
  * additional call to validateDisplay when only the layer buffer handle and
  * surface damage have been set
  */
-TEST_F(GraphicsComposerHidlCommandTest, PRESENT_DISPLAY_NO_LAYER_STATE_CHANGES) {
+TEST_P(GraphicsComposerHidlCommandTest, PRESENT_DISPLAY_NO_LAYER_STATE_CHANGES) {
     if (!mComposer->hasCapability(
                 static_cast<IComposer::Capability>(HWC2_CAPABILITY_SKIP_VALIDATE))) {
         std::cout << "Device does not have skip validate capability, skipping" << std::endl;
@@ -845,7 +826,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_CURSOR_POSITION.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_CURSOR_POSITION) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_CURSOR_POSITION) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -887,7 +868,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_BUFFER.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_BUFFER) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_BUFFER) {
     auto handle = allocate();
     ASSERT_NE(nullptr, handle);
 
@@ -904,7 +885,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_SURFACE_DAMAGE.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_SURFACE_DAMAGE) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_SURFACE_DAMAGE) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -923,7 +904,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_BLEND_MODE.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_BLEND_MODE) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_BLEND_MODE) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -939,7 +920,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_COLOR.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_COLOR) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_COLOR) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -954,7 +935,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_COMPOSITION_TYPE.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_COMPOSITION_TYPE) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_COMPOSITION_TYPE) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -971,7 +952,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_DATASPACE.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_DATASPACE) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_DATASPACE) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -985,7 +966,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_DISPLAY_FRAME.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_DISPLAY_FRAME) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_DISPLAY_FRAME) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -999,7 +980,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_PLANE_ALPHA.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_PLANE_ALPHA) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_PLANE_ALPHA) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -1014,7 +995,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_SIDEBAND_STREAM.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_SIDEBAND_STREAM) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_SIDEBAND_STREAM) {
     if (!mComposer->hasCapability(IComposer::Capability::SIDEBAND_STREAM)) {
         GTEST_SUCCEED() << "no sideband stream support";
         return;
@@ -1036,7 +1017,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_SOURCE_CROP.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_SOURCE_CROP) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_SOURCE_CROP) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -1050,7 +1031,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_TRANSFORM.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_TRANSFORM) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_TRANSFORM) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -1071,7 +1052,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_VISIBLE_REGION.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_VISIBLE_REGION) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_VISIBLE_REGION) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -1090,7 +1071,7 @@
 /**
  * Test IComposerClient::Command::SET_LAYER_Z_ORDER.
  */
-TEST_F(GraphicsComposerHidlCommandTest, SET_LAYER_Z_ORDER) {
+TEST_P(GraphicsComposerHidlCommandTest, SET_LAYER_Z_ORDER) {
     Layer layer;
     ASSERT_NO_FATAL_FAILURE(layer =
                                 mComposerClient->createLayer(mPrimaryDisplay, kBufferSlotCount));
@@ -1102,6 +1083,16 @@
     execute();
 }
 
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, GraphicsComposerHidlCommandTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IComposer::descriptor)),
+        android::hardware::PrintInstanceNameToString);
+
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, GraphicsComposerHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IComposer::descriptor)),
+        android::hardware::PrintInstanceNameToString);
+
 }  // namespace
 }  // namespace vts
 }  // namespace V2_1
@@ -1109,13 +1100,3 @@
 }  // namespace graphics
 }  // namespace hardware
 }  // namespace android
-
-int main(int argc, char** argv) {
-    using android::hardware::graphics::composer::V2_1::vts::GraphicsComposerHidlEnvironment;
-    ::testing::AddGlobalTestEnvironment(GraphicsComposerHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    GraphicsComposerHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    ALOGI("Test result = %d", status);
-    return status;
-}