diff --git a/graphics/mapper/2.1/utils/OWNERS b/graphics/mapper/2.1/utils/OWNERS
new file mode 100644
index 0000000..3aa5fa1
--- /dev/null
+++ b/graphics/mapper/2.1/utils/OWNERS
@@ -0,0 +1,4 @@
+# Graphics team
+jessehall@google.com
+olv@google.com
+stoza@google.com
diff --git a/graphics/mapper/2.1/utils/vts/Android.bp b/graphics/mapper/2.1/utils/vts/Android.bp
new file mode 100644
index 0000000..ca02aad
--- /dev/null
+++ b/graphics/mapper/2.1/utils/vts/Android.bp
@@ -0,0 +1,39 @@
+//
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+cc_library_static {
+    name: "android.hardware.graphics.mapper@2.1-vts",
+    defaults: ["hidl_defaults"],
+    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",
+        "android.hardware.graphics.mapper@2.1",
+    ],
+    export_static_lib_headers: [
+        "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.mapper@2.0",
+        "android.hardware.graphics.mapper@2.0-vts",
+        "android.hardware.graphics.mapper@2.1",
+    ],
+    export_include_dirs: ["include"],
+}
diff --git a/graphics/mapper/2.1/utils/vts/MapperVts.cpp b/graphics/mapper/2.1/utils/vts/MapperVts.cpp
new file mode 100644
index 0000000..0aaa926
--- /dev/null
+++ b/graphics/mapper/2.1/utils/vts/MapperVts.cpp
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <mapper-vts/2.1/MapperVts.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace mapper {
+namespace V2_1 {
+namespace vts {
+
+using V2_0::Error;
+
+// abuse VTS to check binary compatibility between BufferDescriptorInfos
+using OldBufferDescriptorInfo =
+    android::hardware::graphics::mapper::V2_0::IMapper::BufferDescriptorInfo;
+static_assert(sizeof(OldBufferDescriptorInfo) == sizeof(IMapper::BufferDescriptorInfo) &&
+                  offsetof(OldBufferDescriptorInfo, width) ==
+                      offsetof(IMapper::BufferDescriptorInfo, width) &&
+                  offsetof(OldBufferDescriptorInfo, height) ==
+                      offsetof(IMapper::BufferDescriptorInfo, height) &&
+                  offsetof(OldBufferDescriptorInfo, layerCount) ==
+                      offsetof(IMapper::BufferDescriptorInfo, layerCount) &&
+                  offsetof(OldBufferDescriptorInfo, format) ==
+                      offsetof(IMapper::BufferDescriptorInfo, format) &&
+                  offsetof(OldBufferDescriptorInfo, usage) ==
+                      offsetof(IMapper::BufferDescriptorInfo, usage),
+              "");
+
+Gralloc::Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName)
+    : V2_0::vts::Gralloc(allocatorServiceName, mapperServiceName) {
+    if (::testing::Test::HasFatalFailure()) {
+        return;
+    }
+    init();
+}
+
+void Gralloc::init() {
+    mMapperV2_1 = IMapper::castFrom(V2_0::vts::Gralloc::getMapper());
+    ASSERT_NE(nullptr, mMapperV2_1.get()) << "failed to get mapper 2.1 service";
+}
+
+sp<IMapper> Gralloc::getMapper() const {
+    return mMapperV2_1;
+}
+
+bool Gralloc::validateBufferSize(const native_handle_t* bufferHandle,
+                                 const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                 uint32_t stride) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    Error error = mMapperV2_1->validateBufferSize(buffer, descriptorInfo, stride);
+    return error == Error::NONE;
+}
+
+void Gralloc::getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
+                               uint32_t* outNumInts) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    *outNumFds = 0;
+    *outNumInts = 0;
+    mMapperV2_1->getTransportSize(
+        buffer, [&](const auto& tmpError, const auto& tmpNumFds, const auto& tmpNumInts) {
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to get transport size";
+            ASSERT_GE(bufferHandle->numFds, int(tmpNumFds)) << "invalid numFds " << tmpNumFds;
+            ASSERT_GE(bufferHandle->numInts, int(tmpNumInts)) << "invalid numInts " << tmpNumInts;
+
+            *outNumFds = tmpNumFds;
+            *outNumInts = tmpNumInts;
+        });
+}
+
+BufferDescriptor Gralloc::createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo) {
+    BufferDescriptor descriptor;
+    mMapperV2_1->createDescriptor_2_1(
+        descriptorInfo, [&](const auto& tmpError, const auto& tmpDescriptor) {
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to create descriptor";
+            descriptor = tmpDescriptor;
+        });
+
+    return descriptor;
+}
+
+const native_handle_t* Gralloc::allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                         bool import, uint32_t* outStride) {
+    BufferDescriptor descriptor = createDescriptor(descriptorInfo);
+    if (::testing::Test::HasFatalFailure()) {
+        return nullptr;
+    }
+
+    auto buffers = V2_0::vts::Gralloc::allocate(descriptor, 1, import, outStride);
+    if (::testing::Test::HasFatalFailure()) {
+        return nullptr;
+    }
+
+    return buffers[0];
+}
+
+}  // namespace vts
+}  // namespace V2_1
+}  // namespace mapper
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
diff --git a/graphics/mapper/2.1/utils/vts/include/mapper-vts/2.1/MapperVts.h b/graphics/mapper/2.1/utils/vts/include/mapper-vts/2.1/MapperVts.h
new file mode 100644
index 0000000..b7fa751
--- /dev/null
+++ b/graphics/mapper/2.1/utils/vts/include/mapper-vts/2.1/MapperVts.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#pragma once
+
+#include <android/hardware/graphics/mapper/2.1/IMapper.h>
+#include <mapper-vts/2.0/MapperVts.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace mapper {
+namespace V2_1 {
+namespace vts {
+
+using android::hardware::graphics::allocator::V2_0::IAllocator;
+using V2_0::BufferDescriptor;
+
+// A wrapper to IAllocator and IMapper.
+class Gralloc : public V2_0::vts::Gralloc {
+   public:
+    Gralloc(const std::string& allocatorServiceName, const std::string& mapperServiceName);
+
+    sp<IMapper> getMapper() const;
+
+    bool validateBufferSize(const native_handle_t* bufferHandle,
+                            const IMapper::BufferDescriptorInfo& descriptorInfo, uint32_t stride);
+    void getTransportSize(const native_handle_t* bufferHandle, uint32_t* outNumFds,
+                          uint32_t* outNumInts);
+
+    BufferDescriptor createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo);
+
+    const native_handle_t* allocate(const IMapper::BufferDescriptorInfo& descriptorInfo,
+                                    bool import = true, uint32_t* outStride = nullptr);
+
+   protected:
+    void init();
+
+    sp<IMapper> mMapperV2_1;
+};
+
+}  // namespace vts
+}  // namespace V2_1
+}  // namespace mapper
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android