diff --git a/sensors/common/vts/OWNERS b/sensors/common/vts/OWNERS
new file mode 100644
index 0000000..759d87b
--- /dev/null
+++ b/sensors/common/vts/OWNERS
@@ -0,0 +1,7 @@
+# Sensors team
+bduddie@google.com
+bstack@google.com
+
+# VTS team
+trong@google.com
+yim@google.com
diff --git a/sensors/common/vts/utils/Android.bp b/sensors/common/vts/utils/Android.bp
new file mode 100644
index 0000000..affc56d
--- /dev/null
+++ b/sensors/common/vts/utils/Android.bp
@@ -0,0 +1,33 @@
+//
+// Copyright (C) 2018 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: "VtsHalSensorsTargetTestUtils",
+    srcs: [
+        "GrallocWrapper.cpp",
+    ],
+    export_include_dirs: [
+        "include",
+    ],
+    local_include_dirs: [
+        "include/sensors-vts-utils",
+    ],
+    static_libs: [
+        "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.mapper@2.0",
+    ],
+}
+
diff --git a/sensors/common/vts/utils/GrallocWrapper.cpp b/sensors/common/vts/utils/GrallocWrapper.cpp
new file mode 100644
index 0000000..7bed16d
--- /dev/null
+++ b/sensors/common/vts/utils/GrallocWrapper.cpp
@@ -0,0 +1,224 @@
+/*
+ * 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.
+ */
+
+#define LOG_TAG "GrallocWrapper"
+
+#include "GrallocWrapper.h"
+
+#include <utils/Log.h>
+
+namespace android {
+
+GrallocWrapper::GrallocWrapper() {
+    init();
+}
+
+void GrallocWrapper::init() {
+    mAllocator = allocator2::IAllocator::getService();
+    if (mAllocator == nullptr) {
+        ALOGE("Failed to get allocator service");
+    }
+
+    mMapper = mapper2::IMapper::getService();
+    if (mMapper == nullptr) {
+        ALOGE("Failed to get mapper service");
+    }
+    if (mMapper->isRemote()) {
+        ALOGE("Mapper is not in passthrough mode");
+    }
+}
+
+GrallocWrapper::~GrallocWrapper() {
+    for (auto bufferHandle : mClonedBuffers) {
+        auto buffer = const_cast<native_handle_t*>(bufferHandle);
+        native_handle_close(buffer);
+        native_handle_delete(buffer);
+    }
+    mClonedBuffers.clear();
+
+    for (auto bufferHandle : mImportedBuffers) {
+        auto buffer = const_cast<native_handle_t*>(bufferHandle);
+        if (mMapper->freeBuffer(buffer) != mapper2::Error::NONE) {
+            ALOGE("Failed to free buffer %p", buffer);
+        }
+    }
+    mImportedBuffers.clear();
+}
+
+sp<allocator2::IAllocator> GrallocWrapper::getAllocator() const {
+    return mAllocator;
+}
+
+std::string GrallocWrapper::dumpDebugInfo() {
+    std::string debugInfo;
+    mAllocator->dumpDebugInfo([&](const auto& tmpDebugInfo) { debugInfo = tmpDebugInfo.c_str(); });
+
+    return debugInfo;
+}
+
+const native_handle_t* GrallocWrapper::cloneBuffer(const hardware::hidl_handle& rawHandle) {
+    const native_handle_t* bufferHandle = native_handle_clone(rawHandle.getNativeHandle());
+
+    if (bufferHandle) {
+        mClonedBuffers.insert(bufferHandle);
+    }
+    return bufferHandle;
+}
+
+std::vector<const native_handle_t*> GrallocWrapper::allocate(
+    const mapper2::BufferDescriptor& descriptor, uint32_t count, bool import, uint32_t* outStride) {
+    std::vector<const native_handle_t*> bufferHandles;
+    bufferHandles.reserve(count);
+    mAllocator->allocate(descriptor, count,
+                         [&](const auto& tmpError, const auto& tmpStride, const auto& tmpBuffers) {
+                             if (mapper2::Error::NONE != tmpError) {
+                                 ALOGE("Failed to allocate buffers");
+                             }
+                             if (count != tmpBuffers.size()) {
+                                 ALOGE("Invalid buffer array");
+                             }
+
+                             for (uint32_t i = 0; i < count; i++) {
+                                 if (import) {
+                                     bufferHandles.push_back(importBuffer(tmpBuffers[i]));
+                                 } else {
+                                     bufferHandles.push_back(cloneBuffer(tmpBuffers[i]));
+                                 }
+                             }
+
+                             if (outStride) {
+                                 *outStride = tmpStride;
+                             }
+                         });
+
+    return bufferHandles;
+}
+
+const native_handle_t* GrallocWrapper::allocate(
+    const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo, bool import,
+    uint32_t* outStride) {
+    mapper2::BufferDescriptor descriptor = createDescriptor(descriptorInfo);
+    auto buffers = allocate(descriptor, 1, import, outStride);
+    return buffers[0];
+}
+
+sp<mapper2::IMapper> GrallocWrapper::getMapper() const {
+    return mMapper;
+}
+
+mapper2::BufferDescriptor GrallocWrapper::createDescriptor(
+    const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo) {
+    mapper2::BufferDescriptor descriptor;
+    mMapper->createDescriptor(descriptorInfo, [&](const auto& tmpError, const auto& tmpDescriptor) {
+        if (tmpError != mapper2::Error::NONE) {
+            ALOGE("Failed to create descriptor");
+        }
+        descriptor = tmpDescriptor;
+    });
+
+    return descriptor;
+}
+
+const native_handle_t* GrallocWrapper::importBuffer(const hardware::hidl_handle& rawHandle) {
+    const native_handle_t* bufferHandle = nullptr;
+    mMapper->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBuffer) {
+        if (tmpError != mapper2::Error::NONE) {
+            ALOGE("Failed to import buffer %p", rawHandle.getNativeHandle());
+        }
+        bufferHandle = static_cast<const native_handle_t*>(tmpBuffer);
+    });
+
+    if (bufferHandle) {
+        mImportedBuffers.insert(bufferHandle);
+    }
+
+    return bufferHandle;
+}
+
+void GrallocWrapper::freeBuffer(const native_handle_t* bufferHandle) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    if (mImportedBuffers.erase(bufferHandle)) {
+        mapper2::Error error = mMapper->freeBuffer(buffer);
+        if (error != mapper2::Error::NONE) {
+            ALOGE("Failed to free %p", buffer);
+        }
+    } else {
+        mClonedBuffers.erase(bufferHandle);
+        native_handle_close(buffer);
+        native_handle_delete(buffer);
+    }
+}
+
+void* GrallocWrapper::lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+                           const mapper2::IMapper::Rect& accessRegion, int acquireFence) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0);
+    hardware::hidl_handle acquireFenceHandle;
+    if (acquireFence >= 0) {
+        auto h = native_handle_init(acquireFenceStorage, 1, 0);
+        h->data[0] = acquireFence;
+        acquireFenceHandle = h;
+    }
+
+    void* data = nullptr;
+    mMapper->lock(buffer, cpuUsage, accessRegion, acquireFenceHandle,
+                  [&](const auto& tmpError, const auto& tmpData) {
+                      if (tmpError != mapper2::Error::NONE) {
+                          ALOGE("Failed to lock buffer %p", buffer);
+                      }
+                      data = tmpData;
+                  });
+
+    if (acquireFence >= 0) {
+        close(acquireFence);
+    }
+
+    return data;
+}
+
+int GrallocWrapper::unlock(const native_handle_t* bufferHandle) {
+    auto buffer = const_cast<native_handle_t*>(bufferHandle);
+
+    int releaseFence = -1;
+    mMapper->unlock(buffer, [&](const auto& tmpError, const auto& tmpReleaseFence) {
+        if (tmpError != mapper2::Error::NONE) {
+            ALOGE("Failed to unlock buffer %p", buffer);
+        }
+
+        auto fenceHandle = tmpReleaseFence.getNativeHandle();
+        if (fenceHandle) {
+            if (fenceHandle->numInts != 0) {
+                ALOGE("Invalid fence handle %p", fenceHandle);
+            }
+            if (fenceHandle->numFds == 1) {
+                releaseFence = dup(fenceHandle->data[0]);
+                if (releaseFence < 0) {
+                    ALOGE("Failed to dup fence fd");
+                }
+            } else {
+                if (fenceHandle->numFds != 0) {
+                    ALOGE("Invalid fence handle %p", fenceHandle);
+                }
+            }
+        }
+    });
+
+    return releaseFence;
+}
+
+}  // namespace android
diff --git a/sensors/common/vts/utils/include/sensors-vts-utils/GrallocWrapper.h b/sensors/common/vts/utils/include/sensors-vts-utils/GrallocWrapper.h
new file mode 100644
index 0000000..3bd73c3
--- /dev/null
+++ b/sensors/common/vts/utils/include/sensors-vts-utils/GrallocWrapper.h
@@ -0,0 +1,79 @@
+/*
+ * 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.
+ */
+
+#ifndef GRALLO_WRAPPER_H_
+#define GRALLO_WRAPPER_H_
+
+#include <unordered_set>
+
+#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
+#include <android/hardware/graphics/mapper/2.0/IMapper.h>
+
+namespace allocator2 = ::android::hardware::graphics::allocator::V2_0;
+namespace mapper2 = ::android::hardware::graphics::mapper::V2_0;
+
+namespace android {
+
+// Modified from hardware/interfaces/graphics/mapper/2.0/vts/functional/
+class GrallocWrapper {
+   public:
+    GrallocWrapper();
+    ~GrallocWrapper();
+
+    sp<allocator2::IAllocator> getAllocator() const;
+    sp<mapper2::IMapper> getMapper() const;
+
+    std::string dumpDebugInfo();
+
+    // When import is false, this simply calls IAllocator::allocate. When import
+    // is true, the returned buffers are also imported into the mapper.
+    //
+    // Either case, the returned buffers must be freed with freeBuffer.
+    std::vector<const native_handle_t*> allocate(const mapper2::BufferDescriptor& descriptor,
+                                                 uint32_t count, bool import = true,
+                                                 uint32_t* outStride = nullptr);
+    const native_handle_t* allocate(const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo,
+                                    bool import = true, uint32_t* outStride = nullptr);
+
+    mapper2::BufferDescriptor createDescriptor(
+        const mapper2::IMapper::BufferDescriptorInfo& descriptorInfo);
+
+    const native_handle_t* importBuffer(const hardware::hidl_handle& rawHandle);
+    void freeBuffer(const native_handle_t* bufferHandle);
+
+    // We use fd instead of hardware::hidl_handle in these functions to pass fences
+    // in and out of the mapper.  The ownership of the fd is always transferred
+    // with each of these functions.
+    void* lock(const native_handle_t* bufferHandle, uint64_t cpuUsage,
+               const mapper2::IMapper::Rect& accessRegion, int acquireFence);
+
+    int unlock(const native_handle_t* bufferHandle);
+
+   private:
+    void init();
+    const native_handle_t* cloneBuffer(const hardware::hidl_handle& rawHandle);
+
+    sp<allocator2::IAllocator> mAllocator;
+    sp<mapper2::IMapper> mMapper;
+
+    // Keep track of all cloned and imported handles.  When a test fails with
+    // ASSERT_*, the destructor will free the handles for the test.
+    std::unordered_set<const native_handle_t*> mClonedBuffers;
+    std::unordered_set<const native_handle_t*> mImportedBuffers;
+};
+
+}  // namespace android
+#endif  // GRALLO_WRAPPER_H_