diff --git a/compatibility_matrices/compatibility_matrix.9.xml b/compatibility_matrices/compatibility_matrix.9.xml
index ed03f7c..580cb93 100644
--- a/compatibility_matrices/compatibility_matrix.9.xml
+++ b/compatibility_matrices/compatibility_matrix.9.xml
@@ -739,7 +739,7 @@
     </hal>
     <hal format="aidl" optional="true">
         <name>android.hardware.weaver</name>
-        <version>1</version>
+        <version>2</version>
         <interface>
             <name>IWeaver</name>
             <instance>default</instance>
diff --git a/weaver/1.0/vts/functional/Android.bp b/weaver/1.0/vts/functional/Android.bp
deleted file mode 100644
index cc1d284..0000000
--- a/weaver/1.0/vts/functional/Android.bp
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// 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.
-//
-
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "hardware_interfaces_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["hardware_interfaces_license"],
-}
-
-cc_test {
-    name: "VtsHalWeaverV1_0TargetTest",
-    defaults: ["VtsHalTargetTestDefaults"],
-    srcs: ["VtsHalWeaverV1_0TargetTest.cpp"],
-    static_libs: ["android.hardware.weaver@1.0"],
-    test_suites: ["general-tests", "vts"],
-}
diff --git a/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp b/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp
deleted file mode 100644
index 66465a9..0000000
--- a/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- * 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 <android/hardware/weaver/1.0/IWeaver.h>
-#include <gtest/gtest.h>
-#include <hidl/GtestPrinter.h>
-#include <hidl/ServiceManagement.h>
-
-#include <limits>
-
-using ::android::hardware::weaver::V1_0::IWeaver;
-using ::android::hardware::weaver::V1_0::WeaverConfig;
-using ::android::hardware::weaver::V1_0::WeaverReadStatus;
-using ::android::hardware::weaver::V1_0::WeaverReadResponse;
-using ::android::hardware::weaver::V1_0::WeaverStatus;
-using ::android::hardware::Return;
-using ::android::sp;
-
-const std::vector<uint8_t> KEY{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
-const std::vector<uint8_t> WRONG_KEY{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-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};
-
-struct WeaverHidlTest : public ::testing::TestWithParam<std::string> {
-    virtual void SetUp() override {
-        weaver = IWeaver::getService(GetParam());
-        ASSERT_NE(weaver, nullptr);
-    }
-
-    virtual void TearDown() override {}
-
-    sp<IWeaver> weaver;
-};
-
-/*
- * Checks config values are suitably large
- */
-TEST_P(WeaverHidlTest, GetConfig) {
-    WeaverStatus status;
-    WeaverConfig config;
-
-    bool callbackCalled = false;
-    auto ret = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        callbackCalled = true;
-        status = s;
-        config = c;
-    });
-    ASSERT_TRUE(ret.isOk());
-    ASSERT_TRUE(callbackCalled);
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    EXPECT_GE(config.slots, 16u);
-    EXPECT_GE(config.keySize, 16u);
-    EXPECT_GE(config.valueSize, 16u);
-}
-
-/*
- * Gets the config twice and checks they are the same
- */
-TEST_P(WeaverHidlTest, GettingConfigMultipleTimesGivesSameResult) {
-    WeaverConfig config1;
-    WeaverConfig config2;
-
-    WeaverStatus status;
-    bool callbackCalled = false;
-    auto ret = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        callbackCalled = true;
-        status = s;
-        config1 = c;
-    });
-    ASSERT_TRUE(ret.isOk());
-    ASSERT_TRUE(callbackCalled);
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    callbackCalled = false;
-    ret = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        callbackCalled = true;
-        status = s;
-        config2 = c;
-    });
-    ASSERT_TRUE(ret.isOk());
-    ASSERT_TRUE(callbackCalled);
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    EXPECT_EQ(config1, config2);
-}
-
-/*
- * Gets the number of slots from the config and writes a key and value to the last one
- */
-TEST_P(WeaverHidlTest, WriteToLastSlot) {
-    WeaverStatus status;
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        status = s;
-        config = c;
-    });
-    ASSERT_TRUE(configRet.isOk());
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    const uint32_t lastSlot = config.slots - 1;
-    const auto writeRet = weaver->write(lastSlot, KEY, VALUE);
-    ASSERT_TRUE(writeRet.isOk());
-    ASSERT_EQ(writeRet, WeaverStatus::OK);
-}
-
-/*
- * Writes a key and value to a slot
- * Reads the slot with the same key and receives the value that was previously written
- */
-TEST_P(WeaverHidlTest, WriteFollowedByReadGivesTheSameValue) {
-    constexpr uint32_t slotId = 0;
-    const auto ret = weaver->write(slotId, KEY, VALUE);
-    ASSERT_TRUE(ret.isOk());
-    ASSERT_EQ(ret, WeaverStatus::OK);
-
-    bool callbackCalled = false;
-    WeaverReadStatus status;
-    std::vector<uint8_t> readValue;
-    uint32_t timeout;
-    const auto readRet = weaver->read(slotId, KEY, [&](WeaverReadStatus s, WeaverReadResponse r) {
-        callbackCalled = true;
-        status = s;
-        readValue = r.value;
-        timeout = r.timeout;
-    });
-    ASSERT_TRUE(readRet.isOk());
-    ASSERT_TRUE(callbackCalled);
-    ASSERT_EQ(status, WeaverReadStatus::OK);
-    EXPECT_EQ(readValue, VALUE);
-    EXPECT_EQ(timeout, 0u);
-}
-
-/*
- * Writes a key and value to a slot
- * Overwrites the slot with a new key and value
- * Reads the slot with the new key and receives the new value
- */
-TEST_P(WeaverHidlTest, OverwritingSlotUpdatesTheValue) {
-    constexpr uint32_t slotId = 0;
-    const auto initialWriteRet = weaver->write(slotId, WRONG_KEY, VALUE);
-    ASSERT_TRUE(initialWriteRet.isOk());
-    ASSERT_EQ(initialWriteRet, WeaverStatus::OK);
-
-    const auto overwriteRet = weaver->write(slotId, KEY, OTHER_VALUE);
-    ASSERT_TRUE(overwriteRet.isOk());
-    ASSERT_EQ(overwriteRet, WeaverStatus::OK);
-
-    bool callbackCalled = false;
-    WeaverReadStatus status;
-    std::vector<uint8_t> readValue;
-    uint32_t timeout;
-    const auto readRet = weaver->read(slotId, KEY, [&](WeaverReadStatus s, WeaverReadResponse r) {
-        callbackCalled = true;
-        status = s;
-        readValue = r.value;
-        timeout = r.timeout;
-    });
-    ASSERT_TRUE(readRet.isOk());
-    ASSERT_TRUE(callbackCalled);
-    ASSERT_EQ(status, WeaverReadStatus::OK);
-    EXPECT_EQ(readValue, OTHER_VALUE);
-    EXPECT_EQ(timeout, 0u);
-}
-
-/*
- * Writes a key and value to a slot
- * Reads the slot with a different key so does not receive the value
- */
-TEST_P(WeaverHidlTest, WriteFollowedByReadWithWrongKeyDoesNotGiveTheValue) {
-    constexpr uint32_t slotId = 0;
-    const auto ret = weaver->write(slotId, KEY, VALUE);
-    ASSERT_TRUE(ret.isOk());
-    ASSERT_EQ(ret, WeaverStatus::OK);
-
-    bool callbackCalled = false;
-    WeaverReadStatus status;
-    std::vector<uint8_t> readValue;
-    const auto readRet =
-        weaver->read(slotId, WRONG_KEY, [&](WeaverReadStatus s, WeaverReadResponse r) {
-            callbackCalled = true;
-            status = s;
-            readValue = r.value;
-        });
-    ASSERT_TRUE(callbackCalled);
-    ASSERT_TRUE(readRet.isOk());
-    ASSERT_EQ(status, WeaverReadStatus::INCORRECT_KEY);
-    EXPECT_TRUE(readValue.empty());
-}
-
-/*
- * Writing to an invalid slot fails
- */
-TEST_P(WeaverHidlTest, WritingToInvalidSlotFails) {
-    WeaverStatus status;
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        status = s;
-        config = c;
-    });
-    ASSERT_TRUE(configRet.isOk());
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    if (config.slots == std::numeric_limits<uint32_t>::max()) {
-        // If there are no invalid slots then pass
-        return;
-    }
-
-    const auto writeRet = weaver->write(config.slots, KEY, VALUE);
-    ASSERT_TRUE(writeRet.isOk());
-    ASSERT_EQ(writeRet, WeaverStatus::FAILED);
-}
-
-/*
- * Reading from an invalid slot fails rather than incorrect key
- */
-TEST_P(WeaverHidlTest, ReadingFromInvalidSlotFails) {
-    WeaverStatus status;
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        status = s;
-        config = c;
-    });
-    ASSERT_TRUE(configRet.isOk());
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    if (config.slots == std::numeric_limits<uint32_t>::max()) {
-        // If there are no invalid slots then pass
-        return;
-    }
-
-    bool callbackCalled = false;
-    WeaverReadStatus readStatus;
-    std::vector<uint8_t> readValue;
-    uint32_t timeout;
-    const auto readRet =
-        weaver->read(config.slots, KEY, [&](WeaverReadStatus s, WeaverReadResponse r) {
-            callbackCalled = true;
-            readStatus = s;
-            readValue = r.value;
-            timeout = r.timeout;
-        });
-    ASSERT_TRUE(callbackCalled);
-    ASSERT_TRUE(readRet.isOk());
-    ASSERT_EQ(readStatus, WeaverReadStatus::FAILED);
-    EXPECT_TRUE(readValue.empty());
-    EXPECT_EQ(timeout, 0u);
-}
-
-/*
- * Writing a key that is too large fails
- */
-TEST_P(WeaverHidlTest, WriteWithTooLargeKeyFails) {
-    WeaverStatus status;
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        status = s;
-        config = c;
-    });
-    ASSERT_TRUE(configRet.isOk());
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    std::vector<uint8_t> bigKey(config.keySize + 1);
-
-    constexpr uint32_t slotId = 0;
-    const auto writeRet = weaver->write(slotId, bigKey, VALUE);
-    ASSERT_TRUE(writeRet.isOk());
-    ASSERT_EQ(writeRet, WeaverStatus::FAILED);
-}
-
-/*
- * Writing a value that is too large fails
- */
-TEST_P(WeaverHidlTest, WriteWithTooLargeValueFails) {
-    WeaverStatus status;
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        status = s;
-        config = c;
-    });
-    ASSERT_TRUE(configRet.isOk());
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    std::vector<uint8_t> bigValue(config.valueSize + 1);
-
-    constexpr uint32_t slotId = 0;
-    const auto writeRet = weaver->write(slotId, KEY, bigValue);
-    ASSERT_TRUE(writeRet.isOk());
-    ASSERT_EQ(writeRet, WeaverStatus::FAILED);
-}
-
-/*
- * Reading with a key that is loo large fails
- */
-TEST_P(WeaverHidlTest, ReadWithTooLargeKeyFails) {
-    WeaverStatus status;
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig([&](WeaverStatus s, WeaverConfig c) {
-        status = s;
-        config = c;
-    });
-    ASSERT_TRUE(configRet.isOk());
-    ASSERT_EQ(status, WeaverStatus::OK);
-
-    std::vector<uint8_t> bigKey(config.keySize + 1);
-
-    constexpr uint32_t slotId = 0;
-    bool callbackCalled = false;
-    WeaverReadStatus readStatus;
-    std::vector<uint8_t> readValue;
-    uint32_t timeout;
-    const auto readRet =
-        weaver->read(slotId, bigKey, [&](WeaverReadStatus s, WeaverReadResponse r) {
-            callbackCalled = true;
-            readStatus = s;
-            readValue = r.value;
-            timeout = r.timeout;
-        });
-    ASSERT_TRUE(callbackCalled);
-    ASSERT_TRUE(readRet.isOk());
-    ASSERT_EQ(readStatus, WeaverReadStatus::FAILED);
-    EXPECT_TRUE(readValue.empty());
-    EXPECT_EQ(timeout, 0u);
-}
-
-GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(WeaverHidlTest);
-INSTANTIATE_TEST_SUITE_P(
-        PerInstance, WeaverHidlTest,
-        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IWeaver::descriptor)),
-        android::hardware::PrintInstanceNameToString);
diff --git a/weaver/aidl/Android.bp b/weaver/aidl/Android.bp
index caa92aa..74cec99 100644
--- a/weaver/aidl/Android.bp
+++ b/weaver/aidl/Android.bp
@@ -17,5 +17,10 @@
             platform_apis: true,
         },
     },
-    versions: ["1"],
+    versions_with_info: [
+        {
+            version: "1",
+            imports: [],
+        },
+    ],
 }
diff --git a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadResponse.aidl b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadResponse.aidl
index 47ee4c8..96e528f 100644
--- a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadResponse.aidl
+++ b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadResponse.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 The Android Open Source Project
+ * Copyright 2022 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.
@@ -36,4 +36,5 @@
 parcelable WeaverReadResponse {
   long timeout;
   byte[] value;
+  android.hardware.weaver.WeaverReadStatus status = android.hardware.weaver.WeaverReadStatus.FAILED;
 }
diff --git a/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadStatus.aidl b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadStatus.aidl
new file mode 100644
index 0000000..fce9758
--- /dev/null
+++ b/weaver/aidl/aidl_api/android.hardware.weaver/current/android/hardware/weaver/WeaverReadStatus.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.weaver;
+@Backing(type="int") @VintfStability
+enum WeaverReadStatus {
+  OK = 0,
+  FAILED = 1,
+  INCORRECT_KEY = 2,
+  THROTTLE = 3,
+}
diff --git a/weaver/aidl/android/hardware/weaver/IWeaver.aidl b/weaver/aidl/android/hardware/weaver/IWeaver.aidl
index f51034a..ae816ef 100644
--- a/weaver/aidl/android/hardware/weaver/IWeaver.aidl
+++ b/weaver/aidl/android/hardware/weaver/IWeaver.aidl
@@ -20,8 +20,8 @@
 import android.hardware.weaver.WeaverReadResponse;
 
 /**
- * Weaver provides secure storage of secret values that may only be read if the
- * corresponding key has been presented.
+ * Weaver provides secure persistent storage of secret values that may only be
+ * read if the corresponding key has been presented.
  *
  * The storage must be secure as the device's user authentication and encryption
  * relies on the security of these values. The cardinality of the domains of the
@@ -76,7 +76,8 @@
     WeaverReadResponse read(in int slotId, in byte[] key);
 
     /**
-     * Overwrites the identified slot with the provided key and value.
+     * Overwrites the identified slot with the provided key and value, rendering
+     * the previous contents of the slot permanently unrecoverable.
      *
      * The new values are written regardless of the current state of the slot in
      * order to remain idempotent.
diff --git a/weaver/aidl/android/hardware/weaver/WeaverReadResponse.aidl b/weaver/aidl/android/hardware/weaver/WeaverReadResponse.aidl
index ec006e8..17ea718 100644
--- a/weaver/aidl/android/hardware/weaver/WeaverReadResponse.aidl
+++ b/weaver/aidl/android/hardware/weaver/WeaverReadResponse.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 The Android Open Source Project
+ * Copyright 2022 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.
@@ -16,15 +16,22 @@
 
 package android.hardware.weaver;
 
+import android.hardware.weaver.WeaverReadStatus;
+
 @VintfStability
 parcelable WeaverReadResponse {
     /**
-     * The time to wait, in milliseconds, before making the next request.
+     * The time to wait, in milliseconds, before making the next request,
+     * must be greater than or equal to zero and less than INT_MAX.
      */
     long timeout;
     /**
      * The value read from the slot or empty if the value was not read.
      */
     byte[] value;
+    /**
+     * Status from WeaverReadStatus
+     */
+    WeaverReadStatus status = WeaverReadStatus.FAILED;
 }
 
diff --git a/weaver/aidl/android/hardware/weaver/WeaverReadStatus.aidl b/weaver/aidl/android/hardware/weaver/WeaverReadStatus.aidl
new file mode 100644
index 0000000..36e731f
--- /dev/null
+++ b/weaver/aidl/android/hardware/weaver/WeaverReadStatus.aidl
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+package android.hardware.weaver;
+
+@VintfStability
+@Backing(type="int")
+enum WeaverReadStatus {
+    OK,
+    FAILED,
+    INCORRECT_KEY,
+    THROTTLE,
+}
diff --git a/weaver/aidl/default/Android.bp b/weaver/aidl/default/Android.bp
index 70d9171..494cb1b 100644
--- a/weaver/aidl/default/Android.bp
+++ b/weaver/aidl/default/Android.bp
@@ -34,7 +34,7 @@
         "Weaver.cpp",
     ],
     shared_libs: [
-        "android.hardware.weaver-V1-ndk",
+        "android.hardware.weaver-V2-ndk",
         "libbase",
         "libbinder_ndk",
     ],
diff --git a/weaver/aidl/default/Weaver.cpp b/weaver/aidl/default/Weaver.cpp
index 6b77924..c9ffe85 100644
--- a/weaver/aidl/default/Weaver.cpp
+++ b/weaver/aidl/default/Weaver.cpp
@@ -37,18 +37,19 @@
 }
 
 ::ndk::ScopedAStatus Weaver::read(int32_t in_slotId, const std::vector<uint8_t>& in_key, WeaverReadResponse* out_response) {
+    using ::aidl::android::hardware::weaver::WeaverReadStatus;
 
     if (in_slotId > 15 || in_key.size() > 16) {
-        *out_response = {0, {}};
-        return ndk::ScopedAStatus(AStatus_fromServiceSpecificError(Weaver::STATUS_FAILED));
+        *out_response = {0, {}, WeaverReadStatus::FAILED};
+        return ndk::ScopedAStatus::ok();
     }
 
     if (slot_array[in_slotId].key != in_key) {
-        *out_response = {0, {}};
-        return ndk::ScopedAStatus(AStatus_fromServiceSpecificError(Weaver::STATUS_INCORRECT_KEY));
+        *out_response = {0, {}, WeaverReadStatus::INCORRECT_KEY};
+        return ndk::ScopedAStatus::ok();
     }
 
-    *out_response = {0, slot_array[in_slotId].value};
+    *out_response = {0, slot_array[in_slotId].value, WeaverReadStatus::OK};
 
     return ::ndk::ScopedAStatus::ok();
 }
diff --git a/weaver/aidl/default/android.hardware.weaver-service.example.xml b/weaver/aidl/default/android.hardware.weaver-service.example.xml
index ed291cd..bfe4396 100644
--- a/weaver/aidl/default/android.hardware.weaver-service.example.xml
+++ b/weaver/aidl/default/android.hardware.weaver-service.example.xml
@@ -1,7 +1,7 @@
 <manifest version="1.0" type="device">
     <hal format="aidl">
         <name>android.hardware.weaver</name>
-        <version>1</version>
+        <version>2</version>
         <interface>
             <name>IWeaver</name>
             <instance>default</instance>
diff --git a/weaver/aidl/vts/VtsHalWeaverTargetTest.cpp b/weaver/aidl/vts/VtsHalWeaverTargetTest.cpp
deleted file mode 100644
index 878c762..0000000
--- a/weaver/aidl/vts/VtsHalWeaverTargetTest.cpp
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * Copyright (C) 2020 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 <aidl/Gtest.h>
-#include <aidl/Vintf.h>
-
-#include <aidl/android/hardware/weaver/IWeaver.h>
-#include <android/binder_manager.h>
-#include <android/binder_process.h>
-
-#include <limits>
-
-using ::aidl::android::hardware::weaver::IWeaver;
-using ::aidl::android::hardware::weaver::WeaverConfig;
-using ::aidl::android::hardware::weaver::WeaverReadResponse;
-
-using ::ndk::SpAIBinder;
-
-const std::vector<uint8_t> KEY{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
-const std::vector<uint8_t> WRONG_KEY{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-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};
-
-struct WeaverAidlTest : public ::testing::TestWithParam<std::string> {
-    virtual void SetUp() override {
-        weaver = IWeaver::fromBinder(
-            SpAIBinder(AServiceManager_waitForService(GetParam().c_str())));
-        ASSERT_NE(weaver, nullptr);
-    }
-
-    virtual void TearDown() override {}
-
-    std::shared_ptr<IWeaver> weaver;
-};
-
-/*
- * Checks config values are suitably large
- */
-TEST_P(WeaverAidlTest, GetConfig) {
-    WeaverConfig config;
-
-    auto ret = weaver->getConfig(&config);
-
-    ASSERT_TRUE(ret.isOk());
-
-    EXPECT_GE(config.slots, 16u);
-    EXPECT_GE(config.keySize, 16u);
-    EXPECT_GE(config.valueSize, 16u);
-}
-
-/*
- * Gets the config twice and checks they are the same
- */
-TEST_P(WeaverAidlTest, GettingConfigMultipleTimesGivesSameResult) {
-    WeaverConfig config1;
-    WeaverConfig config2;
-
-    auto ret = weaver->getConfig(&config1);
-    ASSERT_TRUE(ret.isOk());
-
-    ret = weaver->getConfig(&config2);
-    ASSERT_TRUE(ret.isOk());
-
-    EXPECT_EQ(config1, config2);
-}
-
-/*
- * Gets the number of slots from the config and writes a key and value to the last one
- */
-TEST_P(WeaverAidlTest, WriteToLastSlot) {
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig(&config);
-
-    ASSERT_TRUE(configRet.isOk());
-
-    const uint32_t lastSlot = config.slots - 1;
-    const auto writeRet = weaver->write(lastSlot, KEY, VALUE);
-    ASSERT_TRUE(writeRet.isOk());
-}
-
-/*
- * Writes a key and value to a slot
- * Reads the slot with the same key and receives the value that was previously written
- */
-TEST_P(WeaverAidlTest, WriteFollowedByReadGivesTheSameValue) {
-    constexpr uint32_t slotId = 0;
-    const auto ret = weaver->write(slotId, KEY, VALUE);
-    ASSERT_TRUE(ret.isOk());
-
-    WeaverReadResponse response;
-    std::vector<uint8_t> readValue;
-    uint32_t timeout;
-    const auto readRet = weaver->read(slotId, KEY, &response);
-
-    readValue = response.value;
-    timeout = response.timeout;
-
-    ASSERT_TRUE(readRet.isOk());
-    EXPECT_EQ(readValue, VALUE);
-    EXPECT_EQ(timeout, 0u);
-}
-
-/*
- * Writes a key and value to a slot
- * Overwrites the slot with a new key and value
- * Reads the slot with the new key and receives the new value
- */
-TEST_P(WeaverAidlTest, OverwritingSlotUpdatesTheValue) {
-    constexpr uint32_t slotId = 0;
-    const auto initialWriteRet = weaver->write(slotId, WRONG_KEY, VALUE);
-    ASSERT_TRUE(initialWriteRet.isOk());
-
-    const auto overwriteRet = weaver->write(slotId, KEY, OTHER_VALUE);
-    ASSERT_TRUE(overwriteRet.isOk());
-
-    WeaverReadResponse response;
-    std::vector<uint8_t> readValue;
-    uint32_t timeout;
-    const auto readRet = weaver->read(slotId, KEY, &response);
-
-    readValue = response.value;
-    timeout = response.timeout;
-
-    ASSERT_TRUE(readRet.isOk());
-    EXPECT_EQ(readValue, OTHER_VALUE);
-    EXPECT_EQ(timeout, 0u);
-}
-
-/*
- * Writes a key and value to a slot
- * Reads the slot with a different key so does not receive the value
- */
-TEST_P(WeaverAidlTest, WriteFollowedByReadWithWrongKeyDoesNotGiveTheValue) {
-    constexpr uint32_t slotId = 0;
-    const auto ret = weaver->write(slotId, KEY, VALUE);
-    ASSERT_TRUE(ret.isOk());
-
-    WeaverReadResponse response;
-    std::vector<uint8_t> readValue;
-    const auto readRet =
-        weaver->read(slotId, WRONG_KEY, &response);
-
-    readValue = response.value;
-
-    ASSERT_FALSE(readRet.isOk());
-    ASSERT_EQ(EX_SERVICE_SPECIFIC, readRet.getExceptionCode());
-    ASSERT_EQ(IWeaver::STATUS_INCORRECT_KEY, readRet.getServiceSpecificError());
-    EXPECT_TRUE(readValue.empty());
-}
-
-/*
- * Writing to an invalid slot fails
- */
-TEST_P(WeaverAidlTest, WritingToInvalidSlotFails) {
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig(&config);
-    ASSERT_TRUE(configRet.isOk());
-
-    if (config.slots == std::numeric_limits<uint32_t>::max()) {
-        // If there are no invalid slots then pass
-        return;
-    }
-
-    const auto writeRet = weaver->write(config.slots, KEY, VALUE);
-    ASSERT_FALSE(writeRet.isOk());
-}
-
-/*
- * Reading from an invalid slot fails rather than incorrect key
- */
-TEST_P(WeaverAidlTest, ReadingFromInvalidSlotFails) {
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig(&config);
-    ASSERT_TRUE(configRet.isOk());
-
-    if (config.slots == std::numeric_limits<uint32_t>::max()) {
-        // If there are no invalid slots then pass
-        return;
-    }
-
-    WeaverReadResponse response;
-    std::vector<uint8_t> readValue;
-    uint32_t timeout;
-    const auto readRet =
-        weaver->read(config.slots, KEY, &response);
-
-    readValue = response.value;
-    timeout = response.timeout;
-
-    ASSERT_FALSE(readRet.isOk());
-    ASSERT_EQ(EX_SERVICE_SPECIFIC, readRet.getExceptionCode());
-    ASSERT_EQ(IWeaver::STATUS_FAILED, readRet.getServiceSpecificError());
-    EXPECT_TRUE(readValue.empty());
-    EXPECT_EQ(timeout, 0u);
-}
-
-/*
- * Writing a key that is too large fails
- */
-TEST_P(WeaverAidlTest, WriteWithTooLargeKeyFails) {
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig(&config);
-    ASSERT_TRUE(configRet.isOk());
-
-    std::vector<uint8_t> bigKey(config.keySize + 1);
-
-    constexpr uint32_t slotId = 0;
-    const auto writeRet = weaver->write(slotId, bigKey, VALUE);
-    ASSERT_FALSE(writeRet.isOk());
-}
-
-/*
- * Writing a value that is too large fails
- */
-TEST_P(WeaverAidlTest, WriteWithTooLargeValueFails) {
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig(&config);
-    ASSERT_TRUE(configRet.isOk());
-
-    std::vector<uint8_t> bigValue(config.valueSize + 1);
-
-    constexpr uint32_t slotId = 0;
-    const auto writeRet = weaver->write(slotId, KEY, bigValue);
-    ASSERT_FALSE(writeRet.isOk());
-}
-
-/*
- * Reading with a key that is loo large fails
- */
-TEST_P(WeaverAidlTest, ReadWithTooLargeKeyFails) {
-    WeaverConfig config;
-    const auto configRet = weaver->getConfig(&config);
-    ASSERT_TRUE(configRet.isOk());
-
-    std::vector<uint8_t> bigKey(config.keySize + 1);
-
-    constexpr uint32_t slotId = 0;
-    WeaverReadResponse response;
-    std::vector<uint8_t> readValue;
-    uint32_t timeout;
-    const auto readRet =
-        weaver->read(slotId, bigKey, &response);
-
-    readValue = response.value;
-    timeout = response.timeout;
-
-    ASSERT_FALSE(readRet.isOk());
-    ASSERT_EQ(EX_SERVICE_SPECIFIC, readRet.getExceptionCode());
-    ASSERT_EQ(IWeaver::STATUS_FAILED, readRet.getServiceSpecificError());
-    EXPECT_TRUE(readValue.empty());
-    EXPECT_EQ(timeout, 0u);
-}
-
-GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(WeaverAidlTest);
-INSTANTIATE_TEST_SUITE_P(
-        PerInstance, WeaverAidlTest,
-        testing::ValuesIn(android::getAidlHalInstanceNames(IWeaver::descriptor)),
-        android::PrintInstanceNameToString);
-
-int main(int argc, char** argv) {
-    ::testing::InitGoogleTest(&argc, argv);
-    ABinderProcess_setThreadPoolMaxThreadCount(1);
-    ABinderProcess_startThreadPool();
-    return RUN_ALL_TESTS();
-}
diff --git a/weaver/aidl/vts/Android.bp b/weaver/vts/Android.bp
similarity index 92%
rename from weaver/aidl/vts/Android.bp
rename to weaver/vts/Android.bp
index cf1661c..ee03b28 100644
--- a/weaver/aidl/vts/Android.bp
+++ b/weaver/vts/Android.bp
@@ -34,7 +34,10 @@
         "libbinder_ndk",
         "libbase",
     ],
-    static_libs: ["android.hardware.weaver-V1-ndk"],
+    static_libs: [
+        "android.hardware.weaver-V2-ndk",
+        "android.hardware.weaver@1.0",
+    ],
     test_suites: [
         "general-tests",
         "vts",
diff --git a/weaver/vts/VtsHalWeaverTargetTest.cpp b/weaver/vts/VtsHalWeaverTargetTest.cpp
new file mode 100644
index 0000000..9ee6d93
--- /dev/null
+++ b/weaver/vts/VtsHalWeaverTargetTest.cpp
@@ -0,0 +1,425 @@
+/*
+ * Copyright (C) 2020 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 <aidl/Gtest.h>
+#include <aidl/Vintf.h>
+
+#include <aidl/android/hardware/weaver/IWeaver.h>
+#include <android-base/file.h>
+#include <android-base/parseint.h>
+#include <android-base/strings.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <android/hardware/weaver/1.0/IWeaver.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
+
+#include <limits>
+
+using ::aidl::android::hardware::weaver::IWeaver;
+using ::aidl::android::hardware::weaver::WeaverConfig;
+using ::aidl::android::hardware::weaver::WeaverReadResponse;
+using ::aidl::android::hardware::weaver::WeaverReadStatus;
+
+using HidlIWeaver = ::android::hardware::weaver::V1_0::IWeaver;
+using HidlWeaverConfig = ::android::hardware::weaver::V1_0::WeaverConfig;
+using HidlWeaverReadStatus = ::android::hardware::weaver::V1_0::WeaverReadStatus;
+using HidlWeaverReadResponse = ::android::hardware::weaver::V1_0::WeaverReadResponse;
+using HidlWeaverStatus = ::android::hardware::weaver::V1_0::WeaverStatus;
+
+const std::string kSlotMapFile = "/metadata/password_slots/slot_map";
+const std::vector<uint8_t> KEY{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+const std::vector<uint8_t> WRONG_KEY{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+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};
+
+class WeaverAdapter {
+  public:
+    virtual ~WeaverAdapter() {}
+    virtual bool isReady() = 0;
+    virtual ::ndk::ScopedAStatus getConfig(WeaverConfig* _aidl_return) = 0;
+    virtual ::ndk::ScopedAStatus read(int32_t in_slotId, const std::vector<uint8_t>& in_key,
+                                      WeaverReadResponse* _aidl_return) = 0;
+    virtual ::ndk::ScopedAStatus write(int32_t in_slotId, const std::vector<uint8_t>& in_key,
+                                       const std::vector<uint8_t>& in_value) = 0;
+};
+
+class WeaverAidlAdapter : public WeaverAdapter {
+  public:
+    WeaverAidlAdapter(const std::string& param)
+        : aidl_weaver_(IWeaver::fromBinder(
+                  ::ndk::SpAIBinder(AServiceManager_waitForService(param.c_str())))) {}
+    ~WeaverAidlAdapter() {}
+
+    bool isReady() { return aidl_weaver_ != nullptr; }
+
+    ::ndk::ScopedAStatus getConfig(WeaverConfig* _aidl_return) {
+        return aidl_weaver_->getConfig(_aidl_return);
+    }
+
+    ::ndk::ScopedAStatus read(int32_t in_slotId, const std::vector<uint8_t>& in_key,
+                              WeaverReadResponse* _aidl_return) {
+        return aidl_weaver_->read(in_slotId, in_key, _aidl_return);
+    }
+
+    ::ndk::ScopedAStatus write(int32_t in_slotId, const std::vector<uint8_t>& in_key,
+                               const std::vector<uint8_t>& in_value) {
+        return aidl_weaver_->write(in_slotId, in_key, in_value);
+    }
+
+  private:
+    std::shared_ptr<IWeaver> aidl_weaver_;
+};
+
+class WeaverHidlAdapter : public WeaverAdapter {
+  public:
+    WeaverHidlAdapter(const std::string& param) : hidl_weaver_(HidlIWeaver::getService(param)) {}
+    ~WeaverHidlAdapter() {}
+
+    bool isReady() { return hidl_weaver_ != nullptr; }
+
+    ::ndk::ScopedAStatus getConfig(WeaverConfig* _aidl_return) {
+        bool callbackCalled = false;
+        HidlWeaverStatus status;
+        HidlWeaverConfig config;
+        auto ret = hidl_weaver_->getConfig([&](HidlWeaverStatus s, HidlWeaverConfig c) {
+            callbackCalled = true;
+            status = s;
+            config = c;
+        });
+        if (!ret.isOk() || !callbackCalled || status != HidlWeaverStatus::OK) {
+            return ::ndk::ScopedAStatus::fromStatus(STATUS_FAILED_TRANSACTION);
+        }
+        _aidl_return->slots = config.slots;
+        _aidl_return->keySize = config.keySize;
+        _aidl_return->valueSize = config.valueSize;
+        return ::ndk::ScopedAStatus::ok();
+    }
+
+    ::ndk::ScopedAStatus read(int32_t in_slotId, const std::vector<uint8_t>& in_key,
+                              WeaverReadResponse* _aidl_return) {
+        bool callbackCalled = false;
+        HidlWeaverReadStatus status;
+        std::vector<uint8_t> value;
+        uint32_t timeout;
+        auto ret = hidl_weaver_->read(in_slotId, in_key,
+                                      [&](HidlWeaverReadStatus s, HidlWeaverReadResponse r) {
+                                          callbackCalled = true;
+                                          status = s;
+                                          value = r.value;
+                                          timeout = r.timeout;
+                                      });
+        if (!ret.isOk() || !callbackCalled) {
+            return ::ndk::ScopedAStatus::fromStatus(STATUS_FAILED_TRANSACTION);
+        }
+        switch (status) {
+            case HidlWeaverReadStatus::OK:
+                _aidl_return->status = WeaverReadStatus::OK;
+                break;
+            case HidlWeaverReadStatus::FAILED:
+                _aidl_return->status = WeaverReadStatus::FAILED;
+                break;
+            case HidlWeaverReadStatus::INCORRECT_KEY:
+                _aidl_return->status = WeaverReadStatus::INCORRECT_KEY;
+                break;
+            case HidlWeaverReadStatus::THROTTLE:
+                _aidl_return->status = WeaverReadStatus::THROTTLE;
+                break;
+            default:
+                ADD_FAILURE() << "Unknown HIDL read status: " << static_cast<uint32_t>(status);
+                _aidl_return->status = WeaverReadStatus::FAILED;
+                break;
+        }
+        _aidl_return->value = value;
+        _aidl_return->timeout = timeout;
+        return ::ndk::ScopedAStatus::ok();
+    }
+
+    ::ndk::ScopedAStatus write(int32_t in_slotId, const std::vector<uint8_t>& in_key,
+                               const std::vector<uint8_t>& in_value) {
+        auto status = hidl_weaver_->write(in_slotId, in_key, in_value);
+        switch (status) {
+            case HidlWeaverStatus::OK:
+                return ::ndk::ScopedAStatus::ok();
+            case HidlWeaverStatus::FAILED:
+                return ::ndk::ScopedAStatus::fromStatus(STATUS_FAILED_TRANSACTION);
+            default:
+                ADD_FAILURE() << "Unknown HIDL write status: " << status.description();
+                return ::ndk::ScopedAStatus::fromStatus(STATUS_FAILED_TRANSACTION);
+        }
+    }
+
+  private:
+    android::sp<HidlIWeaver> hidl_weaver_;
+};
+
+class WeaverTest : public ::testing::TestWithParam<std::tuple<std::string, std::string>> {
+  protected:
+    void SetUp() override;
+    void TearDown() override {}
+    void FindFreeSlots();
+
+    std::unique_ptr<WeaverAdapter> weaver_;
+    WeaverConfig config_;
+    uint32_t first_free_slot_;
+    uint32_t last_free_slot_;
+};
+
+void WeaverTest::SetUp() {
+    std::string api, instance_name;
+    std::tie(api, instance_name) = GetParam();
+    if (api == "hidl") {
+        weaver_.reset(new WeaverHidlAdapter(instance_name));
+    } else if (api == "aidl") {
+        weaver_.reset(new WeaverAidlAdapter(instance_name));
+    } else {
+        FAIL() << "Bad test parameterization";
+    }
+    ASSERT_TRUE(weaver_->isReady());
+
+    auto ret = weaver_->getConfig(&config_);
+    ASSERT_TRUE(ret.isOk());
+    ASSERT_GT(config_.slots, 0);
+    GTEST_LOG_(INFO) << "WeaverConfig: slots=" << config_.slots << ", keySize=" << config_.keySize
+                     << ", valueSize=" << config_.valueSize;
+
+    FindFreeSlots();
+    GTEST_LOG_(INFO) << "First free slot is " << first_free_slot_ << ", last free slot is "
+                     << last_free_slot_;
+}
+
+void WeaverTest::FindFreeSlots() {
+    // Determine which Weaver slots are in use by the system. These slots can't be used by the test.
+    std::set<uint32_t> used_slots;
+    if (access(kSlotMapFile.c_str(), F_OK) == 0) {
+        std::string contents;
+        ASSERT_TRUE(android::base::ReadFileToString(kSlotMapFile, &contents))
+                << "Failed to read " << kSlotMapFile;
+        for (const auto& line : android::base::Split(contents, "\n")) {
+            auto trimmed_line = android::base::Trim(line);
+            if (trimmed_line[0] == '#' || trimmed_line[0] == '\0') continue;
+            auto slot_and_user = android::base::Split(trimmed_line, "=");
+            uint32_t slot;
+            ASSERT_TRUE(slot_and_user.size() == 2 &&
+                        android::base::ParseUint(slot_and_user[0], &slot))
+                    << "Error parsing " << kSlotMapFile << " at \"" << line << "\"";
+            GTEST_LOG_(INFO) << "Slot " << slot << " is in use by " << slot_and_user[1];
+            ASSERT_LT(slot, config_.slots);
+            used_slots.insert(slot);
+        }
+    }
+    // Starting in Android 14, the system will always use at least one Weaver slot if Weaver is
+    // supported at all.  Make sure we saw at least one.
+    // TODO: uncomment after Android 14 is merged into AOSP
+    // ASSERT_FALSE(used_slots.empty())
+    //<< "Could not determine which Weaver slots are in use by the system";
+
+    // Find the first free slot.
+    int found = 0;
+    for (uint32_t i = 0; i < config_.slots; i++) {
+        if (used_slots.find(i) == used_slots.end()) {
+            first_free_slot_ = i;
+            found++;
+            break;
+        }
+    }
+    // Find the last free slot.
+    for (uint32_t i = config_.slots; i > 0; i--) {
+        if (used_slots.find(i - 1) == used_slots.end()) {
+            last_free_slot_ = i - 1;
+            found++;
+            break;
+        }
+    }
+    ASSERT_EQ(found, 2) << "All Weaver slots are already in use by the system";
+}
+
+/*
+ * Checks config values are suitably large
+ */
+TEST_P(WeaverTest, GetConfig) {
+    EXPECT_GE(config_.slots, 16u);
+    EXPECT_GE(config_.keySize, 16u);
+    EXPECT_GE(config_.valueSize, 16u);
+}
+
+/*
+ * Gets the config twice and checks they are the same
+ */
+TEST_P(WeaverTest, GettingConfigMultipleTimesGivesSameResult) {
+    WeaverConfig config2;
+
+    auto ret = weaver_->getConfig(&config2);
+    ASSERT_TRUE(ret.isOk());
+
+    EXPECT_EQ(config_, config2);
+}
+
+/*
+ * Writes a key and value to the last free slot
+ */
+TEST_P(WeaverTest, WriteToLastSlot) {
+    const auto writeRet = weaver_->write(last_free_slot_, KEY, VALUE);
+    ASSERT_TRUE(writeRet.isOk());
+}
+
+/*
+ * Writes a key and value to a slot
+ * Reads the slot with the same key and receives the value that was previously written
+ */
+TEST_P(WeaverTest, WriteFollowedByReadGivesTheSameValue) {
+    const uint32_t slotId = first_free_slot_;
+    const auto ret = weaver_->write(slotId, KEY, VALUE);
+    ASSERT_TRUE(ret.isOk());
+
+    WeaverReadResponse response;
+    const auto readRet = weaver_->read(slotId, KEY, &response);
+    ASSERT_TRUE(readRet.isOk());
+    EXPECT_EQ(response.value, VALUE);
+    EXPECT_EQ(response.timeout, 0u);
+    EXPECT_EQ(response.status, WeaverReadStatus::OK);
+}
+
+/*
+ * Writes a key and value to a slot
+ * Overwrites the slot with a new key and value
+ * Reads the slot with the new key and receives the new value
+ */
+TEST_P(WeaverTest, OverwritingSlotUpdatesTheValue) {
+    const uint32_t slotId = first_free_slot_;
+    const auto initialWriteRet = weaver_->write(slotId, WRONG_KEY, VALUE);
+    ASSERT_TRUE(initialWriteRet.isOk());
+
+    const auto overwriteRet = weaver_->write(slotId, KEY, OTHER_VALUE);
+    ASSERT_TRUE(overwriteRet.isOk());
+
+    WeaverReadResponse response;
+    const auto readRet = weaver_->read(slotId, KEY, &response);
+    ASSERT_TRUE(readRet.isOk());
+    EXPECT_EQ(response.value, OTHER_VALUE);
+    EXPECT_EQ(response.timeout, 0u);
+    EXPECT_EQ(response.status, WeaverReadStatus::OK);
+}
+
+/*
+ * Writes a key and value to a slot
+ * Reads the slot with a different key so does not receive the value
+ */
+TEST_P(WeaverTest, WriteFollowedByReadWithWrongKeyDoesNotGiveTheValue) {
+    const uint32_t slotId = first_free_slot_;
+    const auto writeRet = weaver_->write(slotId, KEY, VALUE);
+    ASSERT_TRUE(writeRet.isOk());
+
+    WeaverReadResponse response;
+    const auto readRet = weaver_->read(slotId, WRONG_KEY, &response);
+    ASSERT_TRUE(readRet.isOk());
+    EXPECT_TRUE(response.value.empty());
+    EXPECT_EQ(response.status, WeaverReadStatus::INCORRECT_KEY);
+}
+
+/*
+ * Writing to an invalid slot fails
+ */
+TEST_P(WeaverTest, WritingToInvalidSlotFails) {
+    if (config_.slots == std::numeric_limits<uint32_t>::max()) {
+        // If there are no invalid slots then pass
+        return;
+    }
+
+    const auto writeRet = weaver_->write(config_.slots, KEY, VALUE);
+    ASSERT_FALSE(writeRet.isOk());
+}
+
+/*
+ * Reading from an invalid slot fails rather than incorrect key
+ */
+TEST_P(WeaverTest, ReadingFromInvalidSlotFails) {
+    if (config_.slots == std::numeric_limits<uint32_t>::max()) {
+        // If there are no invalid slots then pass
+        return;
+    }
+
+    WeaverReadResponse response;
+    const auto readRet = weaver_->read(config_.slots, KEY, &response);
+    ASSERT_TRUE(readRet.isOk());
+    EXPECT_TRUE(response.value.empty());
+    EXPECT_EQ(response.timeout, 0u);
+    EXPECT_EQ(response.status, WeaverReadStatus::FAILED);
+}
+
+/*
+ * Writing a key that is too large fails
+ */
+TEST_P(WeaverTest, WriteWithTooLargeKeyFails) {
+    std::vector<uint8_t> bigKey(config_.keySize + 1);
+
+    const auto writeRet = weaver_->write(first_free_slot_, bigKey, VALUE);
+    ASSERT_FALSE(writeRet.isOk());
+}
+
+/*
+ * Writing a value that is too large fails
+ */
+TEST_P(WeaverTest, WriteWithTooLargeValueFails) {
+    std::vector<uint8_t> bigValue(config_.valueSize + 1);
+
+    const auto writeRet = weaver_->write(first_free_slot_, KEY, bigValue);
+    ASSERT_FALSE(writeRet.isOk());
+}
+
+/*
+ * Reading with a key that is too large fails
+ */
+TEST_P(WeaverTest, ReadWithTooLargeKeyFails) {
+    std::vector<uint8_t> bigKey(config_.keySize + 1);
+
+    WeaverReadResponse response;
+    const auto readRet = weaver_->read(first_free_slot_, bigKey, &response);
+    ASSERT_TRUE(readRet.isOk());
+    EXPECT_TRUE(response.value.empty());
+    EXPECT_EQ(response.timeout, 0u);
+    EXPECT_EQ(response.status, WeaverReadStatus::FAILED);
+}
+
+// Instantiate the test for each HIDL Weaver service.
+INSTANTIATE_TEST_SUITE_P(
+        PerHidlInstance, WeaverTest,
+        testing::Combine(testing::Values("hidl"),
+                         testing::ValuesIn(android::hardware::getAllHalInstanceNames(
+                                 HidlIWeaver::descriptor))),
+        [](const testing::TestParamInfo<std::tuple<std::string, std::string>>& info) {
+            return android::hardware::PrintInstanceNameToString(
+                    testing::TestParamInfo<std::string>{std::get<1>(info.param), info.index});
+        });
+
+// Instantiate the test for each AIDL Weaver service.
+INSTANTIATE_TEST_SUITE_P(
+        PerAidlInstance, WeaverTest,
+        testing::Combine(testing::Values("aidl"),
+                         testing::ValuesIn(android::getAidlHalInstanceNames(IWeaver::descriptor))),
+        [](const testing::TestParamInfo<std::tuple<std::string, std::string>>& info) {
+            // This name_generator makes the instance name be included in the test case names, e.g.
+            // "PerAidlInstance/WeaverTest#GetConfig/0_android_hardware_weaver_IWeaver_default"
+            // instead of "PerAidlInstance/WeaverTest#GetConfig/0".
+            return android::PrintInstanceNameToString(
+                    testing::TestParamInfo<std::string>{std::get<1>(info.param), info.index});
+        });
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    ABinderProcess_setThreadPoolMaxThreadCount(1);
+    ABinderProcess_startThreadPool();
+    return RUN_ALL_TESTS();
+}