diff --git a/compatibility_matrices/Android.mk b/compatibility_matrices/Android.mk
new file mode 100644
index 0000000..2a01480
--- /dev/null
+++ b/compatibility_matrices/Android.mk
@@ -0,0 +1,138 @@
+#
+# 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.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+# Install all compatibility_matrix.*.xml to /system/etc/vintf
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := framework_compatibility_matrix.legacy.xml
+LOCAL_MODULE_STEM := compatibility_matrix.legacy.xml
+LOCAL_SRC_FILES := $(LOCAL_MODULE_STEM)
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/vintf
+include $(BUILD_PREBUILT)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := framework_compatibility_matrix.1.xml
+LOCAL_MODULE_STEM := compatibility_matrix.1.xml
+LOCAL_SRC_FILES := $(LOCAL_MODULE_STEM)
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/vintf
+include $(BUILD_PREBUILT)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := framework_compatibility_matrix.2.xml
+LOCAL_MODULE_STEM := compatibility_matrix.2.xml
+LOCAL_SRC_FILES := $(LOCAL_MODULE_STEM)
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/vintf
+include $(BUILD_PREBUILT)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := framework_compatibility_matrix.current.xml
+LOCAL_MODULE_STEM := compatibility_matrix.current.xml
+LOCAL_SRC_FILES := $(LOCAL_MODULE_STEM)
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/vintf
+include $(BUILD_PREBUILT)
+
+# Framework Compatibility Matrix without HALs
+include $(CLEAR_VARS)
+LOCAL_MODULE        := framework_compatibility_matrix.empty.xml
+LOCAL_MODULE_STEM   := compatibility_matrix.empty.xml
+LOCAL_MODULE_CLASS  := ETC
+LOCAL_MODULE_PATH   := $(TARGET_OUT)/etc/vintf
+
+GEN := $(local-generated-sources-dir)/$(LOCAL_MODULE_STEM)
+
+$(GEN): PRIVATE_FLAGS :=
+
+ifeq (true,$(BOARD_AVB_ENABLE))
+$(GEN): $(AVBTOOL)
+# INTERNAL_AVB_SYSTEM_SIGNING_ARGS consists of BOARD_AVB_SYSTEM_KEY_PATH and
+# BOARD_AVB_SYSTEM_ALGORITHM. We should add the dependency of key path, which
+# is a file, here.
+$(GEN): $(BOARD_AVB_SYSTEM_KEY_PATH)
+# Use deferred assignment (=) instead of immediate assignment (:=).
+# Otherwise, cannot get INTERNAL_AVB_SYSTEM_SIGNING_ARGS.
+$(GEN): FRAMEWORK_VBMETA_VERSION = $$("$(AVBTOOL)" add_hashtree_footer \
+                           --print_required_libavb_version \
+                           $(INTERNAL_AVB_SYSTEM_SIGNING_ARGS) \
+                           $(BOARD_AVB_SYSTEM_ADD_HASHTREE_FOOTER_ARGS))
+else
+$(GEN): FRAMEWORK_VBMETA_VERSION := 0.0
+endif
+
+# Specify kernel versions that the current framework supports. These versions,
+# along with kernel configurations, are written to the framework compatibility
+# matrix.
+$(GEN): KERNEL_VERSIONS := 3.18 4.4 4.9
+
+# Specify the location of android-base*.cfg files.
+$(GEN): KERNEL_CONFIG_DATA := kernel/configs
+
+$(GEN): $(foreach version,$(KERNEL_VERSIONS),\
+	$(wildcard $(KERNEL_CONFIG_DATA)/android-$(version)/android-base*.cfg))
+$(GEN): PRIVATE_FLAGS += $(foreach version,$(KERNEL_VERSIONS),\
+	--kernel=$(version):$(call normalize-path-list,\
+		$(wildcard $(KERNEL_CONFIG_DATA)/android-$(version)/android-base*.cfg)))
+
+$(GEN): $(LOCAL_PATH)/compatibility_matrix.empty.xml $(HOST_OUT_EXECUTABLES)/assemble_vintf
+	POLICYVERS=$(POLICYVERS) \
+		BOARD_SEPOLICY_VERS=$(BOARD_SEPOLICY_VERS) \
+		FRAMEWORK_VBMETA_VERSION=$(FRAMEWORK_VBMETA_VERSION) \
+		$(HOST_OUT_EXECUTABLES)/assemble_vintf \
+		-i $< -o $@ $(PRIVATE_FLAGS)
+LOCAL_PREBUILT_MODULE_FILE := $(GEN)
+include $(BUILD_PREBUILT)
+
+# Framework Compatibility Matrix
+include $(CLEAR_VARS)
+LOCAL_MODULE        := framework_compatibility_matrix.xml
+LOCAL_MODULE_STEM   := compatibility_matrix.xml
+LOCAL_MODULE_CLASS  := ETC
+LOCAL_MODULE_PATH   := $(TARGET_OUT)
+
+LOCAL_REQUIRED_MODULES := \
+    framework_compatibility_matrix.legacy.xml \
+    framework_compatibility_matrix.1.xml \
+    framework_compatibility_matrix.2.xml \
+    framework_compatibility_matrix.current.xml \
+    framework_compatibility_matrix.empty.xml
+
+GEN := $(local-generated-sources-dir)/compatibility_matrix.xml
+
+$(GEN): PRIVATE_FLAGS :=
+
+ifdef BUILT_VENDOR_MANIFEST
+$(GEN): $(BUILT_VENDOR_MANIFEST)
+$(GEN): PRIVATE_FLAGS += -c "$(BUILT_VENDOR_MANIFEST)"
+endif
+
+MATRIX_SRC_FILES := $(call module-installed-files,$(LOCAL_REQUIRED_MODULES))
+$(GEN): PRIVATE_MATRIX_SRC_FILES := $(MATRIX_SRC_FILES)
+$(GEN): $(MATRIX_SRC_FILES) $(HOST_OUT_EXECUTABLES)/assemble_vintf
+	PRODUCT_ENFORCE_VINTF_MANIFEST=$(PRODUCT_ENFORCE_VINTF_MANIFEST) \
+		$(HOST_OUT_EXECUTABLES)/assemble_vintf \
+		-i $(call normalize-path-list,$(PRIVATE_MATRIX_SRC_FILES)) \
+		-o $@ $(PRIVATE_FLAGS)
+
+MATRIX_SRC_FILES :=
+
+LOCAL_PREBUILT_MODULE_FILE := $(GEN)
+include $(BUILD_PREBUILT)
+BUILT_SYSTEM_COMPATIBILITY_MATRIX := $(LOCAL_BUILT_MODULE)
diff --git a/compatibility_matrix.1.xml b/compatibility_matrices/compatibility_matrix.1.xml
similarity index 100%
rename from compatibility_matrix.1.xml
rename to compatibility_matrices/compatibility_matrix.1.xml
diff --git a/compatibility_matrix.2.xml b/compatibility_matrices/compatibility_matrix.2.xml
similarity index 100%
rename from compatibility_matrix.2.xml
rename to compatibility_matrices/compatibility_matrix.2.xml
diff --git a/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
similarity index 100%
rename from compatibility_matrix.current.xml
rename to compatibility_matrices/compatibility_matrix.current.xml
diff --git a/compatibility_matrices/compatibility_matrix.empty.xml b/compatibility_matrices/compatibility_matrix.empty.xml
new file mode 100644
index 0000000..216f5f1
--- /dev/null
+++ b/compatibility_matrices/compatibility_matrix.empty.xml
@@ -0,0 +1 @@
+<compatibility-matrix version="1.0" type="framework" />
diff --git a/compatibility_matrix.legacy.xml b/compatibility_matrices/compatibility_matrix.legacy.xml
similarity index 100%
rename from compatibility_matrix.legacy.xml
rename to compatibility_matrices/compatibility_matrix.legacy.xml