diff --git a/core/Makefile b/core/Makefile
index 0a99376..5d44954 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1690,6 +1690,26 @@
 endif
 
 # -----------------------------------------------------------------
+# dtbo image
+ifdef BOARD_PREBUILT_DTBOIMAGE
+INSTALLED_DTBOIMAGE_TARGET := $(PRODUCT_OUT)/dtbo.img
+
+ifeq ($(BOARD_AVB_ENABLE),true)
+$(INSTALLED_DTBOIMAGE_TARGET): $(BOARD_PREBUILT_DTBOIMAGE) $(AVBTOOL)
+	cp $(BOARD_PREBUILT_DTBOIMAGE) $@
+	$(AVBTOOL) add_hash_footer \
+		--image $@ \
+		--partition_size $(BOARD_DTBOIMG_PARTITION_SIZE) \
+		--partition_name dtbo $(INTERNAL_AVB_SIGNING_ARGS) \
+		$(BOARD_AVB_DTBO_ADD_HASH_FOOTER_ARGS)
+else
+$(INSTALLED_DTBOIMAGE_TARGET): $(BOARD_PREBUILT_DTBOIMAGE)
+	cp $(BOARD_PREBUILT_DTBOIMAGE) $@
+endif
+
+endif
+
+# -----------------------------------------------------------------
 # vbmeta image
 ifeq ($(BOARD_AVB_ENABLE),true)
 
@@ -1704,6 +1724,11 @@
     --include_descriptors_from_image $(INSTALLED_VENDORIMAGE_TARGET)
 endif
 
+ifdef INSTALLED_DTBOIMAGE_TARGET
+INTERNAL_AVB_MAKE_VBMETA_IMAGE_ARGS += \
+		--include_descriptors_from_image $(INSTALLED_DTBOIMAGE_TARGET)
+endif
+
 ifeq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
 INTERNAL_AVB_MAKE_VBMETA_IMAGE_ARGS += --setup_rootfs_from_kernel $(BUILT_SYSTEMIMAGE)
 endif
@@ -1740,7 +1765,7 @@
 endef
 
 INSTALLED_VBMETAIMAGE_TARGET := $(BUILT_VBMETAIMAGE_TARGET)
-$(INSTALLED_VBMETAIMAGE_TARGET): $(AVBTOOL) $(INSTALLED_BOOTIMAGE_TARGET) $(INSTALLED_SYSTEMIMAGE) $(INSTALLED_VENDORIMAGE_TARGET)
+$(INSTALLED_VBMETAIMAGE_TARGET): $(AVBTOOL) $(INSTALLED_BOOTIMAGE_TARGET) $(INSTALLED_SYSTEMIMAGE) $(INSTALLED_VENDORIMAGE_TARGET) $(INSTALLED_DTBOIMAGE_TARGET)
 	$(build-vbmetaimage-target)
 
 .PHONY: vbmetaimage-nodeps
@@ -1980,6 +2005,7 @@
 		$(INSTALLED_USERDATAIMAGE_TARGET) \
 		$(INSTALLED_CACHEIMAGE_TARGET) \
 		$(INSTALLED_VENDORIMAGE_TARGET) \
+		$(INSTALLED_DTBOIMAGE_TARGET) \
 		$(INTERNAL_SYSTEMOTHERIMAGE_FILES) \
 		$(INSTALLED_ANDROID_INFO_TXT_TARGET) \
 		$(INSTALLED_KERNEL_TARGET) \