diff --git a/core/soong_config.mk b/core/soong_config.mk
index 09ee938..874cbc3 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -353,6 +353,11 @@
 $(call add_json_str, EnableUffdGc, $(_config_enable_uffd_gc))
 _config_enable_uffd_gc :=
 
+$(call add_json_list, DeviceFrameworkCompatibilityMatrixFile, $(DEVICE_FRAMEWORK_COMPATIBILITY_MATRIX_FILE))
+$(call add_json_list, DeviceProductCompatibilityMatrixFile, $(DEVICE_PRODUCT_COMPATIBILITY_MATRIX_FILE))
+$(call add_json_list, BoardAvbSystemAddHashtreeFooterArgs, $(BOARD_AVB_SYSTEM_ADD_HASHTREE_FOOTER_ARGS))
+$(call add_json_bool, BoardAvbEnable, $(filter true,$(BOARD_AVB_ENABLE)))
+
 $(call json_end)
 
 $(file >$(SOONG_VARIABLES).tmp,$(json_contents))