diff --git a/Makefile b/Makefile
index 02b2d38b8..36f345914 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,27 @@
 # global helper variables
 T := $(CURDIR)
 
+# BOARD/SCENARIO/BOARD_FILE/SCENARIO_FILE/KCONFIG_FILE parameters sanity check:
+#
+# Only below usages are VALID: (target = all | hypervisor)
+# 1. make <target>
+# 2. make <target> KCONFIG_FILE=xxx
+# 3. make <target> BOARD=xxx SCENARIO=xxx
+# 4. make <target> BOARD_FILE=xxx SCENARIO_FILE=xxx
+# 5. make <target> KCONFIG_FILE=xxx BOARD_FILE=xxx SCENARIO_FILE=xxx
+#
+# Especially for case 1 that no any parameters are specified:
+#    a. If hypervisor/build/.config file which generated by "make menuconfig" exist,
+#       the .config file will be loaded as KCONFIG_FILE:
+#       i.e. equal: make <target> KCONFIG_FILE=hypervisor/build/.config
+#
+#    b. If hypervisor/build/.config file does not exist,
+#       the default BOARD/SCENARIO will be loaded:
+#       i.e. equal: make <target> BOARD=$(BOARD) SCENARIO=$(SCENARIO)
+#
+# The grep process did not handle corner case when '#' is manually put right after config value as comments,
+# i.e. it will be failed in the case of "CONFIG_XXX=y # some comments here "
+
 ifneq ($(KCONFIG_FILE),)
   ifneq ($(KCONFIG_FILE), $(wildcard $(KCONFIG_FILE)))
     $(error KCONFIG_FILE: $(KCONFIG_FILE) does not exist)
@@ -12,6 +33,50 @@ else
   override KCONFIG_FILE := $(T)/hypervisor/build/.config
 endif
 
+ifneq ($(BOARD)$(SCENARIO),)
+  ifneq ($(BOARD_FILE)$(SCENARIO_FILE),)
+    $(error BOARD/SCENARIO parameter could not coexist with BOARD_FILE/SCENARIO_FILE)
+  endif
+endif
+
+ifneq ($(BOARD_FILE)$(SCENARIO_FILE),)
+  ifneq ($(BOARD_FILE), $(wildcard $(BOARD_FILE)))
+    $(error BOARD_FILE: $(BOARD_FILE) does not exist)
+  endif
+  ifneq ($(SCENARIO_FILE), $(wildcard $(SCENARIO_FILE)))
+    $(error SCENARIO_FILE: $(SCENARIO_FILE) does not exist)
+  endif
+
+  override BOARD_FILE := $(realpath $(BOARD_FILE))
+  override SCENARIO_FILE := $(realpath $(SCENARIO_FILE))
+endif
+
+ifeq ($(KCONFIG_FILE), $(wildcard $(KCONFIG_FILE)))
+  ifneq ($(BOARD)$(SCENARIO),)
+    $(error BOARD/SCENARIO parameter could not coexist with KCONFIG_FILE)
+  endif
+
+  BOARD_IN_KCONFIG := $(shell grep CONFIG_BOARD= $(KCONFIG_FILE) | grep -v '\#' | awk -F '"' '{print $$2}')
+  ifeq ($(BOARD_IN_KCONFIG),)
+    $(error no BOARD info in KCONFIG_FILE: $(KCONFIG_FILE))
+  endif
+
+  SCENARIO_IN_KCONFIG := $(shell grep -E "SDC=y|SDC2=y|INDUSTRY=y|LOGICAL_PARTITION=y|HYBRID=y" \
+           $(KCONFIG_FILE) | grep -v '\#' | awk -F "=" '{print $$1}' | cut -d '_' -f 2- | tr A-Z a-z)
+  ifeq ($(SCENARIO_IN_KCONFIG),)
+    $(error no SCENARIO info in KCONFIG_FILE: $(KCONFIG_FILE))
+  endif
+
+  override BOARD := $(BOARD_IN_KCONFIG)
+  override SCENARIO := $(SCENARIO_IN_KCONFIG)
+
+  RELEASE := $(shell grep CONFIG_RELEASE=y $(KCONFIG_FILE) | grep -v '\#')
+  ifneq ($(RELEASE),)
+    override RELEASE := 1
+  endif
+
+endif
+
 BOARD ?= kbl-nuc-i7
 
 ifneq (,$(filter $(BOARD),apl-mrb))
@@ -35,13 +100,6 @@ BUILD_TAG ?=
 GENED_ACPI_INFO_HEADER = $(T)/hypervisor/arch/x86/configs/$(BOARD)/$(BOARD)_acpi_info.h
 HV_CFG_LOG = $(HV_OUT)/cfg.log
 
-ifneq ($(BOARD_FILE),)
-    override BOARD_FILE := $(shell if [ -f $(BOARD_FILE) ]; then realpath $(BOARD_FILE); fi)
-endif
-ifneq ($(SCENARIO_FILE),)
-    override SCENARIO_FILE := $(shell if [ -f $(SCENARIO_FILE) ]; then realpath $(SCENARIO_FILE); fi)
-endif
-
 export TOOLS_OUT BOARD SCENARIO FIRMWARE RELEASE
 
 .PHONY: all hypervisor devicemodel tools doc
@@ -54,40 +112,8 @@ else ifeq ($(BOARD), kbl-nuc-i7)
   override BOARD := nuc7i7dnb
 endif
 
-#BOARD and SCENARIO definition priority:
-#  If we do menuconfig in advance, the menuconfig will define
-#     BOARD
-#     SCENARIO
-#  else if we have board/scenario file avaiable, BOARD and SCENARIO will be
-#     extracted from files.
-#  else if make comand has BORAD/SCENARIO parameters, BOARD and SCENARIO will
-#     be gotten from parameters
-#  else
-#     default value defined in this make file will be used
-#
-
 include $(T)/hypervisor/scripts/makefile/cfg_update.mk
 
-ifeq ($(KCONFIG_FILE), $(wildcard $(KCONFIG_FILE)))
-  BOARD_IN_KCONFIG := $(shell grep CONFIG_BOARD= $(KCONFIG_FILE) | awk -F '"' '{print $$2}')
-  SCENARIO_IN_KCONFIG := $(shell grep -E "SDC=y|SDC2=y|INDUSTRY=y|LOGICAL_PARTITION=y|HYBRID=y" \
-           $(KCONFIG_FILE) | awk -F "=" '{print $$1}' | cut -d '_' -f 2- | tr A-Z a-z)
-
-  RELEASE := $(shell grep CONFIG_RELEASE=y $(KCONFIG_FILE))
-  ifneq ($(RELEASE),)
-    override RELEASE := 1
-  endif
-
-  ifneq ($(BOARD_IN_KCONFIG),$(BOARD))
-    override BOARD := $(BOARD_IN_KCONFIG)
-  endif
-
-  ifneq ($(SCENARIO_IN_KCONFIG),$(SCENARIO))
-    override SCENARIO := $(SCENARIO_IN_KCONFIG)
-  endif
-
-endif
-
 #help functions to build acrn and install acrn/acrn symbols
 define build_acrn
 	$(MAKE) -C $(T)/hypervisor HV_OBJDIR=$(HV_OUT)-$(1)/$(2) BOARD=$(2) FIRMWARE=$(1) SCENARIO=$(4) RELEASE=$(RELEASE) clean
diff --git a/hypervisor/Makefile b/hypervisor/Makefile
index 792968acf..72baf4df7 100644
--- a/hypervisor/Makefile
+++ b/hypervisor/Makefile
@@ -1,5 +1,5 @@
 #
-# ACRN Hypervisor
+# acrn-hypervisor/hypervisor/Makefile
 #
 
 include ../VERSION
@@ -50,17 +50,30 @@ include scripts/makefile/deps.mk
 
 include scripts/makefile/kconfig.mk
 
-#initialize scenarios name
+#initialize BOARD if it is not specified
+ifeq ($(BOARD),)
+    override BOARD := $(CONFIG_BOARD)
+endif
+
 ifeq ($(CONFIG_SDC),y)
-SCENARIO_NAME := sdc
+  KCONFIG_SCENARIO := sdc
 else ifeq ($(CONFIG_SDC2),y)
-SCENARIO_NAME := sdc2
+  KCONFIG_SCENARIO := sdc2
 else ifeq ($(CONFIG_LOGICAL_PARTITION),y)
-SCENARIO_NAME := logical_partition
+  KCONFIG_SCENARIO := logical_partition
 else ifeq ($(CONFIG_INDUSTRY),y)
-SCENARIO_NAME := industry
+  KCONFIG_SCENARIO := industry
 else ifeq ($(CONFIG_HYBRID),y)
-SCENARIO_NAME := hybrid
+  KCONFIG_SCENARIO := hybrid
+endif
+
+#initialize SCENARIO if it is not specified
+ifeq ($(SCENARIO),)
+  ifeq ($(KCONFIG_SCENARIO),)
+    override SCENARIO := sdc
+  else
+    override SCENARIO := $(KCONFIG_SCENARIO)
+  endif
 endif
 
 LD_IN_TOOL = scripts/genld.sh
@@ -153,8 +166,8 @@ INCLUDE_PATH += include/hw
 INCLUDE_PATH += boot/include
 INCLUDE_PATH += boot/include/guest
 INCLUDE_PATH += $(HV_OBJDIR)/include
-INCLUDE_PATH += arch/x86/configs/$(CONFIG_BOARD)
-INCLUDE_PATH += scenarios/$(SCENARIO_NAME)
+INCLUDE_PATH += arch/x86/configs/$(BOARD)
+INCLUDE_PATH += scenarios/$(SCENARIO)
 
 CC ?= gcc
 AS ?= as
@@ -240,10 +253,10 @@ HW_C_SRCS += common/sched_bvt.c
 endif
 HW_C_SRCS += hw/pci.c
 HW_C_SRCS += arch/x86/configs/vm_config.c
-HW_C_SRCS += arch/x86/configs/$(CONFIG_BOARD)/board.c
-HW_C_SRCS += scenarios/$(SCENARIO_NAME)/vm_configurations.c
-ifneq (,$(wildcard scenarios/$(SCENARIO_NAME)/pci_dev.c))
-HW_C_SRCS += scenarios/$(SCENARIO_NAME)/pci_dev.c
+HW_C_SRCS += arch/x86/configs/$(BOARD)/board.c
+HW_C_SRCS += scenarios/$(SCENARIO)/vm_configurations.c
+ifneq (,$(wildcard scenarios/$(SCENARIO)/pci_dev.c))
+HW_C_SRCS += scenarios/$(SCENARIO)/pci_dev.c
 endif
 HW_C_SRCS += boot/acpi_base.c
 HW_C_SRCS += boot/cmdline.c
@@ -357,8 +370,8 @@ VERSION := $(HV_OBJDIR)/include/version.h
 
 # Create platform_acpi_info.h
 TEMPLATE_ACPI_INFO_HEADER := arch/x86/configs/platform_acpi_info.h
-BOARDTEMPLATE_ACPI_INFO_HEADER := arch/x86/configs/$(CONFIG_BOARD)/platform_acpi_info.h
-SOURCE_ACPI_INFO_HEADER := arch/x86/configs/$(CONFIG_BOARD)/$(CONFIG_BOARD)_acpi_info.h
+BOARDTEMPLATE_ACPI_INFO_HEADER := arch/x86/configs/$(BOARD)/platform_acpi_info.h
+SOURCE_ACPI_INFO_HEADER := arch/x86/configs/$(BOARD)/$(BOARD)_acpi_info.h
 TARGET_ACPI_INFO_HEADER := $(HV_OBJDIR)/include/platform_acpi_info.h
 
 $(TARGET_ACPI_INFO_HEADER): $(HV_OBJDIR)/$(HV_CONFIG)
@@ -393,11 +406,11 @@ endif
 all: pre_build $(HV_OBJDIR)/$(HV_FILE).32.out $(HV_OBJDIR)/$(HV_FILE).bin
 
 install: $(HV_OBJDIR)/$(HV_FILE).32.out
-	install -D $(HV_OBJDIR)/$(HV_FILE).32.out $(DESTDIR)/usr/lib/acrn/$(HV_FILE).$(BOARD).$(FIRMWARE).$(SCENARIO_NAME).32.out
+	install -D $(HV_OBJDIR)/$(HV_FILE).32.out $(DESTDIR)/usr/lib/acrn/$(HV_FILE).$(BOARD).$(FIRMWARE).$(SCENARIO).32.out
 
 install-debug: $(HV_OBJDIR)/$(HV_FILE).map $(HV_OBJDIR)/$(HV_FILE).out
-	install -D $(HV_OBJDIR)/$(HV_FILE).out $(DESTDIR)/usr/lib/acrn/$(HV_FILE).$(BOARD).$(FIRMWARE).$(SCENARIO_NAME).out
-	install -D $(HV_OBJDIR)/$(HV_FILE).map $(DESTDIR)/usr/lib/acrn/$(HV_FILE).$(BOARD).$(FIRMWARE).$(SCENARIO_NAME).map
+	install -D $(HV_OBJDIR)/$(HV_FILE).out $(DESTDIR)/usr/lib/acrn/$(HV_FILE).$(BOARD).$(FIRMWARE).$(SCENARIO).out
+	install -D $(HV_OBJDIR)/$(HV_FILE).map $(DESTDIR)/usr/lib/acrn/$(HV_FILE).$(BOARD).$(FIRMWARE).$(SCENARIO).map
 
 .PHONY: pre_build
 pre_build: $(PRE_BUILD_OBJS)
@@ -485,10 +498,7 @@ distclean:
 
 PHONY: (VERSION)
 $(VERSION):
-	@echo "SCENARIO <$(SCENARIO_NAME)> for BOARD <$(BOARD)> is specified."
-	@if [ "$(CONFIG_XML_ENABLED)" = "true" ] && [ "$(SCENARIO_NAME)" != "$(SCENARIO_IN_XML)" ]; then \
-		echo "SCENARIO in XML <$(SCENARIO_IN_XML)> does not match SCENARIO in Kconfig <$(SCENARIO_NAME)> !" ; exit 1; \
-	fi
+	@echo "SCENARIO <$(SCENARIO)> for BOARD <$(BOARD)> is specified."
 	touch $(VERSION)
 	@COMMIT=`git rev-parse --verify --short HEAD 2>/dev/null`;\
 	DIRTY=`git diff-index --name-only HEAD`;\
diff --git a/hypervisor/scripts/makefile/cfg_update.mk b/hypervisor/scripts/makefile/cfg_update.mk
index 580c0098c..6f03501b3 100644
--- a/hypervisor/scripts/makefile/cfg_update.mk
+++ b/hypervisor/scripts/makefile/cfg_update.mk
@@ -12,18 +12,27 @@ ifneq ($$(BOARD_IN_XML),)
     endif
 endif
 
-ifeq ($$(CONFIG_XML_ENABLED),true)
-    override BOARD := $$(BOARD_IN_XML)
-    override SCENARIO := $$(SCENARIO_IN_XML)
-endif
-
-
 endef
 
-ifeq ($(CONFIG_XML_ENALBED),)
+ifeq ($(CONFIG_XML_ENABLED),)
     $(eval $(call check_xml_enabled,$(BOARD_FILE),$(SCENARIO_FILE)))
 endif
 
+ifeq ($(CONFIG_XML_ENABLED),true)
+    ifneq ($(BOARD_IN_KCONFIG),)
+        ifneq ($(BOARD_IN_XML),$(BOARD_IN_KCONFIG))
+            $(error BOARD $(BOARD_IN_XML) in $(BOARD_FILE) does not match BOARD $(BOARD_IN_KCONFIG) in $(KCONFIG_FILE))
+        endif
+    endif
+    ifneq ($(SCENARIO_IN_KCONFIG),)
+        ifneq ($(SCENARIO_IN_XML),$(SCENARIO_IN_KCONFIG))
+            $(error SCENARIO $(SCENARIO_IN_XML) in $(SCENARIO_FILE) does not match SCENARIO $(SCENARIO_IN_KCONFIG) in $(KCONFIG_FILE))
+        endif
+    endif
+    override BOARD := $(BOARD_IN_XML)
+    override SCENARIO := $(SCENARIO_IN_XML)
+endif
+
 update_config:
 ifeq ($(CONFIG_XML_ENABLED),true)
 	@if [ ! -f $(UPDATE_RESULT) ]; then \