Makefile: move .mk file to hv scripts folder

The *.mk files under misc/acrn-config/library are all rules for hypervisor
makefiles only, so move these files to hypervisor/scripts/makefile/ folder.

The folder of acrn-config/library/ will be used to store python script lib only.

Tracked-On: #3779

Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Terry Zou <terry.zou@intel.com>

hypervisor/scripts/makefile/kconfig.mk

@@ -0,0 +1,104 @@
+# usage: override_config <symbol> <default>
+#
+# Given a configuration symbol (without the CONFIG_ prefix), this macro
+# overrides its value as follows.
+#    1. If a value is specified from command line, that value is used.
+#    2. If neither config.mk nor the command line specifies a value, the given
+#       default is used.
+define override_config =
+ifdef $(1)
+CONFIG_$(1) := $($(1))
+else ifndef CONFIG_$(1)
+CONFIG_$(1) := $(2)
+endif
+endef
+
+HV_CONFIG := .config
+HV_DEFCONFIG := defconfig
+HV_CONFIG_H := include/config.h
+HV_CONFIG_MK := include/config.mk
+
+KCONFIG_DIR := $(BASEDIR)/../misc/acrn-config/kconfig
+
+# Backward-compatibility for RELEASE=(0|1)
+ifdef RELEASE
+ifeq ($(RELEASE),1)
+override RELEASE := y
+else
+override RELEASE := n
+endif
+endif
+
+-include $(HV_OBJDIR)/$(HV_CONFIG_MK)
+ifeq ($(shell [ $(HV_OBJDIR)/$(HV_CONFIG) -nt $(HV_OBJDIR)/$(HV_CONFIG_MK) ] && echo 1),1)
+# config.mk may be outdated if .config has been overwritten. To update config.mk
+# in such cases, we include .config again to get the new configurations. This
+# only happens when GNU make checks the prerequisites.
+-include $(HV_OBJDIR)/$(HV_CONFIG)
+endif
+
+$(eval $(call override_config,BOARD,apl-mrb))
+$(eval $(call override_config,RELEASE,n))
+
+ifdef BOARD
+TARGET_BOARD=$(BOARD)
+else
+TARGET_BOARD=$(CONFIG_BOARD)
+endif
+
+$(eval $(call check_dep_exec,python3,KCONFIG_DEPS))
+$(eval $(call check_dep_py3lib,kconfiglib,KCONFIG_DEPS))
+
+# This target invoke silentoldconfig to generate or update a .config. Useful as
+# a prerequisite of other targets depending on .config.
+#
+# A dummy command is necessary to trigger the remaking of config.mk right after
+# oldconfig changes HV_CONFIG in the same execution of make.
+$(HV_OBJDIR)/$(HV_CONFIG): update_config oldconfig
+	@true
+
+# Note: This target must not depend on a phony target (e.g. oldconfig) because
+# it'll trigger endless re-execution of make.
+$(HV_OBJDIR)/$(HV_CONFIG_MK): $(HV_OBJDIR)/$(HV_CONFIG)
+	@mkdir -p $(dir $@)
+	@sed 's/="\(.*\)"$$/=\1/g' $(HV_OBJDIR)/$(HV_CONFIG) > $@
+
+$(HV_OBJDIR)/$(HV_CONFIG_H): $(HV_OBJDIR)/$(HV_CONFIG)
+	@mkdir -p $(dir $@)
+	@python3 $(KCONFIG_DIR)/generate_header.py Kconfig $< $@
+
+# This target forcefully generate a .config based on a given default
+# one. Overwrite the current .config if it exists.
+.PHONY: defconfig
+defconfig: $(KCONFIG_DEPS)
+	@mkdir -p $(HV_OBJDIR)
+	@BOARD=$(TARGET_BOARD) \
+	 python3 $(KCONFIG_DIR)/defconfig.py Kconfig \
+		$(HV_OBJDIR)/$(HV_CONFIG)
+
+# Use silentoldconfig to forcefully update the current .config, or generate a
+# new one if no previous .config exists. This target can be used as a
+# prerequisite of all the others to make sure that the .config is consistent
+# even it has been modified manually before.
+.PHONY: oldconfig
+oldconfig: $(KCONFIG_DEPS)
+	@mkdir -p $(HV_OBJDIR)
+	@BOARD=$(TARGET_BOARD) \
+	 python3 $(KCONFIG_DIR)/silentoldconfig.py Kconfig \
+		$(HV_OBJDIR)/$(HV_CONFIG) \
+		RELEASE=$(RELEASE)
+
+# Minimize the current .config. This target can be used to generate a defconfig
+# for future use.
+.PHONY: savedefconfig
+savedefconfig: $(HV_OBJDIR)/$(HV_CONFIG)
+	@python3 $(KCONFIG_DIR)/savedefconfig.py Kconfig \
+		$(HV_OBJDIR)/$(HV_CONFIG) \
+		$(HV_OBJDIR)/$(HV_DEFCONFIG)
+
+$(eval $(call check_dep_exec,menuconfig,MENUCONFIG_DEPS))
+export KCONFIG_CONFIG := $(HV_OBJDIR)/$(HV_CONFIG)
+menuconfig: $(MENUCONFIG_DEPS) $(HV_OBJDIR)/$(HV_CONFIG)
+	@python3 $(shell which menuconfig) Kconfig
+
+CFLAGS += -include $(HV_OBJDIR)/$(HV_CONFIG_H)