From 646cc8c4b21bd03fab3175fc9bf8bd37db1dd160 Mon Sep 17 00:00:00 2001
From: "yuhong.tao@intel.com" <yuhong.tao@intel.com>
Date: Tue, 14 Aug 2018 23:04:15 +0800
Subject: [PATCH] DM: VMcfg: Kconfig & Makefile for VM Configuration

VMcfg use Kconfig mechanism to generate a header file
devicemodel/include/vmcfg_config.h, which contains many macro symbols
for conditionally compiling. This feature is disabled by default, to
enable it, You can switch to devicemodel/vmcfg/ and run 'make' with
these options:

'make menuconfig'
run 'make menuconfig' at ./devicemodel/vmcfg/, and configure manually.
When you finished, save your changes to ./devicemode/vmcfg/.config

'make oldconfig'
Overwrite ./devicemodel/vmcfg/.config with your config file, then run
'make oldconfig' at ./devicemodel/vmcfg

'make *_defconfig'
E.g, there is ./devicemodel/vmcfg/config/mrb_defconfig, you can run
'make mrb_defconfig' at ./devicemodel/vmcfg/

Tracked-On: #1528
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
---
 devicemodel/Makefile                         |  6 +++++-
 devicemodel/vmcfg/Kconfig                    |  5 +++++
 devicemodel/vmcfg/Makefile                   |  3 +++
 devicemodel/vmcfg/scripts/kconfig/kconfig.mk | 20 ++++++++++++++++++++
 4 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 devicemodel/vmcfg/Kconfig
 create mode 100644 devicemodel/vmcfg/Makefile
 create mode 100644 devicemodel/vmcfg/scripts/kconfig/kconfig.mk

diff --git a/devicemodel/Makefile b/devicemodel/Makefile
index 9aa229e58..f955ab292 100644
--- a/devicemodel/Makefile
+++ b/devicemodel/Makefile
@@ -136,6 +136,7 @@ SRCS += arch/x86/pm.c
 OBJS := $(patsubst %.c,$(DM_OBJDIR)/%.o,$(SRCS))
 
 HEADERS := $(shell find $(BASEDIR) -name '*.h')
+HEADERS += $(BASEDIR)/include/vmcfg_config.h
 DISTCLEAN_OBJS := $(shell find $(BASEDIR) -name '*.o')
 
 PROGRAM := acrn-dm
@@ -145,9 +146,12 @@ SAMPLES_MRB := $(wildcard samples/apl-mrb/*)
 
 BIOS_BIN := $(wildcard bios/*)
 
-all: include/version.h $(PROGRAM)
+all: include/version.h vmcfg_header $(PROGRAM)
 	@echo -n ""
 
+vmcfg_header:
+	make -C $(BASEDIR)/vmcfg $(BASEDIR)/include/vmcfg_config.h BASEDIR=$(BASEDIR)
+
 $(PROGRAM): $(OBJS)
 	$(CC) -o $(DM_OBJDIR)/$@ $(CFLAGS) $(LDFLAGS) $^ $(LIBS)
 
diff --git a/devicemodel/vmcfg/Kconfig b/devicemodel/vmcfg/Kconfig
new file mode 100644
index 000000000..c18dbce14
--- /dev/null
+++ b/devicemodel/vmcfg/Kconfig
@@ -0,0 +1,5 @@
+mainmenu "VM Configuration"
+
+config VM_CFG
+	bool "Enable build-in VM configuration"
+	default n
diff --git a/devicemodel/vmcfg/Makefile b/devicemodel/vmcfg/Makefile
new file mode 100644
index 000000000..097f9fa69
--- /dev/null
+++ b/devicemodel/vmcfg/Makefile
@@ -0,0 +1,3 @@
+BASEDIR ?= ..
+
+include $(BASEDIR)/vmcfg/scripts/kconfig/kconfig.mk
diff --git a/devicemodel/vmcfg/scripts/kconfig/kconfig.mk b/devicemodel/vmcfg/scripts/kconfig/kconfig.mk
new file mode 100644
index 000000000..9a3f6b789
--- /dev/null
+++ b/devicemodel/vmcfg/scripts/kconfig/kconfig.mk
@@ -0,0 +1,20 @@
+$(eval $(call check_dep_exec,menuconfig,MENUCONFIG_DEPS))
+
+export KCONFIG_CONFIG := $(BASEDIR)/vmcfg/.config
+
+.PHONY: oldconfig
+oldconfig:
+	@python3 $(BASEDIR)/../scripts/kconfig/silentoldconfig.py Kconfig  $(KCONFIG_CONFIG)
+
+%_defconfig:
+	@python3 $(BASEDIR)/../scripts/kconfig/defconfig.py Kconfig  $(BASEDIR)/vmcfg/config/$@ $(KCONFIG_CONFIG)
+
+$(KCONFIG_CONFIG): oldconfig
+
+$(BASEDIR)/include/vmcfg_config.h: $(KCONFIG_CONFIG)
+	echo @mkdir -p $(dir $@)
+	@mkdir -p $(dir $@)
+	@python3 $(BASEDIR)/../scripts/kconfig/generate_header.py Kconfig $< $@
+
+menuconfig: $(MENUCONFIG_DEPS) $(HV_OBJDIR)/$(HV_CONFIG)
+	@python3 $(shell which menuconfig) Kconfig