DM: VMcfg: mrb-env-setup.sh

Script that setup envriment on MRB platform, for UOS with build-in
configuration
For example, you need to run  mrb-env-setup.sh once, to
prepare images, networks and pci-stubs, etc,.

Tracked-On: #1528
Acked-by: Yin Fengwei <fengwei.yin@intel.com>
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>

devicemodel/Makefile

@@ -202,7 +202,7 @@ $(DM_OBJDIR)/%.o: %.c $(HEADERS)
 	[ ! -e $@ ] && mkdir -p $(dir $@); \
 	$(CC) $(CFLAGS) -c $< -o $@
 
-install: $(DM_OBJDIR)/$(PROGRAM) install-samples-nuc install-samples-mrb install-bios
+install: $(DM_OBJDIR)/$(PROGRAM) install-samples-nuc install-samples-mrb install-bios install-vmcfg
 	install -D --mode=0755 $(DM_OBJDIR)/$(PROGRAM) $(DESTDIR)/usr/bin/$(PROGRAM)
 
 install-samples-nuc: $(SAMPLES_NUC)
@@ -216,3 +216,6 @@ install-samples-mrb: $(SAMPLES_MRB)
 install-bios: $(BIOS_BIN)
 	install -d $(DESTDIR)/usr/share/acrn/bios
 	install -D --mode=0664 -t $(DESTDIR)/usr/share/acrn/bios $^
+
+install-vmcfg:
+	make -C $(BASEDIR)/vmcfg install DESTDIR=$(DESTDIR) BASEDIR=$(BASEDIR)

devicemodel/vmcfg/Makefile

@@ -1,3 +1,9 @@
 BASEDIR ?= ..
 
 include $(BASEDIR)/vmcfg/scripts/kconfig/kconfig.mk
+
+all:
+
+install:
+	install -d $(DESTDIR)/usr/share/acrn/samples/apl-mrb
+	install -t $(DESTDIR)/usr/share/acrn/samples/apl-mrb $(BASEDIR)/vmcfg/apl-mrb/mrb-env-setup.sh

devicemodel/vmcfg/apl-mrb/mrb-env-setup.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+if [ ! -b "/dev/mmcblk1p3" ]; then
+  echo "no /dev/mmcblk1p3 data partition, exit"
+  exit
+fi
+
+mkdir -p /data
+mount /dev/mmcblk1p3 /data
+
+if [ ! -f "/data/android/android.img" ]; then
+  echo "no /data/android/android.img, exit"
+  exit
+fi
+
+# create a unique tap device for each VM
+tap=tap_AaaG
+tap_exist=$(ip a | grep acrn_"$tap" | awk '{print $1}')
+if [ "$tap_exist"x != "x" ]; then
+  echo "tap device existed, reuse acrn_$tap"
+else
+  ip tuntap add dev acrn_$tap mode tap
+fi
+
+# if acrn-br0 exists, add VM's unique tap device under it
+br_exist=$(ip a | grep acrn-br0 | awk '{print $1}')
+if [ "$br_exist"x != "x" -a "$tap_exist"x = "x" ]; then
+  echo "acrn-br0 bridge aleady exists, adding new tap device to it..."
+  ip link set acrn_"$tap" master acrn-br0
+  ip link set dev acrn_"$tap" down
+  ip link set dev acrn_"$tap" up
+fi
+
+modprobe pci_stub
+
+# offline SOS CPUs except BSP before launch UOS
+for i in `ls -d /sys/devices/system/cpu/cpu[1-99]`; do
+	online=`cat $i/online`
+	idx=`echo $i | tr -cd "[1-99]"`
+	echo cpu$idx online=$online
+	if [ "$online" = "1" ]; then
+		echo 0 > $i/online
+		echo $idx > /sys/class/vhm/acrn_vhm/offline_cpu
+	fi
+done