DM: Add one sample script to launch VxWorks as guest

This patch add one sample script to launch VxWorks as guest.

Tracked-On: #3069
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@intel.com>

devicemodel/samples/nuc/launch_vxworks.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+function launch_vxworks()
+{
+vm_name=vxworks_vm$1
+
+#check if the vm is running or not
+vm_ps=$(pgrep -a -f acrn-dm)
+result=$(echo $vm_ps | grep "${vm_name}")
+if [[ "$result" != "" ]]; then
+  echo "$vm_name is running, can't create twice!"
+  exit
+fi
+
+#for memsize setting
+mem_size=2048M
+
+# Note:
+#      Here we just launch VxWorks as a normal vm without lapic_pt. If you want try it
+#      with lapic_pt, you should add the following options and make sure the front-end virtio-console
+#      driver use polling mode (This feature is not supported by VxWorks offically now and should
+#      implement it by youself).
+#
+#      --virtio_poll 1000000 \
+#      --s 2, virtio-console,@pty:pty_port \
+#
+#      Once the front-end polling mode virtio-console get supported by VxWorks offically, we will
+#      add the lapic_pt option.
+acrn-dm -A -m $mem_size -c $2 -s 0:0,hostbridge -s 1:0,lpc -l com1,stdio \
+  -s 5,virtio-console,@pty:pty_port \
+  -s 3,virtio-blk,./VxWorks.img \
+  --ovmf ./OVMF.fd \
+  $vm_name
+}
+
+# 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 > $i/online
+		# during boot time, cpu hotplug may be disabled by pci_device_probe during a pci module insmod
+		while [ "$online" = "1" ]; do
+			sleep 1
+			echo 0 > $i/online
+			online=`cat $i/online`
+		done
+                echo $idx > /sys/class/vhm/acrn_vhm/offline_cpu
+        fi
+done
+
+launch_vxworks 1 1