dm: add example script to launch vm for realtime scenarios

This example script launch a VM with lapic passthrough for realtime scenarios.

Tracked-On: #2351
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>

devicemodel/samples/nuc/launch_hard_rt_vm.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+# This is an example of launch script for KBL NUC7i7DNH, may need to revise for other platform.
+
+function launch_hard_rt_vm()
+{
+#for memsize setting
+mem_size=1024M
+
+modprobe pci_stub
+# Ethernet pass-through
+#echo "8086 156f" > /sys/bus/pci/drivers/pci-stub/new_id
+#echo "0000:00:1f.6" > /sys/bus/pci/devices/0000:00:1f.6/driver/unbind
+#echo "0000:00:1f.6" > /sys/bus/pci/drivers/pci-stub/bind
+
+# SATA pass-through
+echo "8086 9d03" > /sys/bus/pci/drivers/pci-stub/new_id
+echo "0000:00:17.0" > /sys/bus/pci/devices/0000:00:17.0/driver/unbind
+echo "0000:00:17.0" > /sys/bus/pci/drivers/pci-stub/bind
+
+/usr/bin/acrn-dm -m $mem_size -c $1 \
+  -k /root/rt_uos_kernel \
+   --lapic_pt \
+   --virtio_poll 1000000 \
+   -s 2,passthru,0/17/0 \
+   -s 3,virtio-console,@stdio:stdio_port \
+  -B "root=/dev/sda3 rw rootwait maxcpus=$1 nohpet console=hvc0 \
+  no_timer_check ignore_loglevel log_buf_len=16M \
+  consoleblank=0 tsc=reliable x2apic_phys" hard_rtvm
+}
+
+# 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
+
+launch_hard_rt_vm 1