acrn-config: refine mount device for virtio-blk

Previous launch config tool doesn't handle the situation that
'virtio-blk' is set with rootfs partition with rootfs image,
in such scenario, VM would be failed to start when launching
This patch refine the mount device while use rootfs partiton and image
from vritio block device.

Tracked-On: #4248
Signed-off-by: Wei Liu <weix.w.liu@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>

misc/acrn-config/library/launch_cfg_lib.py

@@ -56,6 +56,8 @@ PM_CHANNEL_DIC = {
     'vuart1(tty)':'--pm_notify_channel uart --pm_by_vuart tty,/dev/ttyS1',
 }
 
+MOUNT_FLAG_DIC = {}
+
 
 def prepare(check_git):
     """ Check environment """
@@ -617,3 +619,27 @@ def pt_devs_check_audio(audio_map, audio_codec_map):
         if not bdf_audio and bdf_codec:
             key = "uos:id={},passthrough_devices,{}".format(vmid, 'audio_codec')
             ERR_LIST[key] = "Audio codec device should be pass through together with Audio devcie!"
+
+
+def check_block_mount(virtio_blk_dic):
+    blk_dev_list = get_rootdev_info(BOARD_INFO_FILE)
+    for vmid in list(virtio_blk_dic.keys()):
+        mount_flags = []
+        for blk in virtio_blk_dic[vmid]:
+            rootfs_img = ''
+            if not blk:
+                mount_flags.append(False)
+                continue
+
+            if ':' in blk:
+                blk_dev = blk.split(':')[0]
+                rootfs_img = blk.split(':')[1]
+            else:
+                blk_dev = blk
+
+            if blk_dev in blk_dev_list and rootfs_img:
+                mount_flags.append(True)
+            else:
+                mount_flags.append(False)
+
+        MOUNT_FLAG_DIC[vmid] = mount_flags