diff --git a/misc/acrn-config/board_config/misc_cfg_h.py b/misc/acrn-config/board_config/misc_cfg_h.py
index 8ccb62e07..6c87d4f60 100644
--- a/misc/acrn-config/board_config/misc_cfg_h.py
+++ b/misc/acrn-config/board_config/misc_cfg_h.py
@@ -109,13 +109,17 @@ def pci_dev_num_per_vm_gen(config):
     shmem_regions = scenario_cfg_lib.get_shmem_regions(ivshmem_region)
     shmem_num = scenario_cfg_lib.get_shmem_num(shmem_regions)
 
+    vuarts = common.get_vuart_info(common.SCENARIO_INFO_FILE)
+    vuarts_num = scenario_cfg_lib.get_vuart_num(vuarts)
+
     for vm_i,vm_type in common.VM_TYPES.items():
         num = 0
         if "POST_LAUNCHED_VM" == scenario_cfg_lib.VM_DB[vm_type]['load_type']:
             shmem_num_i = 0
+            vuart_num = vuarts_num[vm_i]
             if shmem_enabled == 'y' and vm_i in shmem_num.keys():
                 shmem_num_i = shmem_num[vm_i]
-            num = shmem_num_i
+            num = shmem_num_i + vuart_num
         elif "PRE_LAUNCHED_VM" == scenario_cfg_lib.VM_DB[vm_type]['load_type']:
             shmem_num_i = 0
             if shmem_enabled == 'y' and vm_i in shmem_num.keys():
@@ -124,7 +128,7 @@ def pci_dev_num_per_vm_gen(config):
                 # there is only vhostbridge but no passthrough device
                 # remove the count of vhostbridge, check get_pci_num definition
                 pci_dev_num[vm_i] -= 1
-            num = pci_dev_num[vm_i] + shmem_num_i
+            num = pci_dev_num[vm_i] + shmem_num_i + vuarts_num[vm_i]
         elif "SOS_VM" == scenario_cfg_lib.VM_DB[vm_type]['load_type']:
             continue
         if num > 0:
diff --git a/misc/acrn-config/library/scenario_cfg_lib.py b/misc/acrn-config/library/scenario_cfg_lib.py
index b56da1a84..07f00b6cc 100644
--- a/misc/acrn-config/library/scenario_cfg_lib.py
+++ b/misc/acrn-config/library/scenario_cfg_lib.py
@@ -195,7 +195,7 @@ def get_pci_dev_num_per_vm():
                 # there is only vhostbridge but no passthrough device
                 # remove the count of vhostbridge, check get_pci_num definition
                 pci_dev_num[vm_i] -= 1
-            pci_dev_num_per_vm[vm_i] = pci_dev_num[vm_i] + shmem_num_i+ vuarts_num[vm_i]
+            pci_dev_num_per_vm[vm_i] = pci_dev_num[vm_i] + shmem_num_i + vuarts_num[vm_i]
         elif "SOS_VM" == VM_DB[vm_type]['load_type']:
             shmem_num_i = 0
             if shmem_enabled == 'y' and vm_i in shmem_num.keys():