diff --git a/docs/en/docs/StratoVirt/VM_configuration.md b/docs/en/docs/StratoVirt/VM_configuration.md
index d565a4aa1d7023a07b3cc238519f01e09c612ca4..e87ef824a3ce5a60e4513bc5b8a6b32bc149dd1d 100644
--- a/docs/en/docs/StratoVirt/VM_configuration.md
+++ b/docs/en/docs/StratoVirt/VM_configuration.md
@@ -106,7 +106,7 @@ VM disk configuration includes the following configuration items:
 - **if** (optional): driver type. The default value is **none**. The block device is **none**.
 - **bus**: bus to which the device is to be mounted.
 - **addr**: IDs of the slot and function to which the device is to be mounted.
-- **multifunction** (optional): whether to enable PCI multi-function.  
+- **multifunction** (optional): whether to enable PCI multi-function.
 
 #### Disk Configuration Modes
 
@@ -116,14 +116,14 @@ The lightweight VM configuration format is as follows:
 
 ```
 -drive id=drive_id,file=path_on_host[,readonly=off][,direct=off][,throttling.iops-total=200][,if=none]
--device virtio-blk-device,drive=drive_id[,iothread=iothread1][,serial=serial_num]
+-device virtio-blk-device,drive=drive_id,id=blkid[,iothread=iothread1][,serial=serial_num]
 ```
 
 The standard VM configuration format is as follows:
 
 ```
 -drive id=drive_id,file=path_on_host[,readonly=off][,direct=off][,throttling.iops-total=200][,if=none]
--device virtio-blk-pci,drive=drive_id,bus=pcie.0,addr=0x3.0x0[,iothread=iothread1,][serial=serial_num][,multifunction=on]
+-device virtio-blk-pci,drive=drive_id,bus=pcie.0,addr=0x3.0x0,id=blkid[,iothread=iothread1,][serial=serial_num][,multifunction=on]
 ```
 
 The following describes the **throttling.iops-total** and **iothread** configuration items:
@@ -176,6 +176,7 @@ VM NIC configuration includes the following configuration items:
 > Before using the network, run the following commands to configure the host bridge and tap device:
 >
 > ```
+> $ yum install -y bridge-utils iproute net-tools
 > $ brctl addbr qbr0
 > $ ip tuntap add tap0 mode tap
 > $ brctl addif qbr0 tap0
@@ -249,7 +250,7 @@ A serial port is a VM device used to transmit data between hosts and VMs. To use
 Or:
 
 ```
--chardev backend[,path=path,server,nowait] 
+-chardev backend[,path=path,server,nowait]
 ```
 
 ### Console Device Configuration
diff --git "a/docs/zh/docs/StratoVirt/\350\231\232\346\213\237\346\234\272\351\205\215\347\275\256.md" "b/docs/zh/docs/StratoVirt/\350\231\232\346\213\237\346\234\272\351\205\215\347\275\256.md"
index 435fb0f09cd504812336af441af018c3efdb3b3a..40585d620ef2febab8736de7cfbd687af0cdd765 100644
--- "a/docs/zh/docs/StratoVirt/\350\231\232\346\213\237\346\234\272\351\205\215\347\275\256.md"
+++ "b/docs/zh/docs/StratoVirt/\350\231\232\346\213\237\346\234\272\351\205\215\347\275\256.md"
@@ -117,14 +117,14 @@ StratoVirt 能够运行的最小配置为：
 
 ```
 -drive id=drive_id,file=path_on_host[,readonly=off][,direct=off][,throttling.iops-total=200][,if=none]
--device virtio-blk-device,drive=drive_id[,iothread=iothread1][,serial=serial_num]
+-device virtio-blk-device,drive=drive_id,id=blkid[,iothread=iothread1][,serial=serial_num]
 ```
 
 标准虚拟机配置格式为：
 
 ```
 -drive id=drive_id,file=path_on_host[,readonly=off][,direct=off][,throttling.iops-total=200][,if=none]
--device virtio-blk-pci,drive=drive_id,bus=pcie.0,addr=0x3.0x0[,iothread=iothread1,][serial=serial_num][,multifunction=on]
+-device virtio-blk-pci,drive=drive_id,bus=pcie.0,addr=0x3.0x0,id=blkid[,iothread=iothread1,][serial=serial_num][,multifunction=on]
 ```
 
 下面对throttling.iops-total和iothread两个配置项进行详细说明：
@@ -177,6 +177,7 @@ iothread配置细节见[iothread配置](#iothread配置)
 > 使用网络前请先使用如下命令配置好 host 网桥和 tap 设备。
 >
 > ```
+> $ yum install -y bridge-utils iproute net-tools
 > $ brctl addbr qbr0
 > $ ip tuntap add tap0 mode tap
 > $ brctl addif qbr0 tap0
@@ -250,7 +251,7 @@ iothread配置细节见[iothread配置](#iothread配置)
 或者：
 
 ```
--chardev backend[,path=path,server,nowait] 
+-chardev backend[,path=path,server,nowait]
 ```
 
 ### console 设备配置