Passthrough配置文件分析：嵌入式Linux LA配置

概述：
在嵌入式系统中，Passthrough（直通）配置文件是一种用于配置和管理虚拟机（VM）的文件。本文将分析一个名为"/mnt/vm/images/linux-la.config"的Passthrough配置文件，并提供相应的源代码示例。

Passthrough配置文件示例：

# Passthrough配置文件示例

# 定义虚拟机的名称
vm_name = "Linux_LA_VM"

# 配置虚拟机的资源
vm_memory = 4096
vm_cores = 2

# 配置虚拟机的磁盘
vm_disks = [
    { "device": "sda", "image": "/mnt/vm/images/linux-la.img", "format": "qcow2", "cache": "writeback" },
    { "device": "sdb", "image": "/mnt/vm/images/linux-la-data.img", "format": "qcow2", "cache": "writethrough" }
]

# 配置虚拟机的网络
vm_network = {
    "interface": "eth0",
    "bridge": "br0",
    "mac_address": "52:54:00:12:34:56",
    "ip_address": "192.168.0.100",
    "netmask": "255.255.255.0",
    "gateway": "192.168.0.1"
}

# 配置虚拟机的Passthrough设备
passthrough_devices = [
    { "vendor_id": "10de"