{
  "common": {
    "host_package": "/tmp/linux-x86"
  },
  "instances": [
    {
      "disk": {
        "default_build": "/tmp/vsoc_x86_64"
      },
      "boot": {
        "extra_bootconfig_args": "androidboot.W=X androidboot.Y=Z"
      }
    }
  ]
}