- disk_extension:
    only virtio_blk virtio_scsi
    virt_test_type = qemu
    type = disk_extension
    not_preprocess = yes
    wait_timeout = 60
    drive_werror = stop
    drive_rerror = stop
    tmpfs_folder = "/tmp/xtmpfs"
    loop_device = /dev/loop6
    # Please keep consistent unit
    begin_size = 50M
    max_size = 500M
    increment_size = 100M
    # Equal max_size
    max_size_in_bytes = 524288000
    # Data disk
    loop_device_backend_img_tag = "stg0"
    loop_device_img_tag = "stg1"
    images += " ${loop_device_img_tag}"
    boot_drive_stg0 = no
    image_raw_device_stg0 = yes
    image_name_stg0 = ${tmpfs_folder}/stg0.raw
    image_size_stg0 = ${begin_size}
    # Must be raw format
    image_format_stg0 = raw
    # Loop device
    image_raw_device_stg1 = yes
    remove_image_stg1 = no
    disk_serial = TARGET_DISK0
    blk_extra_params_stg1 += "serial=${disk_serial}"
    image_name_stg1 = ${loop_device}
    image_format_stg1 = qcow2
    image_size_stg1 = ${max_size}
    Linux:
        guest_cmd = "dd if=/dev/urandom of=%s oflag=direct bs=${max_size}"
    Windows:
        guest_cmd = "WIN_UTILS:\coreutils\DummyCMD.exe %s ${max_size_in_bytes} 1"
        cd_format_cd1 = ide
    virtio_blk:
        driver_name = viostor
    virtio_scsi:
        driver_name = vioscsi
    # The test cover virtio_blk and virtio_scsi
    # With aio native and threads meanwhile
    variants:
        - with_virtio_blk:
            drive_format_stg1 = virtio
        - with_virtio_scsi:
            drive_format_stg1 = scsi-hd
    variants:
        - aio_native:
            image_aio_stg1 = native
        - aio_threads:
            image_aio_stg1 = threads