This is the hash structure

    'image' =>
    {
        'linux_axp_lpae' =>
        {
            # Mandatory
            image_name => 'uImage-axp-lpae',
            code_ref => 'linux_3.2.40_13q3_uni',
            linux_image => 
            {
                compiler  => 'v7_le_sfp_latest',
                defconfig => 'armada_xp_v7smp_defconfig',
                modules   => '1',
                config    =>
                {
                    'CONFIG_ARM_LPAE' => {value => 'y'},
                    'CONFIG_SQUASHFS' => {value => 'y'}
                },
            },
            'post_script' => ['cesa/openswan/ipsec_build.sh']
        },
}
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and this is the xml i get

  <image image_name="uImage-axp-lpae"
         code_ref="linux_3.2.40_13q3_uni">
    <linux_image compiler="v7_le_sfp_latest"
                 defconfig="armada_xp_v7smp_defconfig"
                 modules="1">
      <config image="CONFIG_ARM_LPAE"
              value="y" />
      <config image="CONFIG_SQUASHFS"
              value="y" />
    </linux_image>
    <post_script>cesa/openswan/ipsec_build.sh</post_script>
  </image>
[download]

as you can see "code_ref" becomes a attribute but i need it to be an element