To build for X220 we need to have the following files in this folder:
* `me.bin` - ME binary that has been stripped and truncated with me_cleaner
* `gbe.bin` - Network card blob from the original firmware
* `ifd.bin` - Flash layout file has been provided, layout.txt is also present for changes

To get the binaries, start with a copy of the original lenovo firmware image.
If you do not have one already, you can read one out from the laptops SPI flash.

```
flashrom --programmer internal:laptop=force_I_want_a_brick -r original.bin
```

Once you have the image, run `ifdtool` to extract the parts.

```
ifdtool -x origin.bin
```

Rename `flashregion_3_gbe.bin` to `gbe.bin`

To truncate and neuter the ME blob (this can be done automatically in coreboot 4.6):

```
me_cleaner -r -t -O me.bin flashregion_2_intel_me.bin"
```

You can now compile the image with:

```
make CONFIG=config/x220-qubes.config
```