[U-Boot] [PATCH v3 5/7] gpt: Support for GPT (GUID Partition Table) restoration

[Stephen Warren <swarren@wwwdotorg.org>]

On 09/13/2012 02:10 AM, Lukasz Majewski wrote:
> The restoration of GPT table (both primary and secondary) is now possible.
> Simple GUID generation is supported.

> diff --git a/include/part.h b/include/part.h

> +int set_gpt_table(block_dev_desc_t *dev_desc,
> +		  gpt_header *gpt_h, gpt_entry *gpt_e);

The API here isn't very generic; it requires the caller to have
formatted the GPT entirely by itself, which means having complete
knowledge of how to lay out a GPT header and partition table entry.
Right now, all that knowledge is contained inside the implementation of
the "gpt" command - what if some other unrelated code wanted to write a
GPT; it'd have to duplicate everything.

I was thinking of a much more generic interface, where each partition is
described using abstract structs, and the creation of the actual on-disk
layout is handling inside the set_gpt_table() function. That would
presumably allow the same abstract structs to be passed to e.g.
set_mbr_partition_table() and a generic "ptable create" command to be
created.