[PATCH] Documentation: state: recommend a partition type GUID for state GPT partitions

[PATCH] Documentation: state: recommend a partition type GUID for state GPT partitions

[Bastian Krause]

The partition type GUID was generated randomly. Having a defined GUID
should reduce the risk of collisions in the future.

A dedicated GUID could also allow us to implement a fallback in case no
state backend property is defined. This could then look for a GPT
partition with this partition type GUID and use that as the backend.
dt-utils could do the same in userspace. This would be similar to [1].

[1] https://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/

Signed-off-by: Bastian Krause <bst@pengutronix.de>
---
 Documentation/user/state.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/user/state.rst b/Documentation/user/state.rst
index 54aa396257..a0e27d4fe8 100644
--- a/Documentation/user/state.rst
+++ b/Documentation/user/state.rst
@@ -579,6 +579,9 @@ content, its backend-type and *state* variable layout.
 		};
 	};
 
+If the *state* variable set is set to be located in a GPT partition, use
+``4778ed65-bf42-45fa-9c5b-287a1dc4aab1`` as the partition type GUID.
+
 SRAM
 ####
 
-- 
2.30.0


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Re: [PATCH] Documentation: state: recommend a partition type GUID for state GPT partitions

[Sascha Hauer]

On Fri, Jan 29, 2021 at 01:59:36PM +0100, Bastian Krause wrote:
> The partition type GUID was generated randomly. Having a defined GUID
> should reduce the risk of collisions in the future.
> 
> A dedicated GUID could also allow us to implement a fallback in case no
> state backend property is defined. This could then look for a GPT
> partition with this partition type GUID and use that as the backend.
> dt-utils could do the same in userspace. This would be similar to [1].
> 
> [1] https://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/
> 
> Signed-off-by: Bastian Krause <bst@pengutronix.de>
> ---
>  Documentation/user/state.rst | 3 +++
>  1 file changed, 3 insertions(+)

Applied, thanks

Sascha

> 
> diff --git a/Documentation/user/state.rst b/Documentation/user/state.rst
> index 54aa396257..a0e27d4fe8 100644
> --- a/Documentation/user/state.rst
> +++ b/Documentation/user/state.rst
> @@ -579,6 +579,9 @@ content, its backend-type and *state* variable layout.
>  		};
>  	};
>  
> +If the *state* variable set is set to be located in a GPT partition, use
> +``4778ed65-bf42-45fa-9c5b-287a1dc4aab1`` as the partition type GUID.
> +
>  SRAM
>  ####
>  
> -- 
> 2.30.0
> 
> 
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
> 

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