Re: [Xen-devel] [PATCH v3 09/12] livepatch: Add support for modules .modinfo section metadata

[Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>]

On 9/16/19 11:59 AM, Pawel Wieczorkiewicz wrote:
> Having detailed hotpatch metadata helps to properly identify module's
> origin and version. It also allows to keep track of the history of
> hotpatch loads in the system (at least within dmesg buffer size
> limits).
>
> The hotpatch metadata are embedded in a form of .modinfo section.
> Each such section contains data of the following format:
> key=value\0key=value\0...key=value\0
>
> The .modinfo section may be generated and appended to the resulting
> hotpatch ELF file optionally as an extra step of a higher level
> hotpatch build system.
>
> The metadata section pointer and the section length is stored in the
> hotpatch payload structure and is used to display the content upon
> hotpatch apply operation.
>
> Signed-off-by: Pawel Wieczorkiewicz <wipawel@xxxxxxxxx>
> Reviewed-by: Andra-Irina Paraschiv <andraprs@xxxxxxxxxx>
> Reviewed-by: Bjoern Doebel <doebel@xxxxxxxxx>
> Reviewed-by: Leonard Foerster <foersleo@xxxxxxxxx>
> Reviewed-by: Martin Pohlack <mpohlack@xxxxxxxxx>
> Reviewed-by: Norbert Manthey <nmanthey@xxxxxxxxx>
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> ---
Reviewed-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>

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