[RFC PATCH 11/31] lib: Kconfig: add a config symbol for getting memory map updates

[Ilias Apalodimas]

On Fri, 7 Jun 2024 at 21:54, Sughosh Ganu <sughosh.ganu at linaro.org> wrote:
>
> Add a Kconfig symbol to enable getting updates on any memory map
> changes that might be done by some other module. This notification
> mechanism can then be used to have a synchronous view of allocated and
> free memory.

Is there any chance we want to build a firmware that allows memory not
to be reserved?
I think we should make the feature mandatory

Cheers
/Ilias
>
> Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
> ---
>  lib/Kconfig | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/lib/Kconfig b/lib/Kconfig
> index 189e6eb31a..9ea02ae006 100644
> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -74,6 +74,15 @@ config HAVE_PRIVATE_LIBGCC
>  config LIB_UUID
>         bool
>
> +config MEM_MAP_UPDATE_NOTIFY
> +       bool "Get notified of any changes to the memory map"
> +       default y if EVENT && LMB && EFI_LOADER
> +       help
> +         Enable this option to get notification on any changes to the
> +         memory that is allocated or freed. This will allow different
> +         modules that allocate memory to have a synchronous view of available
> +         and allocated memory.
> +
>  config RANDOM_UUID
>         bool "GPT Random UUID generation"
>         select LIB_UUID
> --
> 2.34.1
>