[PATCH v3 04/15] lib: Kconfig: add a config symbol for getting lmb memory map updates

[Tom Rini]

On Mon, Oct 14, 2024 at 12:18:55PM +0530, Sughosh Ganu wrote:
> On Sun, 13 Oct 2024 at 21:00, Tom Rini <trini at konsulko.com> wrote:
> >
> > On Sun, Oct 13, 2024 at 04:25:11PM +0530, Sughosh Ganu wrote:
> > > Add a Kconfig symbol to enable getting updates on any memory map
> > > changes that might be done by the LMB module. This notification
> > > mechanism can then be used to have a synchronous view of allocated and
> > > free memory.
> > >
> > > Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
> > > ---
> > > Changes since V2: None
> > >
> > >  lib/Kconfig | 17 +++++++++++++++++
> > >  1 file changed, 17 insertions(+)
> > >
> > > diff --git a/lib/Kconfig b/lib/Kconfig
> > > index 1dd4f27159..61452f7ac9 100644
> > > --- a/lib/Kconfig
> > > +++ b/lib/Kconfig
> > > @@ -75,6 +75,23 @@ config LIB_UUID
> > >       bool
> > >       select SHA1
> > >
> > > +config MEM_MAP_UPDATE_NOTIFY
> > > +     bool "Get notified of any changes to the LMB memory map"
> > > +     default y if EFI_LOADER
> > > +     help
> > > +       Enable this option to get notification on any changes to the
> > > +       memory that is allocated or freed by the LMB module. This will
> > > +       allow different modules that allocate memory or maintain a memory
> > > +       map to have a synchronous view of available and allocated memory.
> > > +
> > > +config SPL_MEM_MAP_UPDATE_NOTIFY
> > > +     bool "Get notified of any changes to the LMB memory map in SPL"
> > > +     help
> > > +       Enable this option to get notification on any changes to the
> > > +       memory that is allocated or freed by the LMB module. This will
> > > +       allow different modules that allocate memory or maintain a memory
> > > +       map to have a synchronous view of available and allocated memory.
> > > +
> > >  config RANDOM_UUID
> > >       bool "GPT Random UUID generation"
> > >       select LIB_UUID
> >
> > Both of these symbols need to be select'd by the other parts of the code
> > which require them, not prompted. Please do leave the help text for the
> > entry, just remove the text after "bool" and select from the other code
> > which requires this. Thanks.
> 
> Currently, there isn't a consumer of the SPL variant of this symbol. I
> have introduced the SPL variant as the LMB module also gets enabled in
> SPL. Do you think the SPL variant be dropped, and introduced only when
> needed ?

Yes, lets drop it.

-- 
Tom
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