On 6/8/24 05:53, Heinrich Schuchardt wrote:
Am 7. Juni 2024 20:52:20 MESZ schrieb Sughosh Ganu <sughosh.g...@linaro.org>:
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.
Signed-off-by: Sughosh Ganu <sughosh.g...@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"
Looking at later patches it seems you are sending memory map events from
different memory maps: LMB and EFI.
%s/to the memory map/to a memory map/
To the "LMB memory map"?
+ default y if EVENT && LMB && EFI_LOADER
I am missing 'depends on EVENT && LMB' here. This should allow to simplify the
'default' statement. But why not use select?
Sending messaging makes only sense if two memory management systems are
present. How about:
depends on EVENT && LMB && EFI_LOADER
default y
Best regards
Heinrich
+ 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.
Mentioning LMB and EFI here would be helpful:
help
U-Boot manages memory allocation in multiple modules: LMB and EFI.
To keep them synchronized memory change messages are used.
Enable this symbol to ensure synchronization.
Best regards
Heinrich
+
config RANDOM_UUID
bool "GPT Random UUID generation"
select LIB_UUID
