On Nov 5, 2019, at 5:19 PM, Jeff Brasen <jbrasen@nvidia.com> wrote:

Wouldn't having a variable that we create and delete on every boot put unnecessary stress on the SPI-NOR that the variable store lives on?
What about the alternative approach where we allow the platform code to modify the attributes of the auto created variable to disable it with hidden/!active but still match for detection purposes so that it doesn't delete and recreate the modified variable each boot? That way all the logic on what to disable can still be in the platform code and all the existing logic in the boot manager can stay basically the same?

What changes every boot that forces the variable to need to get modified?

I would assume the NOR driver is smart enough to not update a variable that is not changing.

The custom BDS could could only create the variable for this device if it does not exist.

Thanks,

Andrew Fish

Thanks,
Jeff