On Tue, Jun 4, 2019 at 1:01 PM Nayna <nayna@xxxxxxxxxxxxxxxxxx> wrote: > It seems efivars were first implemented in sysfs and then later > separated out as efivarfs. > Refer - Documentation/filesystems/efivarfs.txt. > > So, the reason wasn't that sysfs should not be used for exposing > firmware variables, > but for the size limitations which seems to come from UEFI Specification. > > Is this limitation valid for the new requirement of secure variables ? I don't think the size restriction is an issue now, but there's a lot of complex semantics around variable deletion and immutability that need to be represented somehow.
