On Tue, May 17, 2022 at 04:34:54PM -0700, Matthias Kaehlcke wrote: > As of now LoadPin restricts loading of kernel files to a single pinned > filesystem, typically the rootfs. This works for many systems, however it > can result in a bloated rootfs (and OTA updates) on platforms where > multiple boards with different hardware configurations use the same rootfs > image. Especially when 'optional' files are large it may be preferable to > download/install them only when they are actually needed by a given board. > Chrome OS uses Downloadable Content (DLC) [1] to deploy certain 'packages' > at runtime. As an example a DLC package could contain firmware for a > peripheral that is not present on all boards. DLCs use dm-verity [2] to > verify the integrity of the DLC content. For the coming v5 (which will fix the 0-day reports), if I can get some Acks from the dm folks, I can carry this with other loadpin changes in my tree. Though I'm fine with this going via the dm tree, too: Acked-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
