On x86-64 I elected to keep badges at 28 bits initially just to provide a consistent kernel API. Aside from that there is no reason the badge size cannot be increased. Adrian On Thu 20-Oct-2016 7:32 AM, Corey Richardson wrote: Is there a future in which we recover the extra 32+ bits of padding on 64-bit systems for use in badges? In Robigalia, 28 bit badges are extremely limiting for what we want to use them for. _______________________________________________ Devel mailing list Devel@sel4.systemsmailto:Devel@sel4.systems https://sel4.systems/lists/listinfo/devel