Hi, On Fri, 26 Oct 2018, Torsten Duwe wrote: > Based on ftrace with regs, do the usual thing. > (see Documentation/livepatch/livepatch.txt) > > Use task flag bit 6 to track patch transisiton state for the consistency > model. Add it to the work mask so it gets cleared on all kernel exits to > userland. > > Tell livepatch regs->pc is the place to change the return address. > Make sure the graph tracer call hook is only called on the final function > entry in case regs->pc gets modified after an interception. > > Signed-off-by: Torsten Duwe <duwe@xxxxxxx> It looks good now apart from arm64 asm part which should be reviewed by someone else. However, could you summarize our analysis regarding post-module-load calls of apply_relocate_add() in the commit log, please? It is important for future reference. Thanks, Miroslav
