On Mon, Nov 16, 2020 at 6:49 AM Alexandre Chartre <alexandre.char...@oracle.com> wrote: > > Extend PTI user mappings so that more kernel entry code can be executed > with the user page-table. To do so, we need to map syscall and interrupt > entry code, per cpu offsets (__per_cpu_offset, which is used some in > entry code), the stack canary, and the PTI stack (which is defined per > task).
Does anything unmap the PTI stack? Mapping is easy, and unmapping could be a pretty big mess. --Andy
