On Mon, 2023-03-13 at 18:10 +0100, Borislav Petkov wrote: > > This means that CET_U will always have at least the CET_SHSTK_EN > > bit > > set and so not be in the init state. So this can probably just warn > > and bail if it sees an init state. > > I don't mind the additional checks as this is a security thing so > sanity checks are good, especially if they're cheap. > > And you don't need to reinit the buffer - just scream loudly when > get_xsave_addr() > returns NULL. Ok, will do this instead in "x86: Add PTRACE interface for shadow stack".
