On Fri, 2 Aug 2024 at 01:30, Richard Henderson <richard.hender...@linaro.org> wrote: > > With pcrel, we cannot check the guarded page bit at translation > time, as different mappings of the same physical page may or may > not have the GP bit set. > > Instead, add a couple of helpers to check the page at runtime, > after all other filters that might obviate the need for the check. > > The set_btype_for_br call must be moved after the gen_a64_set_pc > call to ensure the current pc can still be computed. > > Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org> > Signed-off-by: Richard Henderson <richard.hender...@linaro.org> > --- > > v2: Enable unwind from guarded_page_br. > Since guarded_page_check is called exclusively with btype != 0, > it must immediately follow an indirect branch or eret, so cpu > state is up-to-date, so unwind is not required. >
Applied to target-arm.next, thanks. -- PMM
