On Mon, Mar 9, 2015 at 6:10 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote: > On Mon, Mar 9, 2015 at 6:00 PM, Kees Cook <keescook@xxxxxxxxxxxx> wrote: >> On Sat, Mar 7, 2015 at 2:07 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote: >> >> This may be a stupid question, but are boot_params being used outside >> of the compressed loader? If so, it might make sense to split that >> change into a separate patch to go to stable, if it's causing >> problems. (And document what problem is getting solved.) > > boot_params will keep the same and until it is passed > x86_64_start_kernel in vmlinux. > and there it will be copied, same as cmdline. > > but current kaslr only support random the base high, and it does not > support kexec > and current boot loader (grub2) put it really low. (under 1M). the > real real_mode. :). Oh right! Of course, thanks for the details. Yes, it was implicitly ignored before, but now it needs to be explicitly ignored. Great, thanks! -Kees > > Thanks > > Yinghai -- Kees Cook Chrome OS Security -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html