Hi, On Tue, Oct 18, 2016 at 03:09:51PM +0900, AKASHI Takahiro wrote: > As making CONFIG_DEBUG_RODATA mandatory is a good idea, so will be > for CONFIG_SET_MODULE_RONX.
I completely agree, given most distros ship a large number of drivers as modules... > This patch adds a command line parameter, "module_ronx=," in order to > make this configuration always on in the future, but still allowing for > disabling read-only module mappings at boot time as "rodata=" does. > > I have, however, some concerns on this prototype: > (1) should we use a separate parameter like "module_ronx=," or > unify it with "rodata="? I think this should be merged with "rodata=". > (2) should we keep NX permission set even if module_ronx=off? I think we should; for arm64 we set NX for kernel mappings even with rodata=off, and I think we should be consistent. Thanks, Mark.
