On Tue, Dec 06, 2016 at 10:42:47AM +0000, David Howells wrote: > Greg KH <[email protected]> wrote: > > > What about all of the ways you can change ioports dynamically from > > ioctls? Or can't python write ioctls to device nodes? :) > > Do you mean change the ioport a driver uses by ioctl or actually read/write an > ioport directly?
change the ioport a driver uses. The tty layer can do this for UARTs through an ioctl (can't remember which one off the top of my head, sorry, it gets reported as a bug by the syscall fuzzers every other year or so when they crash the kernel randomly...) > Do the following patches that I've already posted address your issues: > > http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/commit/?h=efi-lock-down&id=c67c338dd82d28c67d38eb3147368eb36dbf1c16 > > http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/commit/?h=efi-lock-down&id=10bd7277eef5194ba038fc2d907bac9e6aeab12b > > They're going to be in a patchset that I am/was intending to sit atop the > module parameter-lockdown patchset. Ah, I hadn't seen those, that's a good start, and does close some other places. thanks, greg k-h
