Hi Mark, On Fri, Dec 01, 2017 at 02:04:06PM +0000, Mark Rutland wrote: > On Thu, Nov 30, 2017 at 04:39:28PM +0000, Will Deacon wrote: > > Hi again, > > > > This is version two of the patches previously posted here: > > > > > > http://lists.infradead.org/pipermail/linux-arm-kernel/2017-November/542751.html > > > > Changes since v1 include: > > > > * Based on v4.15-rc1 > > * Trampoline moved into FIXMAP area > > * Explicit static key replaced by cpu cap > > * Disable SPE for userspace profiling if kernel unmapped at EL0 > > * Changed polarity of cpu feature to match config option > > * Changed command-line option so we can force on in future if necessary > > * Changed Falkor workaround to invalidate different page within 2MB region > > * Reworked alternative sequences in entry.S, since the NOP slides with > > kaiser=off were measurable > > This generally looks good to me. > > For patches patches 1-10, 13-15, and 17, feel free to add: > > Reviewed-by: Mark Rutland <[email protected]>
Thanks for going through this. Do you have any ideas about what we could rename the command-line option to? I'll get us started: - kaiser= - hidekernel= - unmapkernel= - hardenkaslr= - swuan= ... Will
