On Mon, 2024-11-04 at 11:34 -0500, Daniel P. Smith wrote: [...] > In case the question comes up from those not familiar, the kexec does > an GETSEC[SEXIT] which closes off access to Localities 1 and 2, thus > locking the DRTM PCR values. It brings the CPUs out of SMX mode so > the target kernel does not require to have any knowledge about > running in that mode. So, to repeat the question: why a sysfs interface for setting the default locality? If I understand correctly from what you say above, it can't be used in any kernel except the SL one, and that one could run permanently in it, so there's no requirement at all for user space to be able to change this, is there? Regards, James
