Nicholas Piggin <npig...@gmail.com> writes: > Take the DSCR value set by firmware as the dscr_default value, > rather than zero. > > POWER9 recommends DSCR default to a non-zero value. > > From: Nicholas Piggin <npig...@gmail.com> > --- > This has a problem that OS which set the DSCR to non-default > then kexec to Linux will be used as our default. I send a > corresponding patch to skiboot which resets SPRs in opal_reinit_cpus > which will make this do the right thing in that case.
That doesn't work for pseries etc. We should reset it in the kexec down path. cheers
