On Tue, 2018-05-08 at 07:05:14 UTC, =?utf-8?q?C=C3=A9dric_Le_Goater?= wrote: > The kexec_state KEXEC_STATE_IRQS_OFF barrier is reached by all > secondary CPUs before the kexec_cpu_down() operation is called on > secondaries. This can raise conflicts and provoque errors in the XIVE > hcalls when XIVE is shutdown with H_INT_RESET on the primary CPU. > > To synchronize the kexec_cpu_down() operations and make sure the > secondaries have completed their task before the primary starts doing > the same, let's move the primary kexec_cpu_down() after the > KEXEC_STATE_REAL_MODE barrier. > > This change of the ending sequence of kexec is mostly useful on the > pseries platform but it impacts also the powernv, ps3 and 85xx > platforms. powernv can be easily tested and fixed but some caution is > required for the other two. > > Signed-off-by: Cédric Le Goater <c...@kaod.org>
Series applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/d2b04b0c78881ef1c051cc3a4a2c61 cheers
