[PATCH 1/2] powerpc/powernv: Fix CPU hotplug to handle waking on HVI

[Michael Ellerman]

Benjamin Herrenschmidt <benh at kernel.crashing.org> writes:

> The IPIs come in as HVI not EE, so we need to test the appropriate
> SRR1 bits. The encoding is such that it won't have false positives
> on P7 and P8 so we can just test it like that. We also need to handle
> the icp-opal variant of the flush.

Your comment implies that this fix is only required on Power9, but I'm
not 100% clear.

cheers