[PATCH 0/2] powerpc/xive: fix CPU hot unplug

Benjamin Herrenschmidt benh at kernel.crashing.org
Tue Oct 3 19:22:40 AEDT 2017


On Tue, 2017-10-03 at 17:58 +1100, David Gibson wrote:
> 
> Ok.. why do you think this isn't of use?  I'm pretty sure this is
> necessary for the TCG case, since MSR is checked in cpu_has_work(),
> which could otherwise wake up the "dead" cpu.

Ony if it's not in a PM state, in that case we check the corresponding
LPCR:PECE* bit. At least on P7 and later.

Cheers,
Ben.



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