[Skiboot] [PATCH skiboot] cpufeatures: Always advertise POWER8NVL as DD2

Nicholas Piggin npiggin at gmail.com
Thu Feb 7 14:43:11 AEDT 2019

Alexey Kardashevskiy's on February 7, 2019 10:41 am:
> Despite the major version of PVR being 1 (0x004c0100) for POWER8NVL,
> these chips are functionally equalent to P8/P8E DD2 levels.
> This advertises POWER8NVL as DD2. As the result, skiboot adds
> ibm,powerpc-cpu-features/processor-control-facility for such CPUs and
> the linux kernel can use hypervisor doorbell messages to wake secondary
> threads; otherwise "KVM: CPU %d seems to be stuck" would appear because
> of missing LPCR_PECEDH.
> Fixes: 7f4c8e8ce0b "dt: add /cpus/ibm, powerpc-cpu-features device tree bindings"
> Signed-off-by: Alexey Kardashevskiy <aik at ozlabs.ru>

Thanks for fixing.

Reviewed-by: Nicholas Piggin <npiggin at gmail.com>

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