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cpufeatures: Always advertise POWER8NVL as DD2
[ Upstream commit 17975a6 ] 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: 7f4c8e8 "dt: add /cpus/ibm, powerpc-cpu-features device tree bindings" Signed-off-by: Alexey Kardashevskiy <[email protected]> Reviewed-by: Nicholas Piggin <[email protected]> Signed-off-by: Stewart Smith <[email protected]>
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