CONFIG_PPC_POWERNV is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

IBM PowerNV (Non-Virtualized) platform support

modulename: ics-opal.ko

and/or

imc-pmu.ko

configname: CONFIG_PPC_POWERNV

Linux Kernel Configuration
└─>IBM PowerNV (Non-Virtualized) platform support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
/arch/powerpc/sysdev/xics/
selects
CONFIG_PPC_NATIVE
CONFIG_PPC_XICS
CONFIG_PPC_ICP_NATIVE
CONFIG_PPC_XIVE_NATIVE
CONFIG_PPC_P7_NAP
CONFIG_PCI
CONFIG_PCI_MSI
CONFIG_EPAPR_BOOT
CONFIG_PPC_INDIRECT_PIO
CONFIG_PPC_UDBG_16550
CONFIG_PPC_SCOM
CONFIG_ARCH_RANDOM
CONFIG_CPU_FREQ
CONFIG_CPU_FREQ_GOV_PERFORMANCE
CONFIG_CPU_FREQ_GOV_POWERSAVE
CONFIG_CPU_FREQ_GOV_USERSPACE
CONFIG_CPU_FREQ_GOV_ONDEMAND
CONFIG_CPU_FREQ_GOV_CONSERVATIVE
CONFIG_PPC_DOORBELL
CONFIG_MMU_NOTIFIER
CONFIG_FORCE_SMP


is selected by
CONFIG_KVM_BOOK3S_64_HV