MSR_PP0_ENERGY_STATUS  291 arch/x86/include/asm/msr-index.h #define MSR_PP0_ENERGY_STATUS		0x00000639
MSR_PP0_ENERGY_STATUS  520 tools/testing/selftests/kvm/include/x86_64/processor.h #define MSR_PP0_ENERGY_STATUS		0x00000639