MSR_P4_BPU_PERFCTR0  734 arch/x86/include/asm/msr-index.h #define MSR_P4_BPU_PERFCTR0		0x00000300
MSR_P4_BPU_PERFCTR0  959 tools/testing/selftests/kvm/include/x86_64/processor.h #define MSR_P4_BPU_PERFCTR0		0x00000300