MSR_CORE_PERF_FIXED_CTR0  821 arch/x86/include/asm/msr-index.h #define MSR_CORE_PERF_FIXED_CTR0	0x00000309
MSR_CORE_PERF_FIXED_CTR0 1046 tools/testing/selftests/kvm/include/x86_64/processor.h #define MSR_CORE_PERF_FIXED_CTR0	0x00000309