MSR_IA32_LASTBRANCHFROMIP  226 arch/x86/include/asm/msr-index.h #define MSR_IA32_LASTBRANCHFROMIP	0x000001db
MSR_IA32_LASTBRANCHFROMIP  456 tools/testing/selftests/kvm/include/x86_64/processor.h #define MSR_IA32_LASTBRANCHFROMIP	0x000001db