DEBUGCTLMSR_BTF_SHIFT 233 arch/x86/include/asm/msr-index.h #define DEBUGCTLMSR_BTF_SHIFT 1 DEBUGCTLMSR_BTF_SHIFT 463 tools/testing/selftests/kvm/include/x86_64/processor.h #define DEBUGCTLMSR_BTF_SHIFT 1