X7 4591 arch/x86/kvm/emulate.c X7(D(Undefined)), X7 4761 arch/x86/kvm/emulate.c DI(SrcAcc | DstReg, pause), X7(D(SrcAcc | DstReg)), X7 26 tools/perf/arch/arm64/util/unwind-libdw.c dwarf_regs[7] = REG(X7);