  We propose a dissipation engineering scheme that prepares and protects a
maximally entangled state of a pair of superconducting qubits. This is done by
off-resonantly coupling the two qubits to a low-Q cavity mode playing the role
of a dissipative reservoir. We engineer this coupling by applying six
continuous-wave microwave drives with appropriate frequencies. The two qubits
need not be identical. We show that our approach does not require any
fine-tuning of the parameters and requires only that certain ratios between
them be large. With currently achievable coherence times, simulations indicate
that a Bell state can be maintained over arbitrary long times with fidelities
above 94%. Such performance leads to a significant violation of Bell's
inequality (CHSH correlation larger than 2.6) for arbitrary long times.
