Generalized geometric vacua with eight supercharges

We investigate compactifications of type ii and m-theory down to ads 5 with generic fluxes that preserve eight supercharges, in the framework of exceptional generalized geometry. the geometric data and gauge fields on the internal manifold are encoded in a pair of generalized structures corresponding to the vector and hyper-multiplets of the reduced five-dimensional supergravity. supersymmetry translates into integrability conditions for these structures, generalizing, in the case of type iib, the sasaki-einstein conditions. we show that the ten and eleven-dimensional type iib and m-theory killing-spinor equations specialized to a warped ads 5 background imply the generalized integrability conditions.