Strategic and tactical ideas for White in this KIA game What are the good strategic and tactical plans for White in this position?

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
1. e4 e6 2. d3 d5 3. Nd2 c5 4. g3 Nc6 5. Bg2 Nf6 6. Ngf3 Be7 7. O-O O-O 8. Re1 Qc7 9. e5 Nd7 10. Qe2 f5 11. exf6 Nxf6


I wonder what should I do with the Black's c, d, and e pawns. How to prevent them from pushing forward and after preventing them from pushing forward, what should be the next plan for White?
I had studied the KIA for a time in the early'90's, although with mixed results, so I don't claim to be an expert on the subject.  In this position 12.c3 would constrain the Black "d" pawn, but I think I would initially play 12.Bh3 to restrain the more important "e" pawn, which is currently backward on the open file.  Then if 12..., e5; 13.Bxc8 &amp; 14.Nxe5 would win it. Or if Black decided to reinforce it by 12..., Nd8, then 13.Ne5 could occupy the hole and then support this N with subsequent 14. Ndf3 and 15.Bf4 moves.  And since the purpose of the KIA is a kingside attack, you would probably subsequently want to mobilize your kingside pawns once you had this center control.  I hope these suggestions are of some value.