Your hero absolutely despises violence. Minor pacifism means he only fights when given no other choice, and never allows the killing of prisoners or other defenseless victims.

Major Pacifists won't fight living characters under any circumstances. They may defend themselves, but won't do anything to permanently harm sentient, living creatures. Note that undeniably evil creatures, undead, demons, and the like are fair game. A Major Pacifist might also fight with nonlethal methods, such as with his fists. Such characters only do so when obviously threatened, however.

Savage Worlds Deluxe Edition p. 32