1. A method of supporting virtualization of a loadable module, the method being performed by a virtualization supporting apparatus, comprising: initiating conversion of source code of a loadable module; searching for a virtualization-sensitive instruction of the loadable module during the conversion of the source code; generating a virtualization-sensitive instruction table based on the found virtualization-sensitive instruction when the virtualization sensitive instruction is found by the searching; substituting, based on the generated virtualization-sensitive instruction table, the virtualization-sensitive instruction of the loadable module with a corresponding instruction recognizable in a privileged mode, wherein the corresponding instruction does not change an algorithm of the source code and complies with the virtualization-sensitive instruction of the loadable module; and loading and executing the loadable module having the substituted instruction recognizable in the privileged mode in a kernel.