Every person on parole under § 19.2-314 shall comply with such terms and conditions as may be prescribed by the Board according to § 53.1-157 and shall be subject to the penalties imposed by law for a violation of such terms and conditions. Notwithstanding any other provision of the Code, if parole is revoked as a result of any such violation, such person may be returned to the institution established pursuant to § 53.1-63 upon the direction of the Parole Board with the concurrence of the Department of Corrections, provided such person has not been convicted since his release on parole of an offense constituting a felony under the laws of the Commonwealth. Time on parole shall not be counted as part of the four-year period of commitment under this section. In addition, such person may be brought before the sentencing court for imposition of all or part of the suspended sentence.