Prevent an IRQ (or any other exceptions) to make a call to an undefined handler when the interrupt handler has not been registered yet. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11965 6f19259b-4bc3-4df7-8a09-765794883524
Prevent an IRQ (or any other exceptions) to make a call to an undefined handler when the interrupt handler has not been registered yet. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11965 6f19259b-4bc3-4df7-8a09-765794883524