/* * Send an array of these to HYPERVISOR_set_trap_table(). * The privilege level specifies which modes may enter a trap via a software * interrupt. On x86/64, since rings 1 and 2 are unavailable, we allocate * privilege levels as follows: * Level == 0: Noone may enter * Level == 1: Kernel may enter * Level == 2: Kernel may enter * Level == 3: Everyone may enter */