LGUEST_SHUTDOWN_POWEROFF  840 arch/x86/lguest/boot.c 	hcall(LHCALL_SHUTDOWN, __pa("Power down"), LGUEST_SHUTDOWN_POWEROFF, 0);
LGUEST_SHUTDOWN_POWEROFF  850 arch/x86/lguest/boot.c 	hcall(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF, 0);