__HYPERCALL_3ARG  120 include/asm-x86/xen/hypercall.h 	__HYPERCALL_3ARG(a1,a2,a3)	__arg4 = (unsigned long)(a4);
__HYPERCALL_3ARG  167 include/asm-x86/xen/hypercall.h 	__HYPERCALL_3ARG(a1, a2, a3);					\