__HYPERCALL_2ARG  118 include/asm-x86/xen/hypercall.h 	__HYPERCALL_2ARG(a1,a2)		__arg3 = (unsigned long)(a3);
__HYPERCALL_2ARG  156 include/asm-x86/xen/hypercall.h 	__HYPERCALL_2ARG(a1, a2);					\