__HYPERCALL_3PARAM  109 include/asm-x86/xen/hypercall.h #define __HYPERCALL_4PARAM	__HYPERCALL_3PARAM, "+r" (__arg4)
__HYPERCALL_3PARAM  169 include/asm-x86/xen/hypercall.h 		      : __HYPERCALL_3PARAM				\