__HYPERCALL_3PARAM  123 arch/x86/include/asm/xen/hypercall.h #define __HYPERCALL_4PARAM	__HYPERCALL_3PARAM, "+r" (__arg4)
__HYPERCALL_3PARAM  183 arch/x86/include/asm/xen/hypercall.h 		      : __HYPERCALL_3PARAM				\