xen_single_call 245 arch/x86/include/asm/xen/hypercall.h res = xen_single_call(call, a1, a2, a3, a4, a5); xen_single_call 88 arch/x86/xen/multicalls.c mc->result = xen_single_call(mc->op, mc->args[0], mc->args[1],