__HYPERCALL_ARG1REG   97 arch/x86/include/asm/xen/hypercall.h #define __HYPERCALL_ARG1REG	"ebx"
__HYPERCALL_ARG1REG  104 arch/x86/include/asm/xen/hypercall.h #define __HYPERCALL_ARG1REG	"rdi"