__HYPERCALL_ARG2REG   94 arch/x86/include/asm/xen/hypercall.h #define __HYPERCALL_ARG2REG	"ecx"
__HYPERCALL_ARG2REG  101 arch/x86/include/asm/xen/hypercall.h #define __HYPERCALL_ARG2REG	"rsi"