1TARGET_ARCH=x86_64 2TARGET_BASE_ARCH=i386 3TARGET_SUPPORTS_MTTCG=y 4TARGET_KVM_HAVE_GUEST_DEBUG=y 5TARGET_KVM_HAVE_RESET_PARKED_VCPU=y 6TARGET_XML_FILES= gdb-xml/i386-64bit.xml 7TARGET_LONG_BITS=64 8