root/arch/x86/include/asm/xen/

1. events.h
2. hypercall.h
3. hypervisor.h
4. interface.h
5. interface_32.h
6. interface_64.h
7. page-coherent.h
8. page.h
9. pci.h
10. swiotlb-xen.h
11. trace_types.h