+%ifarch x86_64 amd64
+%define centos_cloudimg https://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-1801-01.qcow2
+%define centos_mirror http://mirror.centos.org/centos/7
+%else
+%define centos_cloudimg https://cloud.centos.org/altarch/7/images/aarch64/CentOS-7-aarch64-GenericCloud-1708.qcow2.xz
+%define centos_cloudimg_xz 1
+%define centos_mirror http://mirror.centos.org/altarch/7
+%define dib_block_device_efi 1
+%endif
+%define centos_efibootimg %{centos_mirror}/os/%{_arch}/images/efiboot.img
+%define centos_efidir %{centos_mirror}/os/%{_arch}/EFI