xen-doc 4.17.1+2-gb773c48e36-1 (arm64 binary) in ubuntu mantic

 Documentation for the Xen hypervisor and surrounding software,
 including descriptions of the hypercall interfaces and of some
 of the library APIs.
 .
 You do not need this package for the primary manpages for the
 Xen control utilities, as those are in the xen-utils-common package.