The Xen hypervisor needs to manage several resources for each guest, each of those requiring the hypervisor to allocate memory for this task. In order to limit the amount of memory needed, most resources are limited, e.g. via guest configuration. There is an alternative approach: instead of limiting each resource individually, manage all resources via a common resource management, allowing more flexibility for the guests. This presentation is a followup of a related design session at the Xen summit 2022.
