Dom0 Disaggregation

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Dom0 Dissaggregation

The Dom0 or control domain has traditionally been a monolithic privileged virtual machine. However, the original intention was for Dom0 to be carefully broken into several privileged service domains - termed Dom0 disaggregation. Qubes OS, Citrix XenClient, and most recently Xoar have made the case for more disaggregation of Dom0 for purposes of better security, reliablity, isolation, and auditability.

Xoar architecture.jpg