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libvirt/docs/drvch.rst

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=======================
Cloud Hypervisor driver
=======================
.. contents::
Cloud Hypervisor is an open source Virtual Machine Monitor (VMM) that
runs on top of KVM. The project focuses on exclusively running modern,
cloud workloads, on top of a limited set of hardware architectures and
platforms. Cloud workloads refers to those that are usually run by
customers inside a cloud provider. For our purposes this means modern
operating systems with most I/O handled by paravirtualised devices
(i.e. virtio), no requirement for legacy devices, and 64-bit CPUs.
The libvirt Cloud Hypervisor driver is intended to be run as a session
driver without privileges. The cloud-hypervisor binary itself should be
``setcap cap_net_admin+ep`` (in order to create tap interfaces).
Expected connection URI would be
``ch:///session``
Example guest domain XML configurations
=======================================
The Cloud Hypervisor driver in libvirt is in its early stage under active
development only supporting a limited number of Cloud Hypervisor features.
Firmware is from
`hypervisor-fw <https://github.com/cloud-hypervisor/rust-hypervisor-firmware/releases>`__
**Note: Only virtio devices are supported**
::
<domain type='kvm'>
<name>cloudhypervisor</name>
<uuid>4dea22b3-1d52-d8f3-2516-782e98ab3fa0</uuid>
<os>
<type>hvm</type>
<kernel>hypervisor-fw</kernel>
</os>
<memory unit='G'>2</memory>
<devices>
<disk type='file'>
<source file='disk.raw'/>
<target dev='vda' bus='virtio'/>
</disk>
<interface type='ethernet'>
<model type='virtio'/>
</interface>
</devices>
<vcpu>2</vcpu>
</domain>