Cloud Hypervisor v43.0 Released!

Posted December 18, 2024 by Cloud Hypervisor Team ‐ 1 min read

This release has been tracked in our roadmap project as iteration v43.0. The following user visible changes have been made:

Live Migration over TCP Connections

Support has been added to enable direct live migration from two hosts via TCP connections. This supplements the existing support for migrating over a UNIX socket which can then be tunnelled as desired. The documentation has been updated. (#6850)

Notable Performance Improvements

The VIRTIO_RING_F_INDIRECT_DESC feature has been enabled for virtio-block devices. This significantly increases the throughput of the devices with a small negative impact on latency. (#6826)

Notable Bug Fixes

  • Cloud Hypervisor now accepts VFIO devices that use I/O PCI BARs on non x86-64 architectures. Whether they function depends on the host PCI host bridge support - previously they would be rejected even if the driver did not use these BARs. (#6871)
  • Command line groups were adjusted to ensure that at least one payload parameter was provided if any other VM parameters provided. (#6832)

Contributors

Many thanks to everyone who has contributed to our release:

Download

See the GitHub Release for the release assets.