Cloud Hypervisor v32.0 Released!

Posted May 18, 2023 by Cloud Hypervisor Team ‐ 1 min read

This release has been tracked in our roadmap project as iteration v32.0. The following user visible changes have been made:

Increased PCI Segment Limit

The maximum number of PCI segments that can be used is now 96 (up from 16).

API Changes

  • The VmmPingResponse now includes the PID as well as the build details. (#5348)

Notable Bug Fixes

  • Ignore and warn TAP FDs sent via the HTTP request body (#5350)
  • Properly preserve and close valid FDs for TAP devices (#5373)
  • Only use KVM_ARM_VCPU_PMU_V3 if available (#5360)
  • Only touch the tty flags if it’s being used (#5343)
  • Fix seccomp filter lists for vhost-user devices (#5361)
  • The number of vCPUs is capped at the hypervisor maximum (#5357)
  • Fixes for TTY reset (#5414)
  • CPU topology fixes on MSHV (#5325)
  • Seccomp fixes for older distributions (#5397)


Many thanks to everyone who has contributed to our release:


See the GitHub Release for the release assets.