Cloud Hypervisor 48.0 is now available for this Intel-started, open-source and Rust-based VMM focused on modern cloud workloads. Cloud Hypervisor continues to tailor to Windows and Linux guests while emphasizing security and cloud-native workloads.
Cloud Hypervisor 48 introduces experimental “fw_cfg” device support for being able to pass configuration data and files like VM boot configurations from the host to the guest. There is also experimental support for Inter-VM Shared Memory “ivshmem” as another new feature.
Cloud Hypervisor 48 also brings firmware boot support on RISC-V 64-bit, improved block performance when dealing with 16KB block sizes and smaller, faster VM pause operation especially with larger vCPU counts, and raises the x86_64 KVM vCPU limit. Up to this point Cloud Hypervisor could only handle up to 254 vCPUs with x86_64/KVM while now can handle up to 8,192 vCPUs.
Cloud Hypervisor 48 also has removed Intel SGX support after previously deprecating the feature.
Another notable change for the Cloud Hypervisor open-source project is they have established a policy against AI-generated code. Cloud Hypervisor will decline any contributions known to contain code generated or derived from Large Language Models.
More details on all of the Cloud Hypervisor 48 changes and downloads via GitHub.
