"With the release of version 48, a new policy is in effect that rejects contributions written using large language models. Cloud Hypervisor originated in 2018, when Google, Intel, Amazon, and Red Hat jointly launched the rust-vmm project to develop virtualization components in the Rust programming language. Intel later decided to take a different direction, resulting in Cloud Hypervisor. This is a Virtual Machine Monitor designed specifically for cloud workloads."
"With version 48 of Cloud Hypervisor, the maximum number of supported vCPUs on x86_64 hosts with KVM is increased from 254 to 8,192. This is a significant step that greatly increases scalability. Support for Intel SGX has also been removed. Inter-VM shared memory has been added and the pausing of virtual machines with many vCPUs has been accelerated. The project has thus demonstrated its growth from an experimental hypervisor to a fully fledged solution for production environments in a short period of time."
Cloud Hypervisor began from rust-vmm efforts and evolved into a Virtual Machine Monitor tailored for cloud workloads, supporting Linux and Windows VMs. The project moved under the Linux Foundation governance, attracting Microsoft, ARM, ByteDance, and Alibaba, and now underpins public cloud infrastructure. Version 48 raises supported vCPUs on x86_64 KVM hosts from 254 to 8,192, removes Intel SGX support, adds inter-VM shared memory, and speeds pausing of large vCPU VMs. The hypervisor remains lightweight with dynamic CPU, memory, and device addition and a compact, maintainable codebase favored by hyperscalers. A new policy disallows contributions produced by large language models.
Read at Techzine Global
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