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Cloud Hypervisor 48: No AI Code, Major Updates!

9/15/2025

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Summary

Story summary

The Cloud Hypervisor project, launched in 2018 by Google, Intel, Amazon, and Red Hat, has implemented a No AI code policy in version 48.
This open-source Virtual Machine Monitor (VMM) targets cloud workloads, supporting both Windows and Linux guests.
New features include experimental support for "fw_cfg" devices and Inter-VM Shared Memory.
The maximum vCPU limit has increased from 254 to 8,192 for x86_64/KVM, while Intel SGX support has been removed.
Documentation now provides guidance for running Windows 11 guests.

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Story summary

The Cloud Hypervisor project, launched in 2018 by Google, Intel, Amazon, and Red Hat, has implemented a No AI code policy in version 48.
This open-source Virtual Machine Monitor (VMM) targets cloud workloads, supporting both Windows and Linux guests.
New features include experimental support for "fw_cfg" devices and Inter-VM Shared Memory.
The maximum vCPU limit has increased from 254 to 8,192 for x86_64/KVM, while Intel SGX support has been removed.
Documentation now provides guidance for running Windows 11 guests.