Microsoft Embraces QEMU 10.2 with New MSHV Accelerator for Hyper-V Guests
Microsoft has introduced a new MSHV accelerator with the release of QEMU 10.2, enhancing virtualization for Hyper-V guests. This innovation allows virtual machines (VMs) to be created without the need for nested virtualization. It represents a significant step in optimizing Microsoft’s Azure cloud platform.
MSHV Accelerator Presentation at FOSDEM 2026
Recently, at FOSDEM 2026, Magnus Kulke, a Microsoft engineer, showcased the capabilities of the MSHV accelerator. His presentation attracted many attendees interested in learning how this technology enhances virtualization.
Key Features of the MSHV Accelerator
- Facilitates VM creation from Hyper-V guests without nested virtualization.
- Enhances exposure of Hyper-V capabilities across various virtualization topologies.
- Supports live migration of VMs.
- Plans for QEMU CPU model support and device passthrough capabilities.
- Offers x86_64 support complemented with ARM compatibility.
Challenges and Future Plans
In his talk, Kulke also addressed the challenges faced in developing the MSHV accelerator. Looking ahead, Microsoft aims to expand on the existing features and tackle these obstacles. The company remains committed to improving virtualization on their Azure platform.
Accessing FOSDEM 2026 Presentation Assets
For those interested in the details of the MSHV accelerator, presentation materials from FOSDEM 2026 are available on the FOSDEM.org website. This provides an excellent opportunity to explore the future of virtualization with Microsoft’s latest technologies.
