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⇱ Microsoft Announces Open-Source "Hyperlight Wasm" Project - Phoronix


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Microsoft Announces Open-Source "Hyperlight Wasm" Project

Written by Michael Larabel in Microsoft on 26 March 2025 at 01:44 PM EDT. 16 Comments
Microsoft last year announced the open-source Hyperlight project as an embedded VMM for use as a micro-VM manager of sorts that can be run within Windows and Linux applications. This VM-based security for small embedded functions now has its scope expanded with the open-source release today of Hyperlight Wasm for bringing in WebAssembly to the party.

Microsoft today announced the public open-source release today of Hyperlight Wasm as a Hyperlight VM micro-guest for running WebAssembly component workloads written in various programming languages that can ultimately target WASM. Linux, Windows, and macOS are all supported by Hyperlight Wasm.

👁 Hyperlight WASM


The now-public hyperlight-wasm GitHub repository describes this new open-source software as:
"Hyperlight-Wasm is a component that enables Wasm Modules to be run inside lightweight Virtual Machine backed Sandbox. Its purpose is to enable applications to safely run untrusted or third party Wasm code within a VM with very low latency/overhead. It is built on top of Hyperlight.

Hyperlight-Wasm currently supports running applications using either the Windows Hypervisor Platform on Windows, KVM on Linux or /dev/mshv."

Those interested in this newest open-source Rust code out of Microsoft can learn more about Hyperlight Wasm via the Microsoft Open-Source Blog.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.