Linux 5.12 Should Be Able To Boot As The Root Partition On Microsoft's Hypervisor
Written by Michael Larabel in Microsoft on 17 February 2021 at 12:00 AM EST. 1 Comment
MICROSOFT --
Last year was the interesting remarks by Microsoft that they want to "create a complete virtualization stack with Linux." The latest fruits of that are set to land with the Linux 5.12 kernel.

As part of increasing the Linux virtualization support within the Microsoft space, they were working to allow Linux root partition support with the Microsoft hypervisor. The "root partition" with their hypervisor is similar to Xen's Dom0 for in turn starting and managing the unprivileged domains. Linux 5.12 is set to have the Hyper-V code changes to allow the Linux kernel to work as the root partition on Microsoft's Hypervisor.

Sent in Tuesday as part of the Hyper-V patches for Linux 5.12 is that ability for Linux to boot as the root partition. Plus there are a number of other low-level, minor changes but this root partition support is the most interesting. So assuming Linus has no objections with it, the code should be part of the 5.12 stable release this spring.
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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 or contacted via MichaelLarabel.com.

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