https://rfcorner.in/tags/pvm/Recent content in Pvm on Dhiru's NotebookHugoenFri, 14 Aug 2026 00:00:00 +0000https://rfcorner.in/posts/porting-pvm-to-linux-7.2/Fri, 14 Aug 2026 00:00:00 +0000https://rfcorner.in/posts/porting-pvm-to-linux-7.2/<p>The original PVM kernel tree was based on Linux 6.12.x, while current Linux <code>master</code> had reached 7.2-rc7. This note records the commands I used to build, package, and boot the forward port. The resulting tree is available in the <a href="https://github.com/kholia/linux/tree/pvm-720"><code>pvm-720</code> branch</a>.</p> <h2 id="pvm-in-four-lines">PVM in four lines</h2> <p>PVM (Pagetable-based Virtual Machine) is a KVM guest hypervisor designed for running nested workloads without exposing VMX or SVM to the guest. It uses a small shared region for privilege transitions and efficient shadow page tables for memory virtualization. The design is described in the SOSP '23 paper <a href="https://doi.org/10.1145/3600006.3613158"><em>PVM: Efficient Shadow Paging for Deploying Secure Containers in Cloud-native Environments</em></a>. The original code is in the <a href="https://github.com/virt-pvm/linux"><code>virt-pvm/linux</code></a> repository.</p>