https://lihuiba.github.io/en/tags/microkernel/Recent content in Microkernel on Deep in the clouds, I know not where.Hugoen-USMon, 24 Aug 2026 00:00:00 +0000https://lihuiba.github.io/en/p/microkernel-vmm-done-right/Mon, 24 Aug 2026 00:00:00 +0000https://lihuiba.github.io/en/p/microkernel-vmm-done-right/In 2005 the Xen team asked whether VMMs are microkernels done right; over twenty years isolation went to microVMs, the dataplane to silicon, discipline to DPUs, and only 'the service stack restarts painlessly' went unclaimed — this article traces that history and its four obstacles, then offers a pure-software assembly: a thin core defined as firmware, stateless service VMs, a dataplane delegated to silicon, holding with VM boundaries and the IOMMU the boundary the DPU holds with PCIe.