Re: [RFC Patch 0/7] kernel: Introduce multikernel architecture support

Hillf Danton
2025-09-21T01:47:41Z

On Thu, 18 Sep 2025 15:25:59 -0700 Cong Wang wrote:
> This patch series introduces multikernel architecture support, enabling
> multiple independent kernel instances to coexist and communicate on a
> single physical machine. Each kernel instance can run on dedicated CPU
> cores while sharing the underlying hardware resources.
>
> The multikernel architecture provides several key benefits:
> - Improved fault isolation between different workloads
> - Enhanced security through kernel-level separation
> - Better resource utilization than traditional VM (KVM, Xen etc.)
> - Potential zero-down kernel update with KHO (Kernel Hand Over)
>
Could you illustrate a couple of use cases to help understand your idea?