Re: [PATCH -v2 0/7] module: Strict per-modname namespaces

Peter Zijlstra
2025-05-02T12:56:50Z

On Fri, May 02, 2025 at 11:55:54AM +0000, Roy, Patrick wrote:
> Hi Peter,
>
> Are you still working on this patch series? I'm working on having KVM remove
> virtual machine memory from the kernel's direct map, to harden again
> speculative execution attacks [1]. At David H.'s LSF/MM/BPF task on
> guest_memfd, it was suggested to use per-modname namespaces to export
> set_direct_map_valid() specifically for use in KVM to achieve this.
>
> Is there anything I can do to help get this across the finish line
> (testing/etc.)?

Hmm, I had more or less forgotten about this.

Let me rebase and address the comments.