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.)?

Best,
Patrick

[1]: https://lore.kernel.org/kvm/20250221160728.1584559-1-roypat@amazon.co.uk/

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.