Re: [PATCH v17 15/24] KVM: x86/mmu: Extend guest_memfd's max mapping level to shared mappings

[David Hildenbrand]

On 30.07.25 00:54, Sean Christopherson wrote:
> Rework kvm_mmu_max_mapping_level() to consult guest_memfd for all mappings,
> not just private mappings, so that hugepage support plays nice with the
> upcoming support for backing non-private memory with guest_memfd.
>
> In addition to getting the max order from guest_memfd for gmem-only
> memslots, update TDX's hook to effectively ignore shared mappings, as TDX's
> restrictions on page size only apply to Secure EPT mappings.  Do nothing
> for SNP, as RMP restrictions apply to both private and shared memory.
>
> Suggested-by: Ackerley Tng <ackerleytng@xxxxxxxxxx>
> Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
> ---

Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>

--
Cheers,

David / dhildenb