# Re: \[PATCH v12 09/45\] KVM: guest\_memfd: Stub in ability to enable in-place shared\<=\>private conversion

- From: David Hildenbrand (Arm) \<david@kernel.org\>
- Date: 2026-09-09 16:01:50 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2026/09/17540806
- Thread: https://ratatoskr.run/kvm/2026/08/17480489/t/2.md

```text
On 8/31/26 02:25, Ackerley Tng via B4 Relay wrote:
> From: Sean Christopherson <seanjc@google.com>
> 
> Stub in global variable to enable in-place guest_memfd private<=>shared
> memory conversion, which will eventually be exposed to userspace via a
> module param, and wire up the __kvm_is_private_gfn() static call to the
> guest_memfd version when in-place conversion is enabled, i.e. when gmem is
> the sole authority on private vs. shared memory.
> 
> Cc: Fuad Tabba <redacted>
> Cc: Xiaoyao Li <redacted>
> Signed-off-by: Sean Christopherson <seanjc@google.com>
> Co-developed-by: Ackerley Tng <redacted>
> Signed-off-by: Ackerley Tng <redacted>
> ---

Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>

-- 
Cheers,

David
```