Re: [PATCH v3 04/70] HostMem: Add mechanism to opt in kvm guest memfd via MachineState

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On 15.11.23 08:14, Xiaoyao Li wrote:
Add a new member "require_guest_memfd" to memory backends. When it's set
to true, it enables RAM_GUEST_MEMFD in ram_flags, thus private kvm
guest_memfd will be allocated during RAMBlock allocation.

Memory backend's @require_guest_memfd is wired with @require_guest_memfd
field of MachineState. MachineState::require_guest_memfd is supposed to
be set by any VMs that requires KVM guest memfd as private memory, e.g.,
TDX VM.

Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>

I'm confused, why do we need this if it's going to be the same for all memory backends right now?

--
Cheers,

David / dhildenb





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