Fedora has near zero additional patches, so it pretty much depends on how mainline merges stuff. If SEV-SNP or TDX or both will land in an upstream release before support for unaccepted memory lands too you'll
Sorry, just saw this...
SEV-SNP guest support has already landed upstream and is part of the 5.19 kernel. So without this interface, anyone using a newer OVMF with a 5.19 to whatever kernel just before unaccepted memory finally gets pulled into, would have issues.
Also, just to reiterate: my whinging about this has been purely TDX-specific. It's a bit of a shame that things happened in this order, but SEV-SNP does seem to have a legitimate need here, separate from TDX.
