As was anticipated, UEFI Unaccepted Memory support was successfully merged for Linux 6.5 to support this standard that's important with the likes of Intel Trusted Domain Extensions (TDX) and AMD Secure Encrypted Virtualization Secure Nested Page (SEV-SNP) backed virtual machines.
Cloud Hypervisor has advanced quite nicely in the half-year it's been around since Intel software engineers began writing this Rust-based cloud-focused virtualization hypervisor