> For the x86 architecture, both AMD and Intel processors provide hardware features (named AMD SEV SNP and Intel TDX respectively) to support running virtual machines with memory encryption and integrity protection. They ensure that the data contained within the virtual machine is inaccessible to the hypervisor and hence the infrastructure operator. Support for using these features as a guest virtual machine was introduced in the upstream Linux kernel version 5.19.
[0]: https://news.ycombinator.com/item?id=40157111