Attest to an SEV SNP Virtual Machine.

Runtime data are a conduit for any information defined by the Trusted Execution Environment (TEE) when actually running.

Initialization time data are a conduit for any configuration information that is unknown when building the Trusted Execution Environment (TEE) and is defined at TEE launch time. This data can be used with confidential container or VM scenarios to capture configuration settings such as disk volume content, network configuration, etc.