config SEV_GUEST tristate "AMD SEV Guest driver" default m depends on AMD_MEM_ENCRYPT select CRYPTO_LIB_AESGCM select TSM_REPORTS help SEV-SNP firmware provides the guest a mechanism to communicate with the PSP without risk from a malicious hypervisor who wishes to read, alter, drop or replay the messages sent. The driver provides userspace interface to communicate with the PSP to request the attestation report and more. If you choose 'M' here, this module will be called sev-guest.