I get the message in the title in dmesg. SEV-ES is enabled, but SNPs are not.
The BIOS does not appear to have any option regarding the reverse map table. The BIOS version is 2.0.3.
The installed kernel is the one from the snp branch, 5.11.0-rc3-sev-es-snp.
The server is an AMD EPYC 7543 32-Core Processor.
OS is a Debian 10.
What could this be?