SMBIOS OEM strings are host-controlled and normally distrusted by PID1 in confidential VMs. Under TDX, however, the SMBIOS table (including Type 11) is measured into RTMR0 by the firmware (TDVF), so a remote verifier can detect host tampering with credentials delivered this way. Accept them there, while keeping fw_cfg distrusted as those items are not measured even on TDX. This lets systemd-vmspawn deliver credentials to TDX guests via the normal SMBIOS path, unlike SNP which requires the initrd cpio channel. Signed-off-by: Paul Meyer <katexochen0@gmail.com>
System and Service Manager
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