On 06.11.2025 13:13, Tu Dinh wrote: > On 06/11/2025 13:10, Jan Beulich wrote: >> On 05.11.2025 01:03, Tu Dinh wrote: >>> The LAML field should follow the TCG PFP specification: >>> >>> The TCG ACPI specification uses the field name "Log Area Minimum >>> Length", but the field value is the actual log area length reserved by >>> Platform Firmware, not a lower bound. >> >> And this is said where? Even the field description (ACPI 6.5) reads >> "Identifies >> the minimum length (in bytes) of the system’s preboot CC event log area." (I >> agree it makes little sense that way, but the change still needs proper >> explanation.) > > The above is an exact quote from the "TCG PC Client Platform Firmware > Profile Specification Version 1.06 Revision 52".
Interesting. It didn't become clear to me that this actually is a quotation. Perhaps: The LAML field should follow the TCG PC Client Platform Firmware Profile Specification Version. Version 1.06 Revision 52 says: 'The TCG ACPI specification uses the field name "Log Area Minimum Length", but the field value is the actual log area length reserved by Platform Firmware, not a lower bound.' Remove the now-unused TPM_LOG_AREA_MINIMUM_SIZE. ? Then Acked-by: Jan Beulich <[email protected]> and I could make the adjustment while committing (after 4.21 was branched off, of course). Jan
