The latest patches to DynamicTablesPkg help generate an SSDT to meet the SBBR specification when an SPCR generation is desired.
DynamicTablesPkg is useful for the non-SBBR compliant target to support the ACPI table generation, but this auto-generated SSDT might be unable to describe a compatible but custom 16650 device.
I wonder if this SSDT generation can be manageable when a user doesn't want to.