The Boot and Runtime Services (BRS) specification provides the software requirements for system vendors and Operating System Vendors (OSVs) to interoperate with one another by providing expectations for the Operating System (OS) to utilize in acts of device discovery, system management, and other rich operations provided in this specification.
When the system has IOMMU, RIMT table is required. Add it to additional tables required.
RIMT spec will be maintained by RVI (https://github.com/riscv-non-isa/riscv-acpi-rimt) and is planned to be ratified by end of 2024.