Sarathy Jayakumar - Sivagar Natarajan - Passing System Configuration Data from Firmware to Kernel from uefi bios software Watch Video

⏲ Duration: 14 min 58 sec
✓ Published: 27-Jun-2022

Description:
Firmware relies on intimate system knowledge for memory initialization and training. However, there is currently no standard method for passing this data to the operating system. The OS kernel and other monitor software relies on platform-specific drivers, but these are often based on proprietary tables using confidential information.nnIntel currently publishes a proprietary BIOS ACPI Data Table (BDAT) to convey system data, such as DDR4/DDR5 training margins. This session proposes moving this d