Firmware handoff specification

Contents

• Introduction
  • Platform initialisation stages
• Transfer list
  • Transfer list requirements
  • Transfer list header
  • TL entry header
  • Standard operations
    • Validating a TL header
    • Reading a TL
    • Adding a new TE
    • Adding a new TE with special data alignment requirement
    • Creating a TL
    • Relocating a TL
  • Entry type allocation
  • Standard transfer entries
    • Empty entry layout (XFERLIST_VOID)
    • FDT entry layout (XFERLIST_FDT)
    • HOB block entry layout (XFERLIST_HOB_B)
    • HOB list entry layout (XFERLIST_HOB_L)
    • ACPI table aggregate entry layout (XFERLIST_ACPI_AGGR)
• Register usage at handoff boundary
  • Arm Architecture bindings
    • AArch64 Receiver
    • AArch32 Receiver