On 06.07.18 14:57, Grant Likely wrote: > Dong, > > Looking at the current state of EBBR, Appendix A contains a big list of > boot/runtime services and protocols that are required to be implemented. > However, I don't think this list has been audited, and I'm not sure how > much of it is actually needed. Some of these things (like the list of > boot/runtime services) seem to be required by the UEFI spec, so it is > redundant to list them here. > > I'm also unsure on the list of protocols. Some I'm sure are already > required by the UEFI spec. e.g., UEFI section 2.6.1 requires > EFI_LOADED_IMAGE_PROTOCOL, EFI_LOADED_IMAGE_DEVICE_PATH, > EFI_DEVICE_PATH_PROTOCOL, EFI_DECOMPRESS_PROTOCOL, and > EFI_DEVICE_PATH_UTILITIES_PROTOCOL, so is it necessary to list them in > EBBR? > > Looking at the current U-Boot implementation, only the following > protocols are implemented: > > include/efi_api.h|277| #define LOADED_IMAGE_PROTOCOL_GUID \ > include/efi_api.h|519| #define EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID \ > include/efi_api.h|590| #define EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID \ > include/efi_api.h|603| #define EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID \ > include/efi_api.h|619| #define EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID \ > include/efi_api.h|853| #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \ > include/efi_api.h|882| #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \ > include/efi_api.h|933| #define EFI_DRIVER_BINDING_PROTOCOL_GUID \
I think this list is missing a few protocols we do implement. Here's a list of the current efi-next tree: $ git grep -e '^const efi_gui' lib/efi_loader | cut -d ' ' -f 3 efi_guid_fdt efi_guid_driver_binding_protocol efi_guid_event_group_exit_boot_services efi_guid_event_group_virtual_address_change efi_guid_event_group_memory_map_change efi_guid_event_group_ready_to_boot efi_guid_event_group_reset_system efi_guid_text_output_protocol efi_guid_text_input_protocol efi_guid_device_path_to_text_protocol efi_guid_device_path_utilities_protocol efi_block_io_guid efi_file_system_info_guid efi_global_variable_guid efi_guid_device_path efi_guid_loaded_image efi_simple_file_system_protocol_guid efi_file_info_guid Alex _______________________________________________ boot-architecture mailing list [email protected] https://lists.linaro.org/mailman/listinfo/boot-architecture
