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Diffstat (limited to 'doc/README.uefi')
| -rw-r--r-- | doc/README.uefi | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/doc/README.uefi b/doc/README.uefi index 0982fad92e..66b6abece5 100644 --- a/doc/README.uefi +++ b/doc/README.uefi @@ -12,6 +12,15 @@ the interaction of drivers and applications with the firmware. The API comprises access to block storage, network, and console to name a few. The Linux kernel and boot loaders like GRUB or the FreeBSD loader can be executed. +## Development target + +The implementation of UEFI in U-Boot strives to reach the minimum requirements +described in "Server Base Boot Requirements System Software on ARM Platforms - +Version 1.1" [4]. + +A full blown UEFI implementation would contradict the U-Boot design principle +"keep it small". + ## Building for UEFI The UEFI standard supports only little-endian systems. The UEFI support can be @@ -299,7 +308,7 @@ This driver is only available if U-Boot is configured with CONFIG_BLK=y CONFIG_PARTITIONS=y -## TODOs as of U-Boot 2018.07 +## TODOs as of U-Boot 2019.04 * unimplemented or incompletely implemented boot services * Exit - call unload function, unload applications only @@ -308,16 +317,13 @@ This driver is only available if U-Boot is configured with * unimplemented or incompletely implemented runtime services * SetVariable() ignores attribute EFI_VARIABLE_APPEND_WRITE - * GetNextVariableName is not implemented * QueryVariableInfo is not implemented * unimplemented events * EVT_RUNTIME * EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE - * event groups * data model - * manage events in a linked list * manage configuration tables in a linked list * UEFI drivers @@ -329,9 +335,14 @@ This driver is only available if U-Boot is configured with * persistence * runtime support +* incompletely implemented protocols + * support version 0x00020000 of the EFI file protocol + ## Links * [1](http://uefi.org/specifications) http://uefi.org/specifications - UEFI specifications * [2](./driver-model/README.txt) doc/driver-model/README.txt - Driver model * [3](./README.iscsi) doc/README.iscsi - iSCSI booting with U-Boot and iPXE +* [4](https://developer.arm.com/docs/den0044/latest/server-base-boot-requirements-system-software-on-arm-platforms-version-11) + Server Base Boot Requirements System Software on ARM Platforms - Version 1.1 |