efi_loader: detach runtime in ExitBootServices()

[oweals/u-boot.git] / doc / README.uefi

diff --git a/doc/README.uefi b/doc/README.uefi
index b38efbc0cc3319b87ee33f4e01a290caa4774bd2..1d1039a6ae75bc402889ebc8f2f6f79732a020aa 100644 (file)
--- a/doc/README.uefi
+++ b/doc/README.uefi
@@ -12,6 +12,17 @@ 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 requirements described
+in the "Embedded Base Boot Requirements (EBBR) Specification - Release v1.0"
+[4]. The "Server Base Boot Requirements System Software on ARM Platforms" [5]
+describes a superset of the EBBR specification and may be used as further
+reference.
+
+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
@@ -335,3 +346,7 @@ This driver is only available if U-Boot is configured with
   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://github.com/ARM-software/ebbr/releases/download/v1.0/ebbr-v1.0.pdf)
+  Embedded Base Boot Requirements (EBBR) Specification - Release v1.0
+* [5](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