u-boot/lib/efi_loader/Kconfig
Simon Glass 58ad86288f x86: Enable EFI loader support
Enable this so that EFI applications (notably grub) can be run under U-Boot
on x86 platforms.

At present the 'hello world' EFI application is not supported for the
qemu-x86_efi_payload64 board. That board builds a payload consisting of a
64-bit header and a 32-bit U-Boot, which is incompatible with the way the
EFI loader builds its EFI application. The following error is obtained:

x86_64-linux-ld.bfd: i386 architecture of input file
   `lib/efi_loader/helloworld.o' is incompatible with i386:x86-64 output

This could be corrected with additional Makefile rules. For now, this
feature is disabled for that board.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[agraf: drop hello kconfig bits]
Signed-off-by: Alexander Graf <agraf@suse.de>
2016-11-14 23:24:04 +01:00

18 lines
681 B
Text

config EFI_LOADER
bool "Support running EFI Applications in U-Boot"
depends on (ARM || X86) && OF_LIBFDT
default y
help
Select this option if you want to run EFI applications (like grub2)
on top of U-Boot. If this option is enabled, U-Boot will expose EFI
interfaces to a loaded EFI application, enabling it to reuse U-Boot's
device drivers.
config EFI_LOADER_BOUNCE_BUFFER
bool "EFI Applications use bounce buffers for DMA operations"
depends on EFI_LOADER && ARM64
default n
help
Some hardware does not support DMA to full 64bit addresses. For this
hardware we can create a bounce buffer so that payloads don't have to
worry about platform details.