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u-boot/lib/efi_loader/Kconfig

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efi_loader: hook up in build environment Now that we have all the bits and pieces ready for EFI payload loading support, hook them up in Makefiles and KConfigs so that we can build. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> [trini: Enable only when we of OF_LIBFDT, disable on kwb and colibri_pxa270] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-03-04 00:10:07 +00:00
config EFI_LOADER
bool "Support running EFI Applications in U-Boot"
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>
2016-11-07 15:47:16 +00:00
depends on (ARM || X86) && OF_LIBFDT
efi_loader: hook up in build environment Now that we have all the bits and pieces ready for EFI payload loading support, hook them up in Makefiles and KConfigs so that we can build. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> [trini: Enable only when we of OF_LIBFDT, disable on kwb and colibri_pxa270] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-03-04 00:10:07 +00:00
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.
efi_loader: Add bounce buffer support Some hardware that is supported by U-Boot can not handle DMA above 32bits. For these systems, we need to come up with a way to expose the disk interface in a safe way. This patch implements EFI specific bounce buffers. For non-EFI cases, this apparently was no issue so far, since we can just define our environment variables conveniently. Signed-off-by: Alexander Graf <agraf@suse.de>
2016-05-11 16:25:48 +00:00
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.
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