From 32151d40172870e7772b1a393935001979a01aea Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Tue, 12 Jun 2018 08:36:18 -0700 Subject: x86: Add generic EFI payload support It is possible to create a generic EFI payload for all x86 boards. The payload is configured to include as many generic drivers as possible. All stuff that touches low-level initialization are not allowed as such is the EFI BIOS's responsibility. Platform specific drivers (like gpio, spi, etc) are not included. Signed-off-by: Bin Meng Reviewed-by: Simon Glass --- doc/README.u-boot_on_efi | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) (limited to 'doc') diff --git a/doc/README.u-boot_on_efi b/doc/README.u-boot_on_efi index 0349c5663a..8fba112e11 100644 --- a/doc/README.u-boot_on_efi +++ b/doc/README.u-boot_on_efi @@ -71,12 +71,13 @@ Just build U-Boot as normal, e.g. make efi-x86_defconfig make -To build U-Boot as an EFI payload (32-bit or 64-bit EFI can be used), adjust an -existing config (like qemu-x86_defconfig) to enable CONFIG_EFI, CONFIG_EFI_STUB -and either CONFIG_EFI_STUB_32BIT or CONFIG_EFI_STUB_64BIT. All of these are -boolean Kconfig options. Then build U-Boot as normal, e.g. +To build U-Boot as an EFI payload (32-bit or 64-bit EFI can be used), enable +CONFIG_EFI, CONFIG_EFI_STUB, and select either CONFIG_EFI_STUB_32BIT or +CONFIG_EFI_STUB_64BIT. The efi-x86_payload configs (efi-x86_payload32_defconfig +and efi-x86_payload32_defconfig) are set up for this. Then build U-Boot as +normal, e.g. - make qemu-x86_defconfig + make efi-x86_payload32_defconfig (or efi-x86_payload64_defconfig) make You will end up with one of these files depending on what you build for: @@ -211,11 +212,6 @@ Future work ----------- This work could be extended in a number of ways: -- Add a generic x86 EFI payload configuration. At present you need to modify -an existing one, but mostly the low-level x86 code is disabled when booting -on EFI anyway, so a generic 'EFI' board could be created with a suitable set -of drivers enabled. - - Add ARM support - Add 64-bit application support @@ -241,6 +237,9 @@ arch/x86/cpu/efi board/efi/efi-x86/efi.c x86 board code for running as an EFI application +board/efi/efi-x86_payload + generic x86 EFI payload board support code + common/cmd_efi.c the 'efi' command -- cgit