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doc: Add sample uefi.its image description file 

This patch adds an example FIT image description file demonstrating
the usage of bootm command to securely launch UEFI binaries.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Cristian Ciocaltea 2019-12-24 18:05:40 +02:00 committed by Heinrich Schuchardt
parent ecc7fdaa9e
commit b533386dc1
1 changed files with 67 additions and 0 deletions
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doc/uImage.FIT/uefi.its Normal file
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/*
* Example FIT image description file demonstrating the usage of the
* bootm command to launch UEFI binaries.
*
* Two boot configurations are available to enable booting GRUB2 on QEMU,
* the former uses a FDT blob contained in the FIT image, while the later
* relies on the FDT provided by the board emulator.
*/
/dts-v1/;
/ {
description = "GRUB2 EFI and QEMU FDT blob";
#address-cells = <1>;
images {
efi-grub {
description = "GRUB EFI Firmware";
data = /incbin/("bootarm.efi");
type = "kernel_noload";
arch = "arm";
os = "efi";
compression = "none";
load = <0x0>;
entry = <0x0>;
hash-1 {
algo = "sha256";
};
};
fdt-qemu {
description = "QEMU DTB";
data = /incbin/("qemu-arm.dtb");
type = "flat_dt";
arch = "arm";
compression = "none";
hash-1 {
algo = "sha256";
};
};
};
configurations {
default = "config-grub-fdt";
config-grub-fdt {
description = "GRUB EFI Boot w/ FDT";
kernel = "efi-grub";
fdt = "fdt-qemu";
signature-1 {
algo = "sha256,rsa2048";
key-name-hint = "dev";
sign-images = "kernel", "fdt";
};
};
config-grub-nofdt {
description = "GRUB EFI Boot w/o FDT";
kernel = "efi-grub";
signature-1 {
algo = "sha256,rsa2048";
key-name-hint = "dev";
sign-images = "kernel";
};
};
};
};