[PATCH v3 1/5] image: Add IH_OS_EFI for EFI chain-load boot

[Heinrich Schuchardt]

On 12/17/19 8:46 AM, Cristian Ciocaltea wrote:
> Add a new OS type to be used for chain-loading an EFI compatible
> firmware or boot loader like GRUB2, possibly in a verified boot
> scenario.
>
> Bellow is sample ITS file that generates a FIT image supporting
> secure boot. Please note the presence of 'os = "efi";' line, which
> identifies the currently introduced OS type:
>
> / {
>      #address-cells = <1>;
>
>      images {
>          efi-grub {
>              description = "GRUB EFI";
>              data = /incbin/("bootarm.efi");
>              type = "kernel_noload";
>              arch = "arm";
>              os = "efi";
>              compression = "none";
>              load = <0x0>;
>              entry = <0x0>;
>              hash-1 {
>                  algo = "sha256";
>              };
>          };
>      };
>
>      configurations {
>          default = "config-grub";
>          config-grub {
>              kernel = "efi-grub";
>              signature-1 {
>                  algo = "sha256,rsa2048";
>                  sign-images = "kernel";
>              };
>          };
>      };
> };
>
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at gmail.com>

Reviewed-by: Heinrich Schuchardt <xypron.glpk at gmx.de>