Re: [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.ciocal...@gmail.com>

Reviewed-by: Heinrich Schuchardt <xypron.g...@gmx.de>