u-boot/doc/usage/fit/multi-with-loadables.rst
Sean Anderson 291ab91935 doc: Replace examples of MD5 and SHA1 with SHA256
Both SHA1 and (especially) MD5 are no longer as safe as they once were for
cryptographic use. Replaces examples which use them with examples using
SHA256 instead. This will provide more-secure defaults for users who use
documentation examples as a base for their own use. This is not too
necessary for non-verified-boot scenarios (since someone could just replace
the checksum), but I wanted to be complete.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2023-12-17 13:06:48 +01:00

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2.5 KiB
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.. SPDX-License-Identifier: GPL-2.0+
Multiple kernels, ramdisks and FDT blobs with Xen
=================================================
This example makes use of the 'loadables' field::
/dts-v1/;
/ {
description = "Configuration to load a Xen Kernel";
#address-cells = <1>;
images {
xen_kernel {
description = "xen binary";
data = /incbin/("./xen");
type = "kernel";
arch = "arm";
os = "linux";
compression = "none";
load = <0xa0000000>;
entry = <0xa0000000>;
hash-1 {
algo = "sha256";
};
};
fdt-1 {
description = "xexpress-ca15 tree blob";
data = /incbin/("./vexpress-v2p-ca15-tc1.dtb");
type = "flat_dt";
arch = "arm";
compression = "none";
load = <0xb0000000>;
hash-1 {
algo = "sha256";
};
};
fdt-2 {
description = "xexpress-ca15 tree blob";
data = /incbin/("./vexpress-v2p-ca15-tc1.dtb");
type = "flat_dt";
arch = "arm";
compression = "none";
load = <0xb0400000>;
hash-1 {
algo = "sha256";
};
};
linux_kernel {
description = "Linux Image";
data = /incbin/("./Image");
type = "kernel";
arch = "arm";
os = "linux";
compression = "none";
load = <0xa0000000>;
entry = <0xa0000000>;
hash-1 {
algo = "sha256";
};
};
};
configurations {
default = "config-2";
config-1 {
description = "Just plain Linux";
kernel = "linux_kernel";
fdt = "fdt-1";
};
config-2 {
description = "Xen one loadable";
kernel = "xen_kernel";
fdt = "fdt-1";
loadables = "linux_kernel";
};
config-3 {
description = "Xen two loadables";
kernel = "xen_kernel";
fdt = "fdt-1";
loadables = "linux_kernel", "fdt-2";
};
};
};