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From: Albert Schwarzkopf <a.schwarzkopf@phytec.de>
To: barebox@lists.infradead.org
Subject: [PATCH 0/1] bootm: Allow loading OP-TEE from FIT image
Date: Tue, 15 Sep 2020 15:36:29 +0200	[thread overview]
Message-ID: <20200915133630.32511-1-a.schwarzkopf@phytec.de> (raw)

This allows loading OP-TEE binaries from FIT images. The main benefit
from this approach comes from the fact that FIT images can be signed
and therefore it can be ensured that the TEE binary is not malicious.

A shortened .its file to make use of this patch might look like this: 

images {
...
tee@1 {
	description = "OP-TEE trusted OS";
	data = /incbin/("...");
	type = "tee";
	arch = "arm";
	compression = "none";
	hash@1 {
		algo = "sha256";
	};
	};
};

configurations {
default = "config-1";
config-1 {
	description = "...";
	kernel = "kernel@1";
	fdt = "fdt@1;
	tee = "tee@1";

	signature-1 {
				algo = "sha256,rsa4096";
				key-name-hint = "FIT-4096";
				sign-images = "kernel", "fdt", "tee";
			};
}

Best regards,
Albert

Albert Schwarzkopf (1):
  bootm: Allow loading OP-TEE from FIT image

 arch/arm/lib32/bootm.c | 44 +++++++++++++++++++++++++++++++++++++-----
 1 file changed, 39 insertions(+), 5 deletions(-)

-- 
2.17.1


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             reply	other threads:[~2020-09-15 13:36 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-15 13:36 Albert Schwarzkopf [this message]
2020-09-15 13:36 ` [PATCH 1/1] " Albert Schwarzkopf
2020-09-18  9:42   ` Sascha Hauer

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