linux-kernel - Re: [PATCH v8 2/4] KEYS: trusted: Introduce TEE based Trusted Keys

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Date:   Mon, 11 Jan 2021 18:35:03 +0200
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Sumit Garg <sumit.garg@...aro.org>
Cc:     jarkko.sakkinen@...ux.intel.com, zohar@...ux.ibm.com,
        jejb@...ux.ibm.com, dhowells@...hat.com, jens.wiklander@...aro.org,
        corbet@....net, jmorris@...ei.org, serge@...lyn.com,
        casey@...aufler-ca.com, janne.karhunen@...il.com,
        daniel.thompson@...aro.org, Markus.Wamser@...ed-mode.de,
        lhinds@...hat.com, keyrings@...r.kernel.org,
        linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        op-tee@...ts.trustedfirmware.org
Subject: Re: [PATCH v8 2/4] KEYS: trusted: Introduce TEE based Trusted Keys

On Tue, Nov 03, 2020 at 09:31:44PM +0530, Sumit Garg wrote:
> Add support for TEE based trusted keys where TEE provides the functionality
> to seal and unseal trusted keys using hardware unique key.
> 
> Refer to Documentation/tee.txt for detailed information about TEE.
> 
> Signed-off-by: Sumit Garg <sumit.garg@...aro.org>

I haven't yet got QEMU environment working with aarch64, this produces
just a blank screen:

./output/host/usr/bin/qemu-system-aarch64 -M virt -cpu cortex-a53 -smp 1 -kernel output/images/Image -initrd output/images/rootfs.cpio -serial stdio

My BuildRoot fork for TPM and keyring testing is located over here:

https://git.kernel.org/pub/scm/linux/kernel/git/jarkko/buildroot-tpmdd.git/

The "ARM version" is at this point in aarch64 branch. Over time I will
define tpmdd-x86_64 and tpmdd-aarch64 boards and everything will be then
in the master branch.

To create identical images you just need to

$ make tpmdd_defconfig && make

Can you check if you see anything obviously wrong? I'm eager to test this
patch set, and in bigger picture I really need to have ready to run
aarch64 environment available.

/Jarkko