On Wed, Jan 13, 2021 at 04:47:00PM +0530, Sumit Garg wrote:
Hi Jarkko,
On Mon, 11 Jan 2021 at 22:05, Jarkko Sakkinen jarkko@kernel.org wrote:
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@linaro.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.
I would rather suggest you to follow steps listed here [1] as to test this feature on Qemu aarch64 we need to build firmwares such as TF-A, OP-TEE, UEFI etc. which are all integrated into OP-TEE Qemu build system [2]. And then it would be easier to migrate them to your buildroot environment as well.
[1] https://lists.trustedfirmware.org/pipermail/op-tee/2020-May/000027.html [2] https://optee.readthedocs.io/en/latest/building/devices/qemu.html#qemu-v8
-Sumit
Can you provide 'keyctl_change'? Otherwise, the steps are easy to follow.
After I've successfully tested 2/4, I'd suggest that you roll out one more version and CC the documentation patch to Elaine and Mini, and clearly remark in the commit message that TEE is a standard, with a link to the specification.
/Jarkko