Messages in this thread | | | Date | Fri, 29 Dec 2017 08:50:10 +0800 | From | Peng Fan <> | Subject | Re: [PATCH 2/2] ARM: multi_v7_defconfig: Enable OP-TEE |
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On Thu, Dec 28, 2017 at 02:03:01PM +0100, Krzysztof Kozlowski wrote: >On Thu, Dec 28, 2017 at 10:34 AM, Peng Fan <peng.fan@nxp.com> wrote: >> Enable OP-TEE for multi_v7_defconfig > >Why? You essentially copied here the subject of patch. That is not enough.
This patch could be dropped. Previously, I could not select OP-TEE in imx_v6_v7_defconfig, seems things changed. I'll move this to imx_v6_v7_defconfig.
OP-TEE stands for Open Portable Trusted Execution Environment. With Linux running in trustzone nonsecure world, OP-TEE runs in secure world, with TEE/OP-TEE driver enabled, linux could use secure services provided by OP-TEE. With TEE/OP-TEE options selected, we could use the following node to let the driver probed. " firmware { optee { compatible = "linaro,optee-tz"; method = "smc"; }; }; "
Thanks, Peng. > >Best regards, >Krzysztof
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