Size of trusted application in OP-TEE?

[andib]

Hello,
I have followed the instructions to setup OP-TEE on my Jetson AGX Orin Devkit. How much memory can a trusted application take at max? According to the FAQ of OP-TEE, 30MB are reserved for the OP-TEE, but they take vexpress as an example. Just to make sure: Do I also have 30MB of space for trusted applications on the Jetson AGX Orin or is there another size? Can I find it out somewhere?

[JerryChang]

hello andib,

please refer to TZDRAM for software carveout,
for example, tegra234-mb1-bct-carveout-common.dtsi

                        aux_info@CARVEOUT_TZDRAM {
                                pref_base = <0x0 0x0>;
                                size = <0x0 0x4000000>; // 64MB
                                alignment = <0x0 0x200000>; // 2MB
                        };