Hello everyone

I am in the process of porting EDK2 to a Quad core Aarch64 based SOC.

The SOC has a built-in BootROM running in EL3. When the BootROM completes loading

The image it transfers control to the loaded image in EL3 to allow installing a secure monitor

Since we have an on chip primary loader (i.e. BootROM) I used the 2^nd stage template as a basis for my port

So in my flow BootROM loads FD image to main memory and jumps to the entry point in EL3

I quickly found out however that EDK2 expects to be executed in EL2 or EL1.

It was a bit surprising actually. I expected EDK2 to also act is a secure monitor and handle the PSCI calls as well.

I guess I am missing something in the functional partition.

To get to the point I would like to ask;

- Who handles PSCI in Juno. I noticed the existence of ATF binaries such as bl0 and bl3 under Juno. Does it mean Juno works with combination of ATF and EDK2 ?

- Is there a simple way to switch to EL2 using EDK2 packages. I guess the Sec part is supposed to do that, right ?

Thanks

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Yehuda Yitschak

Marvell Semiconductor Ltd.