How Can I jump from EL1 to EL0 in bare metal environment

Awax

Hello,

I am working with a port of FreeRTOS on Arm64 soc , which is running at EL1, my goal is to perform a function call that will execute in EL0,

I have come to understand that the only way for the EL switch is to set the correct M bits of the spsr_el1…

Answered

Assemble a native ARMv8 library, and call Android Java methods from its procedures invoked by an Android App, using the JNI conventions.

Myy

Purpose

This document demonstrates how to :

write functions (procedures), using the ARMv8 64-bit Gnu AS syntax, that will use the JNI library to call back Java functions from the Android app that called them
assemble these procedures into a native library…

Semihalf ARM blog #2: Dead board and stack growth

Rafal Jaworowski

We’d like to welcome all of you and describe few interesting issues we encounter during our work with ARMv8 and FreeBSD. In this cycle it is planned to talk a little about various bugs found in the kernel and the ways how they were resolved.

Exception…

over 4 years ago
Processors
Processors blog