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xous-core/kernel
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Sean Cross ebe3efc097 kernel: properly zero out pages prior to handing them to userspace 
Until now, we were relying on luck to ensure pages were zeroed.
However, now we properly zero pages in the kernel before handing them
off to userspace.

Signed-off-by: Sean Cross <sean@xobs.io>
2020-03-17 11:35:38 +08:00
..
.cargo initial commit 2020-03-10 12:13:05 +08:00
.vscode initial commit 2020-03-10 12:13:05 +08:00
bin kernel: refactor processes to support banking 2020-03-16 18:22:59 +08:00
src kernel: properly zero out pages prior to handing them to userspace 2020-03-17 11:35:38 +08:00
assemble.ps1 initial commit 2020-03-10 12:13:05 +08:00
assemble.sh initial commit 2020-03-10 12:13:05 +08:00
build.rs initial commit 2020-03-10 12:13:05 +08:00
Cargo.toml kernel: refactor processes to support banking 2020-03-16 18:22:59 +08:00
LICENSE initial commit 2020-03-10 12:13:05 +08:00
link.x initial commit 2020-03-10 12:13:05 +08:00
README.md initial commit 2020-03-10 12:13:05 +08:00

README.md

Xous Kernel

This contains the core kernel for Xous. It requires a stage 1 loader in order to start up, as it assumes the system is already running in Supervisor mode.

Building

To build the kernel, you will need a riscv32 target for Rust. Possible targets include riscv32i-unknown-none-elf, riscv32imac-unknown-none-elf, or riscv32imac-unknown-xous-elf.

  1. Decide what target you want. For simple, embedded systems this could be riscv32i-unknown-none-elf, and for more complex systems with compressed instructions you could use riscv32imac-unknown-none-elf.
  2. Get Rust. Go to https://rustup.rs/ and follow its instructions.
  3. Install the proper toolchain: rustup target add ${target_arch}
  4. Build the kernel: cargo build --release --target ${target_arch}

Using

To use the kernel, you must package it up into an arguments binary with xous-tools.

Testing

TBD

Contribution Guidelines

Contributor Covenant

Please see CONTRIBUTING for details on how to make a contribution.

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide its terms.

License

Copyright © 2020

Licensed under the Apache License 2.0 LICENSE