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xous-core/kernel
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Sean Cross 9c5cb3da32 kernel: properly share pages between processes 
This improves page sharing.  Permissions are retained during sharing,
and we should now be able to share multiple pages.  Additionally, this
lays the groundwork for mutable sharing.

Signed-off-by: Sean Cross <sean@xobs.io>
2020-04-03 12:28:44 +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: make contexts first-class 2020-03-27 12:30:29 +08:00
src kernel: properly share pages between processes 2020-04-03 12:28:44 +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 MemoryRange: move to using this struct for memory ranges 2020-04-01 10:28:36 +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