Skip to content

Commit

Permalink
initial commit
Browse files Browse the repository at this point in the history
  • Loading branch information
slp committed May 7, 2024
0 parents commit 298c3e9
Show file tree
Hide file tree
Showing 3 changed files with 60 additions and 0 deletions.
1 change: 1 addition & 0 deletions CODEOWNERS
Validating CODEOWNERS rules …
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
* @slp @teohhanhui
21 changes: 21 additions & 0 deletions LICENSE
Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
MIT License

Copyright (c) 2024 Sergio Lopez

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
38 changes: 38 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,38 @@
# krun - run programs from your system in a microVM

`krun` allows you to run arbitrary programs from your system in a microVM. It's comprised of two small programs:

- `krun`: links against [libkrun](https://github.com/containers/libkrun) to create the microVM.

- `krun-guest`: acts as an entrypoint inside the microVM to set up the environment for running your program.

## Using

``` sh

Usage: krun [OPTIONS] COMMAND [COMMAND_ARGS...]
OPTIONS:
-h --help Show help
--net=NET_MODE Set network mode
--passt-socket=PATH Instead of starting passt, connect to passt socket at PATHNET_MODE can be either TSI (default) or PASST

COMMAND: the command you want to execute in the vm
COMMAND_ARGS: arguments of COMMAND

```

## Running graphical applications

If [sommelier](https://chromium.googlesource.com/chromiumos/platform2/+/master/vm_tools/sommelier) is installed in your system, `krun` will use it to connect to the Wayland session on the hosts, allowing you to run graphical applications in the microVM.

GPU acceleration is also enabled on systems supporting [DRM native context](https://indico.freedesktop.org/event/2/contributions/53/attachments/76/121/XDC2022_%20virtgpu%20drm%20native%20context.pdf) (freedreno, amdgpu, asahi).

## Running x86/x86_64 on aarch64

If [FEX-Emu](https://fex-emu.com/) is installed in your system, `krun` will configure `binfmt_misc` inside the microVM so x86/x86_64 programs can be run transparently on it.

## Motivation

This tool is mainly intended to enable users to easily run programs designed for 4K-page systems on systems with a different page size, with [Asahi Linux](https://asahilinux.org/) being the prime example of this use case.

Other potential use cases could be software isolation, accessing privileged kernel features (provided by the guest) or local testing.

0 comments on commit 298c3e9

Please sign in to comment.