mirror of
https://github.com/vyos/vyos-build.git
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37 lines
1.5 KiB
Markdown
37 lines
1.5 KiB
Markdown
# About
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VyOS runs on a custom Linux Kernel (which is 4.19) at the time of this writing.
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This repository holds a Jenkins Pipeline which is used to build the Custom
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Kernel (x86_64/amd64 at the moment) and all required out-of tree modules.
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VyOS does not utilize the build in Intel Kernel drivers for its NICs as those
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Kernels sometimes lack features e.g. configurable receive-side-scaling queues.
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On the other hand we ship additional not mainlined features as WireGuard VPN.
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## Kernel
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The Kernel is build from the vanilla repositories hosted at https://git.kernel.org.
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VyOS requires two additional patches to work which are stored in the patches/kernel
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folder.
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### Config
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The Kernel configuration used is [x86_64_vyos_defconfig](x86_64_vyos_defconfig)
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which will be copied on demand during the Pipeline run into the `arch/x86/configs`i
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direcotry of the Kernel source tree.
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Other configurations can be added in the future easily.
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### Modules
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VyOS utilizes several Out-of-Tree modules (e.g. WireGuard, Accel-PPP and Intel
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network interface card drivers). Module source code is retrieved from the
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upstream repository and - when needed - patched so it can be build using this
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pipeline.
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In the past VyOS maintainers had a fork of the Linux Kernel, WireGuard and
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Accel-PPP. This is fine but increases maintenance effort. By utilizing vanilla
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repositories upgrading to new versions is very easy - only the branch/commit/tag
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used when cloning the repository via [Jenkinsfile](Jenkinsfile) needs to be
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adjusted.
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