Outreach Program Projects: Difference between revisions
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=== Xen Hypervisor Userspace Tools === |
=== Xen Hypervisor Userspace Tools === |
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{{project |
{{project |
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|Project=golang |
|Project=golang consumer for the `xenlight` golang package |
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|Date=02/11/2016 |
|Date=02/11/2016 |
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|Verified=16/1/2019 |
|Verified=16/1/2019 |
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|Contact=George Dunlap <george.dunlap@citrix.com>; make sure you CC xen-devel@lists.xenproject.org on all communications; tag mails with [GSoC] or [Outreachy] as appropriate |
|Contact=George Dunlap <george.dunlap@citrix.com>; make sure you CC xen-devel@lists.xenproject.org on all communications; tag mails with [GSoC] or [Outreachy] as appropriate |
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|Difficulty=Straightforward |
|Difficulty=Straightforward |
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|Skills=Familiarity with |
|Skills=Familiarity with the Go language |
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|Desc=The `xenlight` golang package consists of golang bindings for libxl, a robust library designed to be able to drive all necessary interaction with a Xen system; it's the library on which both xl and libvirt-xen are written. |
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|Desc=libxl is a robust library designed to be able to drive all necessary interaction with a Xen system; it's the library on which both xl and libvirt-xen are written. The Go programming language (http://www.golang.org) is a modern language spawned out of Google that aims to be a useful, small, typed language for user-level systems programming. As such, it is an obvious choice to write a control daemon or other system on top of libxl. A very rudimentary implementation was done by a previous outreach program participant; this would be carrying on that work. [https://xenproject.atlassian.net/browse/XEN-111 XEN-111] provides a list of function prototypes in libxl.h which have already been implemented. For those which have not been, these are listed in order of usefulness. |
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The golang bindings are nearing completion, and so this project would be to create an in-tree consumer of those bindings; partly as an example, partly to be useful. Ideas include: |
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The final goal of this work (which is more than a single internship or project) is to have a complete set of Go language bindings for libxl, along with a test suite to make sure that the interface works and is useable (as well as to serve as a template). One project / intership's worth of work would include implementing domain creation, and writing tools to automatically generate some Golang code from libxl's IDL. |
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|Outcomes=Extending the golang bindings to allow creation and manipulation of basic domains. Code to generate data structures from the libxl IDL rather than by hand. |
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* A simple `host status` daemon which would present information about the host: memory available, domains running, and so on |
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* A 'system stress tester', which would perform random operations (create / destroy / migrate / suspend VMs, create / destroy / migrate cpupools, &c) in quick succession to test the robustness of the system |
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* A re-implementation of the 'xl' command in Golang, suitable to be used as a drop-in replacement in our test system |
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* A 'wrapper' library to make creation of guests simple and straightforward, with a minimum of boilerplate |
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Applicants are encouraged to come up with their own ideas as well. |
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|Outcomes=A useful project or library which exercises and demonstrates how to use the `xenlight` golang package. |
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|GSoC=yes |
|GSoC=yes |
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}} |
}} |
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Revision as of 11:44, 28 January 2020
The Xen Project is a Linux Foundation collaborative project that develops the
- Xen Hypervisor (for x86 and ARM) - the bulk of this page. IRC channel #xendevel
- Unikraft (see #Unikraft). IRC channel #unikraft
- Mirage OS (see #Mirage_OS). IRC channel #mirage
- We also have some infrastructure, tooling and community related projects that run across all the sub-projects. These are slightly different from other projects, in terms of skills: see #Infra_and_Community
The project also has excellent relationships with its upstreams (Linux Kernel, the BSDs, QEMU and other projects) and upstreams such as Linux distributions. This is reflected in the project list, which contains many interesting cross-project development projects for applicants.
Finding a project that fits you
This page lists Xen Project development projects for Google Summer of Code and Outreachy (formerly the Outreach Program for Women). But projects can be picked up by anyone! If you're interesting in hacking Xen Project code and want to become a part of our friendly developer community this is the place to start! Ready for the challenge?
To work on a project:
- Send an email to the relevant mailing list (see Developer Mailing Lists) and let us know if you are interested in starting to work or applying on a specific project.
- Post your ideas, questions, RFCs to the relevant mailing list sooner than later so you can get comments and feedback.
- An easy way to get started (and show that you can set up the Xen Development Environment, fix an issue, build and test Xen, submit a patch, etc.) is to address a suitable number of Coverity Scan issues.
- Small Contribution Requirement: Outreachy requires that youfulfil the Make a Small Code Contribution Requirement. This is not strictly necessary for GSoC, but a small contribution to the project during the application period gives you an advantage
You have your own project idea: no problem!
- If you have your own project idea, outline what you are trying to do on the mailing list. If you know the right list, post your project idea on mailing list. Failing that post on xen-devel and we can redirect you to the right list. Make sure you add Outreachy <round> or GSoC <year> to the subject line.
It is a good idea to ...
The Xen Project has participated in Outreachy and Google Summer of Code (GSoC) in the past. One of the things we learned by participating in these programs is that you will be more successful, happier and get more out of participating in internship programs, if you do a bit of prep-work before writing an application. Here is some stuff you can do:
- Contact your mentor early and get to know him or her
- Start hanging out on our IRC channels (#xendevel, #unikraft, #mirage)
- You may want to ask the mentor for a couple of small bitesize work-items (such as reviewing someones patch, a bitesize bug, ...) and start communicating on the relevant mailing list. That helps you become familiar with our development process, the mentor and other community members and will help you chose the right project and help you decide whether the Xen project is for you.
- Note that quite a few Xen maintainers used to be GSoC participants once. Feel free to ask community dot manager at xenproject dot org to put you in touch with them if you have questions about their experience.
- Any work you submit before applying for a project should be based on xen-unstable development tree, if the project is Xen Hypervisor and/or tools related. Linux kernel related patches should be based on upstream kernel.org Linux git tree (latest version). Mirage OS patches should be based on the right codeline too. Check out the navigation by audience section on the left to find resources.
More resources
Quick links to changelogs of the various Xen related repositories/trees: Please see XenRepositories wiki page!
Before to submit patches, please look at Submitting Xen Patches wiki page and the relevant Xen Project team page. This will contain more information.
If you have new ideas, suggestions or development plans let us know and we'll update this list!
Aspiring Participants
- Please contact the mentor and CC the most appropriate mailing list
- Get a bite-size task from the mentor before the application starts
- If you feel comfortable with an idea, please put your name to an idea using the following format
{{project
...
|Review=(delete as addressed)
* {{Comment|~~~~:}} I am interested in this idea ...
(note that you may also want to link to the e-mail thread with the mentor)
- You will need to request write access to the wiki by filling out this form
Outreach Program Project Ideas
List of peer reviewed Projects
Xen Hypervisor Userspace Tools
golang consumer for the `xenlight` golang package
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Xen Toolstack
Xen Hypervisor
Xen on ARM: Trap & sanitize ID registers (ID_PFR0, ID_DFR0, etc)
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Xen on ARM, dom0less: configurable memory layout for guests
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ARMv8.1 atomics
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Xen on ARM: dynamic virtual memory layout
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Xen on ARM: Performance Counters Virtualization
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Unikraft
Unikraft is a unikernel build system that enables developers to build light-weight services starting from a highly customizable library base. This library base includes core libraries which provide decomposed OS functionality (e.g., schedulers, memory allocators, etc.) and enhanced libraries that provide functionality to unikernels that is often required by applications (e.g., libC, network stacks). For instance, on x86_64 Unikraft is able to automatically generate a (Micro)-python unikernel weighing in at only ~700KBs.
For more information please checkout: [1]
Unikernel QEMU/Stub Domains
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Mirage OS
Several different projects (follow link)
For Mirage OS, please check out the list of Mirage OS projects where help is needed. If you are interested in one of these projects, please e-mail mirageos-devel@lists.xenproject.org and CC the mentor from the page (the project will contain a link to the mentor's GitHub account, which normally contains an email address and IRC information). You can also ask questions on the #mirage IRC channel and usually find mentors on there.
XAPI
No projects at this stage.
Infra and Community
We also have some infrastructure, tooling and community related projects that run across all the sub-projects. These are slightly different from other projects, in terms of skills and working with the community. Please check extra information below the project.
Add Centos Virt SIG Xen packages test to the CentOS CI loop
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Add more FreeBSD testing to osstest
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New Project Ideas
Please add new project ideas here, following
Conventions for Projects and Project Mentors
Rules and Advice for Adding Ideas
- Be creative
- Add projects into New Project Ideas or improve projects in Project Ideas that Need Review or more work through review comments.
- Use the {{GSoC Project}} template to encode ideas on this page. Please read the Template Documentation before you do so.
- Be specific: what do you want to be implemented; if at all possible provide an indication of size and complexity as described above to make it easier for an applicant to choose ideas
- If you are willing to mentors those ideas, add your name and email to the idea.
- Aspiring mentors should introduce themselves on the most appropriate Xen Project mailing list
Peer Review Goals
We strongly recommend and invite project proposers and project mentors to review each others proposals. When you review, please look out for
- Can an intern get going and started with the information in the project description
- Are any unstated assumptions in the proposal, is there undefined terminology, etc. in the proposal
- Can the project completed in 3 months (assume that one month is needed for preparation)
- Does the project meet Google Summer of Code goals, which are
- Create and release open source code for the benefit of all
- Inspire young developers to begin participating in open source development
- Help open source projects identify and bring in new developers and committers
- Provide interns the opportunity to do work related to their academic pursuits (think "flip bits, not burgers")
- Give interns more exposure to real-world software development scenarios (e.g., distributed development, software licensing questions, mailing-list etiquette)
Peer Review Conventions
The {{GSoC Project}} template used to encode project listings, contains some review functionality. Please read the Template Documentation before you add a template, also please use the conventions below to make comments.
|Review=(delete as addressed)
* {{Comment|~~~~:}} Comment 1
* {{Comment|~~~~:}} Comment 2
Choosing Projects
We have a bi-weekly mentor meeting overlooked by our program management team, which are a core team of 2-3 mentors and a program administrator. This group will work with mentors to ensure that project proposals are of good quality and whether mentors are engaging with the program management team and particpants in the weeks before the application period ends.
Projects completed in 2017
Fuzzing Xen hypercall interfaceThis project was completed by Felix Schmoll For more information see
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This project was completed by Zhongze Liu For more information see
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