diff options
| author | Deployment Bot (from Travis CI) <deploy@travis-ci.org> | 2021-05-13 12:18:40 +0000 |
|---|---|---|
| committer | Deployment Bot (from Travis CI) <deploy@travis-ci.org> | 2021-05-13 12:18:40 +0000 |
| commit | ff7c0852427a5fa90b6423c31410a7a711a9e3ed (patch) | |
| tree | d74a98751c28d87cd0114e9da3976d02603659dd /doc/vas.html | |
| download | skiboot-ff7c0852427a5fa90b6423c31410a7a711a9e3ed.zip skiboot-ff7c0852427a5fa90b6423c31410a7a711a9e3ed.tar.gz skiboot-ff7c0852427a5fa90b6423c31410a7a711a9e3ed.tar.bz2 | |
Deploy open-power/skiboot to github.com/open-power/skiboot.git:gh-pages
Diffstat (limited to 'doc/vas.html')
| -rw-r--r-- | doc/vas.html | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/doc/vas.html b/doc/vas.html new file mode 100644 index 0000000..59f1f16 --- /dev/null +++ b/doc/vas.html @@ -0,0 +1,118 @@ + +<!DOCTYPE html> + +<html> + <head> + <meta charset="utf-8" /> + <meta name="viewport" content="width=device-width, initial-scale=1.0" /> + <title>Virtual Accelerator Switchboard (VAS) — skiboot v6.7-45-g4b9ca02 + documentation</title> + <link rel="stylesheet" type="text/css" href="_static/pygments.css" /> + <link rel="stylesheet" type="text/css" href="_static/classic.css" /> + + <script data-url_root="./" id="documentation_options" src="_static/documentation_options.js"></script> + <script src="_static/jquery.js"></script> + <script src="_static/underscore.js"></script> + <script src="_static/doctools.js"></script> + + <link rel="index" title="Index" href="genindex.html" /> + <link rel="search" title="Search" href="search.html" /> + <link rel="next" title="Secure and Trusted Boot Library (LibSTB) Documentation" href="stb.html" /> + <link rel="prev" title="MPIPL (aka FADUMP) Overview" href="mpipl.html" /> + </head><body> + <div class="related" role="navigation" aria-label="related navigation"> + <h3>Navigation</h3> + <ul> + <li class="right" style="margin-right: 10px"> + <a href="genindex.html" title="General Index" + accesskey="I">index</a></li> + <li class="right" > + <a href="stb.html" title="Secure and Trusted Boot Library (LibSTB) Documentation" + accesskey="N">next</a> |</li> + <li class="right" > + <a href="mpipl.html" title="MPIPL (aka FADUMP) Overview" + accesskey="P">previous</a> |</li> + <li class="nav-item nav-item-0"><a href="index.html">skiboot v6.7-45-g4b9ca02 + documentation</a> »</li> + <li class="nav-item nav-item-this"><a href="">Virtual Accelerator Switchboard (VAS)</a></li> + </ul> + </div> + + <div class="document"> + <div class="documentwrapper"> + <div class="bodywrapper"> + <div class="body" role="main"> + + <div class="section" id="virtual-accelerator-switchboard-vas"> +<h1>Virtual Accelerator Switchboard (VAS)<a class="headerlink" href="#virtual-accelerator-switchboard-vas" title="Permalink to this headline">¶</a></h1> +<p>This document provides information about using VAS from user space. +Applications send NX requests using COPY/PASTE instructions. NX raises +an interrupt when it sees fault on the request buffer. Kernel handles +the interrupt and process the fault.</p> +<p>Skiboot allocates the IRQ and exports it with interrupts property. To +provide backward compatibility for older kernels, enable VAS user space +support with NVRAM command.</p> +<blockquote> +<div><p>nvram -p ibm,skiboot –update-config vas-user-space=enable</p> +</div></blockquote> +<p>This nvram config update is temporary and can be removed in future if +not needed.</p> +</div> + + + <div class="clearer"></div> + </div> + </div> + </div> + <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> + <div class="sphinxsidebarwrapper"> + <h4>Previous topic</h4> + <p class="topless"><a href="mpipl.html" + title="previous chapter">MPIPL (aka FADUMP) Overview</a></p> + <h4>Next topic</h4> + <p class="topless"><a href="stb.html" + title="next chapter">Secure and Trusted Boot Library (LibSTB) Documentation</a></p> + <div role="note" aria-label="source link"> + <h3>This Page</h3> + <ul class="this-page-menu"> + <li><a href="_sources/vas.rst.txt" + rel="nofollow">Show Source</a></li> + </ul> + </div> +<div id="searchbox" style="display: none" role="search"> + <h3 id="searchlabel">Quick search</h3> + <div class="searchformwrapper"> + <form class="search" action="search.html" method="get"> + <input type="text" name="q" aria-labelledby="searchlabel" /> + <input type="submit" value="Go" /> + </form> + </div> +</div> +<script>$('#searchbox').show(0);</script> + </div> + </div> + <div class="clearer"></div> + </div> + <div class="related" role="navigation" aria-label="related navigation"> + <h3>Navigation</h3> + <ul> + <li class="right" style="margin-right: 10px"> + <a href="genindex.html" title="General Index" + >index</a></li> + <li class="right" > + <a href="stb.html" title="Secure and Trusted Boot Library (LibSTB) Documentation" + >next</a> |</li> + <li class="right" > + <a href="mpipl.html" title="MPIPL (aka FADUMP) Overview" + >previous</a> |</li> + <li class="nav-item nav-item-0"><a href="index.html">skiboot v6.7-45-g4b9ca02 + documentation</a> »</li> + <li class="nav-item nav-item-this"><a href="">Virtual Accelerator Switchboard (VAS)</a></li> + </ul> + </div> + <div class="footer" role="contentinfo"> + © Copyright 2016-2017, IBM, others. + Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 4.0.1. + </div> + </body> +</html>
\ No newline at end of file |