svn commit: r43550 - head/en_US.ISO8859-1/htdocs/news/status

Thu Jan 16 14:35:15 UTC 2014

Author: pgj
Date: Thu Jan 16 14:35:13 2014
New Revision: 43550
URL: http://svnweb.freebsd.org/changeset/doc/43550

Log:
  - Add 2013Q4 report for the VT-d work
  
  Submitted by:	kib

Modified:
  head/en_US.ISO8859-1/htdocs/news/status/report-2013-10-2013-12.xml

Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2013-10-2013-12.xml
==============================================================================

--- head/en_US.ISO8859-1/htdocs/news/status/report-2013-10-2013-12.xml	Thu Jan 16 12:31:01 2014	(r43549)
+++ head/en_US.ISO8859-1/htdocs/news/status/report-2013-10-2013-12.xml	Thu Jan 16 14:35:13 2014	(r43550)
@@ -19,7 +19,7 @@
 
     <!-- XXX: Keep updating the number of entries -->
     <p>Thanks to all the reporters for the excellent work!  This report
-      contains 35 entries and we hope you enjoy reading it.</p>
+      contains 36 entries and we hope you enjoy reading it.</p>
 
     <p>The deadline for submissions covering between January and
       March 2014 is April 7th, 2014.</p>
@@ -1979,4 +1979,47 @@ device vt_vga</pre>
       </ul>
     </body>
   </project>
+
+  <project cat='arch'>
+    <title>Intel IOMMU (VT-d, DMAR) Support</title>
+
+    <contact>
+      <person>
+	<name>
+	  <given>Konstantin</given>
+	  <common>Belousov</common>
+	</name>
+	<email>kib at FreeBSD.org</email>
+      </person>
+    </contact>
+
+    <links>
+      <url href="http://svnweb.freebsd.org/changeset/base/257251"/>
+      <url href="http://svnweb.freebsd.org/changeset/base/259512"/>
+    </links>
+
+    <body>
+      <p>An Input/Output Memory Management Unit (IOMMU) is a Memory
+	Management Unit (MMU) that connects a Direct Memory
+	Access-capable (DMA-capable) I/O bus to the main memory,
+	therefore I/O virtualization is performed by the chipset.  An
+	example IOMMU is the graphics address remapping table (GART)
+	used by AGP and PCI Express graphics cards.  Intel has published
+	a specification for IOMMU technology as Virtualization
+	Technology for Directed I/O, abbreviated VT-d.</p>
+
+      <p>A VT-d driver was committed to <tt>head</tt> and
+	<tt>stable/10</tt>, so <tt>busdma(9)</tt> is now able to utilize
+	VT-d.  The feature is disabled by default, but it may be enabled
+	via the <tt>hw.dmar.enable</tt> <tt>loader(8)</tt> tunable
+	— see the links for more information.  The immediate plans
+	include increasing the support for this kind of hardware by
+	testing and providing the workarounds for specific issues, and
+	by adding features of the next generation of Intel IOMMU.
+	Hopefully, the existing and new consumers of VT-d will start use
+	the driver soon.</p>
+
+      <p>This project was sponsored by The &os; Foundation.</p>
+    </body>
+  </project>
 </report>
