Xen Support Improvements

From owner-svn-doc-all@FreeBSD.ORG Tue Jul 9 08:20:15 2013 Return-Path: Delivered-To: svn-doc-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 62DFC2A0; Tue, 9 Jul 2013 08:20:15 +0000 (UTC) (envelope-from pgj@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id 5590A1F89; Tue, 9 Jul 2013 08:20:15 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r698KF1D011378; Tue, 9 Jul 2013 08:20:15 GMT (envelope-from pgj@svn.freebsd.org) Received: (from pgj@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id r698KFJd011377; Tue, 9 Jul 2013 08:20:15 GMT (envelope-from pgj@svn.freebsd.org) Message-Id: <201307090820.r698KFJd011377@svn.freebsd.org> From: Gabor Pali Date: Tue, 9 Jul 2013 08:20:15 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r42211 - head/en_US.ISO8859-1/htdocs/news/status X-SVN-Group: doc-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-all@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "SVN commit messages for the entire doc trees \(except for " user" , " projects" , and " translations" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Jul 2013 08:20:15 -0000 Author: pgj Date: Tue Jul 9 08:20:14 2013 New Revision: 42211 URL: http://svnweb.freebsd.org/changeset/doc/42211 Log: - Add Q2 report on recent Xen work Submitted by: Roger Pau Monné Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2013-04-2013-06.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2013-04-2013-06.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2013-04-2013-06.xml Tue Jul 9 08:10:09 2013 (r42210) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2013-04-2013-06.xml Tue Jul 9 08:20:14 2013 (r42211) @@ -18,7 +18,7 @@

Thanks to all the reporters for the excellent work! This report - contains 26 entries and we hope you enjoy reading it.

+ contains 27 entries and we hope you enjoy reading it.

The deadline for submissions covering between July and September 2013 @@ -1439,4 +1439,88 @@ functionality through pkg(8). + + + Xen Support Improvements + + + + + Justin T. + Gibbs + + gibbs@FreeBSD.org + + + + + Will + Andrews + + will@FreeBSD.org + + + + + Andre + Oppermann + + andre@FreeBSD.org + + + + + Roger + Pau Monné + + roger.pau@citrix.com + + + + + Git repository + + + +

&os; Xen HVM can be further improved by using more PV + interfaces inside a HVM guest. So far the following items have + been completed:

+ +

Update Xen interface files. (Merged into + head)
Add support for the vector callback injection mechanism. + This replaces the PCI interrupt and provides a per-cpu + callback, which was not possible when using the PCI + interrupt.
Rework event channel implementation and use the same code + paths for both PV and PVHVM.
Implement PV one-shot event timers and timecounters.
Implement PV IPIs.
Live migration support for PV timers and PV IPIs.

+ +

With this changes, &os; will have a complete PVHVM port, this + will also set the ground for a future PVH port (when PVH support + is merged into Xen).

+ +

Further improvements on blkfront and netfront have also been + commited:

+ +

Fix netfront crash when detaching an interface.
Enable netfront to specify a maximum TSO length limiting the + segment chain to what the Xen host side can handle after + defragmentation.
Add barriers and flush support to blkfront.

+ +

Netfront changes have been merged to stable branches, + blkfront changes are only in head.

+ + + + Merge remaining changes into head. + +