From owner-svn-src-head@FreeBSD.ORG Fri Dec 17 11:25:38 2010 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5C3A6106564A; Fri, 17 Dec 2010 11:25:38 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 3054B8FC13; Fri, 17 Dec 2010 11:25:38 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id oBHBPcsR067952; Fri, 17 Dec 2010 11:25:38 GMT (envelope-from rwatson@svn.freebsd.org) Received: (from rwatson@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id oBHBPcwU067950; Fri, 17 Dec 2010 11:25:38 GMT (envelope-from rwatson@svn.freebsd.org) Message-Id: <201012171125.oBHBPcwU067950@svn.freebsd.org> From: Robert Watson Date: Fri, 17 Dec 2010 11:25:38 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r216501 - head/share/man/man4 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Dec 2010 11:25:38 -0000 Author: rwatson Date: Fri Dec 17 11:25:37 2010 New Revision: 216501 URL: http://svn.freebsd.org/changeset/base/216501 Log: Correct some misundertandings on my part about PV vs HVM kernel configuration options. MFC after: 1 day Modified: head/share/man/man4/xen.4 Modified: head/share/man/man4/xen.4 ============================================================================== --- head/share/man/man4/xen.4 Fri Dec 17 10:05:21 2010 (r216500) +++ head/share/man/man4/xen.4 Fri Dec 17 11:25:37 2010 (r216501) @@ -40,17 +40,14 @@ the following lines in your kernel confi .Bd -ragged -offset indent .Cd "options PAE" .Cd "options XEN" +.Cd "nooptions NATIVE" .Ed .Pp -To compile hardware-assisted virtualization (HVM) Xen guest support into an -amd64 kernel, place the following line in your kernel configuration file: +To compile hardware-assisted virtualization (HVM) Xen guest support with +para-virtualized drivers into an amd64 kernel, place the following lines in +your kernel configuration file: .Bd -ragged -offset indent .Cd "options XENHVM" -.Ed -.Pp -To compile support for Xenbux and Xen PV drivers into an amd64 or i386 -kernel, place the following line in your kernel configuration file: -.Bd -ragged -offset indent .Cd "device xenpci" .Ed .Sh DESCRIPTION @@ -73,7 +70,9 @@ semantics. .Pp .Fx supports a fully para-virtualized (PV) kernel on the i386 architecture using -.Cd "options XEN" ; +.Cd "options XEN" +and +.Cd "nooptions NATIVE" ; currently, this requires use of a PAE kernel, enabled via .Cd "options PAE" . .Pp @@ -81,16 +80,23 @@ currently, this requires use of a PAE ke supports hardware-assisted virtualization (HVM) on both the i386 and amd64 kernels; however, PV device drivers with an HVM kernel are only supported on the amd64 architecture, and require -.Cd "options XENHVM" . +.Cd "options XENHVM" +and +.Cd "device xenpci" . .Pp Para-virtualized device drivers are required in order to support certain functionality, such as processing management requests, returning idle physical memory pages to the hypervisor, etc. .Ss Xen DomU device drivers -Adding -.Cd "options xenpci" -to the kernel configuration enables the Xen administrative or -para-virtualized drivers: +Xen administrative and para-virtualized drivers are automatically added to +the kernel if a PV kernel is compiled using +.Cd "options XEN" ; +for HVM environments, +.Cd "options XENHVM" +and +.Cd "device xenpci" +are required. +The follow drivers are supported: .Bl -hang -offset indent -width blkfront .It Nm balloon Allow physical memory pages to be returned to the hypervisor as a result of