Date: Fri, 17 Dec 2010 11:25:38 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r216501 - head/share/man/man4 Message-ID: <201012171125.oBHBPcwU067950@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201012171125.oBHBPcwU067950>