[Xen-changelog] [xen-unstable] docs: improve documantion of xl's viridian option

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Ian Campbell <ian.campbell@xxxxxxxxxx>
# Date 1322576399 0
# Node ID dd7cf728df178676cab626986caa27c04492619a
# Parent  a025f010790018448a3774c8f278e62e9a75622a
docs: improve documantion of xl's viridian option

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
---


diff -r a025f0107900 -r dd7cf728df17 docs/man/xl.cfg.pod.5
--- a/docs/man/xl.cfg.pod.5     Tue Nov 29 14:17:27 2011 +0000
+++ b/docs/man/xl.cfg.pod.5     Tue Nov 29 14:19:59 2011 +0000
@@ -555,7 +555,13 @@
 
 Turns on or off the exposure of MicroSoft Hyper-V (AKA viridian)
 compatible enlightenments to the guest.  These can improve performance
-of Microsoft Windows guests (XXX which versions of Windows benefit?)
+of Microsoft Windows guests from Windows Vista and Windows 2008
+onwards and setting this option for such guests is strongly
+recommended. This option should be harmless for other versions of
+Windows (although it won't give any benefit) and the majority of other
+non-Windows OSes. However it is known to be incompatible with some
+other Operating Systems and in some circumstance can prevent Xen's own
+paravirtualisation interfaces for HVM guests from being used.
 
 =back
 

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