[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 05 of 15 v2] docs: add a document describing the xl cfg file syntax
On Fri, 2011-11-25 at 15:16 +0000, Paul Durrant wrote: > > -----Original Message----- > > From: Ian Campbell > > Sent: 25 November 2011 15:06 > > To: xen-devel@xxxxxxxxxxxxxxxxxxx > > Cc: Ian Jackson; Paul Durrant > > Subject: Re: [Xen-devel] [PATCH 05 of 15 v2] docs: add a document > > describing the xl cfg file syntax > > > > Paul, > > > > On Fri, 2011-11-25 at 14:49 +0000, Ian Campbell wrote: > > > > > > +=item B<viridian=BOOLEAN> > > > + > > > +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?) > > > > Is there anything else we can say here? What are the first versions > > of Windows which benefit from this? > > > > Ian, > > I think that's probably good enough. AFAIK viridian enlightenments > came in with the 6.0 kernel in Vista/2K8 but having the flag on should > do no harm for older kernels. How about this incremental patch? diff -r b4c07fbe3557 docs/man/xl.cfg.pod.5 --- a/docs/man/xl.cfg.pod.5 Fri Nov 25 15:11:30 2011 +0000 +++ b/docs/man/xl.cfg.pod.5 Fri Nov 25 15:23:14 2011 +0000 @@ -555,7 +555,13 @@ Windows L<http://wiki.xen.org/wiki/XenWi 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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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