Xen devel - Nov 2011 - [PATCH] docs: xlexample.hvm: mention the viridian setting

# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1322233890 0
# Node ID b4c07fbe3557ae501fc2d8a21b41f1b1cd5198cb
# Parent  31e71820ce93b72b0223882f6c2e1f461920bda9
docs: xlexample.hvm: mention the viridian setting.

Turning this on for Windows guests is recommended.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>

diff -r 31e71820ce93 -r b4c07fbe3557 tools/examples/xlexample.hvm
--- a/tools/examples/xlexample.hvm	Fri Nov 25 14:44:10 2011 +0000
+++ b/tools/examples/xlexample.hvm	Fri Nov 25 15:11:30 2011 +0000
@@ -16,6 +16,11 @@ name = "example.hvm"
 # The default behavior is to generate a new UUID each time the guest is
started.
 #uuid = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"
 
+# Enable Microsoft Hyper-V compatibile paravirtualisation /
+# enlightenment interfaces. Turning this on can improve Windows guest
+# performance and is therefore recommended
+#viridian = 1
+
 # Initial memory allocation (MB)
 memory = 128

On 11/25/11 16:11, Ian Campbell wrote:
> # HG changeset patch
> # User Ian Campbell<ian.campbell@citrix.com>
> # Date 1322233890 0
> # Node ID b4c07fbe3557ae501fc2d8a21b41f1b1cd5198cb
> # Parent  31e71820ce93b72b0223882f6c2e1f461920bda9
> docs: xlexample.hvm: mention the viridian setting.
>
> Turning this on for Windows guests is recommended.
Actually, Hyper-V fails to boot with viridian=1 because our
viridian implementation misses features such as the virtualized
LAPIC interface.

Christoph

>
> Signed-off-by: Ian Campbell<ian.campbell@citrix.com>
>
> diff -r 31e71820ce93 -r b4c07fbe3557 tools/examples/xlexample.hvm
> --- a/tools/examples/xlexample.hvm	Fri Nov 25 14:44:10 2011 +0000
> +++ b/tools/examples/xlexample.hvm	Fri Nov 25 15:11:30 2011 +0000
> @@ -16,6 +16,11 @@ name = "example.hvm"
>   # The default behavior is to generate a new UUID each time the guest is
started.
>   #uuid = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"
>
> +# Enable Microsoft Hyper-V compatibile paravirtualisation /
> +# enlightenment interfaces. Turning this on can improve Windows guest
> +# performance and is therefore recommended
> +#viridian = 1
> +
>   # Initial memory allocation (MB)
>   memory = 128
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>

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On Fri, 2011-11-25 at 15:22 +0000, Christoph Egger
wrote:
> On 11/25/11 16:11, Ian Campbell wrote:
> > # HG changeset patch
> > # User Ian Campbell<ian.campbell@citrix.com>
> > # Date 1322233890 0
> > # Node ID b4c07fbe3557ae501fc2d8a21b41f1b1cd5198cb
> > # Parent  31e71820ce93b72b0223882f6c2e1f461920bda9
> > docs: xlexample.hvm: mention the viridian setting.
> >
> > Turning this on for Windows guests is recommended.
> 
> Actually, Hyper-V fails to boot with viridian=1 because our
> viridian implementation misses features such as the virtualized
> LAPIC interface.
You mean booting a Viridian _Host_ as a Nested HVM guest?

I''m not sure I can make that distinction clearly and concisely enough
to
be useful in this context nor that this is something for a regular user
to worry about.

If you want to propose an update to the xl.cfg(5) man page I posted we
could see how that looks.

Ian.
> 
> Christoph
> 
> 
> >
> > Signed-off-by: Ian Campbell<ian.campbell@citrix.com>
> >
> > diff -r 31e71820ce93 -r b4c07fbe3557 tools/examples/xlexample.hvm
> > --- a/tools/examples/xlexample.hvm	Fri Nov 25 14:44:10 2011 +0000
> > +++ b/tools/examples/xlexample.hvm	Fri Nov 25 15:11:30 2011 +0000
> > @@ -16,6 +16,11 @@ name = "example.hvm"
> >   # The default behavior is to generate a new UUID each time the guest
is started.
> >   #uuid = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"
> >
> > +# Enable Microsoft Hyper-V compatibile paravirtualisation /
> > +# enlightenment interfaces. Turning this on can improve Windows guest
> > +# performance and is therefore recommended
> > +#viridian = 1
> > +
> >   # Initial memory allocation (MB)
> >   memory = 128
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xensource.com
> > http://lists.xensource.com/xen-devel
> >
> 
>