Re: [libvirt] [PATCH 6/6] Expand docs about clock modes

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On Thu, Feb 18, 2010 at 05:54:32PM +0000, Daniel P. Berrange wrote:
> * formatdomain.html.in: Document new clock options
> ---
>  docs/formatdomain.html.in |   38 +++++++++++++++++++++++++++++++++++---
>  1 files changed, 35 insertions(+), 3 deletions(-)
> 
> diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
> index 083a80a..55038e2 100644
> --- a/docs/formatdomain.html.in
> +++ b/docs/formatdomain.html.in
> @@ -393,9 +393,41 @@
>  
>      <dl>
>        <dt><code>clock</code></dt>
> -      <dd>The <code>offset</code> attribute takes either "utc" or
> -        "localtime" to specify how the guest clock is initialized
> -        in relation to the host OS.
> +      <dd>
> +	<p>The <code>offset</code> attribute takes three possible
> +	  values, allowing fine grained control over how the guest
> +	  clock is synchronized to the host. NB, not all hypervisors
> +	  support all modes.</p>
> +	<dl>
> +	  <dt><code>utc</code></dt>
> +	  <dd>
> +	    The guest clock will always be synchronized to UTC when
> +	    booted</dd>
> +	  <dt><code>localtime</code></dt>
> +	  <dd>
> +	    The guest clock will be synchronized to the host's configured
> +	    timezone when booted, if any.
> +	  </dd>
> +	  <dt><code>timezone</code></dt>
> +	  <dd>
> +	    The guest clock will be synchronized to the requested timezone
> +	    using the <code>timezone</code> attribute.
> +	  </dd>
> +	  <dt><code>variable</code></dt>
> +	  <dd>
> +	    The guest clock will have an arbitrary offset applied
> +	    relative to UTC. The delta relative to UTC is specified
> +	    in seconds, using the <code>adjustment</code> attribute.
> +	    The guest is free to adjust the RTC over time an expect
> +	    that it will be honoured at next reboot. This is in
> +	    contrast to 'utc' mode, where the RTC adjustments are
> +	    lost at each reboot.
> +	  </dd>
> +	</dl>
> +	<p>
> +	  NB, at time of writing, only QEMU supports the variable
> +	  clock mode, or custom timezones.
> +	</p>
>        </dd>
>      </dl>
>  

  ACK, too,

  ACK for the serie a a whole, just a few checks and improvement
  possible.

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
daniel@xxxxxxxxxxxx  | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library  http://libvirt.org/

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