On Fri, Sep 29, 2017 at 02:55:05PM +0200, Martin Kletzander wrote:
> We get a question every now and then about why hibernation works when
> suspend-to-disk is disabled and similar. Let's hope that, by documenting the
> obvious more blatantly, people will get more informed.
>
> Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>
> ---
> docs/formatdomain.html.in | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
> index 5bdcb569c4c0..5dcf2fedb01c 100644
> --- a/docs/formatdomain.html.in
> +++ b/docs/formatdomain.html.in
> @@ -1664,7 +1664,11 @@
> <dd>These elements enable ('yes') or disable ('no') BIOS support
> for S3 (suspend-to-mem) and S4 (suspend-to-disk) ACPI sleep
> states. If nothing is specified, then the hypervisor will be
> - left with its default value.</dd>
> + left with its default value.<br/>
> + Note: This setting cannot prevent the guest OS from performing
> + a suspend as the guest OS itself can choose to circumvent the
> + unavailability of the sleep states (e.g. S4 by turning off
> + completely).</dd>
> </dl>
So according to what I found, kernel can present shutdown as the default action
for hibernation support, maybe a bit strange to me, but documenting it
reasonable, I have to dig deeper though to understand the ACPI more.
Reviewed-by: Erik Skultety <eskultet@xxxxxxxxxx>
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