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docs: Document the real behaviour of suspend-to-{mem,disk}

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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@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Martin Kletzander 2017-09-29 14:26:53 +02:00
parent a55eaced60
commit b9163679c5
1 changed files with 5 additions and 1 deletions
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6
docs/formatdomain.html.in
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@ -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>
<h3><a id="elementsFeatures">Hypervisor features</a></h3>