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8.12. Guest Virtual Machine Power Management
It is possible to forcibly enable or disable BIOS advertisements to the guest virtual machine's operating system by changing the following parameters in the Domain XML for Libvirt:
...
<pm>
<suspend-to-disk enabled='no'/>
<suspend-to-mem enabled='yes'/>
</pm>
...
The element
pm enables ('yes') or disables ('no') BIOS support for S3 (suspend-to-disk) and S4 (suspend-to-mem) ACPI sleep states. If nothing is specified, then the hypervisor will be left with its default value.
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