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Export KVM Host Power Management capabilities

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This patch exports KVM Host Power Management capabilities as XML so that
higher-level systems management software can make use of these features
available in the host.

The script "pm-is-supported" (from pm-utils package) is run to discover if
Suspend-to-RAM (S3) or Suspend-to-Disk (S4) is supported by the host.
If either of them are supported, then a new tag "<power_management>" is
introduced in the XML under the <host> tag.

However in case the query to check for power management features succeeded,
but the host does not support any such feature, then the XML will contain
an empty <power_management/> tag. In the event that the PM query itself
failed, the XML will not contain any "power_management" tag.

To use this, new APIs could be implemented in libvirt to exploit power
management features such as S3/S4.
This commit is contained in:
Srivatsa S. Bhat
2011-11-22 11:31:22 +08:00
committed by Daniel Veillard
parent 693d22d417
commit e352b16400
12 changed files with 144 additions and 6 deletions
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@@ -206,6 +206,7 @@ Patches have also been contributed by:
Eli Qiao <taget@linux.vnet.ibm.com>
Michael Wood <esiotrot@gmail.com>
Bharata B Rao <bharata@linux.vnet.ibm.com>
Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
[....send patches to get your name here....]