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[Qemu-devel] [Bug 1502613] Re: [Feature Request] Battery Status / Virtua

From: Thomas Huth
Subject: [Qemu-devel] [Bug 1502613] Re: [Feature Request] Battery Status / Virtual Battery
Date: Wed, 19 Sep 2018 08:17:12 -0000

** Changed in: qemu
   Importance: Undecided => Wishlist

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  [Feature Request] Battery Status / Virtual Battery

Status in QEMU:

Bug description:
  When using virtualization on notebooks heavily then virtual machines
  do not realize that they're running on a notebook device causing high
  power consumption because they're not switching into a optimized
  "laptop mode". This leads to the circumstance that they are trying to
  do things like defragmentation / virtus scan / etc. while the host is
  still running on batteries.

  So it would be great if QEMU / KVM would have support for emulating
  "Virtual Batteries" to guests causing them to enable power-saving
  options like disabling specific services / devices / file operations
  automatically by OS.

  Optionally a great feature would be to set virtual battery's status
  manually. For example: Current charge rate / charging / discharging /

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