From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C72F2C433E0 for ; Mon, 18 May 2020 08:26:41 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9613B20674 for ; Mon, 18 May 2020 08:26:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9613B20674 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:32996 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jab6e-0000n7-SB for qemu-devel@archiver.kernel.org; Mon, 18 May 2020 04:26:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45542) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jab66-0000Lv-8t for qemu-devel@nongnu.org; Mon, 18 May 2020 04:26:07 -0400 Received: from indium.canonical.com ([91.189.90.7]:51906) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jab65-0004PS-Ge for qemu-devel@nongnu.org; Mon, 18 May 2020 04:26:06 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1jab63-0005kt-Rf for ; Mon, 18 May 2020 08:26:03 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id C356C2E8106 for ; Mon, 18 May 2020 08:26:03 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Mon, 18 May 2020 08:06:46 -0000 From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <1502613@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=In Progress; importance=Wishlist; assignee=snizovtsev@gmail.com; X-Launchpad-Bug-Tags: battery management power virtual X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: kranebrain naftaly-avadiaev philmd snizovtsev wolfgangandreas X-Launchpad-Bug-Reporter: Wolfgang Andreas (wolfgangandreas) X-Launchpad-Bug-Modifier: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9_=28philmd?= =?utf-8?q?=29?= References: <20151004131253.1871.94138.malonedeb@wampee.canonical.com> Message-Id: <158978920674.17853.8337243912424290112.malone@soybean.canonical.com> Subject: [Bug 1502613] Re: [Feature Request] Battery Status / Virtual Battery X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="0385b538081bc4718df6fb844a3afc89729c94ce"; Instance="production-secrets-lazr.conf" X-Launchpad-Hash: 02cc289e278b68142e887d6f132f5ef2e6f4fe26 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/18 04:21:44 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1502613 <1502613@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The implementation could be similar to the temperature sensor interface pro= posed here: https://www.mail-archive.com/qemu-block@nongnu.org/msg65192.html -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1502613 Title: [Feature Request] Battery Status / Virtual Battery Status in QEMU: In Progress 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 / ... To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1502613/+subscriptions