From patchwork Wed Jan 23 07:19:29 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hu Tao X-Patchwork-Id: 214833 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 807902C007E for ; Wed, 23 Jan 2013 19:09:19 +1100 (EST) Received: from localhost ([::1]:45195 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TxudV-00018c-OV for incoming@patchwork.ozlabs.org; Wed, 23 Jan 2013 02:20:41 -0500 Received: from eggs.gnu.org ([208.118.235.92]:44778) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Txucc-0007oa-Mr for qemu-devel@nongnu.org; Wed, 23 Jan 2013 02:19:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TxucY-0000dM-O0 for qemu-devel@nongnu.org; Wed, 23 Jan 2013 02:19:46 -0500 Received: from [222.73.24.84] (port=25291 helo=song.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TxucY-0000bO-B0 for qemu-devel@nongnu.org; Wed, 23 Jan 2013 02:19:42 -0500 X-IronPort-AV: E=Sophos;i="4.84,521,1355068800"; d="scan'208";a="6634053" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 23 Jan 2013 15:17:28 +0800 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id r0N7JTJW026189; Wed, 23 Jan 2013 15:19:34 +0800 Received: from localhost.localdomain ([10.167.225.29]) by fnstmail02.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.3) with ESMTP id 2013012315183390-1111786 ; Wed, 23 Jan 2013 15:18:33 +0800 From: Hu Tao To: kvm list , qemu-devel , "linux-kernel@vger.kernel.org" , "Daniel P. Berrange" , KAMEZAWA Hiroyuki , Jan Kiszka , Gleb Natapov , Blue Swirl , Eric Blake , Andrew Jones , Marcelo Tosatti , Sasha Levin , Luiz Capitulino Date: Wed, 23 Jan 2013 15:19:29 +0800 Message-Id: <0820809186232c03f3ce8187d587cfd8f14f16b8.1358920534.git.hutao@cn.fujitsu.com> X-Mailer: git-send-email 1.8.0.1.240.ge8a1f5a In-Reply-To: References: X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/01/23 15:18:33, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/01/23 15:18:39, Serialize complete at 2013/01/23 15:18:39 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 222.73.24.84 Subject: [Qemu-devel] [PATCH v12 rebased 8/8] pv event: add document to describe the usage X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Hu Tao --- docs/pv-event.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 docs/pv-event.txt diff --git a/docs/pv-event.txt b/docs/pv-event.txt new file mode 100644 index 0000000..ac9e7fa --- /dev/null +++ b/docs/pv-event.txt @@ -0,0 +1,17 @@ +KVM PV EVENT +============ + +kvm pv event allows guest OS to notify host OS of some events, for +example, guest panic. Currently, there is one event supported, that +is, guest panic. More events can be added later. + +By default, kvm pv event is disabled. In order to enable it, you have +to specify enable_pv_event=on for -machine command line option, along +with -global kvm_pv_event.panicked_action to specify the action taken +when panic event has occurred. Aviable panic actions are: "none", +"pause", "poweroff" and "reset". Following is example: + + qemu-system-x86_64 -enable-kvm -machine pc-0.12,enable_pv_event=on \ + -global kvm_pv_event.panicked_action=pause + +kvm pv event needs kvm support.