From patchwork Mon May 27 06:27:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 13674610 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 8CE63C25B74 for ; Mon, 27 May 2024 06:29:05 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sBTqu-0002qT-2E; Mon, 27 May 2024 02:29:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sBTqB-0002FR-1q for qemu-devel@nongnu.org; Mon, 27 May 2024 02:28:15 -0400 Received: from todd.t-8ch.de ([2a01:4f8:c010:41de::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sBTq9-0004r3-Du for qemu-devel@nongnu.org; Mon, 27 May 2024 02:28:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=t-8ch.de; s=mail; t=1716791283; bh=5/1Bk9mnF+1n9Z51eNqcrOq05hjSHDlV2xn6uybxovM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=T/H4n/MoMJyg5xY75PjvMBaw7Nx5jKSAHPbSruI4smBwenNJU+4IR2bVZwsBnasQk V3OiGN31cTVjPyMwjseI8pxdwLLD9+xtdXrC+fNIiTO+YVLW0oJZPXGuDPirpMxzDM ohrtKuhLhxs+JDcHRzEoSaY91/vN+VDWyiYDmKKU= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Mon, 27 May 2024 08:27:52 +0200 Subject: [PATCH v8 6/8] pvpanic: Emit GUEST_PVSHUTDOWN QMP event on pvpanic shutdown signal MIME-Version: 1.0 Message-Id: <20240527-pvpanic-shutdown-v8-6-5a28ec02558b@t-8ch.de> References: <20240527-pvpanic-shutdown-v8-0-5a28ec02558b@t-8ch.de> In-Reply-To: <20240527-pvpanic-shutdown-v8-0-5a28ec02558b@t-8ch.de> To: "Michael S. Tsirkin" , Cornelia Huck , Paolo Bonzini , Thomas Huth , Laurent Vivier , Eric Blake , Markus Armbruster Cc: qemu-devel@nongnu.org, Alejandro Jimenez , kvm@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1716791282; l=1650; i=thomas@t-8ch.de; s=20221212; h=from:subject:message-id; bh=JwxX+0mx7goMox95OiqVgku6MBDDSp90a8h3Zes6g8U=; b=mV9hg4JU6KjY9bvEwqIIVIlx5KudKg7E0xc17yCnyqYzw96nJPeIXtWNpsRGYYprIdCUlfVNL mTvRcibCLINDfzWVy3TVSUdmM8XZotkMC7Dbg3aO/402hUAhccDLdmR X-Developer-Key: i=thomas@t-8ch.de; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= Received-SPF: pass client-ip=2a01:4f8:c010:41de::1; envelope-from=thomas@t-8ch.de; helo=todd.t-8ch.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Alejandro Jimenez Emit a QMP event on receiving a PVPANIC_SHUTDOWN event. Even though a typical SHUTDOWN event will be sent, it will be indistinguishable from a shutdown originating from other cases (e.g. KVM exit due to KVM_SYSTEM_EVENT_SHUTDOWN) that also issue the guest-shutdown cause. A management layer application can detect the new GUEST_PVSHUTDOWN event to determine if the guest is using the pvpanic interface to request shutdowns. Signed-off-by: Alejandro Jimenez --- qapi/run-state.json | 14 ++++++++++++++ system/runstate.c | 1 + 2 files changed, 15 insertions(+) diff --git a/qapi/run-state.json b/qapi/run-state.json index f8773f23b298..5ac0fec85236 100644 --- a/qapi/run-state.json +++ b/qapi/run-state.json @@ -462,6 +462,20 @@ { 'event': 'GUEST_CRASHLOADED', 'data': { 'action': 'GuestPanicAction', '*info': 'GuestPanicInformation' } } +## +# @GUEST_PVSHUTDOWN: +# +# Emitted when guest submits a shutdown request via pvpanic interface +# +# Since: 9.1 +# +# Example: +# +# <- { "event": "GUEST_PVSHUTDOWN", +# "timestamp": { "seconds": 1648245259, "microseconds": 893771 } } +## +{ 'event': 'GUEST_PVSHUTDOWN' } + ## # @GuestPanicAction: # diff --git a/system/runstate.c b/system/runstate.c index 83055f327831..c149b1ab4ba6 100644 --- a/system/runstate.c +++ b/system/runstate.c @@ -587,6 +587,7 @@ void qemu_system_guest_crashloaded(GuestPanicInformation *info) void qemu_system_guest_pvshutdown(void) { + qapi_event_send_guest_pvshutdown(); qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); }