From patchwork Thu Feb 21 00:57:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cleber Rosa X-Patchwork-Id: 1045692 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 444bvC6WBcz9s8m for ; Thu, 21 Feb 2019 12:08:23 +1100 (AEDT) Received: from localhost ([127.0.0.1]:51574 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gwcqb-0005Nz-MX for incoming@patchwork.ozlabs.org; Wed, 20 Feb 2019 20:08:21 -0500 Received: from eggs.gnu.org ([209.51.188.92]:33263) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gwchd-0006Sc-K9 for qemu-devel@nongnu.org; Wed, 20 Feb 2019 19:59:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gwchb-0001A8-Fz for qemu-devel@nongnu.org; Wed, 20 Feb 2019 19:59:05 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41056) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gwcha-00016s-Ng; Wed, 20 Feb 2019 19:59:03 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 80B0A3086275; Thu, 21 Feb 2019 00:58:48 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-120-8.rdu2.redhat.com [10.10.120.8]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 8F9A15D6AA; Thu, 21 Feb 2019 00:58:46 +0000 (UTC) From: Cleber Rosa To: qemu-devel@nongnu.org Date: Wed, 20 Feb 2019 19:57:46 -0500 Message-Id: <20190221005753.27955-14-crosa@redhat.com> In-Reply-To: <20190221005753.27955-1-crosa@redhat.com> References: <20190221005753.27955-1-crosa@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Thu, 21 Feb 2019 00:58:48 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 13/20] scripts/qemu.py: support adding a console with the default serial device X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Cornelia Huck , Eduardo Habkost , Aleksandar Rikalo , =?utf-8?q?Philippe_Mathieu-?= =?utf-8?b?RGF1ZMOp?= , Cleber Rosa , Wainer dos Santos Moschetta , Stefan Markovic , qemu-s390x@nongnu.org, Aleksandar Markovic , Caio Carrara , =?utf-8?q?Alex_Benn=C3=A9e?= , Aurelien Jarno Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The set_console() utility function traditionally adds a device either based on the explicitly given device type, or based on the machine type, a known good type of device. But, for a number of machine types, it may be impossible or inconvenient to add the devices my means of "-device" command line options, and then it may better to just use the "-serial" option and let QEMU itself, based on the machine type, set the device accordingly. To achieve that, the behavior of set_console() now flags the intention to add a console device on launch(), and if no explicit device type is given, and there's no definition on CONSOLE_DEV_TYPES, the "-serial" is going to be added to the QEMU command line, instead of raising exceptions. Based on testing with different machine types, the CONSOLE_DEV_TYPES is now being set to the bare essential entries (one entry to be honest), for machine types that can not easily give us a working console with "-serial". Signed-off-by: Cleber Rosa --- scripts/qemu.py | 39 +++++++++++++++++++-------------------- 1 file changed, 19 insertions(+), 20 deletions(-) diff --git a/scripts/qemu.py b/scripts/qemu.py index ee85309923..bd1d2e2b9a 100644 --- a/scripts/qemu.py +++ b/scripts/qemu.py @@ -42,11 +42,6 @@ def kvm_available(target_arch=None): #: Maps machine types to the preferred console device types CONSOLE_DEV_TYPES = { - r'^clipper$': 'isa-serial', - r'^malta': 'isa-serial', - r'^(pc.*|q35.*|isapc)$': 'isa-serial', - r'^(40p|powernv|prep)$': 'isa-serial', - r'^pseries.*': 'spapr-vty', r'^s390-ccw-virtio.*': 'sclpconsole', } @@ -129,6 +124,7 @@ class QEMUMachine(object): self._temp_dir = None self._launched = False self._machine = None + self._console_set = False self._console_device_type = None self._console_address = None self._console_socket = None @@ -248,13 +244,17 @@ class QEMUMachine(object): '-display', 'none', '-vga', 'none'] if self._machine is not None: args.extend(['-machine', self._machine]) - if self._console_device_type is not None: + if self._console_set: self._console_address = os.path.join(self._temp_dir, self._name + "-console.sock") chardev = ('socket,id=console,path=%s,server,nowait' % self._console_address) - device = '%s,chardev=console' % self._console_device_type - args.extend(['-chardev', chardev, '-device', device]) + args.extend(['-chardev', chardev]) + if self._console_device_type is None: + args.extend(['-serial', 'chardev:console']) + else: + device = '%s,chardev=console' % self._console_device_type + args.extend(['-device', device]) return args def _pre_launch(self): @@ -480,30 +480,29 @@ class QEMUMachine(object): line. This is a convenience method that will either use the provided - device type, of if not given, it will used the device type set - on CONSOLE_DEV_TYPES. + device type, of if not given, it will use the device type set + on CONSOLE_DEV_TYPES if a machine type is set, and a matching + entry exists on CONSOLE_DEV_TYPES. The actual setting of command line arguments will be be done at machine launch time, as it depends on the temporary directory to be created. - @param device_type: the device type, such as "isa-serial" + @param device_type: the device type, such as "isa-serial". If + None is given (the default value) a "-serial + chardev:console" command line argument will + be used instead, resorting to the machine's + default device type, if a machine type is set, + and a matching entry exists on CONSOLE_DEV_TYPES. @raises: QEMUMachineAddDeviceError if the device type is not given and can not be determined. """ - if device_type is None: - if self._machine is None: - raise QEMUMachineAddDeviceError("Can not add a console device:" - " QEMU instance without a " - "defined machine type") + self._console_set = True + if device_type is None and self._machine is not None: for regex, device in CONSOLE_DEV_TYPES.items(): if re.match(regex, self._machine): device_type = device break - if device_type is None: - raise QEMUMachineAddDeviceError("Can not add a console device:" - " no matching console device " - "type definition") self._console_device_type = device_type @property