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Thu, 30 Jul 2020 08:38:04 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2020-01-29; bh=fYdkKNzUmAEAASFvyVOY1gxPGlabooBwhMTDAwC7ovs=; b=yKTS0uk+3YFIJUctgZKyXWdl0SWovuzz/3cS88Uzl3kN83L/nLd9SDoijiapmDdL7BrE OUw1fRC3ZN78h3pOMSwFX8CuuBHJf4GTcLPAWg8jAnPcXVSlIpryuNbj9unJ4ajaSqzK FGeZ8ID4vmYXYc0Y5BBOCzu9xiNtZZT7Lzc/Y0/VbKCGQO8k7T9tN765LnqQjdidqdqB vzcO72BrUIE/g61TzXeLmTO748Z4+ihv6FQNSS8xP3RaS7ZcJkgjiJFEXP1yVsvmgBda hL/2nh6mJ5xFX2uMYbCqLGhzeXTCzLdQqqMEhNFxLvieEVoXWlq9MO9Ry578BPE0XSYQ 4g== From: Steve Sistare To: qemu-devel@nongnu.org Subject: [PATCH V1 15/32] vl: QEMU_START_FREEZE env var Date: Thu, 30 Jul 2020 08:14:19 -0700 Message-Id: <1596122076-341293-16-git-send-email-steven.sistare@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1596122076-341293-1-git-send-email-steven.sistare@oracle.com> References: <1596122076-341293-1-git-send-email-steven.sistare@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9698 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 adultscore=0 bulkscore=0 malwarescore=0 mlxscore=0 spamscore=0 mlxlogscore=999 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007300111 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9698 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 clxscore=1015 mlxlogscore=999 malwarescore=0 impostorscore=0 priorityscore=1501 spamscore=0 phishscore=0 suspectscore=1 bulkscore=0 mlxscore=0 lowpriorityscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007300111 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=156.151.31.85; envelope-from=steven.sistare@oracle.com; helo=userp2120.oracle.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/30 11:38:02 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [fuzzy] X-Spam_score_int: -53 X-Spam_score: -5.4 X-Spam_bar: ----- X-Spam_report: (-5.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Daniel P. Berrange" , "Michael S. Tsirkin" , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Juan Quintela , "Dr. David Alan Gilbert" , Markus Armbruster , Alex Williamson , Steve Sistare , Stefan Hajnoczi , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" For qemu upgrade and restart, we will re-exec() qemu with the same argv. However, qemu must start in a paused state and wait for the cprload command, and the original argv might not contain the -S option. To avoid modifying argv, provide the QEMU_START_FREEZE environment variable. If QEMU_START_FREEZE is set, then set autostart=3D0, like the -S option. Signed-off-by: Steve Sistare --- softmmu/vl.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/softmmu/vl.c b/softmmu/vl.c index 951994f..7016e39 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -4501,6 +4501,11 @@ void qemu_init(int argc, char **argv, char **envp) exit(0); } =20 + if (getenv("QEMU_START_FREEZE")) { + unsetenv("QEMU_START_FREEZE"); + autostart =3D 0; + } + if (incoming) { Error *local_err =3D NULL; qemu_start_incoming_migration(incoming, &local_err); --=20 1.8.3.1