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GET /api/patches/1954398/?format=api
{ "id": 1954398, "url": "http://patchwork.ozlabs.org/api/patches/1954398/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1719776434-435013-9-git-send-email-steven.sistare@oracle.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1719776434-435013-9-git-send-email-steven.sistare@oracle.com>", "list_archive_url": null, "date": "2024-06-30T19:40:31", "name": "[V2,08/11] vl: helper to request exec", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "5022721aa6fe6cb86d7708b550372474ca547483", "submitter": { "id": 71906, "url": "http://patchwork.ozlabs.org/api/people/71906/?format=api", "name": "Steve Sistare", "email": "steven.sistare@oracle.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1719776434-435013-9-git-send-email-steven.sistare@oracle.com/mbox/", "series": [ { "id": 413181, "url": "http://patchwork.ozlabs.org/api/series/413181/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=413181", "date": "2024-06-30T19:40:26", "name": "Live update: cpr-exec", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/413181/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1954398/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1954398/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oracle.com header.i=@oracle.com header.a=rsa-sha256\n header.s=corp-2023-11-20 header.b=AwV3ZTBL;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Sun, 30 Jun 2024 19:40:46 +0000" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=\n from:to:cc:subject:date:message-id:in-reply-to:references; s=\n corp-2023-11-20; bh=4uKXgAn4d6hJh3JzwucC45gtPiookX4h8suJNmSSDmA=; b=\n AwV3ZTBLF7NOyDdrwxzRUONH+cwp7tO2g/DpZV1KW686YsfmGsHfFHfGmFzOEjSU\n aQJE2tmp6/ZqLJ7T9TKbBwlTQb8XGxKPpykWueZ1OuSJqAGAtDXjQwAUHgw8KVqM\n rJciOGYJyUOEFSeTo86EEy6vat0k0aymvwOxXAS90GQNgAnCcgm9S0S6BYd6vDd0\n GlLBNlko90mGWppRpmhv5Ofb1cUgIHzLTOiquHD37Je//66N1PeLw4PfqCyyx7Sr\n Y1lCh/v0+tsxv4OtwsVxZMwvF7blNwpwVeKwABns3imTm1BWELQc1O1X+BhAa9DI\n 4GkOcSDOGOapIoTCye3PNw==", "From": "Steve Sistare <steven.sistare@oracle.com>", "To": "qemu-devel@nongnu.org", "Cc": "Peter Xu <peterx@redhat.com>, Fabiano Rosas <farosas@suse.de>,\n David Hildenbrand <david@redhat.com>,\n Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,\n Eduardo Habkost <eduardo@habkost.net>,\n Philippe Mathieu-Daude <philmd@linaro.org>,\n Paolo Bonzini <pbonzini@redhat.com>,\n \"Daniel P. Berrange\" <berrange@redhat.com>,\n Markus Armbruster <armbru@redhat.com>,\n Steve Sistare <steven.sistare@oracle.com>", "Subject": "[PATCH V2 08/11] vl: helper to request exec", "Date": "Sun, 30 Jun 2024 12:40:31 -0700", "Message-Id": "<1719776434-435013-9-git-send-email-steven.sistare@oracle.com>", "X-Mailer": "git-send-email 1.8.3.1", "In-Reply-To": "<1719776434-435013-1-git-send-email-steven.sistare@oracle.com>", "References": "<1719776434-435013-1-git-send-email-steven.sistare@oracle.com>", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16\n definitions=2024-06-30_16,2024-06-28_01,2024-05-17_01", "X-Proofpoint-Spam-Details": "rule=notspam policy=default score=0 suspectscore=0\n malwarescore=0\n adultscore=0 bulkscore=0 mlxlogscore=999 phishscore=0 spamscore=0\n mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1\n engine=8.12.0-2406180000 definitions=main-2406300157", "X-Proofpoint-ORIG-GUID": "JLC7LN32UQinUQ8IaB4vS5uDV9YeJhZc", "X-Proofpoint-GUID": "JLC7LN32UQinUQ8IaB4vS5uDV9YeJhZc", "Received-SPF": "pass client-ip=205.220.165.32;\n envelope-from=steven.sistare@oracle.com; helo=mx0a-00069f02.pphosted.com", "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, DKIMWL_WL_MED=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 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": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Add a qemu_system_exec_request() hook that causes the main loop to exit and\nexec a command using the specified arguments. This will be used during CPR\nto exec a new version of QEMU.\n\nSigned-off-by: Steve Sistare <steven.sistare@oracle.com>\n---\n include/sysemu/runstate.h | 3 +++\n system/runstate.c | 29 +++++++++++++++++++++++++++++\n 2 files changed, 32 insertions(+)", "diff": "diff --git a/include/sysemu/runstate.h b/include/sysemu/runstate.h\nindex 0117d24..cb669cf 100644\n--- a/include/sysemu/runstate.h\n+++ b/include/sysemu/runstate.h\n@@ -80,6 +80,8 @@ typedef enum WakeupReason {\n QEMU_WAKEUP_REASON_OTHER,\n } WakeupReason;\n \n+typedef void (*qemu_exec_func)(char **exec_argv);\n+\n void qemu_system_reset_request(ShutdownCause reason);\n void qemu_system_suspend_request(void);\n void qemu_register_suspend_notifier(Notifier *notifier);\n@@ -91,6 +93,7 @@ void qemu_register_wakeup_support(void);\n void qemu_system_shutdown_request_with_code(ShutdownCause reason,\n int exit_code);\n void qemu_system_shutdown_request(ShutdownCause reason);\n+void qemu_system_exec_request(qemu_exec_func func, const strList *args);\n void qemu_system_powerdown_request(void);\n void qemu_register_powerdown_notifier(Notifier *notifier);\n void qemu_register_shutdown_notifier(Notifier *notifier);\ndiff --git a/system/runstate.c b/system/runstate.c\nindex ec32e27..afc56e4 100644\n--- a/system/runstate.c\n+++ b/system/runstate.c\n@@ -40,6 +40,7 @@\n #include \"qapi/error.h\"\n #include \"qapi/qapi-commands-run-state.h\"\n #include \"qapi/qapi-events-run-state.h\"\n+#include \"qapi/type-helpers.h\"\n #include \"qemu/accel.h\"\n #include \"qemu/error-report.h\"\n #include \"qemu/job.h\"\n@@ -400,6 +401,8 @@ static NotifierList wakeup_notifiers =\n static NotifierList shutdown_notifiers =\n NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);\n static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);\n+qemu_exec_func exec_func;\n+static char **exec_argv;\n \n ShutdownCause qemu_shutdown_requested_get(void)\n {\n@@ -416,6 +419,11 @@ static int qemu_shutdown_requested(void)\n return qatomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);\n }\n \n+static int qemu_exec_requested(void)\n+{\n+ return exec_argv != NULL;\n+}\n+\n static void qemu_kill_report(void)\n {\n if (!qtest_driver() && shutdown_signal) {\n@@ -693,6 +701,23 @@ void qemu_system_shutdown_request(ShutdownCause reason)\n qemu_notify_event();\n }\n \n+static void qemu_system_exec(void)\n+{\n+ exec_func(exec_argv);\n+\n+ /* exec failed */\n+ g_strfreev(exec_argv);\n+ exec_argv = NULL;\n+ exec_func = NULL;\n+}\n+\n+void qemu_system_exec_request(qemu_exec_func func, const strList *args)\n+{\n+ exec_func = func;\n+ exec_argv = strv_from_str_list(args);\n+ qemu_notify_event();\n+}\n+\n static void qemu_system_powerdown(void)\n {\n qapi_event_send_powerdown();\n@@ -739,6 +764,10 @@ static bool main_loop_should_exit(int *status)\n if (qemu_suspend_requested()) {\n qemu_system_suspend();\n }\n+ if (qemu_exec_requested()) {\n+ qemu_system_exec();\n+ return false;\n+ }\n request = qemu_shutdown_requested();\n if (request) {\n qemu_kill_report();\n", "prefixes": [ "V2", "08/11" ] }