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Mon, 9 Jan 2023 20:17:30 +0800 (CST) Received: from localhost.localdomain (10.175.124.27) by dggpeml500022.china.huawei.com (7.185.36.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Mon, 9 Jan 2023 20:19:02 +0800 To: CC: , , , , , , Subject: [RESEND PATCH 1/2] migration: report migration related thread pid to libvirt Date: Mon, 9 Jan 2023 20:12:34 +0800 Message-ID: <20230109121235.2666476-2-jiangjiacheng@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20230109121235.2666476-1-jiangjiacheng@huawei.com> References: <20230109121235.2666476-1-jiangjiacheng@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml500022.china.huawei.com (7.185.36.66) X-CFilter-Loop: Reflected 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=45.249.212.255; envelope-from=jiangjiacheng@huawei.com; helo=szxga08-in.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jiang Jiacheng From: Jiang Jiacheng via Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1673267848903100001 Content-Type: text/plain; charset="utf-8" From: Zheng Chuan Report migration thread pid to libvirt in order to pin migration thread to different cpu. --- migration/migration.c | 3 +++ qapi/migration.json | 12 ++++++++++++ 2 files changed, 15 insertions(+) diff --git a/migration/migration.c b/migration/migration.c index 52b5d39244..2534e5a1f1 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -3955,6 +3955,9 @@ static void *migration_thread(void *opaque) MigThrError thr_error; bool urgent =3D false; =20 + /* report migration thread pid to libvirt */ + qapi_event_send_migration_pid(qemu_get_thread_id()); + rcu_register_thread(); =20 object_ref(OBJECT(s)); diff --git a/qapi/migration.json b/qapi/migration.json index 88ecf86ac8..aafc940617 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -1286,6 +1286,18 @@ { 'event': 'MIGRATION_PASS', 'data': { 'pass': 'int' } } =20 +## +# @MIGRATION_PID: +# +# Emitted when migration thread appear +# +# @pid: pid of migration thread +# +# Since: 7.2 +## +{ 'event': 'MIGRATION_PID', + 'data': { 'pid': 'int' } } + ## # @COLOMessage: # --=20 2.33.0